OMNICOM GROUP INC
S-4, 1995-06-19
ADVERTISING AGENCIES
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                                                    Registration  No. 33-
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ----------------------
                                    FORM S-4
                        REGISTRATION STATEMENT UNDER THE
                             SECURITIES ACT OF 1933
                              --------------------

                               OMNICOM GROUP INC.
               (Exact Name of Registrant as Specified in Charter)

       New York                        7311                      13-1514814
(State of Incorporation)   (Primary Standard Industrial       (I.R.S Employer
                             Classification Code Number)     Identification No.)

                               437 Madison Avenue
                            New York, New York 10022
                                 (212) 415-3600
    (Address, including zip code, and telephone number, including area code,
                  of Registrant's principal executive offices)
                              --------------------
                             BARRY J. WAGNER, ESQ.
                               Omnicom Group Inc.
                               437 Madison Avenue
                            New York, New York 10022
                                 (212) 415-3600
           (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)
                              --------------------
                                   Copies to:
MICHAEL D. DITZIAN, ESQ.                          D. RICHARD MCDONALD, ESQ.
    Davis & Gilbert                                  Dykema Gossett PLLC
     1740 Broadway                         1577 North Woodward Avenue, Suite 300
New York, New York  10019                     Bloomfield Hills, Michigan 48304
    (212) 468-4800                                     (810) 540-0700
                              --------------------
     Approximate  date of commencement of proposed sale of the securities to the
public:  As  soon as  practicable  after  this  Registration  Statement  becomes
effective and all other  conditions to the Merger  pursuant to the Agreement and
Plan of Merger described in the enclosed  Prospectus/Information  Statement have
been satisfied or waived.

     If the  securities  being  registered  on this  Form are being  offered  in
connection  with the formation of a holding company and there is compliance with
General Instruction G, check the following box: [ ]

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reimbursement plans, please check the following box: [ ]
                            ------------------------
                        CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
==============================================================================================================
                                                               Proposed          Proposed
                                               Amount           maximum           maximum          Amount of
            Title of securities                 to be       offering price       aggregate       registration
             being registered              registered (1)    per share (2)   offering price (2)     fee (2)
- --------------------------------------------------------------------------------------------------------------
<S>                                      <C>                    <C>             <C>                <C>   
Common Stock, $ .50 par value .......    1,000,000 shares       $58.75          $58,750,000        $20,258.63
==============================================================================================================
</TABLE>

(1)   Estimated  maximum  number of shares  issuable by Omnicom Group Inc. under
      the Agreement and Plan of Merger described in this Registration Statement.

(2)   Estimated   solely  for  purposes  of   calculating   the  amount  of  the
      registration  fee.  Pursuant to Rule  457(c),  based on the average of the
      high and low prices of the Common  Stock of Omnicom on June 14,  1995,  as
      reported by the New York Stock Exchange.
                              -------------------
     The Registrant  hereby amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.
================================================================================

<PAGE>
                               OMNICOM GROUP INC.

      Cross  Reference  Sheet  Pursuant to Rule 404(a) of the  Securities Act of
1933 and Item 501(b) of Regulation  S-K,  Showing the Location or Heading in the
Prospectus/Information  Statement of the Information  Required by Part I of Form
S-4.

                                              Location or Heading in
S-4 Item Number and Caption                   Prospectus/Information Statement
- ---------------------------                   --------------------------------

A. Information about the Transaction

      Forepart of the Registration
      Statement and Outside Front
      Cover Page of Prospectus                Facing page; Cross Reference
                                              Sheet, Outside Front Cover Page of
                                              Prospectus/Information Statement

      Inside Front and Outside Back
      Cover Pages of Prospectus               Inside Front Cover Page of 
                                              Prospectus/Information Statement;
                                              "Available Information"; "Table of
                                              Contents"

      Risk Factors, Ratio of Earnings
      to Fixed Charges and Other
      Information                             "Summary"; "Summary of
                                              Comparative Per Share Data";
                                              "Selected Financial Data of
                                              Ross Roy"

      Terms of the Transaction                "Summary"; "The Merger
                                              Agreement and the Merger--
                                              Background of and Ross Roy's
                                              Reasons for the Merger"; 
                                              "--Opinion of Financial Advisor"; 
                                              "--Omnicom's Reasons for the
                                              Merger"; "--The Merger Agreement"


      Pro Forma Financial Information         *

      Material Contacts with the
      Company Being  Acquired                 "Summary"; "The Merger Agreement
                                              and the Merger--Interests  of
                                              Ross  Roy's Management in the
                                              Merger"; "--Opinion of Financial
                                              Advisor"

      Additional Information Required
      for Reoffering by Persons
      Parties Deemed to be
      Underwriters                             *

      Interests of Named Experts and
      Counsel                                  *

      Disclosure of Commission Position
      On Indemnification for
      Securities Act Liabilities               *

<PAGE>

                                              Location or Heading in
S-4 Item Number and Caption                   Prospectus/Information Statement
- ---------------------------                   --------------------------------

B.  Information About the Registrant

      Information with Respect to S-3
      Registrants                              "Summary"; "Incorporation of
                                               Certain Information by 
                                               Reference"; "Business Information
                                               Concerning Omnicom"; "Selected 
                                               Financial Data of Omnicom";
                                               "Description of Omnicom Capital
                                               Stock"

      Incorporation of Certain
      Information by Reference                 "Incorporation of Certain
                                               Information  by Reference"

      Information with Respect to S-2
      or S-3 Registrants                       *

      Incorporation of Certain
      Information by Reference                 *

      Information with Respect to
      Registrants Other Than S-3
      or S-2 Registrants                       *


C.  Information About the Company Being Acquired

      Information with Respect to S-3
      Companies                                *

      Information with Respect to
      S-2 or S-3 Companies                     *

      Information with Respect to
      Companies Other Than
      S-3 or S-2 Companies                     "Summary"; "Business Information
                                               Concerning Ross Roy -- Executive 
                                               Officers and Directors, Principal
                                               Shareholders";"Selected Financial
                                               Data of Ross Roy"; "Management's
                                               Discussion and Analysis of 
                                               Financial Condition and Results
                                               of Operations of Ross Roy";
                                               "Description of Ross Roy
                                               Capital Stock"; "Index to Ross
                                               Roy Financial Statements"


D.  Voting and Management Information

      Information if Proxies, Consents
      or Authorizations are to be Solicited    *


      Information if Proxies, Consents
      or Authorizations are not to be
      Solicited or in Exchange Offer           "Summary"; "Business Information 
                                               Concerning  Ross Roy -- Executive
                                               Officers and Directors, Principal
                                               Shareholders"; "The Merger Agree-
                                               ment and the Merger -- Other 
                                               Considerations - No Dissenters' 
                                               Rights"
- -----------------
* Not applicable.

<PAGE>
                 [Letterhead of Ross Roy Communications, Inc.]

                          --------------------------

                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS

                         To Be Held On [_______, 1995]

                         ---------------------------

To The Shareholders of
  Ross Roy Communications, Inc.

     A Special Meeting of the shareholders of Ross Roy  Communications,  Inc., a
Michigan corporation ("Ross Roy"), will be held on ________, 1995, at _____ A.M.
(local  time),  at the  offices  of Ross  Roy,  100  Bloomfield  Hills  Parkway,
Bloomfield  Hills,  Michigan,  48304,  to consider  and vote upon the  following
matters described in the accompanying Prospectus/Information Statement:

     1.  To  consider  and act upon the  approval  of an  Agreement  and Plan of
         Merger  (the  "Merger  Agreement")  pursuant  to  which a  wholly-owned
         subsidiary of Omnicom Group Inc., a New York  corporation  ("Omnicom"),
         will be merged  with and into Ross Roy,  such that Ross Roy will be the
         surviving  corporation  of such merger and will  become a  wholly-owned
         subsidiary  of Omnicom and each share of Ross Roy Common  Stock will be
         converted  into the  right to  receive  a  certain  number of shares of
         Common  Stock  of  Omnicom,   all  as  more  fully   described  in  the
         accompanying Prospectus/Information Statement; and

     2.  To  consider  and act upon the  approval  of an escrow  agreement  (the
         "Escrow  Agreement")  to be entered into in connection  with the Merger
         Agreement,  and the  appointment of Chris A. Lawson as  representative,
         and Richard C. Ward as alternate, to act as the collective agent of the
         shareholders  of Ross Roy and  certain  others  under  the terms of the
         Escrow  Agreement,  all as more  fully  described  in the  accompanying
         Prospectus/Information Statement; and

     3.  To consider  and act upon any other business  which may  properly  come
         before the Special Meeting or any adjournment thereof.

     Only holders of record of Class A Common  Stock,  par value $1.00 per share
("Class A Common  Stock"),  and Class B Common Stock,  par value $1.00 per share
("Class B Common  Stock"),  of Ross Roy as of the close of  business  on ______,
1995 are entitled to notice of and to vote at the Special Meeting.

      The  affirmative  votes of the  holders of a majority  of the  outstanding
shares of Class A Common  Stock,  voting  as a class,  and of the  holders  of a
majority of Class B Common  Stock,  voting as a class,  are necessary to approve
the various  proposals.  None of the proposals shall become effective unless all
of the proposals are adopted by the requisite vote of the Ross Roy shareholders.

      As of ___________, 1995, directors and executive officers of Ross Roy as a
group  owning  ___% of the  Class A Common  Stock and 100% of the Class B Common
Stock  have  expressed  an  intention  to  vote  in  favor  of the  transactions
contemplated herein.

                 WE ARE NOT ASKING YOU FOR A PROXY AND YOU ARE
                       REQUESTED NOT TO SEND US A PROXY.

                          By Order of The Ross Roy Board of Directors

                                      VERNE C. HAMPTON II
                                           Secretary

Dated:    _____________, 1995

<PAGE>
                             SUBJECT TO COMPLETION
                              DATED JUNE 19, 1995

                         ROSS ROY COMMUNICATIONS, INC.

                             INFORMATION STATEMENT

                                ----------------
                               OMNICOM GROUP INC.
                                   PROSPECTUS
                                ----------------

      This  Prospectus/Information  Statement  is being  furnished to holders of
Class A Common Stock,  par value $1.00 per share ("Class A Common  Stock"),  and
Class B Common  Stock,  par  value  $1.00 per  share  ("Class  B Common  Stock")
(collectively,  "Ross Roy Common Stock"),  of Ross Roy  Communications,  Inc., a
Michigan  corporation ("Ross Roy"), in connection with proposals (a) to adopt an
Agreement and Plan of Merger (the "Merger  Agreement")  providing for the merger
(the "Merger") of RRC Acquisition Inc.  ("OmniSub"),  a Michigan corporation and
wholly-owned   subsidiary  of  Omnicom  Group  Inc.,  a  New  York   corporation
("Omnicom"), with and into Ross Roy, with Ross Roy as the surviving corporation,
and (b) to adopt an Escrow  Agreement (the "Escrow  Agreement")  pursuant to the
Merger Agreement and to appoint Chris A. Lawson as  representative,  and Richard
C. Ward as alternate,  to act as the collective agent of the holders of Ross Roy
Common Stock and certain others under the terms of the Escrow Agreement.

      Omnicom  has  filed a  Registration  Statement  with  the  Securities  and
Exchange  Commission covering the shares of Omnicom Common Stock to be issued in
connection with the Merger. This  Prospectus/Information  Statement,  along with
the  documents  and  portions of  documents  incorporated  herein by  reference,
constitutes  the  Prospectus  of  Omnicom  filed as a part of such  Registration
Statement.

      This  Prospectus/Information  Statement is also being furnished to the EPU
Holder and the Former Eligible Employee  Holders,  all as defined and more fully
described herein,  who will receive shares of Omnicom Common Stock as payment of
rights owned by such individuals subject to the same terms and conditions as the
other shareholders of Ross Roy.

      This  Prospectus/Information  Statement  constitutes  both an  information
statement  of Ross Roy with respect to the Special  Meeting and a prospectus  of
Omnicom with respect to up to 1,000,000 shares of Omnicom Common Stock which may
be issued in connection with the Merger.

THE  SECURITIES OF OMNICOM TO BE OFFERED IN CONNECTION  WITH THE MERGER HAVE NOT
BEEN APPROVED OR DISAPPROVED  BY THE  SECURITIES AND EXCHANGE  COMMISSION OR ANY
STATE  SECURITIES  COMMISSION NOR HAS THE SECURITIES AND EXCHANGE  COMMISSION OR
ANY STATE  SECURITIES  COMMISSION  PASSED UPON THE  ACCURACY OR ADEQUACY OF THIS
PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.



                 WE ARE NOT ASKING YOU FOR A PROXY AND YOU ARE
                       REQUESTED NOT TO SEND US A PROXY.

                          ---------------------------

     The date of this Prospectus/Information Statement is [       ], 1995.

                           --------------------------
<PAGE>
     No  person  has  been  authorized  to give any  information  or to make any
representation  other  than  those  contained  in  this   Prospectus/Information
Statement in connection  with the Special  Meeting or the offering of securities
made hereby and, if given or made, such information or  representation  must not
be relied  upon as having  been  authorized  by  Omnicom,  Ross Roy or any other
person.  This  Prospectus/Information  Statement does not constitute an offer to
sell, or a solicitation of an offer to buy, any securities,  in any jurisdiction
to or  from  any  person  to  whom  it is not  lawful  to  make  such  offer  or
solicitation. Neither the delivery of this Prospectus/Information Statement, nor
any distribution of securities made hereunder,  shall,  under any circumstances,
create an implication that there has been no change in the affairs of Omnicom or
Ross Roy  since  the date  hereof or that the  information  contained  herein is
correct as of any time subsequent to the date hereof.

                               -----------------

                             AVAILABLE INFORMATION

     Omnicom is  subject to the  informational  requirements  of the  Securities
Exchange  Act of  1934,  as  amended  (the  "Exchange  Act")  and in  accordance
therewith files reports and other  information  with the Securities and Exchange
Commission  (the "SEC").  The reports,  proxy  statements and other  information
filed  by  Omnicom  with  the SEC can be  inspected  and  copied  at the  public
reference  facilities  maintained by the SEC at Judiciary Plaza,  Room 1024, 450
Fifth Street, N.W.,  Washington,  D.C. 20549, and at the Regional Offices of the
SEC at 7 World Trade  Center,  13th Floor,  New York,  New York  10048-1102  and
Citicorp  Center,  500  West  Madison  Street,  Suite  1400,  Chicago,  Illinois
60661-2511.  Copies  of such  material  also can be  obtained  from  the  Public
Reference  Section of the SEC,  Washington,  D.C. 20549 at prescribed  rates. In
addition,  material  filed by Omnicom can be inspected at the offices of the New
York Stock  Exchange,  Inc. (the "NYSE"),  20 Broad Street,  New York,  New York
10005, on which the Omnicom Common Stock is listed.

     Omnicom  has  filed  with  the SEC a  Registration  Statement  on Form  S-4
(together with all  amendments,  exhibits,  annexes and schedules  thereto,  the
"Registration  Statement")  under the  Securities  Act of 1933,  as amended (the
"Securities  Act"),  with  respect to the shares of Omnicom  Common  Stock to be
issued pursuant to the Merger.  This  Prospectus/Information  Statement does not
contain all the information  set forth in the  Registration  Statement,  certain
portions of which have been omitted as permitted by the rules and regulations of
the SEC. Such  additional  information  may be obtained from the SEC's principal
office in Washington,  D.C. Statements contained in this  Prospectus/Information
Statement  or  in  any  document  incorporated  in  this  Prospectus/Information
Statement by  reference  as to the  contents of any  contract or other  document
referred to herein or therein are not necessarily complete, and in each instance
reference  is made to the copy of such  contract or other  document  filed as an
exhibit  to the  Registration  Statement  or  such  other  document,  each  such
statement being qualified in all respects by such reference.

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following  documents  filed with the SEC by Omnicom (File No.  1-10551)
pursuant  to  the   Exchange   Act  are   incorporated   by  reference  in  this
Prospectus/Information Statement:

          1.  Omnicom's  Annual  Report on Form 10-K for the  fiscal  year ended
     December 31, 1994;

          2. Omnicom's Quarterly Report on Form 10-Q for the quarter ended March
     31, 1995;

          3.  Omnicom's  Proxy  Statement  dated  April 7, 1995,  for the Annual
     Meeting of Shareholders held on May 22, 1995; and

          4. The  description of Omnicom's  Common Stock  contained in Omnicom's
     Registration  Statement  pursuant to the Exchange  Act,  together  with all
     amendments or reports filed for the purpose of updating such description.

                                       2
<PAGE>


     All  documents  and  reports  subsequently  filed by  Omnicom  pursuant  to
Sections  13(a),  13(c),  l4 or 15(d) of the Exchange Act after the date of this
Prospectus/Information Statement shall be deemed to be incorporated by reference
in this  Prospectus/Information  Statement and to be a part hereof from the date
of filing of such  documents or reports.  Any statement  contained in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to
be modified or superseded for purposes of this Prospectus/Information  Statement
to the extent that a  statement  contained  herein or in any other  subsequently
filed document that also is or is deemed to be incorporated by reference  herein
modifies  or  supersedes  such  statement.  Any such  statement  so  modified or
superseded  shall  not be  deemed,  except  as so  modified  or  superseded,  to
constitute a part of this Prospectus/Information Statement.

     This  Prospectus/Information  Statement  incorporates documents relating to
Omnicom by reference that are not presented herein or delivered  herewith.  Such
documents  (other than  exhibits to such  documents,  unless such  exhibits  are
specifically  incorporated  herein by  reference)  are  available to any person,
including any beneficial owner, to whom this Prospectus/Information Statement is
delivered,  without charge, on written or oral request directed to Omnicom Group
Inc.,  437  Madison  Avenue,  New York,  New York  10022,  Attention:  Secretary
(telephone  number (212)  415-3600).  In order to ensure timely  delivery of the
documents, any requests should be made by [           ], 1995.

     This  Prospectus/Information  Statement  incorporates documents relating to
Ross Roy by reference that are not presented herein or delivered herewith.  Such
documents  (other than  exhibits to such  documents,  unless such  exhibits  are
specifically  incorporated  herein by  reference)  are  available to any person,
including any beneficial owner, to whom this Prospectus/Information Statement is
delivered,  without  charge,  on written or oral  request  directed  to Ross Roy
Communications,  Inc., 100 Bloomfield Hills Parkway,  Bloomfield Hills, Michigan
48304, Attention: Chris A. Lawson (telephone number (810) 433-6000). In order to
ensure  timely  delivery of  the  documents,  any  requests  should  be  made by
[            ], 1995.




                                       3
<PAGE>
                               TABLE OF CONTENTS

AVAILABLE INFORMATION .....................................................   2

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE ...........................   2

SUMMARY ...................................................................   5

COMPARATIVE PER SHARE DATA ................................................  13

MARKET PRICE DATA .........................................................  14

THE SPECIAL MEETING .......................................................  15
    Date, Time and Place of Special Meeting ...............................  15
    Business to be Transacted at the Special Meeting ......................  15
    Record Date, Voting Rights ............................................  15
    Voting Requirements ...................................................  15
    Management Ownership ..................................................  15

THE MERGER AGREEMENT AND THE MERGER .......................................  16
    Background of and Ross Roy's Reasons for the Merger; Opinion of
      Financial Advisor; Recommendation of the Ross Roy Board of
      Directors ...........................................................  16
    Omnicom's Reasons for the Merger ......................................  19
    Interests of Ross Roy's Management in the Merger ......................  20
    Procedure for Distributing Shares of Omnicom Common Stock
      to Ross Roy Shareholders ............................................  21
    The Merger Agreement ..................................................  21
    Other Considerations ..................................................  25

THE ESCROW AGREEMENT AND THE ROSS ROY SHAREHOLDER REPRESENTATIVE ..........  28

BUSINESS INFORMATION CONCERNING OMNICOM ...................................  30

SELECTED FINANCIAL DATA OF OMNICOM ........................................  31

BUSINESS INFORMATION CONCERNING ROSS ROY ..................................  32
    Description of Business ...............................................  32
    Executive Officers and Directors; Principal Shareholders ..............  33

SELECTED FINANCIAL DATA OF ROSS ROY .......................................  35

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
AND RESULTS OF OPERATIONS OF ROSS ROY .....................................  36
    Results of Operations .................................................  36
    Capital Resources and Liquidity .......................................  38

DESCRIPTION OF OMNICOM CAPITAL STOCK ......................................  39

DESCRIPTION OF ROSS ROY CAPITAL STOCK .....................................  39

COMPARISON OF SHAREHOLDER RIGHTS ..........................................  40

LEGAL MATTERS .............................................................  45

EXPERTS ...................................................................  45



                                       4
<PAGE>
- --------------------------------------------------------------------------------

                                    SUMMARY

     The following is a brief summary of certain  information  contained in this
Prospectus/Information  Statement.  This  summary is not intended to be complete
and is qualified in its entirety by reference to the more  detailed  information
contained  in  or  incorporated  by  reference  in  this  Prospectus/Information
Statement.

                                 The Companies

Omnicom Group Inc. ..........   Omnicom,  through its wholly and partially owned
                                companies,  operates  advertising agencies which
                                plan,  create,  produce and place advertising in
                                various   media  such  as   television,   radio,
                                newspapers  and  magazines;  and offers  clients
                                such    additional    services   as    marketing
                                consultation,  consumer market research,  design
                                and  production  of   merchandising   and  sales
                                promotion  programs and  materials,  direct mail
                                advertising, corporate identification and public
                                relations.    According    to   the    unaudited
                                industry-wide  figures  published  in the  trade
                                journal,  Advertising  Age, in 1994  Omnicom was
                                ranked as the third largest  advertising  agency
                                group worldwide.

                                Omnicom  operates  three  separate,  independent
                                agency networks: the BBDO Worldwide Network, the
                                DDB  Needham  Worldwide  Network  and  the  TBWA
                                International  Network.  Omnicom  also  operates
                                independent agencies,  Altschiller & Company and
                                Goodby,  Silverstein  &  Partners,  and  certain
                                marketing  service  and  specialty   advertising
                                companies   through   its   Diversified   Agency
                                Services Division.

                                The principal  executive  offices of Omnicom are
                                located at 437  Madison  Avenue,  New York,  New
                                York 10022, telephone number (212) 415-3600.

RRC Acquisition Inc. .......    OmniSub  was formed  by  Omnicom to  effect  the
                                proposed  Merger  with  Ross  Roy  and  has  not
                                engaged in any active business.

Ross Roy 
Communications, Inc. .......    Ross   Roy   is   a   full   service   marketing
                                communications  company,  which was  founded  in
                                1926.  Ross Roy offers a full range of  services
                                that   include   both  media   advertising   and
                                marketing    communications    and   promotional
                                services.   These  services  consist  of  direct
                                marketing,  sales promotion,  video  production,
                                database  management,  telemarketing,  training,
                                incentive  administration,  production  of shows
                                and  meetings,   sales   support   services  and
                                satellite teleconferencing. It is also active in
                                the  development  and use of new  communications
                                technologies.

                                The principal  executive offices of Ross Roy are
                                located  at  100   Bloomfield   Hills   Parkway,
                                Bloomfield  Hills,  Michigan  48304,   telephone
                                number (810) 433-6000.

                              The Special Meeting
Date, Time and Place
of Special Meeting .......      The  Special  Meeting  will  be  held on       ,
                                1995  at  _____  A.M.   (local  time),   at  100
                                Bloomfield  Hills  Parkway,   Bloomfield  Hills,
                                Michigan 48304.

Record Date; Shares
Entitled To Vote .........      Holders   of   record  of   shares  of  Class  A
                                Common  Stock and  Class B Common  Stock of Ross
                                Roy  (collectively,  "Ross Roy Shareholders") at
                                the close of business  on [ ] 1995 (the  "Record
                                Date"), are entitled to notice of and to vote at
                                the  Special  Meeting.  At such date  there were
                                outstanding  [ ] shares of Class A Common Stock,
                                each of  which will be  entitled  to one vote at

- --------------------------------------------------------------------------------

                                       5

<PAGE>  
- --------------------------------------------------------------------------------

                                the Special Meeting,  and 54,800 shares of Class
                                B Common  Stock,  each of which will be entitled
                                to one vote at the Special Meeting.

Purpose of the 
Special Meeting ...........     The  purpose  of  the  Special   Meeting  is  to
                                consider and vote upon the following matters:

                                (a) a proposal to approve  the Merger  Agreement
                                    and the transactions  contemplated  thereby,
                                    including  without  limitation the Merger of
                                    OmniSub  with and into Ross Roy  pursuant to
                                    the  Merger  Agreement,  such  that Ross Roy
                                    will be the  surviving  corporation  of such
                                    Merger  and  will   become  a   wholly-owned
                                    subsidiary  of  Omnicom,  and each  share of
                                    Ross Roy Common Stock will be converted into
                                    the  right  to  receive  shares  of  Omnicom
                                    Common  Stock,   as  more  fully   described
                                    herein;

                                (b) a proposal to approve  the Escrow  Agreement
                                    and the transactions  contemplated  thereby,
                                    and  to   appoint   Chris   A.   Lawson   as
                                    representative,   and  Richard  C.  Ward  as
                                    alternate,  to act on behalf of the Ross Roy
                                    Shareholders  and certain  others  under the
                                    terms of the Escrow Agreement; and

                                (c) such  other  proposals  as may  properly  be
                                    brought  before the Special  Meeting and any
                                    adjournment thereof.

                                None of  these  matters  will  become  effective
                                unless all of the  proposals  are adopted by the
                                requisite vote of the Ross Roy Shareholders.

Vote Required ...............   The  approval  of  the   various   proposals  by
                                Ross   Roy   Shareholders   will   require   the
                                affirmative  votes of the  holders of a majority
                                of the  outstanding  shares  of  Class A  Common
                                Stock  voting as a class,  and the  holders of a
                                majority  of the  outstanding  shares of Class B
                                Common Stock, voting as a class.

                                As of the Record Date,  directors  and executive
                                officers  of  Ross  Roy  owned,  of  record,  an
                                aggregate  of ________  shares of Class A Common
                                Stock,  constituting  ____%  of the  outstanding
                                Class A  Common  Stock as of such  date,  and an
                                aggregate  of  54,800  shares  of Class B Common
                                Stock,  constituting  100%  of  the  outstanding
                                Class B Common  Stock as of such  date.  Each of
                                such  individuals  has expressed an intention to
                                vote  in   favor  of  the   various   proposals.
                                Accordingly,   the  proposals  can  be  approved
                                without the  affirmative  vote of any other Ross
                                Roy Shareholders.

              Description of Certain Terms of the Merger Agreement

The Proposed Merger .......     Subject  to  the   approval  of   the  Ross  Roy
                                Shareholders  of the Merger  Agreement,  OmniSub
                                will be merged  with and into Ross Roy with Ross
                                Roy as the surviving corporation. As a result of
                                the  Merger,  the  business  of Ross Roy will be
                                operated  as  a   wholly-owned   subsidiary   of
                                Omnicom, as part of Omnicom's Diversified Agency
                                Services Division.

Conversion of Ross Roy
Common Stock .............      If the  Merger  is  consummated, each  share  of
                                Ross Roy  Common  Stock will be  converted  into
                                shares of  Omnicom  Common  Stock,  based upon a
                                formula  Conversion  Price  described more fully
                                under "The Merger Agreement  and the Merger--The

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                                       6
<PAGE>
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                                Merger  Agreement--Determination  of  Conversion
                                Price",  and the  "Market  Value" of the Omnicom
                                Common Stock.  The actual  "Market Value" of the
                                Omnicom  Common Stock shall be determined by the
                                average  of the  closing  prices  per  share  of
                                Omnicom  Common  Stock  reported on the New York
                                Stock  Exchange for the 20  consecutive  trading
                                days ending two business days immediately  prior
                                to the date the Merger  Agreement is closed (the
                                "Closing Date"). Ross Roy Shareholders otherwise
                                entitled to a fractional share of Omnicom Common
                                Stock   will  be  paid  cash  in  lieu  of  such
                                fractional share.

                                The actual  Conversion  Price will be  dependent
                                upon the  outstanding  number  of shares of Ross
                                Roy  Common  Stock  at the time  the  Merger  is
                                legally effective under the laws of the State of
                                Michigan (the  "Effective  Time of the Merger"),
                                as well as the amounts payable to the EPU Holder
                                and the Former  Eligible  Employee  Holders,  as
                                defined and described  more fully under "Payment
                                of Certain  Obligations of Ross Roy" below,  and
                                "The Merger Agreement and the Merger--The Merger
                                Agreement--Determination  of Conversion  Price".
                                The total  number of  shares of  Omnicom  Common
                                Stock to be issued to the Ross Roy  Shareholders
                                based  upon  such   Conversion   Price  will  be
                                dependent  on the  Market  Value of the  Omnicom
                                Common Stock. In order to make certain estimates
                                in   this    Prospectus/Information    Statement
                                relating to the  consideration to be paid to the
                                Ross Roy Shareholders,  it has been assumed that
                                at the Effective  Time of the Merger (i) 428,453
                                shares  of  Ross  Roy   Common   Stock  will  be
                                outstanding  (consisting of the [403,253] shares
                                currently outstanding and an additional [25,200]
                                shares  which  may be  issued  between  the date
                                hereof and the  Effective  Time of the Merger to
                                holders of rights and options to purchase  Class
                                A Common Stock), (ii) there will be no change in
                                the  amount  payable to the EPU Holder by virtue
                                of  the   federal   capital   gains  rate  being
                                increased or decreased from the current 28%, and
                                (iii)  there will be no persons in the  category
                                of Former Eligible  Employee  Holders other than
                                the one person  currently  in that  category and
                                from whom  Ross Roy  purchased  2,400  shares of
                                Ross Roy  Common  Stock upon his  retirement  in
                                December 1994. Based on these assumptions,  each
                                share  of  Ross  Roy  Common   Stock   would  be
                                converted  into the right to  receive  shares of
                                Omnicom  Common  Stock  having a Market Value of
                                $118.21.  Assuming  that the Market Value of the
                                Omnicom Common Stock were $58.875 (which was the
                                closing price per share of Omnicom  Common Stock
                                on the New York Stock  Exchange on the last full
                                trading day prior to the  execution and delivery
                                of the Merger Agreement), each share of Ross Roy
                                Common Stock would be  converted  into the right
                                to  receive  2.0078  shares  of  Omnicom  Common
                                Stock.

Payment of Certain
Obligations of Ross Roy ...     Ross  Roy  has  outstanding  obligations to make
                                certain payments as a result of the consummation
                                of the  Merger,  based  upon  the  consideration
                                received  by the  Ross Roy  Shareholders.  These
                                obligations,  and the  manner in which  they are
                                being satisfied, are as follows:

                                (a) Under Ross Roy's 1984  Equity  Participation
                                    Plan  (the "EPU  Plan"),  a holder of equity
                                    participation    units   ("EPUs")    granted
                                    thereunder has the right to receive,  upon a
                                    change in  control  of Ross Roy,  payment in
                                    respect  of his EPUs in an  amount  equal to
                                    the excess of the consideration  received by
                                    the  Ross Roy  Shareholders  over  the  base

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                                       7
<PAGE>
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                                    price of such EPUs ($21.62 per share),  plus
                                    a tax gross-up  factor.  There are currently
                                    10,000  EPUs  outstanding,  all of which are
                                    held by Chris A. Lawson (the "EPU  Holder"),
                                    the  Executive   Vice  President  and  Chief
                                    Financial Officer of Ross Roy.  Accordingly,
                                    at the Effective Time,  Omnicom will satisfy
                                    this  obligation to the EPU Holder in shares
                                    of Omnicom  Common  Stock as if such  person
                                    were a Ross Roy  Shareholder,  including the
                                    indemnification obligations described below.

                                (b) Under Ross Roy's  Articles of  Incorporation
                                    (the "Ross Roy Articles"), if an employee of
                                    Ross  Roy  retires  (after  reaching  normal
                                    retirement  age) or dies, his shares of Ross
                                    Roy Common Stock are repurchased by Ross Roy
                                    at  their   formula   book  value  price  as
                                    calculated in  accordance  with the Ross Roy
                                    Articles. If a change in control of Ross Roy
                                    occurs within one year of such retirement or
                                    death,  such former  employee  (the  "Former
                                    Eligible  Employee  Holder")  is entitled to
                                    receive   his   pro   rata   share   of  the
                                    consideration received by the other Ross Roy
                                    Shareholders  (as  reduced  by  any  amounts
                                    theretofore  paid  to  him  by  Ross  Roy in
                                    respect of his  shares).  There is currently
                                    one Former  Eligible  Employee  Holder  from
                                    whom  Ross Roy  purchased  2,400  shares  of
                                    Class  A  Common  Stock  in  December  1994.
                                    However,   there   could   be  more  at  the
                                    Effective  Time of the Merger  (although  no
                                    current  employee of the Company will attain
                                    normal   retirement  age  between  the  date
                                    hereof and December 31, 1995).  Accordingly,
                                    at the Effective Time,  Omnicom will satisfy
                                    this   obligation  to  the  Former  Eligible
                                    Employee  Holder  and  any  other  Ross  Roy
                                    Shareholder  who  becomes a Former  Eligible
                                    Employee  Holder in shares of Omnicom Common
                                    Stock  as if  such  persons  were  Ross  Roy
                                    Shareholders,  including the indemnification
                                    obligations described below.

Indemnification
Obligations ................    Pursuant  to the Merger Agreement,  the Ross Roy
                                Shareholders  are required to indemnify  Omnicom
                                and its  affiliates  against  certain losses and
                                damages arising under the Merger Agreement,  and
                                the EPU  Holder  and  Former  Eligible  Employee
                                Holders   will   share   these   indemnification
                                obligations  of the Ross Roy  Shareholders  on a
                                pro rata basis.  Losses and damages may arise as
                                a result of (i) the  inaccuracy or breach of any
                                representation  or  warranty or covenant of Ross
                                Roy  contained in the Merger  Agreement,  or the
                                breach of or  failure  by Ross Roy to perform or
                                discharge  any  of  its  obligations  under  the
                                Merger  Agreement,  or (ii) the  payment  of any
                                judgment or settlement in respect of litigations
                                and  threatened   litigations  set  forth  on  a
                                schedule  to the Merger  Agreement  in excess of
                                the aggregate reserves recorded for such matters
                                in the  financial  records  of Ross Roy,  all of
                                which are contingencies whose outcomes could not
                                reasonably  be  determined  at the  time  of the
                                execution     of    the    Merger     Agreement.
                                Indemnification obligations arising under clause
                                (i) of this  paragraph  arise only to the extent
                                that such losses and damages exceed $250,000.

                                To  satisfy  the   indemnification   obligations
                                arising   under  clause  (i)  of  the  preceding
                                paragraph, shares of Omnicom Common Stock having
                                a Market  Value of  $2,525,000  shall be  placed
                                into  an  escrow  account (the  "General  Escrow

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                                       8
<PAGE>
- --------------------------------------------------------------------------------

                                Fund")  under the terms of the Escrow  Agreement
                                (the "Escrow  Agreement")  among  Omnicom,  Ross
                                Roy, the Ross Roy Shareholder Representative and
                                The Chase Manhattan Bank,  N.A., as escrow agent
                                (the   "Escrow    Agent").    To   satisfy   the
                                indemnification obligations arising under clause
                                (ii)  of  the  preceding  paragraph,  shares  of
                                Omnicom  Common  Stock  having a Market Value of
                                $1,300,000  will be  placed  into an  additional
                                escrow account (the "Special Escrow Fund") under
                                the    Escrow     Agreement.     Indemnification
                                obligations  arising  under  clause  (i)  of the
                                preceding  paragraph may be satisfied  only from
                                the General Escrow Fund, and those arising under
                                clause (ii) of the  preceding  paragraph  may be
                                satisfied only from the Special Escrow Fund.

                                Each  of the  Ross  Roy  Shareholders,  the  EPU
                                Holder and the Former Eligible  Employee Holders
                                shall  deposit his pro rata share of the General
                                Escrow Fund and Special Escrow Fund based on the
                                number  of  shares  of  Omnicom   Common   Stock
                                received in the Merger.

                                The indemnification  obligations of the Ross Roy
                                Shareholders,  the EPU  Holder  and  the  Former
                                Eligible Employee Holders will be limited to and
                                satisfied  solely from,  the General Escrow Fund
                                and   Special   Escrow  Fund  under  the  Escrow
                                Agreement  (such that neither Omnicom nor any of
                                its  affiliates  will have any  recourse for the
                                payment of any losses or other  damages  arising
                                out  of  the  transactions  contemplated  by the
                                Merger   Agreement    against   the   Ross   Roy
                                Shareholders,  the  EPU  Holder  or  the  Former
                                Eligible Employee Holders, nor shall any of such
                                persons be personally liable for any such losses
                                or damages).  Indemnification  obligations to be
                                satisfied  out of the  General  Escrow Fund will
                                terminate   on  the   earlier   of   the   first
                                independent  audit  report,  if any, of Ross Roy
                                following  the  Effective  Time of the Merger or
                                one year from the  Effective  Time  (except that
                                claims  asserted  in writing on or prior to such
                                date will survive until they are decided and are
                                final    and    binding    on   the    parties).
                                Indemnification  obligations to be satisfied out
                                of the  Special  Escrow Fund will  terminate  at
                                such   time   as   all   matters   indemnifiable
                                thereunder shall have been fully paid or finally
                                settled.

                                See "The Merger  Agreement  and the  Merger--The
                                Merger  Agreement--Indemnification  Obligations"
                                and  "The  Escrow  Agreement  and The  Ross  Roy
                                Shareholder Representative".

Conditions to the Merger ...    Consummation   of   the   Merger  is  contingent
                                upon   satisfaction   of   certain   conditions,
                                including without limitation, the SEC not having
                                objected to Omnicom's treatment of the Merger as
                                a pooling-of-interests  for accounting purposes,
                                the Registration  Statement having been declared
                                effective  by the SEC and not  subject to a stop
                                order, or threatened stop order, and the Omnicom
                                Common Stock being registered  thereunder having
                                been  approved for listing on the New York Stock
                                Exchange.  In the event that a condition  of the
                                Merger  is  not  satisfied,  the  Merger  may be
                                abandoned  even if prior  thereto the Merger has
                                been approved by the Ross Roy Shareholders.

Termination of the 
Merger Agreement; 
Termination  Fee ............   The Merger  Agreement is subject to  termination
                                at the  option of either  Omnicom or Ross Roy if
                                the Merger is not  consummated  by December  29,
                                1995, and prior to such time upon the occurrence
                                of certain  events.  If the Merger  Agreement is
                                terminated  by  either  Omnicom  or Ross  Roy in
                                certain   circumstances   as   a  result  of  an

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                                       9
<PAGE>
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                                alternative  acquisition  proposal  for Ross Roy
                                which is not  rejected  by the Ross Roy Board of
                                Directors, Ross Roy is required to pay Omnicom a
                                termination  fee of $1,000,000.  See "The Merger
                                Agreement    and    the    Merger--The    Merger
                                Agreement--Termination."

                              Other Considerations

Recommendation of the
Ross Roy Board of Directors ..  The Board of  Directors of Ross Roy has approved
                                the  Merger   Agreement  and  the   transactions
                                contemplated thereby and recommends its approval
                                by the Ross Roy Shareholders.

Interests of Certain 
Persons in the Merger ........  For  a  description  of  certain   interests  of
                                certain directors and executive officers of Ross
                                Roy in the Merger  that are in  addition  to the
                                interests  of Ross Roy  Shareholders  generally,
                                see    "The    Merger    Agreement    and    the
                                Merger--Interests  of Ross Roy's  Management  in
                                the Merger".

Certain Income Tax  
Consequences ................   The  Merger  is   intended  to  be  a  tax  free
                                reorganization  within the meaning of the United
                                States Internal Revenue Code of 1986, as amended
                                (the   "Code").   In   general,   the  Ross  Roy
                                Shareholders  will not recognize gain or loss as
                                a result of the  exchange  of shares of Ross Roy
                                Common Stock for shares of Omnicom  Common Stock
                                pursuant to the Merger.  However, the receipt of
                                cash in lieu of fractional  shares may give rise
                                to taxable income.  The Former Eligible Employee
                                Holder  will  recognize  a gain to the extent of
                                the  fair  market  value of the  Omnicom  Common
                                Stock  received as a result of the  Merger.  The
                                fair market  value of the Omnicom  Common  Stock
                                received in payment of the EPUs will be included
                                in gross  income of the EPU  Holder  as  taxable
                                compensation.   With   respect   to   Ross   Roy
                                Shareholders  who  are  Canadian  residents,   a
                                portion of the gain  attributable to the Omnicom
                                Common Stock  received in exchange for shares of
                                Ross Roy Common  Stock will be included in gross
                                income of such Canadian  Ross Roy  Shareholders.
                                See "The Merger Agreement and the  Merger--Other
                                Considerations--Certain        Income        Tax
                                Consequences".   Ross  Roy  Shareholders  should
                                consult  their tax  advisors  regarding  the tax
                                consequences  of the  Merger  to them  in  their
                                particular circumstances.

Accounting Treatment .......    The Merger will be accounted for by Omnicom as a
                                pooling-of-interests   for  financial  reporting
                                purposes in accordance  with generally  accepted
                                accounting principles. See "The Merger Agreement
                                and the Merger--Other Considerations--Accounting
                                Treatment".

Regulatory Approvals ........   Omnicom and Ross Roy each filed notification and
                                report   forms   under   the   Hart-Scott-Rodino
                                Antitrust  Improvements  Act of 1976, as amended
                                (the  "Hart-Scott-Rodino  Act") with the Federal
                                Trade  Commission  (the "FTC") and the Antitrust
                                Division   of  the   Justice   Department   (the
                                "Antitrust  Division") on _________,  1995,  and
                                each  was   advised   that   there   was   early
                                termination of the applicable  waiting period on
                                _____________,  1995. See "The Merger  Agreement
                                and the Merger--Other Considerations--Regulatory
                                Approvals".

Resales of Omnicom  
Common Stock ..............     Shares of Omnicom  Common Stock received by Ross
                                Roy  Shareholders as a result of the Merger will
                                be freely  transferable,  except that resales of
                                Omnicom  Common  Stock by Ross Roy  Shareholders
                                who are deemed to be "affiliates"  (as such term
                                is   understood   under   the   Securities  Act)

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                                       10
<PAGE>
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                                of Ross Roy prior to the  Merger  may be subject
                                to  certain   restrictions.   See  "The   Merger
                                Agreement       and      the       Merger--Other
                                Considerations--Resales    of   Omnicom   Common
                                Stock".

No Dissenters' Rights ......    Holders  of  Ross  Roy  Common   Stock  are  not
                                entitled to  dissenters'  rights under  Michigan
                                law in  connection  with  the  Merger.  See "The
                                Merger    Agreement   and   the    Merger--Other
                                Considerations--No Dissenters' Rights".


                            The Escrow Agreement and
                    The Ross Roy Shareholder Representative

The Escrow Agreement .......    As described above under "Description of Certain
                                Terms     of     the     Merger--Indemnification
                                Obligations",     indemnification    obligations
                                arising  out of the  Merger  Agreement  will  be
                                satisfied  from shares of Omnicom  Common  Stock
                                placed into the General and Special Escrow Funds
                                established  under  the  Escrow  Agreement.  The
                                General  Escrow Fund shall  consist of shares of
                                Omnicom  Common  Stock  having a Market Value of
                                $2,525,000;   the  Special   Escrow  Fund  shall
                                consist of shares of Omnicom Common Stock having
                                a Market Value of $1,300,000.

                                Each  of the  Ross  Roy  Shareholders,  the  EPU
                                Holder and the Former Eligible  Employee Holders
                                shall be  depositing  his pro rata  share of the
                                General  Escrow  Fund  or  Special  Escrow  Fund
                                determined by multiplying  the aggregate  number
                                of shares of Omnicom Common Stock required to be
                                deposited  into such  Escrow Fund by a fraction,
                                the  numerator  of which is the number of shares
                                of  Omnicom   Common  Stock   issuable  to  such
                                individual in the Merger and the  denominator of
                                which is the total  number of shares of  Omnicom
                                Common Stock  issuable in the Merger to all such
                                individuals required to provide indemnification,
                                rounded up to the  nearest  whole  share.  Based
                                upon  the  assumptions  set  forth  above  under
                                "Conversion  of Ross Roy Common  Stock",  of the
                                $118.21  Conversion  Price payable in respect of
                                each  share of Ross Roy  Common  Stock,  Omnicom
                                Common Stock having a Market Value of $___ would
                                be  deposited  in the  General  Escrow  Fund and
                                Omnicom  Common  Stock  having a Market Value of
                                $___ would be  deposited  in the Special  Escrow
                                Fund.

                                Since the amounts  held in such Escrow Funds are
                                subject  to  claims  in  respect  of  contingent
                                liabilities,  there  can  be no  assurance  that
                                amounts held therein will in fact be distributed
                                to the Ross Roy Shareholders, the EPU Holder and
                                the Former Eligible Employee Holders.

                                For  purposes of  satisfying  any  claims,  each
                                share  of  Omnicom  Common  Stock  deposited  in
                                either  Escrow Fund will be valued at the Market
                                Value,  regardless of actual fluctuations in the
                                market  value of the Omnicom  Common Stock after
                                the Closing Date.

                                See  "The  Escrow  Agreement  and the  Ross  Roy
                                Shareholder      Representative--The      Escrow
                                Agreement".

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                                       11
<PAGE>
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Appointment of the
Ross Roy Shareholder
Representative ............     It is a  condition  to Closing  under the Merger
                                Agreement that the Ross Roy Shareholders appoint
                                a  representative  (the  "Ross  Roy  Shareholder
                                Representative")  to  act  as  their  collective
                                agent in connection  with the Escrow  Agreement,
                                including one or more  alternate  individuals to
                                act as the Ross Roy  Shareholder  Representative
                                in the event that the designated  Representative
                                shall have died,  resigned,  or otherwise become
                                incapable or unwilling to act as Representative.

                                The Ross Roy  Shareholder  Representative  shall
                                also act as the  agent for the  Former  Eligible
                                Employee  Holders  and the EPU  Holder;  the EPU
                                Holder  has  delivered  to Ross Roy his  written
                                agreement to such effect.

                                Appointment   of  the   Ross   Roy   Shareholder
                                Representative   shall   include  the   specific
                                authorization  for  such  Representative  to (i)
                                execute and deliver the Escrow Agreement and any
                                documents   incident   or   ancillary   thereto,
                                including  without  limitation  any  amendments,
                                cancellations,  extensions or waivers in respect
                                thereof; (ii) respond to and make determinations
                                in  respect  of the  assertion  of any  and  all
                                claims for  indemnification  by Omnicom,  and to
                                assert   claims   on  behalf  of  the  Ross  Roy
                                Shareholders,  the EPU  Holder  and  the  Former
                                Eligible Employee Holders, pursuant to the terms
                                of the  Escrow  Agreement  and the  terms of the
                                Merger  Agreement   pertaining  thereto;   (iii)
                                execute and deliver any stock  powers  which may
                                be  required  to be  executed  by any  Ross  Roy
                                Shareholder,   the  EPU  Holder  or  any  Former
                                Eligible  Employee Holder in order to permit the
                                delivery  to  Omnicom  of any  shares of Omnicom
                                Common  Stock to be  delivered to it pursuant to
                                the  Escrow  Agreement;  and (iv)  take all such
                                other  actions as may be  necessary or desirable
                                to carry out his  responsibilities as collective
                                agent  of the  Ross  Roy  Shareholders,  the EPU
                                Holder and Former Eligible  Employee  Holders in
                                respect of the Escrow  Agreement.  In  addition,
                                the terms of the  appointment  shall be that the
                                Ross Roy Shareholder Representative shall not be
                                responsible to any Ross Roy  Shareholder for any
                                loss or damage any such Ross Roy Shareholder may
                                suffer  by  reason  of  the  performance  of his
                                duties,  other than loss or damage  arising from
                                willful violation of the law or gross negligence
                                in the performance of his duties as the Ross Roy
                                Shareholder    Representative.    Finally,   the
                                appointment  shall also  include  the consent of
                                the Ross Roy Shareholders to the procedure to be
                                followed   in  the  event   that  the  Ross  Roy
                                Shareholder  Representative  and  any  alternate
                                shall  be  unable  or   unwilling  to  serve  or
                                continue to serve as such.

                                The proposal before the Ross Roy Shareholders is
                                that Chris A.  Lawson be  appointed  as Ross Roy
                                Shareholder Representative, with Richard C. Ward
                                appointed   as   alternate.    See   "Ross   Roy
                                Shareholder  Representative--Appointment  of the
                                Ross Roy Shareholder Representative."

Recommendation of 
the Ross Roy Board
of Directors ...............    The Board of  Directors  of Ross Roy  recommends
                                that  the  Ross  Roy  Shareholders  approve  the
                                Escrow Agreement and the appointment of Chris A.
                                Lawson    as   the    Ross    Roy    Shareholder
                                Representative,   and   Richard   C.   Ward   as
                                alternate.
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                                       12
<PAGE>
                           COMPARATIVE PER SHARE DATA

     Set forth below are  unaudited  income  from  continuing  operations,  cash
dividends  declared and book value per common share data of Omnicom and Ross Roy
on both historical and pro forma combined bases.  Pro forma combined income from
continuing  operations  per share is calculated  under the  pooling-of-interests
accounting method and assumes that the Merger had occurred  immediately prior to
the period being reported  upon. Pro forma combined cash dividends  declared per
share reflects Omnicom cash dividends declared in the periods indicated. The pro
forma combined data has been calculated based upon the material assumptions that
the Conversion  Price will be $118.21 per share of Ross Roy Common Stock and the
Market Value of the Omnicom Common Stock will be $58.875.  The  information  set
forth  below  should be read in  conjunction  with the  respective  audited  and
unaudited  financial  statements  of Omnicom  incorporated  by reference in this
Prospectus/Information   Statement   and  of   Ross   Roy   included   in   this
Prospectus/Information Statement.

                                                                        As of  
                                                       As of        December 31,
                                                  March 31, 1995        1994
                                                  --------------   -------------
Book Value per Share:
  Omnicom ......................................     $ 15.86          $ 14.96
  Ross Roy .....................................     $  2.38          $  7.97
  Ross Roy Formula Value (A) ...................        --            $ 34.62
  Pro forma ....................................     $ 15.51          $ 14.67

<TABLE>
<CAPTION>
                                                                                   Year Ended December 31,
                                              Three Months ended             --------------------------------
                                                 March 31, 1995               1992          1993          1994
                                               -----------------              ----          ----          ----
<S>                                                  <C>                    <C>             <C>         <C>    
Cash Dividends Declared
   per Share:
    Omnicom .................................        $ 0.31                 $ 1.21          $1.24       $  1.24
    Ross Roy                                           --                     --             --            -- 
    Pro forma ...............................        $ 0.31                 $ 1.21          $1.24       $  1.24

Net Income (loss) per Share:
    Omnicom:
      Primary ...............................        $ 0.68                $  2.31          $2.79       $  3.15
      Fully diluted .........................        $ 0.68                $  2.20          $2.62       $  3.07

    Ross Roy:
      Primary ...............................        $ 5.09                ($13.06)         $9.23        $11.98
      Fully diluted .........................        $ 5.09                ($13.06)         $9.23        $11.71

    Pro forma:
      Primary ...............................        $ 0.71                 $ 2.00          $2.86        $ 3.15
      Fully diluted .........................        $ 0.70                 $ 1.96          $2.68        $ 3.07
</TABLE>
- --------------
(A)  Represents  the formula book value price as  calculated  under the Ross Roy
     Articles.  The  formula is based upon  actual  book value as  adjusted  for
     certain  items  determined  by the Ross Roy Board of Directors and the fair
     value of certain investments.


                                       13
<PAGE>

                               MARKET PRICE DATA

     There is no public  market  for Ross Roy Common  Stock.  Ross Roy has never
declared or paid any cash  dividends on any shares of Ross Roy Common Stock.  In
the event that the Merger is not  consummated,  it is not expected that any cash
dividends  would  be  paid  on any  shares  of  Ross  Roy  Common  Stock  in the
foreseeable future.

     Omnicom Common Stock is listed on the NYSE. The table below sets forth, for
the  calendar  quarters  indicated,  the  reported  high and low sale  prices of
Omnicom Common Stock as reported on the NYSE Composite  Tape, in each case based
on published financial sources,  and the dividends paid per share on the Omnicom
Common Stock for such periods.


                                                    Omnicom Common Stock
                                             -----------------------------------
                                             High           Low        Dividends
                                             ----           ---        ---------
1993
  First Quarter ....................        47 1/2         38 3/8         .310
  Second Quarter ...................        47 1/4         38 1/4         .310
  Third Quarter ....................        46 1/4         37             .310
  Fourth Quarter ...................        46 1/2         41 1/2         .310

1994
  First Quarter .....................       49 7/8         43 3/4         .310
  Second Quarter ....................       49 1/2         44 7/8         .310
  Third Quarter .....................       51 1/2         48             .310
  Fourth Quarter ....................       53 3/4         49             .310

1995
  First Quarter .....................       56 7/8         50             .310
  Second Quarter (through _____, 1995)

     On June 14,  1995,  the last full  trading day prior to the  execution  and
delivery of the Merger  Agreement,  the closing price of Omnicom Common Stock on
the NYSE Composite Tape was $58.875 per share.

     On [ ], 1995,  the most recent  practicable  date prior to the  printing of
this Prospectus/Information Statement, the closing price of Omnicom Common Stock
on the NYSE Composite Tape was $[ _____] per share.



                                       14
<PAGE>
                              THE SPECIAL MEETING

                    Date, Time and Place of Special Meeting

     This Prospectus/Information  Statement is being furnished to the holders of
Class A Common  Stock  and the  holders  of Class B Common  Stock of Ross Roy in
connection  with the  Special  Meeting  of Ross Roy  Shareholders  to be held on
________  1995 at ____ A.M.  (local  time),  at 100  Bloomfield  Hills  Parkway,
Bloomfield Hills, Michigan 48304.

     This Prospectus/Information Statement is first being mailed to the Ross Roy
Shareholders on or about ________, 1995.

                Business to be Transacted at the Special Meeting

     At the Special Meeting,  Ross Roy Shareholders  will consider and vote upon
the following matters (collectively the "Ross Roy Vote Matters"):

          1. A proposal to approve  the Merger  Agreement  and the  transactions
     contemplated  thereby,  including without  limitation the Merger of OmniSub
     with and into  Ross Roy  pursuant  to the  Merger  Agreement  such that the
     surviving corporation of such Merger shall be a wholly-owned  subsidiary of
     Omnicom,  and each share of Ross Roy Common Stock shall be  converted  into
     the  right to  receive  shares  of  Omnicom  Common  Stock,  as more  fully
     described herein;

          2. A proposal to approve  the Escrow  Agreement  and the  transactions
     comtemplated   thereby,  and  to  appoint  Chris  A.  Lawson  as  Ross  Roy
     Shareholder  Representative  and  Richard C. Ward as  alternate,  to act on
     behalf of the Ross Roy  Shareholders  and certain others under the terms of
     the Escrow Agreement; and

          3. Such other  proposals  as may  properly  come  before  the  Special
     Meeting or any adjournment thereof.

     None of the proposals  shall become  effective  unless all of the proposals
are adopted by the requisite vote of the Ross Roy Shareholders.

                           Record Date; Voting Rights

     Only  shareholders  of  record  of Class A Common  Stock and Class B Common
Stock as at the close of business on _________, 1995 will be entitled to vote at
the Special  Meeting.  On that  Record  Date there were  issued and  outstanding
______ shares of Class A Common Stock and 54,800 shares of Class B Common Stock.
Each share of each class of Ross Roy Common  Stock is  entitled  to one vote per
share on the Ross Roy Vote Matters at the Special  Meeting or any adjournment or
postponement thereof.

                              Voting Requirements

     The presence of the holders of a majority of the voting power of all shares
of Class A Common Stock and Class B Common Stock  entitled to vote on the Record
Date is necessary to constitute a quorum for the  transaction of business at the
Special Meeting.

     Under the Michigan Business  Corporation Act (the "MBCA"),  the affirmative
vote of the  holders of a majority of the  outstanding  shares of Class A Common
Stock,  voting as a class,  and a majority of the outstanding  shares of Class B
Common  Stock,  voting as a class,  will be  required  to  approve  the  Merger.
Abstentions have the effect of negative votes.

                              Management Ownership

     As of the Record Date,  directors and  executive  officers of Ross Roy as a
group owned ______  shares of Class A Common Stock and 54,800  shares of Class B
Common  Stock,  representing  ___% and 100%,  respectively,  of the  outstanding
shares of these  classes of Ross Roy Common  Stock.  Each of these  persons  has
expressed an intention to vote in favor of the transactions contemplated herein.
Accordingly,  the Ross Roy Vote Matters can be approved by the affirmative  vote
of such  persons  even if all  other  Ross Roy  Shareholders  vote  against  the
proposals.

     No proxies are being solicited in connection with the Special Meeting.


                                       15
<PAGE>

                      THE MERGER AGREEMENT AND THE MERGER

     (The  information  contained in this  Registration  Statement of which this
Prospectus/Information  Statement  forms a part is  qualified in its entirety by
reference to the  complete  text of the Merger  Agreement,  which is filed as an
Exhibit thereto and is incorporated herein by reference.)

   Background of and Ross Roy's Reasons for the Merger; Opinion of Financial
           Advisor Recommendation of the Ross Roy Board of Directors

Overview

     After  the  Effective  Time  of the  Merger,  Ross  Roy,  as the  surviving
corporation in the Merger, will continue as a separate subsidiary of Omnicom and
conduct its  business as part of the  Diversified  Agency  Services  Division of
Omnicom, under Ross Roy's current management. The Merger Agreement provides that
except with respect to the position of  Secretary,  which shall be held by Barry
J. Wagner,  General Counsel to Omnicom,  the officers of Ross Roy shall continue
as the officers of the surviving  corporation,  each to hold office,  subject to
the  applicable  provisions  of  the  surviving  corporation's  By-laws,  at the
pleasure of the Board of Directors of the surviving  corporation,  and until his
or her successor shall be elected and duly qualified.  See "The Merger Agreement
and the  Merger --  Interests  of Ross Roy's  Management  in the  Merger"  for a
description of proposed employment and  non-competition  agreements between Ross
Roy and certain executive officers and directors of Ross Roy, to be entered into
on the Closing Date.

     The  initial  Board of  Directors  of Ross Roy  immediately  following  the
Effective Time of the Merger will be composed of five  directors:  John D. Wren,
Chief Executive Officer of the Diversified  Agency Services Division of Omnicom;
James A. Cannon,  Vice Chairman and Chief  Financial  Officer of BBDO  Worldwide
Inc.; J. Thomas Clark,  Vice  Chairman of BBDO  Worldwide  Inc. and Chairman and
Chief  Executive  Officer of BBDO North  America  Inc.;  Peter Mills,  Chairman,
President  and  Chief  Executive  Officer  of Ross  Roy;  and  Chris A.  Lawson,
Executive Vice President and Chief Financial Officer of Ross Roy.

     The  terms of the  Merger  Agreement,  including  the  terms of the  Escrow
Agreement,  are the result of arm's-length  negotiations between representatives
of Omnicom and representatives of Ross Roy.

Background of the Merger

     In early 1992, Ross Roy received an unsolicited expression of interest from
BBDO  Worldwide  Inc.,  a  subsidiary  of  Omnicom  ("BBDO"),   to  explore  the
possibility of a merger transaction. Exploratory discussions were held from time
to time during the summer and fall of 1992 between senior management of BBDO and
Ross Roy. In early 1993,  the parties  agreed to terminate  further  discussions
concerning a merger transaction.

     Beginning  in late  summer  of 1994,  senior  management  of Ross Roy began
evaluating strategic alternatives to address several significant developments in
its business.  These  developments  included (i) a possible review of its agency
relationship with its then second largest client,  Kmart  Corporation,  (ii) the
known preference of its largest client, Chrysler Corporation, to consolidate its
advertising  account  into  fewer  agencies,  (iii)  the  need  to  enhance  its
international  capabilities to continue to provide  competitive  services to its
clients,  and (iv)  the  need to make  substantial  capital  investments  in its
business.  Included among the strategic  alternatives  being considered were the
strategic  alliance of Ross Roy with a larger  advertising agency as well as the
possible acquisition by Ross Roy of another advertising agency.

     To  assist  in the  evaluation  of such  strategic  alternatives,  Ross Roy
engaged McDonald & Company Securities,  Inc.  ("McDonald") in August 1994 as its
financial advisor.  Between August and October 1994,  McDonald met several times
with senior  management  and the  Executive  Committee  of the Ross Roy Board of
Directors  to  evaluate  strategic  alternatives  and to assess its  competitive
position  within the  advertising  industry.  As a result of these  discussions,
McDonald  prepared  a  Confidential  Descriptive  Memorandum  in  November  1994
describing  the  business  of Ross Roy and also  developed  a list of  potential
merger  partners  and a  list  of  potential  acquisition  candidates.  Informal
exploratory discussions were held with several of the potential merger partners,
three  of whom  (including  Omnicom)  expressed  interest  in  pursuing  further
discussions.

     In late  November  1994,  prior  to  providing  a copy of the  Confidential
Descriptive  Memorandum to the three potential merger partners,  Kmart announced
that it would  review  its  agency  relationship  with Ross Roy.  The  Executive
Committee of the Ross Roy Board of Directors  decided not to  participate in the
review,  the likely  consequence  of which would be the eventual  termination of


                                       16
<PAGE>

Ross Roy's client relationship with Kmart. As a result of the likely loss of the
Kmart  account,  Ross Roy believed  that further  efforts to explore a strategic
merger or other  business  combination  with another  agency would be negatively
affected.  Accordingly,  the Executive  Committee  suspended further discussions
with potential merger partners.  

     During December 1994,  several of the potential merger partners  (including
Omnicom)  indicated  to Ross Roy  that the  uncertainty  surrounding  the  Kmart
account  did  not  diminish  their  interest  in  proceeding  with   discussions
concerning  a strategic  combination  or merger with Ross Roy.  Accordingly,  in
January 1995, the Executive  Committee  decided to move forward with discussions
with the three  potential  merger  partners  and  proceeded  to  distribute  the
Confidential  Descriptive Memorandum.  From late January through March l995, the
potential merger partners conducted business, accounting and legal due diligence
investigations of Ross Roy.

     On March  16,  1995,  Ross Roy sent to each of the three  potential  merger
partners a detailed letter (i) setting forth the auction procedure by which Ross
Roy would  consider  proposals for the purchase of Ross Roy and (ii)  requesting
the submission of formal proposals  concerning such a purchase.  The letter also
contained  forms  of a  merger  agreement  for a cash  transaction  and a  stock
transaction  which Ross Roy would  consider as a basis for  completing  a merger
transaction.

     Each of the  potential  merger  partners  responded by April 3, 1995 with a
written  proposal  letter  setting forth in broad  conceptual  terms the general
structure for an  acquisition of Ross Roy. The proposals  varied  significantly.
McDonald  continued  discussions  with each of the potential  merger partners to
clarify and refine their respective proposals.

     On April 10, 1995, Ross Roy received a draft merger agreement from Omnicom.
During the remainder of April and through the latter part of May 1995,  Ross Roy
and Omnicom  conducted  detailed  negotiations as to price,  terms and form of a
transaction.  Discussions  continued  during this time period with the other two
potential  merger  partners  as  to  the  structure  and  feasibility  of  their
respective proposals for a merger transaction.

     On May 9, 1995,  Peter Mills,  the Chairman,  President and Chief Executive
Officer  of Ross Roy,  was  informed  by one of the other two  potential  merger
partners  that  it  was  withdrawing  its  proposal  for a  merger  transaction.
Discussions with the other potential  merger partner  continued during the first
three weeks of May 1995.

     During the period from April 3, 1995 to May 21, 1995, the Ross Roy Board of
Directors  met on April 13,  April 26,  and May 16, to review  the status of the
various proposals. At each of these meetings the Board of Directors met with its
financial advisors and legal counsel to review and discuss the terms, conditions
and negotiating positions with respect to each proposal.

     The Ross Roy  Board of  Directors  met on May 21,  1995  with its legal and
financial  advisors  to review  Omnicom's  proposal  and the status of the other
proposal. At the meeting, copies of the proposed Merger Agreement and the Escrow
Agreement were made available to the Board.  Following  extensive  discussion of
the terms of the proposed  Merger and related  transactions  and of operational,
legal,  and regulatory  issues relating to Omnicom's  proposal,  a review of the
status of the other proposal, a presentation by McDonald regarding the financial
aspects of the Merger,  and receipt of the verbal  opinion of McDonald  that the
consideration to be received by the Ross Roy Shareholders pursuant to the Merger
Agreement  is fair  from a  financial  point of  view,  the  Board of  Directors
approved the Merger  Agreement and authorized its execution and delivery,  based
on, among other things,  the  considerations set forth below under "--Ross Roy's
Reasons for the Merger." At the same time,  the proposal of the other  remaining
potential merger partner was officially rejected. A press release announcing the
proposed  Merger was issued on May 22, 1995.  The Merger  Agreement was executed
and delivered by the parties on June 15, 1995.

Ross Roy's Reasons for the Merger

     The Board of Directors  has  determined  that the Merger  Agreement and the
Merger  are  advisable  and in the best  interests  of Ross Roy and the Ross Roy
Shareholders and has approved the Merger Agreement and Merger.

     In reaching  its  determination  that the Merger  Agreement  is in the best
interests  of Ross Roy and the Ross Roy  Shareholders,  the Board  considered  a
number of factors, including, without limitation, the following:


                                       17
<PAGE>

          (i) The Board's  assessment that Ross Roy could more fully realize its
     long range strategic  objectives  through  affiliation with a substantially
     larger  agency,  such as  Omnicom,  thereby  affording  Ross Roy  access to
     Omnicom's  financial  and  managerial   resources,   international  service
     facilities and access to new customers;

          (ii) Ross Roy's dependence on its principal client,  Chrysler, and the
     possibility of strengthening  the relationship with Chrysler by integrating
     the delivery of services by Ross Roy and Omnicom;

          (iii)  Ross Roy  Shareholders  receiving  dividend  paying  marketable
     securities  of Omnicom in exchange for their  illiquid  equity  interest in
     Ross Roy;

          (iv) the opinion of McDonald  (later  confirmed  in writing)  that the
     consideration to be received by the Ross Roy  Shareholders  pursuant to the
     Merger  Agreement is fair to such  shareholders  from a financial  point of
     view (see "--Opinion of Financial Advisor");

          (v) the  belief of the Ross Roy Board and  executive  management  that
     Omnicom's  proposal  was more  favorable  than any other  potential  merger
     proposal (see "--Background of the Merger");

          (vi) The terms of the Merger  Agreement  as  reviewed  by the Ross Roy
     Board with its legal and financial advisors (see "--The Merger Agreement");

          (vii)  information  relating to the  financial  condition,  results of
     operations,  capital  levels  and  prospects  of Ross  Roy  (see  "Selected
     Financial  Data of Ross  Roy"),  and  management's  best  estimates  of the
     prospects of Ross Roy (see "--Opinion of Financial Advisor");

          (viii)  the  current  and  prospective  environment  in which Ross Roy
     operates, including national and local economic conditions, the competitive
     environment for advertising generally;

          (ix)  information  relating to the tax  consequences of the Merger for
     Ross   Roy   and   for   the   Ross   Roy   Shareholders    (see   "--Other
     Considerations--Certain Income Tax Consequences");

     The foregoing  discussion of the information  and factors  discussed by the
Board of Directors is not meant to be exhaustive  but is believed to include all
material factors considered by the Ross Roy Board. The Board did not quantify or
attach any  particular  weight to the  various  factors  that it  considered  in
reaching its  determination  that the Merger is in the best interest of the Ross
Roy Shareholders.

Opinion of Financial Advisor

     McDonald  was  retained  by Ross Roy to render an  opinion  to its Board of
Directors as to the fairness, from a financial point of view, to Ross Roy of the
Conversion  Price to be paid by Omnicom.  On May 21, 1995 McDonald  delivered to
the Ross Roy Board of Directors an oral opinion (the "Opinion") (later confirmed
in  writing) to the effect  that,  as of that date and based upon and subject to
certain  matters stated therein,  the Conversion  Price to be received was fair,
from a financial point of view, to the Ross Roy Shareholders.

     In arriving at its opinion,  McDonald  reviewed the financial  terms of the
Merger and met with certain senior officers, directors and other representatives
and advisors of Ross Roy to discuss the  business,  operations  and prospects of
Ross Roy. In addition, McDonald performed a variety of financial and comparative
analyses, including (i) an EBIT multiple analysis in which McDonald calculated a
range of value for Ross Roy based upon a multiple of historical  earnings before
interest and taxes ("EBIT") in 1993,  1994 and projected  EBIT for 1995;  (ii) a
discounted  cash flow analysis in which McDonald  estimated the present value of
the future cash flows that Ross Roy could  produce  over a six-year  period from
1995 through 2000, if Ross Roy were to perform on a stand-alone  basis;  (iii) a
comparable  public  company  analysis in which  McDonald  reviewed  and compared
selected actual and estimated financial,  operating and stock market information
for Ross Roy in  comparison  with  various  companies  whose  stock is traded on
various stock  exchanges and whose business is similar to that of Ross Roy; (iv)
a stock  price and  trading  history in which  McDonald  reviewed  the daily and
weekly trading activity,  including price and volume statistics,  of Omnicom for
the  most  recent  four  years  since  January  1990;  and (v) a  review  of the
historical and projected results of Ross Roy.

     In rendering its Opinion,  McDonald assumed and relied, without independent
verification,  upon the accuracy and  completeness  of the  financial  and other
information  publicly  available or furnished  to or  otherwise  discussed  with
McDonald.  With respect to financial forecasts and other information provided to
or otherwise  discussed with McDonald,  McDonald assumed that such forecasts and


                                       18
<PAGE>

other  information  were  reasonably  prepared  on  bases  reflecting  the  best
currently  available  estimates  and  judgments of the  management  of Ross Roy.
McDonald did not express any opinion as to what the value of the Omnicom  Common
Stock will be when issued to Ross Roy Shareholders pursuant to the Merger or the
price at which the Omnicom Common stock will trade or otherwise be  transferable
subsequent  to the  Merger.  In  addition,  McDonald  did not make or  obtain an
independent evaluation or appraisal of the assets or liabilities  (contingent or
otherwise) of Ross Roy or Omnicom nor did McDonald make any physical  inspection
of the  properties  or assets of Ross Roy or Omnicom.  McDonald was not asked to
consider and its opinion  does not address the relative  merits of the Merger as
compared to any alternative business strategies that might exist for Ross Roy or
the effect of any other transaction in which Ross Roy might engage. In addition,
although McDonald evaluated the financial terms of the Merger,  McDonald was not
asked to and did not recommend the specific  consideration to be paid by Omnicom
in the Merger.  No other  limitations  were imposed by Ross Roy on McDonald with
respect  to the  investigations  made or  procedures  followed  by  McDonald  in
rendering its opinion.

     In arriving at its  opinion,  McDonald  did not  attribute  any  particular
weight to any analysis or factor  considered by it, but rather made  qualitative
judgments as to the significance  and relevance of each analysis and factor.  In
its  analyses,  McDonald  made  numerous  assumptions  with respect to Ross Roy,
industry  performance,   general  business,   economic,   market  and  financial
conditions and other  matters,  many of which are beyond the control of Ross Roy
and Omnicom.

     McDonald was retained  based on its  experience  as a financial  advisor in
connection with mergers and  acquisitions.  McDonald,  as part of its investment
banking  business,  is  customarily  engaged in the valuation of businesses  and
their  securities  in  connection  with  mergers  and  acquisitions,  negotiated
underwritings,  competitive  biddings,  secondary  distributions  or listed  and
unlisted securities, private placements and valuations for estate, corporate and
other purposes.

     McDonald  was  retained by Ross Roy in late  summer  1994 as its  financial
adviser to evaluate strategic  alternatives being considered by Ross Roy at that
time.  The terms of engagement of McDonald  included the rendering of a fairness
opinion if requested by Ross Roy. For its services as financial  advisor to Ross
Roy,  Ross Roy  agreed  to pay  McDonald  a fee  equal to .8% of the  amount  of
consideration  up to $50 million received in a transaction plus 2% of the amount
of consideration  between $50 million and $60 million received in a transaction.
In  addition,   Ross  Roy  agreed  to  reimburse   McDonald  for  it  reasonable
out-of-pocket  expenses,  not to exceed $15,000,  and an additional  $20,000 for
rendering a fairness  opinion.  Ross Roy has also agreed to  indemnify  and hold
McDonald,  its officers,  directors,  employees,  agents and controlling persons
harmless from and against all claims, liabilities,  losses, damages and expenses
that they incur  (including  reasonable fees of counsel)  related to, or arising
out of, its engagement.

     A copy  of the  McDonald  Opinion  has  been  filed  as an  Exhibit  to the
Registration Statement of which this Prospectus/Information  Statement is a part
and is incorporated herein by reference.

Recommendation of the Ross Roy Board of Directors

     For the reasons set forth above,  the Ross Roy Board of Directors  believes
that the Merger is fair to, and in the best  interests of, Ross Roy and the Ross
Roy  Shareholders  and recommends  that the Ross Roy  Shareholders  vote FOR the
approval of the Merger Agreement and the transactions contemplated thereby.

                        Omnicom's Reasons for the Merger

     Omnicom's  Board of  Directors  believes  that  the  Merger  represents  an
opportunity to strengthen the reach of its Diversified  Agency Services Division
through the  acquisition  of a full  service  marketing  communication  services
company with lines of business including training, direct response, advertising,
telemarketing, promotion and other related activities.

     The Omnicom  Board of Directors  believes  that the Merger will enhance its
relationship  with Chrysler,  Ross Roy's largest  client,  and a client which is
also serviced by BBDO, another Omnicom company.

     Omnicom has not retained an outside  party to evaluate the proposed  Merger
but has instead relied upon the knowledge of its  management in considering  the
financial aspects of the Merger.


                                       19
<PAGE>

      In reaching its  conclusion,  the Omnicom  Board of Directors  considered,
among other  things,  (i)  information  concerning  the  financial  performance,
condition,  business operations and prospects of Ross Roy; and (ii) the proposed
terms and  structure of the Merger.  It is  anticipated  that the Merger will be
non-dilutive to Omnicom's results of operations. Accordingly, Omnicom's Board of
Directors has  unanimously  approved the Merger  Agreement and the  transactions
contemplated thereby.

                Interests of Ross Roy's Management in the Merger

     (The following  describes  certain interests of the directors and executive
officers of Ross Roy in the Merger that are in addition to the interests of Ross
Roy Shareholders generally.)

Employment and Non-Competition Arrangements

     Pursuant  to the Merger  Agreement,  Ross Roy will  enter  into  employment
agreements  with each of the following key  executives who are also directors of
Ross Roy:  Timothy  G,  Copacia,  Paula A.  Eridon,  Chris A.  Lawson,  F. Peter
Middleton,  Peter R. Mills, Janet C. Muhleman, Calvin L. Parent, Richard C. Ward
and Gary I.  Wolfson.  In the  case of  Messrs.  Lawson,  Mills,  Middleton  and
Wolfson,  these employment  agreements will replace existing  agreements between
such  individuals  and Ross Roy. It is  anticipated  that,  except as  indicated
below,  the  new  employment  agreements  will  have  a term  commencing  on the
Effective Date and ending on the first anniversary date thereof, and provide for
annual salary  compensation and fringe benefits  substantially the same as those
such persons  were  receiving  immediately  prior to the Merger.  Such  persons,
together  with the  other  employees  of Ross  Roy,  will  also be  eligible  to
participate  in the Ross Roy  discretionary  bonus plan.  In respect of calendar
year 1994, Ross Roy paid discretionary bonuses of 22% of income before taxes, of
which 58% was paid to its executive  officers and  directors.  It is anticipated
that the aggregate bonuses payable under the Ross Roy  discretionary  bonus plan
for 1995 as a percentage of income before taxes will be comparable to 1994.  The
allocation  of  such  bonuses  to  executive  officers  and  directors  is  also
anticipated to be comparable to 1994.

     The employment agreements for Messrs.  Middleton and Wolfson will terminate
on May 23, 1997,  and October 31, 1996,  respectively,  being the dates on which
their former employment  agreements were scheduled to terminate.  The employment
agreement for Mr. Lawson will terminate on the second  anniversary  date thereof
and  provides  for a  severance  payment  (i) in the  event  his  employment  is
terminated by Ross Roy without cause or by Mr. Lawson for good reason during the
initial  term  thereof  (a  "wrongful  termination"),  or (ii) in the event such
agreement is not renewed beyond the initial term; such severance payment is less
than the  severance  payment  that would have been  payable  under Mr.  Lawson's
current agreement in the event of a wrongful  termination  following a change in
control of Ross Roy. The  employment  agreement for Mr. Mills will  terminate on
the second  anniversary  date  thereof and  provides  that his current  deferred
compensation arrangement will remain in effect.

     In  addition,  pursuant to the terms of the Merger  Agreement,  each of the
executives who is entering into an employment  agreement as described above will
also enter into a non-competition agreement with Omnicom and Ross Roy which will
have a term  commencing on the Closing Date and ending on the later of the third
anniversary  of the  Closing  Date  and  two  years  after  the  termination  of
employment.  There is no additional  consideration being paid in connection with
these non-competition agreements.

Other Interests

     Mr. Lawson is the EPU Holder under the EPU Plan and will receive  shares of
Omnicom Common Stock in payment of such EPUs as a result of the Merger. See "The
Merger Agreement and The Merger--Payment of Obligations Under EPU Plan".

     Messrs.  Lawson  and  Ward  are  also  nominees  to  serve  as the Ross Roy
Shareholder    Representative   and   the   alternate   Ross   Roy   Shareholder
Representative,  respectively.  See  "The  Escrow  Agreement  and the  Ross  Roy
Shareholder Representative".
     
     Messrs.  Lawson and Mills are to continue to serve as directors of Ross Roy
following the Effective  Time of the Merger.  See "The Merger  Agreement and the
Merger--Background  of and  Ross  Roy's  Reasons  for  the  Merger;  Opinion  of
Financial Advisor; Recommendation of the Ross Roy Board of Directors--Overview".


                                       20
<PAGE>

                  Procedure for Distributing Shares of Omnicom
                     Common Stock to Ross Roy Shareholders

     A transmittal form will be furnished to the Ross Roy Shareholders  prior to
the  Effective  Time of the Merger for use in  transmitting  their  certificates
evidencing their shares of Ross Roy Common Stock to Omnicom to exchange them for
certificates evidencing the Omnicom Common Stock to which they are entitled as a
result  of the  Merger.  The  instructions  on the form of  transmittal  must be
complied  with by each  surrendering  shareholder.  Pursuant to the  transmittal
form,  each Ross Roy  Shareholder  will also grant to  Omnicom a first  priority
security interest in his respective shares of Omnicom Common Stock which will be
held in accordance with the provisions of the Escrow Agreement  described below.
See "The Escrow Agreement and the Ross Roy Shareholder Representative".

     On or as  soon as  practicable  after  the  Closing  Date,  each  Ross  Roy
Shareholder   shall  receive  by  first-class   mail  in  accordance   with  the
instructions of such Ross Roy Shareholder as set forth in his transmittal  form,
a certificate or certificates representing the next lower number of whole shares
of  Omnicom  Common  Stock  into  which  the  shares  of Ross Roy  Common  Stock
represented  by the  certificate  or  certificates  of Ross Roy Common  Stock so
surrendered  shall have been converted  pursuant to the Merger and, in addition,
cash in lieu of a fractional share that such Ross Roy Shareholder is entitled to
receive,  subject  to the  provisions  of the  Escrow  Agreement.  Each Ross Roy
Shareholder  will  also  receive a receipt  indicating  the  number of shares of
Omnicom  Common  Stock  being held in the  General  Escrow  Fund and the Special
Escrow Fund in the name of such Ross Roy Shareholder.

     Dividends  and other  distributions  which may be  payable  by  Omnicom  to
holders of record of Omnicom  Common  Stock as of a date on or after the Closing
Date and which are paid prior to the  delivery of Omnicom  Common  Stock to Ross
Roy  Shareholders  entitled  thereto,  will  be paid to  such  former  Ross  Roy
Shareholders  at the same time the Omnicom  Common Stock is  transferred to them
upon  surrender  of  certificates  representing  their shares of Ross Roy Common
Stock. Such former  shareholders will not be entitled to interest or earnings on
such dividends or other distributions pending receipt.

                              The Merger Agreement
The Merger

     Under the  terms of the  Merger  Agreement,  at the  Effective  Time of the
Merger,  OmniSub will be merged with and into Ross Roy, whose separate corporate
existence will continue as a wholly-owned subsidiary of Omnicom.

Determination of Conversion Price

     Under  the  terms of the  Merger  Agreement,  at the  Effective  Time  each
outstanding  share of Ross Roy Common  Stock will be  converted  into  shares of
Omnicom Common Stock,  based upon the Conversion  Price  described below and the
average of the closing  prices per share of Omnicom  Common Stock as reported on
the New York Stock  Exchange  for the 20  consecutive  trading  days  ending two
business days immediately  prior to the Effective Time. No fractional  shares of
Omnicom Common Stock will be issued but in lieu thereof each holder of shares of
Ross Roy Common Stock who otherwise  would have been entitled to a fraction of a
share of Omnicom  Common Stock will be paid the cash value of such fraction of a
share based upon the Market Value thereof.

     The  "Conversion  Price"  will  result in an  amount  per share of Ross Roy
Common  Stock  equal to (x) the  total of (i)  $52,000,000,  plus (ii) the total
repurchase price originally paid to Former Eligible Employee Holders, plus (iii)
the  product  of  $216,200  (being  the base value at the grant date of the EPU)
multiplied  by the "tax gross up factor"  described  in "Payment of  Obligations
Under EPU Plan" below (which is currently  1.1921),  divided by (y) the total of
(iv) the number of shares of Ross Roy Common Stock  outstanding at the Effective
Time of the Merger, plus (v) the total number of shares of Ross Roy Common Stock
repurchased  from Former  Eligible  Employee  Holders,  plus (vi) the product of
10,000  (being the number of  outstanding  EPUs)  multiplied by the tax gross-up
factor.

     Based upon the  assumptions  set forth  under  "Summary --  Description  of
Certain Terms of the Merger  Agreement -- Conversion of Ross Roy Common  Stock",
subject to the  obligation  to deposit  shares of Omnicom  Common Stock into the
Escrow  Funds  pursuant to the Escrow  Agreement,  each share of Ross Roy Common


                                       21
<PAGE>

Stock  would be  converted  into the right to receive  shares of Omnicom  Common
Stock having a Market Value of $118.21.  Based upon the assumed  Market Value of
$58.875, this would equate to 2.0078 shares of Omnicom Common Stock.

Payment of Obligations Under EPU Plan

     Ross Roy has outstanding 10,000 EPUs under its EPU Plan. Under the terms of
the EPU Plan,  the EPU  Holder  has the right to receive in respect of each EPU,
upon a change in control of Ross Roy, a payment in an amount equal to the excess
of the per share  consideration  received  by the Ross Roy  Shareholders  in the
relevant  transaction  over the  base  price of such  EPU,  multiplied  by a tax
gross-up  factor.  The tax gross-up factor equals the result of dividing the net
amount that would be received after applying the maximum  capital gains tax rate
(currently  28%) by the amount that would be received after applying the maximum
ordinary income tax rate (currently 39.6%),  using the rates in effect as of the
date of payment of the EPUs.  Currently,  the tax gross-up factor is 1.1921.  At
the Effective  Time of the Merger,  Omnicom will satisfy the  obligation of Ross
Roy to the EPU Holder in whole shares of Omnicom  Common  Stock,  subject to the
same  terms  and  conditions  as if he were a Ross  Roy  Shareholder,  including
without  limitation the  indemnification  obligations  described  below. The EPU
Holder  has   delivered  to  Omnicom  his  written   agreement  to  accept  such
consideration  subject  to  such  obligations,   and  to  accept  the  Ross  Roy
Shareholder  Representative  as  appointed by the Ross Roy  Shareholders  at the
Special Meeting as his agent on the same basis as the Ross Roy Shareholders.

     Based upon the  assumptions  set forth  under  "Summary --  Description  of
Certain Terms of the Merger  Agreement -- Conversion of Ross Roy Common  Stock",
subject to the  obligation  to deposit  shares of Omnicom  Common Stock into the
Escrow Funds pursuant to the Escrow Agreement,  the EPU Holder would be entitled
to receive  shares of Omnicom  Common Stock having an aggregate  Market Value of
$____. Based upon the assumed Market Value of $58.875, this would equate to ____
shares of Omnicom Common Stock in payment of his EPU.

Payment of Obligations to Former Eligible Employee Holders

     There is currently one Former  Eligible  Employee Holder from whom Ross Roy
repurchased  2,400  shares of Ross Roy  Common  Stock  (the  "Current  Holder").
Pursuant to the Ross Roy  Articles,  such  Former  Eligible  Employee  Holder is
entitled to receive his pro rata share of the consideration received by the Ross
Roy  Shareholders in the Merger,  as reduced by the amounts  theretofore paid by
Ross Roy to him in respect of his repurchased  shares.  At the Effective Time of
the  Merger,  Omnicom  will  satisfy the  obligation  of Ross Roy to the Current
Holder,  and to any other  individual  who  becomes a Former  Eligible  Employee
Holder  prior to the  Effective  Time of the Merger,  in whole shares of Omnicom
Common Stock,  subject to the same terms and conditions as if such person were a
Ross  Roy  Shareholder,   including  without   limitation  the   indemnification
obligations described below.

     Based upon the  assumptions  set forth  under  "Summary --  Description  of
Certain Terms of the Merger  Agreement -- Conversion of Ross Roy Common  Stock",
subject to the  obligation  to deposit  shares of Omnicom  Common Stock into the
Escrow  Funds  pursuant to the Escrow  Agreement,  the Current  Holder  would be
entitled to receive  shares of Omnicom  Common Stock having an aggregate  Market
Value of $_____.  Based upon the assumed  Market  Value of  $58.875,  this would
equate to ____ shares of Omnicom Common Stock.

Indemnification Obligations

     Under the Merger Agreement,  the Ross Roy  Shareholders,  pro-rata together
with the EPU Holder and the Former Eligible  Employee  Holders,  are required to
indemnify,  defend and hold harmless Omnicom and OmniSub,  and their affiliates,
directors,  officers and employees  for (i)  liabilities,  obligations,  losses,
penalties, claims, actions, judgments or causes of action, assessments, costs or
expenses  (including,   without  limitation,   reasonable  attorneys'  fees  and
disbursements)  ("losses")  as a  consequence  of  or  in  connection  with  any
inaccuracy  or breach of any  representation,  warranty  or covenant of Ross Roy
contained in or made  pursuant to the Merger  Agreement,  but only to the extent
that such  losses  exceed  $250,000  and (ii) the  payment  of any  judgment  or
settlement  in respect of any matter set forth on a  specified  schedule  to the
Merger Agreement in excess of the aggregate  reserves  recorded for such matters
in the  financial  records of Ross Roy, all of which  matters are  contingencies
whose  outcomes  could not reasonably be determined at the time of the execution
of the Merger Agreement.


                                       22
<PAGE>

     To satisfy these  indemnification  obligations,  the Ross Roy Shareholders,
together  on a pro  rata  basis  with the EPU  Holder  and the  Former  Eligible
Employee  Holders,  will deposit shares of Omnicom Common Stock into the General
Escrow Fund and the Special Escrow Fund under the Escrow Agreement.  The General
Escrow Fund will  contain  shares of Omnicom  Common  Stock  having an aggregate
Market   Value   equal  to   $2,525,000,   and  will  be  used  to  satisfy  the
indemnification   obligations  described  under  clause  (i)  of  the  preceding
paragraph.  The Special  Escrow Fund will contain shares of Omnicom Common Stock
having  an  aggregate  Market  Value  equal to  $1,300,000,  and will be used to
satisfy  the  indemnification  obligations  described  under  clause (ii) of the
preceding paragraph. Indemnification obligations arising under clause (i) may be
satisfied only from the General Escrow Fund, and those arising under clause (ii)
may be satisfied only from the Special Escrow Fund.

     The  indemnification  obligations  of the  Ross Roy  Shareholders,  the EPU
Holder and the Former Eligible Employee Holders will be limited to and satisfied
solely from,  the General  Escrow Fund and Special  Escrow Fund under the Escrow
Agreement  (such that neither  Omnicom nor any of its  affiliates  will have any
recourse  for the  payment of any  losses or other  damages  arising  out of the
transactions  contemplated by the Merger Agreement against any such persons, nor
shall any of such persons be personally  liable for any such losses or damages).
Indemnification  obligations to be satisfied out of the General Escrow Fund will
terminate on the earlier of the first  independent audit report, if any, of Ross
Roy following  the  Effective  Time of the Merger or one year from the Effective
Time  (except  that  claims  asserted  in  writing on or prior to such date will
survive  until  they are  decided  and are final and  binding  on the  parties).
Indemnification  obligations to be satisfied out of the Special Escrow Fund will
terminate at such time as all such matters shall have been fully paid or finally
settled.

Representations and Warranties

      The  Merger  Agreement  contains  various  customary  representations  and
warranties of Ross Roy relating to, among other things: (a) the organization and
similar  corporate  matters  of Ross Roy and each of its  subsidiaries;  (b) the
capital structure of Ross Roy and each of its subsidiaries;  (c)  authorization,
execution,  delivery, performance and enforceability of the Merger Agreement and
related  matters;  (d) absence of conflicts under charters or by-laws,  required
consents or approvals and no violations of any agreements or laws; (e) financial
statements  provided  to Omnicom by Ross Roy;  (f)  absence of certain  material
adverse events,  changes or effects; (f) certain accounting matters; (g) certain
contracts,  including,  but not limited to,  certain real and personal  property
leases,  and employment,  consulting and benefit  matters;  (h) litigation;  (i)
certain tax matters; (j) undisclosed liabilities;  (k) insurance; (l) compliance
with law and licenses,  authorizations and permits held by Ross Roy necessary to
conduct its  business;  (m) client  relations;  (n)  employment  relations;  (o)
retirement  and  other  employee  plans and  matters  relating  to the  Employee
Retirement  Income Security Act of 1974, as amended;  and () trademarks,  trade
names,  assumed  or  fictitious  names,  copyrights,  logos,  service  marks and
slogans.

      The Merger Agreement also contains various customary  representations  and
warranties of Omnicom  relating to, among other  things;  (a)  organization  and
similar corporate matters of Omnicom and OmniSub;  (b) authorization,  execution
and delivery of the Merger  Agreement  and related  matters;  (c) absence of any
conflicts  under  charters or by-laws,  required  consents or  approvals  and no
violations of any  agreements or laws; (d) the shares of Omnicom Common Stock to
be issued in the transaction;  (e) fiancial  statements provided to Ross Roy by
Omnicom;  (f) absence of certain  adverse  events,  changes or effects;  and (g)
litigation.

Certain Covenants

     Pursuant  to the Merger  Agreement,  Ross Roy has agreed  that,  during the
period from the date of the Merger  Agreement  until the Closing Date,  Ross Roy
and each of its subsidiaries will, among other things: (a) not solicit, initiate
or encourage any other offer or inquiry  concerning the  acquisition of Ross Roy
except as may be necessary to fulfill the fiduciary obligations of the Directors
of Ross Roy (in which  case,  if such an  alternate  transaction  results in the
termination  of the Merger  Agreement,  Omnicom  will be  entitled  to receive a
$1,000,000  termination  fee);  (b)  give  timely  notice  of a  meeting  to its
shareholders to approve the Merger Agreement and the appointment of the Ross Roy
Shareholder Representative; (c) inform Omnicom's management as to the operation,
management and business of Ross Roy; (d) permit Omnicom to make such  reasonable
investigation of the assets,  properties and businesses of Ross Roy as they deem
necessary or advisable;  and (e) except (i) as permitted by the Merger Agreement
and (ii) as otherwise consented to in writing by Omnicom, operate its businesses


                                       23
<PAGE>

in the ordinary course and, to the extent consistent with past practice, and use
reasonable  commercial  efforts  to  preserve  existing  business  organization,
existing business relationships, and goodwill intact.

     Pursuant to the Merger  Agreement,  Omnicom has agreed to cause Ross Roy to
maintain in effect for six years (or a lesser period of time, in certain events)
the  current  policies of  directors'  and  officers'  liability  insurance  and
fiduciary liability insurance  maintained by Ross Roy, or to substitute therefor
policies containing substantially the same coverage.

     Pursuant to the Merger Agreement, Ross Roy and Omnicom have covenanted with
one another to take certain additional  actions,  including without  limitation;
(a) Ross Roy and Omnicom each shall take all corporate  and other  action,  make
all filings with  governmental  authorities  and use its  reasonable  efforts to
obtain in writing all  approvals  and  consents  required  to be taken,  made or
obtained  by it  in  order  to  effectuate  the  Merger;  (b)  to  prepare  this
Prospectus/Information Statement and the Registration Statement of which it is a
part,  with  each  party  representing  and  warranting  to the  other as to the
accuracy of the information supplied by it for inclusion herein; and (c) to each
use its reasonable  efforts to consummate the Merger and the other  transactions
contemplated by the Merger Agreement.

Certain Conditions to the Merger

     In  addition to  approval  of the Merger  Agreement  and the Merger and the
appointment  of  the  Ross  Roy  Shareholder  Representative  by  the  Ross  Roy
Shareholders at the Special Meeting,  and to the required regulatory  approvals,
the respective  obligations  of Omnicom,  OmniSub and Ross Roy to consummate the
Merger are subject to the satisfaction of certain conditions,  including without
limitation: (i) the accuracy in all material respects of the representations and
warranties made by the parties in the Merger Agreement;  (ii) the performance by
the parties of their respective  obligations under the Merger Agreement prior to
the Closing  Date;  (iii) the  absence of any  material  adverse  changes in the
condition of the  businesses of Ross Roy on the one hand or Omnicom on the other
hand; (iv) the effectiveness of the Registration  Statement under the Securities
Act with respect to the shares of Omnicom Common Stock to be issued  pursuant to
the Merger  Agreement  and the  approval of the listing of such  Omnicom  Common
Stock on the New York Stock  Exchange;  (v) the  execution  and  delivery of the
Escrow  Agreement;  (vi) the absence of any action or  proceeding  enjoining the
transactions  contemplated by the Merger Agreement; and (vii) the absence of any
action or proceeding by any  governmental  agency that might result in enjoining
the consummation of said transactions.

     The  obligations of Omnicom and OmniSub to effect the Merger are subject to
satisfaction of certain additional conditions including, without limitation: (i)
the  SEC  not  having  objected  to  Omnicom's  treatment  of  the  Merger  as a
pooling-of-interests  for  accounting  purposes;  and  (ii)  the  execution  and
delivery of employment agreements with Ross Roy by each of Peter R. Mills, Chris
A. Lawson, F. Peter Middleton,  Timothy G. Copacia,  Paula A. Eridon,  Calvin L.
Parent,  Gary I.  Wolfson,  Richard  C.  Ward  and  Janet C.  Muhleman,  and the
execution  and  delivery  of  non-competition  agreements  by each of such  nine
individuals.

     The  obligations  of Ross Roy to  effect  the  Merger  are  subject  to the
satisfaction of certain additional conditions including, without limitation, the
receipt by Ross Roy of the McDonald fairness opinion.

     Pursuant to the terms of the Merger Agreement, each of Omnicom and Ross Roy
is entitled to waive any of its conditions to  consummation of the Merger to the
extent that any such  condition  is not  satisfied  in full by the other  party,
other than  conditions  relating to the  treatment of the Merger by the SEC as a
pooling-of-interests  for  accounting  purposes and the approval of the Ross Roy
Vote Matters by the Ross Roy Shareholders.

Closing Date

     The Closing Date shall occur on the fifth  business day  following the date
on which the last of the of the  above-described  conditions to the Merger shall
have been fulfilled or waived in accordance with the Merger Agreement or on such
other date as Omnicom and Ross Roy shall agree.

Termination

     The Merger Agreement may be terminated and the  contemplated  Merger may be
abandoned at any time prior to the Closing,  whether before or after approval by
the Ross Roy  Shareholders,  (a) by mutual consent of the Boards of Directors of
Omnicom,  OmniSub and Ross Roy; (b) by either  Omnicom and  OmniSub,  on the one


                                       24
<PAGE>

hand,  or Ross  Roy,  on the  other  hand,  if there  has  been a breach  of any
representation, warranty or covenant on the part of the other party set forth in
the Merger  Agreement  which breach has not been cured within 30 days  following
receipt by the  breaching  party of notice of such breach,  unless the breach of
any such  representation,  warranty,  or covenant does not materially  adversely
affect the  business or assets of the  breaching  party or the ability of either
party or parties to  consummate  the Merger;  (c) by the Board of  Directors  of
Omnicom,  OmniSub or Ross Roy,  if a final and  nonappealable  order,  decree or
judgment  of any court or other  governmental  authority  is issued  which would
enjoin the Merger;  (d) by either Omnicom and OmniSub or Ross Roy if the Closing
Date shall not have occurred prior to the close of business on December 29, 1995
or if the  conditions  to such  parties'  obligation  to close shall have become
incapable  of being  satisfied  by  December  29,  1995;  or (e) by the Board of
Directors of Ross Roy if Ross Roy enters into a definitive  agreement  accepting
an  acquisition  proposal  (or  resolves to do so) which the Board of  Directors
concludes in good faith on the basis of advice from independent counsel that (i)
such action is required in order for such Board of  Directors to act in a manner
which is consistent with its fiduciary  obligations imposed under applicable law
and (ii) the acquisition proposal would be an economically  superior alternative
to the Merger for the Ross Roy Shareholders.

     If either (i) Ross Roy or Omnicom  terminates the Merger Agreement pursuant
to the provision  described in clause (d) above  following a failure of the Ross
Roy   Shareholders  to  approve  the  Merger   Agreement  and  the  transactions
contemplated  thereby,  if before the  Special  Meeting  there was a proposal or
offer for an acquisition  proposal which at the time of the Special  Meeting was
not rejected by the Board of Directors of Ross Roy, or (ii) Ross Roy  terminates
the Merger  Agreement  pursuant to clause (e),  then Ross Roy shall,  within one
business  day  after  receipt  of a  request  from  Omnicom,  pay to  Omnicom  a
termination fee of $1,000,000.

Amendment

     The Merger Agreement and the exhibits and schedules thereto may be amended,
supplemented  or qualified by the parties only by an agreement in writing signed
by all parties with due authorization.

                              Other Considerations

Certain Income Tax Consequences

     (The  following is a brief  summary of the income tax  consequences  of the
Merger.  It is not  intended to be a complete  explanation  thereof and is based
upon certain assumptions set forth in the opinion of Deloitte & Touche LLP filed
as an Exhibit to the Registration Statement of which this Prospectus/Information
Statement is a part. No opinion has been expressed as to the U.S. state or local
tax  consequences  or foreign  tax  consequences  except in respect of  Canadian
residents of these  transactions.  In  addition,  the  following is  necessarily
general  in  nature  and  does  not  take  into  account  the   particular   tax
circumstances of any individual Ross Roy Shareholder.  Each Ross Roy Shareholder
should  consult his own tax  advisors  as to the  specific  consequences  of the
proposed  Merger for such  Shareholder,  including the application and effect of
state, local and foreign tax laws.)

     The Merger has been  structured  to qualify as a "tax-free"  reorganization
within the  meaning of Section  368 of the  Internal  Revenue  Code of 1986,  as
amended  (the  "Code").  Deloitte & Touche LLP,  Ross Roy's tax  advisors in the
Merger,  has rendered its opinion as to the federal income tax  consequences  of
the  Merger.  The opinion of  Deloitte & Touche LLP is based  entirely  upon the
Code,  regulations now in effect thereunder,  current administrative rulings and
practice,  and judicial authority,  all of which are subject to change. Unlike a
ruling  from the  Internal  Revenue  Service,  an opinion is not  binding on the
Internal  Revenue  Service  and  there can be no  assurance,  and none is hereby
given,  that the Internal  Revenue Service will not take a position  contrary to
one or more positions reflected herein or that the opinion will be upheld by the
courts if challenged by the Internal Revenue Service.

     In the  opinion  of  Deloitte  & Touche  LLP,  which  opinion is based upon
various  representations  and subject to various assumptions and qualifications,
the following  federal income tax  consequences,  among others,  result from the
Merger:

          1. No gain or loss will be  recognized  by Ross Roy as a result of the
     Merger or the  exchange  of shares of Ross Roy  Common  Stock for shares of
     Omnicom Common Stock.


                                       25
<PAGE>

          2. No gain or loss will be recognized by a Ross Roy Shareholder on the
     exchange of Ross Roy Common Stock solely for Omnicom Common Stock.

          3. The aggregate  basis of the Omnicom Common Stock received by a Ross
     Roy Shareholder  (including any fractional  share interest such Shareholder
     might  otherwise  receive) will be the same as the aggregate  basis for the
     shares of Ross Roy Common Stock surrendered in exchange therefor.

          4. The payments of cash in lieu of  fractional  shares will be treated
     as if the  fractional  shares were  distributed as part of the exchange and
     then  redeemed by Omnicom.  Any Ross Roy  Shareholder  who receives cash in
     lieu of a fractional  share interest in Omnicom will recognize gain or loss
     measured by the  difference  between  the cash  received in respect of such
     fractional  share and the portion of the basis of his Ross Roy Common Stock
     allocable thereto.

          5. The holding  period of the Omnicom  Common Stock received by a Ross
     Roy Shareholder  (including any fractional  share interest such Shareholder
     might  otherwise  receive) will include the holding  period of the Ross Roy
     Common Stock  surrendered  in the  exchange  therefor,  provided  that such
     surrendered Ross Roy Common Stock was held by such Shareholder as a capital
     asset on the date of the Merger.

     No ruling will be sought from the  Internal  Revenue  Service on any of the
foregoing federal tax consequences of the Merger.

     With  respect to the  Omnicom  Common  Stock to be  received  by the Former
Eligible Employee Holder:

          1.  The  Omnicom   Common  Stock   received   will  be  an  additional
     distribution for the previously  redeemed Ross Roy Common Stock and will be
     taxable to the extent of the fair market value, at the date distributed, of
     the  Omnicom  Common  Stock a  portion  of which  may be  characterized  as
     interest income.

          2. The Former Eligible  Employee  Holder's basis in the Omnicom Common
     Stock  shall  equal  its  fair  market  value,  as  determined  on the date
     received.

     No ruling will be sought from the  Internal  Revenue  Service on any of the
foregoing federal tax consequences to the Former Eligible Employee Holder.

     With respect to the Omnicom Common Stock to be received by the EPU Holder:

          1. The fair market value of the Omnicom Common Stock shall be included
     in gross income of the EPU Holder as compensation.

          2. The EPU Holder's  basis in the Omnicom Common Stock shall equal the
     amount included by the EPU Holder in gross income.

     No ruling will be sought from the  Internal  Revenue  Service on any of the
foregoing federal tax consequences to the EPU Holder.

     With respect to certain Ross Roy Shareholders  who are Canadian  residents,
for Canadian tax purposes:

          1. The fair market  value of the Omnicom  Common  Stock  received,  as
     determined  on the date  received,  less the adjusted cost base in the Ross
     Roy Common Stock exchanged,  shall be gain, of which three-fourths shall be
     included in gross income.

          2. The adjusted cost base of the Omnicom  Common Stock  received shall
     equal its fair market value, as determined on the date received.

     No  ruling  will be sought  from  Revenue  Canada  on any of the  foregoing
federal tax consequences to the Canadian resident Ross Roy Shareholders.

     A copy of the opinion of Deloitte & Touche LLP has been filed as an Exhibit
to the Registration Statement of which this Prospectus/Information  Statement is
a part and is incorporated herein by reference.


                                       26
<PAGE>

Accounting Treatment

     The Merger will be accounted  for as a  pooling-of-interests  for financial
reporting purposes in accordance with generally accepted accounting  principles.
Accordingly, upon consummation of the Merger, the assets and liabilities of Ross
Roy will be  included  in the  consolidated  balance  sheet of  Omnicom  and its
subsidiaries  in the  amounts  which  were  included  in the  books  of Ross Roy
immediately before the Merger.

Regulatory Approvals

     Under the  Hart-Scott-Rodino Act and the rules promulgated therewith by the
FTC, the Merger may not be consummated until  notifications  have been given and
certain information has been furnished to the FTC and the Antitrust Division and
specified waiting period requirements have been satisfied.  Omnicom and Ross Roy
each filed  notification and report forms under the  Hart-Scott-Rodino  Act with
the FTC and the Antitrust  Division on ____________,  1995. The required waiting
period under the  Hart-Scott-Rodino Act was terminated early on _______________,
1995. 

     At any time  before or after  consummation  of the  Merger,  the  Antitrust
Division or the FTC could take such action under the antitrust  laws as it deems
necessary or desirable in the public interest,  including  seeking to enjoin the
consummation of the Merger or seeking  divestiture of assets of Omnicom.  At any
time  before  or  after  the  Closing  Date,   and   notwithstanding   that  the
Hart-Scott-Rodino  Act  waiting  period has  expired,  any state could take such
action under the antitrust laws as it deems necessary or desirable in the public
interest.  Such action could include  seeking to enjoin the  consummation of the
Merger or seeking  divestiture  of assets of Omnicom.  Private  parties may also
seek to take legal action under the antitrust laws under certain  circumstances.

     Based on information  available to them,  Omnicom and Ross Roy believe that
the Merger can be effected in compliance  with Federal and state antitrust laws.
However,  there can be no assurance that a challenge to the  consummation of the
Merger on antitrust  grounds will not be made or that, if such a challenge  were
made,  Omnicom  and Ross Roy would  prevail or would not be  required  to accept
certain  conditions,  possibly  including  certain  divestitures  of  assets  of
Omnicom, in order to consummate the Merger.

Resales of Omnicom Common Stock

     All shares of Omnicom Common Stock received by the Ross Roy Shareholders as
a result  of the  Merger  will be freely  transferable,  except  that  shares of
Omnicom Common Stock received by persons who are deemed to be  "affiliates"  (as
such  term is  understood  under  the  Securities  Act) of Ross Roy prior to the
Merger ("Ross Roy Affiliates") shall be subject to certain restrictions, as more
fully described below. Persons who may be deemed to be affiliates of Ross Roy or
Omnicom generally include  individuals or entities that control,  are controlled
by, or are under  common  control  with,  such  party  and may  include  certain
officers and directors of such party as well as principal  shareholders  of such
party. The Merger  Agreement  provides that Ross Roy will furnish Omnicom with a
list  identifying  all persons who may be considered to be Ross Roy  Affiliates,
and gives Omnicom the right to review such list and require changes. Ross Roy is
required  to use its best  efforts to cause each of the Ross Roy  Affiliates  to
execute a written  agreement  to comply  fully with the  restrictions  described
below,  and the receipt of such written  agreements from each Ross Roy Affiliate
is a condition to Omnicom's obligation to consummate the Merger.

     Federal  Securities  Laws.  Shares of Omnicom Common Stock received by Ross
Roy Affiliates may be resold by such Ross Roy  Affiliates  only in  transactions
permitted by the resale  provisions of Rule 145 promulgated under the Securities
Act or as otherwise permitted under the Securities Act.

     Pooling-of-Interests  Rules.  In  order  to  satisfy  a  condition  of  the
pooling-of-interests  rules  as the  accounting  treatment  to be  accorded  the
Merger, Ross Roy Affiliates may not sell, assign, transfer,  convey, encumber or
dispose of, directly or indirectly,  or otherwise reduce their risk relative to,
any shares of  Omnicom  Common  Stock  until the  publication  by Omnicom of its
financial  results  covering  a  period  of at  least  thirty  days of  combined
operations of Ross Roy after the Closing Date.  This  prohibition  precludes the
use of "hedging" techniques during this period.


                                       27
<PAGE>

Stock Exchange Listing

     It is a  condition  to the Merger that the shares of Omnicom  Common  Stock
required to be issued in connection with the Merger be authorized for listing on
the NYSE, subject to official notice of issuance. [An application has been filed
for listing such Omnicom Common Stock on the NYSE.]

No Dissenters' Rights

     Holders  of Ross  Roy  Common  Stock  are not  entitled  to any  rights  of
dissenting shareholders under Michigan law in connection with the Merger.

                          THE ESCROW AGREEMENT AND THE
                      ROSS ROY SHAREHOLDER REPRESENTATIVE

The Escrow Agreement

     (The  information  contained in this  Registration  Statement of which this
Prospectus/Information  Statement  forms a part is  qualified in its entirety by
reference  to the  complete  text of the Escrow  Agreement  which is filed as an
Exhibit thereto and is incorporated herein by reference.)

     As described  under "--The  Merger  Agreement  and the  Merger--The  Merger
Agreement--Indemnification  Obligations",  in order to  satisfy  indemnification
obligations under the Merger Agreement, the Ross Roy Shareholders, together on a
pro rata basis with the EPU Holder  and the Former  Eligible  Employee  Holders,
will deposit shares of Omnicom Common Stock into the General Escrow Fund and the
Special  Escrow Fund under the Escrow  Agreement.  The General  Escrow Fund will
contain shares of Omnicom Common Stock having an aggregate Market Value equal to
$2,525,000,  and the Special  Escrow Fund will contain  shares of Omnicom Common
Stock having an aggregate Market Value equal to $1,300,000.

     Each of the Ross Roy  Shareholders,  the EPU Holder and the Former Eligible
Employee  Holders shall be depositing  his pro rata share of the General  Escrow
Fund or Special  Escrow Fund (rounded up to the nearest whole share)  determined
by multiplying  the aggregate  number of shares of Omnicom Common Stock required
to be deposited  into such Escrow Fund by a fraction,  the numerator of which is
the number of shares of Omnicom Common Stock issuable to such  individual in the
Merger  and the  denominator  of which is the total  number of shares of Omnicom
Common Stock issuable in the Merger to all such individuals  required to provide
indemnification.

     Based upon the  assumptions  set forth above under  "Conversion of Ross Roy
Common Stock", of the $118.21  Conversion Price payable in respect of each share
of Ross Roy Common  Stock,  Omnicom  Common  Stock having a Market Value of $___
would be deposited in the General  Escrow Fund and Omnicom Common Stock having a
Market Value of $___ would be deposited  in the Special  Escrow Fund.  Since the
amounts  held  in such  Escrow  Funds  are  subject  to  claims  for  contingent
liabilities,  there can be no  assurances  that  amounts  held  therein  will be
returned to the Ross Roy Shareholders.

     For purposes of satisfying  any claims,  each share of Omnicom Common Stock
deposited in either Escrow Fund will be valued at the Market  Value,  regardless
of actual fluctuations of the market value of the Omnicom Common Stock after the
Closing Date.

     Pursuant to the Escrow Agreement, the Ross Roy Shareholder  Representative,
on behalf  of the Ross Roy  Shareholders,  shall  grant to  Omnicom  a  security
interest in the Escrow Funds to secure the  performance  of the  indemnification
obligations  of the Ross Roy  Shareholders  under the Merger  Agreement  and the
performance of their obligations to Omnicom under the Escrow Agreement.

     The Escrow  Agreement  shall  automatically  terminate  if and when all the
shares of  Omnicom  Common  Stock  held in either  Escrow  Fund  shall have been
distributed  by the  Escrow  Agent in  accordance  with the terms of the  Escrow
Agreement.

     General Escrow Fund. The Escrow Agreement provides that, upon determination
that an indemnification  payment is due to Omnicom from the General Escrow Fund,
the Escrow  Agent shall,  to the extent that the shares of Omnicom  Common Stock
then on deposit in the General  Escrow Fund shall be sufficient for the purpose,


                                       28
<PAGE>

deliver to Omnicom the number of shares of Omnicom  Common Stock,  valued at the
original  Market  Value,  equal  to the  indemnification  payment.  The Ross Roy
Shareholder  Representative  shall have the right to  dispute  any such claim by
Omnicom and require  arbitration of the items in dispute;  any such  arbitration
shall cover all outstanding claims for indemnification by Omnicom and shall take
place on the second  business  day  following  the one year  anniversary  of the
Closing Date.

     On the next business day following the earlier of (x) the first independent
audit  report,  if any, of Ross Roy  following the Closing Date, or (y) one year
from  the  Closing  Date,  the  Escrow  Agent  shall  deliver  to the  Ross  Roy
Shareholders the remaining shares of Omnicom Common Stock then on deposit in the
General  Escrow Fund, as reduced by any amounts  necessary to cover  outstanding
claims, including claims then in dispute.

     All dividends,  interest and other amounts  received with respect to shares
of Omnicom  Common Stock held in the General Escrow Fund shall be income for tax
purposes to the Ross Roy  Shareholders,  shall be paid  directly to the Ross Roy
Shareholders, and shall not constitute part of the General Escrow Fund.

     Special Escrow Fund. The Escrow Agreement provides that, upon determination
that an indemnification  payment is due to Omnicom from the Special Escrow Fund,
the Escrow  Agent shall,  to the extent that the shares of Omnicom  Common Stock
then on deposit in the Special  Escrow Fund shall be sufficient for the purpose,
deliver to Omnicom the number of shares of Omnicom  Common Stock,  valued at the
original  Market  Value,  equal  to the  indemnification  payment.  The Ross Roy
Shareholder  Representative  shall have the right to  dispute  any such claim by
Omnicom and require  arbitration of the items in dispute;  any such  arbitration
shall cover all outstanding claims for indemnification by Omnicom, and the first
such  arbitration  shall  take place no earlier  than the  second  business  day
following the one year anniversary of the Closing Date.

     At such time as all claims  reimbursable  out of the  Special  Escrow  Fund
shall have been  finally  determined  and all  indemnification  payments  due to
Omnicom have been made to Omnicom,  the Escrow  Agent shall  deliver to the Ross
Roy Shareholders the remaining shares of Omnicom Common Stock then on deposit in
the Special Escrow Fund.

     All dividends,  interest and other amounts  received with respect to shares
of Omnicom  Common Stock held in the Special Escrow Fund shall be income for tax
purposes to the Ross Roy  Shareholders,  shall be paid  directly to the Ross Roy
Shareholders, and shall not constitute part of the Special Escrow Fund

Appointment of the Ross Roy Shareholder Representative

     It is a condition to Closing under the Merger  Agreement  that the Ross Roy
Shareholders  appoint the Ross Roy  Shareholder  Representative  to act as their
collective agent in connection with the Escrow Agreement,  including one or more
alternative individuals to act as the Ross Roy Shareholder Representative in the
event that the designated Representative shall have died, resigned, or otherwise
become incapable or unwilling to act as Representative.

     The Ross Roy Shareholder Representative shall also act as the agent for the
Former  Eligible  Employee  Holders  and the EPU  Holder;  the  EPU  Holder  has
delivered to Ross Roy his written agreement to such effect.

     Appointment of the Ross Roy  Shareholder  Representative  shall include the
specific  authorization  for such  Representative to (i) execute and deliver the
Escrow Agreement at the Effective Time of the Merger and any documents  incident
or   ancillary   thereto,   including   without   limitation   any   amendments,
cancellations,  extensions  or waivers in respect  thereof;  (ii) respond to and
make  determinations  in  respect  of the  assertion  of any and all  claims for
indemnification  by  Omnicom,  and to  assert  claims  on behalf of the Ross Roy
Shareholders,  the EPU Holder and the Former Eligible Employee Holders, pursuant
to the  terms of the  Escrow  Agreement  and the terms of the  Merger  Agreement
pertaining  thereto;  (iii)  execute and deliver any stock  powers  which may be
required  to be  executed  by any Ross Roy  Shareholder,  the EPU  Holder or any
Former  Eligible  Employee  Holder in order to permit the delivery to Omnicom of
any shares of Omnicom  Common Stock to be delivered to it pursuant to the Escrow
Agreement; and (iv) take all such other actions as may be necessary or desirable
to  carry  out  his  responsibilities  as  collective  agent  of  the  Ross  Roy
Shareholders,  the EPU Holder and Former Eligible Employee Holders in respect of
the Escrow Agreement.

     In  addition,  the  terms  of the  appointment  shall  be that the Ross Roy
Shareholder  Representative shall not be responsible to any Ross Roy Shareholder
for any loss or damage any such Ross Roy Shareholder may suffer by reason of the
performance  of his  duties,  other  than loss or damage  arising  from  willful
violation of the law or gross negligence in the performance of his duties as the


                                       29
<PAGE>

Ross Roy Shareholder Representative. This term of appointment shall be confirmed
by each Ross Roy Shareholder in the transmittal form furnished by him to Omnicom
as  described  under  "The  Merger  Agreement  and  the   Merger--Procedure  for
Distributing Shares of Omnicom Common Stock to Ross Roy Shareholders".

     Finally,  the appointment of the Ross Roy Shareholder  Representative shall
also  include the consent of the Ross Roy  Shareholders  to the  procedure to be
followed  in the  event  that the Ross Roy  Shareholder  Representative  and any
alternate  shall be unable or  unwilling  to serve or continue to serve as such.
Pursuant to such procedure,  a new Ross Roy Shareholder  Representative shall be
chosen by majority  vote of those persons who were members of the Ross Roy Board
of Directors  immediately prior to the Effective Time of the Merger, any of whom
shall be entitled to call a meeting for such purpose.

     The proposal  before the Ross Roy  Shareholders  is that Chris A. Lawson be
appointed as Ross Roy Shareholder Representative, with Richard C. Ward appointed
as alternate.  Messrs.  Lawson and Ward are directors and executive  officers of
Ross Roy and Ross Roy Shareholders;  Mr. Lawson is also the EPU Holder. See "The
Merger  Agreement  and the  Merger--Interests  of Ross Roy's  Management  in the
Merger" and "Business  Information  Concerning Ross Roy--Executive  Officers and
Directors,  Principal  Shareholders"  for more  detailed  descriptions  of these
interests.

Recommendation of the Ross Roy Board of Directors

     The Ross Roy Board of Directors  believes that the  appointment of the Ross
Roy  Shareholder  Representative  is in  the  best  interests  of the  Ross  Roy
Shareholders  and  recommends  that  the  Ross  Roy  Shareholders  vote  FOR the
appointment  of Chris A.  Lawson as Ross Roy  Shareholder  Representative,  with
Richard C. Ward as alternate.

                    BUSINESS INFORMATION CONCERNING OMNICOM

     (The information  contained in this section is qualified in its entirety by
reference to documents incorporated by reference.)

     Omnicom,  through  its  wholly  and  partially  owned  companies,  operates
advertising  agencies  which  plan,  create,  produce and place  advertising  in
various media such as television,  radio,  newspaper and  magazines;  and offers
clients such  additional  services as marketing  consultation,  consumer  market
research,  design and production of merchandising  and sales promotion  programs
and materials,  direct mail advertising,  corporate  identification,  and public
relations.  Omnicom  offers  these  services  to clients  worldwide  on a local,
national,  pan-regional or global basis.  Operations  cover the major regions of
North America,  the United Kingdom,  Continental  Europe, the Middle East, Latin
America,  the  Far  East  and  Australia.   In  1994  and  1993,  54%  and  52%,
respectively, of Omnicom's billings came from its non-U.S. operations.

     According to the  unaudited  industry-wide  figures  published in the trade
journal,  Advertising  Age,  in 1994  Omnicom  was  ranked as the third  largest
advertising agency group worldwide.

     Omnicom  operates three separate,  independent  agency  networks:  the BBDO
Worldwide Network,  the DDB Needham Worldwide Network and the TBWA International
Network.  Omnicom also operates independent agencies,  Altschiller & Company and
Goodby,  Silverstein  & Partners,  and certain  marketing  service and specialty
advertising companies through Diversified Agency Services.

     BBDO Worldwide, DDB Needham Worldwide and TBWA International, by themselves
and through their respective subsidiaries and affiliates,  independently operate
advertising  agency  networks  worldwide.  Their  primary  business is to create
marketing  communications for their clients' goods and services across the total
spectrum of advertising and promotion media. Each of the agency networks has its
own clients and competes with each other in the same markets.

     The BBDO Worldwide,  DDB Needham Worldwide and TBWA International  agencies
typically  assign to each client a group of  advertising  specialists  which may
include account  managers,  copywriters,  art directors and research,  media and
production personnel.  The account manager works with the client to establish an
overall advertising strategy for the client based on an analysis of the client's
products or services and its market. The group then creates and arranges for the
production of the  advertising  and/or  promotion and purchases  time,  space or
access in the relevant media in accordance with the client's budget.


                                       30
<PAGE>
                       SELECTED FINANCIAL DATA OF OMNICOM

     The following table summarizes certain selected consolidated financial data
of Omnicom and its  subsidiaries  and is  qualified  in its entirety by the more
detailed financial  information and notes thereto incorporated by reference into
this Prospectus/Information Statement.

<TABLE>
<CAPTION>

                                                      (Dollars in Thousands Except Per Share Amounts)
                                           --------------------------------------------------------------------
                                              1994           1993          1992          1991           1990
                                           ----------     ----------    ----------    ----------     ----------
<S>                                        <C>            <C>           <C>           <C>            <C>
For the year:       
  Commissions and fees ...............     $1,756,205     $1,516,475    $1,385,161    $1,236,158     $1,178,233
  Income before change
     in accounting principles ........        108,134         85,345        65,498        57,052         52,009
  Net income .........................         80,125         85,345        69,298        57,052         52,009
  Earnings per common
     share before change in
     accounting principles:
      Primary ........................           3.15           2.79          2.31          2.08           2.01
      Fully diluted ..................           3.07           2.62          2.20          2.01           1.94
  Cumulative effect of
     change in accounting
     principles:
    Primary ..........................          (0.81)           --           0.14           --             -- 
    Fully diluted ....................          (0.81)           --           0.11           --             -- 

  Earnings per common share after
    change in accounting principles:
    Primary ..........................           2.34           2.79          2.45          2.08           2.01
    Fully diluted ....................           2.34           2.62          2.31          2.01           1.94
  Dividends declared per common
    share ............................           1.24           1.24          1.21          1.10           1.07

At year end:
  Total assets .......................      2,852,204      2,289,863     1,951,950     1,885,894      1,748,529
  Long-term obligations:
    Long-term debt ...................        187,338        278,312       235,129       245,189        278,960
    Deferred compensation and other
      liabilities ....................         95,973         56,933        51,919        31,355         25,365
</TABLE>


                                       31
<PAGE>

                    BUSINESS INFORMATION CONCERNING ROSS ROY

                            Description of Business

General

     Ross Roy is a full  service  marketing  communications  company,  which was
founded in 1926.  Ross Roy offers a full range of  services  that  include  both
media advertising and marketing  communications and promotional services.  These
services  consist  of  direct  marketing,  sales  promotion,  video  production,
database  management,   telemarketing,   training,   incentive   administration,
production  of  shows  and  meetings,   sales  support  services  and  satellite
teleconferencing.  It  is  also  active  in  the  development  and  use  of  new
communications technologies.

Products and Services

     Direct Marketing -- Services provided in this area include list management,
prospect  targeting,  telemarketing  and fulfillment.  Some of the programs that
Ross Roy has developed for previous  clients  include MCI's  "Friends & Family",
"GE Rewards" and the launch of Citibank's  AAdvantage  credit card. In addition,
Ross Roy currently serves as Chrysler  Corporation's  "Agency of Record" for its
Owner Communications Program and Target Direct Mail Program.

     Database  Management  -- Ross Roy has  developed  and managed  prospect and
customer databases for many of its principal clients. Three IBM AS/400 computers
are  dedicated to this  activity and Ross Roy employs over twenty five  computer
programmers,  each with an average of over ten years of  experience,  to deliver
this service.

     Telemarketing  -- A key aspect of direct marketing is  telemarketing.  Ross
Roy has a staff of over 140 who have the  capability  of  handling  over  25,000
inbound and outbound  telephone  calls daily.  The  information  captured during
these telephone  calls is added to the customer  databases,  analyzed,  enhanced
with other demographic data and used for many different activities including the
development of targeted prospect lists and fulfillment.

     Training  -- Ross Roy  provides a wide  range of  training  services  which
include product training, skills training, motivational training, sales training
and culture training.  Its techniques include seminars,  videocassettes for home
study, interactive videodiscs and a national satellite television network.

     Incentive Administration -- This service includes the processing of rebates
and incentive payments for a number of different clients.

     Shows  and  Meetings  -- Ross Roy  also  creates  and  produces  shows  and
meetings. Its productions utilize the most effective, state-of-the-art audio and
video delivery systems which include television, entertainment, film, videodiscs
and satellite teleconferencing,

Clients

     Ross Roy's clients include Chrysler Corporation,  Domino's Pizza, Inc., The
Sports Authority, Inc., Medicine Shoppe International,  Inc., Masco Corporation,
Nordic Track,  Inc., NBD Bancorp,  Inc.,  Sauder  Woodworking  Company,  Detroit
Edison Company and Blue Cross/Blue  Shield of Michigan.  Its principal client is
Chrysler  Corporation,  which accounted for  approximately 71% of total revenues
during 1994.  Ross Roy services  approximately  350 separate  business  units of
Chrysler.  Chrysler,  which has been a client  since the  Company  was  founded,
utilizes every service that Ross Roy offers.

Employees; Offices

     Ross Roy is a private  company  whose  stock is held by  approximately  100
employee-stockholders.  Ross Roy has over 800 employees, 700 of whom work at its
headquarters located in Bloomfield Hills, Michigan. Ross Roy also has offices in
Windsor, Ontario, Baltimore and Los Angeles.


                                       32
<PAGE>

            Executive Officers and Directors; Principal Shareholders

     The following table is furnished with respect to the executive officers and
directors  of Ross Roy as of June 15,  1995.  There are no family  relationships
between any of the  directors  or executive  officers.  The table also shows the
name and address of each person known by Ross Roy to be the beneficial owners of
more than 5% of either class of Ross Roy Common Stock as of June 15, 1995.

<TABLE>
<CAPTION>

                                                                  Shares of                 Shares of
                                                                   Class A                   Class B
                                              Position             Common                    Common
                                                with                Stock     Percent of      Stock     Percent
Name and Address                              Ross Roy              Owned        Class        Owned     of Class
- ----------------                           -------------          ----------  ----------   -----------  --------
<S>                                        <C>                     <C>          <C>          <C>         <C> 
Timothy G. Copacia                         Director and             5,000         1.43%       5,000       9.12%
c/o Ross Roy Communications, Inc.          Executive Vice
100 Bloomfield Hills Parkway               President--Director
Bloomfield Hills, Michigan 48304           Account Services

Paula A. Eridon                            Director and               830         0.24%           0       0.00%    
c/o Ross Roy                               Executive Vice
Communications, Inc.                       President--Director
100 Bloomfield Hills Parkway               Business Development
Bloomfield Hills, Michigan 48304          

Verne C. Hampton, II                       Director and                 0         0.00%           0       0.00%    
c/o Ross Roy                               Secretary
Communications, Inc.                       
100 Bloomfield Hills Parkway
Bloomfield Hills, Michigan 48304

Chris A. Lawson                            Director and            37,946        10.89%      10,000      18.25%    
c/o Ross Roy                               Executive Vice
Communications, Inc.                       President--Finance,
100 Bloomfield Hills Parkway               Chief Financial
Bloomfield Hills, Michigan 48304           Officer, Treasurer
                                           

F. Peter Middleton                         Director and             5,000         1.43%       5,000       9.12%
c/o Ross Roy Communications, Inc.          Executive Vice
100 Bloomfield Hills Parkway               President--Director
Bloomfield Hills, Michigan 48304           Diversified Services

Peter R. Mills                             Director and            25,000(A)      6.97%      10,000      18.25%    
c/o Ross Roy                               Chairman, President
Communications, Inc.                       and Chief Executive
100 Bloomfield Hills Parkway               Officer
Bloomfield Hills, Michigan 48304           

Janet C. Muhleman                          Director and            20,000         5.74%           0       0.00%    
c/o Ross Roy                               Executive
Communications, Inc.                       Vice President
100 Bloomfield Hills Parkway               
Bloomfield Hills, Michigan 48304

Calvin L. Parent                           Director and            19,500         5.60%       5,000       9.12%    
c/o Ross Roy                               President--Ross
Communications, Inc.                       Roy Communications
100 Bloomfield Hills Parkway               Canada
Bloomfield Hills, Michigan 48304       
</TABLE>

                                       33
<PAGE>

<TABLE>
<CAPTION>
    
                                                                  Shares of                 Shares of
                                                                   Class A                   Class B
                                              Position             Common                    Common
                                                with                Stock     Percent of      Stock     Percent
Name and Address                              Ross Roy              Owned        Class        Owned     of Class
- ----------------                           -------------          ----------  ----------   -----------  --------
<S>                                        <C>                     <C>          <C>          <C>         <C> 
Peter Vetowich                             Director and            32,137         9.22%       4,800       8.77%
c/o Ross Roy Communications, Inc.          Executive Vice
100 Bloomfield Hills Parkway               President--Director
Bloomfield Hills, Michigan 48304           Retail Operations

Richard C. Ward                            Director and            48,070        13.80%      10,000      18.25%
c/o Ross Roy  Communications, Inc.         Vice Chairman                      
100 Bloomfield Hills Parkway
Bloomfield Hills, Michigan 48304

Gary I. Wolfson                            Director and             5,000         1.43%       5,000       9.12%
c/o Ross Roy Communications, Inc.          Executive Vice
100 Bloomfield Hills Parkway               President--Chief
Bloomfield Hills, Michigan 48304           Creative Officer

Peter Hirsch                               Co-Chairman/            22,584         6.48%           0       0.00%
240 East 15th Street                       Executive Creative
New York, NY 10003                         Director--Ross Roy
                                           Communications/N.Y.

Executive Officers and Directors                                  198,483        55.37%      54,800     100.00%
as a group (11 persons)
</TABLE>
- ----------------
(A)  Includes  10,000  shares of Class A Common  Stock  which Mr.  Mills has the
     right to acquire within 60 days pursuant to the exercise of stock options.


                                       34
<PAGE>

                      SELECTED FINANCIAL DATA OF ROSS ROY

     The following table summarizes  certain selected financial data of Ross Roy
and is qualified in its entirety by the more detailed financial  information and
notes thereto appearing elsewhere in this Prospectus/Information  Statement. The
financial  data as of and for each of the five years ended  December 31, 1994 is
derived from audited consolidated  financial statements.  The financial data for
the three month periods ended March 31, 1994 and 1995 are derived from unaudited
financial  statements and, in the opinion of Ross Roy,  reflect all adjustments,
consisting only of normal recurring adjustments,  necessary for a fair statement
of results of  operations  for such  periods.  Operating  results  for the three
months ended March 31, 1995 are not  necessarily  indicative of the results that
may be achieved for the entire year ending  December 31, 1995. The  consolidated
financial  statements as of and for the three years ended  December 31, 1994 and
the independent auditors' report from Deloitte & Touche LLP thereon are included
as part of this  Prospectus/Information  Statement. See "Financial Statements of
Ross Roy", the related notes thereto and  "Management's  Discussion and Analysis
of Financial Condition and Results of Operations of Ross Roy".

<TABLE>
<CAPTION>

                                                       (Dollars in Thousands Except Per Share Amounts)
                                              ----------------------------------------------------------------
                                                1994           1993          1992           1991        1990
                                              -------        -------       -------        -------      -------
<S>                                           <C>            <C>           <C>            <C>          <C>    
For the year:
  Commissions and fees .................      $65,727        $79,445       $86,443        $84,349      $84,491
  Income (loss) before change
     in accounting principles ..........        3,709          4,542        (7,044)        (1,449)       1,381
  Net income (loss) ....................        3,709          4,542        (7,644)        (1,449)       1,381
  Earnings per common share before
     change in accounting principle:
        Primary ........................        11.98           9.23        (13.06)         (2.46)        2.17
        Fully Diluted ..................        11.71           9.23        (13.06)         (2.47)        2.16
  Cumulative effect of change
     in accounting principle:
        Primary ........................          --             --          (1.11)           --           -- 
        Fully Diluted ..................          --             --          (1.11)           --           -- 
  Earnings per common share after
     change in accounting principle:
        Primary ........................        11.98           9.23        (14.17)         (2.46)        2.17
        Fully Diluted ..................        11.71           9.23        (14.17)         (2.47)        2.16
  Dividends declared per
     common share ......................          --             --             --            --           -- 

At December 31:
  Total assets .........................       73,994         97,279       115,387        121,779      114,922
  Long-term obligations:
    Long-term debt .....................        3,259          6,487        17,581         19,633       13,918
    Deferred compensation &
       other liabilities ...............        6,929          8,267         4,752          6,666        6,321
</TABLE>


                                       35
<PAGE>
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                     AND RESULTS OF OPERATIONS OF ROSS ROY

                             Results of Operations

     The following  table sets forth certain  Statement of Operations  data as a
percentage of revenue for the periods indicated:

<TABLE>
<CAPTION>
                                                                                               Three Months
                                                        Year Ended December 31                Ended March 31
                                                ------------------------------------        ------------------
                                                 1994           1993          1992           1995        1994
                                                -----          -----         -----          -----        -----
<S>                                             <C>            <C>           <C>            <C>          <C>   
Revenue ..................................      100.0%         100.0%        100.0%         100.0%       100.0%
Operating Expenses .......................      (87.1)        (105.1)       (108.0)         (81.1)       (82.7)
Operating Income (Loss) ..................       12.9%          (5.1)%        (8.0)%         18.9%        17.3%
Other Income (Expense):
  Interest expense .......................       (1.8)          (2.0)         (2.0)          (1.1)        (1.7)
  Interest income ........................         .3             .3            .5             .2           .7
  Life insurance proceeds and other ......         --           10.6           (.7)            --           --
Income (loss) before taxes ...............       11.4%           3.8%        (10.2)%         18.0%        16.3%
(Provision) Credit for taxes:
  Federal and Foreign Income Taxes .......       (4.6)           3.2           3.2           (6.2)        (5.6)
  Single Business Tax ....................        (.8)          (1.0)         (1.0)          (1.3)        (1.3)
Net Income (Loss) Before Minority
  Interest and Change in Accounting
     Principle ...........................        6.0%           6.0%         (8.0)%         10.5%         9.4%
  Minority Interest ......................        (.3)           (.3)          (.2)           (.6)         (.9)
  Change in Accounting Principle .........         --             --           (.7)         (38.9)          --
Net Income (Loss) ........................        5.7%           5.7%         (8.9)%        (29.0)%        8.5%
</TABLE>

Comparison of Results of Operations for the Three Months 
  Ended March 31, 1995 and 1994

     Ross Roy reported  revenues from  commissions and fees of $17.0 million and
net income before  cumulative  effect of change in accounting  principle of $1.7
million for the three  months ended March 31,  1995.  There were no  significant
changes in operations when compared to the same period in 1994.

     In late 1994,  Ross Roy was informed by its major retail client,  Kmart, of
its  decision  to utilize  another  agency.  Ross Roy  expects to  complete  the
transition of its responsibilities to the successor agency in late 1995. The net
revenue and income impact from the loss of this client is not  anticipated to be
significant to the results of operations for 1995.

     Effective  January  1,  1995,  Ross  Roy  adopted  Statement  of  Financial
Accounting  Standards (SFAS) No. 106,  "Accounting for  Postretirement  Benefits
Other Than  Pensions",  which  requires  accrual of retiree health care benefits
during the years the  employees  provide  services.  The impact of the adoption,
recognized as a one-time charge in the year of adoption, is $6.6 million (net of
applicable  income  taxes).  This  amount  was  determined  based  upon  current
assumptions and, accordingly, is different than the one-time charge disclosed in
Ross  Roy's  consolidated   financial   statements  as  of  December  31,  1994.
Implementation of the new Standard has no cash impact on Ross Roy.


Comparison of Results of Operations for the Years Ended 
  December 31, 1994 and 1993

     Revenue -- Ross Roy reported  revenues from  commissions  and fees of $65.7
million in 1994 compared with $79.4 million in 1993. This represented a decrease
of  17.3%  and  is  solely  attributable  to  the  effect  of  Ross  Roy's  1993
divestitures.  As part of a business  strategy that was developed in 1992,  Ross
Roy began divesting or closing all noncore/nonstrategic business units. In 1993,
Ross Roy divested three such units which,  in total,  contributed  approximately
$14 million of revenue in 1993. While on a net basis,  Ross Roy's other business
showed little movement,  its core business experienced  substantial increases in
the areas of telemarketing  and training.  The increased volume in telemarketing
resulted  from the launch of the Eagle  Information  Center for Chrysler and the


                                       36
<PAGE>

Teletouch Program for Chrysler dealers. The increase in training is attributable
to the  development  of a culture and product  training  program for Chrysler in
Europe and the Mideast.  These increases,  however, were offset by the full year
impact of the losses of two clients,  Office Max and Builder's  Square, to which
Ross Roy provided media advertising services.

     Operating Income -- Operating income increased to $8.5 million in 1994 from
a loss of $4.1 million in 1993.  Partially  offsetting the 1994 increase,  was a
special charge of $1.4 million (net of $600,000 of reversals of special  charges
from prior years) which was comprised  primarily of severance  costs  associated
with the loss of its client,  Kmart. In 1993, Ross Roy recorded  special charges
of $8.7 million;  these  charges  included the write-off of fixed assets and the
accrual of lease abandonment  charges and other costs related to the disposition
of three  subsidiaries,  as well as severance  costs incurred  during Ross Roy's
management  reorganization.  As of December 31, 1994, approximately $3.6 million
of the special  charges remain unpaid and will be paid over the next five years.
Other operating expenses, exclusive of the impact of divestitures,  were held to
1993 levels due to diligent cost control efforts.

     Other Income (Expense) -- Interest  expense  decreased by 24.5% in 1994 and
reflects  lower average  borrowings  during the year.  Average  borrowings  were
reduced by the  elimination of the need to fund the operations of business units
that were  divested,  a  modified  stock  repurchase  plan  adopted in 1993 that
provided for the deferral of repurchase payments over a four year period and the
proceeds from certain life  insurance  policies that were received in late 1993.
Ross Roy also  reported in 1993,  approximately  $8.3 million in life  insurance
proceeds that were received upon the death of its former chairman.

     Provision for Taxes -- Ross Roy reported a provision for income taxes of $3
million in 1994 and a credit for income taxes of $2.6 million in 1993.  The 1994
tax  provision  reflects  the  income  tax  liability  on pretax  income of $7.5
million.  In 1993, the credit for income taxes arose from the tax-exempt  status
of the life insurance proceeds received in 1993.

     Change in Accounting  Principle -- Effective  January 1, 1995,  Ross Roy is
required to adopt Statement of Financial  Accounting  Standards  (SFAS) No. 106,
"Accounting for  Postretirement  Benefits Other Than  Pensions,"  which requires
accrual of retiree benefits during the years the employees provide services. The
estimated impact of the adoption will be $2.5 million (net of applicable  income
taxes) if the  transition  obligation is recognized as a one-time  charge in the
year of adoption. Implementation of the new Standard will have no cash impact on
Ross Roy.

Comparison of Results of Operations for the Years 
  Ended December 31, 1993 and 1992

     Revenue -- In 1993, Ross Roy reported revenues from commissions and fees of
$79.4  million  compared  to $86.4  million  in 1992.  This  represents  an 8.0%
decrease from 1992. Approximately fifty percent of this decrease is attributable
to the revenue reduction resulting from the business units that were divested or
closed in 1992.  The remainder of the decrease is due to spending  reductions by
clients  serviced by business  units that were divested in 1993.  While on a net
basis,  Ross Roy's other  business  showed  little  movement,  its core business
experienced a 12% increase in revenue over 1992.  Revenue increased in the areas
of  training,  collateral  services  and rebate and  incentive  programs,  among
others.  Offsetting  these  major  increases,  was the loss of Office Max in mid
1993.

     Operating  Income -- Ross Roy reported an operating loss of $4.1 million in
1993  compared  to a loss of $7.0  million  in 1992.  The  major  source  of the
decrease in the loss, after  considering the impact of divestitures,  was a $1.9
million  reduction  in the  amount of  special  charges  and  asset  write-downs
recorded in 1993 as compared to 1992. In 1993, Ross Roy recorded special charges
of $8.7  million for expenses  related to the  divestitures.  In 1992,  Ross Roy
recorded  special charges of $10.6 million.  These charges included $4.4 million
for the impairment of intangible  assets and a charge of $6.2 million  resulting
from the  accrual of costs and asset  write-downs  associated  with  divested or
closed  subsidiaries  and the write-off of a note receivable that was determined
to  be  uncollectible.  After  considering  the  impact  of  divestitures,  1993
operating  expenses decreased by approximately $1.7 million from 1992 levels due
to the  elimination  of a profit  sharing  contribution  and a reduction  in the
amount of incentive compensation paid in 1993.


                                       37
<PAGE>

     Other Income (Expense) -- Interest  expense  decreased by 8.5% in 1993 when
compared to 1992.  This decrease  reflects  lower average  borrowings  and lower
interest rates on borrowings. Average borrowings were reduced by the elimination
of the need to fund the operations of the business  units that were divested,  a
modified  stock  repurchase  plan that  provides for the deferral of  repurchase
payments  over a four year period and the proceeds  from certain life  insurance
policies that were  received in late 1993.  The interest rate on Ross Roy's bank
debt is tied to the prime rate. The reduction in its borrowing rate was due to a
reduction of the prime rate. In 1993, Ross Roy also reported  approximately $8.3
million in life insurance proceeds upon the death of its former chairman.

     Provision  for Taxes -- Ross Roy reported a credit for income taxes of $2.6
million and $2.8  million in 1993 and 1992,  respectively.  Although the amounts
are similar,  they arose for different  reasons.  In 1993, the credit arose from
the tax-exempt status of the life insurance  proceeds received in 1993. In 1992,
the credit arose from the federal  income tax benefits  that will result in Ross
Roy's ability to reduce the taxation of future profits by the amount of its 1992
operating losses.

     Change in  Accounting  Principle  --  Effective  January 1, 1992,  Ross Roy
adopted  SFAS No.  109,  "Accounting  for  Income  Taxes,"  which  required  the
liability  method of accounting for deferred income taxes and the recognition of
net deferred tax assets subject to an ongoing  assessment of  realizability.  At
January 1, 1992, the adjustment of deferred tax assets and liabilities  resulted
in an  unfavorable  cumulative  effect of the change in accounting  principle of
approximately $600,000.

                        Capital Resources and Liquidity

     Cash and  equivalents at March 31, 1995 increased to $2.4 million from $1.9
million at December 31,  1994.  This  increase is due to the positive  cash flow
attributable  to net stock  sales  partially  offset by the  paydown  of certain
year-end liabilities and payments of stock repurchase obligations.

     Cash and cash equivalents decreased  approximately  $300,000 during 1994 or
to a level of $1.9 million at December 31,  1994.  Ross Roy's  positive net cash
flow  provided  by  operating  activities  was  offset by cash  outlays  for the
purchase of Ross Roy's stock net of stock  sales,  payments of stock  repurchase
obligations,  expenditures  for  property  and  equipment  and  repayment of its
long-term debt obligations.

     At December 31, 1994,  accounts  receivable  decreased by $16.4 million and
accounts payable decreased by $17.8 million from December 31, 1993 levels.  This
decrease was primarily due to divestitures and differences in the dates on which
payments were made to media and other suppliers in 1994 compared to 1993.

     Capital  expenditures  for 1993,  1994 and the three months ended March 31,
1995, were $479,000, $850,000 and $30,000, respectively. These expenditures were
made primarily to expand, upgrade or replace the computer equipment and software
used for telemarketing, database management, desktop publishing, fulfillment and
to a smaller  extent,  general office  administration.  Capital  expenditures of
approximately  $1 million  are  planned  for 1995.  The  majority of the planned
spending  is  for  telemarketing,   database   management  and  internal  office
automation and should improve the efficiency and  productivity  of  client-based
applications as well as Ross Roy's administrative functions.

     As of December  31,  1994,  Ross Roy had  approximately  $11 million of net
operating loss and capital loss carryforwards,  subject to certain  limitations,
that it will use to offset future  federal income tax  liabilities.  The Company
anticipates the utilization of a portion of its loss carryforwards in 1995.

     Ross Roy maintains a $20 million revolving line of credit with a bank which
is secured by the majority of Ross Roy's assets.  At March 31, 1995 and December
31, 1994,  respectively,  Ross Roy had $13.1 million and $17.8 million available
to borrow. The line of credit agreement  contains certain covenants  including a
minimum tangible net worth requirement with which Ross Roy was not in compliance
as of December 31, 1994. The bank  subsequently  amended the agreement to adjust
this  covenant  whereby Ross Roy was in  compliance.  Ross Roy was in compliance
with all covenants as of March 31, 1995.

     Ross Roy's  management  believes  that its cash  position and the available
line of credit are adequate to support Ross Roy's  short-term cash  requirements
for the maintenance of working capital and the acquisition of computer and other
capital  equipment  required  to maintain  its  competitive  advantage.  It also
anticipates that its current cash position,  together with the future cash flows
from operations and funds available under its existing facility will be adequate
to meet its long-term cash requirements as presently contemplated.


                                       38
<PAGE>

                      DESCRIPTION OF OMNICOM CAPITAL STOCK

     Each share of Omnicom  Common Stock entitles the holder thereof to one vote
on all matters submitted to a vote of shareholders. All shares of Omnicom Common
Stock have equal rights and are entitled to such dividends as may be declared by
the Board of  Directors  out of funds  legally  available  therefor and to share
ratably  upon   liquidation  in  the  assets   available  for   distribution  to
stockholders.  Omnicom is not aware of any restrictions on its present or future
ability  to  pay  dividends.  However,  in  connection  with  certain  borrowing
facilities  entered into by Omnicom and its subsidiaries,  Omnicom is subject to
certain restrictions on current ratio, ratio of total consolidated  indebtedness
to total  consolidated  capitalization,  ratio of net cash flow to  consolidated
indebtedness,  and  limitation of  investments  in and loans to  affiliates  and
unconsolidated subsidiaries.  The Omnicom Common Stock is not subject to call or
assessment,  has no preemptive conversion or cumulative voting rights and is not
subject  to  redemption.  Omnicom's  shareholders  elect a  classified  board of
directors,  and may not remove a director  except by an  affirmative  two-thirds
vote of all outstanding shares. A two-thirds vote is also required for Omnicom's
shareholders  to amend  Omnicom's  by-laws or certain  provisions of its charter
documents, and to change the number of directors comprising the full board.

     Omnicom may issue Omnicom  Preferred Stock in series having whatever rights
and  preferences  the Board of Directors  may  determine.  One or more series of
Omnicom  Preferred  Stock may be made  convertible  into Omnicom Common Stock at
rates determined by the Board of Directors,  and Omnicom  Preferred Stock may be
given priority over the Omnicom Common Stock in payment of dividends,  rights on
liquidation,  voting and other rights. Omnicom has no current plans to issue any
Omnicom Preferred Stock. Omnicom Preferred Stock may be issued from time to time
upon  authorization  of the Omnicom  Board of  Directors  without  action of the
shareholders.

     Omnicom  currently  has  outstanding  $143,750,000  of  4.5%/6.25%  Step-Up
Convertible Subordinated Debentures with a scheduled maturity in 2000, which are
convertible into Omnicom Common Stock at a conversion  price of $54.88,  subject
to adjustment in certain events.

     Chemical  Bank,  450 West  33rd  Street,  New York,  New York  10001 is the
transfer agent and the registrar of the Omnicom Common Stock.

                     DESCRIPTION OF ROSS ROY CAPITAL STOCK

     Ross Roy has an authorized capitalization consisting of 2,000,000 shares of
Class A Common Stock,  par value $1.00 per share,  of which as of June 15, 1995,
[348,453]  were issued and  outstanding,  and  200,000  shares of Class B Common
Stock,  par value $1.00 per share,  of which as of June 15, 1995,  54,800 shares
were issued and outstanding.

     Except as  otherwise  provided by law,  the shares of Class A Common  Stock
have no voting  rights.  Each share of Class B Common Stock  entitles the holder
thereof to one vote on all  matters  submitted  to a vote of  shareholders.  All
shares of Class A and Class B Common  Stock have equal  rights in the payment of
dividends,  and the  registered  holders  thereof are  entitled to receive  such
dividends  as may  from  time  to time  be  legally  declared  by the  Board  of
Directors.  In connection with certain borrowing facilities entered into by Ross
Roy and its  subsidiaries,  Ross Roy is  restricted  from  paying any  dividends
without  consent of certain  lenders.  In connection  with those same  borrowing
facilities,  Ross Roy is further subject to certain restrictions on consolidated
tangible net worth, funded debt to consolidated  tangible net worth ratio, fixed
charge  coverage,  and cash  redemption  coverage.  Ross Roy Common Stock is not
subject to any call or assessment and has no preemptive conversion or cumulative
voting  rights.  In the event of  dissolution,  liquidation  or winding up, each
share of Class A Common  Stock and each share of Class B Common  Stock has equal
rights with all other shares of Class A Common Stock and Class B Common Stock in
the distribution of the assets of the  corporation.  The shares of each class of
authorized  but  unissued  Common  Stock  may  be  issued  and/or  sold  by  the
corporation  only to  employees  of Ross Roy. The shares of each class of Common
Stock after  original  sale and issue to an employee  may be sold,  assigned and
delivered  to Ross Roy only.  Whenever  a  registered  holder of either  Class A
Common  Stock or Class B Common  Stock  ceases to be an active  employee of Ross
Roy, the holder must sell, assign and deliver all shares of Class A Common Stock
and Class B Common Stock  registered in the holder's name to Ross Roy which must
purchase such stock at a formula  repurchase  price as described in the Ross Roy
Articles.


                                       39
<PAGE>

                        COMPARISON OF SHAREHOLDER RIGHTS

     Upon  consummation of the Merger,  the shareholders of Ross Roy, a Michigan
corporation,  will become  shareholders of Omnicom, a New York corporation,  and
their  rights as such will be  governed  by New York law, as well as the Omnicom
Certificate  of  Incorporation  (the  "Omnicom  Certificate")  and By-laws  (the
"Omnicom By-laws") as amended from time to time in accordance with New York law.
While it is not  practical  to  describe  all  changes in the rights of Ross Roy
Shareholders  that will result from the  application  of New York law in lieu of
Michigan law and the differences between the Omnicom Certificate and the Omnicom
By-laws and the Ross Roy Articles of Incorporation ("Ross Roy Articles") and the
Ross Roy  By-laws  (the  "Ross Roy  By-laws"),  the  following  is a summary  of
material differences.

     References  to the "NYBCL" are to the New York  Business  Corporation  Law,
while references to the "MBCA" are to the Michigan Business Corporation Act.

Special Meetings of Shareholders

     Under Michigan law, a special meeting of shareholders  may be called by the
board of directors or by officers,  directors or shareholders as may be provided
in the  by-laws.  The  Ross  Roy  By-laws  provide  that a  special  meeting  of
shareholders may be called by the Board of Directors, the Chairman of the Board,
the  President or the Chief  Executive  Officer and shall be called by the Board
upon  the  written  request  of the  holders  of  record  of a  majority  of the
outstanding  shares entitled to vote at the meeting  requested to be called.  In
addition,  under the MBCA, upon  application of the holders of not less than 10%
of all the shares entitled to vote at a meeting, the circuit court of the county
in which the principal place of business or registered office of the corporation
is located, for good cause shown, may order a special meeting of shareholders to
be  called  and held at such  time  and  place,  upon  such  notice  and for the
transaction of such business as may be designated in the order.

     Under New York law, a special meeting of shareholders  may be called by the
board of directors  and by such person or persons as may be  authorized to do so
in the  certificate  of  incorporation  or by-laws.  In  addition,  if an annual
shareholder  meeting  has not  been  held  for a  certain  period  of time and a
sufficient  number of directors  were not elected to conduct the business of the
corporation,  the  board  shall  call a  special  meeting  for the  election  of
directors.  If the board fails to do so, or sufficient directors are not elected
within a certain  period,  holders of 10% of the shares  entitled  to vote in an
election  of  directors  may call a special  meeting for such an  election.  The
Omnicom By-laws  provide that a special  meeting of shareholders  may be called,
for any purpose or purposes,  by the Board of Directors or by the President,  or
by the  Secretary  upon the  request  of a majority  of the Board of  Directors.

Removal of Directors

     Under the MBCA, the shareholders may remove one or more directors,  with or
without cause,  unless the articles of incorporation  provide that directors may
be removed only for cause. The vote for removal shall be by a majority of shares
entitled to vote at an  election  of  directors  except  that the  articles  may
require a higher  vote for  removal  without  cause.  The MBCA also  allows,  in
certain  circumstances,  for by-law  provisions to modify the statutory  removal
provisions.  The Ross Roy By-laws  provide  that a director  may be removed from
office for any reason:  (i) by a two-thirds vote of the full board in attendance
and voting at any  meeting,  but not by less than a majority of the entire board
then in office,  or (ii) by a vote of the holders of  two-thirds  of the capital
stock  then  outstanding  and  entitled  to vote,  at a special  meeting  of the
shareholders called for that purpose.

     Under New York law, (i) shareholders may remove any director for cause, and
the  certificate or provision of a by-law adopted by the  shareholders  may give
the board  such  right;  (ii) if the  certificate  or the  by-laws  so  provide,
shareholders may remove directors without cause; and (iii) an action to remove a
director for cause may be brought by the  attorney-general  or by the holders of
ten percent of the outstanding shares,  whether or not entitled to vote. Neither
the Omnicom  Certificate nor the Omnicom By-Laws permit the removal of directors
other than for cause. 

Vacancies On The Board

     Under  Michigan  law,   unless   otherwise   limited  in  the  articles  of
incorporation,  any vacancy on the board (including  vacancies resulting from an
increase in the number of directors)  may be filled by the  shareholders  or the


                                       40
<PAGE>

Board. If the directors remaining in office constitute fewer than a quorum, they
may fill the vacancy by the affirmative  vote of a majority of all the directors
remaining in office. Under the Ross Roy By-laws,  vacancies on the Board for any
reason  (including  vacancies  resulting  from  an  increase  in the  number  of
directors)  may be filled by vote of a majority of the directors then in office.
A director  elected to fill a vacancy shall be elected to hold office only until
the next election of directors by the shareholders.

     Under New York law, newly created directorships  resulting from an increase
in the number of directors and  vacancies  occurring in the board for any reason
except  the  removal  of  directors  without  cause may be filled by vote of the
board.  However,  the certificate of  incorporation  or by-laws may provide that
such newly  created  directorships  or vacancies are to be filled by vote of the
shareholders.  Unless the certificate of incorporation or the specific provision
of a  by-law  adopted  by the  shareholders  provide  that  the  board  may fill
vacancies  occurring in the board by reason of the removal of directors  without
cause, such vacancies may be filled only by vote of the shareholders. A director
elected to fill a vacancy, unless elected by the shareholders,  will hold office
until the next meeting of  shareholders at which the election of directors is in
the regular  order of business and until his or her  successor  has been elected
and qualified. The Omnicom By-laws provide that any vacancy in the Omnicom Board
may  be  filled  by a  majority  vote  of  the  remaining  directors  or by  the
shareholders.

Classification of the Board of Directors

     Ross Roy's Board of Directors is not classified into classes.

     Omnicom's  Certificate of  Incorporation  provides that directors are to be
classified into three classes,  which are to hold office in staggered three-year
terms.

Books and Records; Inspection

     Under Michigan law, any person who is a shareholder of record has the right
to  examine,  for any  purpose  reasonably  related to his or her  interest as a
shareholder,  a list of the  corporation's  shareholders and its other books and
records.  Shareholders are also entitled to receive, upon written request: (i) a
balance sheet of the  corporation at the end of the preceding  fiscal year, (ii)
an  income  statement  for  the  fiscal  year,  and  (iii)  if  prepared  by the
corporation,  its  statement of source and  application  of funds for the fiscal
year.

     Under New York law, only shareholders of record for at least six months and
any person or the  authorized  agent of any  person or persons  holding at least
five  percent of any class of the  outstanding  shares have the right to examine
the  minutes of a  corporation  and the right to receive  upon  request  certain
financial  statements of the  corporation.  Under the federal  securities  laws,
shareholders  of  Omnicom  receive  financial  information   substantially  more
extensive than that required under New York law.

Amendments of the Articles/Certificate of Incorporation

     Under Michigan law, an amendment to the articles of incorporation  requires
an  affirmative  vote of a majority of the  outstanding  stock  entitled to vote
thereon,  and a majority of the outstanding stock of each class entitled to vote
as a class thereon.  Whether or not entitled by the articles, the holders of the
outstanding  shares of a class are  entitled to vote on a proposed  amendment if
the  amendment  would  increase or decrease the  aggregate  number of authorized
shares of such  class or alter or change  the  powers,  preferences  or  special
rights of such class so as to affect the class adversely.  The Ross Roy Articles
do not provide for any voting rights for the holders of Class A Common Stock.

     Under  New  York  law,  an  amendment  or  change  of  the  certificate  of
incorporation  may be authorized  by vote of the Board,  followed by vote of the
holders  of a majority  of all  outstanding  shares  entitled  to vote  thereon.
Certain  categories  of  amendments  which  adversely  affect  the rights of any
holders of shares of a class or series of stock require the affirmative  vote of
the  holders of a majority  of all  outstanding  shares of such class or series,
voting separately.  The Omnicom Certificate  requires the affirmative vote of 66
2/3% of the voting power of all outstanding shares of voting stock of Omnicom in
order to amend or repeal the provisions of the Omnicom  Certificate  setting the
number of directors  constituting the entire Board of Directors and dividing the
directors into classes, and absolving directors from personal liability pursuant
to Section 719 of the NYBCL.


                                       41
<PAGE>

Amendments to By-Laws

     Under  Michigan law, the by-laws of a corporation  generally may be amended
or repealed by the  affirmative  vote of the holders of a majority of the shares
entitled to vote thereon.  The Ross Roy By-laws  provide that the By-laws may be
amended,  altered  or  repealed  by  the  affirmative  vote  of the  holders  of
two-thirds of the shares entitled to vote thereon,  or by the Board of Directors
by a majority vote of the members of the Board then in office.

     Under New York law,  except as  otherwise  provided in the  certificate  of
incorporation,  by-laws  may be  amended,  repealed or adopted by the holders of
shares entitled to vote in the election of any director. When so provided in the
certificate of  incorporation or a by-law adopted by the  shareholders,  by-laws
may also be  amended,  repealed  or  adopted by the board by such vote as may be
therein  specified,  which may be greater than the vote otherwise  prescribed by
law,  but any by-law  adopted by the board may be  amended  or  repealed  by the
shareholders  entitled  to  vote  thereon.   Under  the  terms  of  the  Omnicom
Certificate and Omnicom  By-laws,  Omnicom  By-laws may be amended,  repealed or
adopted  only by the  affirmative  vote of at least 66 2/3% of the total  voting
power of all outstanding shares of voting stock of Omnicom.

Dividends and Distributions

     Under  Michigan law, no  distribution  to a shareholder  (i.e., a dividend,
repurchase of stock, or other payment to a shareholder in his or her capacity as
such) may be made if, after giving effect to the  distribution,  the corporation
would not be able to pay its  debts as they  become  due in the usual  course of
business,  or the  corporation's  total assets would be less than the sum of its
total liabilities  plus,  unless the articles permit otherwise,  the amount that
would be needed,  if the  corporation  were to be  dissolved  at the time of the
distribution,  to satisfy the  preferential  rights  that are  superior to those
receiving the distribution.

     Under  New  York  law,   dividends  may  be  declared  or  paid  and  other
distributions  may be made out of  surplus  only,  so that the net assets of the
corporation  remaining after such  declaration,  payment or distribution must at
least equal the amount of its stated  capital.  When any dividend is paid or any
other  distribution  is made from sources other than earned  surplus,  a written
notice must accompany such payment or  distribution  as provided by the NYBCL. A
corporation  may declare and pay  dividends or make other  distributions  except
when currently the  corporation is insolvent or would thereby be made insolvent,
or when the  declaration,  payment  or  distribution  would be  contrary  to any
restrictions contained in the corporation's certificate of incorporation.

State Takeover Legislation

     Chapters  7A and 7B of the MBCA  affect  attempts  to  acquire  control  of
Michigan  corporations.  In general,  under Chapter 7A, "business  combinations"
(defined to include, among other transactions,  certain mergers, dispositions of
assets  or shares  and  recapitalizations)  between  covered  Michigan  business
corporations or their subsidiaries and an "interested  shareholder"  (defined as
the direct or indirect beneficial owner of at least 10% of the voting power of a
covered corporation's outstanding shares) can be consummated only if approved by
at least 90% of the votes of each class of the corporation's  shares entitled to
vote and by at least two-thirds of such voting shares not held by the interested
shareholder  or such  shareholder's  affiliates,  unless five years have elapsed
after the person involved became an "interested  shareholder" and unless certain
price and other  conditions  are  satisfied.  The  Board  may  exempt  "business
combinations" with a particular  "interested  shareholder" by resolution adopted
prior to the time the "interested shareholder" attained the status.

     In general,  under Chapter 7B of the MBCA, an entity that acquires "Control
Shares" of a  corporation  may vote the  Control  Shares on any matter only if a
majority of all  shares,  and of all  non-"Interested  Shares," of each class of
shares  entitled  to vote as a class,  approve  such voting  rights.  Interested
Shares are shares owned by officers,  employees or directors of the  corporation
and the entity making the Control Share  Acquisition.  Control Shares are shares
that,  when added to shares  already  owned by an entity,  would give the entity
voting  power  in the  election  of  directors  over  any of  three  thresholds:
one-fifth,  one-third and a majority.  The effect of the statute is to condition
the acquisition of voting control of a corporation on the approval of a majority
of the  pre-existing  disinterested  shareholders.  The Board has the  option of
choosing to amend the  corporation's  by-laws before a Control Share Acquisition
occurs to provide that Chapter 7B does not apply to the corporation.

     The NYBCL prohibits any business  combination (defined to include a variety
of transactions,  including  mergers,  consolidations,  sales or dispositions of
assets, issuances of stock,  liquidations,  reclassifications and the receipt of


                                       42
<PAGE>

certain  benefits from the  corporation,  including  loans or guarantees)  with,
involving or proposed by any interested  shareholder  (defined  generally as any
person who, (i)  directly or  indirectly,  beneficially  owns 20% or more of the
outstanding  voting stock of a resident domestic New York corporation or (ii) is
an affiliate or associate of such resident domestic  corporation and at any time
within the past five years was a beneficial  owner of 20% or more of such stock)
for a period of five years  after the date on which the  interested  shareholder
became  such.  After  such  five-year  period a business  combination  between a
resident  domestic  New York  corporation  and such  interested  shareholder  is
prohibited  unless either  certain "fair price"  provisions are complied with or
the business  combination  is approved by a majority of the  outstanding  voting
stock not beneficially owned by such interested shareholder or its affiliates or
associates.  The NYBCL exempts from its  prohibitions  any business  combination
with an interested shareholder if such business combination,  or the purchase of
stock by the interested shareholder that caused such shareholder to become such,
is  approved  by the  board  of  directors  of the  resident  domestic  New York
corporation prior to the date on which the interested shareholder becomes such.

     Under the NYBCL,  corporations  may opt to not be governed by the  statute;
Omnicom has not so elected.

Business Combinations

     Generally,  under  the  MBCA,  the  affirmative  vote of the  holders  of a
majority of the outstanding shares entitled to vote on the matter is required to
approve mergers,  consolidations,  and any sales,  leases or exchanges of all or
substantially all of the assets of a corporation.

     Under the NYBCL,  the affirmative  vote of the holders of two-thirds of all
outstanding  shares of stock of a New York corporation  entitled to vote thereon
is  required  to approve  mergers  and  consolidations,  and for sales,  leases,
exchanges  or other  dispositions  of all or  substantially  all the assets of a
corporation, if not made in the usual or regular course of the business actually
conducted by such corporation.

Rights of Dissenting Shareholders

     Under the MBCA,  a  shareholder  is  entitled to dissent  from,  and obtain
payment of the fair value of his or her shares in the event of, certain mergers,
share  exchanges,  a sale  or  exchange  of all  (or  substantially  all) of the
property of the corporation,  certain amendments to the articles which adversely
affect the  shareholder,  certain  share  issuances in  connection  with certain
acquisitions,  certain "control share acquisitions," and other corporate actions
(to the  extent  the  articles  so  provide).  The MBCA  also  provides  various
exceptions to dissenter's rights,  including  transactions  wherein shareholders
are to receive  shares  listed on a national  securities  exchange  (such as the
merger  of  OmniSub  into  Ross  Roy).  Accordingly,  in the  transaction  being
submitted for approval by the Ross Roy  shareholders,  the  shareholders  do not
have dissenters' rights.

     Shareholders of a New York  corporation  have the right to dissent not only
in the  context of a merger or  consolidation,  but also in the event of certain
amendments or changes to the certificate of  incorporation  adversely  affecting
their  shares,  certain  sales,  exchanges  or  other  dispositions  of  all  or
substantially all of the corporation's assets and certain share exchanges.

Indemnification of Directors, Officers and Employees

     The  MBCA  generally  provides  that a  corporation  may,  and  in  certain
circumstances,  must,  indemnify  any person who is or was  threatened  with any
action,  suit or  proceeding  by  reason  of the fact that he or she is or was a
director, officer, employee or agent of such corporation for expenses, judgments
or  settlements  actually and  reasonably  incurred by such person in connection
with suits and other legal  action or  proceedings  if such person acted in good
faith and in a manner he or she  reasonably  believed to be in or not opposed to
the best interests of the  corporation  and, with respect to any criminal action
or  proceeding,  had no reasonable  cause to believe their conduct was unlawful.
Unless  indemnification  is ordered by a court,  the  determination of whether a
director,  officer, employee or agent has met the applicable standard of conduct
is made (i) by a majority vote of a quorum of the board  consisting of directors
who are not parties or  threatened  to be made  parties to the  action,  suit or
proceeding, (ii) if a quorum cannot be obtained under (i), by majority vote of a
committee  duly  designated  by the board and  consisting  solely of two or more
directors  not at the time  parties  or  threatened  to be made  parties  to the
action,  suit or  proceeding,  (iii) by  independent  legal counsel in a written
opinion,  (iv) by all independent directors who are not parties or threatened to


                                       43
<PAGE>

be made parties to the action,  suit or proceeding,  or (v) by the  shareholders
(but shares held by directors,  officers, employees or agents who are parties or
threatened  to be made  parties to the  action,  suit or  proceeding  may not be
voted).  The MBCA also permits a corporation  to advance  expenses to directors,
officers  and  others  upon a  determination  of  eligibility,  so  long  as the
requesting  party  undertakes to repay the amounts  advanced if it is ultimately
determined that the party was not entitled to be indemnified. The aforementioned
provisions  relating to  indemnification  and  advancement  of expenses  are not
exclusive  and a  corporation  may provide  additional  rights to those  seeking
indemnification  or  advancement of expenses.  The Ross Roy By-laws  provide for
indemnification  of  directors,  officers,  employees  and agents to the fullest
extent authorized under the MBCA.

     Under  Section 722 of the NYBCL,  a  corporation  may  indemnify any person
made, or threatened to be made, a party to any action or proceeding,  except for
shareholder  derivative  suits,  by  reason  of the  fact  that  he or she was a
director or officer of the corporation,  provided such director or officer acted
in good faith for a purpose  which he or she  reasonably  believed  to be in the
best interests of the corporation and, in criminal proceedings, in addition, had
no reasonable  cause to believe his or her conduct was unlawful.  In the case of
shareholder derivative suits, the corporation may indemnify any person by reason
of the fact that he or she was a director or officer of the corporation if he or
she acted in good faith for a purpose which he or she reasonably  believed to be
in the best interests of the corporation,  except that no indemnification may be
made in respect of (i) a threatened action, or a pending action which is settled
or otherwise  disposed  of, or (ii) any claim,  issue or matter as to which such
person has been adjudged to be liable to the corporation, unless and only to the
extent  that the court in which the  action  was  brought,  or, if no action was
brought, any court of competent jurisdiction,  determines upon application that,
in  view of all  the  circumstances  of the  case,  the  person  is  fairly  and
reasonably  entitled to indemnity for such portion of the settlement  amount and
expenses as the court deems proper.

     The  indemnification  described  above under the NYBCL is not  exclusive of
other  indemnification  rights to which a director or officer  may be  entitled,
whether  contained in the  certificate  of  incorporation  or by-laws,  or, when
authorized  by  (i)  such  certificate  of  incorporation  or  by-laws,  (ii)  a
resolution  of  shareholders,  (iii)  a  resolution  of  directors,  or  (iv) an
agreement providing for such  indemnification,  provided that no indemnification
may be made to or on behalf of any  director  or officer if a judgment  or other
final  adjudication  adverse to the director or officer  establishes that his or
her acts were committed in bad faith or were the result of active and deliberate
dishonesty and were material to the cause of action so  adjudicated,  or that he
or she personally  gained in fact a financial profit or other advantage to which
he or she was not legally entitled.

     Any  person  who has been  successful  on the  merits or  otherwise  in the
defense  of a civil  or  criminal  action  or  proceeding  will be  entitled  to
indemnification. Except as provided in the preceding sentence, unless ordered by
a court pursuant to the NYBCL, any  indemnification  under the NYBCL pursuant to
the above  paragraphs  may be made only if  authorized  in the specific case and
after a finding  that the  director  or officer  met the  requisite  standard of
conduct (i) by the disinterested  directors if a quorum is available, or (ii) in
the event a quorum of disinterested  directors is not available or so directs by
either (A) the board upon the written opinion of independent  legal counsel,  or
(B) by the shareholders.

     The Omnicom By-laws provide that Omnicom shall provide  indemnification  to
its directors and officers in respect of claims,  actions,  suits or proceedings
based  upon,  arising  from,  relating to or by reason of the fact that any such
director or officer  serves or served in such  capacity  with  Omnicom or at the
request  of Omnicom  in any  capacity  with any other  enterprise,  and  permits
Omnicom to  indemnify  others  and to advance  expenses  to the  fullest  extent
permitted by law.

     Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors,  officers or persons  controlling Omnicom or Ross
Roy  pursuant  to the  foregoing  provisions,  Omnicom  and Ross  Roy have  been
informed that in the opinion of the SEC such  indemnification  is against public
policy as expressed in the Securities Act and is therefore unenforceable.

Limitation of Personal Liability of Directors

     The MBCA permits a corporation to include in its articles of  incorporation
a provision that would eliminate a director's monetary liability for breaches of
his or her fiduciary duty in a lawsuit by or on behalf of the  corporation or in
an action by stockholders of the  corporation,  provided that such provision may
not  eliminate  or limit the  liability  of a director (i) for any breach of the


                                       44
<PAGE>

director's  duty of  loyalty,  (ii) for acts or  omissions  not in good faith or
which involve  intentional  misconduct or a knowing  violation of law, (iii) for
unlawful  payments of dividends or stock purchases or  redemptions,  or (iv) for
any transaction  from which the director derived an improper  personal  benefit.
The Ross Roy Articles  contain such a provision  providing for the limitation of
liability of directors  for monetary  damages for breach of fiduciary  duty as a
director to the fullest extent permitted by the MBCA.

     Section  402(b) of the NYBCL provides that a  corporation's  certificate of
incorporation  may contain a provision  eliminating  or  limiting  the  personal
liability of directors to the  corporation or its  shareholders  for damages for
any breach of duty in such capacity. However, no such provision can eliminate or
limit  (i)  the  liability  of  any  director  if  a  judgment  or  other  final
adjudication  adverse to such director  establishes that such director's acts or
omissions  were in bad faith,  or involved  intentional  misconduct or a knowing
violation  of law, or that the  director  personally  gained in fact a financial
profit or other  advantage to which such  director  was not legally  entitled or
that the director's  acts violated  certain  provisions of the NYBCL or (ii) the
liability of any director for any act or omission  prior to the adoption of such
a provision in the certificate of incorporation.

     The  Omnicom  Certificate  provides  that no director  shall be  personally
liable to Omnicom or any of its  shareholders for damages for any breach of duty
as a director,  except for  liability  resulting  from a judgment or other final
adjudication  adverse to the  director (i) for acts or omissions in bad faith or
which involve intentional misconduct or a knowing violation of the law, (ii) for
any  transaction  from which the  director  derived a financial  profit or other
advantage to which the director was not legally entitled, or (iii) under Section
719 of the NYBCL.

                                 LEGAL MATTERS

     The legality of the issuance of the Common Stock to be issued in the Merger
will be passed upon by Davis & Gilbert, 1740 Broadway, New York, New York 10019,
counsel to Omnicom.

                                    EXPERTS

     The  consolidated  financial  statements  and  schedules of Omnicom and its
subsidiaries incorporated by reference in this Prospectus/Information  Statement
and the Registration Statement of which this Prospectus/Information Statement is
a part have been audited by Arthur Andersen LLP, independent public accountants,
as indicated in their reports with respect  thereto,  and are included herein in
reliance upon the authority of said firm as an expert in giving said reports

     The  consolidated  financial  statements  of  Ross  Roy  contained  in this
Prospectus/Information  Statement and the  Registration  Statement of which this
Prospectus/Information  Statement  is a part have been  audited  by  Deloitte  &
Touche LLP,  independent public accountants,  as indicated in their reports with
respect thereto,  and are included herein in reliance upon the authority of said
firm as an expert in giving said reports.


                                       45
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

                               TABLE OF CONTENTS

                                                                           Page
                                                                           ----
Independent Auditors' Report ............................................   F-1

Consolidated Balance Sheets as of December 31, 1994 and 1993 ............   F-2

Consolidated Statements of Operations for each of the three years
     in the period ended December 31, 1994 ..............................   F-3

Consolidated Statements of Stockholders' Equity for each of the three
      years in the period ended December 31, 1994 .......................   F-4

Consolidated Statements of Cash Flows for each of the three years
     in the period ended December 31, 1994 ..............................   F-5

Notes to Consolidated Financial Statements ..............................   F-6

Consolidated Condensed Balance Sheets as of
     March 31, 1995 and 1994 (unaudited) ................................  F-13

Consolidated Condensed Statements of Operations for the three months ended
     March 31, 1995 and 1994 (unaudited) ................................  F-14

Consolidated Condensed Statements of Cash Flows for the three months ended
     March 31, 1995 and 1994 (unaudited) ................................  F-15

Notes to Consolidated Condensed Financial Statements (unaudited) ........  F-16

<PAGE>
                          INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Shareholders of
Ross Roy Communications, Inc.
Bloomfield Hills, Michigan

     We have audited the  accompanying  consolidated  balance sheets of Ross Roy
Communications, Inc. (formerly known as Ross Roy Group, Inc.) as of December 31,
1994  and  1993,  and  the  related   consolidated   statements  of  operations,
stockholders'  equity and cash  flows for each of the three  years in the period
ended  December  31,  1994.  These  consolidated  financial  statements  are the
responsibility of the Corporation's management. Our responsibility is to express
an opinion on these financial statements based on our audits.

     We conducted  our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

     In our opinion,  such consolidated  financial statements present fairly, in
all material respects,  the financial position of the Corporation as of December
31, 1994 and 1993, and the results of its operations and its cash flows for each
of the three years in the period  ended  December  31, 1994 in  conformity  with
generally accepted accounting principles.

     As discussed in Note 7 to the consolidated financial statements,  effective
January 1, 1992,  the  Corporation  changed its method of accounting  for income
taxes to conform with Statement of Financial Accounting Standards No. 109.


Deloitte & Touche LLP

March 9, 1995


                                      F-1
<PAGE>
                         ROSS ROY COMMUNICATIONS, INC.

                          CONSOLIDATED BALANCE SHEETS
                           December 31, 1994 and 1993
<TABLE>
<CAPTION>

                                                     ASSETS                   1994            1993
                                                                          ------------    ------------
<S>                                                                       <C>             <C>
Current assets:
   Cash and cash equivalents (including restricted cash
      of $1,768,000 in 1994 and $220,000 in 1993) .....................   $  1,863,032    $  2,181,338
   Accounts receivable, net of allowance for doubtful accounts
      of $278,000 in 1994 and $193,000 in 1993 ........................     45,376,263      61,737,403
   Billable production in process .....................................      2,670,213       3,193,914
   Refundable income taxes ............................................        124,243       2,116,965
   Deferred taxes .....................................................        709,000         264,000
   Prepaid expenses and other .........................................      1,414,400       3,015,724
                                                                          ------------    ------------
            Total current assets ......................................     52,157,151      72,509,344
Property and equipment:
   Leasehold improvements .............................................      6,535,968       6,322,404
   Furniture and equipment ............................................     11,466,995      11,355,901
                                                                          ------------    ------------
            Total .....................................................     18,002,963      17,678,305
   Less accumulated depreciation and amortization .....................     (9,156,723)     (8,401,429)
                                                                          ------------    ------------
            Net property and equipment ................................      8,846,240       9,276,876
Other assets:
   Cash value of life insurance, less policy loans
      of $2,018,000 in 1994 and $2,592,000 in 1993 ....................        620,708       1,109,825
   Notes receivable ...................................................        179,283         201,445
   Cost of purchased assets in excess of fair value, net of accumulated
      amortization of $276,000 in 1994 and $264,000 in 1993 ...........        512,663         780,281
   Deferred taxes .....................................................           --         2,786,000
   Prepaid pension asset and other ....................................     11,678,228      10,615,045
                                                                          ------------    ------------
            Total other assets ........................................     12,990,882      15,492,596
                                                                          ------------    ------------
            Total assets ..............................................   $ 73,994,273    $ 97,278,816
                                                                          ============    ============

                                 LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
   Current portion of long-term debt ..................................   $  1,214,000    $  4,930,000
   Accounts payable ...................................................     45,809,479      63,639,499
   Compensation and employee benefits .................................      4,984,686       2,389,312
   Clients' advances ..................................................      7,494,724       7,572,479
   Other accrued liabilities ..........................................      1,832,235       3,870,150
   Income taxes payable ...............................................        142,436           --   
                                                                          ------------    ------------
            Total current liabilities .................................     61,477,560      82,401,440
Long-term liabilities:
   Long-term debt .....................................................      3,259,000       6,487,000
   Deferred compensation ..............................................      3,280,190       3,592,851
   Deferred income ....................................................        716,318         859,582
   Deferred taxes .....................................................         79,000           --   
   Other ..............................................................      2,853,113       3,814,464
                                                                          ------------    ------------
            Total long-term liabilities ...............................     10,187,621      14,753,897

Stockholders' equity:
  Common stock, $1 par value:
     Class A, nonvoting; authorized 2,000,000 shares,
       outstanding 224,950 shares in 1994 and 271,320 shares in 1993...        224,950         271,320
     Class B, voting; authorized 200,000 shares,
        outstanding 54,800 shares in 1994 and 49,800 shares in 1993 ...         54,800          49,800
   Retained earnings (deficit) ........................................      2,049,342        (197,641)
                                                                         ------------    ------------
            Total stockholders' equity ................................      2,329,092         123,479
                                                                          ------------    ------------
            Total liabilities and stockholders' equity ................   $ 73,994,273    $ 97,278,816
                                                                          ============    ============
</TABLE>

                See notes to consolidated financial statements.



                                      F-2
<PAGE>
                         ROSS ROY COMMUNICATIONS, INC.

                     CONSOLIDATED STATEMENTS OF OPERATIONS
                  Years ended December 31, 1994, 1993 and 1992

<TABLE>
<CAPTION>
                                                                1994            1993            1992
                                                            ------------    ------------    ------------
<S>                                                         <C>             <C>             <C>         
Revenue .................................................   $ 65,727,498    $ 79,444,554    $ 86,443,417
Operating expenses:
  Compensation and employee benefits ....................     39,382,100      51,063,706      57,455,973
  Occupancy expense .....................................      6,550,670       9,348,406      10,699,532
  General agency expense ................................      7,925,201      11,116,803      11,501,131
  Special charges, asset write-downs and losses
     on sales of subsidiaries ...........................      1,418,820       8,732,454      10,622,594
  Other .................................................      1,951,983       3,248,300       3,202,992
                                                            ------------    ------------    ------------
        Total operating expenses ........................     57,228,774      83,509,669      93,482,222
Operating income (loss) .................................      8,498,724      (4,065,115)     (7,038,805)

Other expense (income):
  Interest expense ......................................      1,215,190       1,610,459       1,759,088
  Interest and investment income ........................       (174,450)       (257,889)       (389,828)
  Life insurance proceeds and other .....................           --        (8,388,361)        384,834
                                                            ------------    ------------    ------------
        Total other expense .............................      1,040,740      (7,035,791)      1,754,094
Income (loss) before single business tax and income
   taxes, minority interest and cumulative effect of
   change in accounting principle .......................      7,457,984       2,970,676      (8,792,899)
Provision (credit), single business tax and income taxes:
  Single business tax ...................................        520,000         826,000         864,400
  Current ...............................................        602,685        (302,171)       (680,000)
  Deferred ..............................................      2,419,842      (2,312,040)     (2,144,078)
                                                            ------------    ------------    ------------
          Total taxes ...................................      3,542,527      (1,788,211)     (1,959,678)
                                                            ------------    ------------    ------------
Net income (loss) before minority interest and
   cumulative effect of change in accounting principle ..      3,915,457       4,758,887      (6,833,221)
Minority interest .......................................        206,659         216,683         210,840
                                                            ------------    ------------    ------------
Net income (loss) before cumulative change in
   accounting principle .................................      3,708,798       4,542,204      (7,044,061)
Cumulative effect of change in accounting principle .....           --              --          (600,000)
                                                            ------------    ------------    ------------

Net income (loss) .......................................   $  3,708,798    $  4,542,204    $ (7,644,061)
                                                            ============    ============    ============
</TABLE>


                See notes to consolidated financial statements.



                                      F-3
<PAGE>
                         ROSS ROY COMMUNICATIONS, INC.

                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                  Years ended December 31, 1994, 1993 and 1992

<TABLE>
<CAPTION>
                                               Common Stock              
                                       ----------------------------      Retained
                                          Class A         Class B        Earnings          Total
                                       ------------    ------------    ------------    ------------
<S>                                    <C>             <C>             <C>             <C>         
Balance, January 1, 1992 ...........   $    452,986    $     89,800    $ 10,068,356    $ 10,611,142
  Net loss .........................           --              --        (7,644,061)     (7,644,061)
  Purchase of 32,384 Class A shares         (32,384)           --          (887,030)       (919,414)
  Issuance of 24,100 Class A shares          24,100            --           653,351         677,451
  Translation adjustment ...........           --              --          (394,854)       (394,854)
                                       ------------    ------------    ------------    ------------
Balance, December 31, 1992 .........        444,702          89,800       1,795,762       2,330,264
  Net income .......................           --              --         4,542,204       4,542,204
  Purchase of 226,542 Class A shares       (226,542)           --        (6,573,919)     (6,800,461)
  Purchase of 55,000 Class B shares            --           (55,000)     (1,596,100)     (1,651,100)
  Issuance of 53,160 Class A shares          53,160            --         1,390,334       1,443,494
  Issuance of 15,000 Class B shares            --            15,000         435,300         450,300
  Translation adjustment ...........           --              --          (191,222)       (191,222)
                                       ------------    ------------    ------------    ------------
Balance, December 31, 1993 .........        271,320          49,800        (197,641)        123,479
  Net income .......................           --              --         3,708,798       3,708,798
  Purchase of 50,300 Class A shares         (50,300)           --        (1,673,635)     (1,723,935)
  Purchase of 10,000 Class B shares            --           (10,000)       (336,200)       (346,200)
  Purchase of 21,257 Options .......        (21,257)           --          (660,696)       (681,953)
  Issuance of 8,930 Class A shares .          8,930            --           259,238         268,168
  Issuance of 10,000 Class B shares            --            10,000         290,300         300,300
  Exercise of 21,257 options .......         21,257            --           566,740         587,997
  Transfer of shares ...............         (5,000)          5,000            --              --   
  Translation adjustment ...........           --              --            92,438          92,438
                                       ------------    ------------    ------------    ------------
Balance, December 31, 1994 .........   $    224,950    $     54,800    $  2,049,342    $  2,329,092
                                       ============    ============    ============    ============
</TABLE>



                See notes to consolidated financial statements.


                                      F-4
<PAGE>
                         ROSS ROY COMMUNICATIONS, INC.

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                  Years ended December 31, 1994, 1993 and 1992

<TABLE>
<CAPTION>

                                                                 1994            1993            1992
                                                                 ----            ----            ----
<S>                                                         <C>             <C>             <C>          
Cash Flow from Operating Activities:
   Net income (loss) before cumulative effect of change
      in accounting principle ...........................   $  3,708,798    $  4,542,204    $ (7,044,061)
   Adjustments to reconcile net income (loss) to net cash
     provided by operating activities:
     Pension income recognized ..........................     (1,784,284)     (1,333,331)     (1,034,465)
     Depreciation and amortization ......................      1,081,593       1,916,872       2,617,301
     Provision for losses on accounts receivable ........        182,050         242,138         206,719
     Provision (credit) for deferred taxes ..............      2,419,842      (2,481,040)     (3,189,882)
     Decrease (increase) in cash value of life insurance         489,117       2,309,614         (88,294)
     Special charges, asset write-downs and losses on
        sales of subsidiaries ...........................     (1,613,872)      6,639,404       9,672,285
Changes in operating assets and liabilities that
  provided (used) cash:
     Accounts receivable ................................     16,179,090      11,097,359         426,450
     Billable production in process .....................        523,701         150,343       2,244,176
     Refundable income taxes and other current assets ...      3,594,046      (1,175,980)     (2,860,381)
     Accounts payable and other current liabilities .....    (15,936,193)    (12,808,418)      1,264,815
                                                            ------------    ------------    ------------
            Total adjustments ...........................      5,135,090       4,556,961       9,258,724
                                                            ------------    ------------    ------------
            Net cash provided by operating activities ...      8,843,888       9,099,165       2,214,663

Cash Flow from Investing Activities:
   Expenditures for property and equipment ..............       (850,249)       (478,866)     (1,158,046)
   Proceeds from disposals of property and equipment ....         22,289       5,291,055          77,586
   Increase in other noncurrent assets ..................        (29,738)       (483,597)       (351,307)
   Other ................................................        235,127           6,558        (288,077)
                                                            ------------    ------------    ------------
            Net cash provided by (used in) investing
              activities ................................       (622,571)      4,335,150      (1,719,844)

Cash Flow from Financing Activities:
   Proceeds from issuance of long-term debt .............      1,700,000            --         1,000,000
   Repayments of long-term debt .........................     (8,679,000)    (11,787,811)     (1,528,511)
   Purchases of stock ...................................     (2,752,088)     (5,312,593)       (919,414)
   Issuances of stock ...................................      1,156,465       1,893,794         677,651
   Repayments of stock repurchase obligations ...........       (983,000)           --              --   
   Increase in stock repurchase obligations .............      1,018,000       2,738,023            --   
                                                            ------------    ------------    ------------
         Net cash used in financing activities ..........     (8,539,623)    (12,468,587)       (770,274)
Net Increase (Decrease) in Cash and Cash Equivalents ....       (318,306)        965,728        (275,455)
Cash and Cash Equivalents at Beginning of Year ..........      2,181,338       1,215,610       1,491,065
                                                            ------------    ------------    ------------
Cash and Cash Equivalents at End of Year ................   $  1,863,032    $  2,181,338    $  1,215,610
                                                            ============    ============    ============
</TABLE>





                See notes to consolidated financial statements.


                                      F-5
<PAGE>
                         ROSS ROY COMMUNICATIONS, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                  Years ended December 31, 1994, 1993 and 1992

1. Significant Accounting Policies

     Principles of Consolidation -- Effective  February 28, 1994, Ross Roy, Inc.
merged into Ross Roy Group,  Inc. and became  known as Ross Roy  Communications,
Inc.  The  consolidated  financial  statements  include the accounts of Ross Roy
Communications,   Inc.   and  its   subsidiaries   (the   "Corporation").   Upon
consolidation,  all significant intercompany accounts and transactions have been
eliminated.

     Revenue -- The Corporation is an agency rendering principally  advertising,
merchandising  and sales  promotion  services to domestic and  Canadian  clients
under various billing and fee  arrangements.  Revenue  derived from  advertising
placed with media is generally  recognized  based upon  publication or broadcast
dates. Revenue related to outside services, materials and certain internal costs
billable to clients is recognized when billed or upon completion.

     Billable  Production  in Process  includes  outside  services and materials
which are stated at the lower of accumulated  job costs or estimated  realizable
amounts.

     Cash and Cash  Equivalents  -- For the  purpose  of the  statement  of cash
flows, the Corporation considers all highly liquid investments purchased with an
original maturity of three months or less to be cash equivalents.

     Cost of Purchased Assets in Excess of Fair Value  ("goodwill") is amortized
on a  straight-line  basis  over  its  estimated  useful  life  not to  exceed a
forty-year period.

     Property and Equipment are stated at cost.  Provisions for depreciation and
amortization of leasehold  improvements and furniture and equipment are computed
by the  straight-line  method  over the  estimated  useful  lives of the related
assets or over the lease term, whichever period is shorter.

     Income  Taxes  have been  accounted  for  according  to the  provisions  of
Statement of Financial  Accounting Standards ("SFAS") No. 109, adopted effective
January 1, 1992,  which  requires  the  recognition  of deferred  tax assets and
liabilities at the effective federal tax rate.

     Foreign  Currency  Translation -- The financial  statements of the Canadian
subsidiaries  are  translated  to United  States  dollars using the current rate
method.  Under  this  method,  translation  adjustments  are  made  directly  to
stockholders' equity.

     Reclassification  -- Certain amounts in the previously issued  consolidated
financial statements have been reclassified to conform with the presentation set
forth herein.

2. Major Clients

     Approximately  83%, 67% and 56% of the Corporation's  revenue in 1994, 1993
and 1992,  respectively,  was attributable to three major clients. These clients
are concentrated in the automobile  manufacturing and  distribution,  and retail
industries.

     In 1994 the  Corporation  was informed by their major retail  client of its
decision to utilize another agency.  It is anticipated that the Corporation will
transition its responsibilities to the new agency in mid to late 1995.

3. Common Stock and Repurchase Obligation

     Under the Corporation's  Articles of Incorporation,  as amended, all of the
common stock of the  Corporation is owned by the employees,  and the Corporation
is  obligated  to  repurchase  its  common  stock  from  its  shareholders  upon
termination of employment.  At December 31, 1994,  1993 and 1992, the repurchase
price was  $34.62,  $30.03 and $30.02 per share,  respectively.  The  repurchase
price was determined by a formula,  as amended and approved by the  shareholders
based  primarily upon book value,  adjusted for certain items  determined by the
Board of Directors (the "Board"), and the fair value of certain investments.  At
the Corporation's option,  amounts payable upon repurchase greater than $100,000
are payable in equal  installments over a four year period.  The Corporation has


                                      F-6
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

an  agreement  with a bank whereby an employee may borrow funds from the bank to
purchase  stock and the  borrowings  are  guaranteed by the  Corporation.  These
guaranteed borrowings approximated $4,881,000 at the date of this report.

     The  Corporation  maintains two stock option plans,  adopted in 1990 and as
amended (the "1990 Plan") and in 1982 (the "1982  Plan"),  in which  250,000 and
160,000 shares of the Corporation's  common stock,  respectively,  were reserved
for sale to  officers  and other  key  employees  at a price  equal to the stock
repurchase  price at the date of grant.  Options are granted by the Stock Option
Committee of the Board.  Options under the 1990 Plan expire eight years from the
date of grant and become exercisable in full or in such cumulative  installments
as determined by the Stock Option Committee.  Options under the 1982 Plan expire
seven  years from the date of grant and  become  exercisable  in 20%  cumulative
installments beginning one year from the date of grant.

     A summary of changes in  outstanding  options for the years ended  December
31, 1994, 1993 and 1992 is as follows:

<TABLE>
<CAPTION>
                                                         1990 Plan                           1982 Plan
                                               ---------------------------         ---------------------------
                                               1994       1993        1992         1994       1993        1992
                                               ----       ----        ----         ----       ----        ----
<S>                                           <C>        <C>          <C>         <C>        <C>         <C>  
Shares under option (at prices ranging
   from $15.37 to $30.03) -- 
   Beginning of year ....................     78,500     125,000      91,000      7,892      19,072      19,072
Options granted (at prices ranging from
   $28.03 to $30.03) ....................     59,500       5,000      34,000       --          --          --   
Options exercised (at prices ranging from
   $15.37 to $28.11) ....................    (13,100)    (42,500)       --       (3,157)    (11,180)       --   
Options forfeited .......................     (9,400)     (9,000)       --         (789)       --          --   
                                             -------     -------     -------      -----      ------      ------
Options under option (at prices ranging
   $15.37 to $30.03)-- End of year ......    115,500      78,500     125,000      3,946       7,892      19,072
                                             =======     =======     =======      =====      ======      ======
Shares exercisable ......................     99,000      68,100     105,000      3,946       6,312      17,492
                                             =======     =======     =======      =====      ======      ======
</TABLE>

     All of the exercisable  shares at December 31, 1994 under the 1990 and 1982
Plans were exercised subsequent to year-end.

     As part of its program to retain key management employees,  the Corporation
has a supplemental  compensation  plan which enables such key executives to earn
payments on units awarded under the plan. The payments are based on appreciation
in the repurchase price of the Corporation's common stock. The cost of the plan,
which is not significant, is accrued as earned.

4. Debt

     Long-term debt consists of the following at December 31, 1994 and 1993:

                                                      1994              1993
                                                   -----------       -----------
Term note payable to bank ..................       $      --         $ 3,781,000
Revolving line of credit agreement .........         1,700,000         4,802,000
Stock repurchase obligations ...............         2,773,000         2,738,000
Capital lease obligation ...................              --              96,000
                                                   -----------       -----------
   Total ...................................         4,473,000        11,417,000
Less current portion .......................         1,214,000         4,930,000
                                                   -----------       -----------
Long-term portion ..........................       $ 3,259,000       $ 6,487,000
                                                   ===========       ===========


                                      F-7
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

     During 1994,  the  Corporation  negotiated a new  revolving  line of credit
agreement with a bank. The Corporation's revolving line of credit agreement with
the bank for $20,000,000 is effective through July 31, 1996. The facility allows
borrowings based on a calculation tied primarily to accounts receivable, work in
process  and media  payables.  The  interest  rate on this  revolver  fluctuates
between prime and 0.5% above prime,  based on the borrowing  level. The interest
rate was 8.75% at December 31, 1994.  As of December  31, 1994,  $1,700,000  was
drawn on the line of credit by the  Corporation and $500,000 of the revolver was
used for a letter of credit.  The available line of credit is further reduced by
certain shareholder loans for which the Corporation serves as a guarantor. These
guaranteed  borrowings  approximated  $3,072,000  as of the date of this report.
Borrowings  under this  agreement  are  collateralized  by the  majority  of the
Corporation's  assets.  The lending  agreement  requires the Corporation to meet
certain financial  covenants,  including a minimum tangible net worth, a maximum
leverage ratio and a fixed charge coverage requirement. As of December 31, 1994,
the  Corporation  was not in  compliance  with its  minimum  tangible  net worth
covenant.  However, the bank has amended the Agreement subsequent to year-end to
adjust the minimum  tangible net worth  covenant  whereby the  Corporation is in
compliance.

     The term note payable to a bank and the revolving credit agreement with the
prior lender were paid on June 30, 1994 coincident with the establishment of the
new bank facility.

     Principal  maturities  of long-term  debt during the three years  following
1994 are as follows:

                                   Revolving           Stock
                                    Credit           Repurchase
Year                               Agreement        Obligations         Total
- ----                              ----------        -----------      -----------
1995 .......................      $     --          $1,214,000       $1,214,000
1996 .......................       1,700,000           885,000        2,585,000
1997 .......................            --             674,000          674,000
                                  ----------        ----------       -----------
         Total .............      $1,700,000        $2,773,000       $4,473,000
                                  ==========        ==========       ===========

5. Lease Arrangements

     Certain operations of the Corporation and its subsidiaries are conducted on
premises  under  operating  leases which expire at various  dates  through 1999,
including  an operating  lease for its major  operating  facility  leased from a
partnership in which the Corporation  owns a 50% interest.  The Corporation also
has other noncancelable operating leases for the use of computers,  automobiles,
telephones, and other equipment.

     Future  minimum  payments under  noncancelable  lease  obligations  (net of
sublease  income and including  payments to related  parties) as of December 31,
1994 are shown below.  These  amounts do not include  $1,800,000  of other lease
costs that have been accrued as of December 31, 1994.

      Year                                                  Operating
      ----                                                 -----------
      1995 ..........................................      $ 6,377,000
      1996 ..........................................        5,416,000
      1997 ..........................................        4,876,000
      1998 ..........................................        4,304,000
      1999 ..........................................        4,389,000
                                                           -----------
        Total minimum lease payment .................      $25,362,000
                                                           ===========

     At December 31, 1994 aggregate  future minimum rentals to be received under
noncancelable subleases totaled approximately $1,495,000.  During 1994, 1993 and
1992, $267,000, $63,000 and $76,000, respectively, in sublease rental income was
received. Rental expense aggregated $5,490,000, $7,890,000 and $8,272,000 during
the years  ended  December  31,  1994,  1993 and 1992,  respectively  (including
payments to the related partnership of $3,045,000, $2,659,000 and $2,678,000 for
1994, 1993 and 1992, respectively).


                                      F-8
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

     At  December  31,  1993,  equipment  under a  capital  lease  had a cost of
approximately  $282,000 and accumulated  depreciation  of $207,000.  The capital
lease was repaid in 1994.

6. Employee Benefit Plans

     The Corporation has defined  contribution plans covering  substantially all
domestic  and  Canadian   employees.   All   employees  are  permitted  to  make
contributions to the plans. Amounts of the employer  contributions,  if any, are
determined  by  each  subsidiary.   The  cost  of  benefits  under  the  defined
contribution plans totaled  $1,289,000 in 1994,  $213,000 in 1993 and $1,461,000
in 1992.

     The Corporation  also has a defined  benefit pension plan covering  certain
domestic  salaried  employees.  Effective  December  31, 1989,  the  Corporation
amended the defined benefit plan which fully vested all  participants  and froze
the Basic Retirement  Benefits for most participants at the amount determined as
of  that  date.  For  certain   employees  meeting  specified  age  and  service
requirements,  benefits  continue to accrue on a revised  formula.  Benefits are
calculated based on a percentage of the  participants'  salary as defined in the
agreement.

     The  components  of net  periodic  pension  income  related to the  defined
benefit plan include the following:

<TABLE>
<CAPTION>

                                                     1994           1993           1992
                                                 -----------    -----------    -----------
<S>                                              <C>            <C>            <C>        
Service cost (benefits earned during the year)   $    58,000    $   106,000    $   113,000
Interest cost on projected benefit obligation.     1,443,000      1,578,000      1,568,000
Actual (return) loss on plan assets ..........     1,692,000     (2,690,000)    (1,961,000)
Net amortization and deferral ................    (4,977,000)      (295,000)      (838,000)
                                                 -----------    -----------    -----------
Net pension income ...........................   $(1,784,000)   $(1,301,000)   $(1,118,000)
                                                 ===========    ===========    ===========
</TABLE>

     Net amortization and deferral  consists of amortization of the net asset or
overfunded  position at the date of adoption of SFAS No. 87 and the  deferral of
subsequent  net  gains  and  losses  caused by the  actual  plan and  investment
experience  differing from that assumed. The assumptions used to determine gains
and losses are a discount  rate of 8.5% in 1994,  7.5% in 1993 and 8.0% in 1992,
an expected annual long-term rate of return on plan assets of 9.5% and an annual
increase in the long-term level of compensation of 5.5% for all years.  The plan
assets consist primarily of investments in equity securities.

     The following table provides a  reconciliation  of the funded status of the
defined benefit pension plan with the amounts recognized in the balance sheet as
of December 31:

<TABLE>
<CAPTION>
                                                        1994            1993            1992
                                                    ------------    ------------    ------------
<S>                                                 <C>             <C>             <C>  
Actuarial present value of:       
   Vested benefit obligation ....................   $ 17,601,000    $ 21,114,000    $ 20,028,000
                                                    ============    ============    ============

   Accumulated benefit obligation ...............   $ 17,757,000    $ 21,343,000    $ 20,067,000
                                                    ============    ============    ============


   Projected benefit obligation .................   $ 17,964,000    $ 21,742,000    $ 20,407,000
   Plan assets at fair value ....................     27,904,000      31,160,000      29,959,000
                                                    ------------    ------------    ------------
       Excess of assets over projected
          benefit obligation ....................      9,940,000       9,418,000       9,552,000
   Unrecognized prior service cost ..............        643,000         245,000         251,000
   Unrecognized net loss ........................      3,085,000       2,763,000       1,855,000
   Unrecognized net asset .......................     (3,236,000)     (3,776,000)     (4,315,000)
                                                    ------------    ------------    ------------
   Prepaid pension costs recorded in other assets   $ 10,432,000    $  8,650,000    $  7,343,000
                                                    ============    ============    ============
</TABLE>


                                      F-9
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

     In addition to the benefit plans described above, the Corporation  provides
certain health and life insurance  benefits to eligible  employees and retirees.
The cost of these benefits, which approximated $1,644,000 in 1994, $2,029,000 in
1993 and  $2,635,000 in 1992 are accounted for as expenses in the  Corporation's
consolidated financial statements in the year they are incurred.

     The  Financial   Accounting  Standards  Board  has  issued  SFAS  No.  106,
"Accounting for  Postretirement  Benefits Other Than  Pensions,"  which requires
accrual of retiree  benefits  during the years the employees  provide  services,
which  will be  adopted  by the  Corporation  effective  January  1,  1995.  The
estimated  impact of the adoption will be $2,500,000  (net of applicable  income
taxes) if the  transition  obligation is recognized as a one-time  charge in the
year of adoption. Implementation of the new Standard will have no cash impact on
the Corporation.

7. Income Taxes

     Effective   January  1,  1992,  the  Corporation   adopted  SFAS  No.  109,
"Accounting for Income Taxes," which requires the liability method of accounting
for deferred income taxes and the recognition of net deferred tax assets subject
to an ongoing assessment of realizability. At January 1, 1992, the adjustment of
deferred tax assets and liabilities resulted in an unfavorable cumulative effect
of the change in accounting principle of approximately $600,000.

     Income (loss) before taxes and the provision  (credit) for taxes  consisted
of the amounts shown below:
<TABLE>
<CAPTION>

                                                            1994             1993             1992
                                                       --------------   -------------    -------------
<S>                                                    <C>              <C>              <C>  
Income (loss) before single business tax
  and income taxes, minority interest and cumulative
  effect of change in accounting principle:         
  Domestic .........................................   $   5,986,592    $   2,237,817    $ (10,166,105)
  International ....................................       1,471,392          732,859        1,373,206
                                                       --------------   -------------    -------------
      Total ........................................   $   7,457,984    $   2,970,676    $  (8,792,899)
                                                       =============    =============    =============
Provision (credit), single business tax and
  income taxes:
  Single business tax ..............................   $     520,000    $     826,000    $     864,400
                                                       -------------    -------------    -------------
  Current:
      Federal ......................................            --           (547,901)      (1,426,645)
      State and local ..............................         (61,361)         (24,135)          53,077
      International ................................         664,046          269,865          693,568
                                                       --------------   -------------    -------------
                                                             602,685         (302,171)        (680,000)
                                                      --------------   -------------    -------------
  Deferred--Federal ................................       2,419,842       (2,312,040)      (2,144,078)
                                                      --------------   -------------    -------------
      Total ........................................   $   3,542,527    $  (1,788,211)   $  (1,959,678)
                                                       =============    =============    =============
</TABLE>


                                      F-10
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

     The  Corporation's  effective  income tax rate  varied  from the  statutory
federal income tax rate as a result of the following factors:

                                                   1994       1993        1992
                                                   ----       ----        ----
Statutory federal income tax (benefit) rate .....  34.0%      34.0 %     (34.0)%
Single business tax, net of federal income tax
   benefit ......................................   4.6       18.3         6.5
International subsidiaries' tax rate in excess of
   federal statutory rate .......................   2.2        0.7         2.6
Nondeductible amortization of goodwill ..........   1.2        0.8         3.0
Nondeductible travel and entertainment expenses .   1.8        2.6         1.3
Receipts from life insurance policies, payment of
   premiums for life insurance policies and other   3.7      (116.6)      (1.7)
                                                   ----       -----       ----
Effective  rate .................................  47.5%     (60.2)%     (22.3)%
                                                   ====       =====       ====

     Temporary  differences  and  carryforwards  which give rise to  significant
deferred  tax  assets  and  liabilities  at  December  31,  1994 and 1993 are as
follows:

                                                         1994           1993
                                                     -----------    ----------- 
Deferred tax assets:
  Alternative minimum tax carryforwards ..........   $   414,000    $   401,000
  Net operating and capital loss carryforwards ...     3,714,000      4,584,000
  Contribution carryforwards .....................       213,000        274,000
  Reserves .......................................     2,202,000      3,325,000
  Lease transactions .............................       951,000        644,000
  Bad debt expense ...............................       187,000        333,000
                                                     -----------    -----------
     Total deferred tax assets ...................     7,681,000      9,561,000
Less valuation allowance for certain carryforwards      (570,000)      (568,000)
                                                     -----------    -----------
     Net deferred tax assets .....................     7,111,000      8,993,000
Current portion ..................................       735,000        274,000
                                                     -----------    -----------
Long-term portion ................................   $ 6,376,000    $ 8,719,000
                                                     ===========    ===========
Deferred tax liabilities:
  Installment receivables ........................   $   357,000    $   357,000
  Depreciation ...................................       902,000        962,000
  Pension income .................................     3,572,000      3,127,000
  Deferred investment income .....................     1,640,000      1,446,000
  Other ..........................................        10,000         51,000
                                                     -----------    -----------
     Total deferred tax liabilities ..............     6,481,000      5,943,000
Current portion ..................................        26,000         10,000
                                                     -----------    -----------
Long-term portion ................................     6,455,000      5,933,000
                                                     -----------    -----------
Deferred tax asset ...............................   $   630,000    $ 3,050,000
                                                     ===========    ===========

     At December 31, 1994, the Corporation  had  alternative  minimum tax credit
carryforwards of approximately $414,000, which have no expiration dates, and net
operating  loss and capital  loss  carryforwards  of  approximately  $10,924,000
(which is a $3,714,000  benefit at a statutory tax rate of 34%), which expire in
1998  for the  capital  loss  carryforwards  and in the  year  2008  for the net
operating loss carryforwards.


                                      F-11
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

8. Cash Flow Reporting

     During  1994,  1993 and  1992,  respectively,  the  Corporation  made  cash
payments of  approximately  $1,408,000,  $1,462,000 and $2,006,000 for interest,
and  $640,000,  $1,510,000  and  $330,000 for federal and  international  income
taxes.

9. Special Charges, Asset Write-Downs, and Losses on Sales of Subsidiaries

     During 1994, the Corporation recorded a net special charge of approximately
$1,419,000.  This  charge  resulted  primarily  from  severance  and other costs
related to the loss of a major  client as described in Note 2 and was reduced by
approximately  $600,000 in adjustments  to charges  recorded in prior years that
were  settled for amounts  less than  originally  estimated.  As of December 31,
1994,  approximately  $3,600,000 of the total charges  remain unpaid and will be
paid over the next five years.

     During 1993 and 1992, the Corporation  recognized  costs and write-downs of
approximately $8,732,000 and $10,623,000,  respectively,  related to the sale of
certain  subsidiaries,  the divestiture of certain operations and the impairment
of certain assets.  The 1993 losses were primarily the result of losses incurred
in the sale of  subsidiaries,  severance costs and the write-off of fixed assets
and accrual of lease charges at the disposed subsidiaries.  The 1992 losses were
the result of the impairment of the value of a building of a former  subsidiary,
write-off  of notes  receivable  from the  prior  sale of the  former  corporate
headquarters which were determined to be uncollectible,  write-off of intangible
assets  related  to  disposed  subsidiaries,   and  costs  associated  with  the
reorganization  of the Corporation  including  severance/settlement  costs,  and
charges relating to the combination of certain operations of the Corporation.

10. Other Income

     Included  in other  income  for 1993 are the  tax-exempt  proceeds  of life
insurance  policies of  approximately  $8,363,000  received during 1993 upon the
death of an officer of the Corporation.



                                      F-12
<PAGE>
                         ROSS ROY COMMUNICATIONS, INC.

               CONSOLIDATED CONDENSED BALANCE SHEETS (Unaudited)
                            March 31, 1995 and 1994

                                     ASSETS             1995            1994
                                                        ----            ----
Current assets:
   Cash and cash equivalents (including
      restricted cash of $1,847,000 in
      1995 and $72,000 in 1994) ................   $  2,400,405    $  1,972,655
   Accounts receivable, net of allowance
      for doubtful accounts of $214,000
      in 1995 and $247,000 in 1994 .............     47,683,680      45,591,027
   Billable production in process ..............      4,369,636       3,813,983
   Refundable income taxes .....................         14,880       1,455,423
   Prepaid expenses and other ..................      1,318,562       1,225,979
                                                   ------------    ------------
           Total current assets ................     55,787,163      54,059,067
                                                   ------------    ------------
Property and Equipment:
   Leasehold improvements ......................      6,539,302       6,291,142
   Furniture and fixtures ......................     11,502,031      11,351,942
                                                   ------------    ------------
            Total ..............................     18,041,333      17,643,084
   Less--accumulated depreciation
      and amortization .........................     (9,415,070)     (8,609,061)
                                                   ------------    ------------
            Net property and equipment .........      8,626,263       9,034,023
                                                   ------------    ------------
Other assets:
   Cash value of life insurance, less
      policy loans of $2,025,000 in
      1995 and $2,669,000 in 1994 ..............        875,958       1,271,828
   Notes receivable ............................        179,283         179,283
   Cost of purchases assets in 
      excess of fair value .....................        508,741         750,067
   Deferred taxes ..............................      3,121,000       2,786,000
   Prepaid pension asset and other .............     12,074,889      11,096,774
                                                   ------------    ------------
      Total other assets .......................     16,759,871      16,083,952
                                                   ------------    ------------
            Total Assets .......................   $ 81,173,297    $ 79,177,042
                                                   ============    ============

                      LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
   Current portion of long-term debt ...........   $    951,211    $  4,879,749
   Accounts payable ............................     44,328,977      38,141,846
   Compensation and employee benefits ..........      3,207,370       2,810,224
   Clients' advances ...........................      9,388,414       5,318,719
   Other accrued liabilities ...................      1,571,524       2,846,063
                                                   ------------    ------------
           Total current liabilities ...........     59,447,496      53,996,601
                                                   ------------    ------------
Long-term liabilities:
   Long-term debt ..............................      4,543,242      15,487,200
   Deferred compensation .......................      2,804,039       3,511,311
   Deferred income .............................        680,502         823,766
   Deferred income taxes .......................           --           616,528
   Other .......................................     12,746,049       3,909,682
                                                   ------------    ------------
            Total long-term liabilities ........     20,773,832      24,348,487
                                                   ------------    ------------
Stockholders' equity:
   Common stock, $1 par value:
      Class A, nonvoting; authorized
         2,000,000 shares,  outstanding
         343,703 shares in 1995 and
         251,420 shares in 1994 ................        343,703         251,420
      Class B, voting; authorized 200,000
         shares, outstanding 54,800 shares
         in 1995 and 1994 ......................         54,800          54,800
   Retained earnings ...........................        553,466         525,734
                                                   ------------    ------------
            Total stockholders' equity .........        951,969         831,954
                                                   ------------    ------------
            Total Liabilities and 
               Stockholders' Equity ............   $ 81,173,297    $ 79,177,042
                                                   ============    ============


           See notes to consolidated condensed financial statements.


                                      F-13
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

          CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (Unaudited)
                     Quarters ended March 31, 1995 and 1994



                                                        1995            1994
                                                        ----            ----
Revenue ........................................   $ 16,988,442    $ 15,843,609
                                                    -----------     -----------
Operating expenses:
  Compensation and employee benefits ...........     10,071,735       9,443,097
  Occupancy expense ............................      1,642,722       1,657,072
  General agency expense .......................      1,567,556       1,682,668
  Other ........................................        491,712         324,200
                                                    -----------     -----------
        Total operating expenses ...............     13,773,725      13,107,037
                                                    -----------     -----------
Operating income ...............................      3,214,717       2,736,572
                                                    -----------     -----------
Other expense (income):
  Interest expense .............................        196,537         262,872
  Interest and investment income ...............        (32,643)       (108,299)
                                                    -----------     -----------
        Total other expense ....................        163,894         154,573
                                                    -----------     -----------
Income before income taxes, Michigan
   single business tax,  minority
   interest and cumulative effect
   of change in accounting principle ...........      3,050,823       2,581,999

Provision for Michigan single business tax,
   federal and international taxes:
   Single business tax .........................        217,500         210,000
   Deferred ....................................      1,053,415         880,528
                                                    -----------     -----------
          Total taxes ..........................      1,270,915       1,090,528
                                                    -----------     -----------
Net income before minority interest
   and cumulative effect of change
   in accounting principle .....................      1,779,908       1,491,471

Minority interest ..............................         91,719         142,549
                                                    -----------     -----------
Net income before cumulative effect
   of change in accounting principle ...........      1,688,189       1,348,922

Cumulative effect of change
   in accounting principle .....................     (6,600,000)           --   
                                                    -----------     -----------
Net (loss) income ..............................   $ (4,911,811)   $  1,348,922
                                                    ===========     ===========









           See notes to consolidated condensed financial statements.


                                      F-14
<PAGE>

                         ROSS ROY COMMUNICATIONS, INC.

          CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Unaudited)
                     Quarters Ended March 31, 1995 and 1994

                                                        1995            1994
                                                        ----            ----
Cash Flow from Operating Activities:
Net (loss) income ..............................   $ (4,911,811)   $  1,348,922
Adjustments to reconcile net income
   (loss) to net cash provided by
   operating activities:
   Pension income recognized ...................       (450,000)       (300,000)
   Depreciation and amortization ...............        250,303         280,398
   Provision (credit) for losses on
      accounts receivable ......................          9,137         (10,165)
   Provision (credit) for deferred taxes .......     (2,251,277)        880,528
   Increase in cash value of life insurance ....       (255,250)       (162,003)
   Increase in long-term liabilities ...........      9,900,000            --
   Special charges, asset write-downs and
      losses on sales of subsidiaries ..........       (285,054)       (779,243)
Changes in operating assets and liabilities
   that provided (used) cash:
   Accounts receivable .........................     (2,316,983)     15,993,527
   Billable production in process ..............     (1,699,423)       (620,069)
   Refundable income taxes and
      other current assets .....................        205,201       2,380,821
   Accounts payable and other
      current liabilities ......................     (2,032,511)    (27,935,435)
                                                   ------------    ------------
            Total adjustments ..................      1,074,143     (10,271,641)
                                                   ------------    ------------
            Net cash provided by
               operating activities ............     (3,837,668)     (8,922,719)
                                                   ------------    ------------

Cash Flow from Investing Activities:
    Expenditures for property and equipment ....        (28,652)       (126,124)
    Decrease in other noncurrent assets ........         53,339          16,855
    Other, net .................................       (189,237)        225,482
                                                   ------------    ------------
          Net cash provided by (used in)
             investing activities ..............       (164,550)        116,213
                                                   ------------    ------------

Cash Flow from Financing Activities:
   Proceeds from issuance of long-term debt ....      1,600,000       9,700,000
   Repayments of long-term debt ................           --           (26,438)
   Purchases of stock ..........................       (152,328)       (597,398)
   Issuances of stock ..........................      3,670,190         150,100
   Repayments to stock repurchase obligations ..       (743,511)       (628,441)
   Increase in stock repurchase obligations ....        165,240            --
                                                   ------------    ------------
          Net cash used in financing activities       4,539,591       8,597,823
                                                   ------------    ------------
Net Increase (Decrease) in Cash
   and Cash Equivalents ........................        537,373        (208,683)
Cash and Cash Equivalents
   at Beginning of Year ........................      1,863,032       2,181,338
                                                   ------------    ------------
Cash and Cash Equivalents
   at End of Quarter ...........................   $  2,400,405    $  1,972,655
                                                   ============    ============
                                                   








           See notes to consolidated condensed financial statements.

                                      F-15
<PAGE>
                         ROSS ROY COMMUNICATIONS, INC.

              NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS

     1. The consolidated  condensed interim financial statements included herein
have been prepared by the  Corporation  without audit.  Certain  information and
footnote  disclosures  normally  included in  financial  statements  prepared in
accordance with generally accepted accounting  principles have been condensed or
omitted  pursuant to the rules and  regulations  of the  Securities and Exchange
Commission,  although the Corporation believes that the disclosures are adequate
to make the information presented not misleading.

     2. These statements reflect all adjustments  consisting of normal recurring
accruals  which,  in  the  opinion  of  management,  are  necessary  for a  fair
presentation of the information  contained  therein.  Certain  reclassifications
have been made to the March 31,  1994  reported  amounts to conform  them to the
March 31, 1995 presentation.  It is suggested that these consolidated  condensed
financial  statements  be read in  conjunction  with the  Corporation's  audited
consolidated financial statements and notes thereto as of December 31, 1994.

     3.  Results of  operations  for the  interim  periods  are not  necessarily
indicative of annual results.

     4. The Corporation's  1990 stock option plan, as amended,  reserved 250,000
shares of Class A common stock for sale to key employees at a price equal to the
stock  repurchase  price at the date of grant.  There were  options  for 115,500
shares  outstanding  as of January 1, 1995.  Options  for  102,300  shares  were
exercised in February,  1995, at exercise  prices  ranging from $28.03 to $30.03
per share depending upon the date of grant.  There were 3,600 options  exercised
during the first quarter of 1994.

     The Corporation's  1982 incentive stock option plan reserved 160,000 shares
of Class A common stock for sale to key  employees at a price equal to the stock
repurchase  price at the date of grant.  There  were  options  for 3,946  shares
outstanding at January 1, 1995. These options were exercised in February 1995 at
an exercise price of $25.34. There were 3,157 options exercised during the first
quarter of 1994.

     5. The  Corporation  adopted  the  provisions  of  Statement  of  Financial
Accounting Standards No. 106, "Accounting for Postretirement Benefits Other Than
Pensions," effective January 1, 1995. The impact of the adoption is $6.6 million
(net of applicable  income taxes) and is recognized as a one-time  charge to net
income.  This statement  requires the accrual of postretirement  benefits during
the years in which eligible employees provide services.  Previously,  such costs
were expensed as paid.

     The  Corporation  offers  postretirement  health  care  benefits to certain
eligible  employees  and  retirees  in  the  United  States.  Such  coverage  is
self-insured but is administered by an insurance company. The pay-as-you-go cost
for  postretirement  health care  benefits  was  $310,000  and  $290,000 for the
calendar  years  ended 1994 and 1993,  respectively,  the  majority of which was
funded by reimbursements from The Ross Roy Pension Plan's Retiree Health Account
pursuant to Section 401(b) of the Internal Revenue Code of 1986.

     The components of periodic expense for postretirement  health care benefits
for 1995 are estimated as follows:

                                                                         1995
                                                                         ----
            Service cost .......................................    $   881,000
            Interest cost ......................................        906,000
                                                                    -----------
            Net periodic postretirement health care cost .......      1,787,000
            Recognition of initial transition obligation .......      9,900,000
                                                                    -----------
            Total postretirement health care costs .............    $11,687,000
                                                                    ===========


                                      F-16
<PAGE>


                         ROSS ROY COMMUNICATIONS, INC.

        NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (Continued)

     The following table sets forth the funded status and amounts recognized for
the  Corporations's  postretirement  health care  benefits  in its  consolidated
balance sheet as of March 31, 1995:

Accumulated postretirement benefit obligation (APBO):
     Retirees .............................................   $ 4,560,000
     Fully eligible active plan participants ..............     2,041,000
     Other active plan participants .......................     3,714,000
                                                              -----------
                                                               10,315,000
Less market value of plan assets ..........................          -- 
                                                              -----------
Postretirement benefit liability recognized 
   in the balance sheet as of March 31, 1995 ..............   $10,315,000
                                                              ===========


     A discount rate of 8.5% was used in determining the APBO at March 31, 1995.
The  calculation  of  postretirement  health  care  benefits  was based  upon an
actuarial  assumption of 9% for medical  inflation in 1995. This rate is assumed
to decrease to 8% in 1996 and remain at that level  thereafter.  The effect of a
one-percentage-point  annual  increase in the assumed  medical  inflation  rates
would increase the APBO by approximately  $1.7 million;  the annual service cost
would increase by approximately $400,000.

     6. In late 1994, the Corporation was informed by its major retail client of
its decision to utilize another agency. The Corporation  expects to complete the
transition of its responsibilities to the successor agency in late 1995.

     7. In May 1995, the Corporation's Board of Directors approved a merger with
a subsidiary of Omnicom Group Inc. The merger is subject to shareholder approval
which is expected to be voted upon in August 1995.




                                      F-17
<PAGE>
                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS


Item 20.  Indemnification of Directors and Officers.

     The Registrant's Certificate of Incorporation contains a provision limiting
the  liability  of  directors  (except  for  approving  statutorily   prohibited
dividends,  share  repurchases  or  redemptions,   distributions  of  assets  on
dissolution or loans to directors) to acts or omissions in bad faith,  involving
intentional  misconduct  or a knowing  violation  of the law,  or  resulting  in
personal gain to which the director was not legally  entitled.  The Registrant's
By-Laws  provide  that an officer or director  will be  indemnified  against any
costs or  liabilities,  including  attorneys fees and amounts paid in settlement
with the  consent of the  registrant  in  connection  with any claim,  action or
proceeding to the fullest extent permitted by the New York Business  Corporation
Law.

     Section  722(a) of the New York  Business  Corporation  Law provides that a
corporation  may  indemnify  any officer or director,  made or  threatened to be
made, a party to an action other than one by or in the right of the corporation,
including  an  action  by or in the  right  of any  other  corporation  or other
enterprise,  which any  director  or  officer of the  corporation  served in any
capacity at the request of the corporation, because he was a director or officer
of the corporation,  or served such other corporation or other enterprise in any
capacity,  against judgments,  fines,  amounts paid in settlement and reasonable
expenses,  including  attorneys'  fees  actually and  necessarily  incurred as a
result of such action, or any appeal therein, if such director or officer acted,
in good faith,  for a purpose which he  reasonably  believed to be in, or in the
case of service for any other corporation or other  enterprise,  not opposed to,
the best interests of the corporation and, in criminal actions, in addition, had
no reasonable cause to believe that his conduct was unlawful.

     Section  722(c) of the New York  Business  Corporation  Law provides that a
corporation  may  indemnify  any officer or director  made,  or threatened to be
made,  a party to an action by or in the right of the  corporation  by reason of
the fact that he is or was a director of the  corporation,  or is or was serving
at the  request  of the  corporation  as a  director  of  officer  of any  other
corporation of any type or kind, or other  enterprise,  against  amounts paid in
settlement  and  reasonable  expenses,  including  attorneys'  fees actually and
necessarily incurred by him in connection with the defense or settlement of such
action,  or in connection  with an appeal  therein,  if such director or officer
acted, in good faith,  for a purpose which he reasonably  believed to be in, or,
in the case of service for another corporation or other enterprise,  not opposed
to, the best interests of the  corporation.  The corporation  may not,  however,
indemnify any officer or director pursuant to Section 722(c) in respect of (1) a
threatened  action,  or a pending action which is settled or otherwise  disposed
of, or (2) any claim,  issue or matter as to which such  person  shall have been
adjudged to be liable to the corporation, unless and only to the extent that the
court in which the action was brought or, if no action was brought, any court of
competent jurisdiction,  determines in its discretion, that the person is fairly
and  reasonably  entitled to indemnity  for such portion of the  settlement  and
expenses as the court deems proper.

     Section  723 of the New York  Business  Corporation  Law  provides  that an
officer or director  who has been  successful  on the merits or otherwise in the
defense of a civil or criminal  action of the character set forth in Section 722
is entitled to indemnification as permitted in such section.  Section 724 of the
New York Business  Corporation Law permits a court to award the  indemnification
required by Section 722.

     The Registrant has entered into  agreements with its directors to indemnify
them for  liabilities  or costs  arising out of any alleged or actual  breach of
duty, neglect,  errors or omissions while serving as a director.  The Registrant
also  maintains  and  pays  premiums  for  directors'  and  officers'  liability
insurance policies.


Item 21.  Exhibits and Financial Statement Schedules.

     (a) See Exhibit Index

     (b) See the financial  statement schedules included in the Annual Report on
Form 10-K incorporated in this Prospectus/Information Statement included in this
Registration Statement.


                                      II-1
                                       
<PAGE>

Item 22.  Undertakings.

     (a) The  undersigned  Registrant  hereby  undertakes  that, for purposes of
determining  any liability  under the Securities Act of 1933, each filing of the
Registrant's  annual report pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 that is  incorporated  by  reference  in this  Registration
Statement  shall be deemed to be a new  registration  statement  relating to the
securities  offered  therein,  and the offering of such  securities at that time
shall be deemed to be the initial bona fide offering thereof.

     (b) The undersigned  registrant hereby undertakes as follows: that prior to
any public  reoffering of the securities  registered  hereunder through use of a
prospectus  which is a part of this  registration  statement,  by any  person or
party who is deemed to be an underwriter within the meaning of Rule 145(c) under
the Securities Act, the issuer  undertakes that such reoffering  prospectus will
contain the  information  called for by the  applicable  registration  form with
respect to reofferings by persons who may be deemed underwriters, in addition to
the information called for by the other Items of the applicable form.

     (c) The  registrant  undertakes  that  every  prospectus  (i) that is filed
pursuant to paragraph (1) immediately  preceding,  or (ii) that purports to meet
the  requirements of section  10(a)(3) of the Act and is used in connection with
an offering of securities  subject to Rule 415 under the Securities Act, will be
filed as a part of an amendment to the  registration  statement  and will not be
used until such  amendment is effective,  and that,  for purposes of determining
any  liability  under  the  Securities  Act of 1933,  each  such  post-effective
amendment  shall be deemed to be a new  registration  statement  relating to the
securities  offered  therein,  and the offering of such  securities at that time
shall be deemed to be the initial bona fide offering thereof.

     (d) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors,  officers or persons  controlling the
Registrant pursuant to the foregoing  provisions,  or otherwise,  the Registrant
has been advised that in the opinion of the Securities  and Exchange  Commission
such  indemnification  is against  public policy as expressed in the Act and is,
therefore,  unenforceable. In the event that a claim for indemnification against
such liabilities  (other than the payment by the Registrant of expenses incurred
or paid by a director,  officer or  controlling  person of the Registrant in the
successful  defense of any  action,  suit or  proceeding)  is  asserted  by such
director,  officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.

     (e) The undersigned Registrant hereby undertakes to respond to requests for
information  that is incorporated  by reference into the  Prospectus/Information
Statement pursuant to Items 4, 10(b), 11 or 13 of this Form, within one business
day of receipt of such requests, and to send the incorporated documents by first
class mail or other equally prompt means. This includes information contained in
documents filed subsequent to the effective date of the  Registration  Statement
through the date of the responding to the request.

     (f) The undersigned  Registrant  hereby  undertakes to supply by means of a
post-effective  amendment  all  information  concerning a  transaction,  and the
company  being  acquired  involved  therein,  that  was not the  subject  of and
included in the Registration Statement when it became effective.



                                      II-2

<PAGE>
                                   SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the Registrant
has duly caused this  Registration  Statement  to be signed on its behalf by the
undersigned,  thereunto duly  authorized,  in the City of New York, State of New
York, on June 15, 1995.

                                         OMNICOM GROUP INC.
                                         Registrant


                                         By: /S/ BRUCE CRAWFORD
                                            ------------------------------
                                                 Bruce Crawford
                                                 President and Chief
                                                 Executive Officer



                               POWER OF ATTORNEY

     KNOW ALL MEN BY THESE  PRESENTS,  that each  officer or director of Omnicom
Group Inc. whose signature appears below constitutes and appoints Bruce Crawford
and Barry J. Wagner, and each of them, his true and lawful  attorney-in-fact and
agent, with full and several power of substitution and  resubstitution,  for him
and in his name, place and stead, in any and all capacities,  to sign any or all
amendments,  to this  Registration  Statement,  and to file the  same,  with all
exhibits  thereto,  and  other  documents  in  connection  therewith,  with  the
Securities and Exchange  Commission,  granting unto said  attorneys-in-fact  and
agent full power and  authority  to do and perform  each and every act and thing
requisite and  necessary to be done in and about the  premises,  as fully to all
intents and purposes as they or he might or could do in person, hereby ratifying
and confirming all that said  attorneys-in-fact  and agents or his substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.


                                      II-3
<PAGE>

     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has been signed below by the  following  persons in the
capacities and on the dates indicated:

<TABLE>
<CAPTION>

                       Signature                                    Title                              Date
                      ----------                                    -----                              ----
        <S>                                              <C>                                        <C>
                 /S/ BRUCE CRAWFORD
        --------------------------------------              President and Chief                     June 15, 1995            
                   (Bruce Crawford)                     Executive Officer and Director
                                                        (Principal Executive Officer)
                  /S/ FRED J. MEYER
        --------------------------------------            Chief Financial Officer                   June 15, 1995           
                   (Fred J. Meyer)                               and Director
                                                       (Principal Financial Officer)
                  /S/ DALE A. ADAMS
        --------------------------------------               Controller (Principal                  June 15, 1995           
                   (Dale A. Adams)                            Accounting Officer)

                /S/ BERNARD BROCHAND
        --------------------------------------
                  (Bernard Brochand)                               Director                         June 15, 1995   
                                              
              /S/ LEONARD S. COLEMAN, JR.
         --------------------------------------
              (Leonard S. Coleman, Jr.)                            Director                         June 15, 1995

               
        --------------------------------------
                (Robert J. Callander)                              Director                          

                /S/ JAMES A. CANNON
        --------------------------------------                     
                  (James A. Cannon)                                Director                         June 15, 1995

                /S/ PETER I. JONES   
         --------------------------------------                    
                   (Peter I. Jones)                                Director                         June 15, 1995

                 /S/ JOHN R. PURCELL                    
         --------------------------------------                    Director                         June 15, 1995
                   (John R. Purcell)    

                 /S/ KEITH L. REINHARD                                 
         --------------------------------------                    Director                         June 15, 1995
                  (Keith L. Reinhard)        
                            
                /S/ ALLEN ROSENSHINE                               Director                         June 15, 1995
         --------------------------------------
                  (Allen Rosenshine)   
                                 
                 /S/ GARY L. ROUBOS                                Director                         June 15, 1995
         --------------------------------------
                   (Gary L. Roubos)         

                             
         --------------------------------------                    Director
                (Quentin I. Smith, Jr.)    
                              
                 /S/ ROBIN B. SMITH                                                  
         --------------------------------------                    Director                         June 15, 1995
                   (Robin B. Smith)

                /S/ WILLIAM G. TRAGOS                  
         --------------------------------------                    Director                         June 15, 1995
                  (William G. Tragos)  

                  /S/ JOHN D. WREN
         --------------------------------------                    Director                         June 15, 1995
                   (John D. Wren)   
  
                 /S/ EGON P.S. ZEHNDER                 
         --------------------------------------                    Director                         June 15, 1995
                  (Egon P.S. Zehnder)                                    
</TABLE>


                                      II-4
<PAGE>

                          EXHIBIT INDEX

Exhibit
   No.                      Description                                  Page
- --------                    -----------                                  ----
  2.1    Agreement and Plan of Merger dated as of June 15, 1995,
         among Omnicom Group Inc., RRC Acquisition Inc. and Ross
         Roy Communications, Inc.

  2.2    Form of Escrow Agreement among Omnicom Group Inc., Ross
         Roy Communications, Inc., the Ross Roy Shareholder
         Representative, and The Chase Manhattan Bank, N.A. as
         Escrow Agent

  5.1*   Opinion of Davis & Gilbert as to the legality of the
         Omnicom Common Stock registered hereunder

  8.1*   Opinion of Deloitte & Touche LLP regarding tax matters

  8.2    Form of opinion of McDonald & Company Securities, Inc.
         as to the fairness from a financial point of view, of
         the Merger

  23.1   Consent of Arthur Andersen LLP as to financial
         statements of Omnicom Group Inc.

  23.2   Consent of Deloitte & Touche LLP as to financial
         statements of Ross Roy Communications, Inc.

  23.3   Consent of Davis & Gilbert (included in Exhibit 5.1)

  23.4   Consent of Deloitte & Touche LLP

  23.5   Consent of McDonald & Company Securities, Inc.

  24     Power of Attorney (included on signature page)
- --------------
*  To be filed by amendment.



                                                                     Exhibit 2.1


                          AGREEMENT AND PLAN OF MERGER

                                  by and among

                              OMNICOM GROUP INC.,

                              RRC ACQUISITION INC.

                                      and

                         ROSS ROY COMMUNICATIONS, INC.


                              Dated June 15, 1995


<PAGE>
                                                     
                               TABLE OF CONTENTS


                                   ARTICLE I
                                   THE MERGER

Section 1.1       The Merger...............................................   2
Section 1.2       Effective Time...........................................   2
Section 1.3       Articles of Incorporation and By-Laws of the Surviving
                  Corporation..............................................   2
        1.3.1     Articles of Incorporation................................   2
        1.3.2     By-Laws..................................................   2
Section 1.4       Directors and Officers of the Surviving Corporation......   2
        1.4.1     Directors of the Surviving Corporation...................   2
        1.4.2     Officers of the Surviving Corporation....................   3


                                   ARTICLE II
                        MERGER CONSIDERATION; CONVERSION
                    OR CANCELLATION OF SHARES IN THE MERGER

Section 2.1       Conversion Price; Market Value...........................   3
        2.1.1     Conversion Price.........................................   3
        2.1.2     Market Value.............................................   3
Section 2.2       Consideration for the Merger; Conversion or
                    Cancellation of Stock in the Merger....................   4
Section 2.3       Surrender of Company Stock and Issuance of 
                    Omnicom Stock..........................................   5
Section 2.4       No Fractional Shares.....................................   5
Section 2.5       Dividends................................................   6
Section 2.6       Certificates in Stockholder's Name.......................   6
Section 2.7       Closing..................................................   6
Section 2.8       Escrow Agreement.........................................   6
Section 2.9       Payment of Obligations to EPU Holder.....................   7
Section 2.10      Payment of Obligations ot Former Eligible
                    Employee Holders.......................................   8


                                  ARTICLE III
                         REPRESENTATIONS OF THE COMPANY

Section 3.1       Execution and Validity of Agreement......................   8
Section 3.2       Capitalization, Existence and Good Standing of
                  the Company..............................................   8
        3.2.1     Capitalization...........................................   8
        3.2.2     Existence and Good Standing..............................   9
Section 3.3       Subsidiaries and Investments.............................   9

                                       i

<PAGE>

Section 3.4       Financial Statements and No Material Changes.............  10
Section 3.5       Books and Records........................................  11
Section 3.6       Title to Properties; Encumbrances........................  11
Section 3.7       Owned and Leased Real Property and Leased 
                  Personal Property........................................  12
        3.7.1     Real Property and Personal Property Leases...............  12
        3.7.2     Owned Real Property......................................  13
        3.7.3     Environmental Matters....................................  13
Section 3.8       Contracts................................................  14
Section 3.9       Restrictive Documents....................................  15
Section 3.10      Litigation...............................................  16
Section 3.11      Taxes....................................................  16
        3.11.1    Taxes....................................................  16
        3.11.2    Additional Representations...............................  18
Section 3.12      Liabilities..............................................  18
Section 3.13      Insurance................................................  18
Section 3.14      Intellectual Properties..................................  18
Section 3.15      Compliance with Laws; Licenses and Permits...............  19
        3.15.1    Compliance...............................................  19
        3.15.2    Licenses.................................................  19
Section 3.16      Client Relations.........................................  20
Section 3.17      Accounts Receivable; Work-in-Process; Accounts Payable...  20
Section 3.18      Employment Relations.....................................  20
Section 3.19      Employee Benefit Matters.................................  21
        3.19.1    List of Plans............................................  21
        3.19.2    Multi-Employer Plans.....................................  22
        3.19.3    Severance................................................  22
        3.19.4    Welfare Benefit Plans....................................  22
        3.19.5    Administrative Compliance................................  22
        3.19.6    Tax Qualification........................................  23
        3.19.7    Funding; Excise Taxes....................................  23
        3.19.8    Tax Deductions...........................................  23
        3.19.9    Additional Representations...............................  24
Section 3.20      Interests in Customers, Suppliers, Etc...................  24
Section 3.21      Bank Accounts and Powers of Attorney.....................  24
Section 3.22      Compensation of Employees................................  24
Section 3.23      No Changes Since the Balance Sheet Date..................  25
Section 3.24      Required Approvals, Notices and Consents.................  26
Section 3.25      Corporate Controls.......................................  26
Section 3.26      Information Supplied.....................................  26
Section 3.27      Brokers..................................................  27
Section 3.28      Opinion of Financial Advisor.............................  27
Section 3.29      Copies of Documents; Schedules...........................  27

                                       ii

<PAGE>

                                   ARTICLE IV
                     REPRESENTATIONS OF OMNICOM AND OMNISUB

Section 4.1       Existence and Good Standing..............................  27
Section 4.2       Execution and Validity of Agreements.....................  27
Section 4.3       Restrictive Documents....................................  28
Section 4.4       Omnicom Stock............................................  28
Section 4.5       Financial Statements and No Material Changes.............  28
Section 4.6       Litigation...............................................  29
Section 4.7       Consents and Approvals of Governmental Authorities.......  29
Section 4.8       Brokers..................................................  29
Section 4.9       Information Supplied.....................................  29
Section 4.10      OmniSub..................................................  30
Section 4.11      Copies of Documents; Schedules...........................  30


                                   ARTICLE V
                            COVENANTS OF THE COMPANY

Section 5.1       Regulatory and Other Approvals...........................  30
Section 5.2       HSR Filings..............................................  31
Section 5.3       Full Access..............................................  31
Section 5.4       No Solicitations.........................................  31
Section 5.5       Conduct of Business......................................  32
Section 5.6       Financial Information....................................  34
Section 5.7       Notice and Cure..........................................  35
Section 5.8       Termination of Pension Plan..............................  35
Section 5.9       Consultation.............................................  35
Section 5.10      Company Stockholder Approval.............................  35
Section 5.11      Tax Returns..............................................  36
Section 5.12      Fulfillment of Conditions................................  36
Section 5.13      Repayment of Indebtedness; Removal of Guarantee..........  37
Section 5.14      Stock Repurchase Agreements..............................  37


                                   ARTICLE VI
                        COVENANTS OF OMNICOM AND OMNISUB

Section 6.1       Regulatory and Other Approvals...........................  37
Section 6.2       HSR Filings..............................................  38
Section 6.3       Financial Information and Reports........................  38
Section 6.4       Notice and Cure..........................................  38

                                      iii

<PAGE>

Section 6.5       Fulfillment of Conditions................................  38
Section 6.6       Blue Sky; New York Stock Exchange Listing................  39
Section 6.7       Exchange Act Filings.....................................  39
Section 6.8       Indemnification of Directors and Officers................  39


                                  ARTICLE VII
                                MUTUAL COVENANTS

Section 7.1       Preparation of Registration Statement....................  40
Section 7.2       Affiliates' Representation Letters.......................  40
Section 7.3       Reasonable Efforts to Consummate Transaction.............  40
Section 7.4       Public Announcements.....................................  40


                                  ARTICLE VIII
                CONDITIONS TO OBLIGATIONS OF OMNICOM AND OMNISUB

Section 8.1       Representations and Warranties...........................  41
Section 8.2       Good Standing Certificates...............................  41
Section 8.3       Performance..............................................  41
Section 8.4       Certified Resolutions....................................  41
Section 8.5       No Litigation............................................  42
Section 8.6       Regulatory Consents and Approvals........................  42
Section 8.7       Registration Statement; New York Stock 
                    Exchange Listing.......................................  42
Section 8.8       Company Stockholder Approval.............................  42
Section 8.9       Required Approvals, Notices and Consents.................  42
Section 8.10      Pooling of Interests Accounting..........................  42
Section 8.11      Opinion of Counsel.......................................  42
Section 8.12      Escrow Agreement.........................................  43
Section 8.13      Employment Agreements....................................  43
Section 8.14      Non-Competition Agreements...............................  43
Section 8.15      Affiliates Representation Letters........................  43
Section 8.16      Material Adverse Effect..................................  43
Section 8.17      Proceedings..............................................  43
Section 8.18      No Withholding Certificate...............................  43


                                   ARTICLE IX
                    CONDITIONS TO OBLIGATIONS OF THE COMPANY

Section 9.1       Representations and Warranties...........................  44
Section 9.2       Good Standing Certificates...............................  44

                                       iv

<PAGE>

Section 9.3       Performance..............................................  44
Section 9.4       Certified Resolutions....................................  44
Section 9.5       No Litigation............................................  44
Section 9.6       Regulatory Consents and Approvals........................  44
Section 9.7       Registration Statement, New York Stock 
                    Exchange Listing.......................................  45
Section 9.8       Company Stockholder Approval.............................  45
Section 9.9       Opinion of Counsel.......................................  45
Section 9.10      Escrow Agreement.........................................  45
Section 9.11      Material Adverse Effect..................................  45
Section 9.12      Fairness Opinion.........................................  45
Section 9.13      Proceedings..............................................  45


                                   ARTICLE X
                             ADDITIONAL AGREEMENTS

Section 10.1      Termination..............................................  46
Section 10.2      Effect of Termination....................................  47


                                   ARTICLE XI
                           SURVIVAL; INDEMNIFICATION

Section 11.1      Survival.................................................  47
Section 11.2      Obligation to Indemnify..................................  47
Section 11.3      Indemnification Procedures...............................  48
        11.3.1    Notice of Asserted Liability.............................  48
        11.3.2    Defense of Asserted Liability............................  48
        11.3.3    Cooperation..............................................  49
Section 11.3.4    Settlements..............................................  49
Section 11.4      Limitations on Indemnification...........................  49
        11.4.1    Indemnity Cushion........................................  49
        11.4.2    Termination of Indemnification Obligations 
                    and Other Limitations..................................  49
        11.4.3    Treatment................................................  50
        11.4.4    Effect of Taxes..........................................  50


                                  ARTICLE XII
                                 MISCELLANEOUS

Section 12.1      Expenses.................................................  50
Section 12.2      Governing Law............................................  50
Section 12.3      Person Defined...........................................  51

                                       v

<PAGE>

Section 12.4      Knowledge Defined........................................  51
Section 12.5      Affiliate Defined........................................  51
Section 12.6      Captions.................................................  51
Section 12.7      Confidentiality..........................................  51
Section 12.8      Notices..................................................  51
Section 12.9      Parties in Interest......................................  53
Section 12.10     Severability.............................................  53
Section 12.11     Counterparts.............................................  53
Section 12.12     Entire Agreement.........................................  53
Section 12.13     Amendment................................................  53
Section 12.14     Third Party Beneficiaries................................  53
Section 12.15     Extension; Waiver........................................  53


                                       vi

<PAGE>


                                    EXHIBITS

            Exhibit A           Escrow Agreement
            Exhibit B           Affiliates Representation Letter
            Exhibit C           Opinion of Dykema Gosset PLLC
            Exhibit D           Form Non-Competition Agreement
            Exhibit E           Opinion of Davis & Gilbert

                                    ANNEXES

            Annex I             Additional Tax Representations
            Annex II            Additional Employee Benefit Plan Representations

                                   SCHEDULES

            Schedule 1.4        Directors and Officers
            Schedule 3.2        Capitalization
            Schedule 3.3        Subsidiaries
            Schedule 3.4        Financial Statements
            Schedule 3.5        Books and Records
            Schedule 3.6        Title to Properties; Encumbrances
            Schedule 3.7.1      Leases
            Schedule 3.7.2      Owned Real Property
            Schedule 3.7.3      Environmental Matters
            Schedule 3.8        Contracts
            Schedule 3.9        Restrictive Documents
            Schedule 3.10       Litigation
            Schedule 3.11       Taxes
            Schedule 3.11.1     Leases
            Schedule 3.13       Insurance
            Schedule 3.14       Intellectual Properties
            Schedule 3.16       Client Relations
            Schedule 3.19       Employee Benefit Plans
            Schedule 3.20       Interests in Customers; Suppliers
            Schedule 3.21       Bank Accounts and Powers of Attorney
            Schedule 3.22       Compensation of Employees
            Schedule 3.23       Changes Since the Balance Sheet Date
            Schedule 3.24       Approvals, Notices and Consents of Company
            Schedule 3.27       Brokers
            Schedule 4.7        Approvals, Notices and Consents of Purchaser
            Schedule 5.5        Conduct of Business
            Schedule 8.13       Employment Agreements
            Schedule 8.14       Non-Competition Agreements

                                       i

<PAGE>

                             Index of Defined Terms

Term                                                                       Page
- ----                                                                       ----

Acquisition Proposal....................................................
Additional Escrow Fund..................................................
Advisors................................................................
Affiliate...............................................................
Agreement...............................................................
Asserted Liability......................................................
Balance Sheet...........................................................
Balance Sheet Date......................................................
Certificate of Merger...................................................
Claims Notice...........................................................
Closing.................................................................
Closing Date............................................................
Code....................................................................
Company.................................................................
Company Affiliates......................................................
Company Stock...........................................................
Conversion Price........................................................
Effective Time..........................................................
Environmental Laws......................................................
EPU Holder..............................................................
EPU Plan................................................................
ERISA...................................................................
Escrow Agent............................................................
Escrow Agreement........................................................
Exchange Act............................................................
Exchange Ratio..........................................................
Execution Date..........................................................
Former Eligible Employee Holders/FS.....................................
GAAP....................................................................
General Escrow Fund.....................................................
Hazardous Material......................................................
HSR Act.................................................................
Indemnified Parties.....................................................
Information Statement...................................................
Intellectual Property...................................................
Knowledge...............................................................
Leases..................................................................

                                       i

<PAGE>

Letter of Transmittal...................................................
Liabilities.............................................................
Licenses................................................................
Liens...................................................................
Losses..................................................................
Market Value............................................................
Material Adverse Effect.................................................
MBCA....................................................................
Merger..................................................................
Omnicom.................................................................
Omnicom Certificates....................................................
Omnicom Stock...........................................................
OmniSub.................................................................
Options.................................................................
OS......................................................................
Owned Real Property.....................................................
PBGC....................................................................
Pension Plan............................................................
Permitted Lien..........................................................
Person..................................................................
Plan....................................................................
Potential Acquiror......................................................
Prospectus Materials....................................................
Registration Statement..................................................
Related Group...........................................................
Representative..........................................................
Repurchased Shares/FSS..................................................
Requirements of Law.....................................................
RP......................................................................
SEC.....................................................................
SEC Reports.............................................................
Securities Act..........................................................
Stockholders............................................................
Subsidiary..............................................................
Surviving Corporation...................................................
Taxes...................................................................
Tax Gross-Up Factor/G...................................................
Termination Date........................................................
Third Party Claim.......................................................
Title IV Plan...........................................................
Transaction Costs.......................................................
VAT.....................................................................


                                       ii

<PAGE>

                          AGREEMENT AND PLAN OF MERGER

     AGREEMENT  AND PLAN OF MERGER  (the  "Agreement")  dated June 15, 1995 (the
"Execution  Date") by and  among  OMNICOM  GROUP  INC.,  a New York  corporation
("Omnicom");  RRC  ACQUISITION  INC., a Michigan  corporation  and  wholly-owned
subsidiary of Omnicom ("OmniSub"); and ROSS ROY COMMUNICATIONS, INC., a Michigan
corporation (the "Company").

                             W I T N E S S E T H :

     WHEREAS,  the authorized capital stock of the Company consists of 2,000,000
shares of Class A Common  Stock,  $1.00 par value per share,  of which as of May
22, 1995,  345,453  shares were issued and  outstanding,  and 200,000  shares of
Class B Common  Stock,  $1.00 par value per share,  of which as of May 22, 1995,
54,800 shares were issued and outstanding;

     WHEREAS,  the authorized capital stock of OmniSub consists of 200 shares of
common stock, of which 100 shares are issued and outstanding;

     WHEREAS,  the Boards of Directors of Omnicom,  OmniSub and the Company each
have  determined  that  it  is  in  the  best  interests  of  their   respective
shareholders  for OmniSub to merge with and into the Company  upon the terms and
subject to the conditions of this Agreement;

     WHEREAS,  for federal  income tax purposes,  it is intended that the Merger
(as defined in Section 1.1) shall qualify as a reorganization within the meaning
of Section 368(a) of the Internal Revenue Code of 1986, as amended (the "Code");
and

     WHEREAS,   Omnicom,   OmniSub  and  the  Company  desire  to  make  certain
representations,  warranties,  covenants and  agreements in connection  with the
Merger.

     NOW, THEREFORE, in consideration of the mutual representations, warranties,
covenants  and  agreements  set forth herein,  Omnicom,  OmniSub and the Company
hereby agree as follows:

                                       1

<PAGE>

                                   ARTICLE I

                                   THE MERGER

     Section  1.1  The  Merger. Subject  to the  terms  and  conditions  of this
Agreement,  at the Effective Time (as defined in Section 1.2),  OmniSub shall be
merged with and into the Company and the separate corporate existence of OmniSub
shall  thereupon  cease (the  "Merger").  The Company  shall be the successor or
surviving  corporation  in  the  Merger  (sometimes  herein  referred  to as the
"Surviving Corporation"), shall continue to be governed by the laws of the State
of Michigan,  and the separate  corporate  existence of the Company with all its
rights, privileges,  immunities, powers and franchises shall continue unaffected
by the Merger. The Merger shall have the effects specified in Section 724 of the
Michigan Business Corporation Act (the "MBCA").

     Section 1.2  Effective Time. Omnicom, OmniSub and the Company will cause an
appropriate  Certificate of Merger (the  "Certificate of Merger") to be executed
and  filed on the date of the  Closing  (as  defined  in  Section  2.7) with the
Michigan  Department  of Commerce  as  provided in Section 707 of the MBCA.  The
Merger shall become effective on the date on which the Certificate of Merger has
been duly filed with the  Michigan  Department  of  Commerce  or such time as is
agreed upon by the parties and specified in the Certificate of Merger,  and such
time is hereinafter referred to as the "Effective Time."

     Section  1.3  Articles  of  Incorporation  and  By-Laws  of  the  Surviving
Corporation.

     1.3.1  Articles of  Incorporation.  The  Articles of  Incorporation  of the
Surviving  Corporation  shall be amended and restated at and as of the Effective
Time to read as did the Articles of Incorporation of OmniSub  immediately  prior
to the Effective Time (except that the name of the Surviving  Corporation  shall
remain "Ross Roy Communications, Inc.").

     1.3.2 By-Laws. The By-laws of the Surviving Corporation shall be amended at
and as of the Effective  Time to read as did the By-laws of OmniSub  immediately
prior to the  Effective  Time,  and such By-laws shall become the By-laws of the
Surviving Corporation.

     Section 1.4 Directors and Officers of the Surviving Corporation.

     1.4.1  Directors  of  the  Surviving  Corporation.  The  directors  of  the
Surviving  Corporation at the Effective Time shall, from and after the Effective
Time,  be the persons  listed on Schedule 1.4 until their  successors  have been
duly  elected  or  appointed  and  qualified  or  until  their  earlier   death,
resignation or removal in accordance with the Surviving  Corporation's  Articles
of Incorporation and By-laws.

                                       2
<PAGE>

     1.4.2 Officers of the Surviving Corporation.  The officers of the Surviving
Corporation  shall,  from and after the Effective Time, be the persons listed on
Schedule 1.4 until their  successors  have been duly  elected or  appointed  and
qualified or until their death,  resignation  or removal in accordance  with the
Surviving Corporation's Articles of Incorporation and By-laws.

                                   ARTICLE II

                MERGER CONSIDERATION; CONVERSION OR CANCELLATION
                            OF SHARES IN THE MERGER

     Section 2.1 Conversion Price; Market Value.

     2.1.1 Conversion  Price. The "Conversion  Price" or "CP" shall be an amount
calculated as follows:

                  CP  =  52,000,000 + RP(FSS) +  216,200G
                         --------------------------------
                                 OS + 10,000G +FSS

For purposes of this Article II, the  following  terms shall have the  following
meanings:

     "RP"  represents  the  repurchase  price per share  originally  paid to the
     Former Eligible Employee Holders,  as such term is defined in the Company's
     Articles of Incorporation as in effect  immediately  prior to the Effective
     Time ("Former Eligible Employee Holders" or "FS").

     "FSS" or  "Repurchased  Shares"  represents  the total  number of shares of
     Company Stock repurchased from the FS.

     "G" represents the "tax gross-up  factor" based upon tax rates described in
     the Company's 1984 Equity  Participation  Plan (the "EPU Plan";  the equity
     participation  units granted  thereunder the "EPUs"; and the holder of such
     EPUs the "EPU Holder").

     "OS"  represents  the number of shares of Company Stock  outstanding at the
     Effective Time of the Merger,  which  outstanding  shares shall not include
     any shares  repurchased by the Company from an employee  shareholder  whose
     employment has terminated or shall terminate prior to the Effective Time.

     2.1.2 Market Value. The term "Market Value" as used in this Agreement shall
be the average of the  closing  prices per share of the common  stock,  $.50 par
value, of Omnicom  ("Omnicom Stock") reported on the New York Stock Exchange for

                                       3
<PAGE>

the 20 consecutive  trading days ending two business days  immediately  prior to
the Closing  Date.  The closing price for each day shall be the closing price on
the New York Stock Exchange  Consolidated Tape (or any successor  composite tape
reporting  transactions  on the New York Stock Exchange) or, if such a composite
tape shall not be in use or shall not report  transactions in the Omnicom Stock,
or if the Omnicom Stock shall be listed on a stock  exchange  other than the New
York Stock Exchange,  the last reported sales price regular way on the principal
national  securities  exchange  on which the  Omnicom  Stock  shall be listed or
admitted to trading  (which shall be the national  securities  exchange on which
the greatest  number of shares of the Omnicom  Stock has been traded during such
twenty  consecutive  business  days),  or,  in  either  case,  if  there  is  no
transaction on any such day, the average of the bid and asked prices regular way
on such day. The New York Stock  Exchange  closing  prices of the Omnicom  Stock
used in determining the Market Value, as provided above,  shall be appropriately
adjusted  for the effect of any  recapitalization,  reclassification,  split-up,
stock  dividend,  combination or reverse split with respect to the Omnicom Stock
which occurs  during the 20  consecutive  trading days ending two business  days
immediately preceding the Closing Date.

     Section 2.2  Consideration  for the Merger;  Conversion or  Cancellation of
Stock in the Merger. The manner of converting or canceling shares of the Company
and OmniSub in the Merger shall be as follows:

     (a) At the Effective  Time,  each share of Class A common stock,  $1.00 par
value,  and each share of Class B common stock,  $1.00 par value, of the Company
("Company Stock") issued and outstanding immediately prior to the Effective Time
shall,  by virtue of the Merger and without any action on the part of the holder
thereof,  be canceled and converted  into and represent the right to receive the
number of shares, subject to Section 2.4 (the "Exchange Ratio") of Omnicom Stock
which shall equal the Conversion  Price as determined by using the Market Value.
All of such  shares of Company  Stock shall no longer be  outstanding  and shall
automatically  be retired and cease to exist,  and each holder of a  certificate
representing  such shares shall cease to have any rights with  respect  thereto,
except the right to receive the shares of Omnicom  Stock and any cash in lieu of
fractional  shares of the  Omnicom  Stock to be issued or paid in  consideration
thereof  (determined in accordance  with Section 2.4, upon the surrender of such
certificate in accordance with Section 2.3, without interest).

     (b) At the Effective Time, each share of common stock of OmniSub issued and
outstanding  immediately  prior to the  Effective  Time shall,  by virtue of the
Merger and without any action on the part of OmniSub or the holder  thereof,  be
converted  into the same  number  of shares  of  common  stock of the  Surviving
Corporation.


                                       4
<PAGE>

     Section 2.3  Surrender of Company Stock and Issuance of Omnicom  Stock.  At
the  Closing,  or as soon as  practicable  thereafter,  each holder of record of
shares of Company Stock at the Effective Time shall surrender the certificate or
certificates  representing  such  shares  of  Company  Stock to  Chemical  Bank,
Omnicom's transfer agent, together with a duly executed letter of transmittal in
a  form  mutually  acceptable  to  Omnicom  and  the  Company  (the  "Letter  of
Transmittal"),  which certificate or certificates  shall be duly endorsed in the
manner described in such Letter of Transmittal. In exchange therefor, subject to
the provisions of the Escrow Agreement  described in Section 2.8 below,  each of
the Company's stockholders shall receive, on or as soon as practicable after the
Closing Date, a certificate  or  certificates  representing  the number of whole
shares of Omnicom Stock into which the shares of the Company  Stock  theretofore
represented by the certificate or  certificates  so surrendered  shall have been
converted and  exchanged as provided in Section 2.2,  and, in addition,  cash in
lieu of any fractional shares of Omnicom Stock as provided in Section 2.4 below,
and the certificate(s) so surrendered shall forthwith be canceled.  Prior to the
Closing Date,  Omnicom shall  requisition from Chemical Bank a sufficient number
of stock certificates (the "Omnicom Certificates") representing the total number
of shares of Omnicom Stock to which the stockholders of the Company are entitled
as provided in Section 2.2 above. On the Closing Date, subject to the provisions
of Section 2.8,  Omnicom  shall direct  Chemical  Bank  pursuant to  irrevocable
instructions  reasonably  acceptable to the Company to mail each  stockholder of
the Company upon receipt by Chemical Bank of an executed  Letter of  Transmittal
from such  stockholder,  by first-class mail in accordance with the instructions
of such  stockholder  as set forth in his Letter of  Transmittal,  such  Omnicom
Certificates,  together with the cash payment in lieu of  fractional  shares (if
any) that such  stockholder  is entitled to receive  pursuant to Section 2.4. If
any  stockholder  shall  report to Chemical  Bank that his failure to  surrender
certificates  representing shares of Company Stock registered in his name is due
to the loss,  misplacement or destruction of such a certificate or certificates,
Omnicom  shall  require  such  stockholder  to furnish an  affidavit of loss and
indemnity  satisfactory  to it. Upon receipt by Chemical Bank of such  affidavit
and  indemnity,  such  stockholder  shall be  entitled  to receive  the  Omnicom
Certificates  and cash in lieu of  fractional  shares,  if any,  to  which  such
stockholder is entitled  pursuant to the terms of this Article II and such lost,
misplaced  or  destroyed  certificate(s)  shall  forthwith  be  canceled.  Until
surrendered as  contemplated  by this Section 2.3, each  certificate  evidencing
shares of Company Stock shall be deemed at any time after the Effective Time for
all corporate  purposes of Omnicom,  except as limited by Section 2.5 below,  to
represent  ownership  of the  number of shares of  Omnicom  Stock into which the
number of  shares  of  Company  Stock  shown  thereon  have  been  converted  as
contemplated by this Article II.

     Section  2.4  No  Fractional  Shares. In  order to avoid  the  expense  and
inconvenience of issuing fractional shares,  neither  certificates nor scrip for
fractional  shares of Omnicom  Stock will be issued,  but in lieu  thereof  each
holder of shares of Company  Stock who  otherwise  would have been entitled to a
fraction  of a share  of  Omnicom  Stock  will be paid  the  cash  value of such
fraction of a share based upon the Conversion Price. Prior to the Closing Date,


                                       5
<PAGE>

Omnicom shall make  available to Chemical  Bank cash in an amount  sufficient to
make the payments in lieu of fractional shares.

     Section  2.5  Dividends.  Omnicom  will  not pay any  dividend  or make any
distribution  on the Omnicom Stock (with a record date at or after the Effective
Time) to any record  holder of Company  Stock  until the holder  surrenders  for
exchange his or its certificates.  Omnicom instead will pay the dividend or make
the distribution to Chemical Bank in trust for the benefit of the holder pending
surrender and exchange.  In no event,  however, will any holder of Company Stock
be entitled to any interest or earnings on the dividend or distribution  pending
receipt.  Neither Chemical Bank nor any party hereto shall be liable to a holder
of Company Stock for any Omnicom Stock or dividends thereon,  or cash in lieu of
fractional  Omnicom  Stock,  delivered  to a  public  official  pursuant  to the
applicable  escheat law. Chemical Bank shall not be entitled to vote or exercise
any rights of ownership  with respect to the Omnicom  Stock held by it.  Omnicom
shall pay all charges and expenses of Chemical Bank.

     Section 2.6 Certificates in Stockholder's Name.

     Section 2.7 Closing.  The closing of the Merger (the "Closing")  shall take
place (i) at the offices of Dykema  Gossett PLLC,  1577 North  Woodward  Avenue,
Suite 300,  Bloomfield  Hills,  Michigan  48304, at 10:00 a.m. local time on the
fifth  business day following the date on which the last of the  conditions  set
forth in Articles  VIII and IX hereof shall be fulfilled or waived in accordance
with this  Agreement,  or (ii) at such other  place  and/or  time and/or on such
other date as Omnicom and the Company shall agree (the "Closing Date").

     Section 2.8 Escrow Agreement. Solely to fund and secure the indemnification
obligations  described  in Section  11.2,  at the Closing  Omnicom  shall direct
Chemical  Bank for and on behalf of the Company's  stockholders,  the EPU Holder
and the Former Eligible Employee Holders to deliver to The Chase Manhattan Bank,
N.A.,  as escrow  agent (the "Escrow  Agent")  from the shares of Omnicom  Stock
issuable to the  stockholders  under  Section  2.2(a),  to the EPU Holder  under
Section 2.9 and to the Former Eligible  Employee Holders under Section 2.10, (i)
shares of  Omnicom  Stock (for each  stockholder,  the EPU Holder and the Former
Eligible Employee Holders rounded-up to the nearest whole share) having a Market
Value of $2,525,000 to be held in an account (the "General Escrow Fund") created
pursuant to the terms of that certain Escrow Agreement (the "Escrow  Agreement")
in  the  form  attached  hereto  as  Exhibit  A  among  Omnicom,  the  Surviving
Corporation, the Escrow Agent and the Representative (as defined in Section 5.10
hereof) and (ii) shares of Omnicom Stock (for each  stockholder,  the EPU Holder
and the Former Eligible Employee Holders rounded-up to the nearest share) having
a Market Value of  $1,300,000 to be held in an account (the  "Additional  Escrow
Fund")  created  pursuant  to the  terms of the  Escrow  Agreement.  Each of the


                                       6
<PAGE>

Company's stockholders,  the EPU Holder and the Former Eligible Employee Holders
shall be depositing  his pro-rata share of the General Escrow Fund or Additional
Escrow Fund  determined  by  multiplying  the total  number of shares of Omnicom
Stock  required to deposited  into such Escrow Fund to create in the case of the
General Escrow Fund an escrow account having a Market Value of $2,525,000 and in
the case of the  Additional  Escrow Fund an escrow account having a Market Value
of  $1,300,000  times a fraction,  the numerator of which is number of shares of
Omnicom Stock  issuable to such Person under  Sections 2.2 (a), 2.9 and 2.10, as
the case may be, and the  denominator  of which is the total number of shares of
Omnicom Stock issuable to all such Persons under such Sections.

     Section 2.9 Payment of  Obligations  to EPU  Holder.  On the Closing  Date,
Omnicom shall satisfy the obligation of the Company to the EPU Holder in respect
of the  10,000  EPUs  which  will  be  outstanding  at the  Effective  Time,  by
delivering  to the EPU Holder whole shares of Omnicom  Stock  (rounded up to the
nearest whole share) having an aggregate Market Value equal to "G x (10,000(CP -
$21.62)),"  subject to the  obligation  of the EPU  Holder to deliver  shares of
Omnicom  Stock  (rounded up to the nearest  whole  share) to the Escrow Agent as
described in Section 2.8 above.  On the Execution  Date,  the EPU Holder entered
into an  agreement  with the  Company,  Omnicom and OmniSub  under which the EPU
Holder agreed, conditioned only upon the occurrence of the Closing hereunder, to
the following:  (i) the  satisfaction of the Company's  obligations to him under
the EPU Plan by payment of Omnicom Stock in the amount described above, (ii) the
transfer to the Escrow Agent of whole shares of Omnicom Stock in accordance with
the provisions of Section 2.8 and the Escrow  Agreement solely to fund (pro rata
with the stockholders of the Company and the Former Employee Holders) and secure
the  indemnification  obligations  described in Section 11.2 below and (iii) the
appointment of the  Representative  or his successor as determined in accordance
with the stockholder  resolution referred to in Section 5.10, as his agent under
the Escrow  Agreement,  and authorizing the  Representative  to: (A) execute and
deliver the Escrow  Agreement and any documents  incident or ancillary  thereto,
including  without  limitation,  any  amendments,  cancellations,  extensions or
waivers in respect thereof, (B) respond to and make determinations in respect of
the  assertion  of any and all claims for  indemnification  by  Omnicom,  and to
assert claims,  pursuant to the terms of the Escrow Agreement and the provisions
of this Agreement  pertaining thereto,  (C) execute and deliver any stock powers
which may be required  to be executed by him in order to permit the  delivery to
Omnicom of any  shares of  Omnicom  Stock to be  delivered  to Omnicom  from the
General  Escrow Fund and/or the  Additional  Escrow Fund in accordance  with the
provisions of the Escrow Agreement and (D) take all such other actions as may be
necessary or desirable to carry out his  responsibilities  as  Representative in
respect of the Escrow Agreement.


                                       7
<PAGE>

     Section 2.10 Payment of Obligations to Former Eligible Employee Holders. In
order to satisfy the obligations of the Company to each Former Eligible Employee
Holder under  section F.7 of the  Company's  Articles of  Incorporation,  on the
Closing Date Omnicom shall deliver to each Former  Eligible  Employee  Holder or
his  fiduciary  (as defined in the Company's  Articles of  Incorporation)  whole
shares of Omnicom  Stock  (rounded  up to the  nearest  whole  share)  having an
aggregate  Market  Value equal to (1) the product of (x) the number of shares of
Company Stock  repurchased from such Former Eligible Employee Holder pursuant to
section  F of the  Company's  amended  Articles  of  Incorporation  and  (y) the
Conversion  Price,  less (2) the aggregate  Repurchase  Price (as defined in the
Company's Articles of Incorporation)  paid in respect of such reacquired shares,
subject to the  obligation of such Former  Eligible  Employee  Holder to deliver
shares of Omnicom  Stock  (rounded up to the nearest  whole share) to the Escrow
Agent as described in Section 2.8 above.


                                  ARTICLE III

                         REPRESENTATIONS OF THE COMPANY

     The  Company  represents  and  warrants  to Omnicom  and OmniSub as follows
(provided,  however,  that all  representations and warranties as they relate to
Bloomfield  Parkway  Associates are made to the best knowledge,  information and
belief of the Company, other than those representations and warranties contained
in Section 3.7.2 which are not  identified as being made to the best  knowledge,
information and belief of the Company):

     Section 3.1 Execution  and Validity of Agreement.  The Company has the full
corporate  power and  authority to enter into this  Agreement and to perform its
obligations  hereunder,  subject to approval by its  stockholders as provided in
Section 5.10.  The  execution and delivery of this  Agreement by the Company and
the consummation of the transactions contemplated hereby have been authorized by
the Board of Directors of the Company.  This Agreement has been duly and validly
executed and delivered by the Company and, assuming due authorization, execution
and delivery by Omnicom and OmniSub,  constitutes  the legal,  valid and binding
obligation of the Company  enforceable  against it in accordance with its terms,
subject to approval by its stockholders.

     Section 3.2 Capitalization, Existence and Good Standing of the Company.

     3.2.1  Capitalization.   The  Company  has  an  authorized   capitalization
consisting  of  2,000,000  shares of Class A Common  Stock,  $1.00 par value per
share,  of which as of May 22, 1995,  345,453 shares were issued and outstanding
and 200,000 shares of Class B Common Stock,  $1.00 par value per share, of which
as of May 22,  1995,  54,800  shares  were  issued  and  outstanding.  All  such
outstanding  shares have been duly  authorized  and validly issued and are fully
paid and non-assessable and have not been issued in violation of any preemptive


                                       8
<PAGE>

rights of  stockholders.  No other  class of  capital  stock of the  Company  is
authorized or  outstanding.  Except as set forth on Schedule  3.2,  there are no
outstanding options,  warrants, rights (including phantom stock rights or EPUs),
calls,  commitments,  conversion  rights,  rights  of  exchange,  plans or other
agreements of any character (collectively, "Options") providing for the issuance
or sale of any  shares  of the  capital  stock of the  Company,  or  outstanding
agreements or commitments to grant, extend or enter into any Option with respect
thereto,  or outstanding Options providing for settlement in cash. Except as set
forth on Schedule 3.2, there are no outstanding  contractual  obligations of the
Company or any Subsidiary  (as defined in Section 3.3) to repurchase,  redeem or
otherwise  acquire  any  shares of  Company  Stock or any  capital  stock of any
Subsidiary or which provide for the payment of any additional  monies in respect
of the Company's previous  repurchase of any shares of its capital stock. Except
for the 10,000  EPUs  reflected  in item 5 on Schedule  3.2 as of the  Effective
Time, no Options will be outstanding. On the date hereof and as of the Effective
Time,  the  only  Persons  who  own or are  entitled  to own  Company  Stock  or
equivalents  thereof are the stockholders of the Company,  the EPU Holders,  the
Former Eligible  Employee  Holders and the persons listed on items 4, 6 and 7 of
Schedule  3.2.  Schedule  3.2  also  contains  an  accurate  list  of all of the
stockholders  of the Company.  Each such  stockholder is the record owner of the
number of shares of the Company Stock listed  opposite his name in Schedule 3.2.
To the  best  knowledge,  information  and  belief  of the  Company,  each  such
stockholder  is a  resident  of the  state or other  jurisdiction  indicated  on
Schedule 3.2.

     3.2.2  Existence  and Good  Standing.  The  Company is a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Michigan, with the full corporate power and authority to own its property and to
carry on its  business all as and in the places  where such  properties  are now
owned or operated or such business is now being  conducted.  Except as set forth
on  Schedule  3.2,  the Company  has not  qualified  to do business as a foreign
corporation in any  jurisdiction,  and neither the character nor location of the
properties  owned or  leased by the  Company,  nor the  nature  of the  business
conducted by the  Company,  requires  such  qualification  in any  jurisdiction,
except  for such  failures  to be so  qualified  which,  individually  or in the
aggregate,  are not  having  and  could not  reasonably  be  expected  to have a
material  adverse  effect on the  properties,  assets,  condition  (financial or
otherwise),  business,  liabilities  or results of operations of the Company and
its  Subsidiaries  (as  defined  in Section  3.3) taken as a whole (a  "Material
Adverse  Effect").  The  Company  is in good  standing  in each  state  or other
jurisdiction in which it is qualified to do business as a foreign corporation or
foreign branch as set forth on Schedule 3.2.

     Section 3.3 Subsidiaries and Investments.  The term "Subsidiary" as used in
the Agreement shall mean any corporation, partnership, limited liability company
or other  business  entity  of which  50% or more of the  stock or other  equity
interests  entitled to vote for the  election of the board of directors or other
governing  body  thereof  is owned,  directly  or  indirectly,  by the  Company;
provided,  however,  notwithstanding such definition,  it is agreed that for all


                                       9
<PAGE>

purposes of this Agreement the term Subsidiary shall include  Bloomfield Parkway
Associates.  Schedule  3.3  contains  a true  and  complete  list  of all of the
Company's Subsidiaries. Except as set forth in Schedule 3.3, neither the Company
nor any  Subsidiary  owns any  capital  stock or other  equity or  ownership  or
proprietary interest in any corporation,  partnership, association, trust, joint
venture or other entity.  Schedule 3.3 also sets forth the name, jurisdiction of
organization and number of outstanding shares of each of the Subsidiaries, and a
list of all of the  stockholders  of each  Subsidiary  (indicating the number of
shares owned by each such  stockholder).  Except for shares held by a nominee of
the Company or another Subsidiary to satisfy local law requirements, the Company
or another  Subsidiary  owns of record and  beneficially  and has valid title to
that  percentage of the issued and  outstanding  shares of capital stock of each
Subsidiary as set forth on Schedule 3.3, free and clear of all Liens,  except as
set forth on Schedule 3.6. The term "Liens" as used in this Agreement  means any
mortgage,  pledge,  assessment,  security interest,  lease, lien, adverse claim,
levy,  charge,  hypothec or other  encumbrance  of any kind, or any  conditional
sale, agreement, title retention agreement or other agreement to give any of the
foregoing.  Each Subsidiary is a corporation  duly  incorporated  and organized,
validly  existing and in good  standing  under the laws of its  jurisdiction  of
organization,  with the full  corporate  power and authority to own its property
and to carry on its business all as and in the places where such  properties are
now owned or operated or such  business  is now being  conducted.  Except as set
forth on Schedule 3.3, no  Subsidiary  has qualified to do business as a foreign
corporation or an Extra-Provincial corporation in any jurisdiction,  and neither
the  character  nor the  location  of the  properties  owned  or  leased  by the
Subsidiary,  nor the  nature  of the  business  conducted  by  such  Subsidiary,
requires such qualification in any jurisdiction,  except for such failures to be
so qualified which,  individually or in the aggregate,  are not having and could
not reasonably be expected to have a Material Adverse Effect. Each Subsidiary is
in good standing in each state,  Province,  Territory or other  jurisdiction  in
which it is qualified to do business as a foreign  corporation or foreign branch
as set forth on Schedule 3.3.  Except as set forth on Schedule 3.3,  neither the
Company nor any Subsidiary has a branch,  agency, place of business or permanent
establishment  outside of the United States.  All of the  outstanding  shares of
capital stock of each  Subsidiary  have been duly  authorized and validly issued
and are duly paid and  non-assessable,  and have not been issued in violation of
any  preemptive  rights of  Stockholders.  Except as set forth on Schedule  3.3,
there are no outstanding Options,  providing for the purchase,  issuance or sale
of any shares of the capital stock of any Subsidiary or outstanding agreement or
commitment to grant, extend or enter into any Option with respect thereto.

     Section 3.4 Financial Statements and No Material Changes. Schedule 3.4 sets
forth audited consolidated balance sheets of the Company and its subsidiaries as
at December 31,  1992,  1993 and 1994,  and the related  audited  statements  of
operations,  stockholders'  equity  and cash  flows  for the years  then  ended,
reported on by Deloitte & Touche LLP, independent  certified public accountants.
The  consolidated  balance  sheet  of the  Company  and its  subsidiaries  as at
December 31, 1994 is referred to in this Agreement as the "Balance Sheet".  Such


                                       10
<PAGE>

financial  statements,  including the footnotes thereto, are true and correct in
all  material  respects  and have been  prepared in  accordance  with  generally
accepted  accounting  principles  as  applied  in  the  United  States  ("GAAP")
consistently  applied  throughout the periods  indicated  except as set forth on
Schedule 3.4.  Each of the  consolidated  balance  sheets of the Company and its
subsidiaries fairly presents the consolidated  financial position of the Company
and its  subsidiaries  at the  respective  date  thereof and reflects all claims
against and all debts and liabilities of the Company and its subsidiaries, fixed
or contingent,  as at the date thereof, required to be shown thereon under GAAP,
and the related  statements of operations,  stockholders'  equity and cash flows
fairly  present the  consolidated  results of  operations of the Company and its
subsidiaries  and the  stockholders'  equity and cash  flows for the  respective
periods indicated. Except as set forth on Schedule 3.23, since December 31, 1994
(the "Balance  Sheet Date"),  there has been no material  adverse  change in the
properties,  financial  condition,  business  or  results of  operations  of the
Company and its Subsidiaries taken as a whole.

     Section 3.5 Books and Records. All accounts,  books and ledgers material to
the  business  of the  Company  and its  Subsidiaries  have  been  properly  and
accurately  kept and  completed  in all  material  respects,  and  there  are no
material  inaccuracies  or  discrepancies  of any kind  contained  or  reflected
therein. Except as set forth on Schedule 3.5, neither the Company nor any of its
Subsidiaries  have any of its records,  systems,  controls,  data or information
recorded, stored,  maintained,  operated or otherwise wholly or partly dependent
on or held by any means  (including any  electronic,  mechanical or photographic
process,  whether  computerized  or not)  which  (including  all means of access
thereto and therefrom) are not under the exclusive  ownership and direct control
of the Company or such Subsidiary. The Company has delivered to OmniSub complete
and correct copies of the Articles of  Incorporation  and By-laws (or equivalent
charter  documents)  of the  Company  and of each  Subsidiary;  and prior to the
Closing will deliver any approved  amendments,  changes or  restatements of such
instruments.

     Section  3.6  Title  to  Properties;  Encumbrances.  The  Company  and  its
Subsidiaries  have  good and  marketable  title  to,  or  enforceable  leasehold
interests in, as the case may be, (a) all their  properties  and assets owned by
them  (real  and  personal,   tangible  and  intangible),   including,   without
limitation,  all the properties and assets  reflected in the Balance Sheet,  and
(b) all the properties and assets  purchased by the Company and its Subsidiaries
since the Balance Sheet Date except for properties  and assets  reflected in the
Balance  Sheet or acquired  since the Balance  Sheet Date that have been sold or
otherwise disposed of in the ordinary course of business,  free and clear of any
and all Liens, except for Permitted Liens (as hereinafter defined) and for Liens
reflected in the footnotes to the Balance Sheet or set forth in Schedule 3.6. As
used in this  Agreement,  the term  "Permitted  Lien" shall mean:  (i) Liens for
Taxes (as defined in Section 3.11) not  delinquent or for Taxes being  contested
in good faith by  appropriate  proceedings  and as to which  adequate  financial
reserves  have been  established  on the books and  records  of the  Company  in
accordance  with  GAAP;  (ii)  Liens  created  by  operation  of  law,  such  as


                                       11
<PAGE>

materialmen's  liens,  mechanics' liens and other similar liens,  arising in the
ordinary  course of business  and not having a Material  Adverse  Effect;  (iii)
deposits,  pledges or Liens  securing  (x)  obligations  incurred  in respect of
workers'  compensation,  unemployment  insurance or other forms of  governmental
insurance or benefits, (y) the performance of bids, tenders,  leases,  contracts
(other  than  for  the  payment  of  money)  and  statutory  obligations  or (z)
obligations  on surety or appeal  bonds,  but only to the extent such  deposits,
pledges or Liens are  incurred  or  otherwise  arise in the  ordinary  course of
business and secure  obligations which are not past due; or (iv) restrictions on
the use of real property or irregularities in the title thereto which do not (x)
secure  obligations for the payment of money or (y) materially  impair the value
of such  property  or its use by the  Company  or any  Subsidiary  in the normal
conduct of the Company's or such Subsidiary's business.

     Section 3.7 Owned and Leased Real Property and Leased Personal Property.

     3.7.1 Real Property and Personal  Property Leases.  Schedule 3.7.1 contains
an accurate  and  complete  list of all  personal  property  leases with a fixed
annual  rental in excess of $20,000  and all real  property  leases,  subleases,
licenses and other occupancy  agreements  (including,  without  limitation,  any
modification,  amendment  or  supplement  thereto  and  any  other  document  or
agreement  executed or entered  into by Company or a  Subsidiary  in  connection
therewith, such as, without limitation,  non-disturbance agreements and estoppel
certificates) (collectively, "leases") to which the Company or a Subsidiary is a
party,  including without  limitation,  leases which the Company or a Subsidiary
has  subleased  or  assigned  to a third  party and as to which the Company or a
Subsidiary  remains liable.  Each lease set forth on Schedule 3.7.1 (or required
to be set  forth on  Schedule  3.7.1) is valid,  binding  and in full  force and
effect; all rents and additional rents and other sums,  expenses and charges due
to date on each such lease have been paid; in each case,  the lessee has been in
peaceable  possession  since the commencement of the original term of such lease
and no waiver, indulgence or postponement of the lessee's obligations thereunder
has been  granted by the lessor;  and,  except as set forth in  Schedule  3.7.1,
there exists no default or event of default by the Company or any  Subsidiary or
to the best knowledge, information and belief of the Company, by any other party
to such lease;  and there exists no occurrence,  condition or act (including the
Merger  hereunder)  which,  with the giving of notice,  the lapse of time or the
happening of any further event or condition,  would become a default or event of
default under any such lease;  and there are no outstanding  claims of breach or
indemnification  or notice of default or termination of any such lease.  No such
lease is subject and subordinate to any superior lease or mortgage except as set
forth in Schedule 3.7.1 and the Company and its Subsidiaries  hold the leasehold
estate  interest  in all such  leases  free and  clear of all Liens  except  for
Permitted  Liens and except as set forth in Schedule 3.6. Except as set forth on
Schedule 3.7.1, the Company or a Subsidiary is in physical possession and actual
and exclusive occupation of the whole of each of their leased properties.


                                       12
<PAGE>

     3.7.2 Owned Real Property.  Schedule 3.7.2 lists all real property owned by
the Company and its  Subsidiaries  or which the Company or a  Subsidiary  has an
option to purchase ("Owned Real Property").  With respect to each such parcel of
Owned Real Property, and except as set forth on Schedule 3.7.2:

     (a) there are no pending or, to the best knowledge,  information and belief
of the Company, threatened condemnation proceedings,  lawsuits or administrative
actions relating to the Owned Real Property or entities owning same,  materially
and adversely affecting the current or future use, occupancy or value thereof;

     (b) no entity  has an option to  purchase  the Owned  Real  Property  or an
interest therein, except the Company or a Subsidiary, if applicable;

     (c) all facilities have received all approvals of governmental  authorities
(including  material  Licenses,  as  defined  in  Section  3.15.2)  required  in
connection  with the ownership,  operation  thereof,  and have been operated and
maintained in accordance  with  applicable  laws,  rules and  regulations in all
material respects;

     (d) no material  default  exists under any lease  affecting  the Owned Real
Property;

     (e) the Company or its Subsidiaries  maintain  reasonably adequate casualty
and  liability  insurance  with  respect  to their  interests  in the Owned Real
Property and leases;

     (f) no  prior  assessments,  additional  contributions  and  capital  calls
required of the Company or a Subsidiary  or of the equity  partner in Bloomfield
Parkway  Associates  remain unpaid and to the best  knowledge,  information  and
belief of the Company, no assessments,  additional contribution or capital calls
are currently anticipated.

     3.7.3 Environmental Matters. Except as disclosed on Schedule 3.7.3:

     (a) there are no inquiries, litigation or other proceedings pending, or, to
the best knowledge, information and belief of the Company threatened with regard
to the  current or prior  conduct of the  Company's  business  or any Owned Real
Property  with  respect to any law,  regulation  or  ordinance  relating  to the
regulation  or  protection   of  human   health,   safety  or  the   environment
("Environmental  Laws") concerning air, soil or water quality,  or the emission,
discharge, release or threatened release of pollutants,  contaminants, chemicals
or  industrial,  toxic or  hazardous  substances  or wastes or words of  similar
import (collectively, "Hazardous Material") into the environment;


                                       13
<PAGE>

     (b) the Company and its  Subsidiaries  have  operated  their  businesses in
compliance  with all  Environmental  Laws except  where the failure to so comply
would not have a Material Adverse Effect;

     (c) the Owned Real Property are not subject to any judgment,  decree, order
or citation  which relates to or arises out of a violation of any  Environmental
Laws;

     (d) all Licenses which are required under applicable  Environmental Laws in
connection with the conduct of the business of the Company and its  Subsidiaries
have been  obtained.  Each of such  Licenses  is in full  force and  effect.  No
additional  Licenses are required  under any  Environmental  Law relative to any
Owned  Real  Property,  the  failure  of which to obtain  would  have a Material
Adverse Effect;

     (e) to the best  knowledge,  information  and  belief  of the  Company,  no
Hazardous Materials have been recycled, treated, stored, disposed of or released
by the Company or any Subsidiary at any location; and

     (f) no oral or written  notification of a release of Hazardous Materials in
connection   with  the  operation  of  the  business  of  the  Company  and  its
Subsidiaries  has been filed on behalf of the Company or any Subsidiary,  and no
site or facility now owned, or to the best knowledge,  information and belief of
the  Company,  previously  owned,  operated  or  leased  by the  Company  or any
Subsidiary or any of the Owned Real Property is listed or to the best knowledge,
information  and belief of the  Company  proposed  for  listing on any  federal,
state, provincial or local list of sites requiring investigation or clean-up.

     Section  3.8  Contracts.  Schedule  3.8 hereto  contains  an  accurate  and
complete list of the following agreements to which the Company or any Subsidiary
is a party:  (a) all Plans (as such term is defined in  Section  3.19),  (b) any
agreement, contract or commitment relating to capital expenditures which involve
payments  of  $250,000  or more in any  single or related  transaction,  (c) any
agreement, contract or commitment relating to the making of any loan, advance or
investment in any Person,  which in any case involves more than $50,000, (d) any
agreement,  instrument  or  arrangement  evidencing  or  related  in any  way to
indebtedness (excluding  intercompany  indebtedness) for money borrowed or to be
borrowed,  whether  directly  or  indirectly,  by way of  loan,  purchase  money
obligation,  guaranty (other than the endorsement of negotiable  instruments for
collection in the ordinary course of business),  conditional  sale,  purchase or
otherwise,  which in any case  involves  $100,000  or more,  (e) any  management
service,  employment,  consulting or any other smilar type of contract  which is
not cancelable without penalty or other financial  obligation within 30 days and
which has total annual  remuneration  in excess of $100,000,  (f) any agreement,
contract or commitment limiting its freedom to engage in any line of business or
to compete with any other Person,  including  agreements limiting its ability to
take on competitive accounts after the termination thereof or limiting the


                                       14
<PAGE>

ability  of its  affiliates  to take on  competitive  accounts  during  the term
thereof,  but  excluding  standard  exclusivity  requirements  in  agency-client
agreements  entered into in the ordinary course of business,  (g) any agreement,
contract or commitment  not covered by another  clause of this Section 3.8 which
is material to the  businesses  of the Company and its  Subsidiaries  taken as a
whole, (h) any collective bargaining or union agreement,  (i) any agreement with
any  of  its  officers  or  directors  or  stockholders  (including  stockholder
agreements or  indemnification  agreements),  (j) any secrecy or confidentiality
agreement (other than standard  confidentiality  agreements in computer software
license  agreements  or  agency-client  agreements  entered into in the ordinary
course of  business),  (k) any  licensing  or  franchise  agreement  (other than
computer software license agreements),  (l) any agency/client  agreement for the
twenty  largest  current  clients  (measured by  commissions  and fees generated
during 1994), (m) any agreements with media buying services,  provided, however,
commitments to purchase media in the ordinary  course of business do not have to
be set forth on Schedule 3.8, (n) any agreement,  indenture or other  instrument
which  contains  restrictions  with respect to the payment of dividends or other
distributions  in respect of the Company Stock,  (o) all outstanding  promissory
notes to the former  stockholders  of the  Company  in respect of the  Company's
repurchase  of Company  Stock from such  former  stockholders  (together  with a
statement setting forth the outstanding  balance of each such promissory note as
of April 30, 1995, the number of shares of Company Stock held in escrow relating
to each such repurchase and the name of the escrow agent), (p) any joint venture
or  partnership  agreement  involving  a sharing of profits  not  covered by (a)
through  (o)  above;  provided,  however,  that (x)  commitments  to  media  and
production expenses which are fully reimbursable from clients, and (y) estimates
or purchase  orders  given in the  ordinary  course of business  relating to the
execution  of  projects,  do not have to be set  forth  on  Schedule  3.8.  Each
contract,  agreement or commitment  set forth on Schedule 3.8 (or required to be
set forth on  Schedule  3.8) is in full force and  effect,  and there  exists no
default  or event of default by the  Company  or any  Subsidiary  or to the best
knowledge,  information  and  belief  of the  Company,  by any other  party,  or
occurrence,  condition,  or act (including the Merger hereunder) which, with the
giving of  notice,  the  lapse of time or the  happening  of any other  event or
condition,  would become a default or event of default thereunder, and there are
no  outstanding  claims of breach or  indemnification  or notice of  default  or
termination of any such agreements, contracts or commitments.

     Section 3.9  Restrictive Documents. Except for approvals required under the
HSR Act (as  defined in Section  5.2 below) and the MBCA and except as set forth
on Schedule 3.9,  neither the Company nor any of its Subsidiaries is subject to,
or a party to, any charter,  by-law,  mortgage,  Lien, lease,  license,  permit,
agreement,  contract,  instrument,  law,  rule,  ordinance,  regulation,  order,
judgment or decree,  or any other  restriction  of any kind or character,  which
would prevent consummation of the transactions contemplated by this Agreement or
any  other  agreement  entered  into  by any of  them  in  connection  with  the
transactions  contemplated  hereby.  Except as set forth on  Schedule  3.9,  the
execution,  delivery and  performance of this Agreement and the  consummation of
the transactions  contemplated  hereby will not (i) violate any provision of the
charter documents or by-laws of the Company or any  Subsidiaries;  (ii) violate,


                                       15
<PAGE>

conflict with or result in the breach or modification of any of the terms of, or
constitute (or with notice or lapse of time or both constitute) a default under,
or  otherwise  give any  other  contracting  party the  right to  accelerate  or
terminate, any obligation,  contract, agreement, Lien, judgment, decree or other
instrument  to which the Company or any  Subsidiary is a party or by or to which
the Company or any  Subsidiary or any of their assets or properties may be bound
or subject; (iii) violate any order, writ, judgment, injunction, award or decree
of any court,  arbitrator or governmental or regulatory body against, or binding
upon,  the Company or any  Subsidiary or any of their assets or  properties;  or
(iv) result in a violation by the Company or any Subsidiary of any statute,  law
or  regulation  of  any  jurisdiction  which  is  material  to the  business  or
operations of the Company or such Subsidiary.

     Section 3.10  Litigation. Except as set forth on Schedule 3.10, there is no
action,  suit,  proceeding at law or in equity by any Person, or any arbitration
or any  administrative  or  other  proceeding  by or  before  (or  to  the  best
knowledge,  information  and belief of the Company,  any  investigation  by) any
governmental  or  other  instrumentality  or  agency,  pending  or,  to the best
knowledge, information and belief of the Company threatened, against the Company
or any of its  officers,  directors,  employees  or agents with  respect to this
Agreement or the transactions  contemplated  hereby, or against or affecting the
Company or any of its Subsidiaries or any of their properties or rights;  and no
acts, facts, circumstances,  events or conditions occurred, or exist which are a
basis for any such action, proceeding or investigation.  Neither the Company nor
any  Subsidiary  is  subject  to any  judgment,  order or decree  entered in any
lawsuit or proceeding.

     Section 3.11 Taxes.

     3.11.1  Taxes. The Company and its Subsidiaries have timely filed or caused
to be filed,  taking into account any valid extensions of due dates,  completely
and  accurately,  all Federal and all material  state,  local and foreign tax or
information  returns  (including  estimated  tax  returns)  required  under  the
statutes,  rules or regulations of such jurisdictions to be filed by the Company
and its Subsidiaries. The term "Taxes" means taxes, duties, charges or levies of
any  nature  imposed by any taxing or other  governmental  authority,  including
without limitation income,  gains,  capital gains, surtax,  capital,  franchise,
capital stock,  value-added  taxes  ("VAT"),  taxes required to be deducted from
payments made by the payor and accounted  for to any tax  authority,  employees'
income  withholding,  back-up  withholding,  withholding  on payments to foreign
persons,   social   security,   national   insurance,   unemployment,   worker's
compensation, payroll, disability, real property, personal property, sales, use,
goods and  services  or other  commodity  taxes,  business,  occupancy,  excise,
customs and import duties,  transfer,  stamp,  Michigan  single business tax and
other taxes (including interest, penalties or additions to tax in respect of the
foregoing),  and  includes  all taxes  payable by the Company or any  Subsidiary
pursuant to Treasury Regulations  ss.1.1502-6 or any similar provision of state,
local or foreign  law.  For the  purposes of Canadian  taxation the term "Taxes"
shall also  include  employer  health  taxes and Canada or Quebec  Pension  Plan


                                       16
<PAGE>

contributions.  All Taxes shown on said returns to be due have been paid and all
additional  assessments  received prior to the date hereof have been paid or are
being  contested in good faith,  in which case such  contested  assessments  are
disclosed on Schedule 3.11.  Except as described in item 4 of Schedule 3.11, the
amount set up as an accrual for Taxes on the Balance Sheet is sufficient for the
payment of all unpaid Taxes of the Company and its Subsidiaries,  whether or not
disputed,  for all  periods  ended on and prior to the date  thereof.  Since the
Balance  Sheet Date,  neither the Company nor any  Subsidiary  has  incurred any
liabilities for Taxes other than in the ordinary course of business. The Company
and its  Subsidiaries  have  withheld  all  amounts  required  to be withheld on
account of Taxes from amounts paid to employees,  former  employees,  directors,
officers and residents and  non-residents and remitted or will remit the same to
the appropriate taxing authority within the prescribed time periods. The Company
and its Subsidiaries  have collected all sales, use, goods and services or other
commodity  Taxes required to be collected and remitted or will remit the same to
the appropriate taxing authority within the prescribed time periods. The Company
and its  Subsidiaries  have delivered to Omnicom  correct and complete copies of
all  federal,  state and  foreign  income tax returns  and the  Michigan  single
business tax returns filed with respect to the Company and its  Subsidiaries for
all taxable  periods  beginning on or after January 1, 1991.  The Federal income
tax returns of the Company or its Subsidiaries have been audited by the Internal
Revenue Service for all periods  through  December 31, 1991. The Michigan single
business  tax returns of the Company and its  Subsidiaries  have been audited by
the Revenue  Division of the  Michigan  Department  of Treasury  for all periods
through  December  31,  1992.  The Company  has  delivered  to Omnicom  true and
complete copies of all notices of deficiencies or proposed  deficiencies  and of
all audit  reports  issued to the Company or any  Subsidiary by (i) the Internal
Revenue  Service for periods  beginning on or after January 1, 1988 and (ii) any
other taxing authority for periods beginning on or after January 1, 1991. Except
as disclosed on Schedule  3.11, no  examination  by any taxing  authority of any
return of the Company or any  Subsidiary  is currently in progress,  and neither
the Company nor any Subsidiary has received written notice of any proposed audit
or  examination.  No  deficiency  in the  payment of Taxes by the Company or any
Subsidiary  for any period has been asserted in writing by any taxing  authority
and remains unsettled at the date of this Agreement. Neither the Company nor any
Subsidiary has made any agreement,  waiver or other arrangement providing for an
extension  of time with  respect  to the  assessment  or  collection  of any Tax
against it or filed a consent  with the  Internal  Revenue  Service  pursuant to
Section 341(f)(2) of the Code or made an election under Section 338 of the Code.
Neither the Company nor any  Subsidiary is a party to any tax  allocation or tax
sharing agreement or has any contractual obligation to indemnify any Person with
respect  to  Taxes,  other  than  agreements  or  obligations  between  or among
corporations which are currently members of the affiliated group of corporations
(as  defined  in  Section  1504 of the Code) of which the  Company is the common
parent.  The  Company  has  not  been a  United  States  real  property  holding
corporation  within  the  meaning of Section  897(c)(2)  of the Code  within the
period specified in Section  897(c)(1)(A)(ii)  of the Code.  Neither the Company
nor any Subsidiary will be required as a result of a change in accounting method
for any period  ending on or before the Closing  Date to include any  adjustment


                                       17
<PAGE>

under  Section  481 of the Code (or any  similar  provision  of state,  local or
foreign  income tax law) in income for any period ending after the Closing Date.
Except as set forth on Schedule 3.11,  neither the Company nor any Subsidiary is
obligated to make any payments or is a party to any agreement that under certain
circumstances could obligate it to make any payments that will not be deductible
under Section 280G of the Code.

     3.11.2  Additional  Representations.  The Company  hereby further makes the
representations  and  warranties set forth on Annex I hereto with respect to the
Company's  Canadian  operations,  which is  incorporated  herein and made a part
hereof as if set forth herein in its entirety.

     Section  3.12  Liabilities.  Except  as set forth on the  Balance  Sheet or
referred to in the footnotes thereto, neither the Company nor any Subsidiary has
any outstanding  claims,  liabilities or  indebtedness of any nature  whatsoever
(collectively in this Section 3.12, "liabilities"), whether accrued, absolute or
contingent, determined or undetermined,  asserted or unasserted, and whether due
or to become due, other than (i) liabilities  disclosed in any Schedule  hereto;
(ii) liabilities under contracts,  agreements, licenses, leases, commitments and
undertakings of the type required to be disclosed on any Schedule but because of
the dollar amount or other  qualifications are not required to be listed on such
Schedule and, (iii) liabilities  incurred in the ordinary course of business and
consistent  with  past  practice  since the  Balance  Sheet  Date not  involving
borrowings by the Company and its Subsidiaries.  Except as set forth in item (d)
of Schedule  3.8,  neither the Company nor any  Subsidiary  has any  outstanding
guarantee  to any Person  with  respect to any  obligation  or  liability  of an
unrelated third party.

     Section  3.13  Insurance.  Schedule  3.13 is a  schedule  of all  insurance
policies (including life insurance) or binders maintained by the Company and its
Subsidiaries.  All such policies are valid, outstanding and enforceable policies
and all premiums  that have become due have been  currently  paid.  None of such
policies  shall lapse or  terminate by reason of the  transactions  contemplated
hereby.  Neither the Company nor any  Subsidiary has received any written notice
of cancellation or written non-renewal of any such policy or binder. Neither the
Company nor any Subsidiary has received written notice from any of its insurance
carriers that any premiums  will be  materially  increased in the future or that
any  insurance  coverage  listed on Schedule  3.13 will not be  available in the
future on  substantially  the same terms now in  effect.  Except as set forth on
Schedule 3.13,  within the last two years neither the Company nor any Subsidiary
has filed for any claim exceeding $50,000 against any of its insurance policies,
exclusive of automobile policies.

     Section 3.14 Intellectual Properties.  Schedule 3.14 hereto contains a list
of all  patents,  patent  applications,  trade name,  trademark,  copyright  and
service mark  registrations  and applications (now pending) owned by the Company
and  its  Subsidiaries  (collectively,  the  "Intellectual  Property")  and  all


                                       18
<PAGE>

agreements  under which any Person has granted a license under any  Intellectual
Property to the Company or any Subsidiary (other than  "off-the-shelf"  computer
software  licenses).  The term  "Intellectual  Property" as used in this Section
shall not include any of the foregoing  listed items which are owned or licensed
by a client of the Company or any of its  Subsidiaries and which are used by the
Company or one of its  Subsidiaries in the rendering of services to such client,
provided that in all cases the Company and its  Subsidiaries  have the requisite
permission  and authority to use such items as currently  used or anticipated to
be used. No claim of infringement or misappropriation  of Intellectual  Property
is or has been pending or, to the best knowledge,  information and belief of the
Company,  threatened  against the Company or any of its Subsidiaries and, to the
best knowledge,  information and belief of the Company,  neither the Company nor
any of its  Subsidiaries  is infringing  or  misappropriating  any  intellectual
property  of  others  and none of the  trademarks  or trade  names  set forth in
Schedule 3.14 has been abandoned.  Except as set forth on Schedule 3.14, neither
the Company  nor any of its  Subsidiaries  has  expressly  granted any  license,
franchise  or permit in effect on the date hereof to any person or entity to use
any of the trade names or any of the trademarks owned by it.

     Section 3.15 Compliance with Laws; Licenses and Permits.

     3.15.1  Compliance.  The  Company  and  its  Subsidiaries  are,  and  their
businesses  have  been  conducted,  in  compliance  with  all  applicable  laws,
regulations, orders, judgments, decrees, codes, and ordinances ("Requirements of
Law"),  except in each  case  where the  failure  to so comply  would not have a
Material Adverse Effect,  including without limitation,  (i) all Requirements of
Law  promulgated by the Federal Trade  Commission or any other  Federal,  state,
provincial,  municipal or local  governmental  regulatory  agency or enforcement
authority;  (ii)  all  environmental  Requirements  of  Law,  whether  regarding
Environmental  Laws or otherwise;  and (iii) all Requirements of Law relating to
labor,  civil  rights,  and  occupational   safety  and  health  laws,  worker's
compensation,  employment or pay equity.  Neither the Company nor any Subsidiary
has been charged with, or, to the best information,  knowledge and belief of the
Company  threatened  with,  or is under any  investigation  with respect to, any
charge concerning any violation of any Requirements of Law.

     3.15.2  Licenses.  The  Company  and its  Subsidiaries  have all  licenses,
permits  and  other  governmental  certificates,  authorizations  and  approvals
(collectively  "Licenses")  required by any  governmental or regulatory body for
the operation of their  businesses and the use of their  properties as presently
operated or used,  except where the failure to have such Licenses would not have
a Material Adverse Effect.  All of the Licenses are in full force and effect and
no action or claim is pending, nor to the best knowledge, information and belief
of the Company is  threatened,  to revoke or  terminate  any of the  Licenses or
declare any License invalid in any material respect.


                                       19
<PAGE>

     Section 3.16  Client Relations.Schedule 3.16 sets forth for the Company and
the  Subsidiaries  taken as a whole,  the twenty  largest  clients  (measured by
commissions and fees generated) as at the date hereof and the revenues from each
such client and from all clients  (in the  aggregate)  for the fiscal year ended
December 31, 1994.  Except as set forth on Schedule  3.16, no current  client of
the Company or any  Subsidiary  has advised  the  Company or any  Subsidiary  in
writing that it is terminating or  considering  terminating  the handling of its
business  by the  Company  or any  Subsidiary,  as a whole or in  respect of any
material  product,  project  or  service,  or is  planning  to reduce its future
spending with the Company or any Subsidiary in any material  manner,  and to the
best  knowledge,  information  and belief of the  Company,  no client has orally
advised the Company or any Subsidiary of any of the foregoing events.

     Section 3.17  Accounts Receivable;  Work-in-Process;  Accounts Payable. The
amount of all  work-in-process,  accounts receivable,  expenditures  billable to
clients  and other  debts due or recorded in the records and books of account of
the Company and the  Subsidiaries  as being due to the Company or any Subsidiary
arose from bona fide transactions in the ordinary course of business and, to the
best  knowledge,  information  and  belief  of the  Company,  will be  good  and
collectible  in full  (less the  amount of any  provision,  reserve  or  similar
adjustment  therefor  made in such records and books of account) in the ordinary
course of business,  and, to the best  knowledge,  information and belief of the
Company none of such accounts  receivable or other debts (or accounts receivable
arising from such  work-in-process) is or will be subject to any counterclaim or
set-off except to the extent of any such provision, reserve or adjustment. There
has been no change  since the  Balance  Sheet Date in the amount or aging of the
work-in-process,  accounts receivable, expenditures billable to clients or other
debts due to the Company or any Subsidiary or the reserves with respect thereto,
or  accounts  payable of the  Company  or any  Subsidiary,  which is  materially
adverse to the  business,  financial  condition or results of  operations of the
Company and its Subsidiaries taken as a whole.

     Section 3.18 Employment Relations. (a) The Company and the Subsidiaries are
in  compliance  in all material  respects with all  applicable  laws  respecting
employment  and  employment  practices,  terms and  conditions of employment and
wages,  hours and vacations,  and are not engaged in any unfair labor  practice;
(b) no unfair labor practice  complaint against the Company or any Subsidiary is
pending  before any  applicable  government  entity  and  without  limiting  the
generality of the foregoing,  no complaint has been filed by any Person alleging
a violation by the Company or any  Subsidiary  of the  Employment  Standards Act
(Ontario),  Human Rights Act (Ontario) or any similar Canadian legislation;  (c)
there is no  organized  labor  strike,  dispute,  slowdown or stoppage  actually
pending  or to the  best  knowledge,  information  and  belief  of  the  Company
threatened against or involving the Company or any Subsidiary;  (d) there are no
labor unions  representing or, to the best knowledge,  information and belief of
the  Company,  attempting  to  represent  the  employees  of the  Company or any
Subsidiary; (e) no claim or grievance nor any arbitration proceeding arising out

                                   20
 <PAGE>

of or under any  collective  bargaining  agreement  is  pending  and to the best
knowledge, information and belief of the Company, no such claim or grievance has
been  threatened;  (f) no  collective  bargaining  agreement is currently  being
negotiated  by the Company or any of its  Subsidiaries;  (g) neither the Company
nor any Subsidiary has experienced any work stoppage or similar  organized labor
dispute during the last three years; and (h) to the best knowledge,  information
and  belief  of the  Company,  all  filings  and  payments  under  the  Worker's
Compensation  Act (Ontario) have been filed or are made and up to date and there
are no claims made under this or similar legislation.  There is no legal action,
suit,  proceeding or claim pending or, to the best  knowledge,  information  and
belief of the Company,  threatened between the Company or any Subsidiary and any
of their employees,  former employees,  agents, former agents, job applicants or
any  association  or group of any of their  employees,  except  as set  forth on
Schedule 3.10.

     Section 3.19 Employee Benefit Matters.

     3.19.1  List of Plans. Schedule  3.8 lists all employee  benefit  plans (as
defined in Section 3(3) of the Employee  Retirement Income Security Act of 1974,
as amended  ("ERISA")) and all bonus, stock option,  stock purchase,  restricted
stock, stock appreciation rights, phantom stock rights,  incentive compensation,
deferred   compensation,   retiree  medical  or  life  insurance,   supplemental
retirement,  severance or other benefit plans, programs or arrangements, and all
termination,  severance or contracts or agreements,  whether covering one person
or more than one person,  and whether or not subject to any of the provisions of
ERISA, to which the Company or any Subsidiary is a party,  with respect to which
the  Company  or any  Subsidiary  has any  obligation  or which are  maintained,
contributed  to or sponsored by the Company or any Subsidiary for the benefit of
any  current or former  employee,  officer  or  director  of the  Company or any
Subsidiary (each aforementioned item listed or required to be listed on Schedule
3.8 being referred to herein individually,  as a "Plan" and collectively, as the
"Plans").  The Company has  delivered to Omnicom a complete and accurate copy of
(i) each written Plan and  descriptions  of any unwritten  Plan  (including  all
amendments thereto whether or not such amendments are currently effective), (ii)
each trust  agreement or other  funding  arrangement  with respect to each Plan,
including insurance  contracts,  (iii) each summary plan description and summary
of  material  modifications  relating to a Plan,  (iii) the three most  recently
filed IRS Form 5500 relating to each Plan,  (iv) the most recently  received IRS
determination  letter for each Plan,  and (v) the three most  recently  prepared
actuarial reports and financial  statements,  if applicable,  in connection with
each Plan.  Except as set forth on  Schedule  3.8,  neither  the Company nor any
Subsidiary has any express or implied commitment, (i) to create, incur liability
with respect to or cause to exist any other  employee  benefit plan,  program or
arrangement,  or (ii) to modify,  change or terminate any Plan. The  information
reported on each such Form 5500 is  accurate  and true.  To the best  knowledge,
information and belief of the Company, no event has occurred or condition exists
that could adversely effect the results  contained in such actuarial reports and
financial  statements.  Such financial statements fairly represent the financial



                                       21
<PAGE>

condition   and  results  of  operations  of  each  Plan  as  of  the  dates  of
suchstatements, in accordance with generally accepted accounting principles.

     3.19.2  Multi-Employer  Plans.  The Company and its  Subsidiaries  have not
maintained,  contributed to or participated in a multi-employer plan (within the
meaning of Section  3(37) or  4001(a)(3)  of ERISA or a multiple  employer  plan
subject  to  Sections  4063  and  4064 of  ERISA)  and  have no  obligations  or
liabilities,  including withdrawal or successor liabilities,  regarding any such
plan.

     3.19.3  Severance.  Except as set forth on Schedule 3.8, none of the Plans,
nor any  employment  agreement  or other  agreement  to which the Company or any
Subsidiary  is a party  or  bound,  provides  for  the  payment  of  separation,
severance,  termination or similar-type  benefits to any Person or obligates the
Company  or  any  Subsidiary  to  pay  separation,   severance,  termination  or
similar-type benefits solely as a result of any transaction contemplated by this
Agreement  or as a result of a "change in  control,"  within the meaning of such
term under section 280G of the Code. None of such Plans or other such agreements
referred to in this Section  3.19.3 are subject to the laws of any  jurisdiction
outside of the United States.

     3.19.4  Welfare  Benefit  Plans.  Schedule  3.8 sets forth a  complete  and
accurate  list  of  each  Plan  which  provides  or  promises  retiree  medical,
disability or life insurance benefits to any current or former employee, officer
or director of the Company.  Except as set forth on Schedule  3.19,  the Company
has  expressly  reserved the right,  in all Plan  documents  relating to welfare
benefits provided to employees, former employees,  officers, directors and other
participants and  beneficiaries,  to amend,  modify or terminate at any time the
Plans which  provide for  welfare  benefits  and the Company is not aware of any
fact, event or condition that could reasonably be expected to restrict or impair
such right.

     3.19.5 Administrative Compliance. Each Plan is now and has been operated in
all material respects in accordance with the requirements of all applicable law,
including,  without  limitation,  ERISA and the Code,  and the  regulations  and
authorities published thereunder. The Company and the Subsidiaries performed all
material obligations required to be performed by it under, is not in any respect
in default  under or in  violation  of, and the Company has no  knowledge of any
default or violation by any party to, any Plan. Except as set forth on Item 2(b)
of Schedule  3.10,  no legal  action,  suit,  audit,  investigation  or claim is
pending  or to the  best  knowledge,  information  and  belief  of  the  Company
threatened,  with  respect to any Plan (other  than  claims for  benefits in the
ordinary  course)  and,  to the best  knowledge,  information  and belief of the
Company,  and except as set forth on Schedule 3.19, no fact,  event or condition
exists that could give rise to any such action,  suit,  audit,  investigation or
claim. All reports, disclosures,  notices and filings with respect to such Plans
required to be made to employees, participants,  beneficiaries, alternate payees
and  government  agencies  have been timely made or an extension has been timely
obtained.


                                       22
<PAGE>

     3.19.6  Tax-Qualification.  Except as set forth on Schedule 3.19, each Plan
which is intended to be qualified  under Section 401(a) of the Code has received
a favorable  determination  letter from the IRS that it is so qualified and each
trust  established  in  connection  with any Plan which is intended to be exempt
from federal  income  taxation  under section  501(a) of the Code has received a
determination  letter  from  the  IRS  that  it is so  exempt,  and to the  best
knowledge,  information and belief of the Company, no fact or event has occurred
or  condition  exists since the date of such  determination  letter from the IRS
which could adversely affect the qualified status of any such Plan or the exempt
status of any such trust.

     3.19.7  Funding; Excise Taxes.  Except as set forth on Schedule 3.19, there
has been no prohibited  transaction  (within the meaning of Section 406 of ERISA
or Section 4975 of the Code) with respect to any Plan subject to ERISA.  Neither
the Company nor any  Subsidiary  has incurred any  liability  for any excise tax
arising under Sections 4971, 4972, 4975,  4976,4977,  4978, 4978B, 4979, 4980 or
4980B of the Code or any civil penalty  arising under Sections  502(i) or 502(l)
of ERISA, and, to the best knowledge,  information and belief of the Company, no
fact,  event or condition  exists  which could give rise to any such  liability.
Neither the Company nor any ERISA  Affiliate has incurred any  liability  under,
arising out of or by operation of Title IV of ERISA  (other than  liability  for
premiums to the Pension Benefit  Guaranty  Corporation  ("PBGC")  arising in the
ordinary course),  including,  without  limitation,  any liability in connection
with the  termination of any employee  benefit plan subject to Title IV of ERISA
(a "Title IV Plan");  and, no fact,  event or condition  exists which could give
rise to any such liability. Except as set forth on Schedule 3.19, no complete or
partial termination has occurred within the five years preceding the date hereof
with respect to any Plan maintained by the Company or any ERISA  Affiliate,  and
no  reportable  event  (within the meaning of Section 4043 of ERISA),  notice of
which has not been waived by the PBGC,  has occurred or except in respect of the
Pension  Plan is expected to occur with  respect to any Plan  maintained  by the
Company or any ERISA  Affiliate.  No Title IV Plan  maintained by the Company or
any ERISA Affiliate had an accumulated funding deficiency (within the meaning of
Section 302 of ERISA or Section 412 of the Code),  whether or not waived,  as of
the most  recently  ended  plan  year of such  Plan.  None of the  assets of the
Company or any ERISA  Affiliate is the subject of any Lien arising under Section
302(f) of ERISA or Section 412(n) of the Code; neither the Company nor any ERISA
Affiliate has been  required to post any security  under Section 307 of ERISA or
Section  401(a) (29) of the Code;  and to the best  knowledge,  information  and
belief of the Company, no fact or event exists which could give rise to any such
Lien or requirement  to post any such security.  As of the Closing Date, no Plan
which is a Title IV Plan will have an "unfunded benefit  liability"  (within the
meaning of Section 4001(a)(18) of ERISA).

     3.19.8  Tax Deductions. All contributions, premiums or payments required to
be made,  paid or  accrued  with  respect  to any Plan have been  made,  paid or
accrued on or before their due dates,  including  extensions  thereof.  All such
contributions  have been fully  deducted  for income  tax  purposes  and no such
deduction has been challenged or disallowed by any government  entity and to the


                                       23
<PAGE>

best knowledge,  information and belief of the Company,  no fact or event exists
which could give rise to any such challenge or disallowance.

     3.19.9  Additional  Representations.  The Company  hereby further makes the
representations  and warranties set forth on Annex II hereto with respect to any
Canadian Plan,  which is incorporated by reference herein and made a part hereof
as if set forth herein in its entirety.

     Section 3.20  Interests in Customers,Suppliers, Etc. Except as set forth on
Schedule 3.20, to the best knowledge,  information and belief of the Company, no
officer,  director, or employee of the Company or any Subsidiary  (collectively,
the "Related Group"), or any entity controlled by anyone in the Related Group:

          (i) owns, directly or indirectly, any interest in (excepting less than
     1/4 of 1% stock holdings for investment  purposes in securities of publicly
     held and traded  companies),  or has any right to receive payments from, or
     is an officer, director, employee or consultant of, any Person which is, or
     is  engaged  in  business  as,  a  competitor,  lessor,  lessee,  supplier,
     distributor,  sales  agent,  customer  or  Client  of  the  Company  or any
     Subsidiary;

          (ii) owns, directly or indirectly (other than through the ownership of
     stock or other securities of the Company or any Subsidiary), in whole or in
     part,  any tangible or intangible  property  material to the Company or any
     Subsidiary  that the  Company  or any  Subsidiary  uses in the  conduct  of
     business; or

          (iii) has any cause of action or other claim  whatsoever  against,  or
     owes any amount in excess of $10,000  to,  the  Company or any  Subsidiary,
     except for claims in the  ordinary  course of business  such as for accrued
     vacation pay,  accrued  benefits under employee  benefit plans, and similar
     matters and agreements existing on the date hereof.

     Section 3.21  Bank Accounts  and Powers of Attorney.  Set forth in Schedule
3.21 is an accurate and complete list showing (a) the name of each bank in which
the Company and its  Subsidiaries  have an account,  credit line or safe deposit
box and the names of all persons  authorized  to draw  thereon or to have access
thereto,  and (b) the names of all persons,  if any,  holding powers of attorney
from the  Company  and its  Subsidiaries  and a summary  statement  of the terms
thereof.

     Section 3.22  Compensation  of  Employees.  Set forth in Schedule 3.22 is a
complete  list showing the names and  positions of all  salaried  employees  and
exclusive  consultants who are currently being compensated in the aggregate from
the  Company  or any  Subsidiary  at an  annualized  rate of  $100,000  or more,
together with a statement of the current annual salary,  the bonus  compensation
paid or payable with respect to the fiscal year ended  December 31, 1994 and the


                                       24
<PAGE>

material  fringe  benefits  of such  employees  and  exclusive  consultants  not
generally  available to all employees of the Company and its  Subsidiaries.  The
Company  has made  available  to Omnicom a complete  list  showing (a) all bonus
compensation paid or payable in the aggregate  (whether by agreement,  custom or
understanding) to any salaried employees of the Company and its Subsidiaries for
services rendered during the fiscal years ended December 31, 1994, (b) the names
of all retired  employees,  if any, of the Company or its  Subsidiaries  who are
receiving or entitled to receive any  healthcare or life  insurance  benefits or
any payments  from the Company and its  Subsidiaries  not covered by any pension
plan to which  the  Company  or its  Subsidiaries  are a party,  their  ages and
current  unfunded  pension rate, if any, and (c) a description  of the Company's
normal severance benefits.

     Section  3.23  No Changes  Since the Balance  Sheet Date. Since the Balance
Sheet Date, except as specifically  stated on Schedule 3.23 (or another Schedule
to this Agreement) or as contemplated or otherwise  permitted under the terms of
this Agreement,  neither the Company nor any Subsidiary has (a) permitted any of
its assets to be  subjected to any Lien other than a Permitted  Lien,  (b) sold,
transferred  or  otherwise  disposed of any assets or  properties  except in the
ordinary  course  of  business  and which  had an  aggregate  value of less than
$25,000,   (c)  made  any  capital  expenditure  or  commitment  therefor  which
individually or in the aggregate exceeded $100,000,  (d) declared or paid or set
aside for  payment  any  dividends  or made any  distribution  on any  shares of
Company Stock,  or redeemed,  purchased or otherwise  acquired any shares of the
Company  Stock or any option,  warrant or other right to purchase or acquire any
such  shares  other than stock  repurchases  in  accordance  with the  Company's
Articles  of  Incorporation,  (e) paid or  incurred  any  obligation  to pay any
bonuses  to  employees  other than as accrued  for on the  Balance  Sheet or for
"spot" bonuses incurred in the ordinary course of business aggregating less than
$50,000,  (f) increased or prepaid its indebtedness  for borrowed money,  except
current  borrowings  in the  ordinary  course of  business  under  credit  lines
disclosed on the Balance Sheet, or made any loan to any Person other than to any
employee  for normal  travel  and  expense  advances  or  relocation  allowances
consistent   with   past   practice,   (g)   written   down  the  value  of  any
work-in-process,   or  written  off  as  uncollectible  any  notes  or  accounts
receivable,  except  write-downs  and  write-offs  in  the  ordinary  course  of
business,  none of which  individually  or in the aggregate,  is material to the
Company and its  Subsidiaries  taken as a whole (h) granted any  increase in the
rate of wages,  salaries,  bonuses or other  remuneration  of any employee  who,
whether  as a result  of such  increase  or prior  thereto,  receives  aggregate
compensation from the Company or any Subsidiary at an annual rate of $200,000 or
more, or entered into any employment  agreement which is not cancelable  without
penalty  or  financial   obligation   within  30  day(s)  and  which  has  total
compensation  of more  than  $500,000  over the term  thereof,  or except in the
ordinary course of business to any other  employees,  (i) canceled or waived any
claims or rights of  substantial  value,  (j) made any  change in any  method of
accounting,   (k)   otherwise   conducted  its  business  or  entered  into  any
transaction,  except in the usual and ordinary manner and in the ordinary course
of its business, (l) amended in any material respect or terminated any agreement


                                       25
<PAGE>

which is  material to its  business,  (m)  renewed,  extended or modified in any
material  respect any lease of real property or except in the ordinary course of
business any lease of personal  property,  (n) adopted,  amended in any material
respect or terminated any Plan, or (o) agreed,  whether or not in writing, to do
any of the foregoing.

     Section 3.24  Required Approvals, Notices and Consents. Except as set forth
on Schedule  3.24 and except for  approvals  required  under the HSR Act and the
MBCA, no consent,  approval or authorization  of, or declaration or registration
with,  or action by, or notice to, any  governmental  or  regulatory  authority,
domestic or foreign,  or any third  party,  is required in  connection  with the
execution and delivery by the Company of this Agreement and the  consummation of
the transactions contemplated hereby.

     Section 3.25  Corporate  Controls. To the best  knowledge,  information and
belief of the Company,  neither the Company,  its Subsidiaries nor any director,
officer,  agent,  employee or other  Person  associated  with or while acting on
behalf of the Company and its Subsidiaries,  has,  directly or indirectly:  used
any corporate fund for unlawful contributions, gifts, or other unlawful expenses
relating to political activity; made any unlawful payment to foreign or domestic
government officials or employees or to foreign or domestic political parties or
campaigns  from  corporate  funds;  established  or  maintained  any unlawful or
unrecorded  fund of  corporate  monies  or  other  assets;  made  any  false  or
fictitious  entry on its  books or  records;  made any  bribe,  rebate,  payoff,
influence payment,  kickback,  or other unlawful payment,  or other payment of a
similar  or  comparable  nature,  to any  person or  entity,  private or public,
regardless of form, whether in money, property, or services, to obtain favorable
treatment in securing business or to obtain special  concessions,  or to pay for
favorable  treatment  for business  secured or for special  concessions  already
obtained,  and neither the Company nor any  Subsidiary has  participated  in any
boycott or other  similar  practices  affecting  any of its actual or  potential
customers.

     Section 3.26  Information Supplied.  None of the information supplied or to
be  supplied  by the  Company  for  inclusion  in  either  (i) the  registration
statement on Form S-4 to be filed with the  Securities  and Exchange  Commission
("SEC")  by Omnicom  in  connection  with the  issuance  of  Omnicom  Stock (the
"Registration Statement") under this Agreement or (ii) the information statement
relating to the  special  meeting of  stockholders  of the Company to be held in
connection  with this Agreement and the  transactions  contemplated  hereby (the
"Information  Statement"),  contains any untrue  statement of a material fact or
omits to state any material fact  required to be stated  therein or necessary in
order to make the statements  therein, in light of the circumstances under which
they were made, not misleading,  or will, at the time the Registration Statement
becomes  effective under the Securities Act of 1933, as amended (the "Securities
Act"),  contain  any untrue  statement  of a material  fact or omit to state any
material fact required to be stated  therein or necessary to make the statements
therein not misleading.


                                       26
<PAGE>

     Section  3.27  Brokers.  Except as set forth on Schedule  3.27,  no broker,
finder,  agent or  similar  intermediary  has acted on behalf of the  Company in
connection  with this Agreement or the  transactions  contemplated  hereby,  and
except as set forth on Schedule 3.27 no brokerage commissions,  finder's fees or
similar  fees or  commissions  are payable by the Company or any  Subsidiary  in
connection  therewith based on any agreement,  arrangement or understanding with
any of them.

     Section  3.28  Opinion of Financial  Advisor.  The Company has received the
oral  opinion of  McDonald & Company  Securities,  Inc.,  to the effect that the
consideration  to be received  in the Merger is fair from a  financial  point of
view to the  stockholders  of the Company,  and a true and complete  copy of its
written  opinion  will be  delivered  to Omnicom no later than the filing of the
Registration Statement with the SEC.

     Section 3.29  Transaction Costs. The legal, accounting,  other professional
fees and  expenses,  including  the fees and  expenses  of  McDonald  &  Company
Securities,  Inc.,  incurred or to be incurred by the Company in connection with
this  Agreement and the  transactions  contemplated  hereby,  including  without
limitation the  preparation  of the Prospectus  Materials as provided in Section
7.1 and the transactions  contemplated thereby  (collectively,  the "Transaction
Costs") will not exceed $800,000.

     Section 3.30  Copies of Documents; Schedules.  The Company has caused to be
made  available  for  inspection  and  copying by Omnicom  and OmniSub and their
advisers, true, complete and correct copies of all documents referred to in this
Article  III or in any Annex or  Schedule.  The  Schedules  referred  to in this
Article  III have been  previously  delivered  to  Omnicom  and  OmniSub  by the
Company.

                                   ARTICLE IV

                     REPRESENTATIONS OF OMNICOM AND OMNISUB

     Omnicom and OmniSub,  jointly and  severally,  represent and warrant to the
Company as follows:

     Section 4.1  Existence  and Good  Standing. Omnicom is a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
New York. OmniSub is a corporation duly organized,  validly existing and in good
standing  under the laws of the State of  Michigan.  Each of Omnicom and OmniSub
has all requisite  corporate  power and authority to own its assets and to carry
on its business as presently conducted.

     Section  4.2  Execution  and  Validity of  Agreements.  Each of Omnicom and
OmniSub has the full corporate  power and authority to enter into this Agreement
and to perform its respective obligations hereunder.  The execution and delivery


                                       27
<PAGE>

of  this  Agreement  by  Omnicom  and  OmniSub  and  the   consummation  of  the
transactions  contemplated  hereby  have been duly  authorized  by all  required
corporate action on behalf of Omnicom and OmniSub.  This Agreement has been duly
and validly  executed and  delivered  by Omnicom and OmniSub  and,  assuming due
authorization,  execution  and delivery by the Company,  constitutes  the legal,
valid and binding obligation of Omnicom and OmniSub, enforceable against each of
them in accordance with its terms.

     Section 4.3  Restrictive Documents. Except for approvals required under the
HSR Act,  neither Omnicom nor OmniSub is subject to, or a party to, any charter,
by-law, mortgage, Lien, lease, license, permit, agreement, contract, instrument,
law,  rule,  ordinance,  regulation,  order,  judgment  or decree,  or any other
restriction of any kind or character,  which would prevent  consummation  of the
transactions  contemplated by this Agreement or any other agreement entered into
by it in connection with the transactions  contemplated  hereby.  The execution,
delivery  and  performance  of  this  Agreement  and  the  consummation  of  the
transactions  contemplated  hereby  will not (i) violate  any  provision  of the
charter documents or by-laws of Omnicom or OmniSub; (ii) violate,  conflict with
or result in the breach or  modification  of any of the terms of, or  constitute
(or with  notice  or lapse  of time or both  constitute)  a  default  under,  or
otherwise give any other contracting party the right to accelerate or terminate,
any obligation,  contract, agreement, Lien, judgment, decree or other instrument
to which  Omnicom or OmniSub is a party or by or to which  Omnicom or OmniSub or
their respective assets or properties may be bound or subject; (iii) violate any
order, writ, judgment,  injunction,  award or decree of any court, arbitrator or
governmental or regulatory body against,  or binding upon, Omnicom or OmniSub or
their respective assets or properties;  or (iv) result in a violation by Omnicom
or  OmniSub of any  statute,  law or  regulation  of any  jurisdiction  which is
applicable to the business or operations of Omnicom or OmniSub.

     Section 4.4  Omnicom  Stock. The shares of Omnicom Stock to be delivered to
the  stockholders of the Company  pursuant to this Agreement,  when delivered as
provided herein,  will be validly issued and outstanding shares of voting common
stock of  Omnicom,  fully  paid and  non-assessable,  and will not be subject to
preemptive  rights of any Person.  The Omnicom Stock to be so delivered  will be
registered under the  Registration  Statement and duly listed for trading on the
New York Stock Exchange as of the Closing Date.

     Section  4.5  Financial  Statements  and No Material  Changes.  Omnicom has
previously  furnished  to the  Company  true and  complete  copies of its Annual
Reports on Form 10-K for the three  fiscal years ended  December 31, 1992,  1993
and 1994,  as amended by the Reports on Form 10-K/A filed in respect of the 1992
and 1993 Annual  Reports.  Since  December 31, 1994,  there has been no material
adverse  change in the assets or  liabilities,  or in the business or condition,
financial or otherwise, or the results of consolidated operations of Omnicom and
its subsidiaries.  Since December 31, 1991, Omnicom has filed all forms, reports


                                       28
<PAGE>

and  documents  with the SEC  required to be filed by it pursuant to the federal
securities  laws  and  the  SEC  rules  and  regulations  thereunder  (the  "SEC
Reports"),  all of which  complied in all material  respects with the applicable
requirements  of the Securities Act and the Securities  Exchange Act of 1934, as
amended (the "Exchange Act"). None of the SEC Reports, at the time filed (and in
the case of the 1992 and 1993  Annual  Reports on Form  10-K,  as amended by the
applicable  Form 10-K/A)  contained any untrue  statement of a material fact, or
omitted to state a material fact  required to be stated  therein or necessary to
make the statements  therein,  in light of the  circumstances in which they were
made,  or in which they will be made,  not  misleading.  The  audited  financial
statements  included in such SEC Reports have been prepared in  accordance  with
GAAP  applied on a  consistent  basis  (except as stated  therein)  and  present
fairly, in all material respects, the consolidated financial position of Omnicom
and its  subsidiaries as of the respective  dates thereof,  and the consolidated
results of operations and cash flows for each of the periods then ended.

     Section 4.6  Litigation.  There is no action, suit, proceeding at law or in
equity  by  any  Person,  or any  arbitration  or any  administrative  or  other
proceeding  by or before (or to the best  knowledge,  information  and belief of
Omnicom  and  OmniSub,   any  investigation   by),  any  governmental  or  other
instrumentality  or agency,  pending or, to the best knowledge,  information and
belief of Omnicom  and  OmniSub,  threatened  against  Omnicom  or OmniSub  with
respect to this Agreement or the transactions contemplated hereby, or against or
affecting  Omnicom  or any of its  subsidiaries  or any of their  properties  or
rights which,  if adversely  determined,  would be  reasonably  likely to have a
material and adverse effect on the financial  condition,  results of operations,
assets,  properties  or businesses  of Omnicom and its  subsidiaries  taken as a
whole.

     Section 4.7  Consents and Approvals of Governmental  Authorities. Except as
set forth on Schedule 4.7 and except for approvals  required  under the HSR Act,
no consent,  approval or authorization of, or declaration or registration  with,
or action by, or notice to, any governmental or regulatory  authority,  domestic
or foreign, or any third party, is required in connection with the execution and
delivery by Omnicom and OmniSub of this  Agreement and the  consummation  of the
transactions contemplated hereby.

     Section 4.8  Brokers. No broker,  finder, agent or similar intermediary has
acted on behalf of Omnicom or OmniSub or their  affiliates  in  connection  with
this  Agreement  or the  transactions  contemplated  hereby,  and  no  brokerage
commissions, finder's fees or similar fees or commissions are payable by Omnicom
or  OmniSub in  connection  therewith  based on any  agreement,  arrangement  or
understanding with any of them.

     Section 4.9 Information Supplied. None of the information supplied or to be
supplied by Omnicom for  inclusion in either (a) the  Registration  Statement or
(b) the Information  Statement  contains any untrue statement of a material fact
or omits to state any material fact  required to be stated  therein or necessary
in order to make the statements therein, in light of the circumstances under


                                       29
<PAGE>

which they were made,  not  misleading,  or will,  at the time the  Registration
Statement  becomes  effective  under the  Securities  Act,  contain  any  untrue
statement of a material  fact or omit to state any material  fact required to be
stated therein or necessary to make the statements  therein not misleading.  The
Registration  Statement will comply as to form in all material respects with the
provisions  of the  Securities  Act and the  rules and  regulations  promulgated
thereunder.

     Section  4.10  OmniSub.  OmniSub  was formed  solely for the purpose of the
Merger and  engaging in the  transactions  contemplated  hereby.  As of the date
hereof  and the  Effective  Time,  the  capital  stock of OmniSub is and will be
directly owned 100% by Omnicom. Further, there are not as of the date hereof and
there will not be at the Effective Time any  outstanding or authorized  options,
warrants,  calls, rights,  commitments or any other agreements requiring OmniSub
to issue,  transfer,  sell,  purchase,  redeem or acquire  any shares of capital
stock. As of the date hereof and the Effective  Time,  except for obligations or
liabilities  incurred in connection with its  incorporation  or organization and
the  transactions  contemplated  hereby,  OmniSub  has not  and  will  not  have
incurred,  directly or  indirectly  through any  subsidiary  or  affiliate,  any
obligations  or liabilities or engaged in any business or activities of any type
of kind  whatsoever  or entered into any  agreements  or  arrangements  with any
person or entity.

     Section  4.11  Copies of  Documents;  Schedules. Omnicom  and OmniSub  have
caused to be made  available for  inspection  and copying by the Company and its
advisers,  complete  and  correct  copies of all  documents  referred to in this
Article IV or in any Schedule. The Schedules referred to in this Article IV have
been previously delivered to the Company by Omnicom or OmniSub.


                                   ARTICLE V

                            COVENANTS OF THE COMPANY

     The Company  covenants  and agrees with  Omnicom and OmniSub  that,  at all
times from and after the  Execution  Date until the  Closing,  the Company  will
comply with all covenants and provisions of this Article V, except to the extent
Omnicom (on behalf of itself and OmniSub) may otherwise consent in writing.

     Section 5.1  Regulatory and Other  Approvals. The Company will (a) take all
commercially reasonable steps necessary or desirable, and proceed diligently and
in good  faith and use all  commercially  reasonable  efforts,  as  promptly  as
practicable to obtain all consents, approvals or actions of, to make all filings
with and to give all notices to  governmental  or regulatory  authorities or any
other Person required of the Company to consummate the transactions contemplated
hereby  including  without  limitation  those  described on Schedule  3.24,  (b)


                                       30
<PAGE>

provide  such other  information  and  communications  to such  governmental  or
regulatory  authorities  or other  Persons as such  governmental  or  regulatory
authorities or other Persons may reasonably request in connection  therewith and
(c) provide  reasonable  cooperation  to Omnicom and  OmniSub in  obtaining  all
consents,  approvals  or  actions  of,  making all  filings  with and giving all
notices to governmental or regulatory  authorities or other Persons  required of
Omnicom or OmniSub to consummate the transactions contemplated hereby, including
without  limitation  complying,  if necessary,  with the Workers  Adjustment and
Retraining  Notification  Act (P.L.  100-379).  The Company will provide  prompt
notification  to Omnicom  when any such  consent,  approval,  action,  filing or
notice  referred to in clause (a) above is obtained,  taken,  made or given,  as
applicable, and will advise Omnicom of any communications (and, unless precluded
by law, provide copies of any such  communications that are in writing) with any
governmental  or  regulatory  authority  or other  Person  regarding  any of the
transactions contemplated by this Agreement.

     Section  5.2  HSR  Filings.  In addition  to and not in  limitation  of the
Company's covenants contained in Section 5.1, the Company will (a) take promptly
all  actions  necessary  to make the filings  required of the Company  under the
Hart-Scott-Rodino  Antitrust  Improvements  Act of 1976,  as  amended  (the "HSR
Act"),  (b)  comply  at the  earliest  practicable  date  with any  request  for
additional information received by the Company from the Federal Trade Commission
or the Antitrust  Division of the Department of Justice  pursuant to the HSR Act
and (c) cooperate with Omnicom in connection with Omnicom's filing under the HSR
Act  and in  connection  with  resolving  any  investigation  or  other  inquiry
concerning the transactions  contemplated by this Agreement  commenced by either
the Federal  Trade  Commission or the  Antitrust  Division of the  Department of
Justice or state attorneys general.

     Section 5.3  Full Access. The Company will (a) provide  Omnicom and OmniSub
and  their  respective  officers,  employees,  counsel,  accountants,  financial
advisors, consultants and other representatives (collectively,  "Advisors") with
full access,  upon reasonable  prior notice and during normal business hours, to
the  executive  officers  and  agents  of the  Company  who  have  any  material
responsibility  for  the  conduct  of  the  business  of  the  Company  and  its
Subsidiaries,  to the Company's  accountants and their work papers,  but only to
the extent that such access does not unreasonably interfere with the business of
the  Company  and its  Subsidiaries  and (b)  furnish  Omnicom,  OmniSub and the
Advisors with all such  information  and data concerning the Company as Omnicom,
OmniSub  or  the  Advisors  reasonably  may  request  in  connection  with  such
investigation, except to the extent that furnishing any such information or data
would violate any law, order,  contract or License  applicable to the Company or
any Subsidiary.

     Section 5.4  No Solicitations.The Company will not take, nor will it permit
any affiliate (or authorize or permit any investment banker,  financial advisor,
attorney,  accountant or other Person  retained by or acting for or on behalf of
it or any such  affiliate)  to take,  directly  or  indirectly,  any  action  to
solicit,   encourage,   receive,   negotiate,  assist  or  otherwise  facilitate


                                       31
<PAGE>

(including by furnishing  confidential  information with respect to the Company)
any offer or inquiry  concerning the  acquisition of the Company from any Person
(a  "Potential  Acquiror")  other  than  Omnicom  or  OmniSub  (an  "Acquisition
Proposal");  provided,  however,  that the Board of  Directors  on behalf of the
Company may furnish or cause to be furnished information  concerning the Company
pursuant to appropriate confidentiality agreements and may engage in discussions
or negotiations  with a Potential  Acquiror  concerning an Acquisition  Proposal
through its  representatives  provided that prior to furnishing such information
or entering into such negotiations and discussions the Board of Directors of the
Company  shall  conclude in good faith on the basis of advice  from  independent
counsel that such action is required in order for such Board of Directors to act
in a manner which is consistent with its fiduciary  obligations under applicable
law. The Company shall promptly  inform Omnicom,  orally and in writing,  of the
material  terms  and  conditions  of any  proposal  or offer  for,  or which may
reasonably be expected to lead to, an Acquisition  Proposal that it receives and
the identity of the Potential Acquiror.  The Company shall immediately cease any
existing  activities,  discussions or negotiations with any parties with respect
to any Acquisition Proposal.

     Section 5.5  Conduct of  Business. From the  Execution  Date to the Closing
Date,  except as  contemplated  or otherwise  permitted  under the terms of this
Agreement,  the  Company  will  operate  the  business  of the  Company  and the
Subsidiaries only in the ordinary course consistent with past practice.  Without
limiting the generality of the foregoing, except required by Section 5.14 and as
contemplated  by or otherwise  permitted  by the terms of this  Agreement or any
Schedule  hereto,  the Company will refrain,  and will cause its subsidiaries to
refrain, from taking any of the following actions unless consented to in writing
by  Omnicom  (on  behalf of itself  and  OmniSub),  which  consent  shall not be
unreasonably withheld:

          (i)  other  than  pursuant  to this  Agreement,  selling,  leasing  or
     otherwise disposing of all or a substantial part of its assets or business;

          (ii) amending its Articles of  Incorporation or by-laws (or equivalent
     charter documents);

          (iii) changing its equity capitalization;

          (iv) engaging in any  acquisition of the stock,  assets or business of
     another  corporation or entity or making any equity investment of corporate
     funds in another corporation or entity other than short-term investments in
     cash equivalents;

          (v) merging or consolidating  with and into any  corporation,  limited
     liability  company  or  other  entity,  or  merging  or  consolidating  any
     corporation, limited liability company or other entity with and into it;


                                       32
<PAGE>

          (vi) engaging in any liquidation or dissolution;

          (vii)  engaging in any  transaction  involving  an amount in excess of
     $250,000,  other than in the  ordinary  course of  business  to service its
     clients;

          (viii)  engaging in the  issuance or sale of stock or  securities,  or
     options, warrants or obligations convertible into such stock or securities,
     or  issuing  any  phantom  stock,   equity   participation   units,   stock
     appreciation rights or similar rights;

          (ix) entering into any new line of business;

          (x)  prepaying any  indebtedness  for borrowed  money;  or creating or
     modifying any of the terms of any of the following financial  arrangements:
     any Lien on any of its assets or  properties  other than a Permitted  Lien;
     any  guarantee  by it of the  obligations  of any  third  party,  whether a
     director,  officer  or  employee  of  the  Company  or any  Subsidiary,  or
     otherwise;  and any  indebtedness for borrowed money except in the ordinary
     course of its business under credit lines set forth on Schedule 3.8;

          (xi)  except  as  set  forth  on  Schedule  5.5,   entering  into  any
     arrangement  with  any  employee  or  consultant   pursuant  to  which  the
     compensation or fee payable to such employee or consultant  shall wholly or
     partially  be  contingent  upon (a) a  percentage  of its  revenues  or the
     revenues generated by it relating to any of its clients or (b) its profits,
     except for renewals in the ordinary  course of business and consistent with
     past practice of outstanding arrangements of such type;

          (xii)  making any loans to any employee  other than normal  travel and
     expense  advances or relocation  allowances,  in each case  consistent with
     past practices, or to any other Person;

          (xiii)  except as disclosed in Schedule 3.8 hereto,  entering into any
     lease  or  purchase  of real  property  or  commitment  to  construct  real
     property;

          (xiv)  granting any  compensation  increase to any  existing  employee
     whose total annual  compensation would after such increase exceed $200,000;
     paying bonuses to any existing  employees  except to the extent accrued for
     on the Balance Sheet and spot bonuses aggregating not more than $50,000; or
     entering into any  employment  agreement  which is not  cancelable  without
     penalty  or  financial  obligation  within  30 days  and  which  has  total
     compensation of more than $500,000 over the term thereof;

          (xv)  entering  into any  contract  or  agreement  with any officer or
     director;


                                       33
<PAGE>

          (xvi)  except  as  set  forth  on  Schedule  5.5,  entering  into  any
     affiliation  arrangement with any advertising agency, other than Omnicom or
     any affiliate thereof;

          (xvii) declaring or paying any dividends to its stockholders or making
     other distributions in respect of its capital stock,  splitting,  combining
     or  reclassifying  any of its capital  stock,  or issuing or authorizing or
     proposing  the issuance of any other  securities in respect of, in lieu of,
     or in  substitution  for,  shares of its capital  stock;  or  repurchasing,
     redeeming or otherwise  acquiring any of its shares of capital stock (other
     than under stock repurchase  agreements  existing as of the date hereof and
     described on Schedule 3.8); or repurchasing  any  outstanding  units issued
     under the EPU Plan;

          (xviii)  amending in any  material  respect any  contract or agreement
     material to its business;

          (xix) entering into any severance  agreement  involving a payment,  or
     obligation  to pay any amount in excess of the Company's  normal  severance
     benefit as set forth on  Schedule  3.22  except in respect of  arrangements
     relating to the Kmart reduction in force, as set forth on Schedule 3.22;

          (xx) releasing,  canceling or assigning any  indebtedness for borrowed
     money owed to it, or waiving any material right relating to its properties;

          (xxi)  accepting  as a client  any  Person  that the  Chief  Executive
     Officer of Omnicom, in his reasonable discretion, determines to be contrary
     to the best interests of Omnicom and its subsidiaries;

          (xxii) except as set forth on Schedule 5.5,  creating or modifying any
     Plan or entering into or modifying any  employment  agreement  which is not
     cancelable without penalty or other obligation on 30 days notice;

          (xxiii)  entering into any  transaction  or  performing  any act which
     would be  reasonably  likely to result  in any of the  representations  and
     warranties  of the Company  contained in this  Agreement not being true and
     correct in any  material  respect;  or  agreeing to take any of the actions
     that are prohibited  herein or which would constitute a violation of any of
     the covenants of the Company contained herein; and

          (xxiv)  delegating  to directors  the power to take any of the actions
     prohibited by any of the foregoing clauses.

     Section 5.6  Financial Information. Within 10 business days after the close
of each month between the Execution Date and the Closing Date, the Company shall
furnish to Omnicom the unaudited  consolidated balance sheets of the Company and


                                       34
<PAGE>

the  Subsidiaries,  as at the close of such month, and the related  consolidated
statements  of income and (with  respect to quarterly  consolidated  statements)
cash flows for the period then ended and the fiscal year-to-date.  The unaudited
financial  statements  referred  to in this  Section  5.6 shall be  prepared  in
accordance  with GAAP applied on a consistent  basis with the audited  financial
statements  provided  to Omnicom  and  OmniSub  pursuant  to Section  3.4 above,
provided that such unaudited  financial  statements shall not contain  footnotes
and shall be subject to normal year-end adjustments and accruals.

     Section  5.7  Notice and Cure. The Company  will notify  Omnicom in writing
(where  appropriate  and only  with  respect  to  matters  occurring  after  the
Execution Date, through updates to the Schedules) of, and contemporaneously will
provide  Omnicom with true and  complete  copies of any and all  information  or
documents relating to, and will use all commercially  reasonable efforts to cure
before  the  Closing,  any  event,  transaction  or  circumstance,  as  soon  as
practicable after it becomes known to the Company, occurring after the Execution
Date that causes or will cause any covenant or  agreement  of the Company  under
this  Agreement  to be  breached or that  renders or will  render  untrue in any
material respect any representation or warranty of the Company contained in this
Agreement  as if  the  same  were  made  on or as of the  date  of  such  event,
transaction or circumstance. The Company also will notify Omnicom in writing of,
and will use all commercially  reasonable  efforts to cure,  before the Closing,
any other violation or breach,  as soon as practicable after it becomes known to
the Company, of any representation,  warranty, covenant or agreement made by the
Company in this  Agreement.  No notice given pursuant to this Section shall have
any effect on the representations, warranties, covenants or agreements contained
in this  Agreement  for purposes of  determining  satisfaction  of any condition
contained  herein or shall in any way limit  Omnicom's  right to seek  indemnity
under Article XI.

     Section 5.8  Termination  of Pension Plan.  The Company shall not undertake
any action to terminate  the Ross Roy, Inc.  Pension Plan (the  "Pension  Plan")
without and in accordance  with the prior written  consent and  instructions  of
Omnicom.

     Section 5.9  Consultation. Between the Execution Date and the Closing Date,
the Company will consult with management of Omnicom and the  Diversified  Agency
Services  Division of Omnicom with a view to informing such management as to the
operation and management of the Company and the  Subsidiaries.  The Company will
use commercially reasonable efforts to preserve the business organization of the
Company and the Subsidiaries,  to preserve the present business relationships of
the  Company  and the  Subsidiaries,  and to  preserve  all of the  confidential
information and trade and business secrets of the Company and the Subsidiaries.

     Section  5.10  Company  Stockholder  Approval.  Within  five days after the
Registration  Statement  becomes  effective,  the Company shall give notice of a
special  meeting of its  stockholders  to be held not more than 30 days from the


                                       35
<PAGE>

date of such notice for the purpose of voting on and approving,  inter alia, (i)
this Agreement and the  transactions  contemplated  hereby,  and (ii) the Escrow
Agreement and the transactions  contemplated  thereby,  and the designation of a
representative  (the  "Representative")  to act on behalf of the  holders of the
Company Stock immediately prior to the Effective Time (the  "Stockholders")  and
the Former Eligible Employee  Holders,  including naming one or more alternative
individuals  to  act  as   Representative  in  the  event  that  the  designated
Representative  shall have died,  resigned  or  otherwise  become  incapable  or
unwilling to act as  Representative  and providing for an appropriate  selection
procedure if all of such named  alternatives are unwilling or unable to serve as
Representative.  Approval  of the  Escrow  Agreement  and the  selection  of the
Representative  (and  successors)  shall be included in a resolution to be acted
upon by the  Stockholders.  Such  resolution  shall provide for, inter alia, the
Stockholders  acceptance of the  Representative  as the collective  agent of the
Stockholders  and the Former  Eligible  Employee  Holders under the terms of the
Escrow Agreement;  and authorize such  Representative to (w) execute and deliver
the Escrow Agreement and any documents incident or ancillary thereto,  including
without  limitation,  any  amendments,  cancellations,  extensions or waivers in
respect  thereof,  (x)  respond  to and make  determinations  in  respect of the
assertion of any and all claims for  indemnification  by Omnicom,  and to assert
claims,  pursuant to terms of the Escrow  Agreement  and the  provisions of this
Agreement pertaining thereto, (y) execute and deliver any stock powers which may
be required to be executed by any  Stockholder or any Former  Eligible  Employee
Holder in order to permit the delivery to Omnicom of any shares of Omnicom Stock
to be  delivered  to  Omnicom  from  the  Escrow  Fund in  accordance  with  the
provisions of the Escrow  Agreement,  and (z) take all such other actions as may
be necessary or desirable to carry out his  responsibilities as collective agent
of the  Stockholders  and  Former  Eligible  Employee  Holders in respect of the
Escrow  Agreement.  The  Company  shall  use its best  efforts  to  obtain  such
stockholder  approval.  Subject to the exercise of fiduciary obligations imposed
under  applicable  law as advised by  independent  counsel,  the  Company  will,
through its Board of Directors,  recommend to its  stockholders  approval of the
Merger,  the  transactions   contemplated  by  this  Agreement  and  the  Escrow
Agreement, and the appointment of the Representative.

     Section  5.11  Tax  Returns. The Company  will cause to be prepared all tax
returns of the  Company and its  Subsidiaries  required to be filed prior to the
Effective Time with respect to the taxable year ended December 31, 1994.  Except
as  Omnicom  and the  Company  may  agree,  such  returns  will be  prepared  in
accordance  with the past  practices of the Company  (including  tax  accounting
methods,  tax elections and similar items), to the extent permitted by law. Such
returns  shall be  furnished  to  Omnicom no later than 15 days prior to the due
date thereof for Omnicom's  approval,  which approval shall not be  unreasonably
withheld or delayed.

     Section 5.12  Fulfillment of Conditions.Subject to the terms and conditions
of this  Agreement,  the Company  will  execute and deliver at the Closing  each
agreement  that the  Company  is  required  hereby to execute  and  deliver as a
condition to the Closing, will take all commercially  reasonable steps necessary


                                       36
<PAGE>

or  desirable  and proceed  diligently  and in good faith to satisfy  each other
condition to the obligations of Omnicom and OmniSub  contained in this Agreement
and will not take or fail to take any action that could  reasonably  be expected
to result in the nonfulfillment of any such condition.

     Section  5.13  Repayment  of  Indebtedness;   Removal  of  Guarantee.   All
indebtedness  of  directors,  officers  and  employees  of  the  Company  or any
Subsidiary  to the  Company or any  Subsidiary  shall be repaid in full prior to
December 31, 1995,  other than routine travel and expense advances or relocation
allowances made (x) in the ordinary  course of business,  (y) within the 90 days
prior to the Closing  Date,  and (z)  consistent  in amount with past  practice.
Effective  no later then the  Effective  Time,  the  Company's  guarantee of the
borrowings by certain executive  officers referred to in item (d)(5) of Schedule
3.8, has been terminated.

     Section 5.14  Stock  Repurchase  Agreements. The Company shall have paid in
full all obligations  owing by it under promissory notes to former  stockholders
of the Company in respect of the Company's repurchase of Company Stock from such
former stockholders so that the shares of Company Stock held in escrow to secure
all such payments have been released to the Company and retired.


                                   ARTICLE VI

                        COVENANTS OF OMNICOM AND OMNISUB

     Omnicom and OmniSub  covenant and agree with the Company that, at all times
from and after the  Execution  Date until the Closing,  Omnicom and OmniSub will
comply with all  covenants  and  provisions  of this  Article VI,  except to the
extent the Company may otherwise consent in writing.

     Section 6.1  Regulatory and Other  Approvals.  Omnicom and OmniSub will (a)
take all  commercially  reasonable  steps  necessary or  desirable,  and proceed
diligently and in good faith and use all  commercially  reasonable  efforts,  as
promptly as practicable to obtain all consents, approvals or actions of, to make
all  filings  with  and to  give  all  notices  to  governmental  or  regulatory
authorities or any other Person required of Omnicom or OmniSub to consummate the
transactions  contemplated hereby,  including without limitation those described
on Schedule 4.7, (b) provide such other  information and  communications to such
governmental or regulatory  authorities or other Persons as such governmental or
regulatory  authorities  or other Persons may  reasonably  request in connection
therewith and (c) provide reasonable cooperation to the Company in obtaining all
consents,  approvals  or  actions  of,  making all  filings  with and giving all
notices to governmental or regulatory  authorities or other Persons  required of
the Company to consummate the  transactions  contemplated  hereby.  Omnicom will


                                       37
<PAGE>

provide  prompt  notification  to the Company when any such  consent,  approval,
action,  filing or notice  referred to in clause (a) above is  obtained,  taken,
made or given, as applicable,  and will advise the Company of any communications
(and,  unless precluded by law, provide copies of any such  communications  that
are in writing) with any  governmental  or regulatory  authority or other Person
regarding any of the transactions contemplated by this Agreement.

     Section 6.2  HSR Filings. In addition to and without limiting the covenants
contained in Section 6.1,  Omnicom will (a) take promptly all actions  necessary
to make the  filings  required of Omnicom  under the HSR Act,  (b) comply at the
earliest  practicable date with any request for additional  information received
by Omnicom from the Federal Trade  Commission  or the Antitrust  Division of the
Department of Justice pursuant to the HSR Act and (c) cooperate with the Company
in connection with the Company's filing under the HSR Act and in connection with
resolving  any  investigation  or  other  inquiry  concerning  the  transactions
contemplated by this Agreement  commenced by either the Federal Trade Commission
or the  Antitrust  Division  of the  Department  of Justice  or state  attorneys
general.

     Section  6.3  Financial  Information  and  Reports.  As soon as  reasonably
practicable  after it becomes publicly  available,  Omnicom shall furnish to the
Company any Form 10-Q or other registration statement or report filed by Omnicom
with the SEC following the Execution Date and prior to the Closing Date.

     Section 6.4  Notice and Cure. Omnicom or OmniSub will notify the Company in
writing of any and all  information  or documents  relating to, and will use all
commercially   reasonable  efforts  to  cure  before  the  Closing,  any  event,
transaction or  circumstance,  as soon as practicable  after it becomes known to
Omnicom or OmniSub, occurring after the Execution Date that causes or will cause
any  covenant or  agreement  of Omnicom or OmniSub  under this  Agreement  to be
breached  or that  renders or will  render  untrue in any  material  respect any
representation  or warranty of Omnicom or OmniSub contained in this Agreement as
if the  same  were  made  on or as of the  date of such  event,  transaction  or
circumstance. Omnicom or OmniSub also will notify the Company in writing of, and
will use all commercially  reasonable  efforts to cure, before the Closing,  any
other  violation or breach,  as soon as  practicable  after it becomes  known to
Omnicom or OmniSub, of any representation,  warranty, covenant or agreement made
by Omnicom  or  OmniSub in this  Agreement.  No notice  given  pursuant  to this
Section shall have any effect on the representations,  warranties,  covenants or
agreements contained in this Agreement for purposes of determining  satisfaction
of any condition contained herein.

     Section 6.5  Fulfillment of Conditions. Subject to the terms and conditions
of this  Agreement,  Omnicom and OmniSub  will  execute and deliver or cause the
execution and delivery at the Closing each agreement that Omnicom and OmniSub or
one of their affiliates is hereby required to execute and deliver as a condition
to the  Closing,  will  take all  commercially  reasonable  steps  necessary  or


                                       38
<PAGE>

desirable  and  proceed  diligently  and in good  faith to  satisfy  each  other
condition to the obligations of the Company contained in this Agreement and will
not take or fail to take any action that could  reasonably be expected to result
in the nonfulfillment of any such condition.

     Section 6.6  Blue Sky; New York Stock Exchange Listing. Omnicom and OmniSub
will use their best  efforts to (a) obtain no later than the  effective  date of
the  Registration   Statement  all  necessary  state  securities  and  blue  sky
authorizations  required  to issue the  Omnicom  Stock as  contemplated  by this
Agreement (and pay all expenses  incident  thereto) and (b) cause such shares of
Omnicom  Stock to be  listed on the New York  Stock  Exchange,  subject  only to
official notice of issuance.

     Section 6.7  Exchange Act Filings. For a period of three years  immediately
following  the Closing  Date,  Omnicom shall file in a timely manner all reports
required to be filed  pursuant to and in accordance  with Section 13 and Section
15(d) of the Exchange Act.

     Section 6.8  Indemnification of Directors and Officers.

          (a) Except to the extent required by law, for as long as the directors
     and officers liability  insurance is required to be maintained under clause
     (b)  below,  Omnicom  will not take any  action so as to  amend,  modify or
     repeal the provisions for indemnification of directors, officers, employees
     or agents  contained in the articles of  incorporation  or bylaws (or other
     comparable  charter  documents)  of  the  Surviving   Corporation  and  its
     Subsidiaries  (which as of the Effective Time shall be no less favorable to
     such  individuals than those maintained by the Company and its Subsidiaries
     on the date  hereof)  in such a manner as would  materially  and  adversely
     affect the rights of any  individual  who shall have  served as a director,
     officer,  employee or agent of the Company or any of its Subsidiaries prior
     to the Effective Time to be indemnified by such  corporations in respect of
     their serving in such capacities prior to the Effective Time.

          (b) Except as provided in the next  sentence,  Omnicom shall cause the
     Surviving Corporation to maintain in effect for not less than six years the
     current  policies of  directors'  and  officers'  liability  insurance  and
     fiduciary liability  insurance  maintained by the Company and the Company's
     Subsidiaries with respect to matters occurring prior to the Effective Time;
     provided,  however, that Omnicom, at the Surviving  Corporation's cost, may
     substitute  therefor policies of substantially the same coverage containing
     terms and conditions which are no less favorable than any such insurance in
     effect  immediately  prior  to  the  Effective  Time.  Notwithstanding  the
     foregoing,  Omnicom  shall  not be  required  to pay in any year an  annual
     premium for such  insurance  in excess of $50,000,  and shall cease to have
     any  obligation  under  this  Section  6.8 as soon as it (or the  Surviving
     Corporation)  shall  have  expended  an  aggregate  of  $275,000  for  such
     insurance.  In any year in which the annual  premium shall exceed  $50,000,
     Omnicom shall  maintain (if insurance is  obtainable) at least the level of


                                       39
<PAGE>

     such insurance as may be obtained at an annual premium of $50,000.


                                  ARTICLE VII

                                MUTUAL COVENANTS

     Omnicom,  OmniSub and the  Company  mutually  covenant  and agree with each
other as follows:

     Section 7.1  Preparation of Registration Statement. Omnicom and the Company
shall  prepare  the  Registration  Statement  to be filed with the SEC under the
Securities  Act for the  registration  of the  Omnicom  Stock  to be  issued  in
connection  with this  Agreement.  The  Registration  Statement  and the related
Information  Statement  and  prospectus  forming  a  part  of  the  Registration
Statement  shall be mailed to stockholders of the Company in connection with the
special  meeting of  stockholders,  more fully  described in Section 5.10, to be
held for the  purpose  of  authorizing  the  transactions  contemplated  by this
Agreement  (the  Registration   Statement  and  the  Information  Statement  and
prospectus  are   hereinafter   referred  to  collectively  as  the  "Prospectus
Materials").  Omnicom and the  Company  shall  cooperate  with each other in the
preparation  of the  Prospectus  Materials  and any related  filings as shall be
necessary under the securities laws of any state. Omnicom shall prepare and file
the Registration  Statement and shall use its best efforts to cause it to become
effective  as  promptly as  possible.  Omnicom,  OmniSub  and the Company  shall
furnish all  information  relating  to  Omnicom,  OmniSub or the Company and its
Subsidiaries,  as the case may be, reasonably  necessary in order to prepare the
Prospectus.

     Section 7.2  Affiliates' Representation Letters. Prior to the Closing Date,
the Company shall furnish Omnicom with a list identifying all persons who may be
considered,  in its opinion,  to be  "affiliates"  of the  Company,  as the term
"affiliates"  is used in Paragraphs (c) and (d) of Rule 145 under the Securities
Act or in SEC ASR No. 135 (the "Company Affiliates").  The Company shall use its
best efforts to cause each Person who it has  identified as a Company  Affiliate
and each  additional  Person,  if any, that Omnicom has identified in writing to
the  Company  as a Company  Affiliate,  to  deliver  to Omnicom on or before the
Closing Date the Affiliates Representation Letter attached hereto as Exhibit B.

     Section 7.3  Reasonable Efforts to Consummate Transaction. Omnicom, OmniSub
and the Company will each use its  reasonable  efforts and will fully  cooperate
with each other to consummate the transactions contemplated by this Agreement.

     Section 7.4  Public Announcements.  Omnicom,  OmniSub and the Company  will
consult with each other before  issuing any press  releases or otherwise  making
any public  statements with respect to this Agreement or any of the transactions
contemplated  hereby  and shall not issue  any such  press  release  or make any


                                       40
<PAGE>

public statement  without the prior consent of the other parties which shall not
be  unreasonably  withheld,  except as may be required by law or by  obligations
pursuant to any listing agreements with any national securities exchange.


                                  ARTICLE VIII

                CONDITIONS TO OBLIGATIONS OF OMNICOM AND OMNISUB

     The  obligations  of Omnicom and OmniSub  hereunder to effect the Merger on
the Closing Date are subject to the  fulfillment,  at or before the Closing,  of
each of the following  conditions (except with respect to Sections 8.8 and 8.10,
all or any of which may be waived in whole or in part by  Omnicom,  on behalf of
itself and OmniSub, in its sole discretion):

     Section  8.1  Representations  and  Warranties.   The  representations  and
warranties made by the Company in this Agreement,  or in any Schedule  delivered
pursuant hereto, shall be true and correct in all material respects on and as of
the Closing  Date with the same force and effect as though made on and as of the
Closing  Date or, in the case of  representations  and  warranties  made as of a
specified  date earlier than the Closing  Date,  on and as of such earlier date,
and the Company shall have delivered to Omnicom and OmniSub a certificate, dated
the Closing Date, to such effect.

     Section 8.2 Good Standing Certificates. The Company shall have delivered to
Omnicom and OmniSub a certificate from the Department of Commerce (or comparable
official) of the State of Michigan and each jurisdiction in which the Company is
qualified to do business,  to the effect that the Company is in good standing in
such  jurisdiction  (together with the applicable tax status  certificate).  The
Company  shall have  delivered  to Omnicom  and OmniSub a  certificate  from the
Secretary  of State (or  comparable  official) of each  jurisdiction  in which a
Subsidiary  is organized  or  qualified to do business,  to the effect that such
Subsidiary  is  in  good  standing  in  such  jurisdiction  (together  with  the
applicable tax status certificate).

     Section 8.3  Performance.The Company shall have performed and complied with
the agreements,  covenants and  obligations  required by this Agreement to be so
performed  or  complied  with by the Company at or before the  Closing,  and the
Company  shall have  delivered to Omnicom and OmniSub a  certificate,  dated the
Closing Date, to such effect.

     Section 8.4  Certified  Resolutions.  The Company  shall have  delivered to
Omnicom and OmniSub  copies of resolutions of the boards of directors and of the
stockholders of the Company authorizing the execution,  delivery and performance
of this Agreement and the transactions  contemplated hereby, certified to by the
secretary of the Company.


                                       41
<PAGE>

     Section  8.5  No  Litigation. There  shall not be pending  any  litigation,
proceeding,   investigation,   review,  arbitration  or  claim  by  governmental
representatives  or authorities,  and no preliminary or permanent  injunction or
other  order  shall  have been  issued  and  remain in  effect,  in each case to
restrain or invalidate the consummation by the Company of this Agreement and the
transactions contemplated hereby.

     Section 8.6  Regulatory Consents and Approvals. All consents, approvals and
actions of, filings with and notices to any governmental or regulatory authority
necessary  to  permit  Omnicom,   OmniSub  and  the  Company  to  perform  their
obligations under this Agreement and to consummate the transactions contemplated
hereby shall have been duly  obtained,  made or given and shall be in full force
and effect,  and all  terminations  or expirations of waiting periods imposed by
any governmental or regulatory  authority  necessary for the consummation of the
transactions contemplated by this Agreement,  including under the HSR Act, shall
have occurred.

     Section 8.7  Registration  Statement;  New York Stock Exchange Listing. The
Registration  Statement shall have been declared effective by the SEC and on the
Closing Date shall remain  effective and shall not be subject to a stop order or
any  threatened  stop  orders.  All  necessary  state  securities  and  blue sky
authorizations  required  to carry  out the  transactions  contemplated  by this
Agreement  shall have been  obtained.  The Omnicom Stock  issuable in connection
with this Agreement  shall have been duly listed on the New York Stock Exchange,
subject only to official notice of issuance.

     Section  8.8  Company   Stockholder   Approval.   The  special  meeting  of
stockholders  of the Company  shall have been duly held and at such  meeting the
requisite  affirmative  vote  of the  Company's  stockholders  shall  have  been
recorded to authorize  and to approve the  transactions  contemplated  hereby in
accordance with applicable provisions of Michigan law.

     Section 8.9  Required  Approvals,  Notices and  Consents. The Company shall
have obtained or given,  as the case may be, at no expense to Omnicom or OmniSub
and there shall not have been  withdrawn  or  modified  any  notices,  consents,
approvals or other  actions  listed on Schedule  3.24 hereof.  Each such consent
shall be in form reasonably satisfactory to counsel for Omnicom and OmniSub.

     Section  8.10  Pooling  of  Interests  Accounting.  The SEC  shall not have
objected to  Omnicom's  treatment  of the Merger as a  pooling-of-interests  for
accounting purposes.

     Section 8.11  Opinion of Counsel. Omnicom and OmniSub  shall have  received
the opinions of counsel to the Company, dated the Closing Date, substantially in
the forms and to the effect of Exhibits C-1, C-2 and C-3 hereto.


                                       42
<PAGE>

     Section  8.12  Escrow  Agreement. The  Representative  and the Escrow Agent
shall have entered into the Escrow Agreement.

     Section 8.13 Employment Agreements. The Company and each of the individuals
listed on  Schedule  8.13  shall  have  entered  into an  employment  agreement,
substantially  in the form  previously  approved  by each  such  individual  and
Omnicom.

     Section 8.14  Non-Competition Agreements. Each of the individuals listed on
Schedule   8.14  shall  have  entered  into  a   non-competition   agreement  in
substantially the form of Exhibit D hereto.

     Section  8.15  Affiliates  Representation  Letters.  Each  of  the  Company
Affiliates   shall  have  executed  and  delivered  to  Omnicom  the  Affiliates
Representation Letter referred to in Section 7.2.

     Section 8.16 Material Adverse Effect. Except for the execution and delivery
of this Agreement and the transactions to take place pursuant hereto on or prior
to the Closing Date,  since the Execution Date there shall not have occurred any
Material Adverse Effect, or any event or development  which,  individually or in
the  aggregate,  could  reasonably  be expected to result in a Material  Adverse
Effect.

     Section 8.17  Proceedings.  All  proceedings to be taken on the part of the
Company in connection with the  transactions  contemplated by this Agreement and
all documents  incident  thereto shall be  reasonably  satisfactory  in form and
substance to Omnicom and OmniSub,  and Omnicom and OmniSub  shall have  received
copies of all such  documents  and other  evidences  as Omnicom  and OmniSub may
reasonably  request in order to establish the consummation of such  transactions
and the taking of all proceedings in connection therewith.

     Section 8.18  No Withholding  Certificate. The Company shall have delivered
to Omnicom the  statement  described in Section  1445(b)(3)  of the Code and the
regulations thereunder,  to the effect that the Company is not, and has not been
during the period  specified in Section  897(c)(1)(A)(ii)  of the Code, a United
States real property holding  corporation as defined in Section 897(c)(2) of the
Code.


                                       43
<PAGE>

                                   ARTICLE IX

                    CONDITIONS TO OBLIGATIONS OF THE COMPANY

     The  obligations of the Company  hereunder to effect the Merger are subject
to the  fulfillment,  at or  before  the  Closing,  of  each  of  the  following
conditions  (except  with  respect  to Section  9.8,  all or any of which may be
waived in whole or in part by the Company in its sole discretion):

     Section  9.1  Representations  and  Warranties.   The  representations  and
warranties  made by Omnicom  and  OmniSub in this  Agreement,  taken as a whole,
shall be true and correct in all material respects on and as of the Closing Date
with the same force and effect as though made on and as of the Closing Date, and
Omnicom and OmniSub shall have delivered to the Company a certificate, dated the
Closing Date, to such effect.

     Section 9.2 Good Standing Certificates. Omnicom shall have delivered to the
Company a  certificate  from the  Secretary of State of the State of New York to
the effect that  Omnicom is in good  standing in such state;  and OmniSub  shall
have  delivered to the Company a certificate  from the Department of Commerce of
the State of  Michigan to the effect  that  OmniSub is in good  standing in such
state.

     Section  9.3  Performance.  Omnicom and OmniSub  shall have  performed  and
complied  with  the  agreements,  covenants  and  obligations  required  by this
Agreement  to be so  performed  or  complied  with by Omnicom  and OmniSub at or
before the Closing,  and Omnicom and OmniSub shall have delivered to the Company
a certificate, dated the Closing Date, to such effect.

     Section 9.4 Certified Resolutions. Omnicom and OmniSub shall have delivered
to the Company a copy of the  resolutions  of the boards of directors of each of
Omnicom and OmniSub authorizing the execution,  delivery and performance of this
Agreement  and  the  transactions  contemplated  hereby,  certified  to  by  the
secretary or assistant secretary of Omnicom and OmniSub, respectively.

     Section  9.5  No Litigation.  There  shall not be pending  any  litigation,
proceeding,   investigation,   review,  arbitration  or  claim  by  governmental
representatives  or authorities,  and no preliminary or permanent  injunction or
other  order  shall have been  issued and  remain in  effect,  in each case,  to
restrain or invalidate the  consummation by Omnicom or OmniSub of this Agreement
and the  transactions  contemplated  hereby,  and Omnicom and OmniSub shall have
delivered to the Company a certificate, dated the Closing Date, to such effect.

     Section 9.6  Regulatory Consents and Approvals. All consents, approvals and
actions of, filings with and notices to any governmental or regulatory authority
necessary  to  permit  the  Company,   Omnicom  and  OmniSub  to  perform  their


                                       44
<PAGE>

obligations under this Agreement and to consummate the transactions contemplated
hereby shall have been duly  obtained,  made or given and shall be in full force
and effect,  and all  terminations  or expirations of waiting periods imposed by
any governmental or regulatory  authority  necessary for the consummation of the
transactions contemplated by this Agreement,  including under the HSR Act, shall
have occurred.

     Section 9.7  Registration  Statement,  New York Stock Exchange Listing. The
Registration  Statement shall have been declared effective by the SEC and on the
Closing Date shall remain  effective and shall not be subject to a stop order or
any  threatened  stop  orders.  All  necessary  state  securities  and  blue sky
authorizations  required  to carry  out the  transactions  contemplated  by this
Agreement  shall have been  obtained.  The Omnicom Stock  issuable in connection
with this Agreement  shall have been duly listed on the New York Stock Exchange,
subject only to official notice of issuance.

     Section  9.8  Company   Stockholder   Approval.   The  special  meeting  of
stockholders  of the Company  shall have been duly held and at such  meeting the
requisite  affirmative  vote  of the  Company's  stockholders  shall  have  been
recorded to authorize  and to approve the  transactions  contemplated  hereby in
accordance with applicable provisions of Michigan law.

     Section  9.9  Opinion of  Counsel.  The  Company  shall have  received  the
opinions of Davis & Gilbert,  counsel to Omnicom and OmniSub,  dated the Closing
Date,  substantially  in the  form and to the  effect  of  Exhibits  E-1 and E-2
hereto.

     Section  9.10  Escrow  Agreement. Omnicom  and the Escrow  Agent shall have
entered into the Escrow Agreement.

     Section 9.11  Material Adverse Effect.Except for the execution and delivery
of this Agreement and the transactions to take place pursuant hereto on or prior
to the Closing Date, since the Execution Date there shall not have occurred with
respect to Omnicom any material  adverse  change in the condition  (financial or
otherwise), liabilities, results of operations, assets, properties or businesses
of Omnicom and its subsidiaries  taken as a whole, or any events or developments
which, individually or in the aggregate,  could reasonably be expected to have a
material adverse change in the condition (financial or otherwise),  liabilities,
results of  operations,  assets,  properties  or  businesses  of Omnicom and its
subsidiaries taken as a whole .

     Section 9.12  Fairness Opinion. The Company shall have received the written
opinion from McDonald & Company Securities, Inc. referenced in Section 3.28.

     Section  9.13  Proceedings.  All  proceedings  to be  taken  on the part of
Omnicom and OmniSub in connection  with the  transactions  contemplated  by this
Agreement and all documents incident thereto shall be reasonably satisfactory in


                                       45
<PAGE>

form and substance to the Company, and the Company shall have received copies of
all such documents and other evidences as the Company may reasonably  request in
order to establish the  consummation of such  transactions and the taking of all
proceedings in connection therewith.


                                   ARTICLE X

                             ADDITIONAL AGREEMENTS

     Section 10.1  Termination.  This Agreement may be terminated and the Merger
and other transactions contemplated herein may be abandoned at any time prior to
the Closing,  notwithstanding the adoption of this Agreement by the stockholders
of the Company by:

          (a) mutual  consent of the Boards of Directors of each of the Company,
     Omnicom and OmniSub;

          (b) either  Omnicom and OmniSub,  on the one hand, or the Company,  on
     the  other  hand,  (provided  the  terminating  party is not then in breach
     hereof) if the other party  breaches  its  representations,  warranties  or
     covenants  hereunder in any  material  respect and such breach is not cured
     within  30 days  after the  delivery  of  written  notice  thereof  to such
     breaching party unless the breach of any such representation,  warranty, or
     covenant does not  materially  adversely  affect the  financial  condition,
     business  or assets of the  breaching  party or the  ability  of any or all
     parties to consummate the transactions contemplated hereby;

          (c) the  Boards of  Directors  of either  Omnicom  and  OmniSub or the
     Company in the event a final and nonappealable order, decree or judgment of
     any  court,  agency,  commission  or  governmental  authority  is issued or
     existing against the parties or any of them or any of their directors which
     would enjoin the transactions contemplated hereby;

          (d) either  Omnicom and OmniSub,  on the one hand, or the Company,  on
     the other hand, if the Closing Date has not occurred  prior to the close of
     business on December 29, 1995;

          (e) either  Omnicom and OmniSub,  on the one hand, or the Company,  on
     the other  hand,  at any time prior to the  scheduled  Closing  Date if the
     conditions to such  parties'  obligation to close set forth in Article VIII
     or IX, respectively,  shall have become incapable of being satisfied by the
     close of business on December 29, 1995; or

          (f) by the Board of  Directors  of the Company if the  Company  enters
     into a definitive  agreement accepting an Acquisition Proposal (or resolves
     to do so) which the Board of Directors concludes in good faith on the basis


                                       46
<PAGE>

     of advice  from  independent  counsel  that (i) such  action is required in
     order for such Board of Directors  to act in a manner  which is  consistent
     with its fiduciary  obligations  imposed under  applicable law and (ii) the
     Acquisition  Proposal would be an economically  superior alternative to the
     Merger for the Company's stockholders.

     Section 10.2  Effect of Termination. (a) If this Agreement is terminated as
provided in Section 10.1 hereof, except as provided in Section 10.2(b) below and
as otherwise  provided in this clause (a), this Agreement shall forthwith become
void and there  shall be no  liability  on the part of any  party  hereto or its
respective  officers  or  directors  arising  from  the  act of  such  permitted
termination.  Nothing herein shall  preclude,  however,  any action or claim for
damages to which any party is  otherwise  entitled  as a result of breach by the
other party hereto.

     (b) In the event that  either (i) the  Company or Omnicom  terminates  this
Agreement  pursuant to Section 10.1 (e) following a failure of the  stockholders
of the  Company to approve  this  Agreement  and the  transactions  contemplated
hereby,  if before the special meeting of stockholders of the Company to approve
this Agreement and the transactions  contemplated hereby there shall have been a
proposal  or offer  for an  Acquisition  Proposal  which at the time of the such
stockholders  meeting  shall not have been rejected by the Board of Directors of
the Company,  or (ii) the Company  terminates this Agreement pursuant to Section
10.1(f),  then the Company  shall,  within one business  day after  receipt of a
request from Omnicom, pay to Omnicom in cash a termination fee of $1,000,000.


                                   ARTICLE XI

                           SURVIVAL; INDEMNIFICATION

     Section 11.1 Survival. Subject to the limitations set forth in Section 11.4
hereof, the respective representations,  warranties, covenants and agreements of
the Company,  Omnicom and OmniSub  contained in this  Agreement  (including  the
Annexes  hereto) or in any  Schedule,  or in any  certificate  delivered  at the
Closing,  shall  survive  the  Closing.  Notwithstanding  any right of any party
hereto fully to investigate the affairs of any other party, and  notwithstanding
any knowledge of facts determined or determinable pursuant to such investigation
or right of investigation,  each party hereto shall have the right to rely fully
upon the  representations,  warranties,  covenants  and  agreements of any other
party contained in this Agreement or in any Schedule  furnished by another party
or in any certificate delivered at the Closing by any other party.

     Section 11.2  Obligation to Indemnify. Subject to the limitations set forth
in Section 11.4 hereof, the Stockholders,  pro-rata together with the EPU Holder
and the Former Eligible Employee  Holders,  through the provisions of the Escrow
Agreement,  agree to indemnify Omnicom, OmniSub and their respective affiliates,


                                       47
<PAGE>

directors,  officers and  employees  (collectively  the  "Indemnified  Parties")
against,  and to protect,  save and keep harmless the Indemnified  Parties from,
and  to  assume  liability  for,  (i)  payment  of  all  liabilities  (including
liabilities  for  Taxes),  obligations,   losses,  damages,  penalties,  claims,
actions,  suits,  judgments,  settlements,  out-of-pocket  costs,  expenses  and
disbursements  (including  reasonable  costs of  investigation,  and  reasonable
attorneys',  accountants' and expert  witnesses' fees,  except that if a suit is
commenced  against the Surviving  Corporation the reasonable  attorneys' fees of
the Surviving  Corporation to defend such suit shall not be included  within the
definition  of Losses and only payments of a judgment or settlement of such suit
shall be included  within such  definition) of whatever kind and nature,  to the
extent not covered by  insurance  maintained  for the benefit of the  applicable
Indemnified Parties (collectively, "Losses"), that may be imposed on or incurred
by the  Indemnified  Parties  as a  consequence  of or in  connection  with  any
inaccuracy  or breach of any  representation  or  warranty  or  covenant  of the
Company  contained in or made  pursuant to this  Agreement,  or the breach of or
failure by the Company to perform or discharge any of its obligations under this
Agreement or under the transactions contemplated hereby, and (ii) payment of any
judgment or  settlement  in respect of any matter set forth on Schedule  3.10 in
excess of the  $400,000  aggregate  reserves  recorded  for such  matters on the
Company's  financial  records,  all of which are  contingencies  whose  outcomes
cannot reasonably be determined as at the date hereof. The term "Losses" as used
herein  is  not  limited  to  matters  asserted  by  third  parties  against  an
Indemnified  Party but includes  Losses  incurred or sustained by an Indemnified
Party in the absence of third party claims.

     Section 11.3  Indemnification Procedures.

     11.3.1  Notice of Asserted  Liability. Omnicom  shall  promptly give notice
(the  "Claims  Notice")  to  the   Representative   of  any  demand,   claim  or
circumstances  which gives  rise,  or with the lapse of time would or might give
rise to a claim or the commencement (or threatened  commencement) of any action,
proceeding  or  investigation  that  may  result  in any  Losses  (an  "Asserted
Liability")  without regard to the limitations on  indemnification  set forth in
Section 11.4 below.  The Claims Notice shall describe the Asserted  Liability in
reasonable detail, shall indicate the amount (estimated if necessary, and to the
extent  feasible)  of the  Losses  that  have  been  or may  be  suffered  by an
Indemnified  Party.  The Claims  Notice with respect to the matters set forth in
Section 3.10 shall be deemed to have been given by Omnicom.

     11.3.2 Defense of Asserted Liability. If the facts giving rise to the claim
for  indemnification  shall involve any actual or threatened  claim or demand by
any third party against any Indemnified Party or by an Indemnified Party against
any third party (a "Third Party Claim"),  Omnicom shall have the right to defend
or prosecute such Third Party Claim through counsel of Omnicom's own choosing.


                                       48
<PAGE>

     11.3.3  Cooperation. The Representative, on behalf of the Stockholders, the
EPU  Holder and the Former  Eligible  Employee  Holders,  shall be  entitled  to
participate  in  the  defense  or  prosecution  of any  such  claim,  demand  or
litigation  at his own  expense  and through  counsel of his own  choosing,  but
control thereof shall remain with Omnicom.

     11.3.4  Settlements. Omnicom may not settle any claim, demand or litigation
which would give rise to an indemnification  claim hereunder without the consent
of the  Representative,  which  consent  may  not be  unreasonably  withheld  or
delayed.

     Section 11.4  Limitations on Indemnification.

     11.4.1  Indemnity  Cushion.  Except as  provided in the next  sentence,  no
claim,  action or other  Asserted  Liability  (other than an Asserted  Liability
under  Sections 3.26 and 3.27 hereof) with respect to Losses  arising out of any
of the matters referred to in clause (i) of Section 11.2 may be reimbursed until
such time as  claims,  actions or other  Asserted  Liabilities  with  respect to
Losses  arising  out of any of the  matters  referred  to in Section  11.2 shall
exceed $250,000 in the aggregate (in which case the Company shall be liable only
for all  Losses  in excess  of  $250,000).  Losses  arising  out of an  Asserted
Liability  under Sections 3.26 or 3.27, and judgments or settlements  (in excess
of the $400,000  aggregate reserve) arising out of the matters referred to under
clause (ii) of Section 11.2 shall be reimbursable without regard to the $250,000
cushion.

     11.4.2  Termination of Indemnification Obligations and Other Limitations.

          (i) Except as provided in the next  sentence,  the  obligation  of the
     Stockholders,  the EPU Holder and the Former Eligible  Employee  Holders to
     indemnify  shall  terminate  and be of no  further  force and effect on the
     "Termination  Date," which shall be earlier to occur of (x) the date of the
     first  independent  audit report,  if any, of the financial  results of the
     Surviving Corporation following the Effective Time or (y) one year from the
     Effective Time; provided, however, that (A) claims for Losses arising under
     clause  (i)  of  Section  11.2  asserted  in  writing  on or  prior  to the
     Termination  Date shall  survive  until they are  decided and are final and
     binding upon Omnicom and the Representative (on behalf of the Stockholders,
     the EPU Holder and the Former Eligible Employee Holders) as contemplated by
     the Escrow Agreement,  and (B) no claim for Losses arising under clause (i)
     of Section 11.2 may be asserted after the  Termination  Date. The foregoing
     limitation  shall  not  apply  with  respect  to  matters  as to  which  an
     Indemnified  Party is  entitled  to be  indemnified  under  clause  (ii) of
     Section 11.2.

          (ii) The parties agree that the satisfaction of liabilities  under the
     Escrow Agreement, and the procedures to be followed in respect thereof, are
     

                                       49
<PAGE>

     subject to the specific provisions of such Escrow Agreement relating to the
     release of the Escrow Fund.

          (iii) The  rights of Omnicom  and the other  Indemnified  Parties  set
     forth in this  Article XI are the  exclusive  remedy and in lieu of any and
     all other  rights and remedies  with  respect to Losses  arising out of the
     matters  specified  in Section  11.2,  and such Losses  shall be  satisfied
     solely  from the Escrow  Fund in  accordance  with the  provisions  of this
     Article XI and the  provisions  of the Escrow  Agreement,  and  Omnicom and
     OmniSub agree that none of the Indemnified  Parties shall have any recourse
     for the payment of any Losses of any kind whatsoever  arising under Section
     11.2 against the past, present or future stockholders,  directors, officers
     and  employees of the Company,  nor shall any of such persons be personally
     liable for any such Losses,  it being  expressly  understood  that the sole
     remedy of the  Indemnified  Parties  shall be against  the  Escrow  Fund in
     accordance with the Escrow Agreement.

     11.4.3  Treatment.  Any payments to an Indemnified Party under this Article
XI (or under  the  Escrow  Agreement)  shall be  treated  by the  parties  as an
adjustment to purchase price.

     11.4.4  Effect of Taxes. A payment due and payable by the Stockholders, the
EPU Holder and the Former  Eligible  Employee  Holders  hereunder  (or under the
Escrow Agreement) with respect to the matters set forth under Section 11.2 shall
be decreased to the extent of any net  reduction in Taxes  actually  realized by
Omnicom or one of its subsidiaries  upon its payment of Losses,  and taking into
account  the tax  consequences  to the  Indemnified  Party of the receipt of any
payment  due and  payable  by the  Stockholders,  the EPU  Holder and the Former
Eligible Employee Holders under this Article XI (or under the Escrow Agreement).


                                  ARTICLE XII

                                 MISCELLANEOUS

     Section  12.1  Expenses.  The  parties  hereto  shall  pay all of their own
expenses relating to the transactions contemplated by this Agreement, including,
without limitation, the fees and expenses of their respective counsel, financial
advisors and accountants.

     Section 12.2  Governing Law. The interpretation  and  construction  of this
Agreement, and all matters relating hereto, shall be governed by the laws of the
State of Michigan without reference to its conflict of laws provisions.


                                       50
<PAGE>

     Section  12.3  "Person"  Defined.   "Person"  shall  mean  and  include  an
individual,  a  partnership,  a  joint  venture,  a  corporation,  a  trust,  an
unincorporated  organization  and a  government  or other  department  or agency
thereof.

     Section 12.4  "Knowledge"  Defined.  Where any  representation and warranty
contained  in  this  Agreement  is  expressly  qualified  by  reference  to best
knowledge,  information and belief of a party, such term shall be limited to the
actual   knowledge   of  the   executive   officers  of  the  party  making  the
representation  and warranty and such knowledge that would have been  discovered
by such executive officers after due and reasonable inquiry.

     Section 12.5  "Affiliate" Defined. As used in this Agreement,an "affiliate"
of any Person, shall mean any Person that directly, or indirectly through one or
more intermediaries,  controls,  or is controlled by, or is under common control
with such Person.

     Section 12.6  Captions.The Article and Section captions used herein are for
reference  purposes  only,  and  shall  not in any way  affect  the  meaning  or
interpretation of this Agreement.

     Section  12.7  Confidentiality.  Unless  and until the  Closing  shall have
occurred  and  except  as may be  required  in  connection  with (i) any  public
announcement that Omnicom, OmniSub and the Company have executed this Agreement,
or (ii) any governmental  filings  contemplated  under this Agreement,  Omnicom,
OmniSub and the Company  shall,  and shall  cause  their  respective  employees,
agents,  consultants  and  representatives  to,  maintain in confidence  and not
otherwise use or permit the use of information,  documents,  and data respecting
any other party to this Agreement  furnished to them, or to any person or entity
on their behalf. If this Agreement is terminated pursuant to Section 10.1 hereof
or  otherwise,  each party shall (and Omnicom and OmniSub  shall cause any third
party to whom it has made  permitted  disclosures  to) (i)  return  to the other
party or destroy all written information, documents, and data furnished to it or
to any person or entity on its  behalf,  and (ii)  maintain  in  confidence  all
information  received by it, or by any person or entity on its behalf, and shall
not use or permit  the use of such  information  by others  except to the extent
that  such  information  is  elsewhere  available  to the  public  or  otherwise
rightfully  obtained  without  violation  of  this  Section  12.7  or any  other
agreement.  Notwithstanding  the foregoing,  the foregoing  provision  shall not
apply to the extent that  Omnicom is required to make any  announcement  or file
information  relating  to or  arising  out of this  Agreement  by  virtue of the
federal  securities  laws of the  United  States or the  rules  and  regulations
promulgated  thereunder  or other rules of the New York Stock  Exchange,  or any
announcement by any party pursuant to applicable law or regulations.

     Section  12.8  Notices.  Unless  otherwise  provided  herein,  any  notice,
request, instruction or other document to be given hereunder by any party to any
other  party shall be in writing and shall be deemed to have been given (a) upon
personal  delivery,  if  delivered  by hand,  (b) three  days  after the date of


                                       51
<PAGE>

deposit in the mails,  postage prepaid, if mailed by certified first class mail,
or (c) the next  business day if sent by facsimile  transmission  (if receipt is
electronically confirmed) or by a prepaid overnight courier service, and in each
case at the  respective  addresses  or  numbers  set forth  below or such  other
address or number as such party may have fixed by notice:

     If to either Omnicom or to OmniSub, addressed to:

                Omnicom Group Inc.
                437 Madison Avenue
                New York, New York 10022
                Attention: Chief Executive Officer, Diversified Agency Services
                Fax: (212) 415-3536

                with a copy to:

                Davis & Gilbert
                1740 Broadway
                New York, New York 10019
                Attention: Michael D. Ditzian, Esq.
                Fax: (212) 468-4888

     If to the Company, addressed to:

                Ross Roy Communications, Inc.
                100 Bloomfield Hills Parkway
                Bloomfield Hills, Michigan 48304
                Attention: Chief Executive Officer
                Fax: (810) 433-6421



                                       52
<PAGE>


                with a copy to:

                Dykema Gossett PLLC
                Suite 300
                1577 North Woodward Avenue
                Bloomfield Hills, Michigan 48304
                Attention: Rex E. Schlaybaugh, Jr.
                Fax: (810) 540-0763

     Section  12.9  Parties  in  Interest.  This  Agreement  and the  rights and
obligations  of the  parties  hereunder  shall not be  assignable  to any Person
without the written consent of all parties.

     Section 12.10 Severability. In the event any provision of this Agreement is
found to be void and  unenforceable  by a court of competent  jurisdiction,  the
remaining  provisions of this Agreement  shall  nevertheless be binding upon the
parties with the same effect as though the void or  unenforceable  part had been
severed and deleted.

     Section 12.11  Counterparts.  This Agreement may be executed in two or more
counterparts, all of which taken together shall constitute one instrument.

     Section  12.12  Entire  Agreement. This  Agreement,  including the Annexes,
Schedules and Exhibits, and other documents referred to herein which form a part
hereof,  contains the entire understanding of the parties hereto with respect to
the  subject  matter  contained  herein  and  therein.   The  Company  makes  no
representation  or  warranty  to Omnicom or OmniSub  except as set forth in this
Agreement  (including  the Annexes) and the  Schedules  hereto.  This  Agreement
supersedes all prior oral and written agreements and understandings  between the
parties with respect to such subject matter.

     Section  12.13  Amendment.  This  Agreement  and the Annexes and  Schedules
attached hereto or heretofore delivered may be amended, supplemented or modified
by the parties  hereto only by an agreement in writing  signed on behalf of each
of the parties hereto following due authorization at any time.

     Section  12.14  Third Party  Beneficiaries. Each party hereto  intends that
this  Agreement  shall not  benefit or create any right or cause of action in or
onbehalf  of any person  other  than the  parties  hereto  and their  respective
successors and assigns as permitted under Section 12.9.

     Section 12.15  Extension; Waiver. The Company, on the one hand, and Omnicom
(on behalf of itself and  OmniSub),  on the other hand,  each may, by instrument
duly  authorized in writing signed on behalf of each party,  (a) extend the time
for performance of any of the obligations or other acts of such other party, (b)


                                       53
<PAGE>

waive any inaccuracies in the representations and warranties of such other party
contained herein or in any document  delivered pursuant hereto, or (c) except as
set  forth  in the  first  paragraph  of each of  Articles  VIII  and IX,  waive
compliance  with  any of the  agreements  or  conditions  of  such  other  party
contained  herein.  No such waiver or  extension  shall be  effective  unless in
writing (and  specifically  describing the provision or provisions being waived)
and  signed by the party or  parties  sought to be bound  thereby,  and any such
waiver or extension on a specific occasion shall not imply a waiver or extension
on a future occasion.

                                       54

<PAGE>


     IN WITNESS WHEREOF,  Omnicom,  OmniSub and the Company have each caused its
corporate  name  to  be  hereunto  subscribed  by  its  officer  thereunto  duly
authorized on the day and year first above written.


                                   OMNICOM GROUP INC.


                                   By:   /S/ JOHN D. WREN
                                      ---------------------------------------
                                      Name:  John D. Wren
                                      Title: Chief Executive Officer, 
                                             Diversified Agency Services 
                                             Division of Omnicom Group, Inc.



                                   RRC ACQUISITION INC.


                                   By:   /S/ JOHN D. WREN
                                      ---------------------------------------   
                                      Name:  John D. Wren
                                      Title: President



                                   ROSS ROY COMMUNICATIONS, INC.


                                   By:   /S/ PETER MILLS
                                      ---------------------------------------
                                      Name:  Peter Mills
                                      Title: Chief Executive Officer




                                       55



                                                                     Exhibit 2.2

                                ESCROW AGREEMENT

     ESCROW  AGREEMENT,  dated ________,  1995 (the "Escrow  Agreement"),  among
OMNICOM GROUP INC., a New York corporation ("Omnicom"); ROSS ROY COMMUNICATIONS,
INC., a Michigan corporation (the "Surviving Corporation");  ___________________
as Representative (the  "Representative") of the former stockholders of Ross Roy
Communications,  Inc., a Michigan  corporation  (the  "Company");  and THE CHASE
MANHATTAN BANK, N.A., as Escrow Agent (the "Escrow Agent").

     Omnicom,  RRC Acquisition Inc. ("OmniSub") and the Company are parties to a
certain  Agreement  and  Plan  of  Merger  dated  June  __,  1995  (the  "Merger
Agreement"),  pursuant to which Omnicom  acquired the Company through the merger
of OmniSub with and into the Company.  Under the Merger  Agreement,  the Company
has  made  certain  representations  and  warranties,   and  undertaken  certain
obligations,  to Omnicom,  and the former stockholders of the Company,  together
with the former holder of the Company's  equity  participation  units and Former
Eligible Employee Holders (as such term is defined in the Company's  Articles of
Incorporation  immediately  prior to the  Effective  Time),  whose  rights  were
settled  in shares of  Omnicom  Stock  (collectively  referred  to herein as the
"Shareholders") through the mechanism of this Escrow Agreement have approved the
indemnification  of  Omnicom  against  certain  Losses  which  Omnicom  or other
Indemnified Parties may sustain or to which Omnicom or other Indemnified Parties
may be subjected (as more fully set forth in the Merger Agreement).  Pursuant to
the Merger Agreement,  the Shareholders have approved the creation of an "Escrow
Fund" in accordance  with the terms of this Agreement to secure Omnicom  against
such  Losses.  Any claims  made by Omnicom  against  the Escrow  Fund are herein
collectively called "Claims", and individually a "Claim"; however, a Claim shall
become reimbursable hereunder only if, and to the extent that, it becomes "Final
Claim for Reimbursement", as defined in Section 2.4 hereof. Terms defined in the

                                       1
<PAGE>

Merger Agreement that are not otherwise  defined herein are used herein with the
meanings ascribed to them therein.

     The  appointment  of the  Representative  and  the  terms  of  this  Escrow
Agreement were approved by the  Shareholders of the Company at a Special Meeting
of Shareholders held on ________, 1995.

     Accordingly, the parties hereby agree as follows:

1. ESTABLISHMENT OF ESCROW FUND

     1.1  Simultaneously  herewith,  pursuant to the Merger Agreement,  Chemical
Bank, in accordance  with  instructions  from  Omnicom,  is depositing  with the
Escrow Agent on behalf of the Shareholders,  certificates registered in the name
of the  Shareholders,  representing  in the  aggregate  the  number of shares of
Omnicom Stock set forth opposite each Shareholder's name in Column I of Schedule
A hereto,  together  with stock  powers in respect  of such  certificates,  duly
executed in blank. Such Omnicom Stock, and any other property distributable with
respect thereto or in exchange  therefor and held in the Escrow Fund as provided
in Section  4.2  hereto,  are herein  collectively  referred  to as the  "Common
Stock".  The Escrow  Fund  shall be held by the Escrow  Agent and shall be dealt
with by the Escrow Agent in  accordance  with the terms and  conditions  of this
Escrow Agreement.

     1.2 Specific  Funds within the Escrow Fund.  The Omnicom Stock set forth in
Column I of Schedule A hereto  (having an aggregate  Market Value of $2,525,000)
shall constitute that portion of the Escrow Fund which is sometimes  hereinafter
referred to as the  "General  Escrow  Fund" and the  Omnicom  Stock set forth in
Column II of Schedule A hereto (having an aggregate  Market Value of $1,300,000)
shall constitute that portion of the Escrow Fund which is sometimes  hereinafter
referred to as the "Additional Escrow Fund".

                                       2
<PAGE>

2. PROCEDURES WITH RESPECT TO CLAIMS

     2.1 General  Claims by Omnicom.  (a) If an  Indemnified  Party has a Claim,
including a Claim arising from a suit, action,  proceeding or investigation by a
third party that may result in any Losses  under  clause (i) of Section  11.2 of
the Merger  Agreement  ("General  Losses" and the Claims with  respect  thereto,
"General  Claims"),  Omnicom  shall give notice  thereof  (the  "General  Claims
Notice")  substantially  in the form of and in conformity with the  instructions
contained in Exhibit 1 hereto to the Representative and to the Escrow Agent. The
General  Claims Notice shall  describe the General  Claim in reasonable  detail,
shall indicate the amount (estimated,  if necessary, and to the extent feasible)
of the General  Losses  that have been or may be suffered by Omnicom  and/or the
applicable  Indemnified  Party,  as the case  may be.  General  Losses  shall be
reimbursed solely out of the General Escrow Fund.

     (b) Within 30 days after  Omnicom shall give the  Representative  a General
Claims Notice (or sooner, if the nature of the Asserted  Liability so requires),
the  Representative,  by notice to Omnicom  with a copy to the Escrow Agent (the
"Representative's  Notice"),  either  shall (a) concede  liability in whole with
respect to such General Claim,  (b) demand that an arbitration  proceeding under
Section  2.3  hereof be held  within 30 days  after the  Determination  Date (as
defined in Section  2.3(b))  to  determine  whether  such  General  Claim is one
covered by Section 11.2 of the Merger Agreement and this Escrow Agreement and/or
in the case of matters  other than Third Party Claims to determine the amount of
the General Claim, or (c) concede  liability in part and demand such arbitration
in part. The failure by the Representative to give the  Representative's  Notice
within the specified  period shall be deemed a concession of liability in whole.
The  Representative  shall be  afforded  reasonable  access  by  Omnicom  to the
documentation  relating to any Asserted  Liability  included in a General Claims
Notice  as  may  under  the   circumstances   reasonably   be  required  by  the

                                       3
<PAGE>

Representative to make a determination required to be made by the Representative
under this Section 2.1.

     2.2 Special Claims by Omnicom.  (a) It is agreed that the matters listed on
Schedule 3.10 to the Merger  Agreement set forth  contingencies  whose  outcomes
cannot reasonably be determined as at the date hereof, and that the Shareholders
have  conceded  that  judgments or  settlements  with respect to such matters in
excess of the  $400,000  aggregate  reserves  recorded  for such  matters on the
Company's financial records are indemnifiable  Losses covered by Section 11.2 of
the Merger Agreement.  All such judgments and settlements are herein referred to
as "Special  Losses",  and the Claims with respect  thereto,  "Special  Claims."
Special Losses shall be reimbursed solely out of the Additional Escrow Fund.

     (b) At such time as the outcome of a Special Loss has been determined, such
that the  contingency  with  respect  thereto  shall have become  liquidated  in
amount,  Omnicom shall give notice  thereof to the  Representative  requesting a
distribution  to it out of the  Additional  Escrow  Fund of a  specified  dollar
amount (the "Liquidated Request"). Within 30 days thereafter, the Representative
shall  give a  Representative's  Notice  in which he either  shall  (a)  concede
liability with respect to the Liquidated  Request,  in whole or in part, and/or,
(b) if  any  part  of  the  Liquidated  Request  is  disputed,  demand  that  an
arbitration  proceeding  under  Section  2.3 be held  within  30 days  after the
Determination  Date or  thereafter  to  resolve  the  dispute  in respect of the
Liquidated   Request.   The   failure   of  the   Representative   to  give  the
Representative's Notice within the specified period shall be deemed a concession
of liability in whole with respect to the Liquidated Request. The Representative
shall be afforded reasonable access by Omnicom to the documentation  relating to
any Special Claim as may under the  circumstances  reasonably be required by the
Representative to make a determination required to be made by the Representative
under this Section 2.2.

     2.3 Arbitration.  (a) If any demand shall be made for arbitration hereunder

                                       4
<PAGE>

in respect of any Claim, Liquidated Request or other matter in dispute hereunder
between the Representative and Omnicom, such Claim, Liquidated Request or matter
shall be settled by  arbitration  in Detroit,  Michigan,  before one  arbitrator
chosen from the Commercial Panel in accordance with the Rules then pertaining of
the American  Arbitration  Association.  Omnicom and the  Surviving  Corporation
shall  each pay  one-half  of the  fees  and  expenses  of the  arbitrator.  The
arbitrator  shall  consider only the items in dispute and shall be instructed to
act within thirty days to resolve all items in dispute.  The "final decision" of
the arbitrator  shall be a conclusive  determination  of the matter and shall be
binding  upon the  Representative,  the  Shareholders,  Omnicom,  the  Surviving
Corporation and the Escrow Agent,  and shall not be contested by any of them. In
making its determination the arbitrator shall be instructed to take into account
the definition of Losses, the limitations of liability applicable to Losses, and
other provisions of Article XI of the Merger Agreement.

     (b)  Notwithstanding  anything to the contrary contained in this Agreement,
the first date on which an  arbitration  shall take place  pursuant to a party's
demand therefor shall be on the "Determination  Date", which shall be the second
business day  following  the date one year from the date  hereof.  All Claims or
Liquidated  Requests  as to  which  a  party  shall  have  theretofore  demanded
arbitration  (in whole or in part) shall be submitted to the  Arbitrator at that
time  for  final   determination.   Demands  for  arbitration   made  after  the
Determination  Date shall be submitted to  arbitration  as and when such demands
are made.

     2.4 Final Claims for Reimbursement.  All Claims or Liquidated  Requests for
which the  Representative  shall  have  conceded  liability,  or shall have been
deemed to have conceded  liability  pursuant to the provisions of Section 2.1 or
2.2,  shall be final and  binding  upon the  Representative,  the  Shareholders,
Omnicom  and the  Surviving  Corporation.  If the  Representative  shall  demand
arbitration  as provided in Section 2.1 or 2.2, the Claim or Liquidated  Request
that was objected to shall become final and binding upon Omnicom,  the Surviving
Corporation, the Representative and the Shareholders upon (a) a final decision

                                       5
<PAGE>

in arbitration  as provided in Section 2.3 hereof,  or (b) upon the matter being
otherwise  agreed to in writing by Omnicom  and the  Representative.  A Claim or
Liquidated  Request  which is final and  binding  upon  Omnicom,  the  Surviving
Corporation,  the  Shareholders and the  Representative  as of any given time is
hereinafter  called  a  "Final  Claim  for  Reimbursement";   Final  Claims  for
Reimbursement may be "Final General Claims for  Reimbursement" if they relate to
General Losses or may be "Final Special Claims for Reimbursement" if they relate
to Special Losses.  Upon  compliance with the procedures  prescribed in Sections
2.1, 2.2 and 2.3 hereof, to the extent applicable,  Omnicom,  from time to time,
shall  give  notice  to the  Escrow  Agent,  with a copy to the  Representative,
setting  forth all Final  Claims for  Reimbursement  in their  respective  exact
aggregate amounts.

     2.5  Limitation of Claims. Notwithstanding anything to the contrary herein:

          (a) None of the General  Escrow Fund will be released and delivered to
     Omnicom  pursuant to any Claim  (other than a Claim under  Section  3.26 or
     3.27 of the  Merger  Agreement)  except to the  extent  that the  aggregate
     amount of all Final General Claims for Reimbursement (ignoring any Claim(s)
     under  Section  3.26 or 3.27 of the Merger  Agreement)  exceeds  the sum of
     $250,000 and then only to the extent of such excess.  Special Losses may be
     asserted  against the Additional  Escrow Fund, and Final Special Claims for
     Reimbursement  shall  be  reimbursed  out of the  Additional  Escrow  Fund,
     without regard to the $250,000 "cushion."

          (b) Any payment to be made from, or any  reservation  to be made in or
     against,  the  General  Escrow  Fund  or  the  Additional  Escrow  Fund  in
     accordance  with  Section 3 hereof  shall be decreased to the extent of any
     net  reduction  in  taxes  actually  realized  by  Omnicom  or  one  of its
     subsidiaries  upon its payment of Losses or judgments or  settlements,  and
     taking into account the tax  consequences  to Omnicom of the receipt of any

                                       6
<PAGE>

     payment due and payable to Omnicom under this Escrow Agreement.

3. DISTRIBUTIONS FROM ESCROW FUND

     3.1 Definitions.  As used herein:  "First Distribution Date" shall mean the
business  day next  following  the earlier of (i) the date  following  the first
independent  audit  report,  if any, of the  financial  results of the Surviving
Corporation  following the Effective Time or (ii) one year from the date hereof;
and "Final  Distribution  Date" shall mean the first  business  day on which all
matters  reserved  against in respect of General Claims and Special Claims shall
have been finally  determined or settled.  If no matters are or remain  reserved
against on the First  Distribution  Date, the First Distribution Date shall also
be the Final  Distribution  Date. Omnicom shall give notice to the Escrow Agent,
with a copy to the Representative, five business days prior to the occurrence of
the First Distribution Date.

     3.2  Reimbursement  of Final  Claims for  Reimbursement  Before or On First
Distribution  Date. From the date of this Escrow  Agreement to and including the
First  Distribution  Date,  the Escrow Agent from time to time shall (subject to
Section 2.5) transfer and deliver to Omnicom (a) such number of shares of Common
Stock  forming  the  General  Escrow  Fund as shall  have a value  (computed  in
accordance  with  Section  3.7  hereof)  equal to the Final  General  Claims for
Reimbursement which have not previously been paid to Omnicom and (b) such number
of shares of Common  Stock  forming the  Additional  Escrow Fund as shall have a
value  (computed  in  accordance  with  Section 3.7  hereof)  equal to the Final
Special Claims for Reimbursement which have not previously been paid to Omnicom;
provided  however,  that in no event shall Omnicom receive any distribution from
the Escrow Fund prior to such time as Omnicom  releases and publishes  financial
results of the  combined  operations  of Omnicom and the  Surviving  Corporation
covering  a period of at least 30 days  after the  Effective  Time of the Merger
Agreement.  Omnicom shall promptly give notice to the Escrow Agent,  with a copy
to the Representative,  of the release and publishing of such financial results.
Omnicom and the Representative agree that it is the intent of this Section 3.2,

                                       7
<PAGE>

that no  distribution of Common Stock will be made to Omnicom out of the General
Escrow Fund or the  Special  Escrow  Fund prior to the First  Distribution  Date
unless the Representative shall have otherwise agreed in writing.

     3.3  Reservation  of  Amounts  at First  Distribution  Date.  On the  First
Distribution Date:

     (a) the Escrow Agent shall  reserve in the General  Escrow Fund such number
of shares of Common  Stock as shall have a value  (computed in  accordance  with
Section 3.7 hereof)  equal to the sum of (i) an amount in respect of the amounts
claimed in all General Claims Notices given pursuant to Section 2.1 hereof which
have not become Final Claims for Reimbursement,  but which are still asserted by
Omnicom and are then pending and  undecided  ("Pending  General  Claims") as set
forth in a  certificate  signed by Omnicom  and  delivered  to the Escrow  Agent
(provided, that if the Representative does not agree on such amount, the dispute
shall be submitted by the  Representative  to  arbitration  in  accordance  with
Section 2 hereof  and the  determination  of the  arbitrator  shall be final and
conclusive;   and  further  provided  that  pending  the  determination  of  the
arbitrator,  the amount to be reserved shall be the amount  certified in writing
to the  Escrow  Agent by  Omnicom);and  (ii) the  aggregate  amount of all Final
General Claims for Reimbursement not theretofore paid to Omnicom; and

     (b) the Escrow  Agent  shall  reserve the  Additional  Escrow Fund in full,
unless  all  Special  Losses  shall have  theretofore  become  Final  Claims for
Reimbursement,  in which case the Escrow Agent shall  reserve in the  Additional
Escrow  Fund  such  number  of  shares  of  Common  Stock as shall  have a value
(computed in accordance  with Section 3.7 hereof) equal to the aggregate  amount
of all Final Special Claims for Reimbursement not theretofore paid to Omnicom.

     3.4  Distribution  at First  Distribution  Date. On the First  Distribution

                                       8
<PAGE>

Date, the Escrow Agent shall deliver to Omnicom any shares reserved  pursuant to
3.3(a)(ii) or 3.3(b) with respect to Final Claims for  Reimbursement  above, and
shall deliver to the Shareholders in accordance with their respective  interests
that  portion of the  General  Escrow  Fund  equal to the  entire  amount of the
General Escrow Fund as originally deposited in accordance with Section 1 hereof,
less the sum of (a) all amounts  theretofore  delivered  from the General Escrow
Fund to Omnicom pursuant to Section 3.2 hereof and (b) the amount of the General
Escrow  Fund  reserved   pursuant  to  Section  3.3  hereof.  If  the  foregoing
calculation  results in a negative amount, no portion of the General Escrow Fund
shall be  delivered  to the  Shareholders  at the First  Distribution  Date.  In
addition,  if all Special Losses shall have theretofore  become Final Claims for
Reimbursement,  the Escrow Agent shall deliver to the Shareholders in accordance
with their respective interests that portion of the Additional Escrow Fund equal
to the entire amount of the  Additional  Escrow Fund as originally  deposited in
accordance  with Section 1 hereof,  less the sum of (c) all amounts  theretofore
delivered  from the  Additional  Escrow Fund to Omnicom  pursuant to Section 3.2
hereof and (d) the amount of the  Additional  Escrow Fund  reserved  pursuant to
Section 3.3 hereof.  If not all Special  Losses  shall have  theretofore  become
Final  Claims  for  Reimbursement  or if  the  foregoing  calculation  as to the
Additional  Escrow  Fund  results  in a  negative  amount,  no  portion  of  the
Additional  Escrow  Fund shall be  delivered  to the  Shareholders  at the First
Distribution Date.

     3.5 Distributions after the First Distribution Date

     (a) As to Pending General  Claims,  after the First  Distribution  Date, as
each Pending General Claim reserved for on the First  Distribution  Date becomes
(x) a Final Claim for Reimbursement,  or (y) is withdrawn by Omnicom,  or (z) is
determined  pursuant to a final decision in arbitration (as described in Section
2.3) not to be a proper Claim,  the Escrow Agent shall,  subject to Section 2.5,
deliver  (a) to Omnicom,  such number of shares of Common  Stock as shall have a
value  (computed in accordance with Section 3.7 hereof) equal to the Final Claim

                                       9
<PAGE>

for  Reimbursement  which results from the determination of such Pending General
Claim (and not  previously  paid to  Omnicom),  and (b) to the  Shareholders  in
accordance  with their  respective  interests,  such  number of shares of Common
Stock as shall have a value  (computed  in  accordance  with Section 3.7 hereof)
equal to the  amount,  if any,  of the excess of the  reserve  for such  Pending
General  Claim over the General  Final  Claim for  Reimbursement,  if any,  with
respect to such Pending General Claim; provided, however, that no delivery shall
be made  hereunder to the  Shareholders  unless the  aggregate  amount  reserved
(after giving  effect to such  delivery)  for all Pending  General  Claims is at
least equal to the aggregate  amount of such Pending  General  Claims;  provided
further,  that it is understood  that no Common Stock  retained  after the First
Distribution  Date in respect of Pending  General  Claims shall be available for
the settlement of any Special Claims.

     (b) As to  Special  Claims,  after the  First  Distribution  Date,  as each
Special Claim becomes (x) a Final Claim for Reimbursement or (y) is withdrawn by
Omnicom,  the Escrow  Agent  shall  from time to time  transfer  and  deliver to
Omnicom such number of shares of Common Stock forming the Additional Escrow Fund
as shall have a value  (computed in accordance with Section 3.7 hereof) equal to
such Final Special  Claim for  Reimbursement.  No delivery  shall be made to the
Shareholders  out of the  Additional  Escrow  Fund  unless and until all Special
Losses shall have become Final  Claims for  Reimbursement,  in which case and at
which time the Escrow Agent shall deliver (a) to Omnicom,  such number of shares
of Common Stock as shall have a value  (computed in accordance  with Section 3.7
hereof)  equal to the Final  Claims for  Reimbursement  relating to such Special
Losses (and not  previously  paid to Omnicom),  and (b) to the  Shareholders  in
accordance  with  their  respective  interests,  the  balance,  if  any,  of the
Additional Escrow Fund.

     3.6  Distribution  at Final  Distribution  Date. On the Final  Distribution
Date,  the Escrow Agent shall deliver to Omnicom such number of shares of Common
Stock as shall have a value  (computed in accordance with Section 3.7 hereof and
subject to Section 2.5 hereof) equal to the Final Claims for Reimbursement which

                                       10

<PAGE>

have not previously been paid to Omnicom,  and shall deliver to the Shareholders
in accordance with their respective interests the balance, if any, of the Escrow
Fund.

     3.7  Valuation.  For all purposes of this Escrow  Agreement,  each share of
Omnicom  Stock shall be valued at  $_____.(1)  If, at any time after the Closing
Date and prior to the date of any  distribution  of Common Stock,  Omnicom shall
effect a stock  dividend,  stock split or  combination  of the Common Stock,  or
other   recapitalization   affecting  the  Common  Stock,   or  shall  effect  a
distribution  (other than a  distribution  of cash  dividends  as  described  in
Section 4.1 hereof) with respect to the Common Stock,  or if Omnicom shall fix a
record date falling on or prior to the date of any  distribution of Common Stock
from the Escrow  Fund for any such stock  dividend,  stock  split,  combination,
recapitalization,  or  distribution  to  take  place  after  the  date  of  such
distribution, the foregoing valuation shall be adjusted appropriately by Omnicom
(but subject to arbitration in accordance with Section 2.3 above in the event of
a dispute).

     3.8 Fractional  Shares.  No fractional  shares of the Common Stock shall be
issued or  delivered  pursuant to any  provision  of this Escrow  Agreement.  In
making delivery of the Common Stock to Omnicom or the Representative, the Escrow
Agent  shall  round off any  fractional  share  resulting  from any  calculation
hereunder to the nearest whole share.

     3.9 Allocation. To the extent practicable all distributions made under this
Escrow  Agreement,  whether to Omnicom  or to the  Shareholders,  shall be taken
proportionately  from  the  Common  Stock  held in the  General  Escrow  Fund or
Additional  Escrow  Fund,  as the  case may be,  registered  in the name of each
Shareholder as his respective interest appears on Schedule A hereto.

     3.10 Distribution  Consent. Any other provision of this Escrow Agreement to

- ------------
(1) Insert the Market Value (as defined in the Merger Agreement)


                                       11
<PAGE> 

the contrary notwithstanding,  the Escrow Agent shall distribute the Escrow Fund
in such manner at such time or times as Omnicom and the  Representative  may, in
writing, jointly direct.

     3.11 Limitation to Escrow Fund; No Recourse.

     (a) If the aggregate of all Final General Claims For Reimbursement  exceeds
the value of the General  Escrow Fund  (valued in  accordance  with Section 3.7)
then the total balance of such Final General Claims For  Reimbursement  shall be
deemed to be  satisfied  on the release by the Escrow Agent to Omnicom of all of
the  Common  Stock  out of the  General  Escrow  Fund  in  accordance  with  the
provisions of this Agreement.

     (b) If the aggregate of all Final Special Claims For Reimbursement  exceeds
the value of the Additional  Escrow Fund (valued in accordance with Section 3.7)
then the total balance of such Final Special Claims For  Reimbursement  shall be
deemed to be  satisfied  on the release by the Escrow Agent to Omnicom of all of
the  Common  Stock out of the  Additional  Escrow  Fund in  accordance  with the
provisions of this Agreement.

     (c)  Anything   contained   in  this  Escrow   Agreement  to  the  contrary
notwithstanding, none of the Indemnified Parties shall have any recourse for any
Losses arising under Section 11.2 of the Merger Agreement against past,  present
or future directors,  officers or employees of the Company, the Shareholders, or
the  Representative,  nor shall any of such persons be personally liable for any
such  Losses,  it  being  expressly  understood  that  the  sole  remedy  of the
Indemnified  Parties  for  such  Losses  shall be  against  the  Escrow  Fund in
accordance  with this Escrow  Agreement.


4. DIVIDENDS AND OTHER DISTRIBUTIONS; VOTING RIGHTS

     4.1 Cash Dividends. All cash dividends in respect of the Common Stock still
then held in escrow, and all other  distributions in respect of the Common Stock
still then held in escrow that are  taxable  dividends  for  Federal  income tax
purposes (net of any taxes  required to be withheld from such cash  dividends or


                                       12
<PAGE>

other  distributions  by  Omnicom),  shall be paid  directly  to the  applicable
Shareholder and shall be the sole property of such  Shareholder,  and the Escrow
Agent  shall have no duty,  liability  or  obligation  whatsoever  with  respect
thereto.

     4.2 Distributions. Distributions of any kind, other than those described in
Section 4.1, shall be made by Omnicom,  if  practicable,  directly to the Escrow
Agent or, if made to any  Shareholder,  shall be delivered by such  Shareholder,
upon request from Omnicom,  to the Escrow Agent. All such distributions shall be
held in escrow  pursuant to the  provisions  of this Escrow  Agreement,  but the
Escrow Agent shall have no duty or  obligation  whatsoever  to require that such
distributions be delivered to it. Any delivery of the Common Stock to Omnicom or
the Representative  after any and all such distributions  shall be appropriately
adjusted  so that  the  distributee  will  be in the  same  position  as if such
distributee had been, on any record date for any such  distribution with respect
to the  Common  Stock,  the  holder of record of the number of shares of Omnicom
Stock distributable to him prior to any such  distributions.  Omnicom shall give
notice to the Escrow Agent, with a copy to the Representative, of the occurrence
of any such  distributions,  at least five business days prior to the occurrence
thereof.

     4.3 Voting.  Each  Shareholder  shall be  entitled  to exercise  all voting
rights with respect to the Common Stock  registered in his name and constituting
the Escrow Fund so long as such Common Stock continues to be held in escrow, and
the Escrow  Agent shall  deliver to such  Shareholder  any proxies  with respect
thereto which the Escrow Agent receives.

5.  SECURITY  INTEREST 

     (a) The  Shareholders  hereby grant to Omnicom a first  priority  perfected
security  interest  in  the  Escrow  Fund  to  secure  the  performance  of  the
indemnification  obligations under Section 11.2 of the Merger Agreement and this


                                       13
<PAGE>

Escrow  Agreement.  The Escrow Agreement shall  constitute a security  agreement
under applicable law.

     (b) The parties  agree that this security  interest  shall attach as of the
execution of this Escrow  Agreement.  The parties agree that, for the purpose of
perfecting  Omnicom's security interest in the above designated Escrow Fund held
by the Escrow Agent pursuant to this Escrow  Agreement,  Omnicom  designates the
Escrow  Agent to acquire and maintain  possession  of the Escrow Fund and act as
bailee for Omnicom with notice of Omnicom's  security  interest in said property
under the Uniform Commercial Code and that by possession of the Escrow Fund, the
Escrow Agent acknowledges that it holds the Escrow Fund for Omnicom for purposes
of perfecting the security  interest.  The  Representative  and the Escrow Agent
shall take all other actions requested by Omnicom to maintain the perfection and
priority of the security  interest in the Escrow Fund;  provided that the Escrow
Agent and the  Representatives  do not make any  representation or warranty with
regard to the  creation  or  perfection,  hereunder  or  otherwise,  of any such
security  interest,  and shall have no  responsibility  at any time to ascertain
whether or not any security interest exists.

     (c) Omnicom  shall  release the security  interest  herein  granted and the
security  interest shall be terminated to the extent of any  disbursement of the
Escrow  Fund  hereunder  by Escrow  Agent in  accordance  with the terms of this
Escrow Agreement.  Upon final  disbursement of the Escrow Fund to Omnicom or the
Shareholders,  Omnicom  shall do all acts and  things  reasonably  necessary  to
release and extinguish such security interest.  The parties hereto  specifically
agree that the grant of this security  interest pursuant to this Section 5 shall
not in any way modify the procedures the parties hereto must follow with respect
to the release of Common Stock from the Escrow Fund.

6. ESCROW AGENT'S DUTIES AND FEES

     6.1 Duties Limited. The Escrow Agent undertakes to perform only such duties
as are  expressly  set forth  herein,  and shall not be required to refer to the
Purchase Agreement in carrying out its duties hereunder.  The Escrow Agent shall



                                       14
<PAGE>

not be bound by, or have any responsibility with respect to, any other agreement
between  any  of  the   parties.   The  Escrow  Agent  shall  have  no  duty  or
responsibility  with regard to any loss resulting from the decline in the market
value of the Escrow Fund in  accordance  with the terms of this  Agreement.  The
Escrow Agent need not maintain any insurance with respect to the Escrow Fund.

     6.2 Reliance.  The Escrow Agent, acting (or refraining from acting) in good
faith, shall not be liable for any mistake of fact or error of judgment by it or
for any acts or omissions by it of any kind unless caused by gross negligence or
willful  misconduct,  and the Escrow  Agent may rely,  and shall be protected in
acting or  refraining  from  acting,  upon any written  notice,  instruction  or
request  furnished to it hereunder  and believed by it to be genuine and to have
been signed or presented by the proper party or parties;  provided  that, as set
forth below, modification of this Escrow Agreement shall be signed by all of the
parties  hereto.  The  Escrow  Agent is hereby  authorized  to  comply  with any
judicial  order or legal  process  which  stays,  enjoins,  directs or otherwise
affects  the  transfer  or  delivery of any part of the Escrow Fund to any party
hereto and shall incur no  liability  for any delay or loss which may occur as a
result of such  compliance.

     6.3 Good Faith. Each of Omnicom and the Surviving  Corporation,  severally,
hereby  agrees to  indemnify  the  Escrow  Agent  for,  and to hold it  harmless
against, 50% of any loss,  liability,  expense (including  reasonable attorneys'
fees and expenses),  third party claim and demand,  incurred by it without gross
negligence or bad faith on its part,  arising out of or in  connection  with its
entering into this Escrow Agreement and the carrying out of its duties hereunder
and in any event its liability  shall be limited to direct damages and shall not
include  special or  consequential  damages.  The Escrow  Agent may consult with
counsel of its own choice,  and shall have full and complete  authorization  and
protection for any action taken or suffered by it hereunder in good faith and in
accordance with the opinion of such counsel. The foregoing indemnification shall



                                       15
<PAGE>

survive the  resignation  of the Escrow Agent orthe  termination  of this Escrow
Agreement

     6.4 Successor Escrow Agents.  The Escrow Agent may resign and be discharged
from its duties or  obligations  hereunder at any time by giving 30 days' notice
in  writing  of  such  resignation  to  the  Representative  and  Omnicom.   The
Representative  and Omnicom,  together,  shall have the right to  terminate  the
appointment  of the Escrow Agent  hereunder by giving to it notice in writing of
such  termination  specifying  the date upon which such  termination  shall take
effect.  In either such event,  the  Representative  and Omnicom hereby agree to
promptly appoint a successor escrow agent; if the Representative and Omnicom are
unable to  appoint a  successor  escrow  agent  within 25 days  after the Escrow
Agent's  notice  of  resignation,  the  Escrow  Agent  may  petition  a court of
competent  jurisdiction  to appoint a successor.  The parties hereto agree that,
upon demand of such  successor  escrow  agent,  all  property in the Escrow Fund
shall be  turned  over and  delivered  to such  successor  escrow  agent,  which
thereupon shall become bound by all of the provisions hereof.

     6.5 Fees and Expenses. Omnicom and the Surviving Corporation each agrees to
pay to the Escrow Agent one-half of the fees determined in accordance  with, and
payable as specified in, the Schedule of Fees attached hereto as Attachment 1 as
compensation for the services to be rendered by it hereunder.

7. WAIVERS

     This Escrow  Agreement may be amended,  superseded or canceled,  and any of
the terms or  conditions  hereof  may be  waived,  only by a written  instrument
executed by the parties hereto or, in the case of a waiver, by the party waiving
compliance. The failure of any party at any time or times to require performance
of any  provision  hereof shall in no manner affect the right of such party at a
later time to enforce the same.  No waiver of any nature,  whether by conduct or
otherwise in any one or more instances, of any provision hereof, shall be deemed
to be, or construed as, a further or continuing  waiver of any such provision or


                                       16
<PAGE>

of another provision hereof.

8. NOTICES

     Any notice,  instructions or other  communication  required or which may be
given hereunder  (including  without  limitation the delivery of Common Stock to
the  Representative  out of the  Escrow  Fund)  shall be in  writing  and either
delivered personally or mailed by certified or registered mail, postage prepaid,
or sent by facsimile  transmission,  and shall be deemed given when so delivered
personally, mailed or sent by facsimile, as follows:

                If to Omnicom or the Surviving Corporation, to:

                Omnicom Group Inc.
                437 Madison Avenue
                New York, New York 10022
                Attention: Chief Executive Officer, Diversified Agency Services
                Fax No.: 212-415-3536

                if to the Representative, to:

                -------------------------------------

                -------------------------------------

                -------------------------------------

                and if to the Escrow Agent, to:

                The Chase Manhattan Bank, N.A.
                4 Chase Manhattan Center, 3rd floor
                Attention:  Escrow Department
                Fax No.:  718-242-3529


Any party may change the  persons  and  addresses  to which  notices,  payments,
instructions  or other  communications  are to be sent to such  party by  giving
written  notice of any such  change in the  manner  provided  herein  for giving
notice.  Notices sent by facsimile transmission shall be confirmed in writing by


                                       17
<PAGE>

registered or certified mail, return receipt requested.

9. GOVERNING LAW

     This Escrow  Agreement  shall be governed by, and  construed in  accordance
with, the laws of the State of Michigan  applicable to agreements made and to be
performed entirely within such State.

10. NO ASSIGNMENT

     This Escrow  Agreement  shall be binding upon,  and inure to the benefit of
the Representative (or his successor) and the successors and assigns of Omnicom,
and the Escrow Agent,  but no delegation of any obligations  provided for herein
may be made by any party hereto without the express written consent of the other
parties  hereto,  except for the  provisions  of Section  6.4 hereof  respecting
successor escrow agents.

11. JURY WAIVER

     All  parties to this  Agreement  waive any  rights  they may have to a jury
trial.

12. MISCELLANEOUS

     (a)  The  Surviving  Corporation  agrees  to  bear  up to  $100,000  of the
reasonable  fees and  disbursements  of any attorneys,  accountants or financial
advisors engaged by the  Representative in connection with his responding to and
making  determinations on behalf of the Shareholders in respect of the assertion
of any claims for indemnification by Omnicom,  and to assert claims on behalf of
the   Shareholders,   pursuant   to  the   terms  of  this   Escrow   Agreement.
Notwithstanding  the  foregoing,  Omnicom  shall have the right to satisfy  such
obligation by the release to the Representative of Common Stock from the General
Escrow Fund.  

     (b) The section headings contained in this Escrow Agreement are inserted

    
                                      18
<PAGE>
     
for  convenience  of  reference  only,  and  shall not  affect  the  meaning  or
interpretation of this Escrow Agreement.

     WITNESS the  execution of this Escrow  Agreement as of the date first above
written.


                                                   OMNICOM GROUP INC.


                                                   By:
                                                      --------------------------

                                                   ROSS ROY COMMUNICATIONS, INC.


                                                   By:
                                                      --------------------------


                                                      --------------------------
                                                            [The Representative]



                                                  THE CHASE MANHATTAN BANK, N.A.


                                                  By:
                                                     --------------------------


                                       19


              [Letterhead of McDonald & Company Securities. Inc.]



As of May 21, 1995

PERSONAL & CONFIDENTIAL

Board of Directors
Ross Roy Communications, Inc.
100 Bloomfield Hills Parkway
Bloomfield Hills, Michigan 48304

Ladies and Gentlemen:

You have  requested  our opinion as to the fairness,  from a financial  point of
view as of the date hereof,  to the holders of the outstanding  shares of common
stock,  par value $            per  share of Ross Roy  Communications,  Inc.,  a
Michigan  corporation ("Ross Roy" or the "Company"),  of the consideration to be
paid by Omnicom Group, Inc., a New York corporation ("Omnicom"),  to the holders
of Ross Roy common stock in connection  with the proposed  merger (the "Merger")
of Ross Roy with and into Omnicom  pursuant to the  Agreement and Plan of Merger
dated                     , 1995 between Ross Roy and Omnicom (the "Agreement").

You have advised us that under the terms of the Agreement,  upon consummation of
the Merger (the "Closing"), each issued and outstanding share of Ross Roy common
stock  will be  converted  into the right to receive            shares of common
stock, $          par value, of Omnicom, subject to adjustment in certain events
as provided in the Agreement (the "Conversion Price").

McDonald & Company Securities,  Inc., as part of its investment banking business
is  customarily  engaged in the  valuation of business and their  securities  in
connection with mergers and acquisitions, negotiated underwritings,  competitive
biddings,  secondary  distributions of listed and unlisted  securities,  private
placements and valuations for estate, corporate and other purposes.

In connection with rendering this opinion, we have reviewed and analyzed,  among
other  things,  the  following:  (i) the  Agreement,  including the exhibits and
schedules thereto;  (ii) certain information  concerning the Company,  including
its audited financial statements for fiscal years ending December 31, 1992, 1993
and 1994;  (iii)  certain other  internal  information,  primarily  financial in
nature  concerning the business and operations of the Company furnished to us by

<PAGE>

the Company for  purposes  of our  analysis;  (iv)  certain  publicly  available
information  regarding  Omnicom,  including  the  Annual  Report on Form 10-K of
Omnicom,  for the year ended December 31, 1994 and the Quarterly  Report on Form
10-Q of Omnicom  for the  quarter  ended March 31,  1995;  (v) certain  publicly
available information with respect to certain other companies that we believe to
be comparable  to the Company or to Omnicom and the trading  markets for certain
of such  other  companies'  securities;  and  (vi)  certain  publicly  available
information  concerning the nature and terms of certain other  transactions that
we consider relevant to our inquiry.  We have also met with certain officers and
employees of the Company to discuss the business and prospects of the Company as
well as other matters that we believe to be relevant to our inquiry.

In our review and  analysis  and in arriving at our opinion we have  assumed and
relied upon the accuracy and  completeness  of all of the financial  information
and other  information  provided us or publicly  available  and have assumed and
relied  upon the  representations  and  warranties  of the  Company  and Omnicom
contained  in the  Agreement.  We  have  not  been  engaged  to,  and  have  not
independently  attempted  to, verify any such  information.  We have also relied
upon the  management  of the Company and  Omnicom as to the  reasonableness  and
acheivability  of the financial and operating  projections  (and the assumptions
and bases  therefor)  associated  with the Merger  provided to us and, with your
consent,  we have  assumed  that such  projections,  reflect the best  currently
available  estimates and judgments of management.  We express no view as to such
projections or the assumptions on which they are based. In addition, we have not
conducted a physical inspection or appraisal of any of the assets, properties or
facilities of either the Company or Omnicom nor have we been  furnished with any
such  evaluation or appraisal.  We have also assumed that the  conditions to the
Merger as set forth in the Agreement  would be  consummated on a timely basis in
the manner contemplated by the Agreement.

It should be noted that this opinion is based on economic and market  conditions
and other  circumstances  existing on, and information made available as of, the
date hereof and does not address any matters subsequent to such date,  including
the value of the Omnicom  Common  Stock at the time of  issuance  thereof to the
holders of the  Company's  common  stock.  In  addition,  our opinion is, in any
event,  limited to the fairness,  from a financial point of view, as of the date
hereof,  of the Conversion  Price to be received by the holders of the Company's
common  stock  pursuant  to the  Merger  and  does  not  address  the  Company's
underlying  business  decision to effect the  Merger,  or any other terms of the
Merger (including,  without  limitation,  the covenants and agreements set forth
in, or contemplated  by, the Agreement and the related  effects,  if any, on the
value of the Conversion  Price to be received in connection with the Merger,  as
to which we express no opinion).

We have acted as financial  advisor to the Company in connection with the Merger
and will receive from the Company a fee for our services upon  completion of the
Merger, and the Company has agreed to indemnify us under certain circumstances.

It is understood that this opinion was prepared solely for the  confidential use
by the Board of Directors of the Company and may not be  disclosed,  summarized,
excerpted from or otherwise publicly referred to without our prior consent.


                                       2
<PAGE>

Based upon and  subject to the  foregoing  in such other  matters as we consider
relevant,  it is our opinion that as of the date hereof, the Conversion Price to
be received by the holders of the Company common stock is fair to the holders of
the Company common stock, from a financial point of view.

Very truly yours,




McDONALD & COMPANY SECURITIES, INC.

                                                                    Exhibit 23.1

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent  public  accountants,  we hereby consent to the  incorporation by
reference in this Registration  Statement of our report, dated February 20, 1995
included in the Omnicom  Group Inc.  Form 10-K for the year ended  December  31,
1994 and to all references to our Firm included in this Registration Statement.


                                                        ARTHUR ANDERSEN LLP

New York, New York
June 16, 1995




                                                                    Exhibit 23.2


                         INDEPENDENT AUDITORS' CONSENT

We consent to the use in this  Registration  Statement of Omnicom  Group Inc. on
Form S-4 of our report dated March 9, 1995,  appearing in the Prospectus,  which
is part of this Registration Statement.

We also  consent to the  reference to us under the heading  "Selected  Financial
Data" and "Experts" in such Prospectus.

/s/ DELOITTE & TOUCHE LLP
DELOITTE & TOUCHE LLP
Detroit, Michigan

June 12, 1995



                       INDEPENDENT TAX ADVISORS' CONSENT

     We hereby  consent to the  summarization  of our tax  opinion as it appears
under  the  "Certain  Income  Tax  Consequences"  section  of  the  Registration
Statement  of Omnicom  Group Inc. on Form S-4 as filed with the  Securities  and
Exchange  Commission  on June 19, 1995. We also consent to the filing of our tax
opinion as an exhibit to the  Registration  Statement  of Omnicom  Group Inc. on
Form S-4 as filed with the Securities and Exchange Commission on June 19, 1995.

/s/ DELOITTE & TOUCHE LLP
DELOITTE & TOUCHE LLP
Detroit, Michigan

June 19, 1995



              [LETTERHEAD OF McDONALD & COMPANY SECURITIES, INC.]

                                    CONSENT

     McDonald & Company Securities, Inc. hereby consents to the summarization of
its fairness opinion to Ross Roy Communications, Inc., dated as of May 21, 1995,
as such  summarization  appears  in the  Registration  Statement  on Form S-4 of
Omnicom Group Inc. as filed with the Securities and Exchange  Commission on June
19,  1995.  McDonald & Company  Securities  Inc.  also hereby  consents to allow
fairness opinion to be filed as an exhibit to the Registration Statement on Form
S-4.

                                        /s/ MCDONALD & COMPANY SECURITIES, INC.
                                            MCDONALD & COMPANY SECURITIES, INC.

Dated: June 19, 1995



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