AON CORP
10-K, 1997-03-26
ACCIDENT & HEALTH INSURANCE
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    FORM 10-K


(Mark One)
   _
  |X|        ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
   -             SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED]
                   For the fiscal year ended December 31, 1996

                                       OR
   _
  | |       TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
   -            SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED]
                         Commission File Number: 1-7933

                                 Aon CORPORATION
             (Exact Name of Registrant as Specified in its Charter)

                                _______________


           DELAWARE
   (State or Other Jurisdiction of                       36-3051915
    Incorporation or Organization)                    (I.R.S. Employer
          123 NORTH WACKER DRIVE,                    Identification No.)
           CHICAGO, ILLINOIS                                60606
(Address of Principal Executive Offices)                  (Zip Code)
             (312) 701-3000
          (Telephone Number)

                                _______________

           Securities registered pursuant to Section 12(b) of the Act:

                                                        Name of Each Exchange
          Title of Each Class                           on Which Registered
          -------------------                           -------------------
     Common Stock, $1 par value                         New York Stock Exchange*
8% Cumulative Perpetual Preferred Stock                 New York Stock Exchange
         6.875% Notes Due 1999                          New York Stock Exchange
          7.40% Notes Due 2002                          New York Stock Exchange

        Securities registered pursuant to Section 12(g) of the Act: NONE
*The Common  Stock of the  Registrant  is also listed for trading on the Chicago
          Stock Exchange and The International Stock Exchange London.

                                _______________

Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  Registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. YES |X| NO |_|

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of Registrant's  knowledge,  in definitive proxy or information statements,
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. |X|

Aggregate  market  value  of the  voting  stock  held by  non-affiliates  of the
Registrant as of February 26, 1997 was $5,717,654,603.

Number of shares of $1.00 par value Common Stock  outstanding as of February 26,
1997: 110,945,346.

         Documents From Which Information Is Incorporated By Reference:
        Annual Report to Stockholders of the Registrant for the Year 1996
           (Parts I, II and IV) Notice of Annual Meeting of Holders of
                 Common Stock and Series C Cumulative Preferred
                      Stock and Proxy Statement for Annual
                      Meeting of Stockholders on April 18,
                        1997 of the Registrant (Part III)

<PAGE>
                                     PART I


ITEM 1.  BUSINESS.

     The  Registrant is a holding  company  comprised of two distinct  segments:
insurance  brokerage  and  consulting   services  and  insurance   underwriting.
Incorporated in 1979, it is the parent corporation of long-established  and more
recently formed companies.

     Aon Group,  Inc., its subsidiaries and certain other indirect  subsidiaries
of the Registrant ("Aon Group"): Aon Risk Services Companies,  Inc.;Aon Holdings
bv; Aon Consulting Worldwide, Inc.; Aon Specialty Group, Inc.; Aon Re Worldwide,
Inc.; and Nicholson Jenner Leslie Group Limited provide reinsurance intermediary
services,  benefits consulting and commercial insurance brokerage services.  Aon
Group revenues grew  significantly in fiscal 1997 and 1996,  respectively,  when
the Registrant  acquired  Alexander & Alexander  Services Inc. in early 1997 and
Bain Hogg Group plc in October 1996.

     Combined  Insurance  Company of  America  ("Combined  Insurance")  and Ryan
Insurance  Group,  Inc.  engage in the marketing of life and accident and health
insurance products.  Ryan Insurance Group, Inc.; Virginia Surety Company,  Inc.;
and London  General  Insurance  Company  Limited  offer  extended  warranty  and
specialty insurance products.

     In second quarter 1996,  the Registrant and Combined  Insurance sold two of
Combined  Insurance's  insurance  subsidiaries,  Union  Fidelity Life  Insurance
Company ("UFLIC") and The Life Insurance Company of Virginia ("LOV").

     In second quarter 1996, Ryan Insurance Group,  Inc. sold its North American
auto credit underwriting and distribution businesses, including the distribution
of auto extended warranty products.

     The  Registrant  hereby  incorporates  by reference pages 6 through 15 of
the Annual  Report to  Stockholders  of the Registrant for the Year 1996
("Annual Report").


Competition and Industry Position


(1) INSURANCE BROKERAGE AND CONSULTING SERVICES

     Aon Group, Inc. ("Aon Group"); Aon Risk Services Companies, Inc. ("Aon Risk
Services Companies");  Alexander & Alexander Services Inc. ("A&A"); Aon Holdings
bv ("Aon  Holdings");  Aon Specialty Group,  Inc. ("Aon Specialty  Group");  Aon
Consulting Worldwide, Inc. ("Aon Consulting"); Aon Re Worldwide,Inc. ("Aon Re");
Nicholson Jenner Leslie Group Limited ("Nicholson Jenner Leslie"); and Bain Hogg
Group plc ("Bain Hogg").

     Aon Group,is the holding company for the Registrant's  commercial brokerage
and consulting  operation.  Aon Group is the fastest  growing  global  insurance
brokerage and  consulting  services firm in the world.  The Aon Group  companies
have more than 400 owned offices around the world in approximately 60 countries.
In 1996,  Aon Group  employed  approximately  20,000  professionals  and support
personnel to serve the diverse needs of clients.

     Aon Risk Services  Companies'  (formerly Rollins Hudig Hall Co.), A&A's and
Bain Hogg's  subsidiaries  operate in a highly competitive  industry and compete
with a large number of retail  insurance  brokerage  and agency firms as well as
individual brokers and agents and direct writers of insurance coverage. Aon Risk

                                     - 2 -
<PAGE>


Services  Companies'   subsidiaries  offer  comprehensive  services  to  clients
including  insurance   placement,   specialized   brokerage  services,   program
development and administration,  premium financing services, risk management and
loss-control  consulting.  It has also developed certain  specialist niche areas
such  as  marine,   aviation,   directors  and  officers  liability,   financial
institutions,  construction,  energy,  media and entertainment.

     Aon  Holdings   (formerly  Rollins  Hudig  Hall  Holdings  bv)  traces  its
commercial  broking  roots  to  1688  and  is  one of  the  premier  brokers  in
Continental Europe with  approximately  3,500 employees and subsidiaries in more
than 30 countries.

     Subsidiaries  of Aon Risk Services  Companies,  Aon Holdings,  A&A and Bain
Hogg operate  through owned  offices in North America and Europe,  as well as in
South America,  Africa,  Australia and Asia. In 1996, Aon Holdings  subsidiaries
opened offices in Australia,  Germany, France, Portugal, The Netherlands,  South
Africa,  Singapore, New Zealand, Norway and Finland. The acquisitions of A&A and
Bain Hogg will significantly augment the Registrant's presence in Latin America,
Asia, Africa and Australia.

     Aon Specialty Group addresses the highly specialized  product  development,
consulting and administrative needs of professional groups,  service businesses,
governments,   health-care  providers  and  commercial  organizations.  It  also
provides  underwriting  management skills, claims and risk management expertise,
and third-party  administration  services to insurance companies.  Aon Specialty
Group operating  subsidiaries market and broker both the primary and reinsurance
risks of these programs.  For individuals and busineses,  ASG provides  affinity
products for professional liability, life and personal lines.

     Subsidiaries of Aon Consulting (formerly Godwins  International,  Inc.) and
the European  benefits  operations  of Aon Holdings  serve the employee  benefit
needs of clients around the world.  Aon Consulting is one of the world's largest
integrated human resources consulting organizations.  Focusing on the increasing
demand for outsourcing  solutions,  Aon Consulting targets emerging  businesses,
IPO's,  recent mergers or acquisitions and corporations  that are  reengineering
staff functions.

     In the United  States,  the  benefits  environment  continues  to change as
companies  look for ways to manage their  benefits  costs while  increasing  the
choices offered to their  employees.  Aon Consulting,  with its expertise in all
areas of benefits and  compensation,  and its access to the  Registrant's  other
subsidiaries,   is   well-positioned   to  serve  this  market.  Aon  Consulting
subsidiaries offer services to clients including  organizational analysis and HR
strategic  planning,  recruitment and selection,  benefits design and management
training and development. Benefits issues in foreign countries are becoming more
complicated, and Aon Holdings and Aon Consulting anticipate increased demand for
their services in these markets.

     Aon's reinsurance brokerage activities are organized under Aon Re. With the
acquisitions  of A&A and Bain Hogg, Aon Re is a global leader in the reinsurance
and specialist  brokerage  industry.  Aon Re serves the alternative  market with
reinsurance  placement,  alternative risk services,  captive management services
and catastrophe information forecasting.

     Nicholson  Jenner  Leslie is a  London-based  Lloyd's  broker  that  places
wholesale and reinsurance  business in the London and international  markets and
serves  the needs of a wide range of clients  around  the world.  A majority  of
Nicholson Jenner Leslie's revenue is derived from sources unaffiliated with Aon.



                                     - 3 -
<PAGE>


(2) INSURANCE UNDERWRITING


     Combined Insurance Company of America ("Combined Insurance"); Combined Life
Insurance Company of New York ("CLICNY");Virginia  Surety Company, Inc. ("VSC");
London General Insurance  Company Limited ("London  General") and Aon Warranty
Group,Inc.("Aon Warranty").

     In April 1996,  the Registrant and Combined  Insurance  Combined  Insurance
completed  the sales of Combined  Insurance's  direct  response  life and health
subsidiary,  Union  Fidelity  Life  Insurance  Company  ("UFLIC"),  and Combined
Insurance's  capital  accumulation  insurance  subsidiary,  The  Life  Insurance
Company of Virginia ("LOV").

     The Registrant's insurance  underwriting  subsidiaries are part of a highly
competitive industry that serves individual consumers in North America,  Europe,
Latin  America and the Pacific  by  providing  accident  and health  coverage,
traditional life insurance and, extended warranties through global  distribution
networks  that  are  directly  owned  by the  Registrant's subsidiaries.

     The accident and health  distribution  network  encompasses  primarily  the
agents  of  Combined  Insurance.  With more  than  five  million  policyholders,
Combined  Insurance has more  individual  accident and health  policies in force
than any other United  States  company.  Combined  Insurance,  the  Registrant's
principal  accident  and health  insurer,  has a direct  sales  force of several
thousand  career  agents  calling on  individuals  to sell a broad  spectrum  of
accident and health  products.  It is one of the few companies  with agents that
call on  customers  every six months to renew  coverage  and to sell  additional
coverage.   Combined   Insurance  offers  a  wide  range  of  accident-only  and
sickness-only insurance products,  including short-term disability,  cancer aid,
Medicare  supplement  and  disability  income  coverage.   Combined  Insurance's
products  are  primarily  fixed  indemnity  obligations,  thereby not subject to
escalating medical costs.  Combined  Insurance offers a simplified  accident and
sickness long-term disability policy. In addition,  to its traditional business,
Combined  Insurance  is  expanding  its  product  distribution  through  payroll
deduction, worksite marketing programs.

     Combined  Insurance and its wholly-owned  subsidiary CLICNY (which operates
exclusively in the State of New York) market whole life products  through direct
sales career agents in the United States.  Combined  Insurance  ranked among the
top 100 life  insurance  companies  in the United  States in terms of total life
premiums in 1995. Life insurance  business is conducted by the Registrant's life
insurance  subsidiaries  in the  United  States,  Canada, Ireland, Germany, and
New Zealand.

     The  Registrant's  extended  warranty  and  specialty  insurance  business,
conducted by subsidiaries VSC in North America and London General in Europe,  is
composed  primarily  of  extended  warranty  insurance  products,   professional
liability  insurance  coverages,  workers'  compensation and specialty financial
institution coverages.  VSC and London General continue to be one of the world's
largest  underwriters of consumer extended  warranties.  The automobile warranty
products are sold in the United States,  Canada,  the United  Kingdom,  Ireland,
France,  The Netherlands,  Belgium,  Spain and Japan. Aon Warranty Group handles
the  administration  of  certain  extended  warranty  products  on  automobiles,
electronic goods,  personal computers and appliances.  It serves  manufacturers,
distributors  and retailers of major  worldwide  consumer  product and financial
institutions, associations and affinity groups in North America and Europe.

     In second  quarter 1996,  Aon completed the sale of its North American auto
credit underwriting and distribution  operations,  including the distribution of
auto  extended  warranties  throughout  North  America.  The  extended  warranty
products will continue to be underwritten by VSC.


                                     - 4 -
<PAGE>




(3) DISCONTINUED OPERATIONS

     The Life  Insurance  Company of Virginia  ("LOV") and Union  Fidelity  Life
Insurance Company ("UFLIC").

     In April 1996, the Registrant and Combined Insurance completed the sales of
Combined  Insurance's  subsidiaries,  LOV and UFLIC. The business written by LOV
primarily included capital  accumulation  products and some other life products.
UFLIC operated in the United States in the highly  competitive  direct  response
life and health marketing segment of the industry.

LICENSING AND REGULATION

     Insurance   companies  must  comply  with  laws  and   regulations  of  the
jurisdictions in which they do business. These laws and regulations are designed
to ensure  financial  solvency of  insurance  companies  and to require fair and
adequate  service and  treatment  for  policyholders.  They are  enforced by the
states in the United States, by industry  self-regulating agencies in the United
Kingdom,  and by various  regulatory  agencies  in other  countries  through the
granting  and  revoking  of  licenses  to  do  business,  licensing  of  agents,
monitoring  of  trade  practices,  policy  form  approval,  minimum  loss  ratio
requirements,  limits on premium and commission  rates,  and minimum reserve and
capital requirements. Compliance is monitored by the state insurance departments
through periodic regulatory reporting procedures and periodic examinations.  The
quarterly and annual  financial  reports to the  regulators in the United States
utilize  accounting  principles which are different from the generally  accepted
accounting  principles used in stockholders'  reports.  The statutory accounting
principles,   in  keeping   with  the  intent  to  assure  the   protection   of
policyholders,  are based, in general,  on a liquidation concept while generally
accepted accounting principles are based on a going-concern concept.

     The state insurance  regulators are members of the National  Association of
Insurance  Commissioners  ("NAIC"). This Association seeks to promote uniformity
of, and to enhance the state  regulation  of,  insurance.  Both the NAIC and the
individual states continue to focus on the solvency of insurance companies. This
focus is reflected in additional regulatory oversight by the states and emphasis
on the  enactment  or  adoption  of a series of NAIC model laws and  regulations
designed to promote solvency. The increase in any solvency-related  oversight by
the  states is not  expected  to have any  significant  impact on the  insurance
business of the Registrant.

     Several  years ago,  the NAIC  developed a formula for  analyzing  insurers
called  risk-based  capital  ("RBC").  RBC is  intended to  establish  "minimum"
capital  threshold  levels  that  vary  with  the  size  and mix of a  company's
business.  It is designed to identify companies with the capital levels that may
require  regulatory  attention.  RBC does not have any significant impact on the
insurance business of the Registrant.

     Insurance  companies are generally not subject to any federal regulation of
their  insurance  business  because of the  existence  of a federal law commonly
known as the  McCarran-Ferguson  Act.  McCarran-Ferguson  provides the insurance
industry with immunity from certain  aspects of the federal  anti-trust  law and
exempts the business of insurance from federal  regulation.  In the past several
years  there have been a number of  recommendations  that  McCarran-Ferguson  be
repealed entirely or modified to remove the industry's  anti-trust exemption and
subject it to federal regulation.  If  McCarran-Ferguson  were to be repealed or
modified,  state regulation of the insurance business would continue. The result
could be an additional layer of federal regulation.  The Registrant expects that
any  repeal  of   anti-trust   exemptions   available  to  insurers   under  the
McCarran-Ferguson Act would not have a significant impact on its operations.


                                     - 5 -
<PAGE>


     The state  insurance  holding  company  laws  require  prior  notice to and
approval of the domestic state insurance department of intracorporate  transfers
of assets  within  the  holding  company  structure,  including  the  payment of
dividends  by  insurance  company  subsidiaries.  In  addition, the premium
finance  loans by  Cananwill,  Inc., an indirect wholly-owned  subsidiary of the
Registrant, are subject to one or more of  truth-in-lending  and credit
regulations,  insurance  premium finance acts, retail installment sales acts and
other similar consumer protection legislation. Failure to comply  with such laws
or  regulations  can  result in the  temporary suspension or permanent  loss of
the right to engage in business in a particular jurisdiction as well as other
penalties.

     Regulatory authorities in the states in which the operating subsidiaries of
Aon Group conduct business may require individual or company licensing to act as
brokers,   agents,   third  party   administrators,   managing  general  agents,
reinsurance  intermediaries  or  adjusters.  Under  the  laws  of  most  states,
regulatory   authorities  have  relatively  broad  discretion  with  respect  to
granting,  renewing  and  revoking  brokers'  and  agents'  licenses to transact
business in the state.  The manner of  operating in  particular  states may vary
according to the  licensing  requirements  of the  particular  state,  which may
require,  among other  things,  that a firm operate in the state through a local
corporation.  In a few states,  licenses are issued only to individual residents
or locally-owned  business entities.  In such cases, Aon Group subsidiaries have
arrangements with residents or business entities licensed to act in the state.

In 1996 the federal Health Care Insurance  Portability and Accountability Act of
1996 was enacted.  The Act  requires the states to take action to implement  the
requirements  of  the  Act  or to  become  subject  to  federal  oversight.  The
Registrant  does not  believe  tht the  state  action  required  by the Act will
materially  affect the business of the Registrant's  subsidiaries.  In addition,
federal laws mandating specific prectices by medical insurers have recently been
enacted from which,  because of the nature of the  business of the  Registrant's
subsidiaries, the Registrant's subsidiaries are exempt. Numerous states have had
legislation introduced to reform the health care system and such legislation has
passed in several states.  While it is impossible to forecast the precise nature
of future  state health care  changes,  the  Registrant  does not expect a major
impact  on its  operations  because  of the  supplemental  nature of most of the
policies  issued by its  insurance  subsidiaries  and because the  coverages are
primarily purchased to provide, on a fixed-indemnity  basis,  protection against
loss-of-time or disability benefits.  If health care reform does not provide for
a significant  role for insurance  companies  currently  writing primary medical
coverage,  the Registrant  expects that some of those  companies  would increase
their  participation in other segments of the insurance  underwriting  business,
perhaps heightening the competition with Combined Insurance.  Combined Insurance
and its subsidiaries currently operate successfully in several foreign countries
which have national health plans in effect.


Clientele

     No significant  part of the Registrant's or its  subsidiaries'  business is
dependent upon a single client or on a few clients, the loss of any one of which
would have a material adverse effect on the Registrant.


Employees

     The Registrant's subsidiaries had approximately 28,000 employees at the end
of 1996 of whom  approximately  three-fourths  are salaried and hourly employees
and the  remaining  one-fourth  are  sales  representatives  who  are  generally
compensated wholly or primarily by commission.


                                     - 6 -
<PAGE>



ITEM 2.  PROPERTIES.

     The  Registrant's  subsidiaries  own and occupy  office  buildings in eight
states and certain  foreign  countries,  and lease office space elsewhere in the
United  States and in various  foreign  cities.  Loss of the use of any owned or
leased property, while potentially disruptive,  would have no material impact on
the Registrant.


ITEM 3.  LEGAL PROCEEDINGS.

     The  Registrant  hereby  incorporates  by reference note 12 of the Notes to
Consolidated Financial Statements on page 40 of the Annual Report.



ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

     None.


Executive Officers of the Registrant

     Executive  officers of the Registrant are regularly elected by its Board of
Directors at the annual meeting of the Board which is held following each annual
meeting of the  stockholders  of the Registrant.  The executive  officers of the
Registrant  were elected to their  current  positions on April 19, 1996 to serve
until the meeting of the Board  following the annual meeting of  stockholders on
April 18, 1997. Ages shown are as of December 31, 1996.

     For information  concerning  certain executive  officers of the Registrant,
see item 10 below.  As of March 26,  1997, the following  individuals are also
executive officers of the Registrant as defined in Rule 16a-1(f):

                                     - 7 -
<PAGE>
                             Has Continuously
                               Served as an
                                 Officer
                             of Registrant or
 Name, Age, and                  One or
 Current Office                More of its
  or Principal                Subsidiaries      Business Experience
   Position                       Since         Past 5 years
- --------------            --------------------  ----------------
Harvey N. Medvin, 60              1972          Mr. Medvin became Vice President
Executive Vice President,                       and Chief Financial Officer of
Chief Financial Officer                         the Registrant in 1982 and was
and Treasurer                                   elected to his current position
                                                in 1987.  He also serves as a
                                                Director or Officer of certain
                                                of the Registrant's
                                                subsidiaries.


Daniel T. Cox, 50                 1986          Mr. Cox was elected to his
Executive Vice President                        current position in 1991 and,
                                                prior to their sale, had served
                                                as Chairman and Chief Executive
                                                Officer  of LOV since 1988 and
                                                of Union Fidelity since 1989.
                                                Mr.  Cox had  headed  the
                                                Registrant's benefits consulting
                                                operation  since  1987.  He also
                                                serves as Director or Officer of
                                                certain of the Registrant's
                                                subsidiaries.

Michael A. Conway, 49             1990          Mr. Conway was Vice President of
Senior Vice President and                       Combined Insurance from 1980 to
Senior Investment Officer                       1984.  Following other
                                                employment,  Mr. Conway rejoined
                                                the Registrant in 1990 as Senior
                                                Vice President of Combined
                                                Insurance and was elected to his
                                                current position in 1991.  He
                                                also serves as Director or
                                                Officer of certain of the
                                                Registrant's subsidiaries.

Michael D. O'Halleran, 46         1987          Mr. O'Halleran was appointed
President and Chief Operating                   President and Chief Operating
Officer of Aon Group, Inc.                      Officer of Aon Group, Inc.in
                                                1995.  Prior thereto, since
                                                joining the Registrant in
                                                1987, he held a variety of
                                                senior positions in the
                                                Registrant's insurance and
                                                reinsurance brokerage business.


ITEM 5. MARKET FOR THE  REGISTRANT'S  COMMON STOCK AND RELATED  SECURITY  HOLDER
        MATTERS.

     The Registrant's $1.00 par value common shares ("Common Shares") are traded
on the New York,  Chicago and London  stock  exchanges.  The  Registrant  hereby
incorporates  by reference the "Dividends paid per share" and "Price range" data
on page 43 of the Annual Report.

     The  Registrant  had  approximately  12,900 holders of record of its Common
Shares as of February 26, 1997.

     The  Registrant  hereby  incorporates  by reference  note 8 of the Notes to
Consolidated Financial Statements on pages 34 and 35 of the Annual Report.

ITEM 6.  SELECTED FINANCIAL DATA.

     The Registrant  hereby  incorporates  by reference the "Selected  Financial
Data" table on page 42 of the Annual Report.


                                     - 8 -
<PAGE>

ITEM 7. MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS.

     The Registrant hereby incorporates by reference  "Management's  Analysis of
Operating Results and Financial  Condition" on pages 17 through 23 of the Annual
Report.

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

     The Registrant hereby  incorporates by reference the following  statements,
notes and data from the Annual Report.
                                                                      Page(s)
                                                                      -------
     Consolidated Financial Statements ...........................      24-28
     Notes to Consolidated Financial Statements...................      29-40
     Report of Ernst & Young LLP, Independent Auditors............         41
     Quarterly Financial Data   ..................................         43

ITEM 9. CHANGES IN AND DISAGREEMENT WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL
        DISCLOSURE.

     Not Applicable.

                                     - 9 -
<PAGE>
                                    PART III

ITEM 10.   DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.

     The Registrant hereby  incorporates by reference the information on pages 3
and 7 of the Notice of Annual  Meeting  of Holders of Common  Stock and Series C
Preferred  Stock and Proxy  Statement For Annual Meeting of the  Stockholders on
April 18, 1997, of the Registrant ("Proxy  Statement")  concerning the following
Directors of the Registrant, each of whom also serves as an executive officer of
the  Registrant  as defined  in Rule  16a-1(f):  Patrick G. Ryan and  Raymond I.
Skilling. Information concerning additional executive officers of the Registrant
is  contained  in Part I  hereof,  pursuant  to  General  Instruction  G(3)  and
Instruction 3 to Item 401(b) of Regulation S-K.

ITEM 11.   EXECUTIVE COMPENSATION.

     The Registrant  hereby  incorporates by reference the information under the
headings "Executive  Compensation,"  "Aggregated Option Exercises in Last Fiscal
Year and Fiscal Year-End Option Values," "Option Grants in 1996 Fiscal Year" and
"Pension Plan Table" on pages 12 through 15 of the Proxy Statement.

ITEM 12.   SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.

     The Registrant  hereby  incorporates  by reference the share ownership data
contained on pages 2, 8 and 9 of the Proxy Statement.

ITEM 13.   CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.

     The Registrant  hereby  incorporates by reference the information under the
heading "Transactions With Management" on page 20 of the Proxy Statement.

                                     - 10 -
<PAGE>



                                     PART IV

ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K.

(a)(1) and (2). The  Registrant  has  incorporated  by reference from the Annual
Report  (see Item 8) the  following  consolidated  financial  statements  of the
Registrant and subsidiaries:

                                                                        Annual
                                                                        Report
                                                                        Page(s)
                                                                        -------

Consolidated Statements of Financial Position--
  As of December 31, 1996 and 1995                                      24-25

Consolidated Statements of Income --
  Years Ended December 31, 1996, 1995 and 1994                          26

Consolidated Statements of Stockholders' Equity --
 Years Ended December 31, 1996, 1995 and 1994                           27

Consolidated Statements of Cash Flows -- Years
  Ended December 31, 1996, 1995 and 1994                                28

Notes to Consolidated Financial Statements                              29-40

Report of Ernst & Young LLP, Independent Auditors                       41

Financial  statement  schedules of the Registrant and consolidated  subsidiaries
not included in the Annual Report but filed herewith:
     Consolidated Financial Statement Schedules --

________________________________________________________________________________

                                                                        Schedule
                                                                        --------
     Summary of Investments -- Other than Investments
       in Related Parties                                                   I
     Parent Company Condensed Financial Statements                         II
     Supplementary Insurance Information                                  III
     Reinsurance                                                           IV
     Valuation and Qualifying Accounts                                      V
     Schedule VI is omitted as it is immaterial

(a)(3).   Exhibits

     (a) Second  Restated  Certificate  of  Incorporation  of the  Registrant--
         incorporated  by reference to Exhibit 3(a) to the  Registrant's  Annual
         Report to the Securities  and Exchange  Commission on Form 10-K for the
         year ended December 31, 1991 (the "1991 Form 10-K").

     (b) Certificate of Amendment of the Registrant's Second Restated
         Certificate of Incorporation  --  incorporated  by reference to Exhibit
         3 to the Registrant's Quarterly Report on Form 10-Q for the quarter
         ended March 31, 1994 (the "First Quarter 1994 Form 10-Q").

     (c) Bylaws of the Registrant -- incorporated by reference to Exhibit (d) to
         the   Registrant's   Annual  Report  to  the  Securities  and  Exchange
         Commission on Form 10-K for the year ended December 31, 1982 (the "1982
         Form 10-K").

                                     - 11 -
<PAGE>



     (d) Indenture  dated   September  15,  1992  between  the   Registrant  and
         Continental Bank  Corporation (now known as Bank of America  Illinois),
         as  Trustee  --  incorporated  by  reference  to  Exhibit  4(a)  to the
         Registrant's Current Report on Form 8-K dated September 23, 1992.

     (e) Resolutions establishing terms of 6.875% Notes Due 1999 and 7.40% Notes
         Due  2002  --   incorporated  by  reference  to  Exhibit  4(d)  to  the
         Registrant's Annual Report to the Securities and Exchange Commission on
         Form 10-K for the year ended December 31, 1992 (the "1992 Form 10-K").

     (f) Resolutions establishing  the  terms of 6.70%  Notes Due 2003 and 6.30%
         Notes Due 2004  incorporated  by reference to Exhibits 4(c) and 4(d) of
         the   Registrant's   Annual  Report  to  the  Securities  and  Exchange
         Commission on Form 10-K for the year ended December 31, 1993 (the "1993
         Form 10-K").

     (g) Certificate of Designation for the Registrant's 8% Cumulative Perpetual
         Preferred  Stock,  $1.00  par value --  incorporated  by  reference  to
         Exhibit 4(a) to the Registrant's  Quarterly Report on Form 10-Q for the
         quarter ended September 30, 1992 (the "Third Quarter 1992 Form 10-Q").

     (h) Certificate of  Designation  for the  Registrant's  Series C Cumulative
         Preferred  Stock ---  incorporated  by  reference to Exhibit 4.1 to the
         Registrant's Current Report on Form 8-K dated February 9, 1994.

     (i) Registration Rights Agreement dated November 2, 1992 by and between the
         Registrant and Frank B. Hall & Co. Inc. -- incorporated by reference to
         Exhibit 4(c) to the Third Quarter 1992 Form 10-Q.

     (j) Registration  rights  agreement by and among the Registrant and certain
         affiliates of Ryan Insurance Group,  Inc.  (including  Patrick G. Ryan
         and Andrew J. McKenna) --  incorporated by reference to Exhibit (f) to
         the 1982 Form 10-K.

     (k) Deferred  Compensation  Agreement  by  and  among  the  Registrant  and
         Registrant's  directors who are not salaried employees of Registrant or
         Registrant's  affiliates --  incorporated by reference to Exhibit 10(i)
         to the  Registrant's  Annual  Report  to the  Securities  and  Exchange
         Commission on Form 10-K for the year ended December 31, 1987 (the "1987
         Form 10-K").

     (l) Amendment and Waiver  Agreement  dated as of November 4, 1991 among the
         Registrant and each of Patrick G. Ryan,  Shirley Ryan, Ryan Enterprises
         Corporation  and  Harvey N.  Medvin --  incorporated  by  reference  to
         Exhibit 10(j) to the 1991 Form 10-K.

     (m) Statement regarding Computation of Per Share Earnings.

     (n) Statement regarding Computation of Ratio of Earnings to Fixed Charges.

     (o) Statement regarding Computation of Ratio of Earnings to Combined Fixed
         Charges and Preferred Stock Dividends.

     (p) Aon Corporation 1994 Amended and Restated  Outside Director Stock Award
         Plan -- incorporated by reference to Exhibit 10(b) to the First Quarter
         1994 Form 10-Q.

     (q) Annual Report to  Stockholders  of the  Registrant  for the year  ended
         December 31, 1996 (for information,  and not to be deemed filed, except
         for those portions specifically incorporated by reference herein).

     (r) List of subsidiaries of the Registrant.


                                     - 12 -
<PAGE>

     (s) Consent of Ernst & Young LLP to the  incorporation  by  reference  into
         Aon's  Annual  Report on Form 10-K of its report  included  in the 1996
         Annual Report to  Stockholders  and into Aon's  Registration  Statement
         Nos. 33-27984, 33-42575, 33-57562, 33-59037 and 333-21237.

     (t) Annual Report to the  Securities  and Exchange  Commission on Form 11-K
         for the Aon Savings Plan for the year ended  December 31, 1996 -- to be
         filed by amendment as provided in Rule 15d-21(b).

     (u) Executive Compensation Plans and Arrangements:

         (A)   Aon Stock  Option Plan --  incorporated  by  reference to Exhibit
               10(a) to the  Registrant's  Annual Report to the  Securities  and
               Exchange  Commission on Form 10-K for the year ended December 31,
               1990 (the "1990 Form 10-K").

         (B)   First  Amendment  to Aon Stock  Option  Plan --  incorporated  by
               reference to Exhibit 10(b) to  Registrant's  Quarterly  Report on
               Form  10-Q for the  quarter  ended  June 30,  1994  (the  "Second
               Quarter 1994 Form 10-Q").

         (C)   Second  Amendment  to Aon Stock  Option Plan --  incorporated  by
               reference to Exhibit 10(c) to the Second Quarter 1994 Form 10-Q.

         (D)   1994  Restatement  of Aon Savings  Plan--  incorporated  by
               reference to  Exhibit 10(f)  of the 1994 Form 10-K.

         (E)   1994   Restatement  of  Aon  Employee  Stock  Ownership  Plan  --
               incorporated by reference to Exhibit 10(g) of the 1994 Form 10-K.

         (F)   Ryan Insurance Group,  Inc. Stock Option Plan together with Stock
               Option Assumption  Agreement  providing for amendment of the plan
               --  incorporated  by reference  to Exhibit  4(b) to  Registration
               Statement No. 2-79114 on Form S-8.

         (G)   Aon Stock Award Plan, as amended --  incorporated by reference to
               Exhibit 10(a) to the First Quarter 1994 Form 10-Q.

         (H)   First  Amendment to the Aon Stock Award Plan --  incorporated  by
               reference to Exhibit 10(b) to the Second Quarter 1994 Form 10-Q.

         (I)   Second  Amendment  to Aon Stock  Award  Plan --  incorporated  by
               reference to Exhibit 10(d) to the Second Quarter 1994 Form 10-Q.

         (J)   1994  Restatement  of Aon Pension  Plan-- incorporated  by
               reference to  Exhibit 10(h)  of the 1994 Form 10-K.

         (K)   Aon Corporation 1995 Senior Officer  Incentive  Compensation Plan
               incorporated  by reference to Exhibit  10(p) to the  Registrant's
               Annual Report to the Securities  and Exchange  Commission on Form
               10-K for the year ended December 31, 1995 (the "1995 Form 10-K").

         (L)   Aon  Deferred  Compensation  Plan and First  Amendment to the Aon
               Deferred  Compensation  Plan  --  incorporated  by  reference  to
               Exhibit 10(q) of the 1995 Form 10-K.

     (v) Asset Purchase  Agreement  dated July 24, 1992 between the  Registrant
         and Frank B. Hall & Co. Inc. --  incorporated  by  reference to Exhibit
         10(c) to the Registrant's  Quarterly Report on Form 10-Q for the period
         ended June 30, 1992.
                                     - 13 -
<PAGE>



     (w) Stock  Purchase  Agreement  by  and  among  the  Registrant,   Combined
         Insurance Company of America, Union Fidelity Life Insurance Company and
         General Electric Capital  Corporation  dated as of November 11, 1995 --
         incorporated by reference to Exhibit 10(s) of the 1995 Form 10-K.

     (x) Stock  Purchase  Agreement  by  and  among  the  Registrant;   Combined
         Insurance  Company of America;  The Life Insurance Company of Virginia;
         Forth Financial  Resources,  Ltd.; Newco Properties,  Inc.; and General
         Electric  Capital   Corporation  dated  as  of  December  22,  1995  --
         incorporated by reference to Exhibit 10(t) of the 1995 Form 10-K.

     (y) Agreement  and Plan of Merger  among the  Registrant;  Subsidiary
         Corporation,  Inc.  ("Purchaser");  and Alexander & Alexander Services
         Inc. ("A&A") dated as of December 11, 1996 -- incorporated by reference
         to Exhibit (c)(1) of the Registrant's Tender Offer Statement on
         Schedule 14D-1 filed by the Registrant with the Securities and Exchange
         Commission ("SEC") on December 16, 1996 (the "Schedule 14D-1")

     (z) First Amendment to Agreement and Plan of Merger, dated as of January 7,
         1997,  among  the  Registrant,  Purchaser  and A&A --  incorporated  by
         reference  to  Exhibit  (c)(3)  to  the  Schedule  14D-1  filed  by the
         Registrant with the SEC on January 9, 1997.


(b)  Reports on Form 8-K.

     The Registrant filed no Current Reports on Form 8-K during the last quarter
of the Registrant's year ended December 31, 1996.

                                     - 14 -
<PAGE>
                                   SIGNATURES


     Pursuant  to the  requirements  of  Section  13 or 15(d) of the  Securities
Exchange Act of 1934, the Registrant has duly caused this Report to be signed on
its behalf by the undersigned,  thereunto duly authorized,  on the 26th day of
March, 1997.

                                 Aon Corporation



                                 By  /s/PATRICK G. RYAN
                                    ---------------------------------------
                                    Patrick G. Ryan, Chairman, President
                                    and Chief Executive Officer


     Pursuant to the  requirements of the Securities  Exchange Act of 1934, this
Report  has  been  signed  below  by the  following  persons  on  behalf  of the
Registrant and in the capacities and on the dates indicated.


            Signature                 Title                     Date

    /s/PATRICK G. RYAN          Chairman, President, Chief     March 26, 1997
- ----------------------------  Executive Officer and Director
    Patrick G. Ryan          (Principal Executive Officer)



     /s/DANIEL T. CARROLL             Director                 March 26, 1997
- ----------------------------
     Daniel T. Carroll



     /s/FRANKLIN A. COLE              Director                 March 26, 1997
- ----------------------------
     Franklin A. Cole



     /s/EDGAR D. JANNOTTA             Director                 March 26, 1997
- ----------------------------
     Edgar D. Jannotta



     /s/PERRY J. LEWIS                Director                 March 26, 1997
- ----------------------------
     Perry J. Lewis



     /s/JOAN D. MANLEY                Director                 March 26, 1997
- ----------------------------
     Joan D. Manley

                                     - 15 -
<PAGE>

     /s/ANDREW J. MCKENNA             Director                 March 26, 1997
- ----------------------------
     Andrew J. McKenna




                                      Director
- ----------------------------
     Newton N. Minow



     /s/PEER PEDERSEN                 Director                 March 26, 1997
- ----------------------------
     Peer Pedersen



     /s/DONALD S. PERKINS             Director                 March 26, 1997
- ----------------------------
     Donald S. Perkins



     /s/JOHN W. ROGERS, JR.           Director                 March 26, 1997
- ----------------------------
     John W. Rogers, Jr.



     /s/GEORGE A. SCHAEFER            Director                 March 26, 1997
- ----------------------------
     George A. Schaefer



     /s/RAYMOND I. SKILLING           Director                 March 26, 1997
- ----------------------------
     Raymond I. Skilling



     /s/FRED L. TURNER                Director                 March 26, 1997
- ----------------------------
     Fred L. Turner



     /s/ARNOLD R. WEBER               Director                 March 26, 1997
- ----------------------------
     Arnold R. Weber



     /s/HARVEY N. MEDVIN        Executive Vice President,      March 26, 1997
- ----------------------------     Chief Financial Officer
     Harvey N. Medvin                 and Treasurer
                                (Principal Financial and
                                   Accounting Officer)


                                     - 16 -
<PAGE>

<TABLE>
<CAPTION>
                                                                                          SCHEDULE  I

                        Aon Corporation and Subsidiaries

                   CONSOLIDATED SUMMARY OF INVESTMENTS - OTHER
                       THAN INVESTMENTS IN RELATED PARTIES
                             AS OF DECEMBER 31, 1996
                                                                                           Amount shown
                                                                                           in Statement
(millions)                                                      Amortized        Fair      of Financial
                                                                   Cost         Value        Position
                                                               -----------   -----------   -----------

Fixed Maturities - available for sale:
<S>                                                            <C>           <C>           <C>
     US government and agencies ...........................    $     45.4    $     47.1    $     47.1
     States and political subdivisions ....................         491.1         514.2         514.2
     Debt securities of foreign governments
          not classified as loans .........................         948.2         989.9         989.9
     Corporate securities .................................         976.0       1,021.6       1,021.6
     Public utilities .....................................          79.7          81.0          81.0
     Mortgage-backed securities ...........................          63.6          65.3          65.3
     Other fixed maturities ...............................         110.6         107.0         107.0
                                                               -----------   -----------   -----------
          TOTAL FIXED MATURITIES...........................       2,714.6       2,826.1       2,826.1
                                                               -----------   -----------   -----------

Equity securities - available for sale:
     Common stocks:
     Banks, trusts, and insurance companies ...............         201.7         255.7         255.7
     Industrial, miscellaneous, and all other .............          70.3         138.1         138.1
     Nonredeemable preferred stocks .......................         479.0         485.4         485.4
                                                               -----------   -----------   -----------
          TOTAL EQUITY SECURITIES .........................         751.0    $    879.2         879.2
                                                               -----------   -----------   -----------

Mortgage loans on real estate .............................          29.7*                       29.0*
Real estate - net of depreciation .........................          17.8                        17.8
Policy loans ..............................................          58.2                        58.2
Other long-term investments ...............................         141.4*                      136.2*
Short-term investments ....................................       1,266.3                     1,266.3
                                                               -----------                 -----------
               TOTAL INVESTMENTS ..........................    $  4,979.0                  $   5,212.8
                                                               ===========                 ===========
<FN>
*    Differences  between  amortized  cost and amounts  shown in  Statements of
     Financial  Position for  investments  other than fixed  maturity and equity
     securities result from certain valuation allowances.
</FN>
</TABLE>

                                     - 17 -
<PAGE>
<TABLE>
<CAPTION>
                                                                                        SCHEDULE II

                                 Aon Corporation
                                (Parent Company)
                   CONDENSED STATEMENTS OF FINANCIAL POSITION

                                                                                   As of December 31,
                                                                              -------------------------
(millions)                                                                          1996          1995
                                                                              -----------   -----------

ASSETS
<S>                                                                           <C>           <C>
     Investments in subsidiaries ..........................................   $  3,268.9    $  3,617.2
     Notes receivable - subsidiaries ......................................        482.6         468.2
     Cash and cash equivalents.............................................        216.9           2.1
     Other assets .........................................................         34.4           6.6
                                                                              -----------   -----------
          Total Assets ....................................................   $  4,002.8    $  4,094.1
                                                                              ===========   ===========

LIABILITIES AND STOCKHOLDERS' EQUITY
     LIABILITIES
     Short-term borrowings ................................................   $    213.4    $    352.7
     6.3% long-term debt securities .......................................         99.8          99.7
     7.4% long-term debt securities .......................................         99.9          99.8
     6.875% long-term debt securities .....................................         99.9          99.8
     6.7% long-term debt securities .......................................        149.7         149.7
     Notes payable - subsidiaries .........................................        351.4         457.0
     Notes payable - other ................................................           --          15.7
     Debt guarantee of employee stock ownership plan ......................         46.1          56.8
     Accrued expenses and other liabilities ...............................         59.7          39.2
                                                                              -----------   -----------
          Total Liabilities ...............................................      1,119.9       1,370.4
                                                                              -----------   -----------

     Redeemable Preferred Stock ...........................................         50.0          50.0

     STOCKHOLDERS' EQUITY
     Preferred stock ......................................................          5.5           8.1
     Common stock .........................................................        114.1         111.4
     Paid-in additional capital ...........................................        475.4         431.8
     Net unrealized investment gains of subsidiaries ......................        153.1         123.1
     Net foreign exchange gains of subsidiaries ...........................          1.0           1.8
     Retained earnings ....................................................      2,356.8       2,212.1
     Less treasury stock at cost ..........................................       (121.5)        (97.3)
     Less deferred compensation ...........................................       (151.5)       (117.3)
                                                                              -----------   -----------
          Total Stockholders' Equity ......................................      2,832.9       2,673.7
                                                                              -----------   -----------
          Total Liabilities and Stockholders' Equity ......................   $  4,002.8    $  4,094.1
                                                                              ===========   ===========
<FN>
See notes to condensed financial statements.
</FN>
</TABLE>

                                     - 18 -
<PAGE>
<TABLE>
<CAPTION>
                                                                                          SCHEDULE II
                                                                                          (Continued)
                                 Aon Corporation
                                (Parent Company)
                         CONDENSED STATEMENTS OF INCOME

                                                                      Years ended December 31
                                                               ---------------------------------------
                                                                     1996          1995          1994
                                                               -----------   -----------   -----------
(millions)

REVENUE
<S>                                                            <C>           <C>           <C>
     Dividends from subsidiaries ..........................    $  1,026.6    $    199.3    $    166.2
     Other investment income ..............................          44.1          34.3          34.8
     Realized investment losses ...........................         (11.0)         (4.1)           --
                                                               -----------   -----------   -----------
          Total Revenue ...................................       1,059.7         229.5         201.0


EXPENSES
     Operating and administrative .........................           5.7           3.0           2.3
     Interest - subsidiaries ...............................         20.6          20.0          12.2
     Interest - other ......................................         43.2          53.6          45.1
                                                               -----------   -----------   -----------
          Total Expenses (1)................................         69.5          76.6          59.6
                                                               -----------   -----------   -----------


INCOME BEFORE EQUITY IN UNDISTRIBUTED INCOME
     OF SUBSIDIARIES .......................................        990.2         152.9         141.4

Equity in undistributed income of subsidiaries .............       (655.0)        249.9         218.6
                                                               -----------   -----------   -----------

     NET INCOME ............................................        335.2         402.8         360.0
                                                               ===========   ===========   ===========

<FN>
See notes to condensed financial statements.

(1)  Interest  expense  - other  allocated  to  discontinued  operations  was $5
     million, $18 million and $14 million for the years ended December 31, 1996,
     1995 and 1994, respectively.
</FN>
</TABLE>

                                     - 19 -
<PAGE>
<TABLE>
<CAPTION>
                                                                                          SCHEDULE II
                                                                                          (Continued)

                                 Aon Corporation
                                (Parent Company)
                       CONDENSED STATEMENTS OF CASH FLOWS

                                                                      Years ended December 31
                                                               ---------------------------------------
                                                                     1996          1995          1994
                                                               -----------   -----------   -----------
(millions)

<S>                                                            <C>           <C>           <C>
Cash Flows From Operating Activities ......................    $  1,016.9    $    164.5    $    164.1

Cash Flows From Investing Activities:
     Investments in subsidiaries ..........................        (319.3)        (62.6)        (31.3)
     Notes receivables from subsidiaries ..................         (10.8)          1.5         (15.5)
                                                               -----------   -----------   -----------
          Cash Used by Investing Activities ...............        (330.1)        (61.1)        (46.8)
                                                               -----------   -----------   -----------

Cash Flows From Financing Activities:
     Treasury stock transactions - net ....................         (40.1)        (46.4)        (15.4)
     Issuance (repayment) of short-term borrowings - net ..        (139.2)        108.8          75.3
     Issuance of notes payable and long-term debt .........            --          73.6         174.5
     Repayment of notes payable and long-term debt ........        (105.6)           --        (125.0)
     Retirement of preferred stock ........................         (14.2)        (75.4)        (58.3)
     Cash dividends to stockholders .......................        (172.9)       (171.3)       (162.3)
                                                               -----------   -----------   -----------
          Cash Used by Financing Activities ...............        (472.0)       (110.7)       (111.2)
                                                               -----------   -----------   -----------

Increase (Decrease) in Cash and Cash Equivalents ..........         214.8          (7.3)          6.1
Cash and Cash Equivalents at Beginning of Year ............           2.1           9.4           3.3
                                                               -----------   -----------   -----------
Cash and Cash Equivalents at end of Year ..................    $    216.9    $      2.1    $      9.4
                                                               ===========   ===========   ===========
<FN>
See notes to condensed financial statements.
</FN>
</TABLE>

                                     - 20 -
<PAGE>
                                                                   SCHEDULE II
                                                                   (Continued)


                                 Aon Corporation
                                (Parent Company)
                     NOTES TO CONDENSED FINANCIAL STATEMENTS


1.   See notes to consolidated  financial  statements  incorporated by reference
     from the Annual  Report.


2.   Cash and cash equivalents on the condensed statements of financial position
     include short-term investments.

3.   Payments made as  assessments  by state  guaranty  funds to cover losses to
     policyholders of insurance  companies under regulatory  supervision for the
     years ended December 31, 1996, 1995 and 1994 were $1.4 million,  $5 million
     and  $6.9  million,  respectively.  In  addition,  Aon's  reserve  for  the
     recognition of probable  assessments for known industry insolvencies was $0
     million and $7 million at December 31, 1996 and 1995, respectively.

4.   Generally,  the net assets of Aon's  insurance  subsidiaries  available for
     transfer  to the  parent  company  are  limited  to the  amounts  that  the
     insurance  subsidiaries'  statutory  net assets  exceed  minimum  statutory
     capital  requirements;  however,  payment of the  amounts as  dividends  in
     excess  of  $987   million  may  be  subject  to  approval  by   regulatory
     authorities.

5.   Subsequent Event
     On March 21, 1997,  Aon's  directors  approved a three-for-two stock split,
     payable on May 14, 1997 in the form of a stock dividend of one common share
     for every two shares  held,  to  stockholders  of record as of the close of
     business on May 1, 1997. Because the stock split was approved subsequent to
     the distribution of Aon's 1996 Annual Report to Stockholders, references to
     common  stock  and  earnings  per  share  data  in  the  Annual  Report  to
     Stockholders  and in  this  Annual  Report  on  Form  10-K  have  not  been
     retroactively  adjusted.  Retroactively  adjusting such information to give
     effect to the stock  split for  1996,  1995 and 1994,  respectively,  would
     result in net income per share of $1.91,  $2.32 and $2.09 and dividends per
     share of $0.95, $0.89 and $0.84.

                                     - 21 -
<PAGE>
                                 Aon Corporation
                                (Parent Company)
                     NOTES TO CONDENSED FINANCIAL STATEMENTS

(6)  Below is a reconciliation of the combined  statutory  stockholders'  equity
     and  net  income  of  Aon's  insurance  subsidiaries  to  the  consolidated
     stockholders' equity and net income on a basis in accordance with generally
     accepted accounting principles (GAAP):

<TABLE>
<CAPTION>
(millions)
                                                      As of December 31, 1996                  As of December 31, 1995
                                                -------------------------------------    -------------------------------------
                                                  Life/A&H          P&C     Combined       Life/A&H          P&C     Combined
                                                -----------  -----------  -----------    -----------  -----------  -----------
<S>                                             <C>          <C>          <C>            <C>          <C>          <C>
Statutory Stockholders' Equity                  $    611.7   $    363.8   $    975.5     $    766.2   $    296.6   $  1,062.8
Insurance business related adjustments:
  Deferred policy acquisition costs                  488.8        110.0        598.8        1,177.9         83.6      1,261.5
  Cost of insurance purchased                           --           --           --           87.2           --         87.2
  Excess of cost over net assets purchased             2.6           --          2.6          143.4           --        143.4
  Policy liabilities and reinsurance assets          112.1           --        112.1          100.3           --        100.3
  Deferred income taxes                             (186.1)        24.3       (161.8)        (301.8)        32.1       (269.7)
  Investment valuation reserves                      133.7           --        133.7          176.3           --        176.3
  Non Admitted Assets                                 47.3          5.9         53.2           79.6          5.1         84.6
  Unrealized capital gains (losses) (FAS 115)         76.8         34.8        111.6           74.8         40.2        115.0
                                                -------------------------------------    -------------------------------------
Subtotal                                        $  1,287.0   $    538.8      1,825.7     $  2,303.9   $    457.6      2,761.4
                                                ========================                 ========================
Investment in other operations and other                                     1,443.2                                    855.8
                                                                          -----------                              -----------
Investments in subsidiaries                                                  3,268.9                                  3,617.2
Elimination of parent company contributions                                   (436.0)                                  (943.5)
                                                                          -----------                              -----------
Consolidated Stockholders' Equity                                         $  2,832.9                               $  2,673.7
                                                                          ===========                              ===========
</TABLE>
<TABLE>
<CAPTION>
                                                      As of December 31, 1996                  As of December 31, 1995
                                                -------------------------------------    -------------------------------------
                                                  Life/A&H          P&C     Combined       Life/A&H          P&C     Combined
                                                -----------  -----------  -----------    -----------  -----------  -----------
<S>                                             <C>          <C>          <C>            <C>          <C>          <C>
Statutory Net Income *                          $    807.4   $     70.7   $    878.1     $    196.7   $     57.5   $    254.2
Insurance business related adjustments:
  Deferred policy acquisition costs                  121.6         95.1        216.7          325.6         84.7        410.3
  Amortization of deferred policy acquisition
    costs                                           (166.9)       (68.7)      (235.6)        (240.3)       (62.4)      (302.7)
  Amortization of cost of insurance purchased         (2.0)          --         (2.0)         (10.4)          --        (10.4)
  Amortization of excess of cost over net
    assets purchased                                  (0.9)          --        (0.9)          (4.9)          --         (4.9)
  Policy liabilities and reinsurance assets           11.8           --         11.8             --           --        (31.0)
  Deferred income taxes                               (4.0)        (9.2)       (13.3)         (24.9)          --        (24.9)
  Change in valuation reserves                         4.1           --          4.1            5.6           --          5.6
  Deferred capital losses                              2.8         (3.5)        (0.7)          34.3          5.9         40.2
  Difference in realized gain on sale of
    subsidiar net of tax                            (551.2)                   (551.2)
  Realized (gain)/loss on transfer of
    subsidiary                                          --           --           --            7.0           --          7.0
                                                -------------------------------------    -------------------------------------
Subtotal                                        $    222.8   $     84.4        307.1     $    288.8   $     85.7        343.4
                                                ========================                 ========================
Investment in other operations and other                                        28.1                                     59.4
                                                                          -----------                              -----------
Consolidated Net Income - GAAP Basis                                      $    335.2                               $    402.8
                                                                          ===========                              ===========
<FN>
* net of intercompany dividends
</FN>
</TABLE>

<TABLE>
<CAPTION>
                                                      As of December 31, 1994
                                                -------------------------------------
                                                  Life/A&H          P&C     Combined
                                                -----------  -----------  -----------
<S>                                             <C>          <C>          <C>
Statutory Net Income *                          $    271.9   $     34.1   $    306.0
Insurance business related adjustments:
  Deferred policy acquisition costs                  337.7         76.8        414.5
  Amortization of deferred policy acquisition
    costs                                           (227.7)       (48.5)      (276.2)
  Amortization of cost of insurance purchased        (13.9)          --        (13.9)
  Amortization of excess of cost over net
    assets purchased                                  (4.8)          --         (4.8)
  Policy liabilities and reinsurance assets           19.2           --         19.2
  Deferred income taxes                              (64.7)        (6.9)       (71.6)
  Change in valuation reserves                        26.6           --         26.6
  Deferred capital losses                               --           --           --
  Difference in realized gain on sale of
    subsidiary net of tax
  Realized (gain)/loss on transfer of
  subsidiary                                         (89.4)          --        (89.4)
                                                -------------------------------------
Subtotal                                        $    254.9   $     55.5        310.4
                                                ========================
Investment in other operations and other                                        49.6
                                                                          -----------
Consolidated Net Income - GAAP Basis                                      $    360.0
                                                                          ===========
<FN>
* net of intercompany dividends
</FN>
</TABLE>
                                     - 22 -
<PAGE>
<TABLE>
<CAPTION>
                                                                                                                   SCHEDULE III

                        Aon Corporation and Subsidiaries
                       SUPPLEMENTARY INSURANCE INFORMATION



                                         Future                                          Benefit,    Amort-
                                         policy  Unearned                                 claims,   ization
                                      benefits,  premiums                                  losses  deferred
                             Deferred   losses, and other                 Net   Commis-       and    policy    Other
                               policy    claims   policy-             invest-     sions   settle-    acqui-     oper-
                          acquisition  and loss   holders   Premium      ment      fees      ment    sition     ating  Premiums
                              costs(1) expenses     funds   revenue  income(2)  & other  expenses   costs(1) expenses written(3)
                             --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
(millions)
Year ended
December 31, 1996
 Insurance brokerage
  and consulting
<S>                          <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>
  services ...............   $     --  $     --  $     --  $     --  $   83.5  $1,918.8  $     --  $     --  $1,820.2  $     --
Insurance underwriting ...      598.8   1,920.3   2,439.3   1,526.7     197.0      50.1     789.5     207.9     524.1   1,581.6
 Corporate and
  other ..................         --        --        --        --     103.5       8.6        --        --     100.9        --
                             --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
     Total ...............   $  598.8  $1,920.3  $2,439.3  $1,526.7  $  384.0  $1,977.5  $  789.5  $  207.9  $2,445.2  $1,581.6
                             ========  ========  ========  ========  ========  ========  ========  ========  ========  ========

Year ended
December 31, 1995 (4)
 Insurance brokerage
  and consulting
  services ...............   $     --  $     --  $     --  $     --  $   75.7  $1,651.3  $     --  $     --  $1,515.1  $     --
Insurance underwriting ...    1,348.7   2,446.0   7,110.4   1,426.5     168.5      44.9     698.5     207.5     487.5   1,596.2
 Corporate and
  other ..................         --        --        --        --      85.2      13.6        --        --      99.1        --
                             --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
     Total ...............   $1,348.7  $2,446.0  $7,110.4  $1,426.5  $  329.4  $1,709.8  $  698.5  $  207.5  $2,101.7  $1,596.2
                             ========  ========  ========  ========  ========  ========  ========  ========  ========  ========


Year ended
December 31, 1994 (4)
 Insurance brokerage
  and consulting
  services ...............   $     --  $     --  $     --  $     --  $   47.7  $1,388.7  $     --  $     --  $1,279.0  $     --
Insurance underwriting ...    1,290.6   2,378.7   6,931.7   1,322.3     142.3      44.9     626.2     189.7     458.3   1,478.2
 Corporate and
  other ..................         --        --        --        --      67.1      28.2        --        --      91.0        --
                             --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
     Total ...............   $1,290.6  $2,378.7  $6,931.7  $1,322.3  $  257.1  $1,461.8  $  626.2  $  189.7   1,828.3  $1,478.2
                             ========  ========  ========  ========  ========  ========  ========  ========  ========  ========
<FN>
(1)  Includes cost of insurance purchased.

(2)  The above results  reflect  allocations  of  investment  income and certain
     expense elements considered reasonable under the circumstances.

(3)  Net of reinsurance ceded.

(4)  Reclassified to conform to the 1996 presentation.
</FN>
</TABLE>

                                     - 23 -
<PAGE>
<TABLE>
<CAPTION>
                                                                                                    SCHEDULE IV
                        Aon Corporation and Subsidiaries
                                   REINSURANCE


                                                                                   Year Ended December 31, 1996
                                                               -------------------------------------------------------------------
                                                                                                                       Percentage
                                                                               Ceded to       Assumed                   of amount
                                                                    Gross         other    from other           Net    assumed to
(millions)                                                         amount     companies     companies        amount           net
                                                               -----------   -----------   -----------   -----------   -----------
<S>                                                            <C>           <C>           <C>           <C>                <C>
Life insurance in force (1) ...............................    $ 10,996.7    $ 12,749.8    $ 10,304.1    $  8,551.0         120.5%
                                                               ===========   ===========   ===========   ===========   ===========


Premiums and policy fees
  Life Insurance ..........................................    $    206.5    $    133.0    $     87.7    $    161.2          54.4%
  A&H Insurance ...........................................       1,045.3         213.9         112.7         944.1          11.9
  Specialty Property & Casualty (2) .......................         490.3         160.8          91.9         421.4          21.8
                                                               -----------   -----------   -----------   -----------   -----------
Total premiums and policy fees ............................    $  1,742.1    $    507.7    $    292.3    $  1,526.7          19.1%
                                                               ===========   ===========   ===========   ===========   ===========
</TABLE>
<TABLE>
<CAPTION>
                                                                                   Year Ended December 31, 1995
                                                               -------------------------------------------------------------------
                                                                                                                       Percentage
                                                                               Ceded to       Assumed                   of amount
                                                                    Gross         other    from other           Net    assumed to
(millions)                                                         amount     companies     companies        amount           net
                                                               -----------   -----------   -----------   -----------   -----------

<S>                                                            <C>           <C>           <C>           <C>                 <C>
Life insurance in force (1) ...............................    $ 80,176.6    $ 27,936.6    $    991.4    $ 53,231.4           1.9%
                                                               ===========   ===========   ===========   ===========   ===========

Premiums and policy fees
  Life Insurance ..........................................    $    251.9    $     83.9    $      4.0    $    172.0           2.3%
  A&H Insurance ...........................................       1,032.9          98.5           5.1         939.5           0.5
  Specialty Property & Casualty (2) .......................         375.0         133.9          73.9         315.0          23.5
                                                               -----------   -----------   -----------   -----------   -----------
Total premiums and policy fees ............................    $  1,659.8    $    316.3    $     83.0    $  1,426.5           5.8%
                                                               ===========   ===========   ===========   ===========   ===========

</TABLE>
<TABLE>
<CAPTION>

                                                                                    Year Ended December 31, 1994
                                                               -------------------------------------------------------------------
                                                                                                                       Percentage
                                                                               Ceded to       Assumed                   of amount
                                                                    Gross         other    from other           Net    assumed to
(millions)                                                         amount     companies     companies        amount           net
                                                               -----------   -----------   -----------   -----------   -----------
<S>                                                            <C>           <C>           <C>           <C>                  <C>
Life insurance in force (1) ...............................    $ 74,047.9    $ 25,109.7    $  1,173.9    $ 50,112.1           2.3%
                                                               ===========   ===========   ===========   ===========   ===========

Premiums and policy fees
  Life Insurance ..........................................    $    245.0    $     81.7    $      5.1    $    168.4           3.0%
  A&H Insurance ...........................................         996.2          98.6           6.4         904.0           0.7
  Specialty Property & Casualty (2) .......................         309.9         139.1          79.1         249.9          31.7
                                                               -----------   -----------   -----------   -----------   -----------
Total premiums and policy fees ... ........................    $  1,551.1    $    319.4    $     90.6    $  1,322.3           6.9%
                                                               ===========   ===========   ===========   ===========   ===========
<FN>
(1)  Includes credit life insurance.

(2)  Includes  mechanical  repair  insurance  sold through  automobile  dealers,
     appliance warranty insurance and property liability insurance.
</FN>
</TABLE>

                                     - 24 -
<PAGE>
<TABLE>
<CAPTION>
                                                                                                            SCHEDULE V
                                 Aon CORPORATION
                        VALUATION AND QUALIFYING ACCOUNTS
                  Years Ended December 31, 1996, 1995 and 1994


                            (millions)                                                Additions
                                                                                 ----------------------
                                                                                              Charged/
                                                                Balance at    Charged to    (credited)                     Balance
                                                                 beginning      cost and      to other   Deductions         at end
                             Description                           of year      expenses      accounts           (1)       of year
- ----------------------------------------------------------------------------------------------------------------------------------
Year Ended December 31, 1996
- ----------------------------
 Reserve for losses (2)
<S>                                                            <C>           <C>           <C>           <C>           <C>
 (deducted from mortgage loans on real estate)                 $     25.6    $       --    $    (24.9)   $       --    $      0.7

 Reserve for losses
 (deducted from other long-term investments)                          5.2            --            --            --           5.2

 Allowance for doubtful accounts (4)
 (deducted from insurance brokerage and consulting
 services receivables)                                               47.4           9.5          13.4         (10.5)         59.9

 Allowance for doubtful accounts (2)
 (deducted from premiums and other)                                   3.9           2.1          (2.9)           --           3.1


Year Ended December 31, 1995
- ----------------------------
 Reserve for losses (3)
 (deducted from mortgage loans on real estate)                 $     29.7    $       --    $     (4.1)   $       --    $     25.6

 Reserve for losses (3)
 (deducted from other long-term investments)                          6.7            --           1.0          (2.5)          5.2

 Allowance for doubtful accounts
 (deducted from insurance brokerage and consulting
 services receivables)                                               45.2           6.0            --          (3.8)         47.4

 Allowance for doubtful accounts
 (deducted from premiums and other)                                   3.2           2.0            --          (1.3)          3.9


Year Ended December 31, 1994
- ----------------------------
 Reserve for losses (3)
 (deducted from mortgage loans on real estate)                 $     42.0    $       --    $    (12.3)   $       --    $     29.7

 Reserve for losses
 (deducted from long-term bonds)                                     11.7            --            --         (11.7)           --

 Reserve for losses (3)
 (deducted from other long-term investments)                          9.3            --          (2.6)           --           6.7

 Allowance for doubtful accounts (4)
 (deducted from insurance brokerage and consulting
 services receivables)                                               41.2           7.0           1.3          (4.3)         45.2

 Allowance for doubtful accounts
 (deducted from premiums and other)                                   3.1           1.4            --          (1.3)          3.2
<FN>
(1)  Amounts deemed to be uncollectible.
(2)  Amounts shown in additions credited to other accounts  primarily  represent
     reduction due to sale of discontinued operations.
(3)  Amounts shown in additions  charged/(credited)  to other accounts represent
     realized investment (gains)/losses.
(4)  Amounts shown in additions  charged to other  accounts  represent  reserves
     related to acquired business.
</FN>
</TABLE>

                                     - 25 -
<PAGE>

                         Cross Reference Sheet, Pursuant
                           to General Instruction G(4)




Item in Form 10-K                              Incorporated by Reference to
- -----------------                              ----------------------------

Part I

  Item  1.   Business                          Annual Report to Stockholders of
                                               the Registrant for the Year 1996
                                               ("Annual Report")pages 6 through
                                               15.

  Item  3.   Legal Proceedings                 Annual Report page 40 (note 12 of
                                               Notes to Consolidated Financial
                                               Statements).

Part  II

  Item  5.   Market for the Registrant's       Annual Report pages 34 and 35
             Common Stock and Related          (note 8 of Notes to Consolidated
             Security Holder Matters           Financial Statements) and page 43
                                               ("Dividends paid per share" and
                                               "Price range").




  Item  6.   Selected Financial Data           Annual Report page 42.

  Item  7.   Management's Discussion and       Annual Report pages 17 through
             Analysis of Financial Condition   23.
             and Results of Operations


  Item  8.   Financial Statements and          Annual Report pages 24 through 41
             Supplementary Data                and 43.



Part III

  Item 10.   Directors and Executive Officers  Notice of Annual Meeting of
              of the Registrant                Holders of Common Stock and
                                               Series C Preferred Stock and
                                               Proxy Statement For Annual
                                               Meeting of Stockholders on April
                                               18,  1997 of the Registrant
                                               ("Proxy Statement") pages 3 and
                                               7.

  Item 11.   Executive Compensation            Proxy Statement pages 12 through
                                               15.

  Item 12.   Security Ownership of Certain     Proxy Statement pages 2, 8 and 9.
             Beneficial Owners and Management

  Item 13.   Certain Relationships and         Proxy Statement page 20
             Related Transactions              ("Transactions With Management").

Part IV

  Item 14.   Exhibits, Financial Statement     Annual Report pages 24 through
             Schedules, and Reports on         41.
             Form 8-K

                                     - 26 -
<PAGE>
                                  EXHIBIT INDEX

Exhibit Number                                              Page Number of
Regulation                                                  Sequentially
S-K, Item 601                                               Numbered Copy
- -------------                                               -------------


     (3) Articles of incorporation and bylaws:

             (a)  Second Restated Certificate of Incorporation of the Registrant
                  --  incorporated by reference to Exhibit 3(a) to the 1991 Form
                  10-K.

             (b)  Certificate of Amendment of the  Registrant's  Second Restated
                  Certificate of  Incorporation  -- incorporated by reference to
                  Exhibit 3 to the First Quarter 1994 Form 10-Q.


             (c)  Bylaws of the Registrant -- incorporated by reference to
                  Exhibit (d) to the 1982 Form 10-K.

             (d)  Certificate of Designation for the  Registrant's 8% Cumulative
                  Perpetual  Preferred Stock, $1.00 par value -- incorporated by
                  reference to Exhibit 4(a) to the Third Quarter 1992 Form 10-Q.

             (e)  Certificate  of  Designation  for the  Registrant's  Series  C
                  Cumulative  Preferred  Stock --  incorporated  by reference to
                  Exhibit  4.1 to the  Registrant's  Current  Report on Form 8-K
                  dated February 9, 1994.

     (4) Instruments defining the rights of security holders, including
         indentures:

             (a)  Indenture  dated September 15, 1992 between the Registrant and
                  Continental  Bank  Corporation  (now  known as Bank of America
                  Illinois),  as Trustee -- incorporated by reference to Exhibit
                  4(a) of the  Registrant's  Current  Report  on Form 8-K  dated
                  September 23, 1992.

             (b)  Resolutions  establishing  terms of 6.875%  Notes Due 1999 and
                  7.40% Notes Due 2002 --  incorporated  by reference to Exhibit
                  4(d) to the 1992 Form 10-K.

             (c)  Resolutions  establishing  the  terms of 6.70%  Notes Due 2003
                  incorporated  by  reference  to Exhibit  4(c) to the 1993 Form
                  10-K.

             (d)  Resolutions  establishing  the  terms of 6.30%  Notes Due 2004
                  incorporated  by  reference  to Exhibit  4(d) to the 1993 Form
                  10-K.

  (10)   Material Contracts:

             (a)  Aon Stock Option Plan --  incorporated by reference to Exhibit
                  10(a) to the 1990 Form 10-K.

                                     - 27 -
<PAGE>
                                  EXHIBIT INDEX

Exhibit Number                                              Page Number of
Regulation                                                  Sequentially
S-K, Item 601                                               Numbered Copy
- -------------                                               -------------


             (b)  First  Amendment to Aon Stock Option Plan --  incorporated  by
                  reference to the Exhibit 10(a) to the Second Quarter 1994 Form
                  10-Q.

             (c)  Second  Amendment to Aon Stock Option Plan --  incorporated by
                  reference  to Exhibit  10(c) to the Second  Quarter  1994 Form
                  10-Q.

             (d)  Ryan Insurance  Group,  Inc. Stock Option Plan together with
                  Stock Option Assumption Agreement providing for amendment of
                  the plan -- incorporated by reference to Exhibit 4(b) to the
                  Registration Statement No. 2-79114 on Form S-8.

             (e)  Registration Rights Agreement by and among the Registrant and
                  certain affiliates of Ryan Insurance Group, Inc. (including
                  Patrick G. Ryan and Andrew J. McKenna) -- incorporated by
                  reference to Exhibit (f) to the 1982 Form 10-K.

             (f)  1994  Restatement  of Aon  Savings  Plan  --  incorporated  by
                  reference to Exhibit 10(f) to the 1994 Form 10-K.

             (g)  1994  Restatement  of Aon  Employee  Stock  Ownership  Plan --
                  incorporated  by reference  to Exhibit  10(g) to the 1994 Form
                  10-K.

             (h)  1994  Restatement  of Aon  Pension  Plan  --  incorporated  by
                  reference to Exhibit 10(h) to the 1994 Form 10-K.

             (i)  Deferred  Compensation  Agreement by and among  Registrant and
                  Registrant's  directors  who are  not  salaried  employees  of
                  Registrant  or  Registrant's  affiliates  --  incorporated  by
                  reference to Exhibit 10(i) to the 1987 Form 10-K.

             (j)  Aon Stock Award Plan, as amended --  incorporated by reference
                  to Exhibit 10(a) to the First Quarter 1994 Form 10-Q.

             (k)  Amendment  and Waiver  Agreement  dated as of November 4, 1991
                  among the  Registrant  and each of Patrick  G.  Ryan,  Shirley
                  Ryan,  Ryan  Enterprises  Corporation  and Harvey N. Medvin --
                  incorporated  by reference  to Exhibit  10(j) to the 1991 Form
                  10-K.

             (l)  Registration  Rights Agreement dated November 2, 1992 by and
                  between  the   Registrant  and  Frank  B.  Hall  &  Co.  Inc.
                  -- incorporated  by reference  to exhibit 4(c) to the Third
                  Quarter 1992 Form 10-Q.

             (m)  Aon  Corporation  1994 Amended and Restated  Outside  Director
                  Stock Award Plan -- incorporated by reference to Exhibit 10(b)
                  to the First Quarter 1994 Form 10-Q.

             (n)  First Amendment to the Aon Stock Award Plan -- incorporated by
                  reference  to Exhibit  10(b) to the Second  Quarter  1994 Form
                  10-Q.

                                     - 28 -
<PAGE>
                                  EXHIBIT INDEX

Exhibit Number                                              Page Number of
Regulation                                                  Sequentially
S-K, Item 601                                               Numbered Copy
- -------------                                               -------------


             (o)  Second  Amendment to Aon Stock Award Plan --  incorporated  by
                  reference  to Exhibit  10(d) to the Second  Quarter  1994 Form
                  10-Q.

             (p)  Aon  Corporation  1995 Senior Officer  Incentive  Compensation
                  Plan -- incorporated by reference to Exhibit 10(p) to the 1995
                  Form 10-K.

             (q)  Aon Deferred  Compensation Plan and First Amendment to the Aon
                  Deferred  Compensation  Plan --  incorporated  by reference to
                  Exhibit 10(q) to the 1995 Form 10-K.

             (r)  Asset  Purchase  Agreement  dated July 24,  1992  between  the
                  Registrant  and Frank B. Hall & Co.  Inc. --  incorporated  by
                  reference  to  Exhibit  10(c)  to the  Registrant's  Quarterly
                  Report on Form 10-Q for the period ended June 30, 1992.

             (s)  Stock Purchase Agreement by and among the Registrant, Combined
                  Insurance  Company of America,  Union  Fidelity Life Insurance
                  Company and General Electric Capital  Corporation  dated as of
                  November  11, 1995 --  incorporated  by  reference  to Exhibit
                  10(s) of the 1995 Form 10-K.

             (t)  Stock Purchase Agreement by and among the Registrant; Combined
                  Insurance  Company of America;  The Life Insurance  Company of
                  Virginia;  Forth Financial Resources,  Ltd.; Newco Properties,
                  Inc.; and General  Electric  Capital  Corporation  dated as of
                  December  22, 1995 --  incorporated  by  reference  to Exhibit
                  10(t) to the 1995 Form 10-K.

             (u)  Agreement and Plan of Merger among the  Registrant,  Purchaser
                  and A&A  dated as of  December  11,  1996 --  incorporated  by
                  reference to Exhibit (c)(1) to the Registrant's Schedule 14D-1
                  filed with the SEC on December 16, 1996.

             (v)  First  Amendment to  Agreement  and Plan of Merger dated as of
                  January 7, 1997  among the  Registrant,  Purchaser  and A&A --
                  incorporated  by reference to Exhibit (c)(3) to Schedule 14D-1
                  filed by the Registrant with the SEC on January 9, 1997.

             (w)  Second Amendment to Aon Employee Stock Option Plan -
                  incorporated by reference to Exhibit 10(a) to the Second
                  Quarter 1996 Form 10-Q.

             (x)  Fifth Amendment to Aon Pension Plan - incorporated by
                  reference to Exhibit 10(b) to the Second Quarter 1996 Form
                  10-Q.

             (y)  Third Amendment to Aon Savings Plan - incorporated by
                  reference to Exhibit 10(c) to the Second Quarter 1996 Form
                  10-Q.

             (z)  Third Amendment ot Aon Pension Plan - incorporated by
                  reference to Exhibit 10(d) to Second Quarter 1996 Form 10-Q.



                                     - 29 -
<PAGE>
                                  EXHIBIT INDEX

Exhibit Number                                              Page Number of
Regulation                                                  Sequentially
S-K, Item 601                                               Numbered Copy
- -------------                                               -------------


          (a)(a)  Share Purchase Agreement between the Registrant and Inchape
                  plc dated 15 October 1996(to be filed by amendment to this
                  form 10-K).

  (11)   Statement regarding Computation of Per Share Earnings.

  (12)   Statements regarding Computation of Ratios.

             (a)  Statement regarding Computation of Ratio of Earnings to Fixed
                  Charges.

             (b)  Statement regarding Computation of Ratio of Earnings to
                  Combined Fixed Charges and Preferred Stock Dividends.

  (13)   Annual  Report to  Stockholders  of the  Registrant  for the year ended
         December 31, 1996 (for information,  and not to be deemed filed, except
         for those portions specifically incorporated by reference herein).

  (21)   List of subsidiaries of the Registrant.

  (23)   Consent of Ernst & Young LLP to the  incorporation  by  reference  into
         Aon's Annual  Report on Form 10-K of their report  included in the 1996
         Annual Report to  Stockholders  and into Aon's  Registration  Statement
         Nos. 33-27984, 33-42575, 33-57562, 33-59037 and 333-21237.

  (99)   Annual Report to the  Securities  and Exchange  Commission on Form 11-K
         for the Aon Savings Plan for the year ended  December 31, 1996 -- to be
         filed by amendment as provided in Rule 15d-21(b).

                                     - 30 -
<PAGE>


<TABLE>
<CAPTION>
                                                                                             EXHIBIT 11

                        Aon Corporation and Subsidiaries

                  CONSOLIDATED NET INCOME PER SHARE COMPUTATION

(millions except per share data)                                       Years Ended December 31
                                                               ---------------------------------------
                                                                     1996          1995          1994
                                                               -----------   -----------   -----------

EARNINGS PER SHARE
<S>                                                            <C>           <C>           <C>
     Net income ...........................................    $    335.2    $    402.8    $    360.0
     Preferred stock dividends ............................          18.8          24.7          26.8
                                                               -----------   -----------   -----------
          Net income less preferred stock dividends .......    $    316.4    $    378.1    $    333.2
                                                               ===========   ===========   ===========


     Average common shares issued .........................         111.9         110.8         107.1
     Net effect of treasury stock activity ................          (3.0)         (2.8)         (4.4)
     Weighted average effect of Series B preferred stock ..            --            --           2.8
     Net effect of dilutive stock compensation plans based
          on the treasury stock method ....................           1.3           0.7           0.7
                                                               -----------   -----------   -----------
               Average common and common equivalent shares
                    outstanding ...........................         110.2         108.7         106.2
                                                               ===========   ===========   ===========
NET INCOME PER SHARE (1) (2)...............................    $     2.87    $     3.48    $     3.14
                                                               ===========   ===========   ===========

<FN>
(1) Primary and fully diluted net income per share are materially the same.
(2) See note 5 to condensed financial statements.
</FN>
</TABLE>
                                       - 31 -
<PAGE>

<TABLE>
<CAPTION>
                                                                                                      EXHIBIT 12(a)
                  Aon Corporation and Consolidated Subsidiaries
                    Combined With Unconsolidated Subsidiaries
                Computation of Ratio of Earnings to Fixed Charges

                                                                             Years Ended December 31,
                                                      --------------------------------------------------------------
(millions except ratios)                                   1996         1995         1994         1993       1992(1)
                                                      --------------------------------------------------------------


Income from continuing operations before
<S>                                                   <C>          <C>          <C>          <C>          <C>
     provision for income tax                         $   445.6    $   458.0    $   397.0    $   331.6    $   179.1

Add back fixed charges:

Interest on indebtedness                                   44.7         55.5         46.4         42.3         41.9

Interest on ESOP                                            4.3          5.3          5.9          6.5          6.9

Portion of rents representative of
     interest factor                                       28.6         21.4         28.7         26.1         19.2
                                                      ----------   ----------   ----------   ----------   ----------

     Income as adjusted                               $   523.2    $   540.2    $   478.0    $   406.5    $   247.1
                                                      ----------   ----------   ----------   ----------   ----------


Fixed charges:

Interest on indebtedness                              $    44.7    $    55.5    $    46.4    $    42.3    $    41.9

Interest on ESOP                                            4.3          5.3          5.9          6.5          6.9

Portion of rents representative of
     interest factor                                       28.6         21.4         28.7         26.1         19.2
                                                      ----------   ----------   ----------   ----------   ----------

     Total fixed charges                                   77.6         82.2         81.0         74.9         68.0
                                                      ==========   ==========   ==========   ==========   ==========

Ratio of earnings to fixed charges                          6.7          6.6          5.9          5.4          3.6
                                                      ==========   ==========   ==========   ==========   ==========

Ratio of earnings to fixed charges (2)                      7.2          8.4          7.6          7.4          5.3
                                                      ==========   ==========   ==========   ==========   ==========
<FN>
(1)  Income  from  continuing  operations  before  provision  for  income  taxes
     excludes the cumulative effect of changes in accounting principles.
(2)  The  calculation  of this ratio of earnings to fixed  charges  reflects the
     addition of the income from  discontinued  operations  before the provision
     for income tax component.
</FN>
</TABLE>

                                     - 32 -

<PAGE>

<PAGE>
<TABLE>
                                                                                                        EXHIBIT 12(b)
                 Aon Corporation and Consolidated Subsidiaries
                   Combined With Unconsolidated Subsidiaries
           Computation of Ratio of Earnings to Combined Fixed Charges
                         and Preferred Stock Dividends



                                                                           Years Ended December 31,
                                                      --------------------------------------------------------------
(millions except ratios)                                   1996         1995         1994         1993       1992(1)
                                                      --------------------------------------------------------------


Income from continuing operations before
<S>                                                   <C>          <C>          <C>          <C>          <C>
     provision for income tax                         $   445.6    $   458.0    $   397.0    $   331.6    $   179.1

Add back fixed charges:

Interest on indebtedness                                   44.7         55.5         46.4         42.3         41.9

Interest on ESOP                                            4.3          5.3          5.9          6.5          6.9

Portion of rents representative of
     interest factor                                       28.6         21.4         28.7         26.1         19.2
                                                      ----------   ----------   ----------   ----------   ----------
Income as adjusted                                    $   523.2    $   540.2    $   478.0    $   406.5    $   247.1
                                                      ==========   ==========   ==========   ==========   ==========

Fixed charges and preferred stock dividends:

Interest on indebtedness                              $    44.7    $    55.5    $    46.4    $    42.3    $    41.9

Preferred stock dividends                                  28.7         37.5         48.4         47.5         20.3
                                                      ----------   ----------   ----------   ----------   ----------

Interest and dividends                                     73.4         93.0         94.8         89.8         62.2

Interest on ESOP                                            4.3          5.3          5.9          6.5          6.9

Portion of rents representative of
     interest factor                                       28.6         21.4         28.7         26.1         19.2
                                                      ----------   ----------   ----------   ----------   ----------

Total fixed charges and preferred
     stock dividends                                  $   106.3    $   119.7    $   129.4    $   122.4    $    88.3
                                                      ==========   ==========   ==========   ==========   ==========

Ratio of earnings to combined fixed
     charges and preferred stock dividends                  4.9          4.5          3.7          3.3          2.8
                                                      ==========   ==========   ==========   ==========   ==========

Ratio of earnings to combined fixed
charges and preferred stock dividends (2)                   5.2          5.8          4.8          4.5          4.1
                                                      ==========   ==========   ==========   ==========   ==========
<FN>
(1)  Income  from  continuing  operations  before  provision  for  income  taxes
     excludes the cumulative effect of changes in accounting principles.
(2)  This  calculation  of ratio of  earnings  to  combined  fixed  charges  and
     preferred  stock  dividends  reflects  the  addition  of  the  income  from
     discontinued operations before the provision for income tax component.
</FN>
</TABLE>

                                     - 33 -
<PAGE>


BROKERAGE AND CONSULTING
As  the  world's  fastest-growing  global  insurance  brokerage  and  consulting
services  organization,   Aon  Group  is  combining  its  collective  knowledge,
technological expertise and global distribution  capabilities to provide clients
with cost-effective, value-added solutions.

In the rapidly changing, consolidating insurance industry, Aon pursues a sharply
focused strategy, concentrating more of its resources in insurance brokerage and
consulting.  Consistent with our strategy,  we acquired Bain Hogg Group plc last
October and, in early 1997, we completed  the merger with  Alexander & Alexander
Services Inc. These  companies  provide Aon with enhanced  resources,  access to
more insurance markets and a wider range of specialist  capabilities.  Together,
we provide our clients with creative insurance and consulting  solutions through
local  representation  supported by a network of more than 400 owned  offices in
some 60 countries.

                                     - 6 -
<PAGE>

OPERATIONS REVIEW
Aon Group comprises four major operating units: Aon Risk Services, Aon Specialty
Group,  Aon Re Worldwide  and Aon  Consulting  Worldwide.  Despite  increasingly
competitive market  conditions,  Aon Group had good growth and earnings in 1996,
through its  acquisition  program and internal growth  initiatives.  The company
generated  major new business and maintained high retention rates by focusing on
strategies to address all of our client segments (global accounts, middle market
and small commercial business). To counter the industry's pricing pressures, the
company is reducing  operating  costs through  consolidation  and elimination of
redundancies,  and increasing  efficiency while maintaining its high standard of
services.  By focusing on specialized  lines of business and our  interdependent
strategy,  the company has improved its ability to offer insurance solutions and
distribution on a global basis.

OPPORTUNITIES
Aon Group differentiates itself through a niche focus on industry
and  product  specializations,  by its  ability  to  attract  and  maintain  top
professionals,  and its unmatched  worldwide  distribution  capabilities.  Aon's
culture enables synergies to develop among insurance and reinsurance  brokerage,
risk management and consulting services.  Through our collective  organizations,
Aon Group sees a number of attractive, long-term growth opportunities: enhancing
its insurance management services to commercial and industrial organizations and
insurance  underwriting/distribution  organizations;  increasing its presence in
international  markets and emerging markets;  bringing capital markets expertise
and  resources  to  our  clients;  and  developing  and  implementing   advanced
technology applications.

OUTLOOK
The  intermediary  role is no longer confined  solely to obtaining  coverage for
clients.  Instead, our industry is consolidating into single-source providers of
insurance and reinsurance  brokerage,  consulting services and funding solutions
to  access  non-traditional  insurance  capital.  To  adapt  to this  change,  a
brokerage and  consulting  organization  must become  integral to the process of
managing and transferring  risk. As our diverse client base demands solutions to
increasingly  complex  risks,  Aon Group  provides a complete  approach  to risk
management, offering services beyond traditional risk-transfer to include access
to alternative  markets.  The company is well positioned to address the changing
needs of the  insurance  marketplace  by offering  value-added  risk  management
advice, innovative risk-transfer solutions, and thorough,  reliable knowledge of
global markets and local customs.

                                     - 7 -
<PAGE>
BROKERAGE AND CONSULTING


Services for Today and Tomorrow

Aon Group focuses on providing an expanding  range of insurance  and  consulting
services, beyond brokerage, to meet the demands of our clients.Our mission is to
continue  being  the  preeminent  provider  of risk  management,  insurance  and
reinsurance  brokerage and consulting  services  delivered  through an extensive
worldwide network of local offices.

In cooperation with our clients, we are dedicated to developing innovative ideas
and  solutions  to address risk  management  issues.  Through an  interdependent
strategy, Aon's expert teams work to deliver seamless, consistent,  high-quality
service to meet our  clients'  ever-changing  needs.  Our  clients are large and
small,  some are global and some are local.  Directed by the goal of putting the
client first,  Aon focuses its vast global  resources  through local offices and
account executives, thereby delivering the best of Aon to every client, anywhere
in the world.

                                     - 8 -
<PAGE>

ENHANCED GLOBAL PRESENCE
Outside  the  United  States,  London is the  international  focal  point of the
insurance  and  reinsurance  marketplace.  With the  addition  of Bain  Hogg and
Alexander & Alexander,  Aon is the leading  specialist  broker in London.  Aon's
U.K.-based  reinsurance  and specialty  brokerage  companies,  Nicholson  Jenner
Leslie, Bain Hogg International and Alexander Howden, operate under the combined
name Aon Group  Limited.  As the  preeminent  London  broker,  Aon Group Limited
places  reinsurance and specialty  business into Lloyd's,  the London market and
worldwide  markets.  The  company is involved in key  specialty  areas,  such as
aviation,  energy, financial institutions,  marine, and directors' and officers'
liability.  The  inclusion of Bain Hogg and  Alexander  Howden adds  significant
depth to the company's  resources,  particularly  in  reinsurance,  accident and
health, construction, energy, international property and professional indemnity.

In addition to an enhanced  London market  presence,  the additions of Bain Hogg
and Alexander & Alexander  significantly  expand Aon's  capabilities,  depth and
geographic reach of its global insurance and consulting services. Overall, these
combinations   solidify  Aon's  position  as  one  of  the  premier   insurance,
reinsurance  and specialty  brokers in the world.  Aon is a market leader in the
following  retail  brokerage  markets:  the United States,  the United  Kingdom,
Australia,   Asia,  Canada,   Mexico,  The  Netherlands  and  New  Zealand.  The
combinations also  significantly  strengthen Aon's brokerage presence in Africa,
France, Germany, Latin America and the Middle East. The consulting businesses of
Alexander & Alexander  add further  depth to Aon's  integrated  human  resources
consulting operations and its global market position, particularly in the United
States, the United Kingdom, Australia and Canada.

As an example of our overall service and distribution  capabilities,  Aon offers
premium  financing  products  to the  commercial  clients of Aon Group and other
independent  organizations.  Also, as part of Aon's  services to the  automotive
industry,  our  finance  company  acts  principally  as a  servicer  of  finance
receivables  and  provides  all the key  elements  to assist auto  retailers  in
establishing captive finance companies.

                                     - 9 -
<PAGE>

BROKERAGE AND CONSULTING GEOGRAPHIC PRESENCE

Argentina            Hong Kong                      Russia
Aruba                Hungary                        Saipan
Australia            India                          Singapore
Austria              Indonesia                      Slovak Republic
Bahrain              Ireland                        Solomon Islands
Belgium              Italy                          South Africa
Bermuda              Japan                          South Korea
Brazil               Kenya                          Spain
Canada               Lithuania                      Swaziland
Chile                Luxembourg                     Sweden
China                Malawi                         Switzerland
Colombia             Malaysia                       Taiwan
Czech Republic       Malta                          Thailand
Denmark              Mexico                         Turkey
Estonia              The Netherlands                Uganda
Fiji                 The Netherlands Antilles       United Arab Emirates
Finland              New Zealand                    United Kingdom
France               Nigeria                        United States
Germany              Norway                         Venezuela
Greece               Philippines                    Vietnam
Guam                 Poland                         Zimbabwe
                     Portugal

The two pie charts on the top of page 11 show the 1996  brokerage and consulting
services  revenue and pretax  income  (before  special  charges)  by  geographic
segmentation.  Revenue from United States,  Europe, and rest of world represents
64%,  30%, and 6%,  respectively,  of the 1996 total  brokerage  and  consulting
revenue.  Pretax income from United States, Europe, and rest of world represents
64%,  30%, and 6%,  respectively,  of the 1996 total  brokerage  and  consulting
pretax income.

Aon RISK SERVICES

OVERVIEW
Aon Risk  Services  (ARS) is Aon's global  retail  insurance  brokerage and risk
management  services company.  The combination of ARS with the retail operations
of Alexander & Alexander  and Bain Hogg,  provides  Aon with an enhanced  retail
distribution network.

SERVICES
Through its worldwide  distribution system, ARS provides complete risk services,
including  insurance   placement,   specialized   brokerage  services,   program
development and administration,  premium financing services, risk management and
loss-control consulting. ARS focuses its efforts on industry specialties such as
aviation,  construction,  credit  insurance,  energy,  entertainment,  financial
institutions  and marine,  as well as specific  product  coverages  that include
accident and health, directors' and officers' liability, international property,
workers'  compensation,  and errors and omissions  coverages for major law firms
and other professional organizations.

MARKETS
ARS  provides  insurance  management  solutions  to targeted  markets in varying
industries.  Aon's resources are delivered by local account executives to global
and diverse  clients,  encompassing  large  corporate,  middle-market  and small
commercial enterprises.

STRENGTHS
Market  demand  has  shifted  from  "insurance  buying"  to  financial  and risk
management,  where  knowledge-based  solutions  are at a  premium.  Through  its
proprietary  Knowledge Network,  ARS combines global knowledge and experience to
offer  value-added   solutions.   As  a   non-hierarchical,   highly  responsive
organization,  ARS adds  greater  value  through its  targeted  focus,  industry
experience, local expertise and interdependent network of company resources.

STRATEGIES
ARS will  continue  to create  expert  groups  focused on  developing  specialty
product  coverages,  such as  workers'  compensation,  disability  and  employee
services.  ARS anticipates growing opportunities in offering services to support
banks and other financial  institutions as they enter the insurance market.  The
company is further  expanding  the global reach of several  specialty  practices
such as construction, energy and health care.



Aon SPECIALTY GROUP

OVERVIEW
Aon Specialty Group (ASG) delivers  highly  specialized  insurance  products and
services for professional groups, service businesses,  governments,  health-care
providers and  commercial  organizations.  It also provides  custom  services in
managing   general   underwriting   and   wholesale   brokerage   for  insurance
organizations.

SERVICES
For insurance companies, ASG provides underwriting management skills, claims and
risk management expertise,  and third-party  administration  services. It serves
agents and brokers  through a network of  underwriting  managers  and  wholesale
brokerage operations,  providing access to markets for specialized business. For
individuals  and  businesses,  it provides  affinity  products for  professional
liability,  life and personal lines.  The Aon Healthcare  Alliance unit brings a
fully integrated line of Aon services to health-care providers.

MARKETS
ASG is a source of  alternative  distribution  for the  products and services of
both Aon and the insurance  markets it  represents.  Clients  include  insurance
companies, individual insurance agents and brokers, individual professionals and
businesses such as health care providers.  Ongoing  soft-market  conditions will
make certain insurance products too costly for traditional distribution sources,
resulting in increased opportunities for Aon's alternative distribution methods.

STRENGTHS
ASG brings an innovative niche focus to the industry,  concentrating on thorough
knowledge  of clients'  profession  or industry.  It excels at  multiple-channel
distribution  systems,  state-of-the-art  products for specific  industries  and
professionals,  and cost-effective delivery of products and services. ASG is the
largest program administrator for professional  liability,  with strong emphasis
on accounting, law and health care.

STRATEGIES
ASG  is  creating  a  new  program  business  devoted  exclusively  to  national
associations.  Using existing back-room capabilities, the new unit will focus on
the particular needs of associations  and their members.  Also, ASG has recently
established  a network to provide an  exchange of people,  ideas and  technology
that facilitates global affinity business growth.


Aon RE WORLDWIDE

OVERVIEW
Aon's  reinsurance  brokerage  activities  are organized  under Aon Re Worldwide
(ARW).  With the  additional  reinsurance  business of Alexander & Alexander and
Bain Hogg, ARW is a global leader in the  reinsurance  and specialist  brokerage
industry.

SERVICES
ARW provides  clients with  reinsurance  placement,  alternative  risk services,
captive management services and catastrophe information  forecasting.  It offers
reinsurance  expertise  in niche  industries,  including  aviation,  marine  and
energy, as well as in specialty lines such as professional liability, directors'
and officers' liability, errors and omissions, and excess and surplus lines. ARW
provides  in-depth  analysis of clients'  exposures and alternative  reinsurance
options, using sophisticated security and risk portfolio analysis.

MARKETS
ARW has a strong  global  presence in most of the major  insurance  markets.  To
complement  its market  leadership in the United States and the United  Kingdom,
ARW is  strengthening  its presence in many of the developing  regions,  such as
Latin  America and the  Pacific.  Its primary  clients are global,  national and
regional  insurance  companies,   reinsurance  companies,   Lloyd's  syndicates,
affinity and risk retention groups.

STRENGTHS
ARW's  approach is designed  to provide  the best  global  brokerage  expertise,
market  intelligence  and analytical  tools  available so their clients can make
informed   buying   decisions.   Through  a  combination  of  product  line  and
geographical expertise,  including significant presence in the United States and
London,  ARW  provides  clients  with  efficient  and  cost-effective  means  of
reinsuring their exposures.

STRATEGIES
ARW continues to make significant investments in its technological capabilities.
The company provides a unique combination of risk management knowledge, software
technology  and   engineering   expertise  to  provide   clients  with  advanced
catastrophic  risk management  services.  Through the development of Aon Capital
Markets,  ARW is drawing upon Aon's collective expertise and worldwide resources
to access non-traditional insurance capital from the global capital markets.


Aon CONSULTING WORLDWIDE

OVERVIEW
Aon  Consulting  Worldwide  (ACW)  is  one  of the  world's  largest  consulting
organizations,  offering fully integrated human resources  consulting  services.
Its innovative professionals specialize in linking people strategies to business
initiatives for improved  performance.  ACW's approach  ensures that our clients
are effectively attracting, retaining and utilizing their people "assets."

SERVICES
ACW offers services in employee  benefits,  human  resources,  compensation  and
change  management.  Specific  services include  organizational  analysis and HR
strategic  planning,  job  design  and  competency  modeling,   recruitment  and
selection,  compensation  and reward  systems,  benefits  design and management,
training and development, HR compliance and risk management,
individual and organizational change management.

MARKETS
ACW serves small,  mid-size and large  corporations  by integrating its services
into all  aspects of the  client's  human  resources  programs.  Focusing on the
increasing demand for outsourcing  solutions,  ACW targets emerging  businesses,
IPOs,  recent mergers or acquisitions  and corporations  that are  reengineering
staff functions.  ACW is well-positioned to provide its services to a variety of
industries.  For  example,  the  company is the  automotive  industry's  primary
provider of employee selection services such as screening, testing and hiring.

STRENGTHS
ACW offers companies an objective,  global perspective that provides  integrated
solutions  and  consistent   administration,   ensuring   effective  design  and
implementation of client programs. To enhance efficiencies,  ACW creatively uses
technology such as computerized testing systems and voice response systems.

STATEGIES
ACW is  targeting  a  larger  share of the  global  human  resources  management
marketplace.  Rather than making large capital  investments  in  "administration
centers,"  ACW  creates  consulting  and  administration  programs  tailored  to
individual  clients' needs.  Opportunities  also exist by providing  services to
meet the growing  demand for  stock-based  compensation  programs and innovative
reward systems.

                                     - 10 & 11 -
<PAGE>

INSURANCE UNDERWRITING
Aon's  insurance  underwriting  businesses  are focused on meeting the  changing
needs of  individuals  throughout  the world by  offering  distinctive  products
distributed through directly owned and operated networks.

In today's unpredictable world, Aon's  well-established  insurance  underwriting
companies  provide their  policyholders  with security and confidence  about the
future. These underwriting companies focus on markets in North America,  Europe,
Latin  America  and the Pacific by  providing  a variety of  consumer  insurance
products, including accident and health coverage, traditional life insurance and
extended  warranties.  Since  1919,  Combined  Insurance  Company of America has
maintained a leading position in the supplemental  insurance market by providing
accident,  health and life  coverages  directly to individual  consumers.  Aon's
specialty   property/casualty   underwriters,   Virginia  Surety  and  its  U.K.
affiliate,  London General Insurance, serve consumers with a variety of extended
warranty coverages.

                                     - 12 -
<PAGE>

OPERATIONS REVIEW

In early 1996,  Aon refined its insurance  underwriting  focus by completing the
sales of two of its insurance underwriting companies and its North American auto
credit insurance business. Aon's insurance underwriting business now consists of
Combined  Insurance  Company  of  America  (CICA) and  Virginia  Surety  Company
(VSC)/London General Insurance (LGI). These companies  demonstrate strong market
positions  in  their  primary  niche  businesses,  superior  capitalization  and
liquidity, and generate significant cash flow.

For the year, CICA's operating performance reflected modest revenue growth while
maintaining strong margins,  as it expanded into worksite  marketing.  VSC/LGI's
1996 results  continued to produce strong global revenue and earnings  growth by
gaining  new  accounts  and  enhanced  distribution  relationships  through  Aon
Warranty  Group (AWG),  one of the world's  largest  independent  marketers  and
administrators  of consumer  extended  warranties.  AWG's  service  revenues and
income are included in the insurance brokerage and consulting line of business.


OPPORTUNITIES

CICA is a foundation of Aon's insurance underwriting business through
a directly owned and managed global network of more than 7,500  exclusive  sales
agents.  Its key growth  strategy is to apply its extensive  sales expertise and
management  techniques  to a new worksite  marketing  program,  capitalizing  on
opportunities  in this  emerging  distribution  channel for  insurance.  CICA is
approaching this market on a direct basis,  using dedicated account  executives,
and by partnering  with existing Aon Group  brokers and  consultants  to offer a
broad range of voluntary benefits.

The operations of VSC/LGI and Aon Warranty Group anticipate  attractive business
opportunities resulting from their link with the Aon Group companies.  VSC/LGI's
growth will come from new products, such as home warranty programs, enhancements
in established  consumer markets, and expansion in growing markets such as Asia,
the Pacific and South America.

OUTLOOK

CICA is a strong market leader in its primary niche  business with the potential
to enhance  premium growth through its worksite  sales  strategy.  The company's
extensive  distribution  network of career sales  people,  who sell  directly to
individuals  and families,  gives it a distinct  competitive  advantage.  CICA's
focus  on the  supplemental  marketplace  enables  it to  expand  premiums  on a
profitable basis.

The extended  warranty market is expected to continue  growing as more expensive
and complex  consumer  goods are  introduced  worldwide.  VSC/LGI has attractive
global  growth  prospects for  additional  warranty-related  services  which are
strengthened through synergies with Aon Group.

                                     - 13 -
<PAGE>

Insurance Underwriting Geographic Presence
Australia
Belgium
Canada
France
Germany
Ireland
Japan
Mexico
The Netherlands
New Zealand
Spain
United Kingdom
United States


The pie charts on the top of page 15 show the 1996  revenue  and pretax  income
(before special  charges) for total insurance  underwriting  and the revenue for
direct  sales  and  extended  warranty,   specialty,  and  other  by  geographic
segmentation.

Total Insurance Underwriting Revenue
As shown  on the pie  chart on the top on the left  side,  revenue  from  United
States, Europe, and rest of world represents 73%, 17%, and 10%, respectively, of
the 1996 total insurance underwriting revenue.

As shown on the pie  chart  below the  revenue  chart on the left  side,  pretax
income from United States,  Europe,  and rest of world  represents 71%, 15%, and
14%, respectively, of the 1996 total insurance underwriting pretax income.

Direct Sales Revenue
As shown in the pie chart on the top in the middle,  revenue from United States,
Europe,  and rest of world  represents 69%, 15%, and 16%,  respectively,  of the
1996 total direct sales revenue.

Extended Warranty, Specialty and Other Revenue
As shown in the pie  chart on the top on the right  side,  revenue  from  United
States, Europe, and rest of world represents 78%, 20%, and 2%, respectively,  of
the 1996 total extended warranty, specialty and other revenue.


Combined Insurance Company of America

Overview
For more than 77 years,  Combined Insurance Company of America (CICA) has been a
leading underwriter of supplemental accident, health and life insurance products
to individuals  and small  businesses.  CICA's  business is conducted  primarily
through  a direct  sales  division  that  distributes  its  products  through  a
7,500-strong sales force of career insurance agents.

Services
CICA insures more than five million individual  policyholders  worldwide.  Major
product lines include disability income,  supplemental accident and health and a
basic  portfolio of life  insurance  products.  CICA's  products  are  primarily
indemnity-type, paying fixed benefits directly to the policyholder. The products
provide  additional  income that the  policyholders  can use to supplement their
existing  medical  coverage or maintain  their  lifestyle  should an accident or
sickness  cause  them  to  become  disabled  or  hospitalized.   Life  insurance
protection is offered  through a basic  portfolio of traditional  whole life and
term life coverages.

Markets
CICA is a unique  organization  focused on providing basic insurance products to
customers not served by most insurers. Many of CICA's insureds are self-employed
or work for small  firms  with  limited  insurance  plans.  The  company  writes
supplemental  insurance  policies  primarily  in  North  America,  as well as in
Europe, Australia and New Zealand. In addition to its traditional business, CICA
is  expanding  its product  distribution  through  payroll  deduction,  worksite
marketing programs.

Strengths
CICA's  strengths  are due to a unique  combination  of factors.  These  factors
include:  (i) a loyal  policyholder  base  comprising  more  than  five  million
individuals  worldwide;  (ii)  operations in major  countries  around the world;
(iii)  a line  of  fixed  indemnity  products  at  affordable  prices  which  is
attractive  to the  policyholder  base  in each  country;  (iv)  utilization  of
opportunities for add-on sales that are created by the marketing approaches; (v)
a broad spread of risk resulting  directly from the  distribution  process;  and
(vi) an effective and  well-managed  global network of more than 7,500 exclusive
sales agents.  The  combination of these factors results in stable cash flow and
earnings with the opportunity for continued growth.

Strategies
CICA is  expanding  the  distribution  of  supplemental  products  to a worksite
marketing system. In this environment,  CICA is taking advantage of the benefits
of payroll deduction as a premium collection method. In addition,  the company's
traditional   direct  sales  business  is  offering  larger  scale  policies  to
individuals,  with the option of payment through  convenient  monthly electronic
funds transfer.


Virginia Surety/London General

Overview
Aon's specialty,  property and casualty underwriting companies,  Virginia Surety
Company  in North  America  and  London  General  Insurance  Company  in  Europe
(VSC/LGI),  are among the world's  largest  underwriters  of  consumer  extended
warranties.  Through Aon Warranty  Group  (AWG),  the company  offers  worldwide
administrative services,  compliance support,  merchandising,  direct marketing,
training and one of the largest service networks in the world.

Services
The company  designs  consumer  extended  warranty  programs  tailored to client
needs, including the development of contract terms,  conditions and pricing. The
company provides  extended warranty  coverages for new and used autos,  consumer
electronics and appliances,  home warranty, and specialty insurance products for
cellular phones, credit card enhancements,  travel, involuntary unemployment and
consumer product property insurance.

Markets
Extended warranty products are distributed through auto dealers,  manufacturers,
distributors  and retailers of major  worldwide  consumer  product and financial
institutions,  associations and affinity groups, who offer the warranties to the
end consumer.

Strengths
Leveraging  its market  experience  with its  extensive  actuarial  database  of
extended warranty service contracts,  the company monitors product profitability
and  success.  Extended  warranty  policies  are  supplemental  products and not
catastrophic in nature. The company's knowledge,  geographic reach, flexibility,
financial  stability  and  commitment  to the  client  and their  consumers  are
unparalleled in its markets.

Strategies
VSC/LGI will continue to thrive in  established  markets  through  expansion and
acquisitions  while adapting existing programs in emerging markets.  Through Aon
Warranty  Group's  interdependent  initiatives  with Aon Group, the company will
further increase its worldwide market presence.

                                     - 14 & 15 -
<PAGE>

MANAGEMENT'S ANALYSIS OF OPERATING RESULTS AND FINANCIAL CONDITION

CONSOLIDATED

GENERAL
At the beginning of second quarter 1996, Aon sold two of its domestic  insurance
underwriting subsidiaries, Union Fidelity Life Insurance Company (UFLIC) and The
Life  Insurance  Company of Virginia  (LOV) (see note 3). The aftertax  proceeds
from the sales were $1.2 billion.  The sales resulted in a $21 million  aftertax
gain  on  sale.  Consequently,  UFLIC  and LOV  results  are  classified  in the
consolidated  statements of income as discontinued  operations.  For purposes of
the following  consolidated  results discussions (1996 compared to 1995 and 1995
compared  to  1994),  comparisons  against  prior  years'  results  are based on
continuing  operations.

Also in second  quarter 1996,  Aon completed the sale of its North American auto
credit underwriting and distribution  operations,  including the distribution of
auto  extended  warranties  throughout  North  America.  The  extended  warranty
products will continue to be underwritten by Aon's  subsidiary,  Virginia Surety
Company,  Inc. Results of the auto credit underwriting business written prior to
the sale are expected to continue to run off as planned.

In fourth  quarter 1996, Aon acquired Bain Hogg Group plc (Bain Hogg), a leading
insurance broker in the United Kingdom and Asia, for approximately $260 million.

SPECIAL CHARGES
In second  quarter 1996,  Aon recorded a $30 million  pretax charge ($19 million
after tax or $0.18 per share) related to a voluntary  early  retirement  program
for all eligible employees of Aon's United States (U.S.) operating  subsidiaries
and similar  programs in parts of Europe.  Approximately  450 employees,  60% of
whom  were in the U.S.,  participated  in the early  retirement  program.  These
charges were reflected in commissions and general  expenses in the  consolidated
statements of income.

In  fourth  quarter  1996,  Aon's  management  committed  to a  formal  plan  of
restructuring  Aon's European  brokerage  operations and recorded pretax special
charges of $60  million  ($40  million  aftertax  or $0.36 per share)  primarily
relating to this  activity.  These  charges were  reflected in  commissions  and
general expenses in the  consolidated  statements of income.  The  restructuring
charges include $32 million relating to consolidating real estate space and data
processing  facilities  and  equipment,  primarily in Europe,  in order to merge
Aon's existing  operations  with those of Bain Hogg. The  restructuring  charges
related to  consolidating  real  estate  space are  expected to be paid out over
several years. Special charges for workforce reductions, involving approximately
300  positions,   were  $12  million.   Terminations  resulting  from  workforce
reductions  are planned to take place  within one year.  Costs  associated  with
special  assessments to be paid relating to the reconstruction of the Lloyd's of
London  insurance  market were $11  million.  The  remaining  charges  primarily
reflect Aon's exit from certain U.S. insurance  underwriting  markets. In fourth
quarter 1996,  pretax special charges related to the  restructuring  of existing
operations were principally associated with the Bain Hogg acquisition.

REVENUE AND INCOME BEFORE INCOME TAX
CONSOLIDATED RESULTS FOR 1996 COMPARED TO 1995

Total revenues  amounted to $3.9 billion,  an increase of 12%. This increase was
primarily due to the growth in brokerage  commissions  and fees  resulting  from
business  combination  activity and internal growth.  Brokerage  commissions and
fees increased 16% to $1.9 billion.

Premiums earned of $1.5 billion increased 7% in 1996. Extended warranty premiums
earned increased $110 million or 40%, reflecting a higher volume of new business
in both the electronic and appliance lines and the auto extended  warranty line.
The continued phase-out of certain specialty liability programs partially offset
this increase. There was also continued modest growth in direct sales business.

Net  investment  income of $384  million  increased  17% for the year  primarily
attributable to investment income associated with the proceeds from the sales of
UFLIC and LOV. The pretax investment portfolio yield declined resulting from the
investment of new cash flows in lower yielding investments.  Investable funds to
continuing  operations grew  approximately $1 billion during 1996. This increase
was  attributable  to the use of the sales proceeds and brokerage cash flows, as
well as strong growth in extended warranty business. In addition, net investment
income from  insurance  brokerage  and  consulting  operations  increased to $83
million in 1996 from $76  million  the prior year,  primarily  due to  brokerage
acquisition activity.

Net realized investment gains were $8 million in 1996 compared to $13 million in
1995. Revenue excluding realized  investment gains increased 12% or $428 million
when compared to 1995.

                                     - 17 -
<PAGE>

Commissions and general expenses  (excluding interest expense) increased 17% for
the year  primarily  due to  growth in the  brokerage  businesses.  Benefits  to
policyholders  increased  13% when  compared to 1995,  primarily due to a higher
volume of new extended warranty business.  This increase was partially offset by
lower claims paid on auto credit  business  that has been in runoff since second
quarter 1996. It is  anticipated  that this business will continue to run off as
planned.  Interest  expense  increased 8%.  Amortization of  intangibles,  which
excludes deferred policy  acquisition costs (DPAC),  decreased $6 million or 7%,
reflecting fully amortized intangibles,  particularly in the insurance and other
services brokerage business,  and offset in part by continued growth in acquired
businesses.

Overall,  benefit and expense margins for the insurance underwriting segment did
not suggest any significant  shift in operating  trends in 1996.  Total benefits
and expenses  increased 14% or $435 million over 1995. The increase reflects the
inclusion of pretax special charges of $90 million. Total benefits and expenses,
excluding the 1996 special charges, increased 12% over 1995.

Income before  income tax decreased $12 million or 3% in 1996,  primarily due to
the  inclusion of special  charges.  Excluding  special  charges,  income before
income tax increased 17% or $78 million,  largely due to growth in the insurance
brokerage and consulting segment related to business  combination  activity,  as
well as the earnings  associated with the proceeds from the sale of discontinued
operations.

Fourth  quarter  revenue  increased  20% to $1.1 billion when  compared to 1995,
primarily  reflecting  brokerage  business  combination  activity  and  internal
growth. Total benefits and expenses, excluding special charges, increased 18% to
$938 million for the quarter.  Pretax income decreased $26 million or 27% to $71
million. The decrease in pretax earnings reflects special charges of $60 million
recorded in fourth quarter 1996.  Excluding  special  charges,  pretax  earnings
increased 35% when compared to fourth quarter 1995.


CONSOLIDATED GEOGRAPHIC DATA

(millions)        Years ended December 31   1996     1995     1994
- -------------------------------------------------------------------
Revenue:
 United States                           $ 2,646  $ 2,449   $2,208
 Europe                                      929      769      635
 Rest of World                               313      248      198
- -------------------------------------------------------------------
Total Revenue                            $ 3,888  $ 3,466   $3,041
- -------------------------------------------------------------------
Income Before Income Tax:
 United States                           $   357  $   328   $  279
 Europe                                      110       81       78
 Rest of World                                69       49       40
- -------------------------------------------------------------------
 Income before income tax
  excluding special charges                  536      458      397
 Special charges*                             90       --       --
- -------------------------------------------------------------------
Total Income Before Income Tax           $   446  $   458   $  397
===================================================================
Identifiable Assets
 (continuing operations):
  United States                          $ 8,825  $ 6,427   $6,086
  Europe                                   3,921    2,921    2,343
  Rest of World                              977      679      494
- -------------------------------------------------------------------
Identifiable Assets  at December 31      $13,723  $10,027   $8,923
===================================================================

*Of the $90  million  special  charges in 1996,  $35 million  were U.S.  and $55
million were European.

U.S.  revenues  increased  8% in 1996  compared  to 1995,  primarily  reflecting
internal growth and brokerage  acquisition  activity.  U.S. pretax income before
special  charges  increased  9% over prior year,  primarily  on the  strength of
acquisition activity and overall expense controls.

Total  non-U.S.  revenue  increased 22% in 1996 to $1.2 billion  reflecting  the
improvement in brokerage  revenue from  acquisitions and internal  growth.  1996
European  revenue of $929 million rose 21%,  while all other  non-U.S.  revenues
increased 26% when compared to prior year.

Non-U.S.  pretax income before  special  charges  increased 38% to $179 million.
Pretax income before  special  charges from  European  operations  increased 36%
while all other non-U.S.  pretax income before  special  charges rose 41% or $20
million in 1996.

                                     - 18 -
<PAGE>

REVENUE AND INCOME BEFORE INCOME TAX
CONSOLIDATED RESULTS FOR 1995 COMPARED TO 1994
Total revenue  amounted to $3.5 billion in 1995,  an increase of 14%.  Brokerage
commissions  and fees  increased  19% to $1.7 billion  resulting  from  business
combination  activity and internal growth.  Premiums earned were $1.4 billion or
8%  above  1994.  A higher  volume  of new  business  in the  extended  warranty
electronic and appliance lines was partially  offset by the continued  phase-out
of certain specialty liability  programs.  Net investment income of $329 million
increased 28% for the year. Higher levels of short-term  investments,  primarily
due to brokerage  acquisition  activity and internal growth,  contributed to the
increase.

Commissions and general expenses  (excluding interest expense) increased 15% for
the year  primarily  reflecting  brokerage  growth.  Benefits  to  policyholders
increased  12% when  compared to 1994  primarily  due to a higher  volume of new
extended  warranty  business.  Partially  offsetting  this  increase  were lower
benefits, related to the runoff of certain specialty programs.  Interest expense
increased 14%  reflecting  higher levels of short-term  borrowings for the year.
Total  benefits and expenses  increased 14% over 1994.  Income before income tax
increased by 15% or $61 million due largely to growth in the insurance brokerage
and  consulting  businesses,  and to a lesser  extent,  growth in the  insurance
underwriting extended warranty business and the continued favorable phase-out of
certain specialty liability underwriting programs.

MAJOR LINES OF BUSINESS
GENERAL
In second  quarter 1996,  Aon reported an aftertax gain on sale of  discontinued
operations  of $21  million  related  to the  sales of UFLIC  and LOV.  Aon also
reported  pretax special  charges of $90 million in 1996 related  principally to
early retirement  programs and  consolidation  of global  brokerage  operations,
particularly in Europe.

For purposes of the major lines of business discussion, comparisons against 1995
results  exclude  the  discontinued   operations  and  the  special  charges.  A
discussion of  discontinued  operations  performance  follows the major lines of
business section.

INSURANCE BROKERAGE AND CONSULTING SERVICES
Beginning in 1996, Aon's retail brokerage and reinsurance and wholesale segments
were combined  into one segment  called  "Insurance  and other  services."  Also
included in this segment is revenue from  financing  services  operations  which
includes  service fees  received  from the  placement of insurance  premiums and
retail auto financing receivables with unaffiliated parties; this was previously
reported in the corporate  segment.  All prior period data has been reclassified
to conform to the 1996 presentation.

In 1996, Aon invested approximately $370 million in business combinations in its
brokerage and consulting  businesses.  These business combinations were financed
primarily  by internal  funds and the issuance of common  stock.  The major 1996
acquisitions  include:  Bain Hogg-a leading  insurance  brokerage company in the
United Kingdom and Asia;  Wesselhoeft Ahlers & Schues OHG-a retail brokerage and
consulting  operation in Germany;  and S. Mark Brockington & Associates,  Inc.-a
U.S.  retail  operation  specializing  in  providing  insurance  products to the
transportation industry.

INSURANCE  BROKERAGE AND CONSULTING  SERVICES

(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Revenue:
 Insurance and other services             $1,728   $1,477   $1,220
 Consulting                                  274      250      222
- -------------------------------------------------------------------
Total revenue*                             2,002    1,727    1,442
- -------------------------------------------------------------------
Operating expenses                         1,705    1,467    1,232
Amortization of intangibles                   40       48       47
- -------------------------------------------------------------------
Total expenses                             1,745    1,515    1,279
- -------------------------------------------------------------------
Income before income tax
 excluding special charges                   257      212      163
Special charges                               75       --       --
- -------------------------------------------------------------------
Income before income tax                  $  182   $  212   $  163
===================================================================
Identifiable assets  at December 31       $5,025   $3,343   $3,009
===================================================================

*Includes net investment  income,  primarily relating to fiduciary funds, of $83
million, $76 million and $48 million in 1996, 1995 and 1994, respectively.

Total 1996 brokerage and  consulting  services  revenue was $2 billion,  up 16%.
Acquisitions  accounted  for  approximately  one-half  of this  revenue  growth.
Excluding  the impact of  acquisitions,  revenue  and income  before  income tax
results demonstrated satisfactory growth given a very competitive environment.

Insurance and other  services  (retail,  reinsurance  and  wholesale  brokerage)
results were positively  impacted by  acquisitions,  especially the inclusion of
Bain Hogg in fourth  quarter 1996,  and good internal  growth,  particularly  in
non-U.S.  operations.  Insurance and other  services  retail  brokerage  results
continued to be influenced by highly  competitive  property and casualty pricing
in the U.S.  market.  Pretax  income  growth was slowed  primarily due to market
pressures experienced in the reinsurance brokerage business.

                                     - 19 -
<PAGE>
Included in insurance and other services  revenue are financing  service fees of
$35  million,  an increase of 37% over 1995.  In addition,  Aon  Warranty  Group
provided  warranty  marketing  and  administrative   services  to  the  warranty
underwriting operations. This activity generated revenue of $21 million in 1996.


In the consulting line of business,  1996 revenue increased 10% to $274 million.
Expansion of the integrated human resources  consulting programs  contributed to
this  improvement.  Limiting the growth of consulting  revenue and pretax income
was a decline in revenues in the automotive consulting operations. Measures were
taken to reduce costs in the  automotive  operations.

INSURANCE  BROKERAGE  AND CONSULTING SERVICES GEOGRAPHIC DATA

(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
 Revenue:
 United States                            $1,291   $1,202   $1,053
 Europe                                      599      452      353
 Rest of World                               112       73       36
- -------------------------------------------------------------------
Total Revenue                             $2,002   $1,727   $1,442
- -------------------------------------------------------------------
Income Before Income Tax:
 United States                            $  165   $  153   $  118
 Europe                                       76       56       47
 Rest of World                                16        3       (2)
- -------------------------------------------------------------------
Income before income tax
 excluding special charges                   257      212      163
Special charges                               75       --       --
- -------------------------------------------------------------------
Total Income Before Income Tax            $  182   $  212   $  163
===================================================================


U.S. revenue of $1.3 billion in 1996 was up 7% over 1995 while non-U.S.  revenue
increased  35%.  Total pretax  income was $257 million in 1996, up 21% from $212
million in 1995. U.S. pretax income was up 8% from 1995. Non-U.S.  pretax income
rose 56%,  partially  influenced by the fourth quarter 1996  acquisition of Bain
Hogg.

INSURANCE UNDERWRITING
The insurance  underwriting  line of business provides a variety of direct sales
life and  accident  and health  products,  and  extended  warranty  products  to
individuals.

INSURANCE UNDERWRITING

(millions)        Years ended December 31   1996     1995     1994
- -------------------------------------------------------------------
Revenue:
 Direct sales                             $1,030   $1,014   $  976
 Extended warranty and specialty             514      386      316
 Other                                       230      240      217
- -------------------------------------------------------------------
Total revenue                              1,774    1,640    1,509
- -------------------------------------------------------------------
Benefits to policyholders                    790      699      626
Operating expenses                           512      488      458
Amortization of DPAC
 and intangibles                             208      207      190
- -------------------------------------------------------------------
Total benefits and expenses                1,510    1,394    1,274
- -------------------------------------------------------------------
Income before income tax
 excluding special charges                   264      246      235
Special charges                               12       --       --
- -------------------------------------------------------------------
Income before income tax                  $  252   $  246   $  235
===================================================================

Identifiable assets  at December 31       $4,786   $3,736   $3,119
===================================================================


Revenue was $1.8 billion in 1996, up 8% from $1.6 billion in 1995.  Direct sales
business  grew  modestly,  with 1996  revenue up 2% to $1 billion as the company
continued to expand its product distribution through payroll deduction, worksite
marketing programs.  In general,  expense margins decreased while benefit levels
increased  slightly,  particularly in the extended  warranty line.  Direct sales
accident and health  business  maintained  its pretax margin in part due to good
general expense controls and strong  international health product sales. Certain
specialty  liability  programs and auto credit business  continued to be run off
profitably. Pretax income was $264 million in 1996, up 7% from $246 million last
year.

INSURANCE UNDERWRITING  GEOGRAPHIC DATA

(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Revenue:
 United States                            $1,287   $1,188   $1,105
 Europe                                      307      290      252
 Rest of World                               180      162      152
- -------------------------------------------------------------------
Total Revenue                             $1,774   $1,640   $1,509
- -------------------------------------------------------------------
Income Before Income Tax:
 United States                            $  187   $  180   $  172
 Europe                                       40       34       35
 Rest of World                                37       32       28
- -------------------------------------------------------------------
 Income before income tax
  excluding special charges                  264      246      235
 Special charges                              12       --       --
- -------------------------------------------------------------------
Total Income Before Income Tax            $  252   $  246   $  235
===================================================================

                                     - 20 -
<PAGE>

U.S.  revenue of $1.3 billion was up 8% in 1996 while  non-U.S.  revenue of $487
million  rose 8%  principally  due to improved  premiums  earned in the extended
warranty lines. Traditional life business in Europe and the Pacific continued to
run off as planned.  In addition,  there was a higher  volume of new business in
the appliance and  electronics  extended  warranty lines both  domestically  and
internationally.  U.S.  pretax  income rose 4% in 1996.  Non-U.S.  pretax income
increased  17%,  reflecting  reduced  expense  levels  pertaining to unit-linked
business,  which  was  sold  in late  1996  with no  significant  gain or  loss.

CORPORATE AND OTHER
Revenue  consists  primarily  of  investment  income on  insurance  underwriting
operations' capital and realized investment gains.  Insurance company investment
income is allocated to the  underwriting  segment  based on the invested  assets
which underlie  policyholder  liabilities.  Excess  invested  assets and related
investment income, which do not underlie these liabilities, are reported in this
segment.  Expenses  include  interest  and other  financing  expenses,  goodwill
amortization associated with insurance brokerage and consulting acquisitions and
corporate administrative costs.

CORPORATE AND OTHER

(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Revenue:
 Investment income on
  capital and other                       $  104   $   86   $   71
 Realized investment gains                     8       13       19
- -------------------------------------------------------------------
Total revenue                                112       99       90
- -------------------------------------------------------------------
Operating expenses                            20       27       29
Interest expense                              40       37       33
Amortization of intangibles                   37       35       29
- -------------------------------------------------------------------
Total expenses                                97       99       91
- -------------------------------------------------------------------
Income before income tax
 excluding special charges                    15       --       (1)
Special charges                                3       --       --
- -------------------------------------------------------------------
Income before income tax                  $   12    $  --   $   (1)
===================================================================
Identifiable assets  at December 31       $3,912   $2,948   $2,795
===================================================================


Revenue  increased  13% over 1995 to $112  million.  Realized  investment  gains
declined $5 million in 1996 when  compared to 1995.  Excluding  these gains from
both years,  revenue increased 21%, benefiting from investment income associated
with a portion of the proceeds  from the sales of UFLIC and LOV.

Pretax income  increased $15 million in 1996 largely due to  availability of the
sales proceeds.  Partially  offsetting this increase was a reduction in realized
investment gains.  Excluding realized  investment gains from both years,  pretax
income increased $20 million over 1995. In addition, financing costs and certain
goodwill  amortization related to acquisitions grew more slowly when compared to
the growth in revenue.

DISCONTINUED OPERATIONS
Discontinued   operations  are  composed  principally  of  capital  accumulation
products  and  direct  response  insurance  products.  Substantially  all of the
revenue and income before income tax,  generated from  discontinued  operations,
was U.S. Aftertax income on these businesses has been segregated as "Income From
Discontinued  Operations"  in the  consolidated  statements of income.  With the
completion  of the  sales of  UFLIC  and LOV on April  1,  1996,  there  were no
operating results from these discontinued operations going forward. In addition,
in second quarter 1996, a $21 million gain on sale of  discontinued  operations,
net of taxes, was recorded.

INCOME TAX AND NET INCOME
Net income for 1996 was $335 million or $2.87 per share compared to $403 million
or $3.48 per share in 1995.  Net income for fourth  quarter 1996 amounted to $46
million or $0.38 per share  compared to $93 million or $0.80 per share for 1995.
Dividends on the 8%, 6.25% and  redeemable  preferred  stock have been  deducted
from net income to compute earnings per share.

Operating income from continuing  operations before special charges and realized
investment  gains,  was $346 million or $2.97 per share in 1996 compared to $295
million or $2.49 per share in 1995. Aon's effective operating income tax rate on
continuing  operations  was  34.5% in 1996 and  33.7%  in 1995,  while  realized
investment gains were taxed at a 36% rate for both years.

Average shares  outstanding  for 1996 increased 1% primarily due to the issuance
of  common  shares  related  to  business  combinations  and the  conversion  of
preferred stock to common stock.

                                     - 21 -
<PAGE>
LIQUIDITY

Consistent with financial  statement  presentation,  the following cash flow and
financial position  discussion reflects the completion of the sales of UFLIC and
LOV in April  1996.  As a result of the sales,  the  consolidated  statement  of
financial position at December 31, 1996, and the related consolidated statements
of  stockholders'  equity and cash flows have been  significantly  impacted when
compared  to year-end  1995 and  year-end  1994.

Aon's operating subsidiaries anticipate there will be adequate liquidity to meet
their needs in the foreseeable  future.  Aon's liquidity needs are primarily for
servicing its debt and for the payment of dividends on stock  issues.  Dividends
from Aon's  subsidiaries are the primary source for meeting these  requirements.
There are certain  regulatory  restrictions  relating  to  dividend  capacity of
insurance  subsidiaries  that are discussed in note 8.  Insurance  subsidiaries'
statutory  capital and surplus at year-end  1996 again  exceeded the  risk-based
capital target set by the National  Association of Insurance  Commissioners by a
satisfactory  level. At December 31, 1996, Aon had short-term,  back-up lines of
credit available of $335 million.

Aon measures  capital  accumulation  product  asset and  liability  durations to
determine  its net  exposure to changes in  interest  rates.  Aon's  exposure to
interest-sensitive  products was substantially  diminished following the sale of
LOV   because   their   products   were   principally   interest-sensitive   and
investment-type.

Through the use of hedging programs utilizing derivative  financial  instruments
(derivatives)  (see note 11),  Aon  improved  its  overall  asset and  liability
duration  match and hedged fair values of its available for sale  portfolio.  In
administering its hedging programs, Aon performs analyses that have demonstrated
that  Aon  achieves  a high  degree  of  correlation.  The  businesses  of Aon's
operating  subsidiaries  continue  to provide  substantial  positive  cash flow.
Brokerage cash flow has been used  primarily for  acquisition  financing.  Given
Aon's fixed maturity  portfolio's  average life of 6.8 years, access to lines of
credit,  and an  uninterrupted  trend in Aon's  positive cash flow,  Aon expects
sufficient cash flow to meet both short-term and long-term cash needs.

Future  cash  flow  to  service  debt  and pay  dividends  was  enhanced  by the
completion  of the  sales of UFLIC  and LOV in 1996.  Sales  proceeds  generated
approximately  $1.2  billion  after taxes and other costs of sale.  The aftertax
proceeds  in excess of the  carrying  value of the  companies  sold  generated a
statutory gain at CICA, the parent company of UFLIC and LOV. In April 1996, CICA
dividended  $650  million of this gain to Aon.  CICA  reinvested  the  remaining
proceeds primarily in non-affiliated  assets. After meeting its routine dividend
and debt servicing requirements,  Aon used a majority of the remaining dividends
received  throughout the year to both reduce  short-term  debt and invest in the
operational segments of its businesses.

In early 1997,  Aon completed the merger with  Alexander and Alexander  Services
Inc. (A&A). The purchase price of  approximately  $1.2 billion was funded by the
issuance  of  commercial  paper,  internal  funds,  and the  issuance  of  trust
preferred capital securities (capital securities) (see note 8). Aon's management
anticipates  a  commitment  to a  restructuring  plan  primarily  related to its
brokerage  operations  in first  quarter  1997 given the  completion  of the A&A
acquisition.

Cash provided by operating  activities in 1996  decreased $255 million from 1995
to $355  million.  This  decrease  primarily  reflects  the  federal  income tax
payments  relating to the sales of UFLIC and LOV.  The tax payments are included
as a reduction in operating  activity  whereas the sales proceeds are treated as
investment  activity.  The remaining  decrease is partially  attributable to the
reduced return on the proceeds from discontinued operations.

Cash provided by investing  activities was $238 million in 1996, up $862 million
from 1995.  This  increase is primarily  attributable  to the sales of UFLIC and
LOV. Cash used for acquisition activity during 1996 was $342 million,  primarily
reflecting the Bain Hogg acquisition.

Cash  totaling  $301  million  was used in 1996 for  financing  activities.  Aon
repurchased  1.3  million  shares  of its  common  stock at a total  cost of $66
million.  In 1996, Aon purchased and retired  553,000 shares of its 8% preferred
stock at a total  cost of $14  million.  The  repurchase  of  capital  stock was
primarily  funded by a portion of the proceeds  received from the sales of UFLIC
and LOV. The net cash provided from capital  accumulation  product  deposits and
withdrawals  was $71  million in 1996.  Cash was used to pay  dividends  of $154
million on common stock,  $11 million on the 8% preferred  stock,  $6 million on
6.25% preferred stock and $2 million on redeemable preferred stock.

Assets and liabilities held under special  contracts,  which relate primarily to
designated  funds of group pension,  variable life and annuity  policyholders in
1996 and to discontinued  operations in 1995,  decreased $2.2 billion from 1995,
reflecting  the  sale of  discontinued  operations.  The net  investment  income
generated  from these assets is not included in the  consolidated  statements of
income.

Total assets  decreased $6 billion to $13.7 billion,  while  invested  assets at
December 31, 1996 decreased $5.4 billion from year-end levels,  primarily due to
the sales of UFLIC and LOV.

                                     - 22 -
<PAGE>

INVESTMENT OPERATIONS

Aon  Corporation  invests in broad asset  categories  related to its diversified
operations.  Investments  are managed with the objective of maximizing  earnings
while  matching  asset  and  liability  durations  and  considering   regulatory
requirements.

Aon maintains  well-capitalized  operating companies.  The financial strength of
these  companies  permits  an  overall  diversified   investment  portfolio  for
stability in volatile financial markets.

Investment  characteristics  mirror liability  characteristics of the respective
operating  units.  Aon's insurance  brokerage and consulting  businesses  invest
fiduciary   funds  in   shorter   term   obligations.   Investments   underlying
interest-sensitive   capital  accumulation   insurance  products  are  primarily
intermediate-term  obligations,  while indemnity and other types of non-interest
sensitive  insurance  liabilities are primarily  supported by  intermediate  and
longer-term   instruments.   Longer-term  assets  also  include  private  equity
investments  that  are  anticipated  to  generate  returns  in  excess  of those
available in the public capital markets.

With a carrying  value of $3 billion,  Aon's total fixed  maturity  portfolio is
invested  primarily in investment  grade  holdings  (97%) and has a market value
which is 104% of amortized cost.

At  December  31,  1996  and  1995,  Aon's  fixed  maturity  portfolio  included
mortgage-backed securities with an amortized cost of $64 million and $2 billion,
respectively.  The  amortized  cost  and fair  value  of  Aon's  mortgage-backed
securities  are presented in note 4.  Substantially  all of the  mortgage-backed
securities  included in Aon's fixed  maturities  portfolio  at December 31, 1995
related to  discontinued  operations.  After the sales of UFLIC and LOV in 1996,
Aon's  interest  in  and  exposure  to  certain  market  risks  associated  with
mortgage-backed securities was minimal.

Aon  maintained  investment  reserves  related to  mortgage  loan losses on real
estate  holdings  and real  estate  ventures  and  limited  partnerships.  These
reserves are a product of Aon's  continuing  review of the  characteristics  and
risks  of its  investment  portfolio  and  current  environmental  and  economic
conditions. These reserves totaled $6 million at year-end 1996, down $25 million
from the year-end 1995 level of $31 million.  Substantially  all of the decrease
in reserves was related to the removal of assets and liabilities of discontinued
operations.

INVESTED ASSETS--CONTINUING OPERATIONS

(millions)                                  1996     1995
- ----------------------------------------------------------
Short-term investments:
 Brokerage and consulting                 $  874   $  724
 Insurance and other                         392      191
Fixed maturities                           2,826    2,325
Non-redeemable preferred stock               485      490
Common stocks and partnerships               489      322
Mortgages and real estate                     88       63
Policy loans and other                        59       69
- ----------------------------------------------------------
Total invested assets                     $5,213   $4,184
==========================================================


Investment Income

(millions)                                  1996     1995
- ----------------------------------------------------------
Short-term investments:
 Brokerage and consulting                   $ 83     $ 76
 Insurance and other                          22       10
Fixed maturities                             197      164
Non-redeemable preferred stock                45       33
Common stocks and partnerships                32       42
Mortgages and real estate                      8        4
Policy loans and other                         7        8
- ----------------------------------------------------------
Gross investment income                      394      337
Investment expenses                           10        8
- ----------------------------------------------------------
Net investment income                       $384     $329
==========================================================


CAPITAL RESOURCES
In early  1997,  Aon  completed  the  merger  with A&A for a  purchase  price of
approximately  $1.2 billion.  This  acquisition  was financed by the issuance of
capital  securities (see note 8), internal funds, and the issuance of commercial
paper.

In 1996,  short-term  borrowings  decreased  $139  million.  This  decrease  was
primarily attributable to the use of sales proceeds to paydown commercial paper.
Credit  agreements  providing  lines of credit for  commercial  paper contain no
restrictive covenants.

In November 1996, each outstanding  share of Aon's 6.25% Cumulative  Convertible
Exchangeable  Preferred Stock (6.25% preferred stock) (see note 8) was converted
by the holders into 1.22 shares of common stock for a total of 2,606,000 shares.

Commencing on or after November 1, 1997, Aon has the option to redeem all or any
part of the 8% Cumulative  Perpetual  Preferred Stock (8% preferred  stock) at a
redemption price of $25.00 per share plus accrued  dividends.  It is anticipated
that Aon will most  likely  exercise  its option to redeem all of the  remaining
outstanding shares. At December 31, 1996, 5,446,000 shares of 8% preferred stock
were outstanding.

Aon Corporation borrows funds from and lends funds to its various  subsidiaries.
As of December 31, 1996, Aon Corporation held obligations to its subsidiaries of
approximately  $350  million.  Generally,  these  obligations  have  competitive
interest rates.

In 1996,  stockholders'  equity per common share  increased  to $24.31,  up from
$22.77 in 1995. The principal factors  influencing this increase were net income
which  includes  the aftertax  gain on sale of  discontinued  operations  of $21
million,  and a  $30  million  increase  in  net  unrealized  investment  gains.
Partially  offsetting  this  increase  was the  repurchase  of common  stock for
treasury at a cost of $66  million,  the increase in deferred  compensation  and
dividends.

                                     - 23 -
<PAGE>

<TABLE>
<CAPTION>
CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

(millions)                                                                     As of December 31     1996           1995
- -------------------------------------------------------------------------------------------------------------------------
ASSETS

INVESTMENTS
<S>                                                                                             <C>            <C>
     Fixed maturities available for sale--at fair value                                         $ 2,826.1      $ 7,687.1
     Equity securities--at fair value                                                               879.2        1,006.3
     Mortgage loans on real estate
          (net of reserve for losses: 1996--$1; 1995--$26)                                           29.0          632.0
     Real estate
          (net of accumulated depreciation: 1996--$8; 1995--$8)                                      17.8           36.5
     Policy loans                                                                                    58.2          226.3
     Other long-term investments                                                                    136.2          112.6
     Short-term investments                                                                       1,266.3          938.3
                                                                                               --------------------------
          Total investments                                                                       5,212.8       10,639.1
- -------------------------------------------------------------------------------------------------------------------------


CASH                                                                                                410.1          115.3

RECEIVABLES
     Insurance brokerage and consulting services receivables                                      3,565.9        2,264.1
     Premiums and other                                                                             989.3          580.2
     Accrued investment income                                                                       69.2          152.4
                                                                                               --------------------------
          Total receivables (net of allowance for doubtful accounts: 1996--$63; 1995--$51)        4,624.4        2,996.7
- -------------------------------------------------------------------------------------------------------------------------


DEFERRED POLICY ACQUISITION COSTS                                                                   598.8        1,261.5

COST OF INSURANCE AND RENEWAL RIGHTS PURCHASED
     (net of accumulated amortization: 1996--$665; 1995--$625)                                      537.5          640.1

EXCESS OF COST OVER NET ASSETS PURCHASED
     (net of accumulated amortization: 1996--$194; 1995--$157)                                    1,060.2          957.6

PROPERTY AND EQUIPMENT AT COST
     (net of accumulated depreciation: 1996--$339; 1995--$307)                                      323.2          307.8

ASSETS HELD UNDER SPECIAL CONTRACTS                                                                  87.3        2,307.2

OTHER ASSETS                                                                                        868.4          510.5
- -------------------------------------------------------------------------------------------------------------------------

     TOTAL ASSETS                                                                               $13,722.7      $19,735.8
- -------------------------------------------------------------------------------------------------------------------------
<FN>
See accompanying notes to consolidated financial statements.
</FN>
</TABLE>

                                     - 24 -
<PAGE>
<TABLE>
<CAPTION>

(millions)                                                                     As of December 31     1996           1995
- -------------------------------------------------------------------------------------------------------------------------
LIABILITIES AND STOCKHOLDERS' EQUITY

POLICY LIABILITIES
<S>                                                                                             <C>            <C>
     Future policy benefits                                                                     $ 1,079.4      $ 1,475.1
     Policy and contract claims                                                                     840.9          970.9
     Unearned and advance premiums                                                                1,925.2        1,646.2
     Other policyholder funds                                                                       514.1        5,464.2
                                                                                               --------------------------
         Total policy liabilities                                                                 4,359.6        9,556.4
- -------------------------------------------------------------------------------------------------------------------------

INSURANCE PREMIUMS PAYABLE                                                                        4,143.7        2,722.8

GENERAL LIABILITIES
     Commissions and general expenses                                                               776.8          562.4
     Accrued income taxes
         Current                                                                                     80.1          107.1
         Deferred                                                                                    16.5          225.5
     Short-term borrowings                                                                          213.4          352.7
     Notes payable                                                                                  475.1          497.5
     Debt guarantee of employee stock ownership plan                                                 46.1           56.8
     Liabilities held under special contracts                                                        87.3        2,307.2
     Other liabilities                                                                              641.2          623.7
                                                                                               --------------------------
         TOTAL LIABILITIES                                                                       10,839.8       17,012.1
- -------------------------------------------------------------------------------------------------------------------------

COMMITMENTS AND CONTINGENT LIABILITIES

REDEEMABLE PREFERRED STOCK                                                                           50.0           50.0

STOCKHOLDERS' EQUITY
     Preferred stock--$1 par value
         Authorized--25 shares; issued
         8% cumulative perpetual preferred stock                                                      5.5            6.0
         6.25% cumulative convertible exchangeable preferred stock                                     --            2.1
     Common stock--$1 par value
         Authorized--300 shares; issued                                                             114.1          111.4
     Paid-in additional capital                                                                     475.4          431.8
     Net unrealized investment gains                                                                153.1          123.1
     Net foreign exchange gains                                                                       1.0            1.8
     Retained earnings                                                                            2,356.8        2,212.1
     Less treasury stock at cost (shares: 1996--3.2; 1995--3.1)                                    (121.5)         (97.3)
     Less deferred compensation                                                                    (151.5)        (117.3)
                                                                                               --------------------------
         TOTAL STOCKHOLDERS' EQUITY                                                               2,832.9        2,673.7
- -------------------------------------------------------------------------------------------------------------------------

         TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY                                             $13,722.7      $19,735.8
=========================================================================================================================
</TABLE>
                                     - 25 -
<PAGE>
<TABLE>
<CAPTION>
CONSOLIDATED STATEMENTS OF INCOME

(millions except per share data)                            Years ended December 31   1996           1995           1994
- -------------------------------------------------------------------------------------------------------------------------

REVENUE
<S>                                                                               <C>            <C>            <C>
     Brokerage commissions and fees                                               $1,918.8       $1,651.3       $1,388.7
     Premiums earned                                                               1,526.7        1,426.5        1,322.3
     Net investment income (note 4)                                                  384.0          329.4          257.1
     Realized investment gains (note 4)                                                8.1           13.1           19.1
     Other income                                                                     50.6           45.4           54.0
                                                                                -----------------------------------------
         Total revenue                                                             3,888.2        3,465.7        3,041.2
- -------------------------------------------------------------------------------------------------------------------------

BENEFITS AND EXPENSES
     Commissions and general expenses                                              2,328.6        1,982.3        1,719.2
     Benefits to policyholders                                                       789.5          698.5          626.2
     Interest expense                                                                 40.1           37.3           32.7
     Amortization of deferred policy acquisition costs                               207.9          207.5          189.3
     Amortization of intangible assets                                                76.5           82.1           76.8
                                                                                -----------------------------------------
         Total benefits and expenses                                               3,442.6        3,007.7        2,644.2
- -------------------------------------------------------------------------------------------------------------------------

INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAX                                  445.6          458.0          397.0
     Provision for income tax (note 6)                                               153.8          154.3          128.5
                                                                                -----------------------------------------
INCOME FROM CONTINUING OPERATIONS                                                    291.8          303.7          268.5
DISCONTINUED OPERATIONS (note 3):
     Income from discontinued operations, net of tax                                  22.4           99.1           91.5
     Gain on sale of discontinued operations, net of tax                              21.0             --             --
                                                                                -----------------------------------------
NET INCOME                                                                        $  335.2       $  402.8       $  360.0
- -------------------------------------------------------------------------------------------------------------------------

Net income available for common stockholders                                      $  316.4       $  378.1       $  327.6
- -------------------------------------------------------------------------------------------------------------------------

PER SHARE
     Income from continuing operations                                            $   2.48       $   2.57       $   2.28
     Discontinued operations                                                          0.39           0.91           0.86
                                                                                -----------------------------------------
     Net income                                                                   $   2.87       $   3.48       $   3.14
                                                                                -----------------------------------------
     Cash dividends paid on common stock                                          $   1.42       $   1.34       $   1.26
- -------------------------------------------------------------------------------------------------------------------------

AVERAGE COMMON AND COMMON EQUIVALENT SHARES OUTSTANDING                              110.2          108.7          106.2
=========================================================================================================================
<FN>
See accompanying notes to consolidated financial statements.
</FN>
</TABLE>

                                     - 26 -
<PAGE>
<TABLE>
<CAPTION>

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(millions)                                                  Years ended December 31   1996           1995           1994
- -------------------------------------------------------------------------------------------------------------------------
<S>                                                                              <C>             <C>            <C>
PREFERRED STOCK  Balance at January 1                                            $     8.1       $   11.1       $   13.8
     Retirement of preferred stock                                                    (0.5)          (3.0)          (1.3)
     Conversion of preferred stock to common stock                                    (2.1)            --           (1.4)
                                                                                -----------------------------------------
                                                                                       5.5            8.1           11.1
- -------------------------------------------------------------------------------------------------------------------------

COMMON STOCK  Balance at January 1                                                   111.4          110.6           70.0
     Shares issued for business combinations                                           0.1            0.8            5.3
     Effect of three-for-two stock split                                                --             --           35.3
     Conversion of preferred stock to common stock                                     2.6             --             --
                                                                                -----------------------------------------
                                                                                     114.1          111.4          110.6
- -------------------------------------------------------------------------------------------------------------------------

PAID-IN ADDITIONAL CAPITAL  Balance at January 1                                     431.8          485.2          605.7
     Stock awards                                                                     55.2           19.2           10.8
     Adjustment for business combinations                                              2.2           (0.6)           1.9
     Retirement and conversion of preferred stock                                    (13.8)         (72.0)         (97.9)
     Effect of three-for-two stock split                                                --             --          (35.3)
                                                                                -----------------------------------------
                                                                                     475.4          431.8          485.2
- -------------------------------------------------------------------------------------------------------------------------

NET UNREALIZED INVESTMENT GAINS (LOSSES)  Balance at January 1                       123.1         (142.8)          50.3
     Effect of a change in accounting principles at January 1                           --             --          148.2
     Net unrealized investment gains (losses)                                         30.0          265.9         (341.3)
                                                                                -----------------------------------------
                                                                                     153.1          123.1         (142.8)
- -------------------------------------------------------------------------------------------------------------------------

NET FOREIGN EXCHANGE GAINS (LOSSES)  Balance at January 1                              1.8          (19.7)         (61.0)
     Net foreign exchange gains (losses)                                              (0.8)          21.5           41.3
                                                                                -----------------------------------------
                                                                                       1.0            1.8          (19.7)
- -------------------------------------------------------------------------------------------------------------------------

RETAINED EARNINGS  Balance at January 1                                            2,212.1        1,998.1        1,784.9
     Net income                                                                      335.2          402.8          360.0
     Dividends to stockholders                                                      (171.8)        (170.4)        (162.0)
     Loss on treasury stock reissued                                                 (16.0)         (21.7)            --
     Adjustment for business combinations                                             (2.4)           3.7           27.6
     Retirement of preferred stock                                                    (0.3)          (0.4)         (12.4)
                                                                                -----------------------------------------
                                                                                   2,356.8        2,212.1        1,998.1
- -------------------------------------------------------------------------------------------------------------------------

TREASURY STOCK  Balance at January 1                                                 (97.3)         (72.9)         (69.3)
     Cost of shares acquired                                                         (66.1)         (71.8)         (26.6)
     Shares reissued at average cost                                                  41.9           47.4           73.0
     Conversion of common stock to redeemable preferred stock                           --             --          (50.0)
                                                                                -----------------------------------------
                                                                                    (121.5)         (97.3)         (72.9)
- -------------------------------------------------------------------------------------------------------------------------

DEFERRED COMPENSATION  Balance at January 1                                         (117.3)        (112.2)        (106.6)
     Issuance of stock awards                                                        (56.8)         (21.2)         (18.3)
     Debt guarantee of employee stock ownership plan                                  10.7            8.7            7.0
     Amortization of deferred compensation                                            11.9            7.4            5.7
                                                                                -----------------------------------------
                                                                                    (151.5)        (117.3)        (112.2)
- -------------------------------------------------------------------------------------------------------------------------

STOCKHOLDERS' EQUITY AT DECEMBER 31                                               $2,832.9       $2,673.7       $2,257.4
=========================================================================================================================
<FN>
See accompanying notes to consolidated financial statements.
</FN>
</TABLE>

                                     - 27 -
<PAGE>

<TABLE>
<CAPTION>

CONSOLIDATED STATEMENTS OF CASH FLOWS


(millions)                                                  Years ended December 31   1996           1995           1994
- -------------------------------------------------------------------------------------------------------------------------

CASH FLOWS FROM OPERATING ACTIVITIES
<S>                                                                             <C>             <C>            <C>
     Net income                                                                 $    335.2      $   402.8      $   360.0
     Adjustments to reconcile net income to cash
       provided by operating activities
         Policy liabilities                                                          766.7          445.4          298.6
         Deferred policy acquisition costs                                          (213.1)        (410.3)        (414.5)
         Amortization of deferred policy acquisition costs                           235.6          302.7          276.2
         Amortization of intangible assets                                            79.0           94.2           92.2
         Other amortization and depreciation                                          65.0           63.7           57.3
         Other operating assets and liabilities                                     (887.7)        (284.6)          31.8
         Realized investment gains                                                    (5.1)          (4.3)          (5.8)
         Gain on sale of discontinued operations                                     (21.0)            --             --
                                                                                -----------------------------------------
               CASH PROVIDED BY OPERATING ACTIVITIES                                 354.6          609.6          695.8
- -------------------------------------------------------------------------------------------------------------------------

CASH FLOWS FROM INVESTING ACTIVITIES
     Sale (purchase) of short-term investments--net                                  (65.2)        (126.9)         143.4
     Sale or maturity of fixed maturities
          Available for sale--Maturities                                             135.5          121.2          109.5
                              Calls and prepayments                                  204.5          249.5          312.2
                              Sales                                                  979.7        2,425.8          883.9
          Held to maturity -- Maturities                                                --            3.9           49.2
                              Calls and prepayments                                     --          142.0          727.6
                              Sales                                                     --            3.0             --
     Sale of equity investments                                                      636.1        1,215.6          686.5
     Sale or maturity of other investments                                           200.6          265.2          292.7
     Purchase of fixed maturities
         Available for sale                                                       (1,843.3)      (3,222.1)      (1,591.2)
         Held to maturity                                                               --             --         (734.8)
     Purchase of equity investments                                                 (661.3)      (1,131.0)        (805.1)
     Purchase of other investments                                                  (302.1)        (362.9)        (336.5)
     Acquisition of subsidiaries                                                    (342.2)        (109.6)         (22.0)
     Disposition of subsidiaries                                                   1,370.0             --             --
     Property and equipment and other                                                (74.8)         (97.9)         (76.9)
                                                                                -----------------------------------------
               CASH PROVIDED (USED) BY INVESTING ACTIVITIES                          237.5         (624.2)        (361.5)
- -------------------------------------------------------------------------------------------------------------------------

CASH FLOWS FROM FINANCING ACTIVITIES
     Treasury stock transactions--net                                                (40.1)         (46.4)         (15.4)
     Issuance (repayment) of short-term borrowings--net                             (139.2)         108.8           75.3
     Issuance of long-term debt                                                         --           20.1           99.7
     Repayment of long-term debt                                                      (5.7)         (12.5)        (128.0)
     Interest sensitive life, annuity and investment contracts
         Deposits                                                                    508.1        1,287.5        1,557.5
         Withdrawals                                                                (437.4)      (1,487.6)      (1,362.4)
     Retirement of preferred stock                                                   (14.2)         (75.4)         (58.3)
     Cash dividends to stockholders                                                 (172.9)        (171.3)        (162.3)
                                                                                -----------------------------------------
               CASH PROVIDED (USED) BY FINANCING ACTIVITIES                         (301.4)        (376.8)           6.1
- -------------------------------------------------------------------------------------------------------------------------

     EFFECT OF EXCHANGE RATE CHANGES ON CASH                                           4.1           (2.1)           4.6
     INCREASE (DECREASE) IN CASH                                                     294.8         (393.5)         345.0
     CASH AT BEGINNING OF YEAR                                                       115.3          508.8          163.8
                                                                                -----------------------------------------
CASH AT END OF YEAR                                                             $    410.1      $   115.3      $   508.8
- -------------------------------------------------------------------------------------------------------------------------
<FN>
See accompanying notes to consolidated financial statements.
</FN>
</TABLE>
                                     - 28 -
<PAGE>



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. SUMMARY OF SIGNIFICANT ACCOUNTING PRINCIPLES AND PRACTICES

PRINCIPLES OF CONSOLIDATION
The  accompanying  consolidated  financial  statements  have  been  prepared  in
conformity  with  generally  accepted  accounting  principles  and  include  the
accounts  of  Aon  Corporation  and  its  operating  subsidiaries  (Aon).  These
statements  include  informed  estimates and assumptions that affect the amounts
reported.  Actual results could differ from the amounts  reported.  All material
intercompany   accounts  and  transactions   have  been  eliminated.

BROKERAGE COMMISSIONS AND FEES
In general, commission income is recognized at the later of
the billing or  effective  date of the related  insurance  policies.  Contingent
commissions,  certain life  insurance  commissions  and  commissions on premiums
billed directly by insurance  companies are generally  recognized as income when
received.  Commissions on premium adjustments,  including policy  cancellations,
are recognized as they occur. Fees for claim  administration  services,  benefit
consulting,  reinsurance  services and other  services are  recognized  when the
services are rendered.

RECOGNITION OF PREMIUM REVENUE
In general,  for accident  and health,  extended  warranty and credit  products,
premiums collected are reported as earned in proportion to insurance  protection
provided over the period  covered by the policies.  For life products other than
credit, premiums are recognized as revenue when due.

REINSURANCE
Reinsurance  premiums,  commissions  and  expense  reimbursements  on  reinsured
business are accounted for on a basis  consistent  with those used in accounting
for the original  policies  issued and the terms of the  reinsurance  contracts.
Premiums and benefits ceded to other companies have been reported as a reduction
of premium revenue and benefits.  Expense reimbursements  received in connection
with  reinsurance  ceded have been  accounted  for as a reduction of the related
policy  acquisition  costs or, to the  extent  such  reimbursements  exceed  the
related  acquisition  costs, as other revenue.  All reinsurance  receivables and
prepaid reinsurance premium amounts are reported as assets.

SPECIAL CHARGES
In second  quarter 1996,  Aon recorded a $30 million  pretax charge related to a
voluntary early  retirement  program for all eligible  employees of Aon's United
States (U.S.)  operating  subsidiaries  and similar programs in parts of Europe.
Approximately 450 employees,  60% of whom were in the U.S.,  participated in the
early retirement program.

In fourth  quarter  1996,  Aon recorded  pretax  special  charges of $60 million
primarily  related to management's  commitment to a formal plan of restructuring
Aon's European  brokerage  operations.  The  restructuring  charges  include $32
million  relating  to  consolidating  real  estate  space  and  data  processing
facilities and equipment,  primarily in Europe, in order to merge Aon's existing
operations  with those of Bain Hogg  Group plc (Bain  Hogg).  The  restructuring
charges related to  consolidating  real estate space are expected to be paid out
over several years.  Special charges of $12 million for workforce reductions are
planned to take place within one year and involve  approximately  300 positions.
Costs   associated  with  special   assessments  to  be  paid  relating  to  the
reconstruction  of the Lloyd's of London insurance market were $11 million.  The
remaining  charges  primarily  reflect  Aon's exit from certain  U.S.  insurance
underwriting markets.

These  charges  were  reflected  in  commissions  and  general  expenses  in the
consolidated statements of income.

INCOME TAX
Deferred  income tax has been provided for the effects of temporary  differences
between financial reporting and tax bases of assets and liabilities and has been
measured  using the enacted  marginal  tax rates and laws that are  currently in
effect.

EARNINGS PER SHARE
Earnings per share are computed  based on the weighted  average number of common
and common equivalent shares outstanding  during the respective  period.  Common
shares  outstanding  include  3,013,000  shares,  3,267,000 shares and 3,386,000
shares  held by the  employee  stock  ownership  plan in 1996,  1995  and  1994,
respectively.  Common  equivalent shares include dilutive stock awards and stock
options  and,  prior  to 1995,  Series  B  conversion  preferred  stock.  The 8%
cumulative  perpetual preferred stock (8% preferred stock), the 6.25% cumulative
convertible  exchangeable  preferred  stock  (6.25%  preferred  stock)  and  the
redeemable   preferred  stock  are  not  considered  common  equivalent  shares.
Accordingly,  the dividends on the 8%, 6.25% and redeemable preferred stock have
been  deducted  from net  income to  compute  earnings  per  share.  There is no
material difference between primary and fully diluted per share amounts.  Income
available for common stockholders is net of dividends on all preferred stock.

INVESTMENTS
Fixed  maturities  are  available  for sale and are carried at fair  value.  The
amortized cost of fixed  maturities is adjusted for  amortization of premiums to
the first call date and the accretion of discounts to maturity that are included
in net  investment  income.  Included in fixed  maturities  are  investments  in
collateralized mortgage obligations whose amortized cost is determined using the
interest method including anticipated  prepayments.  Prepayment  assumptions are
obtained from dealer surveys.  The  retrospective  adjustment  method is used to
adjust for  prepayment  activity.  Equity  securities  are valued at fair value.
Unrealized gains and temporary  unrealized losses on fixed maturities  available
for sale and  equity  securities  are  excluded  from  income  and are  recorded
directly to stockholders' equity, net of related deferred income taxes. Mortgage
loans are carried at amortized  cost,  net of  reserves.  Real estate is carried
generally  at cost less  accumulated  depreciation.  Policy loans are carried at
unpaid principal balance.  Other long-term  investments are carried generally at
cost.  Realized  investment gains or losses are computed using specific costs of
securities sold.

                                     - 29 -
<PAGE>


Investments  that have declines in fair value below cost, which are judged to be
other than temporary,  are written down to estimated fair values.  Additionally,
reserves for mortgage loan losses are based on  discounted  cash flows using the
loan's initial  effective  interest rate.  Reserves for certain other  long-term
investments are established based on an evaluation of the respective  investment
portfolio and current  economic  conditions.  Writedowns and changes in reserves
are  included  in  realized  investment  gains and losses in the  statements  of
income.  In general,  Aon ceases to accrue  investment  income where interest or
dividend payments are in arrears.

Accounting policies relating to derivative  financial  instruments are discussed
in note 11.

DEFERRED POLICY ACQUISITION  COSTS

Costs of acquiring new and renewal insurance underwriting business,  principally
the excess of new commissions over renewal  commissions,  underwriting and sales
expenses  that vary with and are  primarily  related  to the  production  of new
business, are deferred. For long-duration life and health products, amortization
of deferred  policy  acquisition  costs is related to and based on the  expected
premium revenues of the policies.  In general,  such amortization is adjusted to
reflect current withdrawal  experience.  Expected premium revenues are estimated
by using the same  assumptions used in estimating  future policy  benefits.  For
extended warranty and  short-duration  health insurance,  costs of acquiring and
renewing business,  which are deferred,  are amortized as the related premium is
earned.

OTHER INTANGIBLE ASSETS

In general,  the excess of cost over net assets  purchased  relating to business
acquisitions  is being  amortized  into income over periods not exceeding  forty
years using the straight-line  method.  The cost of insurance and renewal rights
purchased of certain  subsidiaries  is being  amortized  over a range of 4 to 25
years.

PROPERTY  AND  EQUIPMENT

Property and equipment are generally  depreciated using the straight-line method
over their estimated useful lives.

FAIR VALUE OF FINANCIAL INSTRUMENTS
The  following  methods and  assumptions  were used to estimate  fair values for
financial  instruments.  The carrying amounts in the consolidated  statements of
financial  position  for  cash  and  cash  equivalents,   including   short-term
investments,  approximate  their fair value.  Fair value for fixed  maturity and
equity  securities is based on quoted market prices or, if they are not actively
traded, on estimated values obtained from independent pricing services. However,
the fair  value  for  fixed  maturity  and  equity  securities  relating  to the
discontinued  operations  were based on the  underlying  purchase  agreements at
December  31,  1995.  The fair  value for  mortgage  loans and  policy  loans is
estimated using  discounted  cash flow analyses,  using interest rates currently
being offered for similar loans to borrowers with similar credit  ratings.  Fair
value of derivatives is based on quoted prices for  exchange-traded  instruments
or the cost to terminate or offset with other contracts.

In general,  other  long-term  investments  are  comprised  of real estate joint
ventures and limited  partnerships.  It was not practicable to estimate the fair
value of other long-term  investments  because of the inability to estimate fair
value without incurring  excessive costs. In addition,  the determination of the
fair value of investment commitments was deemed impractical due to the inability
to estimate future cash flows.

Fair value for  liabilities  for  investment-type  contracts is estimated  using
discounted  cash flow  calculations  based on  interest  rates  currently  being
offered for similar  contracts with  maturities  consistent with those remaining
for the  contracts  being  valued.  The fair value for notes payable is based on
quoted  market  prices for the publicly  traded  portion and on estimates  using
discounted cash flow analyses based on current borrowing rates for similar types
of borrowing arrangements for the non-publicly traded portion.


ASSETS AND LIABILITIES HELD UNDER SPECIAL CONTRACTS
Assets held under special contracts  principally  represent  designated funds of
group  pension,  variable life,  annuity and  unit-linked  policyholders.  These
assets are offset by liabilities  that represent such  policyholders'  equity in
those  assets.  The net  investment  income  generated  from these assets is not
included in the consolidated statements of income.

FUTURE POLICY BENEFITS, UNEARNED PREMIUMS AND POLICY AND CONTRACT CLAIMS
Future policy benefit  liabilities on  non-universal  life-type and accident and
health  products  have  been  provided  on the net  level  premium  method.  The
liabilities  are  calculated  based  on  assumptions  as  to  investment  yield,
mortality,  morbidity and withdrawal  rates that were  determined at the date of
issue and provide for possible  adverse  deviations.  Interest  assumptions  are
graded and range from 7.0% to 5.0% at December 31, 1996. Withdrawal  assumptions
are based  principally on insurance  subsidiaries'  experience and vary by plan,
year of issue and duration.  Policyholder liabilities on universal life-type and
investment products are generally based on policy account values.

Unearned  premiums  generally are calculated  using the pro rata method based on
gross premiums.  However,  in the case of extended warranty and credit products,
the unearned  premiums are calculated such that the premiums are earned over the
period of risk in a reasonable relationship to anticipated claims.

Policy and contract claim liabilities  represent  estimates for reported claims,
as well as provisions  for losses  incurred,  but not yet reported.  These claim
liabilities are based on historical experience and are estimates of the ultimate
amount  to be paid  when  the  claims  are  settled.  Changes  in the  estimated
liability are reflected in income as the estimates are revised.

FOREIGN CURRENCY TRANSLATION

In general,  foreign  revenues and expenses are  translated at average  exchange
rates. Foreign assets and liabilities are translated at year-end exchange rates.
Net foreign  exchange gains and losses on translation are generally  reported in
stockholders'  equity,  net of deferred income tax of $1 million at December 31,
1996 and 1995.

ACCOUNTING CHANGES
In  October  1995,  the  Financial  Accounting  Standards  Board  (FASB)  issued
Statement No. 123 "Accounting for Stock-

                                     - 30 -
<PAGE>
Based Compensation." As allowed by Statement No. 123, Aon has chosen to continue
to  account  for  stock-based  compensation  using the  intrinsic  value  method
prescribed in Accounting  Principles Board Opinion No. 25, "Accounting for Stock
Issued to Employees,"  and related  Interpretations.  Accordingly,  compensation
cost for stock  options and awards is  measured  as the  excess,  if any, of the
quoted market price of Aon's stock at the grant date over the amount an employee
must pay to acquire the stock.  Aon has adopted the disclosure  requirements  of
Statement No. 123. See note 10.

In 1996, Aon adopted FASB Statement No. 121,  "Accounting  for the Impairment of
Long-Lived Assets and for Long-Lived  Assets to Be Disposed Of."  Implementation
of this Statement did not have a material effect on Aon's financial statements.

In 1996,  the FASB  issued  Statement  No. 125  "Accounting  for  Transfers  and
Servicing  of  Financial  Assets  and   Extinguishments  of  Liabilities."  This
Statement provides accounting and reporting standards for sales,  securitization
and servicing of receivables and other financial assets and  extinguishments  of
liabilities.  The provisions of this Statement are to be applied to transactions
occurring  after December 31, 1996. Aon  anticipates  adopting this Statement in
its 1997 financial  statements as required.  Implementation of this Statement is
not expected to have a material effect on Aon's financial statements.

Aon adopted FASB Statement No. 115,  "Accounting for Certain Investments in Debt
and Equity  Securities" in 1994. On November 15, 1995, the FASB issued a Special
Report,  "A Guide to  Implementation  of Statement 115 on Accounting for Certain
Investments in Debt and Equity  Securities."  In accordance  with  provisions in
that  Special  Report,  Aon  reclassified  $2.9  billion  of  held  to  maturity
securities,  substantially all of which related to discontinued  operations,  to
available for sale.

2. BUSINESS COMBINATIONS

PURCHASE  METHOD
In October 1996,  Aon acquired Bain Hogg for  approximately  $260 million.  This
acquisition  was  financed  by  internal  funds.  The 1996  statement  of income
included the operations of Bain Hogg since the date of acquisition. The purchase
price  allocation will be finalized  during 1997. Aon's 1996 revenues would have
been approximately $260 million greater had the acquisition  occurred on January
1, 1996.

In addition,  during 1996, 1995 and 1994,  subsidiaries of Aon acquired  certain
insurance  brokerage  and  consulting  services  operations  that were  financed
primarily by internal  funds and the  reissuance of common stock from  treasury.
Pursuant to a 1994 purchase agreement with one of the brokerage operations,  Aon
is contingently  liable through 1999 to issue up to 239,000 additional shares of
common stock based on a formula  relating to future  earnings of that operation.
The aggregate cost of these acquisitions,  excluding Bain Hogg, was $86 million,
$110 million and $22 million in 1996, 1995 and 1994, respectively. The pro forma
results of these  operations,  as if the  acquisitions  had  occurred  as of the
beginning of the year, have an immaterial effect on Aon's  consolidated  revenue
and net income.

In accordance  with a 1992 purchase  agreement,  securities with a value of $125
million are being held in escrow. The escrowed  securities will be released on a
pre-determined schedule between 1997 and 2007.

POOLING OF INTERESTS METHOD

In 1996,  1995 and  1994,  Aon  issued  546,000  shares,  1,404,000  shares  and
5,546,000  shares of common  stock,  respectively,  for mergers  with  insurance
brokerage  and  consulting  organizations.  In  connection  with  several of the
mergers,  700,000 shares are being held in escrow at December 31, 1996,  pending
the resolution of  contingencies.  Aon's prior period financial  statements have
not been  restated for the mergers  because the effect of the above  mergers was
not material.

1997 ACQUISITION
In early 1997, Aon completed its  acquisition of Alexander & Alexander  Services
Inc. (A&A) for a purchase price of approximately  $1.2 billion.  The acquisition
was financed  primarily by the issuance of trust  preferred  capital  securities
(see note 8), issuance of commercial  paper and internal funds. Aon will account
for this acquisition as a purchase,  and the application of purchase  accounting
in 1997 will result in a significant increase in intangible assets.

Based on 1995 total  insurance  services  and other  revenue,  A&A ranked as the
world's fourth largest insurance brokerage company.

3. DISCONTINUED OPERATIONS
In April 1996, Aon completed the sales of its domestic  direct response life and
health subsidiary, Union Fidelity Life Insurance Company (UFLIC) and its capital
accumulation life insurance  subsidiary,  The Life Insurance Company of Virginia
(LOV) to General  Electric  Capital  Corporation  and  received  aftertax  sales
proceeds  of  approximately  $1.2  billion.  The  gain on  sale of  discontinued
operations was $21 million, net of taxes.


For 1996,  1995 and 1994,  the  discontinued  operations  had  revenues  of $293
million,  $1,145  million and $1,116  million,  respectively.  The  revenues and
corresponding  benefits  and  expenses  were  reported  on a net  basis  in  the
consolidated  statements  of income  and were net of taxes of $12  million,  $53
million  and $49  million  in 1996,  1995 and 1994,  respectively.  Income  from
discontinued operations that was earned subsequent to the commitment to the plan
to dispose  was $22  million and $15  million,  net of taxes,  in 1996 and 1995,
respectively.

Included in discontinued  operations is pretax  interest  expense of $5 million,
$18 million and $14 million in 1996, 1995 and 1994, respectively. The allocation
of interest  expense was based on the ratio of discontinued  net assets to total
consolidated equity and debt.

                                     - 31 -
<PAGE>

The  assets  and  liabilities  after  reinvestment  of  net  sales  proceeds  of
discontinued  operations  included in the  consolidated  statement  of financial
position at December 31, 1995 were as follows:

(millions)
- ------------------------------------------------------------------
Investments                                                $5,470
Deferred policy acquisition costs                             630
Intangible assets                                             150
Assets held under special contracts                         2,020
Receivables and other assets                                  260
- ------------------------------------------------------------------
Total Assets                                               $8,530
==================================================================
Policy liabilities                                         $6,170
Liabilities held under special contracts                    2,020
General and other liabilities                                 340
- ------------------------------------------------------------------
Total Liabilities                                          $8,530
==================================================================



4. INVESTMENTS
The components of net investment income are as follows:

(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Fixed maturities                            $197     $164     $132
Equity securities                             61       59       56
Short-term investments                       105       86       58
Other                                         31       28       19
- -------------------------------------------------------------------
Gross investment income                      394      337      265
Investment expenses                           10        8        8
- -------------------------------------------------------------------
Net investment income                       $384     $329     $257
===================================================================


Realized gains (losses) on investments are as follows:

(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Fixed maturities available for sale:
 Gross gains                                 $13      $ 8     $ 12
 Gross losses                                 (9)      (3)      (4)
Equity securities                             12       12       31
Other                                         (8)      (4)     (20)
- -------------------------------------------------------------------
Total before tax                               8       13       19
Less applicable tax                            3        5        7
- -------------------------------------------------------------------
Total net realized investment gains          $ 5      $ 8     $ 12
===================================================================


The components of net unrealized gains (losses) are as follows:

(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Fixed maturities                            $112     $115    $(158)
Equity securities                            128       78      (50)
Deferred tax credit (charge)                 (87)     (70)      35
Deferred policy acquisition costs             --       --       30
- -------------------------------------------------------------------
Net unrealized investment gains (losses)    $153      $123   $(143)
===================================================================


The changes in net unrealized investment gains (losses) are as follows:


(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Fixed maturities:
 Available for sale                         $ (3)    $273    $(403)
 Held to maturity                             --      234     (351)
Equity securities                             50      128     (131)
- -------------------------------------------------------------------
Total                                        $47     $635    $(885)
===================================================================

The  cumulative  effect of the adoption of Statement No. 115 on January 1, 1994,
increased  stockholders'  equity by $148 million (net of adjustments to deferred
policy  acquisition  costs  of $14  million  and  deferred  income  taxes of $83
million)  to  reflect  the net  unrealized  fixed  maturities  holding  gains on
securities  previously  carried at  amortized  cost;  there was no effect on net
income  as a result  of the  adoption.

The  amortized  cost and fair value of  investments  in available for sale fixed
maturities and equity securities are as follows:

As of December 31, 1996

                                          Gross          Gross
                          Amortized  Unrealized     Unrealized           Fair
(millions)                     Cost       Gains         Losses          Value
- ------------------------------------------------------------------------------
U.S. government
 and agencies                $   45        $  2           $ --         $   47
States and political
 subdivisions                   491          24             (1)           514
Foreign governments             948          44             (2)           990
Corporate securities          1,056          54             (7)         1,103
Mortgage-backed
 securities                      64           1             --             65
Other fixed maturities          110          --             (3)           107
- ------------------------------------------------------------------------------
Total fixed maturities        2,714         125            (13)         2,826
Total equity securities         751         142            (14)           879
- ------------------------------------------------------------------------------
Total                        $3,465        $267           $(27)        $3,705
==============================================================================



As of December 31, 1995
                                          Gross          Gross
                          Amortized  Unrealized     Unrealized           Fair
(millions)                     Cost       Gains         Losses          Value
- ------------------------------------------------------------------------------
U.S. government
 and agencies                $  151        $  4           $ --         $  155
States and political
 subdivisions                   444          31             --            475
Foreign governments             798          34             --            832
Corporate securities          4,046          57            (11)         4,092
Mortgage-backed
 securities                   2,033           2             --          2,035
Other fixed maturities          100           1             (3)            98
- ------------------------------------------------------------------------------
Total fixed maturities        7,572         129            (14)         7,687
Total equity securities         928         120            (42)         1,006
- ------------------------------------------------------------------------------
Total                        $8,500        $249           $(56)        $8,693
==============================================================================


The amortized cost and fair value of fixed maturities,  by contractual maturity,
as of December 31, 1996 is shown  below.  Expected  maturities  will differ from
contractual  maturities  because  borrowers may have the right to call or prepay
obligations with or without call or prepayment penalties.

                                         Amortized          Fair
(millions)                                    Cost         Value
- -----------------------------------------------------------------
Due in one year or less                     $  109        $  111
Due after one year through five years          712           742
Due after five years through ten years       1,119         1,175
Due after ten years                            710           733
Mortgage-backed securities                      64            65
- -----------------------------------------------------------------
Total available for sale                    $2,714        $2,826
=================================================================

                                     - 32 -
<PAGE>
Securities on deposit for regulatory  authorities as required by law amounted to
$308 million at December  31, 1996 and $320  million at December  31,  1995.  As
required by the by-laws of Lloyd's  brokers,  assets subject to floating charges
for the benefit of insurance creditors amounted to $853 million and $566 million
at December 31, 1996 and 1995,  respectively.  Aon maintains  premium trust bank
accounts for premiums  collected from insureds but not yet remitted to insurance
companies  of $580  million  and $495  million at  December  31,  1996 and 1995,
respectively.

At December 31, 1996 and 1995, respectively, Aon had $42 million and $72 million
of non-income producing investments.

5. DEBT AND LEASE COMMITMENTS

Notes Payable
The following is a summary of notes payable:

(millions)  As of December 31                     1996      1995
- -----------------------------------------------------------------
6.3% debt  securities,  due January 2004          $100      $100
6.7% debt  securities,  due June 2003              150       150
6.875% debt  securities, due October  1999         100       100
7.4% debt  securities,  due October 2002           100       100
Notes payable, due in varying installments,
 with interest at 6% to 8%                          25        48
- -----------------------------------------------------------------
Total notes payable                               $475      $498
=================================================================


Interest is payable semiannually on all debt securities.  In addition,  the debt
securities  are not  redeemable  by Aon prior to maturity and contain no sinking
fund provisions.  Maturities of notes payable are $4 million, $14 million,  $104
million and $1 million in 1997, 1998, 1999 and 2000, respectively.  In addition,
Aon has credit  agreements  providing lines of credit for commercial  paper. The
available  commercial  paper  back-up  lines of credit  totaled  $335 million at
December  31,  1996.

Information related to notes payable and short-term borrowings is as follows:

         Years ended December 31    1996    1995     1994
- ----------------------------------------------------------
Interest paid (millions)             $45     $54      $44
Weighted average interest rates--
 short-term borrowings               5.3%    5.9%     4.5%
==========================================================

Guaranteed Debt
Aon's employee stock  ownership plan (ESOP) has entered into loan  agreements to
purchase Aon common stock. The loans are  unconditionally  guaranteed by Aon and
therefore  the  unpaid  balance  of  the  loans  is  reflected  as  debt  in the
accompanying   statements  of  financial   position.   An   equivalent   amount,
representing   deferred   compensation,   is  recorded   as  a  deduction   from
stockholders'  equity. The ESOP paid $15 million, $14 million and $13 million in
1996,  1995  and  1994,  respectively,  in  loan  principal  and  interest  from
contributions  made by Aon to the ESOP as well as  dividend  proceeds  of common
stock held by the ESOP.  The loans have an interest  rate of 8.35% and  serially
mature  through  1999.  Interest  expense  incurred by the ESOP related to these
loans amounted to $4 million,  $5 million and $6 million in 1996, 1995 and 1994,
respectively.  Future contributions,  as determined by Aon's Board of Directors,
plus  dividends  earned on shares  held by the ESOP will be used to service  the
loans.

The ESOP allocated  396,000  shares in 1996.  The remaining  unallocated
shares at December 31, 1996 will be released  for  allocation  annually  through
early 1999.

The following table details the shares held in the ESOP:


(thousands)  As of December 31                     1996      1995
- ------------------------------------------------------------------
Allocated                                         1,623     1,481
Committed to be released                            428       396
Unallocated                                         962     1,390
- ------------------------------------------------------------------
Total                                             3,013     3,267
==================================================================


Lease   Commitments
Aon has noncancelable  operating leases for certain office  space,equipment  and
automobiles. Future minimum rental payments required under operating leases that
have  initial or  remaining  noncancelable  lease terms in excess of one year at
December 31, 1996 are:

(millions)                      Minimum  Lease  Payments
- ---------------------------------------------------------
1997                                               $ 134
1998                                                 125
1999                                                 118
2000                                                 105
2001                                                  93
Later years                                          485
- ---------------------------------------------------------
Total minimum payments required                   $1,060
- ---------------------------------------------------------

Rental expenses for all operating  leases for the years ended December 31, 1996,
1995  and  1994,  amounted  to $114  million,  $103  million  and  $93  million,
respectively.

6. INCOME TAX
Aon and its  principal  domestic  subsidiaries  are  included in a  consolidated
life-nonlife  federal income tax return. Aon's foreign subsidiaries file various
income tax  returns in their  foreign  jurisdictions.  A  reconciliation  of the
income tax  provisions  based on the U.S.  statutory  corporate  tax rate to the
provisions reflected in the consolidated financial statements is as follows:


         Years ended December 31    1996    1995     1994
- ----------------------------------------------------------
Statutory tax rate                  35.0%   35.0%    35.0%
Tax-exempt investment income        (3.7)   (3.8)    (4.0)
State income taxes                   3.5     2.8      2.3
Other--net                          (0.3)   (0.3)    (0.9)
- ----------------------------------------------------------
Effective tax rate                  34.5%   33.7%    32.4%
- ----------------------------------------------------------

                                     - 33 -
<PAGE>
The provision for income tax is made up of the following components:


(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Current:
 Federal                                    $115     $111     $ 59
 Foreign                                      55       45       62
 State                                        25       20       14
- -------------------------------------------------------------------
Total current                               $195     $176     $135
- -------------------------------------------------------------------
Deferred (credit):
 Federal                                    $ (9)   $ (17)    $  3
 Foreign                                     (31)      (4)       1
 State                                        (1)      (1)     (10)
- -------------------------------------------------------------------
Total deferred                               (41)     (22)      (6)
- -------------------------------------------------------------------
Provision for income tax                    $154     $154     $129
===================================================================

Significant  components  of Aon's  deferred  tax  liabilities  and assets are as
follows:


(millions)   As of December 31                     1996      1995
- ------------------------------------------------------------------
Deferred tax liabilities:
 Policy acquisition costs                          $ 65      $298
 Unrealized investment gains                         87        70
 Other--net                                          99       197
- ------------------------------------------------------------------
Total deferred tax liabilities                      251       565
- ------------------------------------------------------------------
Deferred tax assets:
 Insurance reserve amounts                          140       217
 Other--net                                          94       122
- ------------------------------------------------------------------
Total deferred tax assets                           234       339
- ------------------------------------------------------------------
Net deferred tax liabilities                       $ 17      $226
==================================================================


Prior to 1984, the life insurance  companies were required to accumulate certain
untaxed amounts in a memorandum  "policyholders' surplus account." Under the Tax
Reform Act of 1984, the "policyholders'  surplus account" balances were "capped"
at  December  31,  1983  and the  balances  will  be  taxed  only to the  extent
distributed to stockholders or when they exceed certain prescribed limits. As of
December 31, 1996, the combined  "policyholders'  surplus account" of Aon's life
insurance   subsidiaries   approximates  $363  million.   Aon's  life  insurance
subsidiaries  do not  intend to make any  taxable  distributions  or exceed  the
prescribed limits in the foreseeable future;  therefore, no income tax provision
has been made. However,  if such taxes were assessed,  the amount of tax payable
would be $127 million.

The amount of income taxes paid in 1996, 1995 and
1994 was $387 million, $256 million and $167 million, respectively.

7. REINSURANCE AND CLAIM RESERVES

Aon's insurance  subsidiaries are involved in both the cession and assumption of
reinsurance  with other  companies.  Aon's  reinsurance  consists  primarily  of
short-duration   contracts  that  are  entered  into  with  numerous  automobile
dealerships and insurers.  Aon's insurance  subsidiaries  would remain liable to
the extent that the reinsuring companies were unable to meet their obligations.


A summary of reinsurance activity is as follows:



(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Ceded premiums earned                       $508     $316     $319
Ceded premiums written                       667      369      340
Assumed premiums earned                      292       83       91
Assumed premiums written                     276      101       99
Ceded benefits to policyholders              220      153      170
===================================================================

Activity in the liability for policy contract claims is summarized as follows:


(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Liabilities at beginning of year           $ 715   $  681    $ 686
Incurred losses:
 Continuing operations--current year         830      726      596
 Continuing operations--prior year           (92)     (71)     (59)
 Discontinued operations                      90      361      386
- -------------------------------------------------------------------
Total                                        828    1,016      923
- -------------------------------------------------------------------
Payment of claims:
 Current year                               (552)    (651)    (582)
 Prior years                                (283)    (331)    (346)
- -------------------------------------------------------------------
Total                                       (835)    (982)    (928)
- -------------------------------------------------------------------
Liability for business sold                 (173)      --       --
Liabilities at end of year
 (net of reinsurance recoverables:
  1996--$306, 1995--$256,
  1994--$263)                              $ 535   $  715    $ 681
===================================================================

8. REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY

Redeemable Preferred Stock
In 1994, Aon issued 1,000,000  shares of redeemable  preferred stock to a former
officer in exchange for  1,500,000  shares of Aon common  stock.  Dividends  are
cumulative  at an  annual  rate of $2.55 per  share.  The  shares of  redeemable
preferred stock will be redeemable at the option of Aon or the holders, in whole
or in part,  at $50.00 per share no sooner than  February 9, 1999.

8% Cumulative Perpetual  Preferred Stock
At December 31, 1996,  5,446,000  shares of  cumulative  8% perpetual  preferred
stock are  outstanding.  In 1996 and 1995,  553,000 shares and 3,001,000  shares
were  purchased  and  retired at a total cost of $14  million  and $75  million,
respectively. Dividends are cumulative at the annual rate of $2.00 per share. At
its option,  Aon may redeem all or any part of the stock at any time on or after
November 1, 1997 at a redemption  price of $25.00 per share plus all accrued and
unpaid dividends. The holders of the stock have limited voting rights.

6.25%  Cumulative  Convertible  Exchangeable  Preferred Stock

At  December  31,  1995,  2,136,000  shares  of  6.25%  cumulative   convertible
exchangeable preferred stock were outstanding.  Dividends were cumulative at the
annual rate of $3.125 per share. In November 1996, each share of 6.25% preferred
stock was  converted by the holders into 1.22 shares of common stock for a total
of 2,606,000 common shares.

                                     - 34 -
<PAGE>
Series B Conversion Preferred Stock
At December 1, 1994,  1,439,000  shares of Series B conversion  preferred  stock
were outstanding and each share of stock was automatically  converted,  pursuant
to the stock's  terms,  into one and one half shares of common stock issued from
treasury.  Dividends were  cumulative at an annualized  rate of $3.04 per share.
Aon repurchased  1,210,000  shares of its  outstanding  stock for $58 million in
1994.  These  shares were  canceled and  retired.

Common Stock
Aon repurchased 1,287,000,  1,979,000 and 844,000 shares in 1996, 1995 and 1994,
respectively,  of its  common  stock,  primarily  to  provide  shares  for stock
compensation plans and the conversion of preferred stock.

Dividends
A summary of dividends incurred is as  follows:

(millions)     Years ended December 31      1996     1995     1994
- -------------------------------------------------------------------
Redeemable preferred stock                 $   2    $   2    $   2
8% cumulative perpetual
 preferred stock                              11       16       18
6.25% cumulative convertible
 exchangeable preferred stock                  5        7        7
Series B conversion preferred stock           --       --        6
Common stock                                 154      145      129
- -------------------------------------------------------------------
Total dividends incurred                    $172     $170     $162
- -------------------------------------------------------------------

Subsequent Event
In January 1997,  Aon created Aon Capital A, a statutory  business trust created
for the purpose of issuing mandatorily  redeemable  preferred capital securities
(capital  securities).  Aon  Capital A issued  $800  million  of 8.205%  capital
securities  in January  1997.  The  proceeds  from the  issuance  of the capital
securities were used to finance a portion of the acquisition of A&A. The capital
securities  are  subject  to  mandatory  redemption  on  January 1, 2027 or, are
redeemable in whole,  but not in part, at the option of Aon upon the  occurrence
of certain events.  Interest is payable semi-annually on the capital securities.

Statutory Capital and Surplus
Generally, the capital and surplus of Aon's insurance subsidiaries available for
transfer to the parent  company are  limited to the amounts  that the  insurance
subsidiaries'  statutory  capital and surplus exceed minimum  statutory  capital
requirements;  however,  payments of the amounts as dividends  may be subject to
approval  by  regulatory  authorities.  See note 6 for  possible  tax effects of
distributions  made  out  of  untaxed  earnings.

Net  statutory  income  of the insurance  subsidiaries (including LOV and UFLIC
through 1995 and the statutory gain on the sale of LOV and UFLIC in 1996),
is summarized as follows:

(millions)Years ended December 31  1996       1995      1994
- -------------------------------------------------------------
Life insurance                     $807       $197      $272
Property casualty                    71         58        34
=============================================================

Statutory capital and surplus of the insurance  subsidiaries  (including LOV and
UFLIC at December 31, 1995) is summarized as follows:

(millions)                 As of December 31  1996      1995
- -------------------------------------------------------------
Life insurance                                $612      $766
Property casualty                              364       296
=============================================================

9. EMPLOYEE BENEFITS

Savings and Profit Sharing Plans
Certain of Aon's  subsidiaries  maintain  a  contributory  savings  plan for the
benefit of United States salaried and commissioned  employees and a contributory
profit  sharing  plan  for  the  benefit  of  Canadian  salaried  employees  and
commissioned agents. The company contribution for the savings plan is based on a
match  of 100% of  employee  contributions  up to a  maximum  of 3% of  eligible
compensation.  Provisions made for these plans were $14 million, $14 million and
$13 million in 1996, 1995 and 1994, respectively.

Employee Stock Ownership Plan
Certain of Aon's  subsidiaries  maintain a leveraged ESOP for the benefit of the
United States salaried and certain commissioned employees.  Shares are allocated
to eligible employees over a period of ten years through 1998.  Contributions to
the ESOP amounted to $12 million,  $11 million and $9 million in 1996,  1995 and
1994, respectively.

Domestic Pension Plan
Certain  of Aon's  subsidiaries  maintain  a  non-contributory  defined  benefit
pension plan providing  retirement  benefits for salaried  employees and certain
commissioned  employees  in the  United  States  based on years of  service  and
salary.  Aon's funding policy is to contribute amounts to the plan sufficient to
meet the  minimum  funding  requirements  set forth in the  Employee  Retirement
Income Security Act of 1974,  plus such additional  amounts as Aon determines to
be appropriate from time to time.

A summary of the components of net periodic pension cost for the defined benefit
plans in 1996, 1995 and 1994 is as follows:

(millions)Years ended December 31  1996       1995      1994
- -------------------------------------------------------------
Defined benefit plan:
 Service cost-benefit earned       $ 21       $ 17      $ 21
  Interest cost on projected
   benefit obligation                21         19        17
 Actual return on plan assets       (51)       (66)       (3)
 Net amortization and deferral       29         44       (18)
- -------------------------------------------------------------
Net periodic pension cost          $ 20       $ 14      $ 17
=============================================================

The weighted average assumptions used in accounting for the defined benefit plan
were:

        Years ended December 31      1996       1995      1994
- ---------------------------------------------------------------
Assumed discount rate                 7.8%       7.5%      8.5%
Rate of compensation increase         5.0%       5.0%      5.0%
Expected long-term rate of
 return on plan assets                9.0%       9.0%      9.0%
===============================================================

                                     - 35 -
<PAGE>
In April 1996, Aon established a limited time early retirement incentive program
that provided  benefits through the defined benefit plan. The additional cost of
termination  benefits applicable for 1996,  resulting from the program,  was $19
million.  Also in 1996,  Aon completed the sales of LOV and UFLIC which resulted
in a  curtailment  gain of $8 million,  which is included in the gain on sale of
discontinued  operations.  As a result  of the  sales of these  units,  affected
employees  became fully vested in their accrued  benefits in the defined benefit
plan. During 1994, the Aon Pension Plan was amended to reduce the maximum amount
of compensation  that can be considered under the plan as required by law and to
provide increases in benefits to current  pensioners.  Net periodic pension cost
for 1994  decreased $2 million as a result of these  amendments.

The following  table sets forth the funded status and amounts  recognized in the
consolidated  statements of financial  position for Aon's U.S.  defined  benefit
pension plan.

(millions)              As of December 31     1996      1995
- -------------------------------------------------------------
Actuarial present value of benefit obligations:
Vested benefit obligation                     $255      $218
Accumulated benefit obligation                 261       224
- -------------------------------------------------------------
Projected benefit obligation                   305       286
Plan assets at fair value                      317       282
- -------------------------------------------------------------
Plan assets greater than (less than)
 projected benefit obligation                   12        (4)
Unrecognized net gain                          (63)      (26)
Unrecognized prior service cost                  1         2
- -------------------------------------------------------------
Pension cost included in other liabilities   $ (50)    $ (28)
=============================================================

Plan  assets  include  marketable  equity  securities,   deposit  administration
insurance  contracts and  corporate and  government  debt  securities  including
securities  issued by Aon totaling $35 million and $28 million in 1996 and 1995,
respectively. In addition, $186 million of plan assets were held under a special
contract with a subsidiary of Aon in 1995.

FOREIGN PENSION PLANS
Certain of Aon's foreign subsidiaries maintain contributory and non-contributory
defined  benefit  pension plans for employees  outside of the United States that
provide  retirement  benefits  based on service and salary.  Material  plans are
maintained in the United  Kingdom and The  Netherlands.  The funding  policy for
these plans is to  contribute  the amounts  required by the plan  provisions  or
applicable regulations, although additional amounts may be contributed from time
to time.

A summary  of the  components  of net  periodic  pension  cost for the  material
defined benefit plans, grouped by country, is as follows:

(millions)     Years ended December 31        1996       1995      1994
- ------------------------------------------------------------------------
United Kingdom:
 Service cost-benefit earned                  $ 11       $ 11      $  8
 Interest cost on projected
  benefit obligation                            17         15        10
 Actual loss (return) on plan assets           (28)       (29)        6
 Net amortization and deferral                   6         11       (20)
- ------------------------------------------------------------------------
Net periodic pension cost                     $  6       $  8      $  4
========================================================================
The Netherlands:
 Service cost-benefit earned                  $  4       $  4      $  2
 Interest cost on projected
  benefit obligation                             9          9         8
 Actual return on plan assets                  (11)       (11)       (9)
 Net amortization and deferral                  --         --         1
- ------------------------------------------------------------------------
Net periodic pension cost                     $  2       $  2      $  2
========================================================================

The weighted  average  assumptions  used in accounting for these defined benefit
plans were:

         Years ended December 31     1996       1995      1994
- ---------------------------------------------------------------
United Kingdom:
 Assumed discount rate                8.0%       9.0%      9.0%
 Rate of compensation increase        5.5%       7.0%      7.0%
 Expected long-term rate of
  return on plan assets              10.0%      10.0%     10.0%
- ---------------------------------------------------------------
The Netherlands:
 Assumed discount rate                7.0%       7.0%      7.0%
 Rate of compensation increase        4.0%       4.0%      4.0%
 Expected long-term rate of
  return on plan assets               7.0%       7.0%      7.0%
===============================================================

The following  tables set forth the funded status and the amounts  recognized in
the 1996 and 1995  consolidated  statements  of  financial  position  for  Aon's
foreign defined benefit pension plans.

United Kingdom:
(millions)               As of December 31    1996      1995
- -------------------------------------------------------------
Projected benefit obligation                  $617      $192
Plan assets at fair value                      680       212
- -------------------------------------------------------------
Plan assets in excess of projected
 benefit obligation                             63        20
Unrecognized net loss                            6         4
Unrecognized prior service cost                  1         1
Unrecognized net transition obligation           1         1
- -------------------------------------------------------------
Prepaid pension cost included in other assets $ 71      $ 26
=============================================================

The Netherlands:
(millions)               As of December 31    1996      1995
- -------------------------------------------------------------
Projected benefit obligation                  $136      $140
Plan assets at fair value                      165       168
- -------------------------------------------------------------
Plan assets in excess of projected
 benefit obligation                             29        28
Unrecognized net loss                           18        19
- -------------------------------------------------------------
Prepaid pension cost included in other assets $ 47      $ 47
=============================================================


                                     - 36 -
<PAGE>
The funded status and the amounts  recognized in the consolidated  statements of
financial  position  increased in 1996 as compared to 1995  primarily due to the
acquisition  of Bain  Hogg.

Postretirement  Benefits  Other Than  Pensions
Aon sponsors defined benefit  postretirement health and welfare plans that cover
both  salaried and  nonsalaried  employees in the U.S., as well as certain other
salaried  employees in Canada.  In the U.S., one plan provides medical benefits,
prior to and  subsequent  to Medicare  eligibility  and the other  provides life
insurance  benefits.  In Canada,  the plans  provide both  extended  health care
benefits and life insurance benefits.  The postretirement  health care plans are
contributory,  with retiree contributions  adjusted annually; the life insurance
plans  are  noncontributory.  The  employer's  liability  for  future  plan cost
increase  is  limited  in any year to 5% per  annum.  All plans are  funded on a
pay-as-you go basis.

In 1996, Aon completed the sales of LOV and UFLIC resulting
in a  curtailment  gain of $5 million  which was included in the gain on sale of
discontinued  operations.

The  following  table sets forth the plans'  combined funded status:

As of December 31                          1996                 1995
(millions)                          Medical      Life    Medical      Life
- ---------------------------------------------------------------------------
Accumulated
 postretirement
 benefit obligation:
  Retirees                             $17       $ 7        $15       $ 8
  Fully eligible active
   plan participants                     5         2          8         4
  Other active plan
   participants                          7         2          9         2
- ---------------------------------------------------------------------------
                                        29        11         32        14
Unrecognized prior service              16         5         22         6
Unrecognized net gain                   20         7         20         5
- ---------------------------------------------------------------------------
Accrued postretirement
 benefit liability                     $65       $23        $74       $25
===========================================================================

Net periodic postretirement benefit cost includes the following components:

(millions)     Years ended December 31   1996       1995      1994
- -------------------------------------------------------------------
Service cost                              $ 1        $ 1       $ 1
Interest cost                               3          3         4
Amortization of prior service              (7)        (7)       (6)
- -------------------------------------------------------------------
Net periodic postretirement
 benefit credit                           $(3)       $(3)      $(1)
===================================================================

For  measurement  purposes  in 1996,  1995 and 1994,  a 9.5%,  10.5% and  11.5%,
respectively,  annual rate of increase in the per capita cost of covered  health
care benefits  (trend rate) adjusted for actual current year cost experience was
assumed,  decreasing  gradually  to 6% in  year  2000  and  remaining  the  same
thereafter.  However,  with the employer  funding increase cap limited to 5% per
year,  net employer  trend rates are  effectively  limited to 5% per year in the
future.

Increasing  the assumed  health care cost trend  rates by one  percentage  point
would result in no change in the accumulated  postretirement  benefit obligation
(APBO) as of December 31, 1996 because of the 5% cap on future employer  funding
increases.

Assumptions used in determining the APBO are summarized below:


               As of December 31                1996      1995        1994
- ---------------------------------------------------------------------------
Weighted-average discount rate                   7.8%      7.5%        8.5%

Weighted-average rate of
 compensation increase                           5.0%      5.0%        5.0%
===========================================================================


10. STOCK COMPENSATION PLANS
Stock Award Plan
In 1994,  Aon's  stockholders  approved an amendment to the Aon Stock Award Plan
that  increased  the  aggregate  number of common  stock that Aon could award to
5,025,000 shares.  Generally,  the award plan requires the employees to complete
three  continuous years of service before the award begins to vest in increments
until the completion of a ten-year period of continuous employment.  In general,
most  awarded  shares are issued as they become  vested.  With  certain  limited
exceptions,  any break in  continuous  employment  will cause  forfeiture of all
unvested awards.  The  compensation  cost associated with each award is deferred
and amortized over the period of continuous  employment  using the straight line
method.

Aon common stock awards outstanding consist of the following:

(thousands)    Years ended December 31       1996       1995      1994
- -----------------------------------------------------------------------
Shares outstanding
 at beginning of year                       2,609      2,169     1,672
Granted                                     1,195        709       726
Vested and exercised                         (265)      (216)     (214)
Canceled                                      (66)       (53)      (15)
- -----------------------------------------------------------------------
Shares outstanding
 at end of year                             3,473      2,609     2,169
=======================================================================

Stock Option Plan
Under a nonqualified  stock option plan,  options to purchase  common stock were
granted to certain officers and employees of Aon and its subsidiaries at 100% of
market value on the date of grant. Generally, the option plan requires employees
to complete three  continuous  years of service before the options begin to vest
in  increments  until  the  completion  of a  seven-year  period  of  continuous
employment.

Aon adopted the  disclosure-only  option under  Statement  No. 123,
"Accounting  for  Stock-Based  Compensation,"  as of December 31,  1996.  If the
accounting  provisions of the new Statement had been adopted as of the beginning
of 1996,  the  effect on both the 1996 and 1995 net  income  and net  income per
share would have been immaterial.  Further, based on the current and anticipated
use of stock  options,  it is not  anticipated  that the impact of Statement No.
123's accounting provisions would be material in future periods.

                                     - 37 -
<PAGE>


A summary of Aon's stock option activity and related information consists of the
following:

<TABLE>
<CAPTION>


Years ended December 31       1996                  1995                 1994
- --------------------------------------------------------------------------------------
                       Weighted
                        Average
                       Exercise                           Price                 Price
(shares in thousands)    Shares     Price      Shares     Range     Shares      Range
- --------------------------------------------------------------------------------------
Beginning
<S>                    <C>            <C>       <C>      <C>         <C>       <C>
 outstanding           3,475          $32       3,346    $14-36      2,699     $14-36
Granted
 (at fair value)       1,023           52       1,086     32-38      1,134      31-36
Exercised               (488)          26        (747)    14-29       (353)     14-26
Canceled                (493)          35        (210)    17-36       (134)     14-36
- --------------------------------------------------------------------------------------
Ending
 outstanding           3,517           39       3,475     20-38      3,346      14-36
- --------------------------------------------------------------------------------------
Exercisable at
 end of year             310           29         425     20-35        648      14-32
- --------------------------------------------------------------------------------------
Options available
 for grant               863                    1,450                2,326
- --------------------------------------------------------------------------------------
</TABLE>

A summary of options outstanding and options exercisable at December 31, 1996 is
as follows:

<TABLE>
<CAPTION>
(shares in thousands)         Options Outstanding                 Options Exercisable
- ---------------------------------------------------------------------------------------
                                 Weighted
                Number            Average       Weighted          Number      Weighted
Range of   Outstanding          Remaining        Average     Exercisable       Average
Exercise        As of         Contractual       Exercise           As of      Exercise
Prices        12/31/96        Life(Years)          Price        12/31/96         Price
- ---------------------------------------------------------------------------------------
<C>                <C>               <C>          <C>                <C>        <C>
$24.50-$33.44      692               2.7          $28.94             235        $26.44
 33.96- 33.96      802               4.2           33.96              --            --
 34.25- 35.75      746               5.1           35.65              14         34.46
 35.83- 48.88      310               3.7           36.77              61         36.00
 51.50- 60.25      967               6.3           52.13              --            --
- ---------------------------------------------------------------------------------------
$24.50-$60.25    3,517               4.6          $38.56             310        $28.68
- ---------------------------------------------------------------------------------------
</TABLE>


11. FINANCIAL INSTRUMENTS
Financial Risk Management
Aon is  exposed  to market  risk from  changes  in  interest  rates and  foreign
currency  exchange rates. To manage the volatility  related to these  exposures,
Aon enters into various derivative transactions that have the effect of reducing
these  risks  by  creating  offsetting  market  exposures.  If Aon  did  not use
derivative contracts,  its exposure and market risk would be higher.

Derivative transactions are governed by a uniform set of policies and procedures
covering  areas  such  as  authorization,   counterparty  exposure  and  hedging
practices.  Positions are monitored  using  techniques  such as market value and
sensitivity analyses.

In  addition  to  creating  market  risks that  offset the  underlying  business
exposures,  certain  derivatives  also give rise to credit risks due to possible
non-performance by  counterparties.  The credit risk is generally limited to the
fair value of those  contracts  that are  favorable  to Aon. Aon has limited its
credit risk by  restricting  investments  in  derivative  contracts to a diverse
group of highly rated major financial  institutions and by using exchange-traded
instruments.  Aon closely monitors the  creditworthiness  of and exposure to its
counterparties and considers its credit risk to be minimal. At December 31, 1996
and 1995,  Aon placed  securities  in escrow  amounting  to $13  million  and $1
million, respectively, relating to these derivative contracts.

Interest Rate Risk  Management
Aon uses  interest  rate  derivative  contracts to manage the interest rate risk
associated with assets and liabilities  underlying its underwriting  businesses.
Interest rate derivatives are also utilized to manage the company's  funding and
other corporate risks.

Interest  rate swap  agreements  have been used  primarily  to manage  asset and
liability  durations.  Exchange-traded  Eurodollar futures,  used in conjunction
with basis rate swaps, are used to manage asset liability  durations  related to
various other crediting  arrangements emanating from other insurance businesses.
As of December 31, 1996 and 1995,  these swap  agreements  had the net effect of
shortening asset  durations.  Variable rates received on interest rate and basis
rate  swap  agreements  correlate  with  crediting  rates  paid  on  outstanding
liabilities.  The net  effect  of swap  payments  is  settled  periodically  and
reported in income. There is no settlement of underlying notional amounts.

Exchange-traded  treasury  futures  and options  are used  primarily  as a hedge
against  the  value of  Aon's  available  for sale  fixed  maturity  and  equity
investments.  Aon sells  futures as well as writes  call  options and limits its
risk  on  these  written  options  to  a  spread  by  purchasing  call  options.
Exchange-traded  futures and options are valued and settled  daily.  The premium
that Aon pays for purchased options and receives for written options  represents
the cost basis of the option until it expires or is closed.

Aon also  enters  into  interest  rate swap  agreements,  sells  exchange-traded
interest  rate futures and  purchases  interest  rate caps to limit its interest
expense on  short-term  borrowings.  The premium that Aon pays for interest rate
caps represents the cost basis of the position until it expires or is closed.

Aon performs frequent  analyses to measure the degree of correlation  associated
with its  derivative  programs.  Aon assesses  the  adequacy of the  correlation
analyses  results in  determining  whether  the  derivatives  qualify  for hedge
accounting.  The  premium  that  Aon pays or  receives  for  options  (including
interest rate caps and floors)  represents the cost basis of the option until it
expires or is closed.  Realized gains and losses on derivatives  that qualify as
hedges are  deferred  and  reported  as an  adjustment  of the cost basis of the
hedged  item.  Deferred  gains and losses are  amortized  into  income  over the
remaining life of the hedged item.  Outstanding  derivatives  that are hedges of
items carried at fair value are  reflected in the  financial  statements at fair
value with changes in the derivative fair value reported as unrealized gains and
losses directly in stockholders' equity.

In January 1997, Aon issued $800 million of 8.205% capital  securities (see note
8). To hedge its exposure to rising long-term interest rates associated with the
anticipated  debt issue,  Aon entered  into various  exchange-traded  derivative
contracts  including  treasury futures and options.  The hedge was in place from
December 1996 until January 1997.

Foreign  Exchange  Risk  Management
Aon uses  foreign  currency  futures,  options  and forward  contracts  to hedge
against the effects of foreign  currency  fluctuations on the translation of the
financial statements of Aon's
                                     - 38 -
<PAGE>
foreign operations. Generally, realized and unrealized gains and losses on those
derivatives are recorded directly to stockholders' equity, as a component of net
unrealized foreign exchange gains and losses.

Certain of Aon's foreign brokerage  subsidiaries  receive revenues in currencies
that differ from the currency in which their operating expenses are denominated.
To reduce the variability of cash flows from these  operations,  foreign forward
exchange contracts having settlement dates that are primarily less than one year
are used.  Related  gains or  losses  on these  contracts  are  reflected  as an
adjustment  to the  expense  component  on the  statement  of  income  when  the
currencies are exchanged to settle expense  commitments.  Contracts entered into
require  no  up-front  premium  and  settle  at the  expiration  of the  related
contract.

Notional and Other Data
The following are the notional amounts of Aon's outstanding  derivatives grouped
by the types of risks being managed:


(millions)              As of December 31                   1996     1995
- --------------------------------------------------------------------------
Interest rate and asset/liability duration management
  Net Eurodollar futures                                  $1,741     $820
  Treasury futures                                           220       --
  Call options                                                72       --
  Interest rate swaps--pay fixed                              90      260
  Interest rate swaps--receive fixed                          85       10
  Basis rate swaps--pay and receive variable                  90       70
Interest rate management for anticipated transactions
  Treasury futures                                           100       --
  Call options                                               250       --
  Put options                                                500       --
  Interest rate caps                                          22       72
Foreign currency management--forwards                        157       62
==========================================================================

During each of the years,  1996,  1995 and 1994, Aon amortized $3 million of net
deferred gains relating to derivatives  into income.  Realized losses related to
anticipated  transactions  were immaterial for the years ended December 31, 1996
and 1995.

The  interest  rates on Aon's  outstanding  swaps at  December 31 are
presented below:

                      Receive           Pay        Pay        Receive
                        Fixed      Variable      Fixed       Variable
- ----------------------------------------------------------------------
1996                  5.8-6.8%          5.6%   6.0-9.7%       5.6-6.0%

1995                       --            --    7.9-8.3%           5.4%
======================================================================

As of December  31,  1996,  the swaps have  maturities  ranging from May 1997 to
December  2026. Aon receives  variable  rates based on the one month  commercial
paper and the six month  London  Interbank  Offer Rate  (LIBOR)  rate.  Aon pays
variable rates based on the three- and six-month  LIBOR rates.  Basis rate swaps
mature in  December  2000 and  require  payments  based on the three month LIBOR
index and provide for receipts based on the two-year  treasury rate.  Eurodollar
futures,  with  maturities  ranging  from March  1997 to June 2001,  effectively
convert  the  variable  rate  basis  swap  payments  to  fixed  payments.  Other
outstanding  contracts  generally  have  lives  that are 90 days or less.

Other Financial Instruments
Aon has certain  investment  commitments to provide capital and fixed-rate loans
as well  as  certain  forward  contract  purchase  commitments.  The  investment
commitments,  which  would  be  collateralized  by  related  properties  of  the
underlying  investments,  involve  varying  elements of credit and market  risk.
Investment  commitments  outstanding  at December 31, 1996 and 1995 totaled $154
million and $196 million, respectively.

Subsidiaries of Aon have entered into  agreements  with financial  institutions,
whereby the  subsidiaries  sold  certain  receivables,  with  limited  recourse.
Agreements  provide  for sales of  receivables  on a  continuing  basis  through
September  1997.  As of  December  31,  1996 and 1995,  the  maximum  commitment
contained in these agreements was $1,155 million and $752 million, respectively.
Accounts  receivable  sold in 1996,  1995 and 1994  amounted to $1,726  million,
$1,253  million and $1,095  million,  respectively.  Outstanding  receivables of
$1,077  million and $687 million,  remained to be collected at December 31, 1996
and 1995,  respectively.  Aon's  credit risk  relates to amounts that may be due
under recourse provisions that could exceed recorded estimates.  At December 31,
1996 and 1995, this exposure was approximately $42 million.

Fair Value of Financial  Instruments
Accounting standards require the disclosure of fair values for certain financial
instruments.  The fair value  disclosures  are not  intended  to  encompass  the
majority of policy liabilities, various other non-financial instruments or other
intangible  assets  related  to Aon's  business.  Accordingly,  care  should  be
exercised in deriving  conclusions  about Aon's business or financial  condition
based on the fair  value  disclosures.  The  carrying  value  and fair  value of
certain of Aon's financial instruments are as follows:

As of December 31             1996                1995
- -------------------------------------------------------------
                     Carrying      Fair   Carrying      Fair
(millions)              Value     Value      Value     Value
- -------------------------------------------------------------
Assets:
 Fixed maturities and
  equity securities
  (note 4)             $3,705    $3,705     $8,693    $8,693
 Mortgage loans on
  real estate              29        29        632       684
 Policy loans              58        57        226       223
 Cash, receivables,
  short-term and
  other long-term
  investments           6,437     6,437      4,163     4,163
 Derivatives*              --        10          1         1
Liabilities:
 Investment type
  insurance contracts  $  507    $  509     $3,666    $3,711
 Short-term borrowings,
  premium payables
  and commissions
  and general expenses  5,134     5,134      3,638     3,638
 Notes payable            475       478        498       513
 Derivatives               --        --         --        24
=============================================================

*Derivatives  with a  carrying  value  of $21  million  and a fair  value of $21
million are included in other asset categories at December 31, 1996.



                                     - 39 -
<PAGE>

12. LITIGATION
Aon and its  subsidiaries are subject to numerous claims and lawsuits that arise
in the ordinary  course of business.  Some of these cases are being litigated in
jurisdictions  which have judicial  precedents and  evidentiary  rules which are
generally believed to favor individual  plaintiffs against corporate defendants.
The  damages  that  may  be  claimed  in  these  and  other   jurisdictions  are
substantial,  including in many instances  claims for punitive or  extraordinary
damages.  Accruals  for these  lawsuits  have been  provided  to the extent that
losses are deemed probable and are estimable.  Although the ultimate  outcome of
these suits cannot be ascertained and liabilities in  indeterminate  amounts may
be imposed  on Aon or its  subsidiaries,  on the basis of  present  information,
availability of insurance  coverages and advice received from counsel, it is the
opinion of management  that the  disposition or ultimate  determination  of such
claims and lawsuits will not have a material  adverse effect on the consolidated
financial position of Aon.


13. SEGMENT INFORMATION
Aon  Corporation  is a  multinational  holding  company.  Its  businesses  serve
consumers and  commercial  operations in North America,  South America,  Europe,
Africa,  Asia and Australia.  Aon's continuing  operations are concentrated into
two  core  businesses.  Insurance  brokerage  and  consulting  services  provide
services for commercial,  industrial and insurance  company  clients.  Insurance
underwriting  provides life, accident and health insurance and extended warranty
products for individual  consumers,  delivered through  controlled  distribution
channels.  Certain  reclassifications  of prior period segment  information have
been made to conform to the current period presentation. The segment information
located  in the  tables  on  pages  18  through  21 is  incorporated  herein  by
reference.

                                     - 40 -
<PAGE>
REPORTS BY INDEPENDENT AUDITORS AND MANAGEMENT


REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
BOARD OF DIRECTORS AND STOCKHOLDERS
Aon CORPORATION

We have audited the accompanying  consolidated  statements of financial position
of  Aon  Corporation  as  of  December  31,  1996  and  1995,  and  the  related
consolidated statements of income, stockholders' equity, and cash flows for each
of the three  years in the period  ended  December  31,  1996.  These  financial
statements   are  the   responsibility   of  the   Company'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,  the financial  statements  referred to above present fairly, in
all material respects, the consolidated financial position of Aon Corporation at
December 31, 1996 and 1995, and the  consolidated  results of its operations and
its cash flows for each of the three  years in the  period  ended  December  31,
1996, in conformity with generally accepted accounting principles.

As discussed in note 4, the Company changed its method of accounting for certain
investments in 1994.


 /s/ Ernst & Young LLP


Chicago, Illinois
February 11, 1997

REPORT BY MANAGEMENT

The  management  of  Aon  Corporation  is  responsible  for  the  integrity  and
objectivity of the financial  statements and other financial  information in the
annual report.  The statements  have been prepared in conformity  with generally
accepted accounting principles.  These statements include informed estimates and
judgments  for those  transactions  not yet  complete or for which the  ultimate
effects cannot be measured precisely.  Financial  information  elsewhere in this
report is consistent  with that in the financial  statements.  The  consolidated
financial statements have been audited by our independent  auditors.  Their role
is to render an independent  professional opinion on Aon's financial statements.

Management  maintains  a  system  of  internal  control  designed  to  meet  its
responsibilities  for reliable financial  statements.  The system is designed to
provide reasonable assurance,  at appropriate costs, that assets are safeguarded
and that  transactions  are properly  recorded and executed in  accordance  with
management's  authorization.  Judgments  are  required to assess and balance the
relative  costs and  expected  benefits of those  controls.  It is  management's
opinion  that its system of internal  control,  as of  December  31,  1996,  was
effective in providing  reasonable  assurance that its financial statements were
free of material misstatement.  In addition, management supports and maintains a
professional  staff of internal  auditors who coordinate audit coverage with the
independent   auditors  and  conduct  an  extensive  program  of  financial  and
operational audits.

The Board of Directors  selects an Audit  Committee  from among its members.  No
member of the Audit  Committee  is an employee of Aon.  The Audit  Committee  is
responsible to the Board for reviewing the  accounting  and auditing  procedures
and  financial  practices  of  Aon  and  for  recommending  appointment  of  the
independent  auditors.  The Audit Committee meets  periodically with management,
internal  auditors  and  independent  auditors  to  review  the work of each and
satisfy   itself   that   those   parties   are   properly   discharging   their
responsibilities.  Both the independent  auditors and the internal auditors have
free access to the Committee, without the presence of management, to discuss the
adequacy of internal control and to review the quality of financial reporting.

                                     - 41 -
<PAGE>
<TABLE>
<CAPTION>
SELECTED FINANCIAL DATA

(millions except common stock and per share data)        1996         1995         1994      1993      1992
- ------------------------------------------------------------------------------------------------------------
INCOME STATEMENT DATA
<S>                                                   <C>          <C>       <C>          <C>       <C>
     Brokerage commissions and fees                   $ 1,919      $ 1,651      $ 1,389   $ 1,190   $   714
     Premiums earned                                    1,527        1,427        1,322     1,278     1,275
     Net investment income                                384          329          257       227       223
     Realized investment gains                              8           13           19        30        24
     Other income                                          50           46           54        46        42
         Total revenue                                  3,888        3,466        3,041     2,771     2,278
- ------------------------------------------------------------------------------------------------------------
     Income from continuing operations                $   292   $      304      $   269   $   228   $   134
     Discontinued operations                               43           99           91        96        72
     Net income                                           335          403          360       324       127
     Operating income from continuing operations*         346          295          256       214       171
- ------------------------------------------------------------------------------------------------------------

PER SHARE DATA
     Income from continuing operations                $  2.48      $  2.57      $  2.28   $  1.91   $  1.24
     Discontinued operations                             0.39         0.91         0.86      0.90      0.69
     Net income                                          2.87         3.48         3.14      2.81      1.17
     Operating income from continuing operations*        2.97         2.49         2.16      1.79      1.60
- ------------------------------------------------------------------------------------------------------------


BALANCE SHEET DATA
ASSETS
     Investments                                     $  5,213      $10,639      $ 9,783   $ 9,652   $ 9,088
     Brokerage receivables                              3,566        2,264        1,882     1,615     1,524
     Other                                              4,944        6,833        6,257     5,012     3,678
                                                     -------------------------------------------------------
         Total assets                                 $13,723      $19,736      $17,922   $16,279   $14,290
- ------------------------------------------------------------------------------------------------------------

LIABILITIES AND STOCKHOLDERS' EQUITY
     Policy liabilities                               $ 4,360      $ 9,556      $ 9,310   $ 8,776   $ 7,759
     Insurance premiums payable                         4,144        2,723        2,409     1,948     1,866
     Notes payable                                        521          554          561       594       556
     General liabilities                                1,815        4,179        3,335     2,673     2,005
                                                     -------------------------------------------------------
         Total liabilities                             10,840       17,012       15,615    13,991    12,186
     Redeemable preferred stock                            50           50           50        --        --
     Stockholders' equity                               2,833        2,674        2,257     2,288     2,104
                                                     -------------------------------------------------------
         Total liabilities and stockholders' equity   $13,723      $19,736      $17,922   $16,279   $14,290
- ------------------------------------------------------------------------------------------------------------

COMMON STOCK DATA
     Dividends paid per share                          $ 1.42       $ 1.34       $ 1.26    $ 1.18    $ 1.11
     Stockholders' equity per share                     24.31        22.77        18.30     18.95     17.48
     Price range                                  643/4-471/2  507/8-313/8  353/4-291/4  39-307/8  36-261/8
     Market price at year-end                          62.125       49.875       32.000    32.250    36.000
     Common  stockholders                              13,030       13,520       14,163    14,615    14,746
     Shares  outstanding  (in millions)                 110.9        108.3        107.7     101.6     100.0
- ------------------------------------------------------------------------------------------------------------
<FN>
*Operating  income from continuing  operations  excludes aftertax realized
investment gains, 1996 special charges of $59 million,  a retroactive tax charge
in 1993 of $5  million,  the 1992  cumulative  effect of changes  in  accounting
principles of $80 million, and 1992 special charges of $54 million.
</FN>
</TABLE>

                                     - 42 -
<PAGE>
<TABLE>
<CAPTION>
QUARTERLY FINANCIAL DATA

(millions except common stock and per share data)          1Q           2Q           3Q           4Q         1996
- ------------------------------------------------------------------------------------------------------------------
INCOME STATEMENT DATA
<S>                                                    <C>          <C>          <C>        <C>          <C>
     Brokerage commissions and fees                    $468.0       $445.5       $454.5     $  550.8     $1,918.8
     Premiums earned                                    378.0        381.3        382.1        385.3      1,526.7
     Net investment income                               84.7         92.6         92.4        114.3        384.0
     Realized investment gains                             --           --          3.1          5.0          8.1
     Other income                                        11.4         13.0         12.2         14.0         50.6
                                                       -----------------------------------------------------------
         Total revenue                                  942.1        932.4        944.3      1,069.4      3,888.2
                                                       -----------------------------------------------------------
     Income from continuing operations                   96.5         65.3         83.8         46.2        291.8
     Discontinued operations                             22.4         21.0           --           --         43.4
     Net income                                         118.9         86.3         83.8         46.2        335.2
     Operating income from continuing operations*        96.5         84.8         81.8         82.5        345.6
- ------------------------------------------------------------------------------------------------------------------

PER SHARE DATA
     Income from continuing operations                 $ 0.84       $ 0.55       $ 0.72    $    0.38     $   2.48
     Discontinued operations                             0.20         0.19           --           --         0.39
     Net income                                          1.04         0.74         0.72         0.38         2.87
     Operating income from continuing operations*        0.84         0.73         0.70         0.71         2.97
- ------------------------------------------------------------------------------------------------------------------

COMMON STOCK DATA
     Dividends paid per share                          $ 0.34       $ 0.36       $ 0.36    $    0.36     $   1.42
     Stockholders' equity per share                     22.76        23.15        23.29        24.31        24.31
     Price range                                  553/8-483/4  557/8-497/8  541/2-471/2     643/4-54  643/4-471/2
     Average dividend yield                               2.6%         2.7%         2.8%         2.4%         2.5%
     Shares outstanding (in millions)                   108.5        107.9        108.3        110.9        110.9
     Average monthly trading volume (in millions)         3.0          4.7          2.3          3.6          3.4
==================================================================================================================

</TABLE>
<TABLE>
<CAPTION>
(millions except common stock and per share data)          1Q           2Q           3Q           4Q         1995
- ------------------------------------------------------------------------------------------------------------------
Income Statement Data
<S>                                                    <C>          <C>          <C>        <C>          <C>
     Brokerage commissions and fees                    $424.6       $400.2       $400.9     $  425.6     $1,651.3
     Premiums earned                                    335.7        364.7        358.1        368.0      1,426.5
     Net investment income                               80.9         77.5         86.6         84.4        329.4
     Realized investment gains                            1.1         (0.6)         8.8          3.8         13.1
     Other income                                        10.9         10.1         11.3         13.1         45.4
                                                       -----------------------------------------------------------
         Total revenue                                  853.2        851.9        865.7        894.9      3,465.7
                                                       -----------------------------------------------------------
     Income from continuing operations                   90.5         71.7         77.0         64.5        303.7
     Discontinued operations                             20.7         27.0         23.0         28.4         99.1
     Net income                                         111.2         98.7        100.0         92.9        402.8
     Operating income from continuing operations*        89.8         72.0         71.4         62.0        295.2
- ------------------------------------------------------------------------------------------------------------------

Per Share Data
     Income from continuing operations                 $ 0.77       $ 0.60       $ 0.66    $    0.54    $    2.57
     Discontinued operations                             0.19         0.25         0.21         0.26         0.91
     Net income                                          0.96         0.85         0.87         0.80         3.48
     Operating income from continuing operations*        0.76         0.60         0.61         0.52         2.49
- ------------------------------------------------------------------------------------------------------------------

Common Stock Data
     Dividends paid per share                          $ 0.32       $ 0.34       $ 0.34    $    0.34    $    1.34
     Stockholders' equity per share                     19.79        21.63        21.89        22.77        22.77
     Price range                                  371/2-313/8     38-355/8  413/4-361/4  507/8-401/2  507/8-313/8
     Average dividend yield                               3.7%         3.7%         3.4%         3.0%         3.3%
     Shares outstanding (in millions)                   108.0        107.1        108.0        108.3        108.3
     Average monthly trading volume (in millions)         1.4          1.8          2.1          3.1          2.1
==================================================================================================================

*Operating  income  from  continuing   operations   excludes  aftertax  realized
investment  gains of $5 million  and $8 million in 1996 and 1995,  respectively,
and special  charges of $19 million and $40 million in second  quarter  1996 and
fourth quarter 1996, respectively.
</TABLE>

                                     - 43 -

                Aon Corporation Subsidiaries
                As of December 31, 1996

      Corporate Name                                        Jurisdiction
- ---------------------------------------------               --------------
A. J. Norcott & Company (Holdings) Limited                  United Kingdom
A. J. Norcott & Partners (Northern) Limited                 United Kingdom
A. J. Norcott & Partners (Scotland) Limited                 United Kingdom
A. J. Norcott & Partners Limited                            United Kingdom
A. J. Norcott Benefit Consultants Limited                   United Kingdom
A.H. Laseur B.V.                                            Netherlands
AAA Auto Club South Finance, L.P.                           Illinois
AAA Missouri Automotive Financial Services                  Illinois
AOPA Insurance Agency, Inc.                                 Maryland
AOPA Insurance Agency, Inc.                                 Texas
APM Services Limited                                        Hong Kong
APS International Limited                                   United Kingdom
APS Life & Pensions Limited                                 United Kingdom
APS Overseas Investments Limited                            United Kingdom
ARM COVERAGE INC.                                           New York
ARS Holdings, Inc.                                          Illinois
ARS Holdings, Inc.                                          Louisiana
Acedale Co. Ltd.                                            Hong Kong
Adams & Porter Financial Services, Inc.                     Texas
Adams & Porter Services, Inc.                               Texas
Advantage Plus Insurance Services, Inc.                     Illinois
Adviser 151 Limited                                         United Kingdom
Affinity Insurance Services, Inc.                           Pennsylvania
Agencia Interoceanica de Subscripcion y
  Administracion S. A.                                      Mexico
Agostini Insurance Brokers Ltd.                             Trinidad
Agricola Training Limited                                   United Kingdom
Agricola Underwriting Limited                               United Kingdom
Agricola Underwriting Management Limited                    New Zealand
Agricola Underwriting Management Pty Ltd.                   Australia
Agricultural Risk Management Chile                          Chile
Agricultural Risk Management North America, Inc.            Kansas
Agricultural Risk Management Pacific Limited                New Zealand
Agricultural Risk Management Pty.                           Australia
Agricultural Risk Management, Limited                       United Kingdom
Airscope Insurance Services Limited                         United Kingdom
Alpenbeck Limited                                           United Kingdom
American Associates, Inc.                                   Texas
American Insurance Brokers, Ltd.                            Indiana
American National General Agencies, Inc.                    Colorado
Anchor Reinsurance Company, Ltd.                            Bermuda
Anchor Underwriting Managers, Ltd.                          Bermuda
Anscor Insurance Brokers Inc.                               Philippines
Aon Advisors (U.K.) Limited                                 United Kingdom
Aon Advisors, Inc.                                          Virginia
Aon Antillen nv                                             Netherland Antilles
Aon Aruba nv                                                Netherland Antilles
Aon Automotive Group, Inc.                                  Illinois
Aon Aviation, Inc.                                          Illinois
Aon Belgium nv                                              Belgium
Aon Broker Services, Inc.                                   Illinois
Aon Capital A                                               Delaware
Aon Capital Corporation                                     Delaware
Aon Capital Management, Inc.                                Delaware
Aon Capital Markets, Inc.                                   Delaware
Aon Captive Management, Ltd.                                U.S. Virgin Islands
Aon Captive Services (Nederland) bv                         Netherlands
Aon Captive Services Antillen nv                            Netherland Antilles
Aon Construction Services International Limited             United Kingdom
Aon Consulting & Insurance Services                         California
Aon Consulting Denmark A/S                                  Denmark
Aon Consulting Hong Kong Ltd.                               Hong Kong
Aon Consulting Limited                                      United Kingdom
Aon Consulting Nederland cv                                 Netherlands
Aon Consulting Pty Limited                                  Australia
Aon Consulting Thailand Ltd.                                Thailand
Aon Consulting Worldwide, Inc.                              Delaware
Aon Consulting, Inc.                                        Florida
Aon Consulting, Inc.                                        Massachusetts
Aon Consulting, Inc.                                        Michigan
Aon Consulting, Inc.                                        Minnesota
Aon Consulting, Inc.                                        New York
Aon Consulting, Inc.                                        Ohio
Aon Consulting, Inc.                                        Pennsylvania
Aon Consulting, Inc.                                        Texas
Aon Consulting, Inc. Agency                                 Texas
Aon Consulting, Limited Les Consultants Aon, Limitee        Quebec
Aon Denmark A/S                                             Denmark
Aon Direct Group Small Company Life and Health Agents       Illinois
Aon Direct Group, Inc.                                      California
Aon Eesti AS                                                Estland
Aon Employee Benefits of Ohio, Inc.                         Ohio
Aon Entertainment Risk Services Limited                     United Kingdom
Aon Entertainment, Ltd.                                     New York
Aon Financial Institutions Services, Inc.                   Illinois
Aon Financial Services Group of Colorado, Inc.              Colorado
Aon Financial Services Group of New York, Inc.              New York
Aon Financial Services Group, Inc.                          California
Aon Financial Services Group, Inc.                          Illinois
Aon Financial Services Group, Inc.                          Pennsylvania
Aon Financial Services Group, Inc.                          Texas
Aon Finland OY                                              Finland
Aon France S.A.                                             France
Aon GGI Acquisition Corporation, Inc.                       Texas
Aon General Agency, Inc.                                    Texas
Aon Groep Nederland bv                                      Netherlands
Aon Group, Inc.                                             Delaware
Aon Hamond & Regine, Inc.                                   New York
Aon Hazard Limited                                          United Kingdom
Aon Healthcare Risk, Inc.                                   Florida
Aon Holdings (Scandinavia) A/S                              Denmark
Aon Holdings Antillen nv                                    Netherland Antilles
Aon Holdings Asia Ltd.                                      Hong Kong
Aon Holdings Australia Ltd.                                 Australia
Aon Holdings Deutschland GmbH                               Germany
Aon Holdings Limited                                        United Kingdom
Aon Holdings New Zealand Pty. Ltd.                          New Zealand
Aon Holdings bv                                             Netherlands
Aon Hudig Groningen bv                                      Netherlands
Aon Hudig Hengelo bv                                        Netherlands
Aon Hudig Nijmegen bv                                       Netherlands
Aon Hudig Noordwijk bv                                      Netherlands
Aon Hudig Tilburg bv                                        Netherlands
Aon Hudig Venlo bv                                          Netherlands
Aon Hudig cv                                                Netherlands
Aon Iberia, Correduria de Seguros, S.A.                     Spain
Aon India Limited                                           United Kingdom
Aon Insurance Management Services - Virgin Islands, Inc.    U.S. Virgin Islands
Aon Insurance Management Services, Inc.                     Delaware
Aon Insurance Management of Texas, Inc.                     Texas
Aon Insurance Services                                      California
Aon Insurance Services, Inc.                                Pennsylvania
Aon Intermediaries (Bermuda) Ltd.                           Bermuda
Aon International Panama Ltd. S.A.                          Panama
Aon International bv                                        Netherlands
Aon Investment Consulting Inc.                              Florida
Aon Investment Holdings, Inc.                               Delaware
Aon Italia SpA                                              Italy
Aon Life Agency of Texas, Inc.                              Texas
Aon Lumley South Africa (Pty) Ltd.                          South Africa
Aon Magyarorszag Alkusz Kft.                                Hungary
Aon Managed Care, Inc.                                      California
Aon Management Hong Kong Ltd.                               Hong Kong
Aon Management Institute, Inc.                              Connecticut
Aon Medical Consultants, Inc.                               Delaware
Aon Nominees Limited                                        United Kingdom
Aon Norway A/S                                              Norway
Aon Overseas Holdings Limited                               United Kingdom
Aon Partnership Limited                                     United Kingdom
Aon Polska sp.z.o.o.                                        Poland
Aon Portugal, Corretores de Seguros, S.A.                   Portugal
Aon Properties Limited                                      United Kingdom
Aon Pyramid International Limited                           United Kingdom
Aon Re (Bermuda) Ltd.                                       Bermuda
Aon Re (Thailand) Ltd.                                      Thailand
Aon Re Accident & Health Limited                            United Kingdom
Aon Re Asia Ltd.                                            Singapore
Aon Re Aviation Limited                                     United Kingdom
Aon Re China Ltd.                                           Hong Kong
Aon Re Inc.                                                 Illinois
Aon Re International Limited                                United Kingdom
Aon Re Latinoamericana, S.A.                                Mexico
Aon Re Limited                                              United Kingdom
Aon Re Netherlands cv                                       Netherlands
Aon Re Non-Marine Limited                                   United Kingdom
Aon Re North American Limited                               United Kingdom
Aon Re Panama, S.A.                                         Panama
Aon Re Special Risks Limited                                United Kingdom
Aon Re UK Limited                                           United Kingdom
Aon Re Worldwide Limited                                    United Kingdom
Aon Re Worldwide, Inc.                                      Delaware
Aon Risk Consultants (Bermuda ) Ltd.                        Bermuda
Aon Risk Consultants (Europe) Limited                       United Kingdom
Aon Risk Consultants, Inc.                                  Illinois
Aon Risk Management Services Italia srl.                    Italy
Aon Risk Management Services Scandinavia A/S                Denmark
Aon Risk Resources Limited                                  United Kingdom
Aon Risk Resources, Inc.                                    Delaware
Aon Risk Services (Antilles) nv                             Netherland Antilles
Aon Risk Services (B.C.) Inc.                               British Columbia
Aon Risk Services (Barbados) Ltd.                           Barbados
Aon Risk Services (Bermuda) Ltd.                            Bermuda
Aon Risk Services (Cayman) Ltd.                             Cayman Islands
Aon Risk Services (Europe) S.A.                             Luxembourg
Aon Risk Services (Holdings) of Latin America, Inc.         Delaware
Aon Risk Services (Holdings) of the Americas, Inc.          Illinois
Aon Risk Services (Nederland) BV                            Netherlands
Aon Risk Services (Nederland) bv                            Netherlands
Aon Risk Services (Vermont) Inc.                            Vermont
Aon Risk Services Australia Ltd.                            Australia
Aon Risk Services Canada Inc.                               Canada
Aon Risk Services Companies, Inc.                           Delaware
Aon Risk Services France S.A.                               France
Aon Risk Services Holdings UK Limited                       United Kingdom
Aon Risk Services Hong Kong Ltd.                            Hong Kong
Aon Risk Services Inc.                                      Ontario
Aon Risk Services International (Holdings) Inc.             Delaware
Aon Risk Services Japan Ltd.                                Japan
Aon Risk Services Korea Ltd.                                Korea
Aon Risk Services Limited                                   United Kingdom
Aon Risk Services New Zealand Pty. Ltd.                     New Zealand
Aon Risk Services Thailand Ltd.                             Thailand
Aon Risk Services UK Limited                                United Kingdom
Aon Risk Services of Missouri, Inc.                         Missouri
Aon Risk Services of Texas, Inc.                            Texas
Aon Risk Services, Inc.                                     Delaware
Aon Risk Services, Inc. U.S.A.                              New York
Aon Risk Services, Inc. of Alabama                          Alabama
Aon Risk Services, Inc. of Arizona                          Arizona
Aon Risk Services, Inc. of Arkansas                         Arkansas
Aon Risk Services, Inc. of Central California
  Insurance Services                                        California
Aon Risk Services, Inc. of Colorado                         Colorado
Aon Risk Services, Inc. of Connecticut                      Connecticut
Aon Risk Services, Inc. of Florida                          Florida
Aon Risk Services, Inc. of Georgia                          Georgia
Aon Risk Services, Inc. of Hawaii                           Hawaii
Aon Risk Services, Inc. of Idaho                            Idaho
Aon Risk Services, Inc. of Illinois                         Illinois
Aon Risk Services, Inc. of Indiana                          Indiana
Aon Risk Services, Inc. of Kansas                           Kansas
Aon Risk Services, Inc. of Kentucky                         Kentucky
Aon Risk Services, Inc. of Louisiana                        Louisiana
Aon Risk Services, Inc. of Massachusetts                    Massachusetts
Aon Risk Services, Inc. of Michigan                         Michigan
Aon Risk Services, Inc. of Minnesota                        Minnesota
Aon Risk Services, Inc. of Montana                          Montana
Aon Risk Services, Inc. of Nebraska                         Nebraska
Aon Risk Services, Inc. of Nevada                           Nevada
Aon Risk Services, Inc. of New Jersey                       New Jersey
Aon Risk Services, Inc. of New York                         New York
Aon Risk Services, Inc. of Northern
  California Insurance Services                             California
Aon Risk Services, Inc. of Ohio                             Ohio
Aon Risk Services, Inc. of Oklahoma                         Oklahoma
Aon Risk Services, Inc. of Oregon                           Oregon
Aon Risk Services, Inc. of Pennsylvania                     Pennsylvania
Aon Risk Services, Inc. of Rhode Island                     Rhode Island
Aon Risk Services, Inc. of Southern
  California Insurance Services                             California
Aon Risk Services, Inc. of Tennessee                        Tennessee
Aon Risk Services, Inc. of Utah                             Utah
Aon Risk Services, Inc. of Virginia                         Virginia
Aon Risk Services, Inc. of Washington                       Washington
Aon Risk Services, Inc. of Washington, D.C.                 District of Columbia
Aon Risk Services, Inc. of Wisconsin                        Wisconsin
Aon Risk Services, Inc. of Wyoming                          Wyoming
Aon Risk Services, Inc. of the Carolinas                    North Carolina
Aon Risk Strategies, Inc.                                   Delaware
Aon Risk Technologies, Inc.                                 Delaware
Aon Securities Corporation                                  New York
Aon Select, Inc.                                            Pennsylvania
Aon Service Corporation                                     Illinois
Aon Sigorta Brokerlik ve Musavirlik AS                      Turkey
Aon South Africa (Pty) Ltd.                                 South Africa
Aon Special Risks, Inc.                                     Illinois
Aon Specialty Denmark A/S                                   Denmark
Aon Specialty Group of Tennessee, Inc.                      Tennessee
Aon Specialty Group, Inc.                                   Delaware
Aon Specialty Limited                                       United Kingdom
Aon Superannuation Pty Limited                              Australia
Aon Surety & Guarantee Limited                              United Kingdom
Aon Sweden AB                                               Sweden
Aon Technical Insurance Services, Inc.                      Illinois
Aon Technology Brokers, Inc.                                California
Aon Telecom, Inc.                                           Illinois
Aon Texas Acquisition Corporation                           Texas
Aon UK Limited                                              United Kingdom
Aon Vietnam                                                 Vietnam
Aon Warranty Group, Inc.                                    Illinois
Aon Warranty Services, Inc.                                 Illinois
Aon makelaars in assurantien bv                             Netherlands
Aon/Albert G. Ruben Company (New York) Inc.                 New York
Aon/Albert G. Ruben Insurance Services, Inc.                California
Artscope Insurance Services Limited                         United Kingdom
Artscope International Insurance Services Agency GmbH       Germany
Artscope International Insurance Services Limited           United Kingdom
Artscope International Kunstversicherungsmakler GmbH        Germany
Ascom Nijmegen B.V.                                         Netherlands
Asia Area Underwriters Ltd.                                 Hong Kong
Associated Brokers International                            Zimbabwe
Assuco Holdings Ltd.                                        Guernsey
Assurantie Groep Langeveldt c.v.                            Netherlands
Atkins Kroll Insurance Inc.                                 Guam
Attorneys' Advantage Insurance Agency, Inc.                 Illinois
Austpac Insurance Brokers Pty. Ltd.                         Australia
Auto Conduit Corporation, The                               Delaware
Automotive Development Centers, Inc.                        Illinois
Automotive Warranty Services of Florida, Inc.               Florida
Automotive Warranty Services, Inc.                          Delaware
Ayala-Bain Insurance Company                                Philippines
B.L. Carnie Hogg Robinson Ltd.                              United Kingdom
B.V. Assurantiekantoor Langeveldt-Schroder                  Netherlands
BEC Insurance Services Ltd.                                 United Kingdom
BH No. 1 Ltd.                                               United Kingdom
BRIC, Inc.                                                  North Carolina
Bain Clarkson (HK) Ltd.                                     Hong Kong
Bain Clarkson Limited                                       United Kingdom
Bain Clarkson Members Underwriting Agency Ltd.              United Kingdom
Bain Clarkson R.B. Ltd.                                     United Kingdom
Bain Clarkson Sweden A.B.                                   Sweden
Bain Clarkson Underwriting Management Ltd.                  United Kingdom
Bain Dawes (London) Ltd.                                    United Kingdom
Bain Dawes Services Ltd.                                    United Kingdom
Bain Hogg (Americas) Inc.                                   Florida
Bain Hogg (Fiji) LTd.                                       Fiji
Bain Hogg (Vanuatu) Ltd.                                    Vanuatu
Bain Hogg Australia (Holdings) Ltd.                         Australia
Bain Hogg Australia (Investments) Pty Ltd.                  Australia
Bain Hogg Australia Ltd.                                    Australia
Bain Hogg Chile S.A. Corredoros de Reasguro                 Chile
Bain Hogg Colombiana Ltd.                                   Colombia
Bain Hogg Group PLC                                         United Kingdom
Bain Hogg Hellas Ltd.                                       United Kingdom
Bain Hogg Holdings Limited                                  United Kingdom
Bain Hogg Insurance Management (Guernsey) Ltd.              Guernsey
Bain Hogg Insurance Management (Isle of Man) Ltd.           Isle of Man
Bain Hogg Intermediaro de Reaseguro SA de CV                Mexico
Bain Hogg International Holdings Ltd.                       United Kingdom
Bain Hogg International Ltd.                                Taiwan
Bain Hogg International Ltd.                                United Kingdom
Bain Hogg Ltd.                                              United Kingdom
Bain Hogg Malawi Ltd.                                       Malawi
Bain Hogg Management Ltd.                                   United Kingdom
Bain Hogg New Zealand Ltd.                                  New Zealand
Bain Hogg Pensions Pty Ltd.                                 Australia
Bain Hogg Robinson Inc.                                     Delaware
Bain Hogg Robinson Pty Ltd.                                 Australia
Bain Hogg Russian Insurance Brokers Ltd.                    Russia
Bain Hogg Solomon Islands Ltd.                              Solomon Islands
Bain Hogg Trustees Ltd.                                     United Kingdom
Bain Hogg Uganda Ltd.                                       Uganda
Bain Insurance Brokers Kenya Ltd.                           Kenya
Bankers Insurance Service Corp.                             Illinois
Baoviet Inchcape Insurance Brokers Ltd.                     Vietnam
BenefitsMedia, Inc.                                         Tennessee
Berkely Agency Ltd.                                         New York
Berkely Coverage Corporation                                New York
Berkely-ARM, Inc.                                           New York
BerkelyCare, LTD.                                           New York
Black Portch & Swain (Financial Services) Ltd.              United Kingdom
Black Portch & Swain Ltd.                                   United Kingdom
Blom & Van der Aa BV                                        Netherlands
Blom & Van der Aa Holding BV                                Netherlands
Boels Begault Holdings S.A.                                 Belgium
Brennan Group, Inc., The                                    Delaware
British Continental and Overseas Agencies (BCOA) SA         France
Broadgate Holdings Ltd.                                     United Kingdom
Bruno Sforni S.p.A.                                         Italy
Bruns Ten Brink & Co. b.v.                                  Netherlands
Bruns Ten Brink Groep b.v.                                  Netherlands
Bruns Ten Brink Herverzekeringen b.v.                       Netherlands
Bryson Associates Incorporated                              Pennsylvania
Bureau d'Assurances Pirrotte GmbH                           Luxembourg
Bureau d'Assurances Pirrotte GmbH & Co. KG                  Luxembourg
Burlington Insurance Services Ltd.                          United Kingdom
C.I.C. Realty, Inc.                                         Illinois
C.V. 'T Huys Ter Merwe                                      Netherlands
CCC Agency, Inc. of Illinois                                Illinois
CECAR - Compagnie Europeene de Courtage
  d'Assurances et de Reassurances SAe                       France
CECAR Deutschland GmbH                                      Germany
CECAR Inchcape Asia Ltd.                                    Hong Kong
CECAR Portugal                                              Portugal
CIA Deutschland Kreditversicherungsmakler
  und Beratungs GmbH                                        Germany
CIA Italia S.R.L.                                           Italy
CIA Link Ltd.                                               United Kingdom
CIA Supplier Finance Ltd.                                   United Kingdom
CIC - Hilldale, Inc.                                        Illinois
CIC - Wells, Inc.                                           Illinois
CIC - Westmont, Inc.                                        Illinois
CICA - Court, Inc.                                          Illinois
CICA Realty Corporation                                     Illinois
CICA Seguros de Mexico SA de CV                             Mexico
CICA Superannuation Nominees Pty. Ltd.                      Australia
CJP, Inc.                                                   Delaware
CRiON nv                                                    Belgium
California Group Services                                   California
Camperdown 100 Limited                                      United Kingdom
Camperdown 101 Limited                                      United Kingdom
Cananwill Corporation                                       Delaware
Cananwill, Inc.                                             California
Cananwill, Inc.                                             Pennsylvania
Carstens & Schues GmbH                                      Germany
Carstens & Schues Poland Ltd.                               Poland
Catz & Lips B.V.                                            Netherlands
Centris Services Limited                                    United Kingdom
Chemical & Oil Insurance Brokers (Pty) Ltd.                 South Africa
Christopher Paul Insurance Services Ltd.                    United Kingdom
Cinema Completions International, Inc.                      Delaware
Citadel Insurance Company                                   Texas
Claims Control Ltd.                                         New Zealand
Clarkson Bain Japan Ltd.                                    United Kingdom
Clarkson LMS Ltd.                                           United Kingdom
Clarkson Puckle Group, Ltd.                                 Unknown
Clarkson Puckle Holdings Ltd.                               United Kingdom
Clarkson Puckle Ibex Ltd.                                   United Kingdom
Clarkson Puckle Ltd.                                        United Kingdom
Clarkson Puckle Marine Holdings Ltd.                        United Kingdom
Clarkson Puckle Overseas Holdings Ltd.                      United Kingdom
Cogrup Correduria de Seguros, S.A.                          Spain
Cogrup, S.L.                                                Spain
Cole Booth Potter of New Jersey, Inc.                       New Jersey
Cole Booth Potter, Inc.                                     Pennsylvania
Columbia Automotive Services, Inc.                          Illinois
Combined Administrative Services Corp.                      Illinois
Combined Insurance Company of America                       Illinois
Combined Insurance Company of Ireland Limited               Ireland
Combined Insurance Company of New Zealand Limited           New Zealand
Combined Life Assurance Company Limited                     United Kingdom
Combined Life Assurance Company of Europe Limited           Ireland
Combined Life Insurance Company of Australia Limited        Australia
Combined Life Insurance Company of New York                 New York
Commercial Credit Corporation                               United Kingdom
Commercial and Political Risk Consultants Ltd.              United Kingdom
Commercial and Political Risk Services Ltd.                 United Kingdom
CompLogic, Inc.                                             Rhode Island
Consumer Program Administrators, Inc.                       Illinois
Contract & Investment Recoveries Ltd.                       United Kingdom
Correteje de Reaseguros Bain Hogg Venezolana C.A.           Venezuela
Coughlan General Insurances Limited                         Ireland
Credit & Political Insurance Services Ltd.                  United Kingdom
Credit & Political Risks Reinsurance Consultants Ltd.       United Kingdom
Credit Indemnity & Financial Services Ltd.                  United Kingdom
Credit Insurance Associates Inc.                            California
Credit Insurance Research Unit Ltd.                         United Kingdom
Credit International Associates Inc.                        New York
Crotty MacRedmond Insurance Limited                         Ireland
Customer Loyalty Institute                                  Michigan
D. Hudig & Co. b.v.                                         Netherlands
DUO A/S                                                     Norway
Dealer Development Services, Ltd.                           United Kingdom
Deanborne Limited                                           United Kingdom
Dobson Park L. G. Limited                                   Guernsey
Document Risk Management Limited                            United Kingdom
Dominion Mutual Insurance Brokers Ltd.                      Canada
Don Flower Aviation Underwriters, Inc.                      Kansas
Downes & Burke (Special Risks) Ltd.                         United Kingdom
Dreadnaught Insurance Company Limited                       Bermuda
DuPage Care Administrators, Inc.                            Illinois
Duoband Enterprises Ltd.                                    United Kingdom
E. Lillie & Co. Limited                                     United Kingdom
ENTAB Insurance Services Ltd.                               United Kingdom
ERAS (International) Ltd.                                   United Kingdom
Eastaf Holdings Ltd.                                        United Kingdom
Edgar Ward Ltd.                                             United Kingdom
Edward Lumley & Sons (Underwriting Agencies) Ltd.           United Kingdom
Elektrorisk Beheer bv                                       Netherlands
Elm Lane Limited                                            United Kingdom
Employee Benefit Communications, Inc.                       Florida
Entertainment Managers Insurance Services, Inc.             California
Entertainment Managers Insurance Services, Inc.             Ontario
Equiscope Insurance Services Limited                        United Kingdom
Ernest A. Notcutt & Co. Ltd.                                United Kingdom
Ernest A. Notcutt (Overseas) Ltd.                           United Kingdom
Ernest Notcutt Insurance Services Ltd.                      United Kingdom
Europa Services Ltd.                                        Malta
ExcelNet (Guernsey) Ltd.                                    Guernsey
ExcelNet Ltd.                                               United Kingdom
Excess Underwriters Agency, Inc.                            New York
Expatriate Consultancy Limited, The                         United Kingdom
Fabels-Versteeg b.v.                                        Netherlands
Far East Agency                                             Korea
Finance Associates, Inc.                                    Texas
Financial Solutions Insurance Services of California, Inc.  California
Financial Solutions Insurance Services, Inc.                Illinois
France Fenwick Limited                                      United Kingdom
Frank B. Hall & Co. Holdings (N.Z.) Limited                 New Zealand
Frank B. Hall (Reinsurance) France S.A.                     France
Frank B. Hall (Underwriting Managers) Ltd.                  Bermuda
Frank B. Hall Insurance Brokers (S) Pte. Ltd.               Singapore
Frank B. Hall Ireland Ltd.                                  Ireland
Frank B. Hall Management Services Pty. Ltd.                 Australia
Frank B. Hall Re (Latin America) Inc.                       Panama
Friis & Company, Inc.                                       California
G.E.F. Insurance Ltd.                                       U.S. Virgin Islands
GBV Gesellschaft Fur Betriebliche Beratung
  und verwaltung GmbH                                       Germany
Garantie Europeene de Publication S.A.                      France
Gardner Mountain Financial Services Ltd.                    United Kingdom
Gardner Mountain Management Services Ltd.                   United Kingdom
Gardner Mountain Trustees Ltd.                              United Kingdom
Gateway Alternatives, L.L.C.                                Delaware
Gateway Insurance Company, Ltd.                             Bermuda
Gilman Swire Willis Ltd.                                    Hong Kong
Go Pro Agency, Inc. of San Antonio                          Texas
Go Pro Life Agency, Inc. of San Antonio                     Texas
Go Pro Underwriting Managers of Virginia, Inc.              Virginia
Go Pro Underwriting Managers, Inc.                          Texas
Godwins (Overseas) Limited                                  United Kingdom
Godwins (Trustees) Limited                                  United Kingdom
Godwins Acquisition Co.                                     North Carolina
Godwins Group Limited                                       United Kingdom
Godwins Limited                                             United Kingdom
Godwins Securities, Inc.                                    Washington
Gotuaco del Rosario & Associates, Inc.                      Philippines
Greville Baylis Parry & Associates Ltd.                     United Kingdom
Greyfriars Marketing Services Pty Ltd.                      Australia
Growth Enterprises Ltd.                                     Bahamas
H.A.R.B. Ltd.                                               United Kingdom
H.L. Puckle (Underwriting) Ltd.                             United Kingdom
H.Z. Financial, L.P.                                        Illinois
HHL (Taiwan) Ltd.                                           Taiwan
HHL Reinsurance Brokers Inc.                                Philippines
HHL Reinsurance Brokers Pte. Ltd.                           Singapore
HHL Reinsurance Services Sdn. Bhd.                          Malaysia
HLS Hudig-Langeveldt Stanner GmbH                           Germany
HRGM 1989 Ltd.                                              United Kingdom
HRGM Cargo Ltd.                                             United Kingdom
HRGM Ltd.                                                   United Kingdom
HRGM Management Services Ltd.                               United Kingdom
HRGM Marine Ltd.                                            United Kingdom
Hadenmead Ltd.                                              United Kingdom
Hall & Company (Overseas) Ltd.                              United Kingdom
Hall & Company (UK) Ltd.                                    United Kingdom
Hansa Hoken GmbH Versicherungsmakler                        Germany
Hanseatische Assekuranz Kontor GmbH                         Germany
Hanseatische Assekuranz Vermittlungs AG                     Germany
Harbour Pacific Holdings Pty., Ltd.                         Australia
Harbour Pacific Underwriting Management Pty Limited         Australia
Havag Hudig-Langeveldt GmbH                                 Germany
Heath Hudig Langeveldt Pte Ltd.                             Singapore
Heath Hudig Langeveldt Sdn. Bhd.                            Malaysia
Heinz Hahn GmbH                                             Germany
Heli Agency                                                 Korea
Hellenic Bain Hogg S.A.                                     Greece
Highplain Limited                                           United Kingdom
Hobbs & Partners Ltd.                                       United Kingdom
Hodgson McCreery & Company Limited                          United Kingdom
Hogg Automotive Insurance Services Ltd.                     United Kingdom
Hogg Group Overseas Ltd.                                    United Kingdom
Hogg Group plc                                              United Kingdom
Hogg Robinson & Gardner Mountain (Insurance) Ltd.           United Kingdom
Hogg Robinson (Nigeria) Unlimited                           Nigeria
Hogg Robinson (Scotland) Ltd.                               Scotland
Hogg Robinson Holdings (Pty) Ltd.                           South Africa
Hogg Robinson Illinois Inc.                                 Illinois
Hogg Robinson Insurance Brokers Inc.                        California
Hogg Robinson Investment Holdings (Pty) Ltd.                South Africa
Hogg Robinson North America Inc.                            Delaware
Hogg Robinson Services (Kenya) Ltd.                         Kenya
Hudig-Langeveldt Berlin GmbH                                Germany
Hudig-Langeveldt Coens N.V.                                 Belgium
Hudig-Langeveldt Janson Elffers B.V.                        Netherlands
Hudig-Langeveldt Kyoritsu Ltd.                              Japan
Hudig-Langeveldt Makelaardij in Assurantien bv              Netherlands
Hudig-Langeveldt Merwestad bv                               Netherlands
Hudig-Langeveldt Mibrag Versicherungs Vermittlungs GmbH     Germany
Hudig-Langeveldt Pensioenbureau B.V.                        Netherlands
Hudig-Langeveldt Reinsurance B.V.                           Netherlands
Hudig-Langeveldt Saat B.V.                                  Netherlands
Hudig-Langeveldt Schreinemacher V.O.F.                      Netherlands
Hudig-Langeveldt Schroder Versicherungsvermittlung GmbH     Germany
Huntington T. Block Insurance Agency, Inc.                  District of Columbia
Huntington T. Block Insurance Agency, Inc.                  Ohio
IRISC (London) Limited                                      United Kingdom
IRISC L.L.C.                                                Delaware
IRISC Limited                                               United Kingdom
IRISC Specialty, Inc.                                       Delaware
IRISC, Inc.                                                 New Jersey
ITA Insurance, Inc.                                         Utah
Ibex Managers Ltd.                                          Kenya
Impact Forecasting, L.L.C.                                  Illinois
Inchcape Continental Insurance Holdings
  (Eastern Europe) Ltd.                                     Cyprus
Inchcape Continental Insurance Holdings BV                  Netherlands
Inchcape H.R. (Asia) Ltd.                                   Hong Kong
Inchcape Insurance Agencies (HK) LTd.                       Hong Kong
Inchcape Insurance Agencies Pte Ltd.                        Singapore
Inchcape Insurance Brokers (HK) Ltd.                        Hong Kong
Inchcape Insurance Brokers (M) Sdn Bhd                      Malaysia
Inchcape Insurance Brokers (Thailand ) Ltd.                 Thailand
Inchcape Insurance Brokers Pte Ltd.                         Singapore
Inchcape Insurance Holdings (HK) Ltd.                       Hong Kong
Inchcape Insurances (Macau) Ltd.                            Macau
Independent Dealer Services, Inc.                           Missouri
Inmobiliaria Ramos Rosada, S.A. de C.V.                     Mexico
Insurance Brokers Service, Inc.                             Illinois
Insurance Holdings Africa Ltd.                              Kenya
Insurance Underwriters Agency, Inc.                         Arizona
Insurmark Agency Corporation                                Ohio
Interbroke Ltd.                                             Switzerland
Interims Limited                                            United Kingdom
International Industrial Insurances Limited                 Ireland
International Insurance Brokers Ltd.                        Jamaica
International Shipowners Mutual Insurance
  Association Limited                                       Bermuda
Interocean (Italia) S.p.A.                                  Italy
Interocean Reinsurance Company, S.A.                        Panama
Investment Facility Company Four One Two (Pty) Ltd.         South Africa
Investment Insurance International (Managers) Ltd.          United Kingdom
ItalCECAR S.p.A.                                            Italy
J.C.J. Van Dalen Beheer B.V.                                Netherlands
J.H. Blades & Co. (Agency), Inc.                            Texas
J.H. Blades & Co., Inc.                                     Texas
J.H. Blades Insurance Services                              California
J.H. Blades, Inc.                                           Oklahoma
J.H. Lea & Company, Inc.                                    Illinois
J.S. Johnson & Co.                                          Bahamas
JFS (Sudamerica) SA                                         Uruguay
JFS Fenchurch Limited                                       United Kingdom
JFS Greig Fester Limited                                    United Kingdom
James S. Kemper & Co. International Ltd.                    Bermuda
Jenner Fenton Slade (Special Risks) Limited                 United Kingdom
Jenner Fenton Slade Group Limited                           United Kingdom
Jenner Fenton Slade Limited                                 United Kingdom
Jenner Fenton Slade Political Risks Limited                 United Kingdom
Jenner Fenton Slade Reinsurance Brokers Limited             United Kingdom
Jenner Fenton Slade Surety and Specie Limited               United Kingdom
John Scott Insurance Brokers Limited                        United Kingdom
Jonny Pape GmbH                                             Germany
Joseph U. Moore, Inc.                                       Florida
Jover Prevision Correduria de Seguros                       Spain
K & K Insurance Group of Florida, Inc.                      Florida
K & K Insurance Group, Inc.                                 Indiana
K & K Insurance Specialties, Inc.                           Indiana
K & K Specialties, Inc.                                     Indiana
K & K of Nevada, Inc.                                       Nevada
Karl Alt & Co. GmbH                                         Germany
Keeling & Company                                           California
Key-Royal Automotive Company, Inc.                          Alabama
Kininmonth Limited                                          Ireland
Kroller Holdings B.V.                                       Netherlands
L & G LMX Limited                                           United Kingdom
L & G Seascope Insurance Holdings Limited                   United Kingdom
Langeveldt Groep B.V.                                       Netherlands
Langeveldt de Vos b.v.                                      Netherlands
Laurila, Kauriala & Grig Ltd.                               Russia
Laverack & Haines, Inc.                                     New York
Lescorp Limited                                             United Kingdom
Leslie & Godwin (C.I.) Limited                              Guernsey
Leslie & Godwin (Reinsurance) Copenhagen A/S                Denmark
Leslie & Godwin (Scotland) Limited                          Scotland
Leslie & Godwin (U.K.) Limited                              United Kingdom
Leslie & Godwin (WFG) Limited                               United Kingdom
Leslie & Godwin AXL Limited                                 United Kingdom
Leslie & Godwin Aviation Holdings Limited                   United Kingdom
Leslie & Godwin Aviation Limited                            United Kingdom
Leslie & Godwin Aviation Reinsurance Services Limited       United Kingdom
Leslie & Godwin Financial Risks Limited                     United Kingdom
Leslie & Godwin GmbH                                        Germany
Leslie & Godwin Group Limited                               United Kingdom
Leslie & Godwin Insurance Brokers Ltd.                      Ontario
Leslie & Godwin Insurance Brokers, Inc.                     New York
Leslie & Godwin International Limited                       United Kingdom
Leslie & Godwin Investments Limited                         United Kingdom
Leslie & Godwin Limited                                     United Kingdom
Leslie & Godwin Marine Holdings Limited                     United Kingdom
Leslie & Godwin Non-Marine Limited                          United Kingdom
Leslie & Godwin Overseas Reinsurance Holdings Limited       United Kingdom
Leslie & Godwin Reinsurance Holdings Limited                United Kingdom
Lloyd Paulista Corretores de Seguros e Reaseguros S.A.      Brazil
London General Holdings Limited                             United Kingdom
London General Insurance Company Limited                    United Kingdom
Loss Management Group Ltd.                                  United Kingdom
Lowndes Lambert Insurance Limited                           Ireland
Lumley Employee Benefits (Pty) Ltd.                         South Africa
Lumley Insurance Brokers (Pty) Ltd.                         South Africa
Lumley JFS Limited                                          United Kingdom
Lumley Municipal & General Insurance Brokers
  (Natal) (Pty) Ltd.                                        South Africa
Lumley Municipal & General Insurance Brokers
  (Orange Free State) (Pty)Ltd.                             South Africa
Lumley Municipal & General Insurance Brokers (Pty) Ltd.     South Africa
Lumley Municipal & General Insurance Brokers
  (Transvaal) (Pty) Ltd.                                    South Africa
Lumley Petro-Energy Insurance Brokers (Pty) Ltd.            South Africa
Lynn & Schaller Insurance Brokers, Inc.                     California
M.I.B. Holdings Co. Ltd.                                    Malta
MAB Insurance Services Ltd.                                 United Kingdom
MC Brokers Co. Ltd.                                         Thailand
MacDonagh & Boland (International) Limited                  Ireland
MacDonagh & Boland Group Limited                            Ireland
MacDonagh Boland Beech Hill Limited                         Ireland
MacDonagh Boland Crotty MacRedmond Limited                  Ireland
MacDonagh Boland Cullen Duggan Limited                      Ireland
MacDonagh Boland Foley Woollam Limited                      Ireland
Macey Clifton Walters Limited                               United Kingdom
Macey Williams Insurance Services Limited                   United Kingdom
Macey Williams Limited                                      United Kingdom
Madison Intermediaries Pty. Limited                         Australia
Madison Reinsurance Holdings, Inc.                          Illinois
Mahamy Company plc (Rollins Hudig Hall Iran)                Iran
Maritime Underwriters, Ltd.                                 Bermuda
Marketing and Training Resources, Inc.                      Illinois
Martec Australia Pty Limited                                Australia
Martec Finance Pty Limited                                  Australia
Martin Boyer Company, Inc.                                  Illinois
Mayflower National Life Insurance Company                   Indiana
Media/Professional Insurance Agency Limited                 United Kingdom
Media/Professional Insurance Agency, Inc.                   Missouri
Mediterranean Insurance Brokers Ltd.                        Malta
Mediterranean Insurance Training Centre                     Malta
Minahan Reinsurance Management Limited                      United Kingdom
Morency, Weible & Sapa, Inc.                                Illinois
Motorists Service Corporation                               Delaware
Motorplan Limited                                           United Kingdom
Muirfield Underwriters, Ltd.                                Delaware
NB Life Agents, Inc.                                        New York
NSU Benefit Corporation                                     Indiana
National Care Provider Insurance, Inc.                      California
National Product Care Company                               Illinois
National Sports Underwriters, Inc.                          Indiana
Nicholson Chamberlain Colls Australia Limited               Australia
Nicholson Chamberlain Colls Group Limited                   United Kingdom
Nicholson Chamberlain Colls Marine Limited                  United Kingdom
Nicholson Jenner Leslie Group Limited                       United Kingdom
Nicholson Leslie (North America) Limited                    United Kingdom
Nicholson Leslie Accident & Health Limited                  United Kingdom
Nicholson Leslie Agencies Limited                           United Kingdom
Nicholson Leslie Asia Pte Ltd                               Singapore
Nicholson Leslie Australia Holdings Limited                 Australia
Nicholson Leslie Aviation Limited                           United Kingdom
Nicholson Leslie Aviation Reinsurance Brokers               United Kingdom
Nicholson Leslie BankAssure Limited                         United Kingdom
Nicholson Leslie Bankscope Insurance Services Limited       United Kingdom
Nicholson Leslie Bankscope Marine Insurance Consultants     United Kingdom
Nicholson Leslie Energy Resources Limited                   United Kingdom
Nicholson Leslie Financial Institutions Limited             United Kingdom
Nicholson Leslie International (Reinsurance Brokers)
  Limited                                                   United Kingdom
Nicholson Leslie International Limited                      United Kingdom
Nicholson Leslie Investments Limited                        United Kingdom
Nicholson Leslie Italia S.P.A.                              Italy
Nicholson Leslie Limited                                    United Kingdom
Nicholson Leslie Management Services Limited                United Kingdom
Nicholson Leslie Marine Limited                             United Kingdom
Nicholson Leslie Nederland Reinsurance brokers cv           Netherlands
Nicholson Leslie Non-Marine Reinsurance Brokers Limited     United Kingdom
Nicholson Leslie North American Reinsurance Brokers,
  Limited                                                   United Kingdom
Nicholson Leslie Property Limited                           United Kingdom
Nicholson Leslie Special Risks Limited                      United Kingdom
Nicholson Leslie Special Risks Limited                      United Kingdom
Nicholson Stewart-Brown Limited                             United Kingdom
North Derbyshire Finance Company Limited, The               United Kingdom
Nova Reinsurance Brokers, Inc.                              Illinois
OUM & Associates of California, A Corporation               California
OUM & Associates of New York, A Corporation                 New York
OUM & Associates of Ohio, A Corporation                     Ohio
OUM & Associates, A Corporation                             Washington
OUM Risk Consultants, Inc.                                  Washington
OWA Hoken (UK) Limited                                      United Kingdom
OWA Insurance Services (France) SA                          France
OWA Insurance Services Austria Gesellschaft mbH             Austria
OWA Insurance Services Austria GmbH & Co. KG                Austria
OWA Insurance Services GmbH                                 Germany
Oak Brook Holding, Inc.                                     Delaware
Oak Brook Life Insurance Company                            Arizona
Ohrinsoo Agency                                             Korea
Olandis Insurance Agency, Inc.                              Illinois
Olarescu & B. I. Davis Asesores y Corredores
  de Seguros S.A.                                           Peru
Old RHH North, Inc.                                         California
P M R Re, Inc.                                              New York
P.I. Consultants Ltd.                                       Hong Kong
PLCM Group, Inc.                                            Florida
PLCM Group, Inc.                                            Illinois
PLCM Group, Inc.                                            Pennsylvania
PT RNJ Ratna Nusa Jaya                                      Indonesia
Pacific Wholesale Insurance Brokers Pty Limited             Australia
Pandimar Consultants, Inc.                                  New York
Paribas Assurantien B.V.                                    Netherlands
Parker Risk Management (Barbados) Ltd.                      Barbados
Parker Risk Management (Bermuda) Ltd.                       Bermuda
Parker Risk Management (Cayman) Ltd.                        Cayman Islands
Parker Risk Management (Guernsey) Ltd.                      Guernsey
Parker Risk Management (S) Pte Ltd                          Singapore
Parker Risk Management, Inc.                                Colorado
Pat Ryan & Associates, B.V.                                 Netherlands
Paul J.F. Schultz oHG                                       Germany
Pernas HHL Insurance Brokers Sdn Bhd                        Malaysia
Pernas HHL Reinsurance Brokers Sdn. Bhd.                    Malaysia
Pinerich Ltd.                                               Northern Ireland
Poland Puckle Insurance Brokers Ltd.                        United Kingdom
Preferred Risk Strategies, A Corporation                    Washington
Premier Auto Finance, Inc.                                  Delaware
Premier Auto Finance, L.P.                                  Illinois
Product Care, Inc.                                          Illinois
Production Life Insurance Company                           Arizona
Professional Sports Insurance Co. Ltd.                      Bermuda
Progressive Ideal Sdn Bhd.                                  Malaysia
Property Owners Database Limited                            United Kingdom
Provider Services, Ltd.                                     Bermuda
Pyramid Services, Inc.                                      Connecticut
R.E.I. (NSW) Insurance Brokers Pty. Ltd.                    Australia
R.E.I.A. Insurance Brokers Pty. Ltd.                        Australia
R.G. Reis (Management Services) Ltd.                        United Kingdom
R.G. Reis Life Consultants Ltd.                             United Kingdom
R.G. Reis Pension Fund Trustees Ltd.                        United Kingdom
RAMRO y Asociados, S.C.                                     Mexico
RBH Acquisition Co.                                         Delaware
RBH General Agencies (Canada) Inc.                          Quebec
RHH Empreendimentos e Servicos Ltda.                        Brazil
RHH Surety & Guarantee Limited                              United Kingdom
RIP Services Limited                                        Guernsey
Resource Insurance Services, Inc.                           Indiana
Revasa S.p.A.                                               Italy
Risk Management Consultants Ltd.                            United Kingdom
Rockford Holding, Inc.                                      Delaware
Rockford Life Insurance Company                             Arizona
Rollins Heath (Japan) Ltd.                                  Japan
Rollins Heath Korea Co. Ltd.                                Korea
Rollins Hudig Hall & Co. (N.S.W.) Pty. Ltd.                 Australia
Rollins Hudig Hall (Hong Kong) Ltd.                         Hong Kong
Rollins Hudig Hall (Nederland) Limited                      United Kingdom
Rollins Hudig Hall (Scandinavia) A/S                        Norway
Rollins Hudig Hall (Singapore) Pte Ltd                      Singapore
Rollins Hudig Hall Associates B.V.                          Netherlands
Rollins Hudig Hall Ceska Republika spol. s.r.o.             Czech Republic
Rollins Hudig Hall Finance bv                               Netherlands
Rollins Hudig Hall Insurance Brokers ZAO                    Russia
Rollins Hudig Hall Mexico Agente De Seguros Y
  De Fianzas, S.A. De C.V.                                  Mexico
Rollins Hudig Hall Middle East                              United Arab Emirates
Rollins Hudig Hall Netherlands b.v.                         Netherlands
Rollins Hudig Hall Services Limited                         United Kingdom
Rollins Hudig Hall Slovensko spol.s r.o.                    Slovak Republic
Rollins Hudig Hall Sweden AB                                Sweden
Rollins Hudig Hall Versicherungsmakler Gesellschaft m.b.H.  Austria
Rollins Hudig Hall do Brazil Corretora de Seguros Ltda.     Brazil
Rollins Hudig Hall of Alaska, Inc.                          Alaska
Rollins Technical Services Co.                              Illinois
Ropeco Pty Ltd.                                             Australia
Rostron Hancock Ltd.                                        United Kingdom
Roundwise Limited                                           United Kingdom
Ryan Insurance Group France S.A.R.L.                        France
Ryan Insurance Group, Inc.                                  Delaware
Ryan Warranty Services Canada, Inc.                         Canada
Ryan Warranty Services Quebec, Inc.                         Ontario
Ryan/CSI, Inc.                                              Illinois
S. Mark Brockinton & Associates of Texas, Inc.              Texas
S. Mark Brockinton & Associates, Inc.                       Arkansas
SIS Services of New York, Inc.                              New York
SLE Worldwide Australia Pty Limited                         Australia
SLE Worldwide Canada Brokers, Ltd.                          Ontario
SLE Worldwide Limited                                       United Kingdom
SLE Worldwide Mexico, Agente de Seguros, S.A. de C.V.       Mexico
SLE Worldwide, Inc.                                         Delaware
Saat Van Marwijk Beheer B.V.                                Netherlands
Saat Van Marwijk Noordwijk B.V.                             Netherlands
Sang Woon Agency                                            Korea
Santos da Cunha, Abreu & Associados, Lda.                   Portugal
Saxonbeech Ltd.                                             United Kingdom
Scarborough & Company, Inc.                                 Delaware
Scarborough Insurance Agency of Massachusetts, Inc.         Massachusetts
Seascope Cargo Insurance Services Limited                   United Kingdom
Seascope Insurance Holdings Limited                         United Kingdom
Seascope Insurance Services Limited                         United Kingdom
Seascope Marine Insurance Services Limited                  United Kingdom
Seascope Marine Limited                                     United Kingdom
Seascope Reinsurance Services Limited                       United Kingdom
Select Direct Limited                                       Scotland
Self-Insurers Service, Inc.                                 Delaware
Service Protection, Inc.                                    Illinois
Service Saver, Incorporated                                 Florida
ServicePlan of Florida, Inc.                                Florida
ServicePlan of Ohio, Inc.                                   Ohio
ServicePlan, Inc.                                           Illinois
Services De Risques Aon Inc.                                Canada
Servicios Y Garantias Ryan S.L.                             Spain
Sherwood Insurance Services                                 California
Shoreline Insurance Agency, Inc.                            Rhode Island
Simco Insurance Brokers Pte                                 Singapore
Singer Group, Inc., The                                     Texas
Singer Plan, Inc.                                           Delaware
Square One, Inc.                                            Texas
Steetley Leslie & Godwin Limited                            Guernsey
Steeves Lumley Ltd.                                         Australia
Sterling Life Insurance Company                             Arizona
Stichting Employee Fund Aon                                 Netherlands
Stichting Werknemerscertificaten HLG                        Netherlands
Strong Management Services Pty. Ltd.                        Australia
Structured Compensation Ltd.                                United Kingdom
Subsidiary Corporation, Inc.                                Maryland
Sumner & McMillan                                           United Kingdom
Sumner & McMillan (Ireland)                                 Ireland
Superannuation Fund (CICNZ) Limited                         New Zealand
Surety & Guarantee Consultants Limited                      United Kingdom
Surveyors Claims Services Ltd.                              United Kingdom
Swaziland Corporate Risk Management (Pty) Ltd.              Swaziland
Swaziland Employee Benefit Consultants (Pty) Ltd.           Swaziland
Swaziland Reinsurance Brokers (Pty) Ltd.                    Swaziland
TREV Properties Corporation                                 Delaware
TTF Insurance Services Ltd.                                 United Kingdom
Tabma-Hall Insurance Services Pty. Limited                  Australia
Tethercrest Ltd.                                            United Kingdom
Texecur Versicherungs Vermittlungs GmbH                     Germany
The Auto Leasing Corporation                                Delaware
The Credit Insurance Association France SA                  France
The Credit Insurance Association Ltd.                       United Kingdom
U.S. Rating Bureau, Inc.                                    Delaware
Underwriters Marine Services Limited                        United Kingdom
Underwriters Marine Services of Texas, Inc.                 Texas
Underwriters Marine Services, Inc.                          Louisiana
United Car & Van Rental Ltd.                                United Kingdom
VOL Mortgage Corporation                                    Delaware
VOL Properties Corporation                                  Delaware
Varity Risk Management Services Ltd.                        United Kingdom
Verum-HLG B.V.                                              Netherlands
Vesselforward Ltd.                                          United Kingdom
Virginia Surety Company, Inc.                               Illinois
WACUS Kreditversicherungsmakler GmbH                        Austria
WACUS Magyarorszag Hitelbitzositasi Tanacsado
  es Kozvetito Kit                                          Hungary
WAS Betriebsfuhrungs-GmbH                                   Germany
Wacus/Hudig-Langeveldt GmbH                                 Germany
Wacus/Hudig-Langeveldt Kreditversicherungsmakler
  und Beratungs GmbH & Co.                                  Germany
Wacus/Hudig-Langeveldt, Kreditversicherungsmakler
  und Beratungs                                             Germany
Wesselhoeft Ahlers & Schues oHG                             Germany
Wexford Underwriting Managers, Inc.                         Delaware
Whitehouse Moorman Holdings Ltd.                            United Kingdom
Wilfredo Armstrong S.A.                                     Argentina
Willis Corroon (PVT) Ltd.                                   Zimbabwe
Worldwide Insurance Network Limited                         United Kingdom
Worldwide Integrated Services Company                       Texas
XB-Lumley Insurance Brokers (Pty) Ltd.                      South Africa
nv Insurance Louis Delhaize (en abrege INSURDEL)            Belgium

                                                                      Exhibit 23




               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS



We consent to the  incorporation  by reference in this Annual Report (Form 10-K)
of Aon  Corporation of our report dated February 11, 1997,  included in the 1996
Annual Report to Stockholders of Aon Corporation.

Our audits also included the financial  statement  schedules of Aon  Corporation
listed in Item 14(a).  These schedules are the  responsibility  of the Company's
management.  Our responsibility is to express an opinion based on our audits. In
our  opinion,  with  respect to which the date is February  11, 1997 (except for
Note 5 to Schedule II, as to which the date is March 21,  1997),  the  financial
statement  schedules referred to above, when considered in relation to the basic
financial  statements taken as a whole,  present fairly in all material respects
the  information set forth therein.  As discussed in Note 4 to the  consolidated
financial   statements  in  the  1996  Annual  Report  to  Stockholders  of  Aon
Corporation,   the  Company   changed  its  method  of  accounting  for  certain
investments in 1994.

We also consent to the incorporation by reference in the Registration Statements
pertaining  to the  employer's  stock  option and  savings  plans (Form S-8 Nos.
33-27984,  33-42575 and 33-59037),  the right to offer preferred stock (Form S-3
No.  33-57562) of Aon Corporation and the offer to exchange  Capital  Securities
(Form S-4 No. 333-21237) of Aon Capital A of our report dated February 11, 1997,
with respect to the consolidated  financial  statements  incorporated  herein by
reference,  and our report,  included in the preceding paragraph with respect to
the financial  statement schedules included in this Annual Report (Form 10-K) of
Aon Corporation.



                                                            ERNST & YOUNG LLP





Chicago, Illinois
March 24, 1997
<PAGE>

<TABLE> <S> <C>


<ARTICLE>                                           7
<LEGEND>
     This schedule contains summary financial information extracted from
     Condensed Consolidated Statements of Financial Position and Condensed
     Consolidated Statements of Income and is qualified in its entirety by
     reference to such financial statements.
</LEGEND>
<MULTIPLIER>                                     1,000,000
       
<S>                                            <C>
<PERIOD-TYPE>                                       12-MOS
<FISCAL-YEAR-END>                              DEC-31-1996
<PERIOD-START>                                 JAN-01-1996
<PERIOD-END>                                   DEC-31-1996
<DEBT-HELD-FOR-SALE>                                 2,826
<DEBT-CARRYING-VALUE>                                    0
<DEBT-MARKET-VALUE>                                      0
<EQUITIES>                                             879
<MORTGAGE>                                              29
<REAL-ESTATE>                                           18
<TOTAL-INVEST>                                       5,213
<CASH>                                                 410
<RECOVER-REINSURE>                                      35
<DEFERRED-ACQUISITION>                                 599
<TOTAL-ASSETS>                                      13,723
<POLICY-LOSSES>                                      1,080
<UNEARNED-PREMIUMS>                                  1,925
<POLICY-OTHER>                                         841
<POLICY-HOLDER-FUNDS>                                  514
<NOTES-PAYABLE>                                        735 <F1>
                                   50
                                              6 <F3>
<COMMON>                                               114 <F2>
<OTHER-SE>                                           2,713
<TOTAL-LIABILITY-AND-EQUITY>                        13,723
                                           1,527
<INVESTMENT-INCOME>                                    384
<INVESTMENT-GAINS>                                       8
<OTHER-INCOME>                                       1,969 <F4>
<BENEFITS>                                             790
<UNDERWRITING-AMORTIZATION>                            208
<UNDERWRITING-OTHER>                                 2,445
<INCOME-PRETAX>                                        446
<INCOME-TAX>                                           154
<INCOME-CONTINUING>                                    292
<DISCONTINUED>                                          43
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                           335
<EPS-PRIMARY>                                         2.87
<EPS-DILUTED>                                         2.87
<RESERVE-OPEN>                                         715
<PROVISION-CURRENT>                                    920 <F5>
<PROVISION-PRIOR>                                      (92)<F5>
<PAYMENTS-CURRENT>                                     725 <F6>
<PAYMENTS-PRIOR>                                       283
<RESERVE-CLOSE>                                        535
<CUMULATIVE-DEFICIENCY>                                  0
<FN>
<F1> Includes short-term borrowings and debt guarantee of ESOP.
<F2> Common stock at par value.
<F3> Preferred stock at par value.
<F4> Includes brokerage commissions and fees and other income.
<F5> Includes discontinued operations.
<F6> Includes liability for business sold of $173 million.
</FN>
        

</TABLE>


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