CORPORATE EXECUTIVE BOARD CO
S-1/A, 1999-02-22
MANAGEMENT CONSULTING SERVICES
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<PAGE>
 
    
 As filed with the Securities and Exchange Commission on February 22, 1999     
                                                      Registration No. 333-59833
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
 
                               ----------------
                                 
                              Amendment No. 4     
                                       TO
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                               ----------------
                     THE CORPORATE EXECUTIVE BOARD COMPANY
             (Exact name of registrant as specified in its charter)
 
 
      Delaware                        8732                     52-2056410
  (State or other         (Primary Standard Industrial      (I.R.S. Employer
  jurisdiction of         Classification Code Number)     Identification No.)
  incorporation or 
   organization)   
                   
                                ----------------
                     The Corporate Executive Board Company
                                 The Watergate
                         600 New Hampshire Avenue, N.W.
                             Washington, D.C. 20037
                                 (202) 777-5000
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
 
                               ----------------
                               James J. McGonigle
                     The Corporate Executive Board Company
                                 The Watergate
                         600 New Hampshire Avenue, N.W.
                             Washington, D.C. 20037
                                 (202) 777-5000
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
 
                               ----------------
                                   Copies To:
 
        Howard B. Adler, Esq.            Thomas R. Brome, Esq. Cravath, Swaine
     Gibson, Dunn & Crutcher LLP                        & Moore
     1050 Connecticut Ave., N.W.                   825 Eighth Avenue
        Washington, D.C. 20036                     New York, NY 10019
            (202) 955-8500                           (212) 474-1000
                               ----------------
 
  The registrant hereby amends this registration statement on such date or
dates as may be necessary to delay its effective date until the registrant
shall file a further amendment which specifically states that this registration
statement shall thereafter become effective in accordance with section 8(a) of
the Securities Act of 1933 or until the registration statement shall become
effective on such date as the Commission acting pursuant to such section 8(a)
may determine.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+Information contained herein is subject to completion or amendment. A         +
+registration statement relating to these securities has been filed with the   +
+Securities and Exchange Commission. These securities may not be sold nor may  +
+offers to buy be accepted prior to the time the registration statement        +
+becomes effective. This prospectus shall not constitute an offer to sell or   +
+the solicitation of an offer to buy nor shall there be any sale of these      +
+securities in any State in which such offer, solicitation or sale would be    +
+unlawful prior to registration or qualification under the securities laws of  +
+any such State.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                 
              SUBJECT TO COMPLETION, DATED FEBRUARY 22, 1999     
 
PROSPECTUS
 
                                8,187,200 Shares
 
 
               [LOGO OF CORPORATED EXECUTIVE BOARD APPEARS HERE]
                     The Corporate Executive Board Company
                                  Common Stock
 
                                   --------
  All of the shares of common stock, par value $.01 per share (the "Common
Stock"), of The Corporate Executive Board Company, a Delaware corporation (the
"Corporate Executive Board" or the "Company"), offered hereby are being offered
by the Selling Stockholders named herein under "Principal and Selling
Stockholders." The Company will not receive any of the proceeds from the sale
of shares of Common Stock by the Selling Stockholders. See "Use of Proceeds."
 
  Of the 8,187,200 shares of Common Stock being offered hereby, a total of
6,549,760 shares are being offered hereby for sale in the United States and
Canada (the "U.S. Offering") by the underwriters of the U.S. Offering named
herein under "Underwriting" (the "U.S. Underwriters") and a total of 1,637,440
shares are being offered by the managers named herein under "Underwriting" (the
"Managers" and, together with the U.S. Underwriters, the "Underwriters") in a
concurrent international offering outside the United States and Canada (the
"International Offering" and, together with the U.S. Offering, the "Offering").
See "Underwriting."
 
  Up to 409,360 shares of Common Stock are being reserved for sale to certain
employees and directors of the Company, and their friends and family members at
the initial public offering price. See "Underwriting."
 
  There is currently no public market for the Common Stock. It is currently
estimated that the initial public offering price per share of Common Stock will
be between $17 and $19. See "Underwriting" for a discussion of the factors to
be considered in determining the initial public offering price. The Common
Stock has been approved for listing on the Nasdaq National Market under the
symbol "EXBD."
  See "Risk Factors" beginning on page 8 for a discussion of material risks
that should be considered by prospective purchasers of the Common Stock offered
hereby.
                                   --------
THESE SECURITIES  HAVE NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE  COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS  THE SECURITIES
 AND EXCHANGE  COMMISSION OR ANY  STATE SECURITIES COMMISSION  PASSED UPON THE
 ACCURACY OR  ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION  TO THE CONTRARY
  IS A CRIMINAL OFFENSE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                              Underwriting    Proceeds to
                                                     Price   Discounts and      Selling
                                                   to Public Commissions(1) Stockholders(2)
- -------------------------------------------------------------------------------------------
<S>                                                <C>       <C>            <C>
Per Share                                            $            $              $
- -------------------------------------------------------------------------------------------
Total(3)                                             $           $               $
</TABLE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
(1) For information regarding indemnification of the U.S. Underwriters, see
    "Underwriting."
(2) The expenses of the Offering, other than Underwriting Discounts and
    Commissions, estimated to be approximately $2.2 million, will be paid by
    the Company.
(3) David G. Bradley, the sole beneficial owner of the Company's outstanding
    stock (the "Principal Selling Stockholder"), has granted the Underwriters
    30-day options to purchase up to 1,228,080 additional shares of Common
    Stock solely to cover over-allotments, if any. See "Underwriting." If such
    options are exercised in full, the total Price to Public, Underwriting
    Discounts and Commissions and Proceeds to Selling Stockholders will be
    $   , $   , and $    respectively.
                                   --------
  The shares of Common Stock are being offered by the several Underwriters
named herein, subject to prior sale, when, as and if accepted by them and
subject to certain conditions. It is expected that the shares of Common Stock
offered hereby will be made available for delivery on or about    , 1999, at
the office of Salomon Smith Barney Inc., 333 West 34th Street, New York, New
York 10001, or through the facilities of the Depository Trust Company.
 
                                   --------
Salomon Smith Barney
       Donaldson, Lufkin & Jenrette
                Friedman, Billings, Ramsey & Co., Inc.
                                                            Goldman, Sachs & Co.
 
      , 1999
<PAGE>
 
 
 
 [Picture of pillars and statues on a building facade with the following quote
by Victor Hugo: "A stand can be made against invasion by an army, no stand can
 be made against invasion by an idea." A list of all of the Company's members
                  will be included on the inside back cover]
 
 
  CERTAIN PERSONS PARTICIPATING IN THE OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT THE PRICE OF THE COMMON STOCK,
INCLUDING STABILIZING AND SYNDICATE COVERING TRANSACTIONS AND THE IMPOSITION
OF A PENALTY BID. FOR A DESCRIPTION OF THESE ACTIVITIES, SEE "UNDERWRITING."
 
                                       2
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  The following summary is qualified in its entirety by the more detailed
information and the financial statements and notes thereto appearing elsewhere
in this Prospectus. This Prospectus contains forward-looking statements that
involve risks and uncertainties. Actual results could differ materially from
those discussed in the forward-looking statements as a result of certain
factors, including those set forth under "Risk Factors," "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
"Business," as well as general economic conditions, competition and other
factors discussed elsewhere in this Prospectus.
 
                                  The Company
 
  The Corporate Executive Board provides "best practices" research and analysis
focusing on corporate strategy, operations and general management issues. Best
practices research identifies and analyzes specific management initiatives,
processes and strategies that have been determined to produce the best results
in solving common business problems or challenges. The Company provides its
research and analysis on an annual subscription basis to a membership of over
1,300 of the world's largest and most prestigious corporations. For a fixed
annual fee, members of each subscription program have access to an integrated
set of services, including best practices research studies, executive education
seminars, customized research briefs and on-line access to the program's
database. For each of the last three years, the Company's program renewal rate
(defined as the percentage of prior year's membership subscriptions renewed,
adjusted to reflect reductions in membership resulting from mergers and
acquisitions of members) exceeded 84%. More than 64% of the Fortune 500
companies are members of the Corporate Executive Board.
 
  The Company's membership-based model, in which all subscribers (or "members")
participate in the Company's research and analysis, is central to its business
strategy. This model gives the Company access to the best business practices of
its members and enables the Company to provide comprehensive analysis on
current business issues, assessing the collective experiences and knowledge of
its members on leading-edge topics. By participating in the Corporate Executive
Board, members can learn about the best practices of the most progressive
corporations in the world at a fraction of the cost of a customized analysis
performed by any of the major consulting firms. The Company does not believe
that in-house research and analysis departments at individual corporations
could obtain, at any price, similar information from other corporations about
their management practices. In general, the membership comprises the most
progressive competitors in each industry sector. Representative members include
American Express, British Airways, Citigroup, Coca-Cola, Dell, Hewlett-Packard,
Lucent, Merrill Lynch, Microsoft, Procter & Gamble and Xerox. No one member
accounted for more than 2% of revenues in any of the last three fiscal years.
The Company does not know of any other entity that enables corporations to
study a broad range of the best business practices of hundreds of other
business enterprises for fixed, annual subscription fees.
 
  The Company currently offers ten discrete subscription programs, each
focusing on a single business constituency: finance, sales, information
technology, corporate strategy, human resources, bank operations, insurance,
trust and private banking, business banking and retail banking. The Company has
added three new subscription programs over the past two years and anticipates
adding one to three new subscription programs per year for the foreseeable
future. Each subscription program charges a separate fixed annual subscription
fee and is served by a dedicated staff of analysts and researchers.
Subscriptions generally are renewable on a 12-month basis, and the average
price per subscription program at December 31, 1998 was approximately $27,500.
In 1998, the Company published 24 best practices research studies, completed
over 12,500 customized research briefs and provided executive education
services to 1,187 member corporations reaching approximately 25,000 executive
participants. The Company's 215 analysts and researchers have compiled a
proprietary database of 261 best practices research studies and 25,000
customized research briefs containing over 100,000 profiles of corporate
practices.
 
 
                                       3
<PAGE>
 
  The Corporate Executive Board's revenue and costs have grown at compound
annual rates of 44.7% and 21.1%, respectively, from December 31, 1995 through
December 31 1998. Because each subscription program provides its membership
with standardized best practices research studies and executive education
seminars, new members immediately add revenues while only incrementally
increasing operating costs. The Company's growth strategy is to cross-sell
additional subscription programs to existing members, to add new members and to
develop new subscription programs.
 
  The Company's business was operated as a division of The Advisory Board
Company, a Maryland corporation, until October 31, 1997 when the business was
contributed to the Company. On October 31, 1997, all of the outstanding shares
of the Company were distributed (the "Spin-Off") as a dividend to David G.
Bradley, the sole stockholder of The Advisory Board Company. The Advisory Board
Company continues to provide best practices research and analysis to its member
institutions in the health care sector. See "Certain Transactions Prior to the
Offering--Formation and Spin-Off of the Company" and "Certain Relationships and
Transactions."
 
  The Company maintains executive offices in Washington, D.C. at the Watergate,
600 New Hampshire Avenue, N.W., Washington, D.C. 20037. Its telephone number is
(202) 777-5000.
 
                                       4
<PAGE>
 
                                  The Offering
 
<TABLE>
<S>                                   <C>
Common Stock offered by the Selling
 Stockholders(1)(2):
 
 U.S. Offering......................  6,549,760 shares
 
 International Offering.............  1,637,440 shares
 
  Total.............................  8,187,200 shares
 
Common Stock to be outstanding
 after the Offering.................  13,188,960 shares(3)
 
Use of proceeds.....................  The Company will not receive any proceeds
                                      from the sale of the Common Stock
                                      pursuant to the Offering. It is expected,
                                      however, that the Principal Selling
                                      Stockholder will use approximately $6.63
                                      million of proceeds to repay a promissory
                                      note made by him in favor of the Company.
 
Nasdaq symbol.......................  EXBD
</TABLE>
- --------
(1) Offered by the Principal Selling Stockholder (and by The David G. Bradley
    GRAT Trust Number 1, of which the Principal Selling Stockholder is the
    trustee and the beneficiary (the "Bradley Trust")), Michael A. D'Amato and
    Jeffrey D. Zients.
(2) Assumes no exercise of the Underwriters' over-allotment options. See
    "Underwriting."
(3) Does not include 7,826,000 shares of Common Stock reserved for issuance
    under the Company's Stock-Based Incentive Plan (the "Incentive Plan"), the
    Company's 1999 Stock Option Plan (the "1999 Plan") and the Company's
    Directors' Stock Plan (the "Directors Plan"), pursuant to which options to
    purchase an aggregate of 5,527,920 shares of Common Stock with a weighted
    average exercise price of $4.66 per share (assuming, with respect to
    693,000 of such shares to be issued at the Offering, an exercise price of
    $18.00 per share, the mid-point of the initial public offering price range)
    will be outstanding at the closing of the Offering.
 
                                  Risk Factors
 
  See "Risk Factors" beginning on page 8 for a discussion of material risks
that should be considered by prospective purchasers of the Common Stock.
 
 
                                       5
<PAGE>
 
                             SUMMARY FINANCIAL DATA
 
  The summary financial data presented below as of December 31, 1996, 1997 and
1998, and for each of the years in the four-year period ended December 31,
1998, have been derived from the financial statements of the Company which have
been audited by Arthur Andersen LLP, independent public accountants. The
summary financial data presented below as of December 31, 1994 and 1995 and for
the year ended December 31, 1994 have been derived from the unaudited financial
statements of the Company, which have been prepared on the same basis as the
audited financial statements of the Company. The summary financial data
presented below should be read in conjunction with the Financial Statements and
the Notes thereto and "Management's Discussion and Analysis of Financial
Condition and Results of Operations" appearing elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                             Year Ended December 31,
                                     -------------------------------------------
                                      1994      1995     1996     1997    1998
                                     -------  --------  -------  ------- -------
                                     (In thousands, except per share amounts)
<S>                                  <C>      <C>       <C>      <C>     <C>
Statements of Operations Data:
Revenues...........................  $10,384  $ 17,547  $27,283  $38,669 $53,030
Costs and expenses:
  Cost of services.................    7,698    10,849   15,078   20,036  26,069
  Member relations and marketing...    2,807     5,275    6,677    8,106  10,980
  General and administrative.......    1,147     2,589    3,832    5,660   6,920
  Depreciation.....................      249       233      452      722     885
  Stock option restructuring and
   repurchase and special bonus
   plan(1).........................      --      9,390    1,473    3,063   5,342
                                     -------  --------  -------  ------- -------
    Total costs and expenses.......   11,901    28,336   27,512   37,587  50,196
                                     -------  --------  -------  ------- -------
Income (loss) from operations(1)...   (1,517)  (10,789)    (229)   1,082   2,834
Interest income....................      --        --       --       122     786
                                     -------  --------  -------  ------- -------
Income (loss) before provision
 (benefit) for state income taxes..   (1,517)  (10,789)    (229)   1,204   3,620
Provision (benefit) for state
 income taxes(2)...................     (151)   (1,076)     (23)     120     361
                                     -------  --------  -------  ------- -------
Net income (loss)..................  $(1,366) $ (9,713) $  (206) $ 1,084 $ 3,259
                                     =======  ========  =======  ======= =======
Pro forma net income (loss)(2).....  $  (887) $ (6,312) $  (134) $   704 $ 2,118
                                     =======  ========  =======  ======= =======
Pro forma net income (loss) per
 share--basic(3)...................  $ (0.07) $  (0.50) $ (0.01) $  0.06 $  0.17
Pro forma weighted average shares
 outstanding--basic(3).............   12,504    12,504   12,504   12,504  12,504
Pro forma net income (loss) per
 share--diluted(3).................  $ (0.07) $  (0.50) $ (0.01) $  0.05 $  0.14
Pro forma weighted average shares--
 diluted(3)........................   12,504    12,504   12,504   13,752  14,950
</TABLE>
 
<TABLE>
<CAPTION>
                                         As of December 31,
                          ----------------------------------------------------
                                                                      1998 Pro
                           1994    1995     1996     1997     1998    forma(4)
                          ------- -------  -------  -------  -------  --------
                                           (In thousands)
<S>                       <C>     <C>      <C>      <C>      <C>      <C>
Balance Sheet Data:
Cash and cash equiva-
 lents................... $   --  $   --   $   --   $ 8,937  $12,232  $13,160
Working capital..........   1,712  (3,530)  (4,645)  (5,005)  (8,721)  (8,299)
Total assets.............  13,154  18,568   23,107   39,868   48,928   51,215
Deferred revenues........   9,578  15,382   21,696   31,474   39,061   39,061
Total stockholder's eq-
 uity (deficit)..........   2,508  (7,205)  (7,411)  (5,042)  (8,147)  (3,160)
</TABLE>
 
                                       6
<PAGE>
 
 
<TABLE>
<CAPTION>
                                                     Year Ended December 31,
                                                     -------------------------
                                                      1996     1997     1998
                                                     -------  -------  -------
   <S>                                               <C>      <C>      <C>
   Other Operating Data:
   Subscription programs(5).........................       7        9       10
   Member institutions(5)(6)(7).....................     998    1,151    1,333
   Total membership subscriptions(5)(7).............   1,485    1,808    2,263
   Average subscription programs per member(5)(7)...    1.49     1.57     1.70
   Program renewal rate(8)..........................      86%      85%      85%
</TABLE>
- --------
(1) Prior to the Spin-Off, The Advisory Board Company entered into agreements
    with certain employees to repurchase outstanding stock options at fixed
    amounts (the "Liquid Markets Agreements"). The obligations under the Liquid
    Markets Agreements were transferred to the Company in the Spin-Off to the
    extent such obligations were attributable to the employees of the Company.
    Furthermore, in the Spin-Off, there was a substitution of Company stock
    options for Advisory Board Company stock options. In December 1998, the
    Company and the Principal Selling Stockholder agreed to certain payments in
    the aggregate amount of $2.4 million to selected employees under a special
    bonus plan. The Company reflects charges relating to the Liquid Markets
    Agreements as stock option repurchase expenses over the required employment
    period ending December 31, 1998. Furthermore, the terms of the stock option
    substitution effected at the Spin-Off resulted in compensation expense
    being charged for the intrinsic value of certain stock options. These
    charges are reflected as stock option restructuring expenses over the
    vesting period of the options. Lastly, the Company recorded the special
    bonus plan charge of $2.4 million at the time of the commitment in December
    1998. Excluding all of these expenses related to the Company's options and
    special bonus plan, Income (Loss) From Operations for 1994, 1995, 1996,
    1997 and 1998 would have been $(1.5) million, $(1.4) million, $1.2 million,
    $4.1 million, and $8.2 million respectively. See "Certain Transactions
    Prior to the Offering--Stock Option Restructuring and Repurchase and
    Special Bonus Plan Charges."
(2) The Company has elected to be taxed under subchapter S of the Internal
    Revenue Code of 1986, as amended (the "Code"), whereby the Principal
    Selling Stockholder (who prior to the Offering was the Company's sole
    stockholder) is liable for individual federal income taxes on the Company's
    taxable income. As the District of Columbia does not recognize S
    corporation status, the Company has been directly responsible for District
    of Columbia taxes. Effective as of the closing of the Offering, the Company
    will terminate its S corporation election and will be subject to corporate
    level federal income taxes. See "Certain Transactions Prior to the
    Offering--S Corporation Distribution and Termination of S Corporation
    Status." Accordingly, the pro forma net income (loss) reflects an estimate
    of the income taxes that would have been recorded if the Company had been a
    C corporation for the periods presented. See Note 6 to Financial
    Statements.
(3) Basic pro forma net income (loss) per share is computed by dividing pro
    forma net income (loss) by the weighted average number of shares of Common
    Stock outstanding during the period. Diluted pro forma net income (loss)
    per share is computed by dividing pro forma net income (loss) by the
    weighted average number of shares of Common Stock outstanding, including
    dilutive securities, during the period. See Note 2 and Note 9 to Financial
    Statements.
   
(4) Pro forma to give effect to (1) the distribution of $4.0 million to the
    Principal Selling Stockholder and the Bradley Trust prior to the closing of
    the Offering, (2) the termination of the Company's S corporation election
    and a resulting increase in the Company's federal deferred income tax asset
    of approximately $4.5 million as of December 31, 1998, (3) the repayment by
    the Principal Selling Stockholder to the Company of a promissory note in
    the principal amount of $6.5 million, (4) payment of the special bonus of
    $2.4 million, 60% in shares of Common Stock owned by the Principal Selling
    Stockholder and 40% in cash paid by the Company, (5) the payment by the
    Company of approximately $2.2 million in Offering expenses, on behalf of
    the Selling Stockholders, which will be treated for accounting purposes as
    a distribution to the Principal Selling Stockholder and the Bradley Trust,
    and (6) the closing of the Offering (including the impact of options
    exercised prior to the Offering and the resulting increase in the deferred
    income tax asset of approximately $4.6 million). See "Certain Transactions
    Prior to the Offering--Stock Option Restructuring and Repurchase and
    Special Bonus Plan Charges."     
(5) At the end of the period.
(6) The Company's members are primarily domestic and multinational corporations
    and secondarily large subsidiaries of corporations and non-profit
    institutions.
(7) Information presented with respect to the years ended December 31, 1996 and
    1997 has been adjusted to eliminate members during such periods who
    discontinued their membership prior to their annual renewal date in the
    subsequent year. Information with respect to the year ended December 31,
    1998 includes the Company's estimate of pending membership renewals and an
    estimate of members who will discontinue their membership prior to their
    annual renewal date in the subsequent year.
(8) Program renewal rate is defined as the percentage of memberships renewed,
    adjusted to reflect reductions in memberships resulting from mergers and
    acquisitions of members.
 
 
                                       7
<PAGE>
 
                                 RISK FACTORS
 
  In addition to the other information in this Prospectus, prospective
investors should carefully consider the following risk factors in evaluating
the Company and its business before purchasing shares of Common Stock offered
hereby.
 
Dependence on Renewals of Membership-Based Services
 
  All of the Company's revenues are derived from annual membership
subscriptions for the Company's products and services. Accordingly, the
Company's prospects depend on its ability to achieve and sustain high renewal
rates on existing subscription programs and to enter into new membership
arrangements. The Company's ability to secure membership renewals is dependent
upon, among other things, its ability to deliver consistent, high-quality and
timely research and analysis with respect to issues, developments and trends
that members view as important. There can be no assurance that the Company
will be able to sustain the necessary level of performance to achieve a high
rate of membership renewals. Any inability to achieve high membership renewal
rate levels would have a material adverse effect on the Company's operating
results. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations" and "Business."
 
Change in Senior Management
 
  Although James J. McGonigle, the Chief Executive Officer of the Company,
managed the business of the Company as a division of The Advisory Board
Company for approximately three years prior to the Spin-Off, he has no
experience as a chief executive officer of an independent corporation. In
addition, the Company has recently hired Clay M. Whitson as its new Chief
Financial Officer. Michael A. D'Amato, the prior Chief Financial Officer of
the Company, resigned from such position in November 1998 but is continuing as
Executive Vice President--Finance and Secretary of the Company until the
closing of the Offering. Until such time, Mr. Whitson will report to Mr.
D'Amato. Mr. D'Amato will continue as a director of the Company but will not
be an officer of the Company after the closing of the Offering. Furthermore,
Jeffrey D. Zients, Chief Executive Officer of The Advisory Board Company, who
served as the Executive Vice President of the Company until July 1998 and to
whom Mr. McGonigle reported until that date, has been actively involved in the
management of the Company and will continue as a director but will not be an
officer of the Company after the closing of the Offering. See "Management--
Directors, Executive Officers and Key Employees." In addition, the Principal
Selling Stockholder, who was the founder of the Company, but in the past
several years has been involved with the Company in an advisory capacity, will
not have any involvement with the Company after the Offering. A failure by the
Company's senior management to effectively manage the business of the Company
would have a material adverse effect on the Company's operating results.
 
Dependence on Key Personnel
   
  The Company's future success depends, in part, on the continued service of
its key management, research, sales, product development and operations
personnel and on its ability to continue to motivate and retain highly
qualified employees. The Company's key personnel include Mr. McGonigle, Mr.
Whitson, Sally Chang, the General Manager, Sales and Marketing, Derek C. M.
van Bever, the Chief Research Officer, and those individuals identified under
"Management--Key Employees." Future operating results will depend upon the
Company's ability to retain the services of these individuals. See "Business--
Employees" and "Management."     
 
Dependence on Ability to Attract and Retain Qualified Personnel
 
  The Company's success will depend, in part, upon its ability to hire, train,
motivate and retain a significant number of highly-skilled employees,
particularly management, research analysts and sales and marketing staff. The
Company has experienced, and expects to continue to experience, intense
competition for professional personnel with other producers of research and
analysis products and services and management consulting firms. Many of these
firms have substantially greater financial resources than the Company to
attract and compensate
 
                                       8
<PAGE>
 
qualified personnel. There can be no assurance that the Company will be
successful in attracting a sufficient number of highly-skilled employees in
the future, or that it will be successful in training, motivating and
retaining the employees it is able to hire. Any material inability to do so
would have a material adverse effect on the Company's business, financial
condition and results of operations. See "Business--Employees."
 
Management of Growth
 
  The Company's growth may place a significant demand on its financial,
operational and managerial resources. To manage future growth, the Company
will have to continue to implement and enhance its operations and financial
systems and augment, train and manage its personnel. There can be no assurance
that the Company's systems, procedures or controls currently in place will be
adequate to support any growth of the Company's operations or that the Company
will be able to implement additional systems successfully and in a timely
manner, if required. Any inability of the Company to manage its growth
successfully would have a material adverse effect on the Company's business,
financial condition and results of operations.
 
Uncertainties of New Product Development
 
  The Company's future success will depend, in part, on its ability to develop
new subscription programs that address specific industry and business
organization sectors and the changing needs of its current and prospective
members for information, analysis and advice. The process of internally
researching, developing, launching and gaining client acceptance of new
subscription programs is inherently risky. Delays or failures during
development or implementation, or lack of market acceptance of new
subscription programs, could have a material adverse effect on the Company's
business, financial condition and results of operations. There can be no
assurance that efforts to introduce new subscription programs will be
successful. The Company's business, financial condition and results of
operations would be materially adversely affected if it were unable to develop
and introduce successful new subscription programs or to make enhancements to
existing subscription programs in a timely manner in response to member
requirements. See "Business--Products and Services."
 
Competition
 
  The Company has many competitors, including research and database companies,
consulting firms, trade associations, nonprofit organizations and the internal
planning and marketing staffs of current and prospective member organizations.
The Company's competitors, many of which have substantially greater financial,
information gathering and marketing resources than the Company, could choose
to compete more directly against the Company in the future. Increased
competition, direct and indirect, in one or more of the Company's market
segments could adversely affect the Company's operating results through
pricing pressure and loss of market share. There can be no assurance that the
Company will be able to compete successfully. See "Business--Competition."
 
Limitations on the Company's Ability to Sell Products and Services to the
Health Care Industry
 
  Pursuant to a Noncompetition Agreement, dated January 1, 1999, among the
Company, The Advisory Board Company and the Principal Selling Stockholder (the
"Noncompetition Agreement"), the Company is prohibited from selling membership
based subscription services substantially similar to those provided by the
Company and The Advisory Board Company as of the date of the Noncompetition
Agreement to any company or institution that is principally engaged in the
health care business. The Company, however, may sell such products and
services to non-health care divisions or subsidiaries of health care
companies. The Company may continue to renew pre-existing subscriptions with
respect to those products and services that it has sold as of the Offering, if
such products and services do not specifically address health care provider
industry issues. Accordingly, the restrictions imposed under the
Noncompetition Agreement generally preclude the Company from selling
membership based subscription services to health care companies and,
therefore, may limit the Company's future growth opportunities. See "Certain
Relationships and Transactions -- Noncompetition Agreement."
 
 
                                       9
<PAGE>
 
Difficulties in Anticipating Market Trends
 
  The Company's success depends, in part, upon its ability to anticipate
rapidly changing market trends and to adapt its research and analysis to meet
the changing information needs of its members. The industry and business
sectors that the Company analyzes undergo frequent and often dramatic changes,
including the introduction of new products and obsolescence of others,
shifting strategies and market positions of major industry participants and
changing objectives and expectations of users of members' products and
services. The environment of rapid and continuous change presents significant
challenges to the Company's ability to provide its members with current and
timely research and analysis on issues of importance. Meeting these challenges
requires the commitment of substantial resources. Any failure to continue to
provide helpful and timely research and analysis of developments and trends in
a manner that meets market needs would have a material adverse effect on the
Company's business, financial condition and results of operations.
 
Financial Institution Industry Consolidation
 
  At December 31, 1998, approximately 45.8% of the Company's Contract Value
was attributable to financial institution members, which include commercial
banks, thrifts, credit card issuers, mutual fund companies, consumer credit
lenders, brokerage houses, private and trust banks and insurance companies.
The Company calculates Contract Value as the aggregate annualized membership
revenue attributable to all membership agreements in effect at a given time,
without regard to the remaining duration of any such agreement, including an
estimate for 1998 of pending membership renewals and an estimate of members
who will discontinue their membership prior to their annual renewal date in
the subsequent year. Substantial consolidation in the financial services
industry, particularly in the bank and thrift segments, has occurred over the
last five years and is expected to continue. This consolidation has resulted,
and is expected to continue to result, in a reduction in the number of the
Company's financial institution members. Such a reduction could result in
decreased membership revenues. No assurance can be given that the Company's
results of operations will not be materially adversely affected by such
consolidation.
 
Limited History of Profitability; Prior Losses; Equity Deficit
 
  The Company incurred net losses of $1.4 million, $9.7 million and $206,000
in 1994, 1995 and 1996, respectively, and had a stockholder's deficit of $8.1
million at December 31, 1998. There can be no assurance that the Company will
maintain profitability in the future. See "Management's Discussion and
Analysis of Financial Condition and Results of Operations."
 
Potential Fluctuations in Operating Results
 
  The Company's operating results may fluctuate significantly due to various
factors, including the growth in and timing of new memberships, the timing of
the development, introduction and marketing of new products and services, the
timing of the hiring of research analysts and sales and marketing staff,
changes in the spending patterns of the Company's members, the Company's
accounts receivable collection experience, changes in market demand for
research and analysis, foreign currency exchange rate fluctuations,
competitive conditions in the industry and general economic conditions. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."
 
Intellectual Property Rights; Possibility of Litigation Related to Content
 
  The Company relies on copyright laws, as well as nondisclosure and
confidentiality arrangements, to protect its proprietary rights in its
products and services. There can be no assurance that the steps taken by the
Company to protect its intellectual property rights will be adequate to deter
misappropriation of such rights or that the Company will be able to detect
unauthorized uses and take timely and effective steps to enforce its rights.
If substantial and material unauthorized uses of the Company's proprietary
products and services were to occur, the Company may be required to engage in
costly and time-consuming litigation to enforce its rights. There can be no
assurance that the Company would prevail in such litigation.
 
  As a publisher and distributor of original research and analysis and user of
licensed third-party content, the Company faces potential liability for
defamation, negligence, copyright and trademark infringement. Third party
 
                                      10
<PAGE>
 
content includes information created or provided by information services
organizations and consultants retained by the Company and may be delivered in
writing, over the Internet or orally to clients. There can be no assurance
that the Company will not be involved in litigation, which can be expensive
and time consuming, as a result of the creation or dissemination of such
content. Any such litigation, whether or not resulting in a judgment requiring
the payment of monetary damages, could have a material adverse affect on the
Company's business, financial condition and results of operations.
 
Potential Loss of Revenue Resulting from the Company's Unconditional Service
Guarantee
   
  The Company offers an unconditional service guarantee to its members. At any
time, a member may demand a full refund of its subscription fee for a program.
The request for refunds of subscription fees by a significant number of the
Company's members could have a material adverse effect on the Company's
financial condition and results of operations.     
 
Absence of Public Market and Possible Volatility of Stock Price
 
  Prior to the Offering, there has been no public market for the Common Stock.
There can be no assurance that, following the Offering, an active trading
market for the Common Stock will develop or be sustained or that the market
price of the Common Stock will not decline below the initial public offering
price. The initial public offering price will be determined by negotiations
among the Company, representatives of the Selling Stockholders and the
representatives of the Underwriters, and will not necessarily reflect the
market price of the Common Stock after the Offering. See "Underwriting" for a
discussion of the factors to be considered in determining the initial public
offering price. The market price of the Common Stock could experience
significant fluctuations in response to, and may be adversely affected by,
variations in quarterly operating results, changes in earnings estimates or
other actions by analysts and earnings or other announcements of the Company's
members or competitors as well as other factors.
 
Shares Eligible for Future Sale; Registration Rights
 
  No prediction can be made as to the effect, if any, that future sales of
shares of Common Stock or the availability of shares of Common Stock for
future sale, will have on the market price of the Common Stock prevailing from
time to time. Sales of substantial amounts of the Common Stock in the public
market following the Offering, or the perception that such sales could occur,
could adversely affect the market price of the Common Stock.
 
  Immediately after the Offering, the Company will have outstanding 13,188,960
shares of Common Stock and options to purchase 5,527,920 shares of Common
Stock under the Company's various option plans with a weighted average
exercise price of $4.66 per share (assuming, with respect to 693,000 of such
shares to be sold in the Offering, an exercise price of $18.00 per share, the
mid-point of the initial public offering price range). After the Offering, the
Principal Selling Stockholder, who will hold approximately 5,001,760 shares of
Common Stock (approximately 3,773,680 shares of Common Stock if the
Underwriters' over-allotment options are exercised in full), less shares of
Common Stock granted under the special bonus plan described under "Certain
Transactions Prior to the Offering--Stock Option Restructuring and Repurchase
and Special Bonus Plan Charges," will be entitled for a five-year period,
beginning on the date the Offering closes, to require the Company to register
such shares under the Securities Act of 1933. The Principal Selling
Stockholder has informed the Company that he may sell all or substantially all
of his shares in the public market within such period. The sale by the
Principal Selling Stockholder of such shares of Common Stock in the public
market or the perception that such sales might occur could have a material
adverse effect on the price of the Common Stock. In addition, the public sale
of shares of Common Stock held by the Principal Selling Stockholder could have
an adverse effect on the Company's ability to raise capital through the sale
of stock.
 
  The shares of Common Stock sold in the Offering will be freely transferable
without restriction or further registration under the Securities Act of 1933
except for any shares that are beneficially owned at any time by an
"affiliate" of the Company within the meaning of Rule 144 under the Securities
Act of 1933 (which sales will be subject to the timing, volume and manner of
sale limitations of Rule 144). The approximately 5,001,760 outstanding shares
of Common Stock that will be held by the Principal Selling Stockholder after
the Offering (approximately 3,773,680 shares of Common Stock if the
Underwriters over-allotment options are exercised in
 
                                      11
<PAGE>
 
full) are "restricted" securities within the meaning of Rule 144 under the
Securities Act of 1933 and may not be publicly resold, except in compliance
with the registration requirements of the Securities Act of 1933 or pursuant
to an exemption from registration, including that provided by Rule 144 under
the Securities Act of 1933. See "Certain Transactions Prior to the Offering--
The Recapitalization," "Principal and Selling Stockholders" and "Certain
Relationships and Transactions."
 
  The Company, the Selling Stockholders, the executive officers, the directors
and the employees receiving shares of Common Stock under the special bonus
plan have agreed that they will not offer, sell, contract to sell, announce
any intention to sell, pledge or otherwise dispose of, directly or indirectly,
or file with the Commission a registration statement under the Securities Act
of 1933 relating to, any shares of Common Stock or securities or other rights
convertible into or exchangeable or exercisable for any shares of Common Stock
without the prior written consent of Salomon Smith Barney for a period of 180
days after the date of this Prospectus (the "Lock-Up Period"). Accordingly, if
the Principal Selling Stockholder wishes to exercise his registration rights
during the Lock-Up Period, the consent of Salomon Smith Barney would be
required. The restrictions applicable during the Lock-Up Period will not
affect the ability of the Company (i) to issue and sell Common Stock or make
any awards pursuant to the Incentive Plan, the 1999 Plan and the Directors
Plan, (ii) to issue shares of Common Stock pursuant to the exercise of stock
options currently outstanding or granted pursuant to the Incentive Plan, the
1999 Plan or the Directors Plan or (iii) to issue shares of Common Stock or
securities convertible into, or exercisable or exchangeable for, shares of
Common Stock in connection with an acquisition of or merger with another
corporation as long as such securities are not registered under the Securities
Act of 1933 during the Lock-Up Period. See "Shares Eligible for Future Sale"
and "Underwriting."
 
ANTI-TAKEOVER PROVISIONS; POTENTIAL CONTROL OF THE COMPANY BY THE PRINCIPAL
SELLING STOCKHOLDER
 
  The Company's Certificate of Incorporation includes provisions authorizing
the Board of Directors to issue shares of preferred stock from time to time
with such rights and preferences as the Board may determine and provisions
prohibiting stockholder action by written consent. These provisions could have
the effect of making it more difficult for a third party to acquire, or
discouraging a third party from attempting to acquire, control of the Company.
Such provisions also may have the effect of discouraging or preventing certain
types of transactions involving an actual or threatened change of control of
the Company (including unsolicited take-over attempts), even though such a
transaction may offer the Company's stockholders the opportunity to sell their
stock at a price above the prevailing market price. See "Description of
Capital Stock."
 
  Upon the closing of the Offering, the Principal Selling Stockholder will
beneficially own approximately 38% of the shares of Common Stock
(approximately 29% if the Underwriters' over-allotment options are exercised
in full), less shares of Common Stock granted under the special bonus plan.
Accordingly, the Principal Selling Stockholder may be able to influence the
outcome of corporate actions requiring stockholder approval after the
Offering. See "Principal and Selling Stockholders."
 
POTENTIAL ABILITY OF THE PRINCIPAL SELLING STOCKHOLDER TO HIRE KEY PERSONNEL
OF THE COMPANY
 
  The Noncompetition Agreement generally prohibits The Advisory Board Company,
the Principal Selling Stockholder and entities controlled by the Principal
Selling Stockholder from recruiting or employing the Company's employees or
persons who were employees of the Company at any time during the 24-month
period preceding the date of such recruitment or employment unless the chief
executive officer of the Company consents. See "Certain Relationships and
Transactions -- Noncompetition Agreement." After the Offering, the Principal
Selling Stockholder will continue to own approximately 38% of the Common Stock
(approximately 29% if the Underwriters' over-allotment options are exercised
in full), less shares of Common Stock granted under the special bonus plan. As
a result, the Principal Selling Stockholder may be in a position to direct the
chief executive officer to consent to the employment of one or more key
employees of the Company by the Principal Selling Stockholder or The Advisory
Board Company. The recruitment of key employees could have a material adverse
effect on the Company's business and results of operations. In addition, the
Noncompetition Agreement permits The Advisory Board Company and the Principal
Selling Stockholder or entities controlled by him to hire Mr. van Bever at any
time after January 1, 2002.
 
                                      12
<PAGE>
 
                  CERTAIN TRANSACTIONS PRIOR TO THE OFFERING
 
Formation and Spin-Off of the Company
 
  Prior to October 31, 1997, the Company's business was operated as a division
of The Advisory Board Company. The Company was incorporated in the State of
Delaware on September 11, 1997. On October 31, 1997: (i) the Company issued
shares of common stock to The Advisory Board Company in consideration for the
transfer to the Company by The Advisory Board Company of the assets and
certain liabilities relating to the corporate-related business (the
"Transferred Business") of The Advisory Board Company and (ii) The Advisory
Board Company distributed all issued and outstanding shares of common stock of
the Company to David G. Bradley, the sole stockholder of The Advisory Board
Company as part of the Spin-Off. After the Spin-Off, The Advisory Board
Company and the Company were separate corporations, each owned directly by
David G. Bradley.
 
  The Spin-Off was consummated, among other things, (i) to permit management
of each of the Company and The Advisory Board Company to focus on their
respective strategic objectives and core business operations and (ii) to link
more directly incentive and compensation arrangements for key employees of
each entity with the operating results and performance of the respective
entities.
 
  A Distribution Agreement, dated October 31, 1997, between The Advisory Board
Company and the Company (the "Distribution Agreement") provided for the
principal corporate transactions required to effect the Spin-Off. Among other
things, the Distribution Agreement required the transfer and assignment to the
Company of all assets and agreements (including the agreements between The
Advisory Board Company and its clients relating to the Transferred Business
(the "Member Contracts")) relating to the Transferred Business and the
assumption by the Company of liabilities, including all indebtedness relating
to the Transferred Business.
 
  Pursuant to an Administrative Services Agreement (the "Administrative
Services Agreement") and a Vendor Contracts Agreement (the "Vendor Contracts
Agreement"), both dated October 31, 1997, as amended and restated on July 21,
1998, The Advisory Board Company agreed to provide to the Company certain
administrative services and certain vendor services. The term of each of these
agreements expires on October 31, 1999. Pursuant to a Member Contracts
Agreement, dated October 31, 1997 (the "Member Contracts Agreement"), the
Company appointed The Advisory Board Company as its agent to take
administrative and accounting-related actions on behalf of the Company with
respect to Member Contracts. The Member Contracts Agreement terminated on
October 31, 1998 in accordance with its terms. Pursuant to a Sublease
Agreement, dated October 31, 1997, as amended and restated on July 21, 1998
(the "Sublease Agreement"), the Company also subleases a portion of its office
space from The Advisory Board Company on terms consistent with the original
lease agreement, subject to termination by either The Advisory Board Company
or the Company with at least six months written notice. The Company records
costs associated with these agreements monthly as a payable to an affiliate,
and expects to settle amounts owed on a quarterly basis. See "Certain
Relationships and Transactions."
 
  The Company's financial statements present the accounts of the Company as if
it had operated as a stand-alone entity, in accordance with the accounting
rules prescribed for "carve-out" financial statements, for periods preceding
the Spin-Off. For these periods, net funds contributed by the Company are
treated as an affiliate receivable because cash flows were commingled in The
Advisory Board Company accounts. This affiliate receivable was settled as part
of the transfer of assets and liabilities at the Spin-Off pursuant to the
Distribution Agreement.
 
S Corporation Distribution and Termination of S Corporation Status
 
  Prior to the closing of the Offering, the Company has been treated as an S
corporation under the Code for federal and certain state income tax purposes.
As a result, the Company's earnings were taxed for federal and certain state
tax purposes directly to the Principal Selling Stockholder. Effective as of
the closing of the Offering, the Company's status as an S corporation will be
terminated and the Company will become subject to federal and state income
taxes.
 
                                      13
<PAGE>
 
  Prior to the closing of the Offering, the Company will distribute to the
Principal Selling Stockholder and the Bradley Trust an amount equal to $4.0
million (the "Pre-Closing Distribution"). In addition, the expenses of the
Offering, estimated to be approximately $2.2 million, will be paid by the
Company and will be treated for accounting purposes as a distribution to the
Principal Selling Stockholder and the Bradley Trust.
 
  In connection with the Pre-Closing Distribution and the payment of the
expenses of the Offering, the Company and the Principal Selling Stockholder
have entered into a cross-indemnification agreement pursuant to which the
Company will indemnify the Principal Selling Stockholder and the Principal
Selling Stockholder will indemnify the Company with respect to adverse tax
effects resulting from the reallocation of income and expenses between S
corporation and C corporation tax years.
 
The Recapitalization
   
  The Company currently has two classes of common stock issued and
outstanding, the Class A Stock and the Class B Stock, differing only as to
voting rights. Prior to the Offering, the Board of Directors and the Principal
Selling Stockholder, approved a 17.2-for-1 stock split in the form of a
dividend (the "Stock Split"), an increase in the authorized number of shares
of the Class A Stock and the Class B Stock to 13,188,960, the authorization of
100 million shares of Common Stock and the authorization of five million
shares of Preferred Stock (the "Authorized Share Increase"). The Stock Split
was effected on February 19, 1999. In order to facilitate the Offering, prior
to the Offering, the Board of Directors and the Principal Selling Stockholder
approved the reclassification of the Company's two outstanding classes of
common stock into shares of a single class of Common Stock automatically upon
the closing of the Offering (the "Reclassification"). The Stock Split, the
Authorized Share Increase and the Reclassification are referred to herein as
the "Recapitalization." As a result of the Recapitalization, the Company will
have 13,188,960 outstanding shares of Common Stock as its only class of issued
equity securities upon the closing of the Offering. All holders of the Common
Stock will have the same rights and privileges. See "Description of Capital
Stock." Except as specifically set forth in this Prospectus, all references to
numbers of shares of any class of the Company's stock and all per share
information set forth in this Prospectus have been adjusted to give effect to
the Recapitalization.     
 
Stock Option Restructuring and Repurchase and Special Bonus Plan Charges
 
  Beginning in 1995 and prior to the Spin-Off, The Advisory Board Company
entered into the Liquid Markets Agreements. The obligations associated with
these agreements were transferred to the Company in the Spin-Off to the extent
such obligations were attributable to employees of the Company. The cost of
such agreements was charged to compensation expense over required employment
periods ending in December 1998. Furthermore, in connection with the Spin-Off,
The Advisory Board Company executed substitution agreements with each of the
employees of the Company participating in The Advisory Board Company's stock
option plan. The substitution allowed for the exchange of Advisory Board
Company options for Company options. The terms of this substitution resulted
in compensation expense being charged for the intrinsic value of certain stock
options over the vesting period. This compensation expense will result in non-
cash charges in the amount of $382,000 in 1999, $382,000 in 2000 and $189,000
in 2001. Accordingly, compensation expense of approximately $96,000 relating
to the substitution of the stock options will be recognized during the quarter
in which the Offering occurs. In December 1998, the Company and the Principal
Selling Stockholder agreed to pay a special bonus to selected employees in an
amount totaling $2.4 million. The bonus is payable at the earlier of the date
of an initial public offering or December 31, 1999. If the amount is paid at
the date of an initial public offering, the obligation will be payable 60% in
shares of Common Stock owned by the Principal Selling Stockholder (valued for
this purpose at the initial price offered to the public) and 40% in cash by
the Company. If the amount is not paid in conjunction with an initial public
offering, then the obligation will be payable 100% in cash by the Company. The
Company recognized $2.4 million in expense related to this special bonus plan
in 1998.
 
 
Name Change
 
  On July 27, 1998, the Company changed its name from The Corporate Advisory
Board Company to The Corporate Executive Board Company.
 
                                      14
<PAGE>
 
                                USE OF PROCEEDS
 
  All of the shares of Common Stock being sold in the Offering are being sold
by the Selling Stockholders. The Company will not receive any proceeds from
the sale of the Common Stock pursuant to the Offering. The Principal Selling
Stockholder, however, has agreed to use approximately $6.63 million of the
proceeds of the Offering to repay the principal and accrued and unpaid
interest on a promissory note made by the Principal Selling Stockholder in
favor of the Company. See "Certain Relationships and Transactions --Promissory
Note."
 
                                DIVIDEND POLICY
 
  From the date of the Spin-Off to the closing of the Offering, the Company
has paid dividends of $10.9 million (including the Pre-Closing Distribution)
to the Principal Selling Stockholder and the Bradley Trust. In addition, the
Company will pay the expenses of the Offering in the amount of approximately
$2.2 million which will be treated for accounting purposes as a distribution
to the Principal Selling Stockholder and the Bradley Trust. After the
Offering, the Company does not anticipate declaring or paying dividends in the
foreseeable future. The timing and amount of future dividends, if any, will be
determined by the Board of Directors of the Company and will depend, among
other factors, upon the Company's earnings, financial condition and cash
requirements at the time such payment is considered.
 
                                      15
<PAGE>
 
                                CAPITALIZATION
 
  The following table sets forth the capitalization of the Company at December
31, 1998 on an actual basis and pro forma to reflect the transactions set
forth in note (1) hereto. The Company will not receive any of the proceeds
from the Offering. See "Use of Proceeds" and "Principal and Selling
Stockholders." This table should be read in conjunction with the Financial
Statements and Notes thereto included elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                                          December 31, 1998
                                                        ----------------------
                                                         Actual   Pro Forma(1)
                                                        --------  ------------
                                                           (In thousands)
<S>                                                     <C>       <C>
Cash and cash equivalents.............................. $ 12,232    $13,160
                                                        ========    =======
Current stock option repurchase and special bonus plan
 liability(2).......................................... $  7,054    $ 4,654
                                                        --------    -------
  Total current liabilities............................ $  7,054    $ 4,654
                                                        ========    =======
Long-term stock option repurchase liability(2)......... $  3,140    $ 3,140
Preferred stock, par value $0.01; 5,000,000 shares
 authorized, no shares issued and outstanding..........      --         --
Common stock, par value $0.01; 100,000,000 shares
 authorized, and 12,504,400 shares issued and
 outstanding (actual), 13,188,960 shares issued and
 outstanding (pro forma)(3)............................      125        132
Additional paid-in capital.............................    2,646     (2,339)
Deferred compensation..................................     (953)      (953)
Accumulated deficit....................................   (9,965)       --
                                                        --------    -------
  Total capitalization................................. $ (5,007)   $   (20)
                                                        ========    =======
</TABLE>
- --------
   
(1) Assumes the following transactions took place as of December 31, 1998: (i)
    the payment of the Pre-Closing Distribution in the amount of $4.0 million;
    (ii) the Recapitalization; (iii) the payment of the expenses of the
    Offering in the amount of approximately $2.2 million; (iv) the closing of
    the Offering (including the impact of options exercised prior to the
    Offering and the resulting increase in the deferred income tax asset of
    approximately $4.6 million); (v) receipt by the Company of the proceeds
    from the repayment of a promissory note in the principal amount of $6.5
    million made by the Principal Selling Stockholder in favor of the Company;
    (vi) payment of the special bonus of approximately $2.4 million, 60% in
    shares of Common Stock owned by the Principal Selling Stockholder and 40%
    in cash by the Company; and (vii) the termination of the Company's
    S corporation election and a resulting increase in the Company's federal
    deferred income tax asset of approximately $4.5 million. See "Certain
    Transactions Prior to the Offering--S Corporation Distribution and
    Termination of S Corporation Status;--The Recapitalization; and--Stock
    Option Restructuring and Repurchase and Special Bonus Plan Charges."     
(2) The Company has Liquid Markets Agreements with certain employees relating
    to the repurchase of certain stock options prior to the Spin-Off at fixed
    amounts. The amount due under these agreements during the next 12 months
    is classified as current stock option repurchase liability, and the amount
    due thereafter is classified as long-term stock option repurchase
    liability. The Company has a $2.4 million commitment relating to a special
    bonus plan, payable no later than December 31, 1999, classified as current
    special bonus plan liability. See "Certain Transactions Prior to the
    Offering--Stock Option Restructuring and Repurchase and Special Bonus Plan
    Charges."
(3) Does not include options outstanding at the closing of the Offering to
    purchase 5,527,920 shares of Common Stock under the Company's various
    option plans with a weighted average exercise price of $4.66 per share
    (assuming, with respect to 693,000 of such shares to be issued at the
    Offering, an exercise price of $18.00 per share, the mid-point of the
    initial public offering price range).
 
                                      16
<PAGE>
 
                                   DILUTION
 
  The Principal Selling Stockholder currently is the sole beneficial owner of
the Company's outstanding stock. The Principal Selling Stockholder currently
beneficially owns 12,504,400 shares of Common Stock, which were distributed to
him in the form of a dividend on October 31, 1997 by The Advisory Board
Company as part of the Spin-Off. The Principal Selling Stockholder paid no
additional consideration for such stock at the time of the Spin-Off. It is
anticipated that immediately prior to the date of this Prospectus, Messrs.
Zients and D'Amato will exercise options, at an exercise price of $0.93 per
share, to purchase 684,560 shares of Common Stock from the Company, and that
such shares will be sold in the Offering. The following table sets forth
certain information with respect to the acquisition of shares of Common Stock
by existing stockholders and by investors in the Offering.
 
<TABLE>
<CAPTION>
                          Shares Purchased  Total Consideration
                         ------------------ -------------------- Average Price
                           Number   Percent    Amount    Percent   per Share
                         ---------- ------- ------------ ------- -------------
<S>                      <C>        <C>     <C>          <C>     <C>
Existing Stockholders
 (1)....................  5,001,760    38%  $      2,908    --%     $   --
New Investors...........  8,187,200    62%  $147,369,600   100%     $18.00(2)
                         ----------   ---   ------------   ---
Total................... 13,188,960   100%  $147,372,508   100%
                         ==========   ===   ============   ===
</TABLE>
 
- --------
(1) The foregoing calculations (i) assume the shares of Common Stock owned by
    the Principal Selling Stockholder, who is expected to be the only existing
    stockholder who will continue to own shares of Common Stock after the
    Offering, were acquired for $.01 per share, the par value of each share of
    The Advisory Board Company underlying the shares of the Company
    distributed to him in the Spin-Off, (ii) exclude 7,826,000 shares of
    Common Stock reserved for issuance under the Company's Incentive Plan, the
    1999 Plan and the Directors Plan, (iii) assume no exercise of the
    Underwriters' over-allotment options and (iv) exclude 684,560 shares of
    Common Stock acquired by Messrs. Zients and D'Amato, at a purchase price
    of $0.93 per share as a result of the exercise of options immediately
    prior to the Offering because Messrs. Zients and D'Amato will sell in the
    Offering all of such shares of Common Stock and will not own any
    outstanding shares of Common Stock immediately after the Offering.
(2) The mid-point of the estimated initial public offering price range set
    forth on the cover page of this Prospectus.
 
  Sales by the Selling Stockholders in the Offering will reduce the number of
shares of Common Stock held by the Principal Selling Stockholder, the only
existing stockholder, to approximately 5,001,760 shares or 38% (approximately
3,773,680 shares or 29% if the Underwriters' over-allotment option is
exercised in full) of the total number of shares of Common Stock outstanding
after the Offering, less shares of Common Stock granted under the special
bonus plan. As a result of the Offering, the number of shares of Common Stock
held by new investors will be 8,187,200 shares or 62% (9,415,280 shares or 71%
if the Underwriters' over-allotment options are exercised in full) of the
total number of shares of Common Stock outstanding after the Offering. See
"Principal and Selling Stockholders."
 
                                      17
<PAGE>
 
                            SELECTED FINANCIAL DATA
 
  The selected financial data presented below as of December 31, 1996, 1997
and 1998, and for each of the years in the four-year period ended December 31,
1998, have been derived from the financial statements of the Company which
have been audited by Arthur Andersen LLP, independent public accountants. The
selected financial data presented below as of December 31, 1994 and 1995 and
for the year ended December 31, 1994 have been derived from the unaudited
financial statements of the Company, which have been prepared on the same
basis as the audited financial statements of the Company. The selected
financial data presented below should be read in conjunction with the
Financial Statements and the Notes thereto and "Management's Discussion and
Analysis of Financial Condition and Results of Operations" appearing elsewhere
in this Prospectus.
 
<TABLE>
<CAPTION>
                                             Year Ended December 31,
                                     -------------------------------------------
                                      1994      1995     1996     1997    1998
                                     -------  --------  -------  ------- -------
                                     (In thousands, except per share amounts)
<S>                                  <C>      <C>       <C>      <C>     <C>
Statements of Operations Data:
Revenues...........................  $10,384  $ 17,547  $27,283  $38,669 $53,030
Costs and expenses:
  Cost of services.................    7,698    10,849   15,078   20,036  26,069
  Member relations and marketing...    2,807     5,275    6,677    8,106  10,980
  General and administrative.......    1,147     2,589    3,832    5,660   6,920
  Depreciation.....................      249       233      452      722     885
  Stock option restructuring and
   repurchase and special bonus
   plan(1).........................      --      9,390    1,473    3,063   5,342
                                     -------  --------  -------  ------- -------
    Total costs and expenses.......   11,901    28,336   27,512   37,587  50,196
                                     -------  --------  -------  ------- -------
Income (loss) from operations(1)...   (1,517)  (10,789)    (229)   1,082   2,834
Interest income....................      --        --       --       122     786
                                     -------  --------  -------  ------- -------
Income (loss) before provision
 (benefit) for state income taxes..   (1,517)  (10,789)    (229)   1,204   3,620
Provision (benefit) for state
 income taxes(2)...................     (151)   (1,076)     (23)     120     361
                                     -------  --------  -------  ------- -------
Net income (loss)..................  $(1,366) $ (9,713) $  (206) $ 1,084 $ 3,259
                                     =======  ========  =======  ======= =======
Pro forma net income (loss)(2).....  $  (887) $ (6,312) $  (134) $   704 $ 2,118
                                     =======  ========  =======  ======= =======
Pro forma net income (loss) per
 share--basic(3)...................  $ (0.07) $  (0.50) $ (0.01) $  0.06 $  0.17
Pro forma weighted average shares
 outstanding--basic(3).............   12,504    12,504   12,504   12,504  12,504
Pro forma net income (loss) per
 share--diluted(3).................  $ (0.07) $  (0.50) $ (0.01) $  0.05 $  0.14
Pro forma weighted average shares--
 diluted(3)........................   12,504    12,504   12,504   13,752  14,950
</TABLE>
 
<TABLE>
<CAPTION>
                                         As of December 31,
                          ----------------------------------------------------
                                                                      1998 Pro
                           1994    1995     1996     1997     1998    forma(4)
                          ------- -------  -------  -------  -------  --------
                                           (In thousands)
<S>                       <C>     <C>      <C>      <C>      <C>      <C>
Balance Sheet Data:
Cash and cash equiva-
 lents................... $   --  $   --   $   --   $ 8,937  $12,232  $13,160
Working capital..........   1,712  (3,530)  (4,645)  (5,005)  (8,721)  (8,299)
Total assets.............  13,154  18,568   23,107   39,868   48,928   51,215
Deferred revenues........   9,578  15,382   21,696   31,474   39,061   39,061
Total stockholder's eq-
 uity (deficit)..........   2,508  (7,205)  (7,411)  (5,042)  (8,147)  (3,160)
</TABLE>
 
                                      18
<PAGE>
 
<TABLE>
<CAPTION>
                                                                         Year Ended December 31,
                                                                         -------------------------
                                                                          1996     1997     1998
                                                                         -------  -------  -------
<S>                                                                      <C>      <C>      <C>
Other Operating Data:
Subscription programs(5)................................................       7        9       10
Member institutions(5)(6)(7)............................................     998    1,151    1,333
Total membership subscriptions(5)(7)....................................   1,485    1,808    2,263
Average subscription programs per membership(5)(7)......................    1.49     1.57     1.70
Program renewal rate(8).................................................      86%      85%      85%
</TABLE>
 
- --------
(1) Prior to the Spin-Off, The Advisory Board Company entered into the Liquid
    Markets Agreements. The obligations under the Liquid Markets Agreements
    were transferred to the Company in the Spin-Off to the extent such
    obligations were attributable to the employees of the Company.
    Furthermore, in the Spin-Off, there was a substitution of Company stock
    options for Advisory Board Company stock options. In December 1998, the
    Company and the Principal Selling Stockholder agreed to certain payments
    in the aggregate amount of $2.4 million to selected employees under a
    special bonus plan. The Company reflects charges relating to the Liquid
    Markets Agreements as stock option repurchase expenses over the required
    employment period ending December 31, 1998. Furthermore, the terms of the
    stock option substitution effected at the Spin-Off resulted in
    compensation expense being charged for the intrinsic value of certain
    stock options. These charges are reflected as stock option restructuring
    expenses over the vesting period of the options. Lastly, the Company
    recorded the special bonus plan charge of $2.4 million at the time of the
    commitment in December 1998. Excluding all of these expenses related to
    the Company's options and special bonus plan, Income (Loss) From
    Operations for 1994, 1995, 1996, 1997 and 1998 would have been $(1.5)
    million, $(1.4) million, $1.2 million, $4.1 million, and $8.2 million
    respectively. See "Certain Transactions Prior to the Offering--Stock
    Option Restructuring and Repurchase and Special Bonus Plan Charges."
(2) The Company has elected to be taxed under subchapter S of the Code,
    whereby the Principal Selling Stockholder (who prior to the Offering was
    the Company's sole stockholder) is liable for individual federal income
    taxes on the Company's taxable income. As the District of Columbia does
    not recognize S corporation status, the Company has been directly
    responsible for District of Columbia taxes. Effective as of the closing of
    the Offering, the Company will terminate its S corporation election and
    will be subject to corporate level federal income taxes. See "Certain
    Transactions Prior to the Offering--S Corporation Distribution and
    Termination of S Corporation Status." Accordingly, the pro forma net
    income (loss) reflects an estimate of the income taxes that would have
    been recorded if the Company had been a C corporation for the periods
    presented. See Note 6 to Financial Statements.
(3) Basic pro forma net income (loss) per share is computed by dividing pro
    forma net income (loss) by the weighted average number of shares of Common
    Stock outstanding during the period. Diluted pro forma net income (loss)
    per share is computed by dividing pro forma net income (loss) by the
    weighted average number of shares of Common Stock outstanding, including
    dilutive securities, during the period. See Note 2 and Note 9 to Financial
    Statements.
   
(4) Pro forma to give effect to (1) the distribution of $4.0 million to the
    Principal Selling Stockholder and the Bradley Trust prior to the closing
    of the Offering, (2) the termination of the Company's S corporation
    election and a resulting increase in the Company's federal deferred income
    tax asset of approximately $4.5 million as of December 31, 1998, (3) the
    repayment by the Principal Selling Stockholder to the Company of a
    promissory note in the principal amount of $6.5 million, (4) payment of
    the special bonus of $2.4 million, 60% in shares of Common Stock owned by
    the Principal Selling Stockholder and 40% in cash paid by the Company, (5)
    the payment by the Company of approximately $2.2 million in Offering
    expenses, on behalf of the Selling Stockholders, which will be treated for
    accounting purposes as a distribution to the Principal Selling Stockholder
    and the Bradley Trust, and (6) the closing of the Offering (including the
    impact of options exercised prior to the Offering and the resulting
    increase in the deferred income tax asset of approximately $4.6 million).
    See "Certain Transactions Prior to the Offering--Stock Option
    Restructuring and Repurchase and Special Bonus Plan Charges."     
(5) At the end of the period.
(6) The Company's members are primarily domestic and multinational
    corporations and secondarily large subsidiaries of corporations and non-
    profit institutions.
(7) Information presented with respect to the years ended December 31, 1996
    and 1997 has been adjusted to eliminate members during such periods who
    discontinued their membership prior to their annual renewal date in the
    subsequent year. Information with respect to the year ended December 31,
    1998 includes the Company's estimate of pending membership renewals and an
    estimate of members who will discontinue their membership prior to their
    annual renewal date in the subsequent year.
(8) Program renewal rate is defined as the percentage of memberships renewed,
    adjusted to reflect reductions in memberships resulting from mergers and
    acquisitions of members.
 
                                      19
<PAGE>
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATION
 
Overview
 
  The Corporate Executive Board provides "best practices" research and
analysis focusing on corporate strategy, operations and general management
issues. Best practices research identifies and analyzes specific management
initiatives, processes and strategies that have been determined to produce the
best results in solving common business problems or challenges. The Company
provides its research and analysis on an annual subscription basis to a
membership of over 1,300 of the world's largest and most prestigious
corporations. For a fixed annual fee, members of each subscription program
have access to an integrated set of services, including best practices
research studies, executive education seminars, customized research briefs and
on-line access to the program's database.
 
  Management's discussion and analysis and the accompanying financial
statements present the Company's results of operations as if it had operated
as a stand-alone entity in accordance with the accounting rules prescribed for
"carve-out" financial statements. The Company operated as a division of The
Advisory Board Company until October 31, 1997 when it was spun off to the
Principal Selling Stockholder, the sole stockholder of The Advisory Board
Company. See "Certain Transactions Prior to the Offering--Formation and Spin-
Off of the Company."
 
  Subscription memberships, which are annually renewable contracts and
generally payable by members at the beginning of the contract term, comprise
100% of the Company's revenues. Billings attributable to the Company's
subscription programs initially are recorded as deferred membership fees and
then recognized pro rata over the contract term.
 
  Over the last three years, the Company's revenues have grown at a compound
annual growth rate of 44.7% from $17.5 million in 1995 to $53.0 million in
1998, while costs have grown at a compound annual growth rate of 21.1% from
$28.3 million in 1995 to $50.2 million in 1998, resulting in operating losses
prior to 1997 and income from operations of $1.1 million and $2.8 million in
1997 and 1998, respectively. The Company attributes the growth in revenues to
an increase in the number of memberships, driven primarily by new sales for
existing subscription programs and the introduction of new subscription
programs. The increase in costs is a function of the growth in memberships and
subscription programs and investments in certain administrative functions.
Costs are also affected by stock option restructuring and repurchase charges
as further explained below.
 
  One measure of the Company's business is its annualized "Contract Value,"
which the Company calculates as the aggregate annualized membership revenue
attributed to all membership agreements in effect at a given point in time,
without regard to the remaining duration of any such agreement, including for
1998 an estimate of pending membership renewals and an estimate of members who
will discontinue their membership prior to their annual renewal date in the
subsequent year. The Company's experience is that a substantial portion of
members renew subscriptions for an equal or higher level of total membership
payments each year. Contract Value has grown at a compound annual growth rate
of 38.8% over the past three years and was $62.4 million at December 31, 1998.
 
  The Company's operating expenses consist of cost of services, member
relations and marketing, general and administrative expenses and depreciation.
Cost of services represents the costs associated with the production and
delivery of the Company's products and services, including compensation of
research personnel and in-house faculty, the production of published
materials, the organization of member meetings and all associated support
services. Member relations and marketing expenses represent the costs of
acquiring new members and renewing existing members and consist of
compensation expenses (including sales commissions), travel and all associated
support services. General and administrative expenses include the costs of
human resources and recruiting, finance and accounting, management information
systems, facilities management, new product development and other
administrative functions of the Company.
 
  The Company has Liquid Markets Agreements with certain employees relating to
the repurchase of certain options prior to the Spin-Off at fixed amounts. The
Company reflected these charges as stock option repurchase
 
                                      20
<PAGE>
 
expenses in the year ended December 1998. In conjunction with the Spin-Off,
The Advisory Board Company executed substitution agreements with each of the
employees of the Company participating in The Advisory Board Company's stock
option plan. The substitution allowed for the exchange of Advisory Board
Company options for Company options. The terms of the substitution resulted in
compensation expense being charged for the intrinsic value of certain options
over the vesting period of the options, reflected as stock option
restructuring expense. In December 1998, the Company approved a special bonus
plan for selected employees. The terms of the plan resulted in compensation
expense being charged in 1998 for the full value of the plan, reflected as
special bonus plan expense. See "Certain Transactions Prior to the Offering--
Stock Option Restructuring and Repurchase and Special Bonus Plan Charges."
 
Results of Operations
 
  The following table sets forth certain financial data as a percentage of
total revenues for the periods indicated:
 
<TABLE>
<CAPTION>
                                                             Year Ended
                                                            December 31,
                                                          --------------------
                                                          1996    1997   1998
                                                          -----   -----  -----
<S>                                                       <C>     <C>    <C>
Revenues:
  Total revenues......................................... 100.0%  100.0% 100.0%
Costs and expenses:
  Cost of services.......................................  55.2    51.8   49.2
  Member relations and marketing.........................  24.5    21.0   20.7
  General and administrative.............................  14.0    14.6   13.1
  Depreciation...........................................   1.7     1.9    1.7
  Stock option restructuring and repurchase and special
   bonus plan............................................   5.4     7.9   10.0
                                                          -----   -----  -----
    Total costs and expenses............................. 100.8%   97.2%  94.7%
                                                          -----   -----  -----
Income (loss) from operations............................  (0.8)%   2.8%   5.3%
                                                          =====   =====  =====
</TABLE>
 
Years Ended December 31, 1996, 1997 and 1998
 
  Revenues. Total revenues increased 41.8% from $27.3 million for the year
ended December 31, 1996 to $38.7 million for the year ended December 31, 1997,
and 37.0% to $53.0 million for the year ended December 31, 1998. The increase
in revenues is primarily attributable to increased sales of existing
subscription programs, the introduction of new subscription programs,
consistent renewal rates and, to a lesser degree, price increases. A portion
of the increase also is due to the introduction of on-site executive education
services to existing members resulting in price increases in 1996. The Company
introduced two new subscription programs in 1997 and one new subscription
program in 1998.
 
  The Company's program renewal rate, defined as the percentage of prior year
membership subscriptions renewed, was 86%, 85% and 85% for 1996, 1997 and
1998, respectively.
 
  Cost of Services. Cost of services decreased as a percentage of revenue from
55.2% for the year ended December 31, 1996 to 51.8% for the year ended
December 31, 1997 and 49.2% for the year ended December 31, 1998. This
decrease is attributable to the fixed nature of the production costs of best
practices research studies, as these costs are not materially affected by
growth in the number of members. The absolute cost of these services increased
32.5% from $15.1 million for the year ended December 31, 1996 to $20.0 million
for the year ended December 31, 1997 and 30.5% to $26.1 million for the year
ended December 31, 1998. The increases were principally due to the addition of
research teams related to the introduction of new subscription programs and
the increase in customized research briefs and executive education costs to
service the growing member base for existing and new subscription programs.
 
  Member Relations and Marketing.  Member relations and marketing costs
decreased as a percentage of total revenues from 24.5% for the year ended
December 31, 1996 to 21.0% for the year ended December 31,
 
                                      21
<PAGE>
 
1997 and to 20.7% for the year ended December 31, 1998. This decrease is
largely attributable to the Company's ability to leverage marketing personnel
to sell multiple subscription programs, offset in 1998 by the costs, largely
personnel and related, to increase marketing efforts for existing programs.
The absolute dollar costs of member relations and marketing increased 20.9%
from $6.7 million for the year ended December 31, 1996 to $8.1 million for the
year ended December 31, 1997, and 35.8% to $11.0 million for the year ended
December 31, 1998. The increases were primarily due to increases in personnel
and related costs to market and support new subscription programs, increased
marketing efforts for existing subscription programs and increased incentive
compensation correlated to the growth in revenues.
 
  General and Administrative. General and administrative expenses as a
percentage of total revenues were 14.0% for the year ended December 31, 1996,
14.6% for the year ended December 31, 1997 and 13.1% for the year ended
December 31, 1998. The percent changes reflect a higher level of investment in
new product development and human resources during 1997 to support the launch
of two additional subscription programs. The absolute dollar costs for general
and administrative expenses increased 50.0% from $3.8 million for the year
ended December 31, 1996 to $5.7 million for the year ended December 31, 1997,
and 21.1% to $6.9 million for the year ended December 31, 1998. The increases
reflect investments in new product development, human resources and
recruiting, management information systems and finance and accounting
functions required to support the Company's growth.
 
  Depreciation. Depreciation expense increased 59.7% from $452,000 for the
year ended December 31, 1996 to $722,000 for the year ended December 31, 1997
and 22.6% to $885,000 for the year ended December 31, 1998. The increase was
principally due to investments in computer equipment and software, office
furnishings and physical space to support the growth in the business.
 
  Stock Option Restructuring and Repurchase and Special Bonus Plan
Charges. The Company recognized $1.5 million, $1.8 million and $2.4 million in
compensation expense related to the repurchase of certain stock options
pursuant to the Liquid Markets Agreements for the years ended December 31,
1996, 1997 and 1998, respectively. As of December 31, 1998, the Company has
recognized all of the compensation expense related to these agreements. In
addition, the Company recorded compensation charges resulting from the
substitution of Company stock options for Advisory Board Company options as
part of the Spin-Off, of $1.3 million in 1997 and $506,000 in 1998, with
$382,000 in charges scheduled in 1999, $382,000 in 2000 and $189,000 in 2001.
Lastly, the Company recorded a compensation charge of $2.4 million in 1998
related to a special bonus plan. There are no subsequent charges to be
incurred related to the special bonus plan. See "Certain Transactions Prior to
the Offering--Stock Option Restructuring and Repurchase and Special Bonus Plan
Charges."
 
Liquidity and Capital Resources
 
  On October 31, 1997, the Company was a party to the Spin-Off transaction
with The Advisory Board Company whereby the assets and certain liabilities
relating to the corporate-related consulting business of The Advisory Board
Company were transferred to the Company, a newly incorporated entity. See
"Certain Transactions Prior to the Offering--Formation and Spin-Off of the
Company."
 
  The Company's financial statements present the accounts of the Company as if
it had operated as a stand-alone entity in accordance with the accounting
rules prescribed for "carve-out" financial statements for periods preceding
the Spin-Off on October 31, 1997. For these periods, net funds contributed by
the Company were treated as an affiliate receivable as cash flows were
commingled in The Advisory Board Company accounts. This affiliate receivable
was settled as part of the transfer of assets and liabilities in the Spin-Off.
 
  The Company entered into the Administrative Services Agreement, the Vendor
Contracts Agreement, the Member Contracts Agreement and the Sublease Agreement
with The Advisory Board Company coincident with the Spin-Off. See "Certain
Transactions Prior to the Offering--Formation and Spin-Off of the Company" and
"Certain Relationships and Transactions." The Company records costs associated
with these agreements monthly as a payable to affiliate, and expects to pay
amounts owed to The Advisory Board Company on a
 
                                      22
<PAGE>
 
quarterly basis. The Company believes that the services provided to the
Company by The Advisory Board Company under the Administrative Services
Agreement may be obtained by the Company from alternative sources and that the
fees payable pursuant to the Administrative Services Agreement approximate the
cost to internally provide or otherwise externally source such services. Under
the Vendor Contracts Agreement, the Company participates in certain vendor
contracts entered into by The Advisory Board Company for the provision of
certain services. The Company expects to enter into separately negotiated
vendor contracts as soon as reasonably practicable, and does not expect to
incur material incremental costs. The terms of the Administrative Services
Agreement and the Vendor Contracts Agreement expire on October 31, 1999. The
Company expects to have internally assumed or externally sourced the services
under both of these agreements prior to their termination. The Member
Contracts Agreement was terminated on October 31, 1998 in accordance with its
terms. The Company does not expect to incur any additional costs as a result
of the termination of the Member Contracts Agreement. Pursuant to the Sublease
Agreement, the Company subleases a portion of its office space from The
Advisory Board Company on terms consistent with the original lease agreement,
subject to termination by either the Company or The Advisory Board Company
with at least six months written notice.
 
  The Company has financed its operations to date through funds generated from
operations. Member subscriptions, which are annually renewable contracts and
generally payable by members at the beginning of the contract term, comprise
100% of the Company's revenues. The combination of year-to-year revenue growth
and payments in advance from members has historically resulted in positive
cash generation from operations. The Company generated $5.5 million in cash
from operating activities during 1996, $13.6 million in 1997 and $16.8 million
in 1998.
 
  The Company has obtained a commitment for a $10.0 million 12-month revolving
line of credit from a commercial bank. Borrowings under this line of credit
will be secured by the Company's assets.  The Company has no explicit purpose
for the line of credit and does not expect to utilize it over the initial 12-
month term.
 
  In 1997, the Company invested $11.8 million, of which $1.5 million was used
for the purchase of property and equipment, $3.8 million was used for the net
purchase of marketable securities and $6.5 million was loaned to the Principal
Selling Stockholder. The Company's investment policy allows for the investment
of excess funds in short-term to intermediate-term federal government or
investment grade obligations. In 1998, the Company invested $2.1 million for
the purchase of property and equipment and $118,000 for the net purchase of
marketable securities.
 
  In 1998, the Company distributed $6.9 million to the Principal Selling
Stockholder primarily to pay income taxes on the Company's S corporation
earnings and as distributions of estimated undistributed taxed or taxable
earnings of the Company. The Company expects to distribute, prior to the
closing of the Offering, an additional $4.0 million to the Principal Selling
Stockholder and the Bradley Trust as the Pre-Closing Distribution. The Company
will also pay approximately $2.2 million in Offering expenses, which will be
treated for accounting purposes as a distribution to the Principal Selling
Stockholder and the Bradley Trust.
 
  The Company holds a promissory note in the principal amount of $6.5 million
from the Principal Selling Stockholder. The note bears interest at an annual
rate of 7%, payable semiannually. The principal is payable on October 31,
2007. The note is collateralized by assets of the Principal Selling
Stockholder. The Principal Selling Stockholder has agreed to repay this note
from the proceeds of the Offering.
 
  As of December 31, 1998, the Company had cash and cash equivalents of $12.2
million. Management expects that its current cash balances and cash flows from
operations will satisfy working capital, financing activities and capital
expenditure requirements for the foreseeable future.
 
  The Company has certain commitments related to the relocation of its office
facilities. The Company estimates that it will incur approximately $5.0
million in leasehold improvements and related costs during 1999. The Company
has entered into a $1.3 million Letter of Credit Agreement with a commercial
bank to provide a
 
                                      23
<PAGE>
 
security deposit for the office space lease, expiring on June 23, 2003. The
Letter of Credit Agreement is collateralized by the Company's cash, accounts
receivable and physical property.
 
  The Company has Liquid Markets Agreements with certain employees relating to
the repurchase of certain stock options prior to the Spin-Off at fixed
amounts. The Company paid $2.6 million related to these agreements in 1998,
and is obligated to pay $4.7 million in 1999, and $3.1 million in 2000. The
Company and the Principal Selling Stockholder have agreed to pay special
bonuses to selected employees in an aggregate amount totaling $2.4 million.
The bonus is payable at the earlier of the date of an initial public offering
or December 31, 1999. If the amount is paid at the date of an initial public
offering, the obligation will be payable 60% in shares of Common Stock owned
by the Principal Selling Stockholder (valued for this purpose at the initial
price offered to the public) and 40% in cash by the Company. If the amount is
not paid in conjunction with an initial public offering, then the obligation
will be payable 100% in cash by the Company. See "Certain Transactions Prior
to the Offering--Stock Option Restructuring and Repurchase and Special Bonus
Plan Charges."
 
  In June 1997, the Financial Accounting Standards Board issued SFAS No. 130,
"Reporting Comprehensive Income," and SFAS No. 131, "Disclosures About
Segments of an Enterprise and Related Information." The Company adopted both
of these standards during 1998.
 
  SFAS No. 130 requires "comprehensive income" and the components of "other
comprehensive income," to be reported in the financial statements and/or notes
thereto. As the Company currently does not have any components of "other
comprehensive income," reported net income is the same as "total comprehensive
income" for 1997 and 1998.
 
  SFAS No. 131 requires entities to disclose financial and descriptive
information about its reportable operating segments. It also establishes
standards for related disclosures about products and services, geographic
areas, and major customers. The Company has made the appropriate disclosures
required by SFAS No. 131.
 
  The Company, since inception, has recognized revenue ratably over the term
of the related membership, generally 12 months. The Securities and Exchange
Commission has advised the Company that it is evaluating the accounting rules
and interpretations covering revenue recognition of membership fees. Until the
Securities and Exchange Commission staff issues these interpretative
guidelines, it is unclear what impact, if any, they will have on the Company's
current accounting policy. Any change could have a material effect on the
manner in which the Company recognizes revenue.
 
Year 2000 Compliance
 
  Many existing computer programs use only two digits to identify a year in
the date field. These programs were designed without consideration for the
impact of the upcoming century change in the year 2000. If not corrected,
applications which are not year 2000 compliant may fail or create erroneous
results when processing year 2000 information. The Company is in the process
of completing its analysis and assessment of the potential effects of the year
2000 century change and has begun efforts to identify, evaluate and implement
changes to the Company's systems and applications necessary to achieve a year
2000 date conversion.
 
  The Company has audited all of its hardware systems and software
applications. The Company has determined that all of its hardware systems are
either currently compliant or have intermediate upgrades available from the
manufacturer. The Company utilizes 382 distinct software programs in running
its computer operations. Of these systems, the Company has classified 64 as
mission-critical systems, defined as systems whose failure potentially could
have a significant adverse effect on the Company's ability to conduct its
business efficiently. These include end-user software applications, back-
office systems and embedded software in computer hardware systems. Of the
64 mission-critical systems, four are custom software systems developed for
the Company. Two of these four have been modified and tested to ensure their
year 2000 compliance and the Company expects that the two remaining custom
systems will be brought into compliance by May 1999. The rest of the Company's
 
                                      24
<PAGE>
 
software systems are commercial off-the-shelf packages ("COTS"). The Company's
60 mission-critical COTS programs currently are under review for year 2000
compliance. The Company has determined that 31 of the mission-critical COTS
programs are fully compliant. The Company has made this determination by
reviewing official year 2000 compliance statements published by the
manufacturers of these programs and does not plan to conduct its own tests to
verify such statements. Of the remaining applications, manufacturers have made
available upgrades to bring the systems into compliance. The Company has
scheduled upgrades for each of these programs to be completed before June
1999. The non-information technology systems developed internally by the
Company are not sensitive to year 2000 issues.
 
  The Company estimates the cost to complete the conversion to be $220,000.
The Company expects to be year 2000 compliant by June 1999. The costs of the
year 2000 conversion and the date on which the Company plans to complete the
project are based upon management's best estimates, which are derived on the
basis of numerous assumptions of future events. There can be no guarantee that
these estimates will be achieved and actual results could differ materially.
 
  Vendors or other third parties that could affect the Company's operations
include suppliers of utility services, travel and hotel services, office
supply vendors, equipment and technology vendors and mail, telephone, Internet
and other communication services. Each of the Company's department directors
has been instructed to communicate with their major suppliers with respect to
such vendors' year 2000 compliance status. All of the Company's departments
have been directed to make arrangements with an alternative vendor if it
appears that the current vendor will not achieve compliance by the year 2000.
There can be no guarantee, however, that the systems of the Company's major
vendors, including providers of public utilities, will be timely converted, or
that a failure to convert by another company or organization, or a conversion
that is incompatible with the Company's systems, would not have an adverse
effect on the Company.
 
  Although the Company anticipates that minimal business disruptions will
occur as a result of year 2000 issues, possible consequences include loss of
communications with members, inability to conduct marketing efforts and on-
site seminars as a result of travel and communications disruptions, delay in
the production and distribution of studies and reports, inability to conduct
research and surveys, and disruption of similar normal business activities.
The Company believes that the conversion and modification efforts by the
Company and its vendors will mitigate the risks associated with year 2000
issues. If, however, the Company or its essential vendors do not complete the
necessary modifications or conversions in a timely manner or if such
modifications or conversions fail to achieve the proper results, the Company's
operations may be adversely effected.
 
  The Company does not intend to develop any contingency plans to address
possible failures by the Company or its vendors to be year 2000 compliant with
respect to information technology systems. The Company does not believe that
such contingency plans are required because it believes that the Company and
its information technology suppliers will be year 2000 compliant before
January 2000. The Company currently does not have any contingency plans to
address possible failures by its vendors to be year 2000 compliant with
respect to non-information technology systems, but expects to develop such
plans by June 1999.
 
 
                                      25
<PAGE>
 
                                   BUSINESS
 
Overview
 
  The Corporate Executive Board provides "best practices" research and
analysis focusing on corporate strategy, operations and general management
issues. Best practices research identifies and analyzes specific management
initiatives, processes and strategies that have been determined to produce the
best results in solving common business problems or challenges. The Company
provides its research and analysis on an annual subscription basis to a
membership of over 1,300 of the world's largest and most prestigious
corporations. For a fixed annual fee, members of each subscription program
have access to an integrated set of services, including best practices
research studies, executive education seminars, customized research briefs and
on-line access to the program's database. For each of the last three years,
the Company's program renewal rate (defined as the percentage of prior year's
membership subscriptions renewed, adjusted to reflect reductions in membership
resulting from mergers and acquisitions of members) exceeded 84%. More than
64% of the Fortune 500 companies are members of the Corporate Executive Board.
 
  The Company's membership-based model, in which all subscribers (or
"members") participate in the Company's research and analysis, is central to
its business strategy. This model gives the Company access to the best
business practices of its members and enables the Company to provide
comprehensive analysis on current business issues, assessing the collective
experiences and knowledge of its members on leading edge topics. By
participating in the Corporate Executive Board, members can learn about the
best practices of the most progressive corporations in the world at a fraction
of the cost of a customized analysis performed by any of the major consulting
firms. The Company does not believe that in-house research and analysis
departments at individual corporations could obtain, at any price, similar
information from other corporations about their management practices. In
general, the membership comprises the most progressive competitors in each
industry sector. Representative members include American Express, British
Airways, Citigroup, Coca-Cola, Dell, Hewlett-Packard, Lucent, Merrill Lynch,
Microsoft, Procter & Gamble and Xerox. No one member accounted for more than
2% of revenues in any of the last three fiscal years. The Company believes
that there is no other entity that enables corporations to study a broad range
of the best practices of hundreds of other business enterprises for fixed,
annual subscription fees.
 
  The Company currently offers ten discrete subscription programs, each
focusing on a single business constituency: finance, sales, information
technology, corporate strategy, human resources, bank operations, insurance,
trust and private banking, business banking and retail banking. The Company
has added three new subscription programs over the past two years and
anticipates adding one to three new subscription programs per year for the
foreseeable future. Each subscription program charges a separate fixed annual
subscription fee and is served by a dedicated staff of analysts and
researchers. Subscriptions generally are renewable on a 12-month basis, and
the average price per subscription program at December 31, 1998 was
approximately $27,500. In 1998, the Company published 24 best practices
research studies, completed over 12,500 customized research briefs and
provided executive education services to 1,187 member corporations reaching
approximately 25,000 executive participants. The Company's 215 analysts and
researchers have compiled a proprietary database of 261 best practices
research studies and 25,000 customized research briefs containing over 100,000
profiles of corporate practices.
 
  The Corporate Executive Board's revenue and costs have grown at compound
annual rates of 44.7% and 21.1%, respectively, from December 31, 1995 through
December 31, 1998. Because each subscription program provides its membership
with standardized best practices research studies and executive education
seminars, new members immediately add revenues while only incrementally
increasing operating costs. The Company's growth strategy is to cross-sell
additional subscription programs to existing members, to add new members and
to develop new subscription programs.
 
Industry Background
 
  Corporations today are experiencing greater competitive demands and facing
increasingly complex strategic and operational issues. The globalization of
the economy, the transformation from an industrial era to an information age
and the accelerating pace of technological change are dramatically altering
the business
 
                                      26
<PAGE>
 
environment. In response to these trends, companies are exploring new business
strategies as well as reevaluating the performance of individual departments
within their organizations in order to maintain their competitive edge. The
pace of change is driving a greater interest in gaining access to leading
management practices and solutions to common business problems on a cross-
industry basis.
 
  Capitalizing on the growing demand for information on business and
management issues, the professional information services industry has
experienced significant growth over the past few years. Industry participants
have approached the market for business-focused information by offering a
variety of products and services, including market research, strategic
planning, implementation services and educational programs. Services also
differ by the level of engagement, with some offering project-driven or long-
term consulting contracts, and others providing continuous research
publishing. Within this broad industry, management consulting and training and
development have emerged as key segments, representing $50 billion and $59
billion in 1997 revenues, respectively. Other entities, such as trade
associations, non-profit think-tanks and research and database companies, also
offer research, consulting and education services.
 
  The Corporate Executive Board offers a distinctive approach that combines
many of the benefits of general management consulting and training and
development firms. The Company's research and analysis covers the same major
business issues generally addressed by management consulting firms, such as
issues concerning managing growth, cost reduction, outsourcing and strategy
development. The distinction is that the Corporate Executive Board provides
the same, standardized product to the whole of its membership at a fraction of
the cost to each individual member of consulting services. In common with
training and development firms, the Company offers education services both on-
site at member institutions and in large multi-company settings. Unlike
training and development firms, which typically invest only periodically in
new curriculum development, the Corporate Executive Board's curriculum is
constantly updated by its best practices research organization. A further
distinction is the seniority and breadth of the audience, with the Company
briefing executive and senior management staff drawn from a broad range of
industry sectors, business units and departments. Because of this unique
approach to the market, the Company believes that it offers its customers a
superior value proposition.
 
Business Strategy
 
  The Company's goal is to research and analyze the most pertinent and timely
strategic and operational issues facing its membership, and to distribute the
results of this analysis to its membership in the most efficient, effective
and helpful manner. The Company's membership model allows it to draw upon a
large and growing universe of issues and solutions of relevance to today's
leading corporations. The Company actively engages its membership to help
focus its research on the challenges of the current business environment and
to maintain and enhance its position as the leading provider of best practices
research and analysis.
 
  . Maintain Membership-Based Model. The Company believes that the
    membership-based model is key to its success and continually strives to
    increase the ties between its members and the Corporate Executive Board.
    The Company encourages members to view the Corporate Executive Board as
    their proprietary off-site research facility. The Company's fixed-fee
    economic model promotes frequent use of the Company's products and
    services. The Company believes that member satisfaction grows as members
    access more of the Company's services, and that the growing roster of
    satisfied members validates the Company's business model and induces new
    members to join the Corporate Executive Board.
 
  . Focus on Best Practices Research. The focus of the Company's work is
    research on best demonstrated business and management practices. Many
    large corporations believe that there are certain research economies and
    other benefits that can be realized by learning from the experiences of
    similar entities facing common business problems. The Company believes
    that there will be a continuing desire on the part of progressive
    corporations to access evolving solutions to these common business
    problems. The Company believes that its success to date has uniquely
    positioned it as a leading source for identifying, studying, evaluating
    and communicating these evolving solutions.
 
  . Continue Research and Analysis Excellence. The Company believes that the
    quality of its research and analysis has driven the success of the
    Corporate Executive Board. The Company regularly interacts with
 
                                      27
<PAGE>
 
   senior executives at member institutions to identify the most important
   strategic and operational issues for research and analysis. Experienced
   program directors are responsible for assuring that the Company's research
   methodology is applied to all studies and that research quality is
   maintained across all subscription programs. The Company is highly
   selective in its hiring, recruiting only the top graduates of the leading
   universities and graduate schools. Furthermore, the Company emphasizes
   continual training of all employees in key areas, including industry
   analysis, economics, quantitative modeling, root-cause analysis and
   presentation skills. The Company currently employs over 200 analysts and
   researchers.
 
  . Leverage Economic Model. All of the Company's revenues are derived from
    annual fees for each subscription program. Most of the Company's costs of
    delivering its products and services in each subscription program are
    fixed and do not vary with the number of subscribers. The Company expects
    to increase revenues and improve operating margins as it adds new members
    to each subscription program.
 
Growth Strategy
 
  The Company believes that demand for its services will continue to grow, as
even the most prestigious corporations recognize the need to improve their
performance and seek access to other companies' solutions to common corporate
problems. The Company's growth strategy centers on leveraging the formula that
it has developed across the past decade by cross-selling subscription programs
to existing members, adding new members and developing new subscription
programs.
 
  . Cross-sell Additional Subscription Programs to Existing Members. On
   average, members currently participate in 1.7 subscription programs.
   Corporations that have been members for three or more years currently
   participate in an average of 2.4 subscription programs. The Company is
   actively cross-selling additional programs to its members and believes
   that most members are potential participants in approximately four to five
   of its current subscription programs, which are directed at corporate
   staff positions maintained by most major companies. These subscription
   programs are: the Working Council for Chief Financial Officers, directed
   at chief financial officers; the Sales Executive Council, directed at
   senior sales executives; the Working Council for Chief Information
   Officers, directed at chief information officers; the Corporate Strategy
   Board, directed at senior corporate strategists; and the Corporate
   Leadership Council, directed at senior human resources executives. As the
   Company develops new subscription programs, cross-selling opportunities
   will increase.
 
  . Add New Members. The Company has targeted 1,300 additional institutions
    worldwide as potential new members, including corporations with revenues
    greater than $500 million and financial institutions with assets in
    excess of $1 billion. In 1998, the Company added 372 new member
    institutions.
 
  . Develop New Subscription Programs. The Company currently offers
    subscription programs covering ten business constituencies: finance,
    sales, information technology, corporate strategy, human resources, bank
    operations, insurance, trust and private banking, business banking and
    retail banking. The Company has added three new subscription programs in
    the past two years and has thus far identified 25 additional potential
    business constituencies that may be suitable for subscription programs in
    the future.
 
 
The Membership
 
  The Company's membership-based model, in which all subscribers (or
"members") share in the Company's research and analysis, is central to its
business strategy. This model gives the Company access to the best
demonstrated practices of its members and enables the Company to provide
comprehensive analysis on current business issues, utilizing the collective
experiences and knowledge of its members. By participating in the Corporate
Executive Board, members can learn about the best practices of the largest
corporations in the world at a fraction of the cost of a customized analysis
performed by any of the major consulting firms. The Company does not believe
that in-house research and analysis departments at individual corporations
could obtain, at any price, similar information from other corporations about
their business practices. The Company believes that there is no other entity
that enables corporations to study a broad range of the business practices of
hundreds of other business enterprises for fixed annual subscription fees.
 
                                      28
<PAGE>
 
  The Company regularly interacts with senior executives at member
institutions to identify the most important strategic and operational issues
for research and analysis and continually strives to increase the ties between
its members and the Corporate Executive Board. The Company's products and
services are available exclusively to members. The Company's fixed-fee
economic model promotes frequent use of the Company's products and services.
The Company encourages members to view the Corporate Executive Board as their
proprietary off-site research facility. The Corporate Executive Board believes
that member satisfaction grows as members access more of the Company's
services, and that the growing roster of satisfied members validates the
Company's business model and induces new members to join the Corporate
Executive Board.
 
  More than 64% of the Fortune 500 companies are members of the Corporate
Executive Board. At December 31, 1998, the Corporate Executive Board included
1,333 members. The membership includes some of the largest companies in each
sector. Selected members that are representative of the Company's membership
base are identified in the following table:
<TABLE>
<S>                                      <C>                                     <C>
CHEMICALS                                CONSUMER PRODUCTS                       ENERGY

Bayer Corporation                        Anheuser-Busch Companies, Inc.          British Petroleum Company p.l.c.
The Dow Chemical Company                 Cadbury Schweppes PLC                   Enron Corporation
Eastman Chemical Company                 The Coca-Cola Company                   Mobil Corporation
E.I. du Pont de Nemours & Co.            The Gillette Company                    PacifiCorp
Imperial Chemical Industries p.l.c.      NIKE, Inc.                              Shell Oil Company
Monsanto Company                         The Procter & Gamble                    Texaco Inc.
                                         Company                                 TransCanada Pipelines Limited
                                         RJR Nabisco Holdings Corp.
FINANCIAL SERVICES                       Unilever PLC
                                                                                 MANUFACTURING
American Express Company
Barclays Bank PLC                        INSURANCE                               ABB Asea Brown Boveri
Charles Schwab & Co., Inc.                                                       The Boeing Company
The Chase Manhattan Corporation          Aetna Inc.                              Ford Motor Company
Citigroup Inc.                           The Allstate Corporation                General Electric Company
Deutsche Bank AG                         CIGNA Corp.                             Lockheed Martin Corporation
Fidelity Investment Co.                  John Hancock Mutual Life                3M
Merrill Lynch and Co., Inc.               Insurance Company                      Philips Electronics NV
                                         New York Life Insurance                 Siemens AG
                                          Company
MEDIA AND PUBLISHING                     The Prudential Insurance
                                          Company of America                     TECHNOLOGY
British Sky Broadcasting Group plc       State Farm Mutual Automobile
Comcast Corporation                       Insurance Company                      America Online Inc.
Dow Jones & Company, Inc.                                                        Compaq Computer Corporation
The McGraw-Hill Companies                                                        Dell Computer Corp.
The New York Times Company               RETAIL                                  Electronic Data Systems Corp.
The Thomson Corporation                                                          Hewlett-Packard Company
Time, Inc.                               Best Buy Co., Inc.                      Intel Corporation
The Washington Post Company              The Gap, Inc.                           Microsoft Corp.
                                         The Home Depot, Inc.                    SAP AG
                                         The Limited, Inc.                       Sun Microsystems, Inc.
TELECOMMUNICATIONS                       L.L. Bean, Inc.
                                         McDonald's Corporation
AT&T Corporation                         Sears Roebuck and Co.
Bell Atlantic Corporation                Starbucks Coffee Company
Bell Canada
Bell South Corporation
British Telecommunications p.l.c.        INSTITUTIONAL
GTE Corporation
Lucent Technologies Inc.                 Department of Commerce
MCI WorldCom, Inc.                       Department of Treasury
Nokia Group                              Duke University
US WEST Inc.                             Harvard University
                                         National Security Agency
                                         University of Virginia
</TABLE>
 
                                      29
<PAGE>
 
  Memberships are renewable annually. The following table sets forth
information with respect to members, subscriptions and renewals for the
periods shown:
 
<TABLE>
<CAPTION>
                                                    Year Ended December 31,
                                                    -------------------------
                                                     1996     1997     1998
                                                    -------  -------  -------
   <S>                                              <C>      <C>      <C>
   Subscription programs(1)........................       7        9       10
   Member institutions(1)(2)(3)....................     998    1,151    1,333
   Total membership subscriptions(1)(3)............   1,485    1,808    2,263
   Average subscription programs per member
    institution(1)(3)..............................    1.49     1.57     1.70
   Program renewal rate(4).........................      86%      85%      85%
</TABLE>
- --------
(1) At the end of the period.
(2) The Company's members are primarily domestic and multinational
    corporations and secondarily large subsidiaries of corporations and non-
    profit institutions.
(3) Information presented with respect to the years ended December 31, 1996
    and 1997 has been adjusted to eliminate members during such periods who
    discontinued their membership prior to their annual renewal date in the
    subsequent year. Information with respect to the year ended December 31,
    1998 includes the Company's estimate of pending membership renewals and an
    estimate of members who will discontinue their membership prior to their
    annual renewal date in the subsequent year.
(4) Program renewal rate is defined as the percentage of memberships renewed,
    adjusted to reflect reductions in memberships resulting from mergers and
    acquisitions of members.
 
Products and Services
 
 General
 
  The Corporate Executive Board's research products and services are
renewable, membership-based subscription programs that focus on identifying,
analyzing and describing best demonstrated management practices. In 1998, the
Company published 24 best practices research studies, delivered over 12,500
customized research briefs and provided executive education services to
1,187 member corporations reaching approximately 25,000 executive
participants. In general, the research focuses primarily on identifying best
demonstrated management practices, and secondarily on critiquing widely-
followed but ineffective practices. The Company's staff of 215 analysts and
researchers conducted over 40,000 company interviews in 1998, focusing on a
large number of substantive areas, including compensation, employee relations,
training, finance, cost management, performance metrics, risk management,
marketing, sales, new product development and strategic alliances. The
Corporate Executive Board believes that it adds value by focusing the
attention of senior management on important issues and providing an unbiased,
objective analysis of best practices for dealing with those issues currently
employed by the most successful corporations in the world.
 
  The Corporate Executive Board's research programs offer a cost-effective,
time-efficient opportunity for senior executives to learn from the practices
and experiences of other corporations from around the world. Member
institutions can participate in one of the Company's subscription programs for
a fraction of the cost of proceeding independently either through an internal
research effort or through engagement of the services of a management
consulting firm.
 
  Each subscription program is guided by a 12- to 18-month agenda. Each
subscription program has a research director who is responsible for applying
the Company's research methodology to produce best practices studies and for
maintaining research quality across all subscription program services. Using
fax polls, steering sessions and one-on-one interviews, the subscription
program's director works closely with the membership to identify agenda topics
of shared interest and to set the subscription program's research priorities.
Each subscription program is staffed by a dedicated team of researchers,
analysts and instructors who collectively research and write the best
practices studies, complete the customized research briefs and present the
findings to the membership.
 
  The Company currently offers the following ten subscription programs, each
targeting a specific group of senior executives within a corporation's
headquarters or divisions: finance, sales, information technology, corporate
strategy, human resources, bank operations, insurance, trust and private
banking, business banking and retail banking.
 
                                      30
<PAGE>
 
  The following table describes the Company's current subscription programs:
 
<TABLE>
<CAPTION>
      Subscription           Year                              Primary Executive
      Program Name        Introduced      Research Focus          Constituency     Membership Base
      ------------        ---------- ------------------------- ------------------ ------------------
<S>                       <C>        <C>                       <C>                <C>
Working Council for          1998    Finance                   Chief financial    Corporations
 Chief Financial                                               officers           across all
 Officers...............                                                          industries
Sales Executive              1997    Sales                     Senior sales       Corporations
 Council................                                       executives         across all
                                                                                  industries
Working Council for          1997    Information technology    Chief information  Corporations
 Chief Information                                             officers           across all
 Officers...............                                                          industries
Corporate Strategy           1996    Corporate strategy        Senior corporate   Corporations
 Board..................                                       strategists        across all
                                                                                  industries
Corporate Leadership         1993    Human resources           Senior human       Corporations
 Council................                                       resources          across all
                                                               executives         industries
Operations Council......     1992    Bank operations           Senior Vice        Commercial banks
                                                               Presidents of bank
                                                               operations
Insurance Advisory           1991    Insurance                 Senior marketing   Insurance
 Board..................                                       executives         providers
The VIP Forum...........     1989    Trust and private banking Executives in      Brokerage houses,
                                                               marketing and line commercial, trust
                                                               management         and private banks,
                                                                                  mutual fund
                                                                                  companies
Business Banking Board..     1986    Business banking          Executive Vice     Commercial banks
                                                               Presidents of      and nonbank
                                                               commercial banking lenders
Council on Financial         1983    Retail banking            Executives in line Commercial banks,
 Competition............                                       management,        consumer credit
                                                               marketing and      lenders
                                                               brand management
</TABLE>
 
  The Company's subscription programs provide members an integrated set of
products and services for a single annual fee. Each program provides its
members with (i) best practices research studies, (ii) executive education
services, (iii) customized research briefs and (iv) on-line access to the
program's proprietary research database. A description of each service
follows:
 
 Best Practices Research Studies
 
  Each subscription program generally publishes two to five best practices
research studies annually, each addressing a specific corporate issue or
problem identified in the research agenda. Each best practices study is
designed to present the conclusions and supporting best practices in a
graphical format, enabling the intended audience quickly to assimilate the 100
to 300 pages of research content. Each report is created using the Company's
structured research methodology: topic selection, root cause analysis,
secondary research, primary interviewing, analysis of findings and report
writing. Each program director can call upon the support of the Chief Research
Officer and his staff to provide assistance in framing arguments, screening
best practices and editing studies and their derivative executive education
curriculum content.
 
  In the course of researching a best practices study topic, the research team
typically will review thousands of pages of business and academic literature
to ground their understanding of the issues. They then will initiate the
research process to identify and evaluate specific business processes,
strategies and management practices, typically conducting hundreds of in-depth
interviews with corporations, industry experts, management consultants and
academic leaders. During the course of its research, a team generally analyzes
and evaluates dozens of specific management practices in an attempt to isolate
the eight to 15 most important practices worthy of potential implementation by
members, separating out demonstrated and proven business practices and
disposing of those concepts, whether popular or conventional, that largely
have failed.
 
  Each best practices study comprises two principal elements--the essay and
the best practices. The essay consists of a series of observations and
supporting evidence that frames the problems or business issues, helping to
communicate the need for change or action to the membership at large. Each
study typically contains eight to 15 best practices, and each best
 
                                      31
<PAGE>
 
practice generally features a 12- to 20-page case study of narrative text,
graphics and supporting analytical detail describing how the best practice
works, how it was implemented and the best practice's costs and benefits. In
many cases, the Company assigns pseudonyms to protect the confidentiality of
proprietary information outlined in a study. Consistent application of the
Company's research methodology across all subscription programs enables the
Company to increase the number of its subscription programs while maintaining
research quality.
 
  The following table lists selected agenda topics for each of the Company's
ten subscription programs. These topics were chosen because the Company
believes them to be representative of the agenda topics for the Company's
subscription programs:
 
<TABLE>
<CAPTION>
      Program Name                 Published or Planned Best Practices Report Titles
      ------------        --------------------------------------------------------------------
<S>                       <C>                    <C>                    <C>
Working Council for       Motivating and         Models for Effective   Corporate Performance
Chief Financial Officers  Rewarding Growth:      CEO-CFO Working        Metrics: Evolving
                          Finance's Role in      Partnerships           Measurement Systems
                          Supporting Growth                             at First-Tier
                                                                        Companies
Sales Executive Council   Customer Integration:  Perfecting the Sales   Existing Customer
                          Models, Lessons and    Channel: Economics     Strategy: Innovations
                          Best Practices for     and Impact of the New  in Customer Service,
                          Maximizing             Electronic             Retention and
                          Relationships          Marketplace            Recovery
Working Council for       Far From the Crowd:    Creating Business      Quest for Customer
Chief Information         Strategies for         Advantage: Models for  Contact: Case Studies
Officers                  Attracting IT Talent   Partnering with the    in IT-Enabled Needs
                          in a Perfecting Labor  Line                   Identification
                          Market
Corporate Strategy Board  Unbroken Growth:       Stall Points:          Strategy Development
                          Salient Insights from  Barriers to Growth     Excellence: Frontier
                          Inaugural Research     for the Large          Practices of the
                                                 Corporate Enterprise   World's Great
                                                                        Strategic Planning
                                                                        Departments
Corporate Leadership      Forced Outside:        Heart of the           Recruiting
Council                   Leadership Talent      Enterprise: Core       Excellence: Emerging
                          Sourcing and           Competencies and the   Practices and
                          Retention              Renaissance of the     Organizational
                                                 Large Corporation      Structures
Operations Council        Retail Teleservicing:  Item Processing:       Retail Lockbox:
                          Achieving Operational  Strategies for         Achieving Operational
                          Excellence in          Continuing Cost-       Excellence in
                          Financial Services     Reduction in Check     Scannable Remittance
                          Call Centers           Processing Operations  Processing
Insurance Advisory Board  The "Retail"           The New Gold           To Wake the Sleeping
                          Revolution:            Standard: Restoring    Giant: Insurance
                          Retirement Services    Profitability Through  Distribution in an
                          in an Era of Self-     Customer Value         Open Market
                          Reliance               Management
The VIP Forum             The Future of Advice:  Beyond Customer        Great Expectations:
                          World-Class            Satisfaction: A        The Challenge of
                          Strategies for         Quantitative Analysis  Serving the Super-
                          Serving the "New       of Satisfaction in     Wealthy
                          Investor"              the Affluent Market
Business Banking Board    Escaping the           Cleared for Takeoff:   Charting a New
                          Commodity Trap:        Matching Strategy to   Course: Forging the
                          Strategies for         Customer Needs         Value-Focused Middle
                          Competing in an                               Market Bank
                          Economically Rational
                          Market
Council on Financial      Present at the         Financial Innovation   Traveling by
Competition               Creation: Redefining   Around the World:      Daylight: Using
                          Competitive Advantage  1998 Review of New     Profitability
                          Through Data-Driven    Retail Products        Information to Guide
                          Marketing and                                 the Retail Financial
                          Management                                    Institution
</TABLE>
 
 Executive Education
 
  The Company's executive education curriculum, which is based on its
proprietary best practices research, is provided to member companies
worldwide. The Company delivers executive education services through two
primary channels--general membership meetings and, in some programs, tailored
on-site seminars. The Company's executive education provides lively,
interactive forums for reinforcing the Company's textual best practices
research studies.
 
  In 1998, the Company delivered executive education services to 1,187 member
companies, reaching approximately 25,000 executive participants. Each
subscription program hosts a series of general membership
 
                                      32
<PAGE>
 
meetings, where the most important research findings from the annual agenda
are presented to groups of ten to 200 members. In 1998, the Company hosted 67
member meetings in North America, Europe and Australia/Asia.
 
  As an example, the following table sets forth the 1998 schedule of general
membership meetings hosted by the Corporate Leadership Council, the Company's
human resources subscription program, which has the largest membership base of
any of the Company's subscription programs. The Corporate Leadership Council
was selected because the Company believes that the meetings hosted by this
subscription program are representative of the meetings hosted by the
Company's subscription programs. Each subscription program hosts similar
general membership meetings.
 
<TABLE>
<CAPTION>
      Meeting Date           Meeting Location                    Target Audience
      ------------           -----------------               ------------------------
     <S>                     <C>                             <C>
     February 16             Sydney, Australia               HR Executives
     February 17             Sydney, Australia               HR Staff & Line Managers
     April 17                New York, NY                    HR Staff & Line Managers
     May 14-15               Washington, D.C.                HR Executives
     September 14-15         Washington, D.C.                HR Executives
     October 8-9             Washington, D.C.                HR Executives
     October 13-14           San Francisco, CA               HR Executives
     October 19              Atlanta, GA                     HR Staff & Line Managers
     October 23              New York, NY                    HR Staff & Line Managers
     October 26-27           Washington, D.C.                HR Executives
     November 2              Toronto, Canada                 HR Staff & Line Managers
     November 6              Chicago, IL                     HR Staff & Line Managers
     November 9-10           Washington, D.C.                HR Executives
     November 13             London, England                 HR Staff & Line Managers
     November 16-17          London, England                 HR Executives
     November 23-24          Washington, D.C.                HR Executives
     December 10-11          Washington, D.C.                HR Executives
</TABLE>
 
  Certain subscription programs also provide on-site executive education
seminars as part of their membership services. Once a year, those members
entitled to an on-site seminar can schedule a Corporate Executive Board
faculty member to travel to their corporation to deliver an executive
education module, typically a one- to three-hour lecture, case study or
facilitated working group discussion, of the member's choice. In 1998, the
Company conducted 761 on-site seminars at member corporations.
 
  The Corporate Executive Board deploys a staff of 14 full-time and part-time
faculty who conduct the on-site education seminars. The library of executive
education modules is updated throughout the year as new best practices
research is translated into executive education content.
 
  As an example, the following table sets forth current executive education
modules available for on-site seminars to members of the Corporate Leadership
Council. The Corporate Leadership Council was selected because the Company
believes that the executive education modules offered by this subscription
program are representative of the executive education modules offered by those
subscription programs that offer on-site education.
 
<TABLE>
<CAPTION>
                       Module                      Target Audience
                       ------                      ---------------
   <S>                                             <C>
   Role of Human Resources in the New Corporate    HR Management Teams
    Headquarters
   Workforce Management Structures of the New      Line Managers
    "Employers of Choice"
   Core Competencies and the Renaissance of the    HR Executives & Line Staff
    Large Corporation
   Revolutionizing Transactional Service Delivery  HR Managers
   Leadership Shortage Across the Spectrum         HR Management Teams
   Accelerating the Development of Rising Leaders  HR Executives, Executive
                                                    Development & Succession
                                                    Planning Teams
   Leadership Talent Sourcing and Retention        Recruiting and Staffing
                                                   Teams
</TABLE>
 
 
                                      33
<PAGE>
 
 Research Briefs
 
  Members of most subscription programs may assign short-answer, customized
research requests. Individual briefs can take the form of a literature search,
vendor profile, data retrieval or original primary and secondary research,
depending upon the need of the requesting member. In 1998, the Company
completed over 12,500 customized assignments on behalf of over 1,250
requesting members.
 
  Once initiated, each customized research effort takes several days
(approximately eight days on average) to complete, depending on the depth of
the information request, the type of research product desired and the time
requirements of the member. Researchers typically begin their inquiry with a
review of the Company's proprietary research archives and then conduct a broad
literature search to identify relevant background material and practices.
 
  In addition, certain subscription programs produce a series of short
research briefs (20-50 pages) that address issues of critical interest to the
membership. Projects are generated through an ongoing dialogue between members
and research managers and are executed over the year by the research staff.
 
  Written research briefs generally contain five case studies or profiles of
interviewed institutions, highlighting significant trends, successful
practices and comparative responses to a range of questions. Upon completion
and delivery of the written brief to the requesting member, the best of these
briefs are accessible to other members through proprietary databases. Members
are able to search, select, view and print research briefs directly from the
subscription program database at no additional charge.
 
  The Company believes that the research service of its subscription programs
builds its proprietary databases, serves as an excellent marketing tool for
attracting new members and encourages members to view the Company as a
reliable and effective resource for primary research.
 
  The following table sets forth sample report topics of customized research
briefs undertaken by the Company in the recent past:
 
 Sales Executive Council
 
  . Competitive Intelligence Units
  . Recruiting Top Sales Talent
  . Branding in Commodity Industries
  . Developing Electronic Commerce Channels
  . Team-Based Selling
 
 Working Council For Chief Information Officers
 
  . Offshore Contracting: Accessing Indian and Irish Labor Markets
  . Customer-Centric IT Strategy in the Express Shipping Industry
  . SAP Implementation Contracting
  . The Role of the Project Office: Embedding Project Management Discipline
  . IT Recruiting: Channels and Strategies
 
 Corporate Strategy Board
 
  . Best Practices in M&A Execution
  . Business Strategies for Entering China: Case Studies
  . Structure of the Corporate Development Function
  . The Balanced Scorecard
  . Role of the CEO in the Strategic Planning Process
 
 Corporate Leadership Council
 
  . Developing a Corporate University or Learning Center
  . Flexible Benefits Plans at United Kingdom-Based Companies
  . Customer Service Reward Programs
  . Self-Directed Work Teams in a Union Environment
  . Gainsharing Programs for Hourly Employees
 
                                      34
<PAGE>
 
 Operations Council
 
  . Retail Lockbox Outsourcing
  . Customer Service Center Standards
  . ATM Support Services
  . Automated Investment Accounting Systems
  . Practices for Handling Peak Check Volumes
 
 Insurance Advisory Board
 
  . Group Retirement Product Customer Support
  . Direct Sales of Life Insurance and Annuities
  . Auto Insurance Rating Factors
  . No-Load and Low-Load Whole Life Insurance Products
  . Group Disability Insurance Marketing
 
 Business Banking Board
 
  . Measuring Small Business and Middle Market Profitability
  . Loan Workout Department Structures
  . Corporate Sweep Accounts
  . Turnkey 401(k) Products for Small Businesses
  . Benchmarking the Commercial Credit Underwriting and Approval Process
 
 The VIP Forum
 
  . Electronic Delivery of Trust and Investment Services
  . Client Prospecting and Retention in the Affluent Market
  . Pension Fund Companies in Chile and Argentina
  . Personal Banking Programs
  . Centralized Credit Underwriting for Private Banking Departments
 
 Council On Financial Competition
 
  . Telephone Bill Payment Programs
  . Branch Site Selection Procedures in Spanish-Speaking Countries
  . Credit Card Risk-Based Pricing
  . Customer Referral Programs
  . Branding Issues Associated with Bank Mergers and Acquisitions
 
 On-Line Proprietary Databases
 
  Each subscription program maintains a proprietary database of best practices
and, in some cases, quantitative data accessible only to members of the
subscription program. The Company's growing proprietary databases are updated
continually with new corporate practices, quantitative performance data and
related information supplied by other members and derived by the Company's
researchers. All information and graphics generated in best practices research
studies and customized research briefs are included in the databases and are
available for corporate benchmarking and comparison by other members.
 
  The Company's proprietary databases currently include 261 best practices
research studies and 25,000 customized research briefs containing over 100,000
profiles of corporate practices.
 
  In 1996, the Company began to offer its members electronic access to
research content through password-protected World Wide Web sites. The Company
believes that the Internet provides a convenient means for members to
commission customized research briefs, browse and download the electronic
library of research studies and graphics, review executive education modules
and meeting schedules and communicate with the Company's staff.
 
                                      35
<PAGE>
 
Pricing
 
  Memberships in the Corporate Executive Board subscription programs are sold
as renewable one-year agreements. Agreements generally are paid in full within
three months of the start of the subscription period. At December 31, 1998,
the average price for a subscription program was approximately $27,500. The
actual price varies by size of member and by subscription program, and may be
lower for charter subscribers to new subscription programs. By spreading its
costs across a broad membership and offering a largely standardized research
product, the Company is able to charge fees that are a small fraction of the
typical engagement fees of specialized research or consulting firms.
   
  The Company offers an unconditional service guarantee to its members. At any
time, a member may demand a full refund of its subscription fee for a program.
During 1996, 1997 and 1998, members requested refunds for five, five and nine
subscriptions (out of 1,490, 1,813 and 2,272 subscriptions), respectively,
under this guarantee program.     
 
Sales and Marketing
 
  The Company markets an integrated set of services, consisting of best
practices research studies, executive education, customized research briefs
and on-line access to its proprietary databases, for a fixed fee per
subscription program. The Company believes that this marketing strategy
highlights the value to the members of the Company's range of services and
emphasizes the membership nature of the Company's business model, actively
engaging the membership and reinforcing members' commitment to the Corporate
Executive Board.
 
  At December 31, 1998, the Company's sales force consisted of 29 new business
development representatives who are responsible for selling new memberships to
assigned geographic market segments in the United States and abroad, as well
as 17 member services representatives who are responsible for servicing and
renewing existing memberships. The Company has invested extensively in the
expansion of its direct sales force in order to continue the growth of its
member base. The Corporate Executive Board sales and member services staff is
based at the Company's headquarters in Washington, D.C. The Company maintains
an additional sales and member services office in London, England.
 
  The separation of responsibility for new membership sales and membership
renewal reflects the varying difficulty and cost of the respective functions.
New business development representatives are compensated with a base salary
and variable, goal-based incentive bonuses and travel on average 60% of the
time, conducting face-to-face meetings with senior executives at prospective
member institutions. Member services representatives assume more of an in-
house coordinating role, conducting most of their responsibilities over the
telephone.
 
  Although the Company actively markets its subscription programs throughout
the year, historically over 50% of all renewals have taken place in the fourth
quarter of the year.
 
Competition
 
  The Company currently has few direct competitors, and those that do exist
generally compete only against a single subscription program. The Company
competes indirectly against other professional information services providers,
including management consulting firms, training and development companies,
non-profit think-tanks and research and database companies. The Company is not
aware of any other entity that enables corporations to study as broad a range
of the best corporate management practices for fixed annual subscription fees.
 
  The Company believes that the principal competitive factors in its market
include quality and timeliness of research and analysis, reliable delivery,
depth and quality of the membership, ability to meet changing customer needs,
superior service and affordably-priced products. The Company believes it
competes favorably with respect to each of these factors.
 
  The Advisory Board Company provides products and services to the health care
industry that are similar to the types of products and services that the
Company generally provides to corporations. The Company, The
 
                                      36
<PAGE>
 
Advisory Board Company and the Principal Selling Stockholder have entered into
the Noncompetition Agreement, which, for a five-year term, generally prohibits
the Company from competing with The Advisory Board Company with respect to
health care clients and issues and prohibits The Advisory Board Company and
the Principal Selling Stockholder from competing with the Company with respect
to non-health care clients and issues, other than products and services
relating to advertising, magazines and newspapers, and government relations
and lobbying activities. See "Certain Relationships and Transactions --
Noncompetition Agreement."
 
Employees
 
  At December 31, 1998, the Company employed approximately 411 persons. Of
these employees, approximately 391 were located at the Company's headquarters
in Washington, D.C. and 20 were located at the Company's facilities in London,
England. None of the Company's employees is represented by a collective
bargaining arrangement. The Company believes that its relations with its
employees are favorable.
 
  The Company believes strongly in a culture of meritocracy, rewarding key
contributors with opportunities for rapid professional growth and advancement
as well as competitive compensation. Training is a critical job component for
all of the Company's employees, including industry analysis, economics,
quantitative modeling, root-cause analysis and presentation skills.
 
Facilities
 
  The Company's headquarters currently are located in approximately 55,000
square feet of office space in Washington, D.C. The facility accommodates
research, marketing and sales, information technology, administration, graphic
services and operations personnel. The Company recently signed a lease for a
new headquarters facility in Washington, D.C. and plans to gradually
transition all personnel to the new facility. This new lease has an 11 year
term and provides for an initial committment of 21,000 square feet in 1998,
which space the Company occupied in October 1998, and 66,000 square feet of
expansion space in 1999, expiring on June 30, 2009. The Company believes that
its existing and planned facilities will be adequate for its current needs and
that additional facilities are available for lease to meet future needs.
 
                                      37
<PAGE>
 
                                  MANAGEMENT
 
Directors, Executive Officers and Key Employees
 
  The following table sets forth the names, ages and positions with the
Company of the persons who serve as directors, executive officers and other
key employees of the Company:
 
<TABLE>
<CAPTION>
Directors and Executive Officers  Age Position
- --------------------------------  --- --------
<S>                               <C> <C>
Harold L. Siebert................  53 Chairman of the Board of Directors
James J. McGonigle...............  35 Chief Executive Officer and Director
Michael A. D'Amato...............  45 Executive Vice President--Finance,
                                      Secretary and Director
Clay M. Whitson..................  41 Chief Financial Officer
Sally Chang......................  33 General Manager, Sales and Marketing
Derek C. M. van Bever............  41 Chief Research Officer
Jeffrey D. Zients................  32 Director
Robert C. Hall...................  67 Director Nominee
David W. Kenny...................  37 Director Nominee
Stephen G. Pagliuca..............  44 Director Nominee
<CAPTION>
Key Employees
- -------------
<S>                               <C> <C>
Paul C. Amoruso..................  33 Executive Director, Research, Information
                                      Technology and Sales Practices
Peter Freire.....................  36 Executive Director, Research, Human
                                      Resources and Finance Practices
Michael P. Kostoff...............  41 Executive Director, Research, Financial
                                      Services Practices
William B. McKinnon..............  30 Managing Director, Sales and Marketing
Thomas L. Monahan................  31 Executive Director, Research, Financial
                                      Services Practices
Matthew S. Olson.................  47 Executive Director, Research
</TABLE>
- --------
 
Directors and Executive Officers
 
  Harold L. Siebert has been the Chairman of the Board since July 1998. From
1996 through July 1998, Mr. Siebert served as Chief Executive Officer and
Chairman of Inforum Inc., a company providing marketing and planning systems
for healthcare clients, and as Executive Vice President of Medstat/Thomson, a
healthcare information company. From 1995 until 1996, Mr. Siebert served as
Bureau Chief of TennCare, the State of Tennessee's Medicaid managed care
program. From 1993 until 1995, Mr. Siebert was a consultant to
Medstat/Thomson. In 1988, Mr. Siebert founded Inforum, Inc. and served as its
President and Chief Executive Officer from 1988 through 1993. Prior to 1988,
he held various senior-level positions at HBO & Co. and Baxter International.
Mr. Siebert received his B.S. from Miami University in Oxford, Ohio.
 
  James J. McGonigle has been the Chief Executive Officer and a director of
the Company since July 1998. Mr. McGonigle is also the Chairman of the
Company's Management Operating Committee. From the Spin-Off until July 1998,
Mr. McGonigle was the General Manager of the Company, and from 1995 until the
Spin-Off, he was the General Manager of the corporate division of The Advisory
Board Company with responsibility for managing the business assumed by the
Company in the Spin-Off. From 1990 to 1995, Mr. McGonigle was a consultant in
the Financial Institutions Group at McKinsey & Company. Mr. McGonigle received
a B.A. from the Woodrow Wilson School at Princeton University, and a J.D. from
Harvard Law School.
 
  Clay M. Whitson has been the Chief Financial Officer of the Company since
November 1998. Mr. Whitson is also a member of the Company's Management
Operating Committee. From 1996 through October 1998,
 
                                      38
<PAGE>
 
Mr. Whitson served as the Chief Financial Officer and Treasurer of PMT
Services, Inc., a publicly held credit card processing company. From 1990 to
1996, Mr. Whitson served as the Chief Financial Officer of the Gemala Group, a
diversified conglomerate based in Indonesia. Prior to joining the Gemala Group
in 1990, Mr. Whitson was a director in the Mergers and Acquisitions Department
of The Chase Manhattan Bank, N.A. Mr. Whitson received a B.A. from Southern
Methodist University and an M.B.A. from the University of Virginia.
 
  Michael A. D'Amato has been a director of the Company since July 1998. Mr.
D'Amato is also a member of the Company's Management Operating Committee. From
July 1998 until the closing of the Offering, Mr. D'Amato served as the
Executive Vice President--Finance and the Secretary of the Company. From the
date of the Spin-Off until November 1998, Mr. D'Amato served as the Chief
Financial Officer of the Company. Mr. D'Amato will cease to be an officer of
the Company as of the closing of the Offering but will continue to serve as a
director. Since the Spin-Off, Mr. D'Amato also has served as the Executive
Vice President of The Advisory Board Company and the Chief Financial Officer
of DGB Enterprises, Inc., a company wholly-owned by the Principal Selling
Stockholder, and from 1996 until July 1998, he was the Chief Financial Officer
of The Advisory Board Company. From 1995 to 1996, Mr. D'Amato served as the
Special Advisor to the Chairman of The Advisory Board Company. From 1982 until
1995, Mr. D'Amato was a partner with Bain and Company. Mr. D'Amato received a
B.S. from Massachusetts Institute of Technology and an M.B.A. from Harvard
University. Mr. D'Amato also serves on the Board of Directors of Wesley Jessen
Visioncare, Inc., a publicly held contact lens company.
 
  Sally Chang has been the General Manager, Sales and Marketing, of the
Company since June 1998. Ms. Chang is also a member of the Company's
Management Operating Committee. From 1992 until joining the Company, she
served in various management capacities with The Advisory Board Company,
including as General Manager, Health Care Member Services; General Manager,
Health Care Research; and an Executive Director, Research. Prior to 1992, Ms.
Chang worked in the corporate planning department of Fuji Xerox in Tokyo, as a
general management consultant with Touche Ross, and in the merger and
acquisitions group of Drexel Burnham Lambert. Ms. Chang received an A.B. from
Harvard University, an M.A. from the University of Pennsylvania and an M.B.A.
from the Wharton School of Business at the University of Pennsylvania.
 
  Derek C. M. van Bever has been the Chief Research Officer of the Company
since the Spin-Off. Mr. van Bever is also a member of the Company's Management
Operating Committee. From 1995 through the date of the Spin-Off, he served as
the Chief Research Officer of the business assumed by the Company in the Spin-
Off. Prior to that, he served in various management capacities with The
Advisory Board Company, which he joined in 1981. Mr. van Bever received a B.A.
and an M.A. from the University of Delaware and an M.B.A. from Harvard
University.
 
  Jeffrey D. Zients has been a director of the Company since July 1998. From
the Spin-Off until July 1998, Mr. Zients was the Executive Vice President of
the Company and Mr. McGonigle reported to him until July 1998. He also has
served as the Chief Operating Officer of DGB Enterprises, Inc. since the Spin-
Off. From 1992, Mr. Zients held various positions with The Advisory Board
Company, most recently serving as its Chief Operating Officer from 1996 until
July 1998 and Chief Executive Officer since July 1998. Prior to 1992,
Mr. Zients was employed at Mercer Management Consulting and Bain and Company.
Mr. Zients received a B.S. from Duke University.
 
  Robert C. Hall has been named to become a director of the Company as of the
closing date of the Offering. From 1995 to January 1999, Mr. Hall served as
the Vice President of The Thomson Corporation, a publicly held information
publishing company. From 1990 to 1995, Mr. Hall was the Chief Executive
Officer of Thomson Information and Publishing Group, a division of The Thomson
Corporation involved in professional information and publishing. From 1985 to
1990, Mr. Hall was the President of Thomson Financial Services Group, another
publishing division of The Thomson Corporation. Mr. Hall serves on the Board
of Directors of Advanta Corporation, a publicly held financial services
company, and Advanta Partners Company, a venture capital firm. Mr. Hall
received a B.S. from Iowa State University.
 
  David W. Kenny has been named to become a director of the Company as of the
closing of the Offering. Since 1997, Mr. Kenny has been the Chief Executive
Officer of Bronner Slosberg Humphrey, a customer relationship and interactive
marketing company. From 1987 to 1997, Mr. Kenny was a Vice-President at Bain
 
                                      39
<PAGE>
 
and Company, a management consulting firm. Mr. Kenny serves on the Board of
Directors of the Harvard Business School Publishing Corporation, a publishing
company. Mr. Kenny received a B.S. from General Motors Institute and an M.B.A.
from Harvard University.
 
  Stephen G. Pagliuca has been named to become a director of the Company as of
the closing date of the Offering. Mr. Pagliuca is Managing Director of Bain
Capital, Inc., a private equity investment firm, which he joined in 1989. From
1982 to 1989, Mr. Pagliuca was a partner with Bain and Company, a management
consulting firm. Mr. Pagliuca serves on the Board of Directors of Wesley
Jessen Visioncare, Inc., a publicly held contact lens company, Coram
Healthcare, a publicly held provider of health care therapies, Dade Behring
Inc., a supplier of in vitro diagnostics products and services, and the
Gartner Group, a publicly held information publishing company. Mr. Pagliuca
received a B.A. from Duke University and an M.B.A. from Harvard University.
 
Key Employees
 
  Paul C. Amoruso has been an Executive Director, Research, of the Company
since the Spin-Off, focusing on the information technology and sales
practices. Mr. Amoruso is also a member of the Company's Management Operating
Committee. Prior to the Spin-Off, Mr. Amoruso worked in various capacities
with The Advisory Board Company, which he joined in 1994. From 1993 to 1994,
he was owner and President of Daedalus Partners, a consulting firm and broker-
dealer serving early-stage corporations. Mr. Amoruso received a B.A. from
Wesleyan University and an M.B.A. from the Wharton School of Business at the
University of Pennsylvania.
 
  Peter Freire has been an Executive Director, Research, of the Company since
the Spin-Off, focusing on the human resources and finance practices. Mr.
Freire is also a member of the Company's Management Operating Committee. Prior
to the Spin-Off, Mr. Freire served in similar capacities with The Advisory
Board Company, which he joined in 1991. Prior to joining The Advisory Board
Company, he served as a consultant for Bain and Company and as a corporate
banking officer for the Bank of America. Mr. Freire received a B.A. from the
London School of Economics and an M.B.A. from Harvard University.
 
  Michael P. Kostoff has been an Executive Director, Research, of the Company
since the Spin-Off, focusing on the financial services practice. Mr. Kostoff
is also a member of the Company's Management Operating Committee. Prior to the
Spin-Off, Mr. Kostoff served in similar capacities with The Advisory Board
Company, which he joined in 1989. Mr. Kostoff received a B.S. from the United
States Military Academy and an M.P.A. from Harvard University.
 
  William B. McKinnon has been a Managing Director, Sales and Marketing, of
the Company since the Spin-Off, focusing on the financial services practice.
Prior to the Spin-Off, Mr. McKinnon served in similar capacities with The
Advisory Board Company, which he joined in 1990. Mr. McKinnon received a B.A.
from Duke University.
 
  Thomas L. Monahan has been an Executive Director, Research, of the Company
since November 1998, focusing on the financial services practice. From the
Spin-Off until November 1998, Mr. Monahan served as the Managing Director,
Research of the Company. Prior to the Spin-Off, Mr. Monahan served in similar
capacities with The Advisory Board Company, which he joined in January 1996.
From 1994 to December 1995, he served as a senior consultant for the Deloitte
& Touche Consulting Group. From 1990 to 1994, Mr. Monahan served as a Director
at the Committee for Economic Development. He also previously served as a
staff consultant at Andersen Consulting. Mr. Monahan received a B.A. from
Harvard University and an M.B.A. from New York University.
 
  Matthew S. Olson has been an Executive Director, Research, of the Company
since the Spin-Off. Prior to the Spin-Off, Mr. Olson served in similar
capacities with The Advisory Board Company, which he joined in 1982. Prior to
joining The Advisory Board Company, he served as an economist for the Overseas
Private Investment Corporation. Mr. Olson received a B.A. and an M.A. from the
University of Minnesota and an M.A. from The Johns Hopkins University.
 
                                      40
<PAGE>
 
Management Operating Committee
 
  The Company's Management Operating Committee consists of members of the
Company's senior management. This committee meets approximately every two
weeks and establishes the guidelines for, and manages, the general operations
of the Company. The Company's Management Operating Committee is not a
Committee of the Board of Directors of the Company.
 
                               ----------------
 
  All directors are elected annually and serve until the next annual meeting
of stockholders or until the election and qualification of their successors.
As of the closing of the Offering, the number of directors of the Company has
been set at eight. As of the closing of the Offering, however, the Company
will have seven directors. The Board of Directors of the Company intends to
elect an additional director soon after the Offering to fill the vacancy on
the Board of Directors. The Board of Directors elects the Company's executive
officers and such officers serve at the discretion of the Board. Except for
Sally Chang and Paul C. Amoruso who are married, there are no family
relationships among the directors, executive officers and other key employees
of the Company.
 
Committees of the Board of Directors
 
 Audit Committee
 
  After the closing of the Offering, the Board of Directors will establish an
audit committee (the "Audit Committee"), a majority of the members of which
will be non-management directors. The Audit Committee, among other things,
will make recommendations to the Board of Directors concerning the engagement
of independent public accountants; monitor and review the quality and
activities of the Company's internal audit function and those of its
independent accountants; and monitor the adequacy of the Company's operating
and internal controls as reported by management and the independent or
internal auditors.
 
 Compensation Committee
 
  After the closing of the Offering, the Board of Directors will establish a
compensation committee (the "Compensation Committee"). The Compensation
Committee, among other things, will review salaries, benefits and other
compensation, including stock-based compensation under the Incentive Plan, the
1999 Plan and the Directors Plan, of directors, officers, and other key
employees of the Company and will make recommendations to the Board of
Directors.
 
Director Compensation
 
  Directors' compensation is set from time to time by the Board of Directors
or, to the extent authorized by the Board, by the Compensation Committee,
under the Directors Plan and such other arrangements as the Compensation
Committee determines to be appropriate. The Board of Directors has determined
that initially each director who is not an employee of the Company will, upon
election as a non-employee director, receive a one-time grant of options to
purchase 36,120 shares of Common Stock. Non-employee directors will also
receive an annual grant of options to purchase 5,000 shares of Common Stock
and will be paid an annual retainer in the amount of $20,000. Pursuant to the
terms of the Directors Plan, the Board of Directors or the Compensation
Committee may provide for stock options and/or stock grants to be awarded to
directors and has the discretion to establish the terms, provisions and
conditions of such awards, except that options may not be granted with an
exercise price below the Market Value of the Common Stock (defined in the
Directors Plan generally as the reported closing sale price of the Common
Stock) at the time such options are granted (which in the case of options
granted on the date of the closing of the Offering will be deemed to equal the
initial price to the public). As of the closing of the Offering,
180,600 shares will be subject to options previously granted under the
Directors Plan. As part of this grant, each of Messrs. D'Amato, Hall, Kenny,
Pagliuca and Zients has received options to purchase 36,120 shares of Common
Stock at a purchase price of $14.24 per share. Directors who are employees of
the Company do not receive any additional compensation for their service as
directors. The Company will reimburse each director for his or her reasonable
out-of-pocket expenses for attending Board of Directors meetings.
 
                                      41
<PAGE>
 
Executive Compensation
 
  The following table presents certain information concerning compensation
earned for services rendered to the Company for the fiscal years ended
December 31, 1997 and 1998 by certain executive officers whose annual salary
and bonus during fiscal year 1998 exceeded $100,000 (the "Named Officers"):
 
                          Summary Compensation Table
 
<TABLE>   
<CAPTION>
                                                            Long-Term
                                    Annual Compensation    Compensation
                              ---- ---------------------   ------------
                                                            Number of      All Other
Name and Principal Positions  Year Salary(1) Bonus(1)(2)     Options    Compensation(3)
- ----------------------------  ---- --------- -----------   ------------ ---------------
<S>                           <C>  <C>       <C>           <C>          <C>
James J. McGonigle(4)....     1998 $413,849   $100,000(5)        --             --
 Chief Executive Officer      1997  400,000     19,254       490,200            --
Derek C. M. van Bever....     1998  394,231    100,000(5)        --        $850,000
 Chief Research Officer       1997  375,004        --        180,600        860,000
Michael A. D'Amato(6)....     1998  268,000        --            --             --
 Executive Vice President
  -- Finance                  1997  136,000        --        481,600            --
Sally Chang(7)...........     1998  175,961    100,000(5)    240,800            --
 General Manager, Sales
  and Marketing
Clay M. Whitson(8).......     1998   31,730    100,000(9)    172,000            --
 Chief Financial Officer
</TABLE>    
- -------
(1) Salary and bonus for fiscal year 1997 consists of amounts paid by The
    Advisory Board Company for services performed from January 1, 1997 through
    the date of the Spin-Off and, except as noted otherwise, amounts paid by
    the Company for services performed from the date of the Spin-Off through
    December 31, 1997.
   
(2) The Company generally has not paid bonuses to its executive officers.
    However, the Company from time to time has paid discretionary bonuses
    under certain special circumstances. Performance bonuses are pro-rated
    over the related employment period.     
(3) Consists of $860,000 and $850,000 paid to Mr. van Bever during fiscal
    years 1997 and 1998, respectively, in connection with the repurchase of
    certain options of The Advisory Board Company prior to the time of the
    Spin-Off.
(4) Mr. McGonigle was named the Chief Executive Officer of the Company in
    July 1998. Prior to July 1998, the Company did not have a Chief Executive
    Officer, although the Prinicipal Selling Stockholder held the position of
    sole director and President of the Company for which he was not paid any
    salary or bonus.
(5) Consists of a special bonus of $40,000 in cash payable by the Company and
    $60,000 in shares of Common Stock (based on the initial price offered to
    the public) owned by the Principal Selling Stockholder as of the date of
    the Offering.
(6) With respect to the 1997 fiscal year, reported compensation represents
    payments by The Advisory Board Company prior to the Spin-Off and, after
    the Spin-Off, by DGB Enterprises, Inc., which amounts were allocated to
    the Company in accordance with accounting rules prescribed for "carve-out"
    financial statements. With respect to the 1998 fiscal year, reported
    compensation represents payments by DGB Enterprises, Inc., which amounts
    were allocated to the Company. In November 1998, Mr. D'Amato resigned as
    the Chief Financial Officer of the Company, and as of the closing of the
    Offering, he will cease to serve as the Executive Vice President--Finance
    and Secretary of the Company. Mr. D'Amato will continue to serve as a
    director of the Company after the Offering.
(7) Ms. Chang joined the Company as General Manager, Sales and Marketing, in
    June 1998.
(8) Mr. Whitson joined the Company as Chief Financial Officer in November
    1998.
(9) Reflects a signing bonus of $100,000 paid to Mr. Whitson upon the
    commencement of his employment with the Company.
 
                                      42
<PAGE>
 
  The following table sets forth certain information concerning grants of
stock options to each of the Company's Named Officers during the fiscal year
ended December 31, 1998:
 
                    Stock Option Grants in 1998 Fiscal Year
<TABLE>
<CAPTION>
                                                                                        Potential Realizable
                                                                                          Value at Assumed
                                                                                           Annual Rates of
                                                                                             Stock Price
                                                                                            Appreciation
                                              Individual Grants(1)                         for Option Term
                         -------------------------------------------------------------- ---------------------
                                        % of Total               Market
                           Number of     Options                Price on
                            Shares      Granted to   Exercise     Date
                          Underlying   Employees in    Price       of      Expiration
          Name           Option Grants Fiscal Year  (per share)  Grant        Date         5%         10%
          ----           ------------- ------------ ----------- -------- -------------- --------- -----------
<S>                      <C>           <C>          <C>         <C>      <C>            <C>       <C>
James J. McGonigle......        --          --           --         --        --              --          --
Derek C. M. van Bever...        --          --           --         --        --              --          --
Michael A. D'Amato......        --          --           --         --        --              --          --
Sally Chang.............    240,800       27.83%      $ 6.98     $ 6.98  April 30, 2004 $ 562,226 $ 1,272,677
Clay M. Whitson.........    172,000       19.88        14.24      14.24  July 31, 2003    638,981   1,402,843
</TABLE>
- --------
(1) With respect to Ms. Chang, options become exercisable 50% one year
    following the Offering, 30% two years following the Offering and 20% three
    years following the Offering. With respect to Mr. Whitson, one-third of
    the options become exercisable each year beginning one year following the
    Offering.
 
  The following table sets forth certain information concerning stock options
held by each of the Company's Named Officers during the fiscal year ended
December 31, 1998:
 
                Aggregated Option Exercises in 1998 Fiscal Year
                          and Year-End Option Values
 
<TABLE>
<CAPTION>
                                                     Number of Securities              Value of Unexercised
                                                    Underlying Unexercised             In-the-Money Options
                                                  Options at Fiscal Year-End           at Fiscal Year-End(1)
                         Shares Acquired  Value   -------------------------------    -------------------------
          Name             On Exercise   Realized Exercisable     Unexercisable      Exercisable Unexercisable
          ----           --------------- -------- ------------    ---------------    ----------- -------------
<S>                      <C>             <C>      <C>             <C>                <C>         <C>
James J. McGonigle(2)...       --         $ --                --             490,200    $ --      $6,840,000
Derek C. M. van Bever...       --           --                --             180,600      --       2,205,000
Michael A.
 D'Amato(2)(3)..........       --           --                --             481,600      --       6,359,028
Sally Chang.............       --           --                --             240,800      --       1,748,208
Clay M. Whitson.........       --           --                --             172,000      --             --
</TABLE>
- --------
(1) Based upon a Fiscal Year-End value estimated at $14.24 per share.
(2) Messrs. McGonigle's and D'Amato's stock option agreements with the Company
    each provide that (A) upon the date, if ever, that the number of shares of
    Common Stock outstanding on a fully diluted basis first equals or exceeds
    18,920,000 shares, the number of shares of Common Stock subject to his
    options shall be increased by 10% of the sum of the number of shares that
    (i) remain subject to his options, and (ii) have been issued under the
    options and continue to be held by him, and (B) upon the date, if ever,
    that the number of shares of Common Stock outstanding on a fully diluted
    basis first equals or exceeds 20,640,000 shares, the number of shares of
    Common Stock subject to his options shall be increased by 10% of the sum
    of the number of shares that (i) remain subject to his options, and
    (ii) have been issued under the options and continue to be held by him.
    The exercise price per each additional share on each such date shall equal
    the fair market value of a share of Common Stock on each such date.
(3) Mr. D'Amato's options with respect to 168,560 shares will be exercised
    immediately prior to the date of this Prospectus and such shares will be
    sold as part of the Offering. See "Principal and Selling Stockholders."
 
                                      43
<PAGE>
 
Employment Agreements
 
  Mr. McGonigle is employed by the Company pursuant to the terms of an
employment agreement which continues in effect until Mr. McGonigle's
termination or separation from the Company. Under the terms of the employment
agreement, Mr. McGonigle receives an annual salary of $440,000, which is
subject to periodic increases in the Company's sole discretion. The employment
agreement requires Mr. McGonigle to devote his efforts and abilities to the
Company on a full-time basis and provides that Mr. McGonigle, in addition to
salary, is entitled to certain fringe benefits, including participation in the
Company's 401(k) plan, the reimbursement of business-related expenses,
disability insurance coverage and reimbursement of fees and expenses incurred
in connection with participation in community and business related
organizations. The employment agreement also provides that Mr. McGonigle will
receive an amount equal to 125% of one year's base salary and that all the
options granted to him will vest and become exercisable immediately if he is
terminated without cause. Cause is defined as the commission of a material act
of fraud, theft or dishonesty against the Company; conviction for any felony;
or willful non-performance of material duties which is not cured within sixty
days after receipt of written notice.
 
  Contemporaneously with the execution of his employment agreement, Mr.
McGonigle executed a noncompetition agreement with the Company pursuant to
which Mr. McGonigle, among other things, agreed not to compete with the
Company for a period of up to three years after his termination of employment,
if he voluntarily resigns or is terminated by the Company for cause. In
addition, if Mr. McGonigle is terminated by the Company without cause, (i) Mr.
McGonigle has agreed not to compete with the Company for one year and (ii) the
Company may require Mr. McGonigle not to compete with the Company for up to
two additional years if the Company agrees to pay Mr. McGonigle 125% of his
base salary at the time of termination for each additional one-year period of
noncompetition. Mr. McGonigle also agreed as part of his noncompetition
agreement with the Company not to disclose any of the Company's confidential
or proprietary information during the course of his employment or upon
termination of his employment for any reason and not to solicit employees of
the Company to leave for a period of three years after the termination of his
employment with the Company for any reason.
 
  Mr. Siebert serves as the Chairman of the Board of Directors of the Company
pursuant to the terms of an employment agreement which continues in effect
until Mr. Siebert's termination or separation from the Company. Under the
terms of the employment agreement, Mr. Siebert receives an annual salary of
$25,000 and such other compensation as Mr. Siebert and the Company shall
mutually agree (including but not limited to payments to cover reasonable
living expenses). The employment agreement provides that Mr. Siebert, in
addition to salary, is entitled to certain fringe benefits, including
participation in the Company's 401(k) plan and the reimbursement of business-
related expenses. In addition, under the employment agreement, Mr. Siebert was
granted options to purchase 172,000 shares of Common Stock at a purchase price
of $6.98 per share and, as of the pricing of the Offering, he will be granted
options to purchase 172,000 shares of Common Stock at the initial price
offered to the public. Mr. Siebert will also receive on an annual basis
options to purchase 10,000 shares of Common Stock, at such time as the Company
and Mr. Siebert shall agree, at a purchase price per share equal to the then
prevailing fair market value of such shares. The employment agreement also
provides that Mr. Siebert will receive $250,000 if he is terminated without
cause within one year after the Offering. Cause is defined as the commission
of an act of fraud, theft or dishonesty against the Company; arrest or
conviction for any felony; arrest or conviction for any misdemeanor involving
moral turpitude which might, in the Company's opinion, cause embarrassment to
the Company; misconduct; substance abuse; insubordination; or violation of
Company policy; willful or repeated non-performance or substandard performance
of duties; or violation of any District of Columbia, state or federal laws,
rules or regulations in connection with or during performance of work.
 
  Contemporaneously with the execution of his employment agreement, Mr.
Siebert executed a noncompetition agreement with the Company pursuant to which
Mr. Siebert, among other things, agreed not to compete with the Company for a
period of three years after his termination of employment if he voluntarily
resigns or is terminated by the Company for cause. In addition, if Mr. Siebert
is terminated by the Company without cause, the Company may require that Mr.
Siebert not compete with the Company for a period up to two years if the
Company agrees to pay Mr. Siebert 125% of his base salary at the time of his
termination for each one-year period of noncompetition. Mr. Siebert also
agreed as part of his noncompetition agreement with the
 
                                      44
<PAGE>
 
Company not to disclose any of the Company's confidential or proprietary
information during the course of his employment or upon termination of his
employment for any reason, and not to solicit employees of the Company to
leave for a period of three years after the termination of his employment with
the Company for any reason.
 
  Mr. Whitson is employed by the Company pursuant to the terms of an
employment agreement which continues in effect until Mr. Whitson's termination
or separation from the Company. Under the terms of the employment agreement,
Mr. Whitson receives an annual salary of $250,000, which is subject to
periodic increases in the Company's sole discretion, and was given a one-time
signing bonus of $100,000 upon commencing work with the Company. The
employment agreement requires Mr. Whitson to devote his efforts and abilities
to the Company on a full-time basis and provides that Mr. Whitson, in addition
to salary, is entitled to certain fringe benefits, including participation in
the Company's 401(k) plan and the reimbursement of business-related expenses.
In addition, upon the effective date of his employment with the Company, Mr.
Whitson was granted options to purchase 172,000 shares of Common Stock at a
purchase price of $14.24 per share. The employment agreement also provides
that Mr. Whitson will receive an amount equal to one year's annual base salary
and that all the options granted to him will vest immediately and become
exercisable immediately if he is terminated without cause. Cause is defined as
the commission of an act of fraud or theft against the Company; conviction for
any felony; conviction for any misdemeanor involving moral turpitude which
might, in the Company's opinion, cause embarrassment to the Company;
significant violation of any material Company policy; willful or repeated non-
performance or substandard performance of material duties which is not cured
within 30 days after written notice; or violation of any material District of
Columbia, state or federal laws, rules or regulations in connection with or
during performance of work which, if such violation is curable, is not cured
within 30 days after notice.
 
  Contemporaneously with the execution of his employment agreement, Mr.
Whitson executed a noncompetition agreement with the Company pursuant to which
Mr. Whitson, among other things, agreed not to compete with the Company for a
period of one year after termination of employment, or for three years after
the termination of employment if he voluntarily resigns or is terminated by
the Company for cause. In addition, if Mr. Whitson is terminated by the
Company without cause or if he resigns with good reason, the Company may
require that Mr. Whitson not compete with the Company for an additional period
of up to two years if the Company agrees to pay Mr. Whitson 100% of his base
salary at the time of his termination for each one-year period of
noncompetition. Mr. Whitson also agreed as part of his noncompetition
agreement with the Company not to disclose any of the Company's confidential
or proprietary information during the course of his employment or upon
termination of his employment for any reason and not to solicit employees of
the Company to leave for a period of three years after the termination of his
employment with the Company for any reason.
 
  Messrs. Zients and D'Amato remain subject to noncompetition agreements that
they have executed with the Company, under which they have agreed not to
compete with the Company for a period of two years after their respective
resignations from the Company. As part of these noncompetition agreements with
the Company, Messrs. Zients and D'Amato also agreed not to disclose any of the
Company's confidential or proprietary information upon termination of their
employment for any reason and not to solicit employees of the Company to leave
for a period of three years after the termination of their employment with the
Company for any reason. These noncompetition agreements were executed at the
time of the Spin-off. The consideration for Messrs. Zients' and D'Amato's
execution of these agreements was their employment by the Company. The Company
does not believe that there is any significant risk that these agreements will
not be enforceable. Messrs. Zients and D'Amato are currently employees of The
Advisory Board Company, with which the Company has a noncompetition agreement.
See "Certain Relationships and Transactions--Noncompetition Agreement." If
Mr. Zients and Mr. D'Amato ceased to be employed by The Advisory Board Company
and their noncompetition agreements with the Company were deemed to be
unenforceable in any material respect, the Company believes that the cost of
recreating its research data base and the difficulty of hiring a large team of
qualified professionals would present significant barriers to the ability of
Messrs. Zients and D'Amato to compete effectively with the Company for at
least several years.
 
  All officers and key employees have executed noncompetition agreements
containing terms substantially similar to that executed by Mr. Siebert. There
are no other employment agreements in effect with respect to any directors,
officers or employees of the Company.
 
                                      45
<PAGE>
 
Stock Plans and Agreements
 
 The Corporate Executive Board Company Stock-Based Incentive Compensation Plan
 
  In connection with the Spin-Off, on October 31, 1997, the Board of Directors
adopted and the Principal Selling Stockholder approved the Company's Incentive
Plan. The Incentive Plan is designed to provide only for the grant of stock
options ("Incentive Plan Options") that do not qualify as incentive stock
options under Section 422 of the Code.
 
  As of the closing of the Offering, approximately 4,654,320 shares will have
been issued under or will be subject to Incentive Plan Options granted before
the closing of the Offering.
 
  Generally, Incentive Plan Options become exercisable 50% one year following
the Offering, 30% two years following the Offering and 20% three years
following the Offering and expire as of April 30, 2003. Options granted to
certain former executives and directors of the Company to purchase in the
aggregate 1,109,400 shares of Common Stock have expiration dates beyond April
30, 2003, extending to March 31, 2009. In connection with the Offering, the
Board amended the Incentive Plan to reduce the total number of shares
available for issuance under the Incentive Plan to 5,504,000 shares, and to
adopt certain technical amendments relating to the Company becoming a publicly
traded entity. The Principal Selling Stockholder and the Bradley Trust
approved the amendment and restatement of the Incentive Plan prior to the
Offering. The number of shares subject to outstanding Incentive Plan Options
or reserved for issuance under the Incentive Plan is subject to anti-dilution
provisions for reorganizations, recapitalizations, stock splits, reverse stock
splits, stock dividends and similar events. After granting Incentive Plan
Options with respect to shares available for issuance under the Incentive
Plan, the Board of Directors does not intend to make any additional grants
under the Incentive Plan.
 
  The purpose of the Incentive Plan is to provide participants with an
increased economic and proprietary interest in the Company in order to
encourage those participants to contribute to the success and progress of the
Company. The Incentive Plan is administered by the Compensation Committee of
the Board of Directors or by the Board of Directors itself (the
"Administrator"), which may in its sole discretion establish the terms,
provisions and conditions upon which Incentive Plan Options are granted
(including, but not limited to, exercise price, exercisability, vesting and
termination). Incentive Plan Options may only be granted to employees of the
Company who are members of a select group of management or other key employees
of the Company that the Administrator may from time to time designate for
participation in the plan. The Administrator may permit the Common Stock
purchased upon the exercise of any Incentive Plan Options, on an individual
basis, to be paid for by cash or any other alternative means including the
acceptance of a promissory note secured by the number of shares of Common
Stock then issuable upon exercise of the Incentive Plan Options. Unless
otherwise provided, Incentive Plan Options are nontransferable by the
optionholder other than by will or the laws of descent and distribution, and
are exercisable only by the optionholder during his or her lifetime. No
Incentive Plan Options shall have a term extending beyond May 1, 2009.
 
 1999 Stock Option Plan
 
  In February 1999, the Board of Directors adopted and the Principal Selling
Stockholder and the Bradley Trust approved the Company's 1999 Plan. The
purpose of the 1999 Plan is to provide participants with an increased economic
and proprietary interest in the Company in order to encourage those
participants to contribute to the success and progress of the Company. The
1999 Plan is designed to provide for the grant of stock options ("Options")
that qualify as incentive stock options under Section 422 of the Code as well
as Options that do not qualify as incentive stock options under Section 422 of
the Code. Options may only be granted to the Company's or its subsidiaries'
officers, independent contractors, employees and prospective employees.
 
  The aggregate number of shares of Common Stock issued pursuant to all
Options granted under the 1999 Plan may not exceed 1,892,000 shares of the
Company's Common Stock, except that such number shall be increased by the
number of shares of Common Stock, if any, subject to Incentive Plan Options
that are cancelled, expire or terminate or that otherwise are available for
issuance but for any other reason are not issued under the
 
                                      46
<PAGE>
 
Incentive Plan (the maximum number of shares available for issuance under the
Incentive Plan is 5,504,000). In addition, the aggregate number of shares of
Common Stock subject to Options granted pursuant to the 1999 Plan during any
calendar year to any one participant may not exceed 430,000 shares. The
aggregate number of shares of Common Stock issued pursuant to the 1999 Plan at
any time may equal only the number of shares of Common Stock issued upon the
exercise of Options and not (i) returned to the Company upon cancellation,
expiration or forfeiture of an award or (ii) delivered (either actually or by
attestation) in payment or satisfaction of the purchase price or tax
obligation with respect to an Option. All references in the 1999 Plan and in
outstanding Options to the number and type of shares or other securities
subject thereto are subject to anti-dilution provisions for reorganizations,
reclassifications, dividends (other than regular, quarterly cash dividends),
or other distributions, stock splits, reverse stock splits, spin-offs or
similar transactions, or if substantially all of the property and assets of
the Company are sold, unless the terms of the transaction provide otherwise.
 
  As of the Closing of the Offering, 693,000 shares of Common Stock will be
subject to Options granted under the 1999 Plan, which will be granted as of
the Offering at the initial price offered to the public.
 
  The 1999 Plan is administered by the Administrator, which in its discretion
shall establish the terms, provisions and conditions of Options (including,
but not limited to, exercise price, exercisability, vesting and termination),
except that the Administrator may not grant Options with an exercise price
below the stock's fair market value on the date the Options are granted unless
such Options are granted in substitution of options granted by a new
employee's previous employer or the participant pays or foregoes compensation
in the amount of any discount. In the case of the grant of Options intended to
qualify as incentive stock options under Section 422 of the Code, the
Administrator may not grant Options with an exercise price of less than 110%
of the stock's fair market value on the date the Options are granted if the
participant owns stock of the Company representing more than 10% of the
combined voting power of all classes of stock of the Company. Unless the
Administrator provides otherwise, Options granted under the 1999 Plan
generally expire within ten years of the date of grant. Options granted under
the 1999 Plan that are intended to qualify as incentive plan options under
Section 422 of the Code, however, must expire within ten years of the date of
grant, unless such options are granted to a participant who owns more than 10%
of the combined voting power of all classes of stock of the Company, in which
case such Options must expire within five years of the date of grant. Unless
the Administrator provides otherwise, Options granted under the 1999 Plan
become exercisable 25% per year beginning one year after the date of grant.
The Administrator may provide that the shares of stock issued upon exercise of
an Option will be subject to additional conditions or agreements as the
Administrator in its discretion may specify before the exercise of the Option,
including deferrals on issuance of shares, conditions on vesting or the
transferability of Options, and forfeiture or repurchase provisions. The
Administrator may also provide for the deferred delivery of shares of Common
Stock upon the exercise of Options, with such deferral generally evidenced by
an unfunded and unsecured obligation of the Company referred to as a "Stock
Unit." A Stock Unit is a bookkeeping entry representing an amount equivalent
to the fair market value of one share of Common Stock. Settlement of Stock
Units upon expiration of the deferral period shall be made in Common Stock or
otherwise as determined by the Administrator, and the amount to be distributed
may be increased by an interest factor or by dividend equivalents. Until
settled, a Stock Unit will be subject to the anti-dilution provisions
described above.
 
  The Administrator may permit the Common Stock purchased upon the exercise of
any Options granted under the 1999 Plan, on an individual basis, to be paid
for by cash or any other alternative means. Without limiting the foregoing,
the Company may extend a loan to the optionholder to pay the exercise price
and/or any taxes due in connection with the exercise of Options. Unless
otherwise provided by the Administrator, Options granted under the 1999 Plan
are nontransferable by the optionholder other than by will or the laws of
descent and distribution, and are exercisable only by the optionholder during
his or her lifetime.
 
  The 1999 Plan provides that, unless approved by the Company's stockholders,
the 1999 Plan may not be amended to materially increase the number of shares
of Common Stock authorized for issuance. Subject to the foregoing limitation
and except as otherwise required by law, the Board of Directors may
periodically amend the 1999 Plan without further stockholder approval. Unless
earlier terminated by the Board of Directors, the 1999 Plan shall terminate on
the tenth anniversary of its effective date.
 
                                      47
<PAGE>
 
 Directors' Stock Plan
 
  On December 14, 1998, the Board of Directors adopted and the Principal
Selling Stockholder and the Bradley Trust approved the Company's Directors
Plan. The purpose of the Directors Plan is to assist the Company in
attracting, retaining and motivating qualified individuals to serve on the
Company's Board of Directors and to align their financial interests with those
of the Company's stockholders by providing for or increasing their proprietary
interest in the Company.
 
  Any person who is, or is elected to be, a member of the Company's Board of
Directors or of the board of directors of a subsidiary of the Company is
eligible for the award of stock options and/or stock grants under the
Directors Plan. The Directors Plan is administered by the Company's Board of
Directors or by the Compensation Committee to the extent the Board of
Directors so designates (the Board of Directors or such designated committee,
the "Committee"). The Directors Plan is intended to operate in a manner that
exempts grants of stock under the Directors Plan from Section 16(b) of the
Securities Exchange Act of 1934, as amended.
 
  As of the closing of the Offering, 180,600 shares of Common Stock will be
subject to options previously granted under the Directors Plan. As part of
this grant, each of Messrs. D'Amato, Hall, Kenny, Pagliuca and Zients has
received options to purchase 36,120 shares of Common Stock at a purchase price
of $14.24 per share.
 
  The maximum number of shares of the Company's Common Stock that can be
issued under the Directors Plan is 430,000. Any shares subject to a stock
option or stock grant which for any reason are not issued or are reacquired
under the stock option or stock grant are not counted against the number of
shares that can be issued under the Directors Plan. All references in the
Directors Plan and in outstanding options and stock grants to the number and
type of shares or other securities subject thereto will be subject to anti-
dilution provisions for reorganizations, reclassifications, dividends (other
than regular, quarterly cash dividends), or other distributions, stock splits,
reverse stock splits, spin-offs or similar transactions, or if substantially
all of the property and assets of the Company are sold, unless the terms of
the transaction provide otherwise.
 
  Under the Directors Plan, the Committee may provide for stock options and/or
stock grants to be awarded to directors and has the discretion to establish
the terms, provisions and conditions of such awards (including, but not
limited to, exercise price, exercisability, vesting and termination), except
that the Committee may not grant options with an exercise price below the
stock's fair market value on the date the options are granted unless the
optionee pays or foregoes compensation in the amount of any discount. The
Directors Plan allows the Committee to condition the receipt of stock options
or stock grants upon a director electing to forego any other form of
compensation, including any cash retainers if then paid by the Company. The
Committee may provide that the shares of stock issued upon exercise of an
option will be subject to additional conditions or agreements as the Committee
in its discretion may specify before the exercise of the option, including
deferrals on issuance of shares, conditions on vesting or transferability, and
forfeiture or repurchase provisions. The Committee may also provide for the
deferred delivery of Common Stock upon the exercise of Options with such
deferral generally evidenced by a Stock Unit.
 
  The maximum number of shares of Common Stock subject to stock options and
stock awards granted under the Directors Plan for any calendar year to any
person on account of his or her service as a director may not exceed 86,000
shares. Unless otherwise provided by the Committee, awards granted under the
Directors Plan are nontransferable by the director other than by will or the
laws of descent and distribution, and are exercisable only by the director
during his or her lifetime.
 
  The Directors Plan provides that, unless approved by the Company's
stockholders, the Directors Plan may not be amended to increase the number of
shares of Common Stock authorized for issuance. Subject to the foregoing
limitation and except as otherwise required by law, the Board of Directors may
periodically amend the Directors Plan without further stockholder approval.
Unless earlier terminated by the Board of Directors, the Directors Plan shall
terminate on May 1, 2009.
 
                                      48
<PAGE>
 
Indemnification Arrangements
 
  The Company's Second Amended and Restated Certificate of Incorporation (the
"Certificate of Incorporation") limits, to the maximum extent permitted by the
Delaware General Corporation Law, the personal liability of directors for
monetary damages for breach of their fiduciary duties as directors. The
Company's Amended and Restated Bylaws (the "Bylaws") provide that the Company
shall indemnify its officers, directors, employees and other agents to the
fullest extent permitted by law.
 
  At present, there is no pending litigation or proceeding involving any
director, officer, employee or agent of the Company where indemnification will
be required or permitted. The Company is not aware of any threatened
litigation or proceeding which may result in a claim for such indemnification.
 
Compensation Committee Interlocks and Insider Participation
 
  The Company does not currently have a Compensation Committee. During fiscal
year 1997, the functions of the Compensation Committee were performed by the
Board of Directors, which consisted solely of the Principal Selling
Stockholder. From the Spin-Off until July 17, 1998, the Principal Selling
Stockholder served as the sole director of the Company. On July 17, 1998, the
Principal Selling Stockholder resigned as the sole director of the Company
and, as the sole stockholder of the Company, elected Messrs. Siebert,
McGonigle, D'Amato and Zients as the directors of the Company. After the
Offering, the Principal Selling Stockholder is not expected to have any role
with the Company. The Principal Selling Stockholder is the President and
Chairman of the Board of The Advisory Board Company and DGB Enterprises, Inc.
 
                                      49
<PAGE>
 
                    CERTAIN RELATIONSHIPS AND TRANSACTIONS
 
  The following are descriptions of certain agreements between the Company and
The Advisory Board Company and between the Company and the Principal Selling
Stockholder. The Administrative Services Agreement, the Vendor Contracts
Agreement, the Member Contracts Agreement (collectively, the "Services
Agreements") and the Sublease Agreement were entered into between the Company
and The Advisory Board Company in connection with the Spin-Off. The Company
records costs associated with the Services Agreements and the Sublease
Agreement monthly as a payable to an affiliate, and expects to settle amounts
owed on a quarterly basis. The Noncompetition Agreement among the Company, The
Advisory Board Company and the Principal Selling Stockholder will be entered
into prior to the closing of the Offering.
 
 Services Agreements
 
  Administrative Services Agreement. Pursuant to the Administrative Services
Agreement, The Advisory Board Company has agreed to provide certain
administrative services to the Company. Under the Administrative Services
Agreement, services include information systems support and maintenance,
certain human resources functions, and general services such as facilities
management. The Administrative Services Agreement provides for fees for these
services based on either direct costs per certain transaction, headcount or a
fixed cost per month. The Company believes that the services provided under
the Administrative Services Agreement may be obtained from alternative sources
and that the fees pursuant to the Administrative Services Agreement
approximate the cost to internally provide or otherwise externally source such
services. The aggregate value of the services currently provided under this
agreement is less than $130,000 per month. The term of this agreement expires
on October 31, 1999. The Company expects to assume internally these functions
over the term of this agreement.
 
  Vendor Contracts Agreement. Pursuant to the Vendor Contracts Agreement, the
Company participates in certain vendor contracts entered into by The Advisory
Board Company for the provision of certain services, such as
telecommunications, travel, mailing and general office services. The Vendor
Contracts Agreement specifies that the Company will either pay the vendor
directly if costs can be segregated and billed separately, or it will
reimburse The Advisory Board Company for its reasonably allocated share of
commonly billed costs. The term of this agreement expires on October 31, 1999.
The Company expects to enter into separately negotiated vendor agreements as
soon as reasonably practical, and does not expect to incur material
incremental costs.
 
  Member Contracts Agreement. The Member Contracts Agreement was terminated on
October 31, 1998 in accordance with its terms. Under the Member Contracts
Agreement, The Advisory Board Company acted as the Company's agent to provide
administrative and accounting services on behalf of the Company in connection
with member contracts, including the processing of new member contracts, the
renewal of existing member contracts and the collection of payments relating
to member contracts. The Member Contracts Agreement provided for fees for
these services based on either direct costs per certain transaction, headcount
or a fixed cost per month.
 
 Sublease Agreement
 
  Pursuant to the Sublease Agreement, the Company currently subleases a
portion of its office space from The Advisory Board Company on terms
consistent with the original lease agreement, subject to termination by either
party at any time with at least six months written notice. The Company's share
of the leased cost was determined based upon the same per square foot rent as
the original lease. The Company has entered into its own lease for separate
property and expects it will vacate the subleased space by August 1999.
 
 Noncompetition Agreement
 
  On January 1, 1999, the Company entered into the Noncompetition Agreement
with The Advisory Board Company and the Principal Selling Stockholder. The
Noncompetition Agreement has a term of five years, and generally prohibits the
Company from selling membership based subscription services substantially
similar to those provided by the Company and The Advisory Board Company as of
the date of the Noncompetition Agreement ("Covered Services") to any company
or institution, or any division or subsidiary of any company or institution,
that is principally engaged in the health care provider business (a "Health
Care Company"). The
 
                                      50
<PAGE>
 
Company may sell its products and services to any company or institution, or
any division or subsidiary of any company or institution (a "Non-Health Care
Company"), that is not (i) a Health Care Company or (ii) a company or
institution, or a division or subsidiary of a company or institution, that is
not a Health Care Company but is principally engaged in other types of health
care business (such as pharmaceutical companies; medical supply and equipment
companies; technology, software, communications, financing and services
vendors selling predominantly to Health Care Companies; companies providing
health insurance; and managed care companies) ("Other Health Care Company").
In addition, the Company may sell its products and services to divisions and
subsidiaries of companies other than Non-Health Care Companies, if such
divisions or subsidiaries are Non-Health Care Companies. The Company may
continue to renew pre-existing subscriptions with respect to those products
and services that it has sold as of the Offering, if such products and
services do not specifically address health care provider industry issues.
 
  The Noncompetition Agreement generally prohibits The Advisory Board Company
and the Principal Selling Stockholder (including any entity controlled by the
Principal Selling Stockholder) (the "Bradley Parties") from selling Covered
Services to any Non-Health Care Companies. The Bradley Parties may sell their
products and services to any Health Care Company and to divisions and
subsidiaries of companies other than Health Care Companies, if such divisions
or subsidiaries are Health Care Companies. The Bradley Parties may continue to
renew pre-existing subscriptions with respect to those products and services
that they have sold as of the Offering, if such products and services
specifically address health care provider industry issues. In addition, the
Bradley Parties are permitted to offer and sell to any entity (i) magazines,
newspapers and news services, (ii) advertising for its publications and news
or on-line services, (iii) products and services that are specifically
addressed to and deal with advertising and promotion activities by companies
and institutions and advertising agencies, provided that such products and
services are offered only to the offices and divisions of companies,
institutions or advertising agencies that are responsible for the placement or
designing of advertisements and (iv) products and services that are
specifically addressed to and deal with government relations and lobbying
activities by companies and institutions, provided that such products and
services are offered only to the offices and divisions of companies or
institutions that are responsible for government relations and lobbying.
 
  The Bradley Parties may sell Covered Services to Other Health Care Companies
provided that they do not offer programs targeted to the same executives and
covering the same subjects as certain of the Company's current and
contemplated subscription programs and that the sales and marketing materials
associated with such services make explicit the health care industry focus of
such services. The Company may sell Covered Services to Other Health Care
Companies only if they are of a general business nature and are sold by the
Company principally to Non-Health Care Companies.
   
  Under the Noncompetition Agreement, the Bradley Parties are prohibited, at
any time during the term of the Noncompetition Agreement, from recruiting or
employing any person who is an employee of the Company at such time, or who
was an employee of the Company at any time during the 24-month period
preceding the date of such recruitment or employment, unless the chief
executive officer of the Company consents to such recruitment or employment.
Any of the Bradley Parties, however, may hire Derek C. M. van Bever, the Chief
Research Officer of the Company, at any time after January 1, 2002. The
Noncompetition Agreement also prohibits the Company, at any time during the
term of the Noncompetition Agreement, from recruiting or employing any person
who is an employee of any of the Bradley Parties at such time, or who was an
employee of any of the Bradley Parties at any time during the 24-month period
preceding the date of such recruitment or employment, unless the chief
executive officer of the relevant Bradley Party consents to such recruitment
or employment. Additionally, under the Noncompetition Agreement, each of the
Company and The Advisory Board Company is required to incorporate in the
noncompetition agreements that it enters into with its respective employees
provisions that would prohibit such employees from competing with the other
company and that impose similar restrictions on the use of confidential
information.     
 
  Under the Noncompetition Agreement, the Company has acknowledged The
Advisory Board Company's ownership of all rights, title and interest to the
name "The Advisory Board Company" and all of its derivations, including the
name "The Corporate Advisory Board Company." The Advisory Board Company,
however, has granted an exclusive, nontransferrable license for a period of
two years to the Company to use the name "The Corporate Advisory Board
Company" for the purpose of informing the general public that the Company has
 
                                      51
<PAGE>
 
changed its name from The Corporate Advisory Board Company to The Corporate
Executive Board Company. The Company, however, may use the name "The Corporate
Advisory Board Company" for recruiting purposes only with the prior written
consent of The Advisory Board Company. In addition, The Advisory Board Company
has agreed that it will not use the name "The Corporate Advisory Board
Company" or any other derivation of its name with the word "Corporate" during
the term of the Noncompetition Agreement.
 
 Registration Rights Agreement
 
  Following the closing of the Offering, the Principal Selling Stockholder
will hold approximately 5,001,760 shares of Common Stock (approximately
3,773,680 shares if the Underwriters' overallotment options are exercised in
full), less shares of Common Stock granted under the special bonus plan. See
"Certain Transactions Prior to the Offering--Stock Option Restructuring and
Repurchase and Special Bonus Plan Charges." Pursuant to a Registration Rights
Agreement between the Company and the Principal Selling Stockholder, the
Principal Selling Stockholder is entitled to certain rights with respect to
the registration of such shares of Common Stock under the Securities Act of
1933 and he has informed the Company that he may sell all or substantially all
of such shares of Common Stock in the public market within a period of
approximately five years following the Offering. For a period of five years
after the closing of the Offering, the Principal Selling Stockholder may
require the Company, at the Principal Selling Stockholder's expense, on two
separate occasions, to file a registration statement under the Securities Act
of 1933 with respect to some or all of his shares of Common Stock. The
Principal Selling Stockholder may not exercise such rights prior to the
expiration of the Lock-Up Period without the prior written consent of Salomon
Smith Barney. Under certain circumstances, the Company may, on no more than
one occasion, delay such registration for a period of not more than three
months. In addition, during such five-year period, if the Company proposes to
register its shares of capital stock under the Securities Act of 1933, subject
to certain exceptions, the Principal Selling Stockholder is entitled to notice
of the registration and to include such shares therein, provided that the
managing underwriters have the right to limit, in certain circumstances, the
number of shares of the Principal Selling Stockholder's Common Stock included
in such registration but not to less than 20% of the shares included in such
registration.
 
 Promissory Note
 
  The Company holds a promissory note in the amount of $6.5 million from the
Principal Selling Stockholder. The Principal Selling Stockholder borrowed this
amount from the Company on October 31, 1997 in order to make personal
investments unrelated to the Company. This Note bears interest at an annual
rate of 7%, payable semiannually on each May 1 and November 1. The principal
sum is due and payable on October 31, 2007. The Principal Selling Stockholder
has agreed to repay the principal of, and all accrued and unpaid interest on,
the note from the proceeds of the Offering.
 
 Cross-Indemnification Agreement
 
  On January 21, 1999, the Company and the Principal Selling Stockholder
entered into a Cross-Indemnification Agreement in connection with the Pre-
Closing Distribution and the Offering Expenses Distribution. Under this
agreement, the Company will indemnify the Principal Selling Stockholder and
the Principal Selling Stockholder will indemnify the Company with respect to
adverse tax effects resulting from the reallocation of income and expenses
between S corporation and C corporation tax years.
 
 Lease Guarantee
 
  The Company recently signed a lease for a new headquarters facility in
Washington, D.C. The initial term of this lease will expire on June 30, 2009.
The Company's obligations under this lease are guaranteed by The Advisory
Board Company. The guarantee will expire on March 31, 2002 provided that
certain conditions regarding the financial condition of the Company have been
met.
 
 Tax Reimbursement
 
  DGB Enterprises, Inc., a company wholly owned by the Principal Selling
Stockholder, has agreed to reimburse the Company for taxes under the Federal
Insurance Contributions Act incurred as a result of the exercise of options by
Messrs. D'Amato and Zients immediately prior to the Offering and in the
future; and DGB Enterprises, Inc. or the Principal Selling Stockholder will
reimburse the Company for taxes under the Federal Insurance Contributions Act
incurred as a result of the special bonus plan.
 
                                      52
<PAGE>
 
                      PRINCIPAL AND SELLING STOCKHOLDERS
 
  The following table sets forth certain information regarding the beneficial
ownership of the Common Stock as of December 31, 1998 with respect to (i) each
person known by the Company to beneficially own 5% or more of the outstanding
shares of Common Stock, including any option to purchase 5% or more of the
Common Stock, (ii) each Director and Named Officer of the Company, (iii) all
executive officers of the Company and all members of the Board of Directors as
a group and (iv) the three Selling Stockholders: David G. Bradley, Jeffrey D.
Zients and Michael A. D'Amato. Except as indicated in the footnotes to the
table, the persons named in the table have sole voting and investment power
with respect to all shares beneficially owned.
 
<TABLE>   
<CAPTION>
                                  Shares Beneficially
                                     Owned Prior To                        Shares to Be Beneficially
                                      Offering(1)                Number   Owned After Offering(1)(4)
                         --------------------------------------    of     -----------------------------
                                                     Diluted     Shares
Name                     Number(2)  Percentage(2) Percentage(3)  Offered      Number        Percent
- ----                     ---------- ------------- ------------- --------- --------------- -------------
<S>                      <C>        <C>           <C>           <C>       <C>             <C>
David G. Bradley(5)..... 12,504,400    100.00%        88.97%    7,502,640       5,001,760        37.92%
Jeffrey D. Zients(6)....  1,032,000      7.62%         7.34%      516,000         516,000         3.77%
Michael A. D'Amato(6)...    517,720      3.98%         3.68%      168,560         349,160         2.58%
Harold L. Siebert.......        --       0.00%         0.00%          --              --          0.00%
James J. McGonigle(7)...        --       0.00%         0.00%          --              --          0.00%
Clay M. Whitson.........        --       0.00%         0.00%          --              --          0.00%
Sally Chang(7)..........        --       0.00%         0.00%          --              --          0.00%
Derek C. M. van Bev-
 er(7)..................        --       0.00%         0.00%          --              --          0.00%
Robert C. Hall..........        --       0.00%         0.00%          --              --          0.00%
David W. Kenny..........        --       0.00%         0.00%          --              --          0.00%
Stephen G. Pagliuca.....        --       0.00%         0.00%          --              --          0.00%
All executive officers
 and directors as a
 group (11 persons)(7)..  1,549,720     11.03%        11.03%      684,560         865,160         6.16%
</TABLE>    
- --------
(1) The information contained in this Table (i) reflects "beneficial
    ownership" as defined in Rule 13d-3 promulgated under the Exchange Act,
    and (ii) gives effect to the Recapitalization. Other than the options held
    by Messrs. D'Amato and Zients, none of the options granted to executive
    officers will vest within 60 days after the date hereof, and are therefore
    not included.
(2) The number of shares and percentages included in these columns are
    calculated in accordance with Rule 13d-3(d) under the Exchange Act.
    Pursuant to that rule, in addition to the 12,504,400 issued and
    outstanding shares beneficially owned by Mr. Bradley, Messrs. Zients and
    D'Amato are treated as beneficially owning 1,032,000 and 517,720 shares,
    respectively, which are subject to options that are exercisable within 60
    days. For purposes of calculating the percentage of shares owned, the
    option shares attributed to Mr. Zients and Mr. D'Amato are deemed to be
    outstanding for the purpose of calculating the percentage of outstanding
    Common Stock owned by each of them, but are not deemed to be outstanding
    for the purpose of computing the percentage of Common Stock owned by any
    other person.
(3) The percentages included in this column are calculated on a diluted basis,
    assuming that the shares of Common Stock not outstanding which are subject
    to options exercisable within 60 days and held by Messrs. Zients and
    D'Amato are deemed to be outstanding for the purpose of calculating the
    percentage of outstanding Common Stock owned by Messrs. Bradley, Zients
    and D'Amato.
(4) Assumes no exercise of the Underwriters' over-allotment options. 1,228,080
    shares of Common Stock are subject to the over-allotment options. In the
    event the over-allotment options are exercised in full by the
    Underwriters, Mr. Bradley will beneficially own 3,773,680 shares of Common
    Stock, or 29% of the outstanding Common Stock, less shares of Common Stock
    granted under the special bonus plan.
(5) Includes shares held by the Bradley Trust and also shares to be granted by
    the Principal Selling Stockholder to selected employees under the special
    bonus plan.
(6) The shares to be sold by Messrs. Zients and D'Amato in the Offering will
    be issued by the Company immediately prior to the date of this Prospectus
    as a result of the exercise of options by Messrs. Zients and D'Amato.
(7) Does not include shares with an aggregate value of $60,000 based on the
    Offering Price of the Common Stock that each of Mr. McGonigle, Ms. Chang
    and Mr. van Bever are entitled to receive pursuant to the special bonus
    plan.
 
                                      53
<PAGE>
 
                         DESCRIPTION OF CAPITAL STOCK
 
General
   
  The Company's Certificate of Incorporation, upon the closing of the Offering
and giving effect to the Recapitalization, will provide that the Company is
authorized to issue 100 million shares of Common Stock, par value $.01 per
share, and five million shares of preferred stock, par value $.01 per share
(the "Preferred Stock"). Immediately prior to the closing of the Offering, the
Company will have authorized and outstanding, in addition to the shares of
Common Stock and Preferred Stock set forth above, 17,200 shares of Class A
Stock and 13,171,760 shares of Class B Stock, two classes of common stock
differing only as to voting rights. Upon the closing of the Offering, all
shares of the Class A Stock and the Class B Stock will automatically convert
into shares of Common Stock, and at such time, the Company's Certificate of
Incorporation will be amended to eliminate Class A Stock and Class B Stock as
authorized capital of the Company. Upon the closing of the Offering and giving
effect to the Recapitalization, there will be 13,188,960 shares of Common
Stock outstanding and no shares of Preferred Stock outstanding. In addition,
an aggregate of 7,826,000 shares of Common Stock will be reserved for issuance
under the Incentive Plan, the 1999 Plan and the Directors Plan, pursuant to
which options to purchase 5,527,920 shares of Common Stock will be outstanding
at the closing of the Offering.     
 
Common Stock
 
  Stockholders are entitled to one vote for each share of Common Stock held of
record on all matters on which stockholders are entitled or permitted to vote.
The Common Stock does not have cumulative voting rights in the election of
directors. As a result, holders of a majority of the shares of Common Stock
voting for the election of directors can elect all the directors standing for
election.
 
  Holders of the Common Stock are entitled to receive dividends out of funds
legally available therefor when and if declared from time to time by the Board
of Directors. See "Dividend Policy." In the event of the liquidation,
dissolution or winding up of the Company, the holders of the Common Stock will
be entitled to share ratably in all assets remaining after payment of
liabilities, subject to the rights of any then outstanding Preferred Stock.
The Common Stock has no preemptive, subscription or conversion rights and
there are no redemption or sinking fund provisions in the Company's
Certificate of Incorporation. The rights, preferences and privileges of
holders of the Common Stock are subject to, and may be adversely affected by,
the rights of holders of shares of any series of Preferred Stock that the
Company may designate and issue in the future. The issued and outstanding
shares of Common Stock are fully paid and nonassessable.
 
Preferred Stock
 
  The Board of Directors is authorized to issue the Preferred Stock in
different series and classes and to fix the dividend rights, dividend rate,
conversion rights, voting rights, rights and terms of redemption (including
sinking fund provisions), liquidation preferences and other rights and
preferences of the Preferred Stock not in conflict with the Company's
Certificate of Incorporation or Delaware law. There currently are no shares of
Preferred Stock outstanding, and the Board of Directors has no present plans
to issue any shares of Preferred Stock. The Board of Directors, without
stockholder approval, can issue shares of Preferred Stock with voting and
conversion rights that could adversely affect the voting power of holders of
the Common Stock. The issuance of shares of Preferred Stock may have the
effect of delaying, deferring or preventing a change in control of the
Company.
 
Certain Provisions of the Company's Certificate of Incorporation and Bylaws
Regarding Corporate Governance
 
  The Company's Certificate of Incorporation provides that the Board may not
adopt a "stockholders rights plan" (as defined in the Certificate of
Incorporation), commonly called a "poison pill," unless the rights plan (i) is
ratified by the affirmative vote of the holders of a majority of the shares of
Common Stock then outstanding and present in person or by proxy at the next
meeting of stockholders, (ii) by its terms expires no later than 37 months
after adoption (unless extended by the affirmative vote of the holders of a
majority of the outstanding shares of Common Stock) and (iii) permits the
rights issued thereunder to be redeemed at any time by the
 
                                      54
<PAGE>
 
affirmative vote of the holders of a majority of outstanding shares of Common
Stock. The Company has elected not to be subject to Section 203 of the
Delaware General Corporation Law, which generally prevents an "interested
stockholder" (defined generally as a person owning 15% or more of a
corporation's outstanding voting stock) from engaging in a "business
combination" (as defined) with a Delaware corporation for three years
following the date such person became an interested stockholder unless certain
conditions are satisfied. The Company's Certificate of Incorporation does not
permit stockholders to act by written consent without a meeting of
stockholders. The Certificate of Incorporation and the Bylaws provide that
special meetings of stockholders may be called by a majority of the full Board
of Directors, the Chairman of the Board or any holder or holders of at least
40% of any class of the Company's outstanding capital stock then entitled to
vote at the meeting.
 
  The Company's Bylaws provide that the number of directors will be fixed from
time to time by the stockholders or the Board of Directors. The number of
directors is currently fixed at four, but will be increased to eight prior to
the closing of the Offering.
 
Limitation on Liability and Indemnification Matters
 
  The Company's Certificate of Incorporation provides that to the fullest
extent permitted by the Delaware General Corporation Law, no director of the
Company will be liable to the Company or its stockholders for monetary damages
for breach of fiduciary duty as a director. Under the Delaware General
Corporation Law, liability of a director may not be limited (i) for any breach
of the director's duty of loyalty to the Company or its stockholders, (ii) for
acts or omissions not in good faith or that involve intentional misconduct or
a knowing violation of law, (iii) in respect of certain unlawful dividend
payments or stock redemptions or repurchases and (iv) for any transaction from
which the director derives an improper personal benefit. The effect of this
provision of the Company's Certificate of Incorporation is to eliminate the
rights of the Company and its stockholders (through stockholders' derivative
suits on behalf of the Company) to recover monetary damages against a director
for breach of the fiduciary duty of care as a director (including breaches
resulting from negligent or grossly negligent behavior), except in the
situations described in clauses (i) through (iv) above. This provision does
not limit or eliminate the rights of the Company or any stockholder to seek
non-monetary relief such as an injunction or rescission in the event of a
breach of a director's duty of care. In addition, the Company's Bylaws provide
that it shall indemnify its directors, officers, employees and agents to the
fullest extent permitted by the Delaware General Corporation Law. The Company
may purchase and maintain insurance or furnish similar protection on behalf of
any officer or director against any liability asserted against the officer or
director and incurred by the officer or director in such capacity, or arising
out of the status, as an officer or director.
 
Transfer Agent and Registrar
 
  The Transfer Agent and Registrar for the Common Stock is Chase Mellon
Shareholder Services LLC.
 
                                      55
<PAGE>
 
                        SHARES ELIGIBLE FOR FUTURE SALE
 
  Upon completion of the Offering, the Company will have outstanding
13,188,960 shares of Common Stock (assuming no exercise of the Underwriters'
over-allotment options), and 7,826,000 shares of Common Stock will be reserved
for issuance upon the exercise of outstanding stock options pursuant to the
Incentive Plan, the 1999 Plan and the Directors Plan, pursuant to which
options to purchase an aggregate of 5,527,920 shares of Common Stock will be
outstanding with a weighted average exercise price of $4.66 per share
(assuming, with respect to 693,000 of such shares to be issued at the
Offering, an exercise price of $18.00 per share, the mid-point of the initial
public offering price range). The shares of Common Stock sold in the Offering
will be freely tradable without restriction or further registration under the
Securities Act of 1933, except that any shares of Common Stock held by an
"affiliate" of the Company (an "Affiliate") within the meaning of Rule 144
under the Securities Act of 1933 will be subject to the resale limitations of
Rule 144. The remaining 5,001,760 shares outstanding upon completion of the
Offering, which, other than the shares of Common Stock granted under the
special bonus plan, will be held by the Principal Selling Stockholder
(3,773,680 shares if the Underwriters' over-allotment options are exercised in
full), are "restricted securities" as the term is defined under Rule 144 and
may not be sold publicly unless they are registered under the Securities Act
of 1933 or are sold pursuant to Rule 144 or another exemption from
registration. See "Certain Transactions Prior to the Offering--Stock Option
Restructuring and Repurchase and Special Bonus Plan Changes." In this regard,
the Principal Selling Stockholder has been granted certain registration rights
with respect to his shares of Common Stock. See "Certain Relationships and
Transactions -- Registration Rights Agreement."
 
  In general, under Rule 144 as currently in effect, a person (or persons
whose sales are aggregated) who has beneficially owned restricted securities
for at least one year, including any Affiliate of the Company, would be
entitled to sell within any three-month period a number of shares that does
not exceed the greater of (i) 1% of the then outstanding shares of Common
Stock or (ii) the reported average weekly trading volume of the Common Stock
on the automated quotation system of a registered securities association or
the consolidated transaction reporting system during the four calendar weeks
preceding such sale. Sales under Rule 144 also are subject to certain
requirements regarding the manner of sale, notice and the availability of
current public information about the Company. In addition, a person who is not
deemed to have been an Affiliate of the Company at any time during the 90 days
preceding a sale, and who holds shares that were last purchased from the
Company or an Affiliate more than two years before the date the shares are
proposed to be sold, would be entitled to sell such shares under Rule 144(k)
without regard to the requirements described above.
   
  The Company, the Selling Stockholders, the executive officers, the directors
and the employees receiving shares of Common Stock under the special bonus
plan, have agreed that they will not offer, sell, contract to sell, announce
any intention to sell, pledge or otherwise dispose of, directly or indirectly,
or file with the Commission a registration statement under the Securities Act
of 1933 relating to, any shares of Common Stock or securities or other rights
convertible into or exchangeable or exercisable for any shares of Common Stock
without the prior written consent of Salomon Smith Barney for a period of 180
days after the date of this prospectus. Such restrictions will not affect the
ability of the Company (i) to issue and sell Common Stock or make any awards
pursuant to the Incentive Plan, the 1999 Plan or the Directors Plan, (ii) to
issue shares of Common Stock pursuant to the exercise of stock options
currently outstanding or granted pursuant to the Incentive Plan, the 1999 Plan
or the Directors Plan or (iii) to issue shares of Common Stock or securities
convertible into, or exercisable or exchangeable for, shares of Common Stock
in connection with an acquisition of or merger with another corporation as
long as such securities are not registered under the Securities Act of 1933
during the Lock-Up Period. See "Underwriting."     
 
                                      56
<PAGE>
 
                                 UNDERWRITING
 
  Under the terms and subject to the conditions in the U.S. Underwriting
Agreement dated the date hereof, each of the underwriters of the U.S. Offering
named below (the "U.S. Underwriters"), for whom Salomon Smith Barney Inc.,
Donaldson, Lufkin & Jenrette Securities Corporation, Friedman, Billings,
Ramsey & Co., Inc. and Goldman, Sachs & Co. are acting as representatives (the
"Representatives"), has severally agreed to purchase, and the Selling
Stockholders have agreed to sell to each U.S. Underwriter, shares of Common
Stock which equal the number of shares set forth opposite the name of such
U.S. Underwriter below:
 
<TABLE>
<CAPTION>
   Underwriters                                                 Number of Shares
   ------------                                                 ----------------
   <S>                                                          <C>
   Salomon Smith Barney Inc....................................
   Donaldson, Lufkin & Jenrette Securities Corporation.........
   Friedman, Billings, Ramsey & Co., Inc.......................
   Goldman, Sachs & Co.........................................
                                                                   ---------
     Total.....................................................    6,549,760
                                                                   =========
                                                                         (1)
</TABLE>
- --------
(1) Includes 409,360 shares which is the maximum number of shares being
    reserved for sale to certain employees and directors of the Company, and
    their friends and family members at the initial public offering price.
 
  Under the terms and subject to the conditions contained in the International
Underwriting Agreement dated the date hereof, each of the managers of the
concurrent International Offering named below (the "Managers"), for whom
Salomon Brothers International Limited, Donaldson, Lufkin & Jenrette
International, Friedman, Billings, Ramsey International, Ltd. and Goldman
Sachs International are acting as the lead managers (the "Lead Managers"), has
severally agreed to purchase, and the Selling Stockholders have agreed to sell
to each Manager, shares of Common Stock which equal the number of shares set
forth opposite the name of such Manager below:
 
<TABLE>
<CAPTION>
   Managers                                                     Number of Shares
   --------                                                     ----------------
   <S>                                                          <C>
   Salomon Brothers International Limited......................
   Donaldson, Lufkin & Jenrette International..................
   Friedman, Billings, Ramsey International, Ltd...............
   Goldman Sachs International.................................
                                                                   ---------
     Total.....................................................    1,637,440
                                                                   =========
</TABLE>
 
  Each of the U.S. Underwriting Agreement and the International Underwriting
Agreement provides that the obligations of the U.S. Underwriters and the
Managers to pay for and accept delivery of the shares of Common Stock offered
hereby are subject to the approval of certain legal matters by counsel and to
certain other conditions. The U.S. Underwriters and the Managers are obligated
to take and pay for all the shares of Common Stock included in the respective
Offering (other than those covered by the over-allotment options described
below) if any such shares are taken.
 
  The U.S. Underwriters and the Managers initially propose to offer part of
the shares of Common Stock directly to the public at the public offering price
set forth on the cover page of this Prospectus and part to certain dealers at
a price that represents a concession not in excess of $    per share below the
public offering price. The U.S. Underwriters and the Managers may allow, and
such dealers may reallow, a concession not in excess of $    per share to
other U.S. Underwriters and Managers or to certain other dealers. After the
initial offering of the shares of Common Stock offered hereby, the public
offering price and other selling terms may be changed by the U.S. Underwriters
and the Managers.
 
                                      57
<PAGE>
 
  The Principal Selling Stockholder has granted to the Underwriters options,
exercisable for 30 days from the date of this Prospectus, to purchase up to an
aggregate of 1,228,080 additional shares of Common Stock at the price to
public set forth on the cover page of this Prospectus, less the underwriting
discounts and commissions. The Underwriters may exercise such option to
purchase additional shares of Common Stock solely for the purpose of covering
over-allotments, if any, in connection with the sale of the shares of Common
Stock offered hereby. To the extent such option is exercised, the Underwriters
will become obligated, subject to certain conditions, to purchase
approximately the same percentage of such additional shares of Common Stock as
the number of shares of Common Stock set forth opposite the U.S. Underwriters'
names in the preceding table bears to the total number of shares in such
table.
 
  The Company, the Selling Stockholders, and the U.S. Underwriters and the
Managers have agreed to indemnify each other against certain liabilities,
including liabilities under the Securities Act of 1933.
 
  The Company, the Selling Stockholders, the executive officers, the directors
and the employees receiving shares of Common Stock under the special bonus
plan have agreed that they will not offer, sell, contract to sell, announce
any intention to sell, pledge or otherwise dispose of, directly or indirectly,
or file with the Commission a registration statement under the Securities Act
of 1933 relating to any shares of Common Stock or securities or other rights
convertible into or exchangeable or exercisable for any shares of Common
Stock, without the prior written consent of Salomon Smith Barney Inc. for a
period of 180 days after the date of this Prospectus. Such restrictions will
not affect the ability of the Company (i) to issue and sell Common Stock or
make any awards pursuant to the Incentive Plan, the 1999 Plan and the
Directors Plan (ii) to issue shares of Common Stock pursuant to the exercise
of stock options currently outstanding or granted pursuant to the Incentive
Plan, the 1999 Plan or the Directors Plan, or (iii) to issue Shares of Common
Stock or securities convertible into, or exercisable or exchangeable for,
Shares of Common Stock in connection with an acquisition of or merger with
another corporation as long as such securities are not registered under the
Securities Act of 1933 during the Lock-Up Period. See "Shares Eligible for
Future Sale."
 
  The Underwriters have informed the Company and the Selling Stockholders that
they do not intend to confirm sales of shares of Common Stock for any
customer's account over which they exercise discretionary authority without
the prior written approval of the customer.
 
  Prior to the Offering, there has been no public market for the shares of
Common Stock. The initial public offering price for the shares of Common Stock
will be determined by negotiation among the Company, the Selling Stockholders
and the Representatives. Among the factors to be considered in determining the
initial public offering price will be the prevailing market conditions, the
Company's financial condition, its prospects and the prospects for the
industry in general, the management of the Company and the market prices of
securities for companies in businesses similar to that of the Company. There
can, however, be no assurance that the prices at which the shares of Common
Stock will sell in the public market after the Offering will not be lower than
the price at which the shares of Common Stock will initially be sold by the
Underwriters.
 
  The U.S. Underwriters and the Managers have entered into an Agreement
Between U.S. Underwriters and Managers pursuant to which each U.S. Underwriter
has agreed that, as part of the distribution of the 6,549,760 shares of Common
Stock offered in the U.S. Offering, (i) it is not purchasing any such shares
for the account of anyone other than a U.S. or Canadian Person (as defined
below) and (ii) it has not offered or sold, and will not offer, sell resell or
deliver, directly or indirectly, any of such shares or distribute any
prospectus relating to the U.S. Offering outside the United States or Canada
to anyone other than a U.S. or Canadian Person. In addition, each Manager has
agreed that as part of the distribution of the 1,637,440 shares of Common
Stock offered in the International Offering (i) it is not purchasing any such
shares for the account of any U.S. or Canadian Person and (ii) it has not
offered or sold, and will not offer, sell, resell or deliver, directly or
indirectly, any of such shares or distribute any prospectus relating to the
International Offering in the United States or Canada or to any U.S. or
Canadian Person. Each Manager has also agreed that it will offer to sell
shares only in compliance with all relevant requirements of any applicable
laws.
 
                                      58
<PAGE>
 
  The foregoing limitations do not apply to stabilization transactions
specified in the U.S. Underwriting Agreement, the International Underwriting
Agreement and the Agreement Between U.S. Underwriters and Managers, including:
(i) certain purchases and sales between the U.S. Underwriters and the Mangers;
(ii) certain offers, sales, resales, deliveries or distributions to or through
investment advisors or other persons exercising investment discretion; (iii)
purchases, offers or sales by a U.S. Underwriter who is also acting as a
Manager or by a Manager who is also acting as a U.S. Underwriter; and (iv)
other transactions specifically approved by the U.S. Underwriters and the Lead
Managers. As used herein, "U.S. or Canadian Person" means any resident or
national of the United States or Canada, any corporation, partnership or other
entity created or organized in or under the laws of the United States or
Canada or any estate or trust the income of which is subject to United States
or Canadian income taxation regardless of the source of its income (other than
the foreign branch of any U.S. or Canadian Person), and includes any United
States or Canadian branch of a person other than a U.S. or Canadian Person.
 
  Any offer of shares in Canada will be made only pursuant to an exemption
from the requirement to file a prospectus in the relevant province of Canada
in which such offer is made.
 
  Each Manager agrees that it (i) will not offer or sell any shares to persons
in the United Kingdom except to persons whose ordinary activities involve them
in acquiring, holding, managing or disposing of investments (whether as
principal or agent) for the purposes of their businesses or in other
circumstances which do not constitute an offer to the public in the United
Kingdom for the purposes of the Public Offers of Securities Regulation 1995
(the "Regulations"), (ii) will comply with all applicable provisions of the
Regulations and of the Financial Services Act 1986 with respect to anything
done by it in relation to the shares of Common Stock offered hereby in, from
or otherwise involving the United Kingdom and (iii) will only issue or pass on
in the United Kingdom any document received by it in connection with the issue
of these shares if that person is of a kind described in Article 11(3) of the
Financial Services Act 1986 (Investment Advertisements) (Exemptions) Order
1996 (as amended) or is a person to whom such documents may otherwise lawfully
be issued or passed on.
 
  No action has been or will be taken in any jurisdiction by the Company, the
Selling Stockholders or the Underwriters that would permit any offering to the
general public of the shares of Common Stock offered hereby in any
jurisdiction other than the United States.
 
  Purchasers of the shares of Common Stock offered hereby may be required to
pay stamp taxes and other charges in accordance with the laws and practices of
the country of purchase in addition to the offering price set forth on the
cover page hereof.
 
  Pursuant to the Agreement Between U.S. Underwriters and Managers, sales may
be made between the U.S. Underwriters and the Managers of such number of
shares of Common Stock as may be mutually agreed. The price of any shares so
sold shall be the public offering price as then in effect for shares being
sold by the U.S. Underwriters and the Managers, less all or any part of the
selling concession, unless otherwise determined by mutual agreement. To the
extent that there are sales between the U.S. Underwriters and the Managers
pursuant to the Agreement Between U.S. Underwriters and Managers, the number
of shares initially available for sale by the U.S. Underwriters and the
Managers may be more or less than the number of shares appearing on the front
cover of this Prospectus.
 
  In connection with the Offering and in compliance with applicable law, the
Underwriters may overallot (i.e., sell more Common Stock than the total amount
shown on the list of Underwriters and participations which appear above) and
may effect transactions which stabilize, maintain or otherwise affect the
market price of the Common Stock at levels above those which might otherwise
prevail in the open market. Such transactions may include placing bids for the
Common Stock or effecting purchases of the Common Stock for the purpose of
pegging, fixing or maintaining the price of Common Stock or for the purpose of
reducing a syndicate short position created in connection with the Offering. A
syndicate short position may be covered by exercise of the option described
above in lieu of or in addition to open market purchases. In addition, the
contractual arrangements among the Underwriters
 
                                      59
<PAGE>
 
include a provision whereby if the U.S. Underwriters or Lead Managers purchase
Common Stock in the open market for the account of the underwriting syndicate
and the securities purchased can be traced to a particular Underwriter, the
underwriting syndicate may require the Underwriter in question to purchase the
Common Stock in question at a cost price to the syndicate or may recover from
(or decline to pay to) the Underwriter in question the selling concession
applicable to the securities in question. The Underwriters are not required to
engage in any of these activities and any such activities, if commenced, may
be discontinued at any time.
 
  In the ordinary course of their respective businesses, certain of the U.S.
Underwriters and their affiliates have performed, and may in the future
perform, investment banking or commercial banking services for the Company. In
addition, Friedman, Billings, Ramsey & Co., Inc. will receive a financial
advisory fee of $400,000 in connection with the Offering.
 
  As part of the Offering, up to 409,360 shares of Common Stock are being
offered hereunder to certain employees and directors of the Company, and their
friends and family members, at a price equal to the initial public offering
price per share (the "Direct Offering"). The obligation of the investors to
purchase shares of Common Stock in the Direct Offering is contingent on the
purchase of shares by the Underwriters. There is no minimum number of shares
to be purchased in the Direct Offering.
 
                                      60
<PAGE>
 
            CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS
                         FOR NON-UNITED STATES HOLDERS
 
  The following is a general summary of certain United States federal income
and estate tax considerations with respect to the acquisition, ownership and
disposition of the Common Stock by a holder other than (i) a citizen or
resident of the United States; (ii) a corporation, partnership or other entity
created or organized in, or under the laws of, the United States or of any
political subdivision thereof; (iii) an estate, the income of which is subject
to United States federal income taxation regardless of its source; or (iv) a
trust if (a) a court within the United States is able to exercise primary
supervision over the administration of the trust and (b) one or more United
States persons have the authority to control all substantial decisions of the
trust (a "Non-U.S. Holder"). This summary does not address all of the United
States federal income and estate tax considerations that may be relevant to a
Non-U.S. Holder in light of its particular circumstances or to Non-U.S.
Holders that may be subject to special treatment under United States income
tax laws (such as insurance companies, tax-exempt organizations, financial
institutions, brokers, dealers in securities, and certain U.S. expatriates).
Furthermore, this summary does not discuss any aspects of state, local or non-
United States taxation. This summary is based on current provisions of the
Code, Treasury Regulations promulgated thereunder, judicial opinions,
published positions of the United States Internal Revenue Service (the "IRS"),
and all other applicable authorities, all of which are subject to change,
possibly with retroactive effect.
 
  PROSPECTIVE NON-UNITED STATES INVESTORS ARE URGED TO CONSULT THEIR TAX
ADVISORS REGARDING THE UNITED STATES FEDERAL, STATE, LOCAL, AND NON-UNITED
STATES INCOME AND OTHER TAX CONSIDERATIONS OF ACQUIRING, HOLDING AND DISPOSING
OF SHARES OF THE COMMON STOCK.
 
Dividends
 
  Dividends, if any, paid to a Non-U.S. Holder generally will be subject to
United States withholding tax at a rate of 30% (or a lower rate prescribed by
an applicable income tax treaty) of the gross amount of the dividends unless
the dividends are effectively connected with the conduct of a trade or
business within the United States by the Non-U.S. Holder (or, if certain tax
treaties apply, are attributable to a United States permanent establishment
maintained by such Non-U.S. Holder) and the Non-U.S. Holder files the
appropriate documentation with the Company. Dividends effectively connected
with a United States trade or business generally will be subject to United
States federal income tax on a net income basis, in the same manner as
generally applied to United States persons. In the case of a Non-U.S. Holder
that is a corporation, such effectively connected income may also be subject
to the branch profits tax at a rate of 30% (or such lower rate as may be
specified by an applicable income tax treaty) on the repatriation from the
United States of its "effectively connected earnings and profits," subject to
certain adjustments. Non-U.S. Holders should consult any applicable income tax
treaties which may provide for a lower rate of tax or other rules different
from those described above. A Non-U.S. Holder may be required to satisfy
certain certification requirements in order to claim treaty benefits or
otherwise claim a reduction of, or exemption from, withholding under the
foregoing rules.
 
Sale or Other Disposition of the Common Stock
 
  A Non-U.S. Holder generally will not be subject to United States federal
income tax on any gain realized upon the sale or other disposition of such
holder's shares of the Common Stock unless (i) the gain is effectively
connected with the conduct of a trade or business within the United States by
the Non-U.S. Holder (or, if certain tax treaties apply, is attributable to a
United States permanent establishment maintained by such Non-U.S. Holder);
(ii) the Non-U.S. Holder is an individual who holds shares of Common Stock as
a capital asset and is present in the United States for 183 days or more in
the taxable year of disposition and certain other requirements are met; (iii)
the Non-U.S. Holder is subject to tax pursuant to the provisions of the Code
regarding the taxation of certain U.S. expatriates; or (iv) the Company is or
has been a "United States real property holding corporation" for United States
federal income tax purposes (which the Company does not believe that it is or
will become) and the Non-U.S. Holder holds or has held, directly or
indirectly, at any time within the shorter of
 
                                      61
<PAGE>
 
the five-year period preceding such disposition or such Non-U.S. Holder's
holding period for the shares of the Common Stock, more than 5% of the Common
Stock. Gain that is effectively connected with the conduct of a trade or
business within the United States by the Non-U.S. Holder generally will be
subject to United States federal income tax on a net income basis, in the same
manner as generally applied to United States persons (and with respect to
corporate Non-U.S. Holders, the branch profits tax may also apply in certain
circumstances), but will not be subject to withholding. If an individual Non-
U.S. Holder falls under clause (ii) above, such Non-U.S. Holder generally will
be subject to tax at a rate of 30% on the gain realized, although such gain
may be offset by certain United States capital losses. Individual Non-U.S.
Holders who may fall under clause (iii) above, should consult their tax
advisors regarding the U.S. federal income tax consequences of a sale or other
disposition of the Common Stock. Non-U.S. Holders should consult any
applicable income tax treaties which may provide for a lower rate of tax or
other rules different from those described above.
 
Information Reporting and Backup Withholding
 
  The Company must report annually to the IRS and to each Non-U.S. Holder the
amount of dividends paid to, and the tax withheld with respect to, each Non-
U.S. Holder regardless of whether any tax was withheld. These reporting
requirements apply regardless of whether withholding was reduced or eliminated
by an applicable income tax treaty. Pursuant to applicable tax treaties or
other agreements, this information also may be made available to the tax
authorities in the country in which the Non-U.S. Holder resides or is
established.
 
  Under current United States Treasury Regulations, United States information
reporting requirements and backup withholding tax at a rate of 31% will
generally apply to dividends paid on the Common Stock to a Non-U.S. Holder at
an address inside the United States and to payments to a Non-U.S. Holder by a
United States office of a broker of the proceeds of a sale of the Common Stock
unless the holder certifies its Non-U.S. Holder status under penalties of
perjury or otherwise establishes an exemption. Information reporting (but not
backup withholding) generally will also apply to payments of the proceeds of
sales of the Common Stock by foreign offices of United States brokers, or
foreign brokers with certain types of relationships with the United States,
unless the broker has documentary evidence in its records that the holder is a
Non-U.S. Holder and certain other conditions are met, or the holder otherwise
establishes an exemption.
 
  The IRS has issued Treasury Regulations generally effective for payments
made after December 31, 1999 that will affect the procedures to be followed by
a Non-U.S. Holder in establishing such holder's status as a Non-U.S. Holder
for purposes of the backup withholding and information reporting requirements
discussed herein. Among other things, (i) Non-U.S. Holders currently required
to furnish certification of foreign status may be required to furnish new
certification of foreign status and (ii) certain Non-U.S. Holders not
currently required to furnish certification of foreign status may be required
to furnish certification of foreign status in the future. Prospective Non-U.S.
Holders should consult their tax advisors concerning the effect of such
regulations on an investment in the Common Stock.
 
  Backup withholding is not an additional tax. Any amounts withheld under the
backup withholding rules from a payment to a Non-U.S. Holder can be refunded
or credited against the Non-U.S. Holder's United States federal income tax
liability, if any, provided that the required information is furnished to the
IRS.
 
Estate Tax
 
  The Common Stock owned or treated as owned by an individual who is not a
citizen or resident (as defined for United States federal estate tax purposes)
of the United States at the time of death will be includable in the
individual's gross estate for United States federal estate tax purposes
(unless an applicable estate tax treaty provides otherwise) and therefore may
be subject to United States federal estate tax.
 
                                      62
<PAGE>
 
                                 LEGAL MATTERS
 
  The validity of the shares of Common Stock offered hereby will be passed
upon for the Company by Gibson, Dunn & Crutcher LLP, Washington, D.C. The
Underwriters will be represented by Cravath, Swaine & Moore, New York, NY.
 
                                    EXPERTS
 
  The audited financial statements and schedule as of December 31, 1997 and
1998, and for each of the three years in the period ended December 31, 1998
included in this Prospectus and elsewhere in the Registration Statement have
been audited by Arthur Andersen LLP, independent public accountants, as
indicated in their reports with respect thereto, and are included herein in
reliance upon the authority of said firm as experts in giving said reports.
 
                            ADDITIONAL INFORMATION
 
  The Company has filed with the SEC, Washington, D.C. 20549, a Registration
Statement on Form S-1 under the Securities Act with respect to the Common
Stock offered hereby. This Prospectus does not contain all the information set
forth in the Registration Statement and the exhibits and schedules thereto.
For further information with respect to the Company and such Common Stock,
reference is made to the Registration Statement and the exhibits and schedules
filed as part thereof. Statements contained in this Prospectus as to the
contents of any contract or any other document referred to are not necessarily
complete, and, in each instance, if such contract or document is filed as an
exhibit, reference is made to the copy of such contract or document filed as
an exhibit to the Registration Statement, each such statement being qualified
in all respects by such reference to such exhibit. A copy of the Registration
Statement, and the exhibits and schedules thereto, may be inspected without
charge at the public reference facilities maintained by the SEC in Room 1024,
450 Fifth Street, N.W., Washington, D.C. 20549, and at the SEC's regional
offices located at the Northwestern Atrium Center, 500 West Madison Street,
Suite 1400, Chicago, Illinois 60661 and Seven World Trade Center, 13th Floor,
New York, New York 10048, and copies of all or any part of the Registration
Statement may be obtained from such offices upon the payment of the fees
prescribed by the SEC. The SEC also maintains a World Wide Web site
(http://www.sec.gov) that contains reports, proxy and information statements
and other information regarding registrants such as the Company which file
electronically with the SEC. The Registration Statement, including all
exhibits thereto and amendments thereof, are available on this World Wide Web
site.
 
  The Company intends to furnish to its Stockholders annual reports containing
financial statements audited by its independent public accountants and will
make available copies of quarterly reports for the first three quarters of
each fiscal year containing unaudited financial information.
 
                                      63
<PAGE>
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<S>                                                                        <C>
Report of Independent Public Accountants.................................. F-2
Balance Sheets as of December 31, 1997 and 1998 and Pro Forma as of
 December 31, 1998........................................................ F-3
Statements of Operations for the years ended December 31, 1996, 1997 and
 1998..................................................................... F-4
Statements of Changes in Stockholder's Deficit for the years ended
 December 31, 1996, 1997 and 1998......................................... F-5
Statements of Cash Flows for the years ended December 31, 1996, 1997, and
 1998..................................................................... F-6
Notes to Financial Statements............................................. F-7
</TABLE>
 
                                      F-1
<PAGE>
 
       
                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To the Stockholder of The Corporate Executive Board Company:
 
  We have audited the accompanying balance sheets of The Corporate Executive
Board Company (formerly The Corporate Advisory Board Company and a division of
The Advisory Board Company until October 31, 1997) as of December 31, 1997 and
1998, and the related statements of operations, stockholder's deficit and cash
flows for each of the three years in the period ended December 31, 1998. 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 financial position of The Corporate Executive
Board Company as of December 31, 1997 and 1998, and the results of its
operations and its cash flows for each of the three years in the period ended
December 31, 1998, in conformity with generally accepted accounting
principles.
                                             
                                          /s/ Arthur Andersen LLP     
   
Washington, D.C.     
   
February 19, 1999     
 
                                      F-2
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                                 BALANCE SHEETS
                                 (In thousands)
 
<TABLE>
<CAPTION>
                                                  December 31,      Pro Forma
                                                 ----------------  December 31,
                                                  1997     1998        1998
                                                 -------  -------  ------------
                                                                   (Unaudited)
<S>                                              <C>      <C>      <C>
                     ASSETS
CURRENT ASSETS:
  Cash and cash equivalents..................... $ 8,937  $12,232    $ 7,272
  Marketable securities.........................   3,754    3,872      3,872
  Membership fees receivable, net...............  15,796   17,165     17,165
  Deferred income taxes.........................   1,150    1,438      5,983
  Deferred offering costs.......................     --     1,251      1,251
  Deferred incentive compensation (Note 2)......   1,096    2,023      2,023
  Prepaid expenses and other current assets.....     122      383        383
  Receivable from affiliate.....................     --       350        350
  Receivable from stockholder (Note 10).........   6,500    6,500      6,500
                                                 -------  -------    -------
    Total current assets........................  37,355   45,214     44,799
                                                 -------  -------    -------
PROPERTY AND EQUIPMENT, net.....................   2,513    3,714      3,714
                                                 -------  -------    -------
    Total assets................................ $39,868  $48,928    $48,513
                                                 =======  =======    =======
     LIABILITIES AND STOCKHOLDER'S DEFICIT
CURRENT LIABILITIES:
  Deferred revenues............................. $31,474  $39,061    $39,061
  Accounts payable and accrued liabilities......   2,082    5,159      5,159
  Accrued incentive compensation................   1,899    2,661      2,661
  Payable to affiliate..........................   1,507      --         --
  Stock option repurchase and special bonus plan
   liability (Note 9)...........................   5,398    7,054      4,654
                                                 -------  -------    -------
    Total current liabilities...................  42,360   53,935     51,535
                                                 -------  -------    -------
OTHER LIABILITIES:
  Long-term stock option repurchase liability
   (Note 9).....................................   2,550    3,140      3,140
                                                 -------  -------    -------
    Total liabilities...........................  44,910   57,075     54,675
                                                 -------  -------    -------
COMMITMENTS AND CONTINGENCIES (Notes 7 and 9)
STOCKHOLDER'S DEFICIT (Note 2 and 9):
  Preferred stock, par value $0.01; 5,000,000
   shares authorized, no shares issued and
   outstanding .................................     --       --         --
  Common stock, par value $0.01; 100,000,000
   shares authorized and 12,504,400 shares
   issued and outstanding as of December 31,
   1997 and 1998................................     125      125        125
  Additional paid-in capital....................   2,646    2,646     (5,334)
  Deferred compensation.........................  (1,459)    (953)      (953)
  Accumulated deficit...........................  (6,354)  (9,965)       --
                                                 -------  -------    -------
    Total stockholder's deficit.................  (5,042)  (8,147)    (6,162)
                                                 -------  -------    -------
    Total liabilities and stockholder's
     deficit.................................... $39,868  $48,928    $48,513
                                                 =======  =======    =======
</TABLE>
 
      The accompanying notes are an integral part of these balance sheets.
 
                                      F-3
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                            STATEMENTS OF OPERATIONS
                    (In thousands, except per share amounts)
 
<TABLE>
<CAPTION>
                                                        Year Ended December 31,
                                                        ------------------------
                                                         1996     1997    1998
                                                        -------  ------- -------
<S>                                                     <C>      <C>     <C>
REVENUES..............................................  $27,283  $38,669 $53,030
COSTS AND EXPENSES:
  Cost of services....................................   15,078   20,036  26,069
  Member relations and marketing......................    6,677    8,106  10,980
  General and administrative..........................    3,832    5,660   6,920
  Depreciation........................................      452      722     885
  Stock option restructuring and repurchase and
   special bonus plan (Note 9)........................    1,473    3,063   5,342
                                                        -------  ------- -------
                                                         27,512   37,587  50,196
                                                        -------  ------- -------
INCOME (LOSS) FROM OPERATIONS.........................     (229)   1,082   2,834
INTEREST INCOME.......................................      --       122     786
                                                        -------  ------- -------
INCOME (LOSS) BEFORE PROVISION (BENEFIT) FOR STATE
 INCOME TAXES.........................................     (229)   1,204   3,620
PROVISION (BENEFIT) FOR STATE INCOME TAXES............      (23)     120     361
                                                        -------  ------- -------
NET INCOME (LOSS).....................................  $  (206) $ 1,084 $ 3,259
                                                        =======  ======= =======
HISTORICAL NET INCOME (LOSS) PER SHARE-BASIC
 (NOTE 2).............................................  $ (0.02) $  0.09 $  0.26
                                                        =======  ======= =======
WEIGHTED-AVERAGE SHARES OUTSTANDING-BASIC (NOTE 2)....   12,504   12,504  12,504
                                                        =======  ======= =======
HISTORICAL NET INCOME (LOSS) PER SHARE-DILUTED
 (NOTE 2).............................................  $ (0.02) $  0.08 $  0.22
                                                        =======  ======= =======
WEIGHTED-AVERAGE SHARES OUTSTANDING-DILUTED (NOTE 2)..   12,504   13,752  14,950
                                                        =======  ======= =======
PRO FORMA STATEMENT OF OPERATIONS DATA (UNAUDITED)
 (NOTE 2):
  Income (loss) before provision (benefit) for income
   taxes, as reported.................................  $  (229) $ 1,204 $ 3,620
  Pro forma income tax provision (benefit)............      (95)     500   1,502
                                                        -------  ------- -------
  Pro forma net income (loss).........................  $  (134) $   704 $ 2,118
                                                        =======  ======= =======
  Pro forma net income (loss) per share-basic.........  $ (0.01) $  0.06 $  0.17
                                                        =======  ======= =======
  Pro forma net income (loss) per share-diluted.......  $ (0.01) $  0.05 $  0.14
                                                        =======  ======= =======
</TABLE>
 
        The accompanying notes are an integral part of these statements.
 
                                      F-4
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly the Corporate Advisory Board Company)
 
                 STATEMENTS OF CHANGES IN STOCKHOLDER'S DEFICIT
 
             For the Years Ended December 31, 1996, 1997, and 1998
                                 (In thousands)
 
<TABLE>
<CAPTION>
                              Preferred stock       Common stock    Additional
                              ------------------  -----------------  paid-in     Deferred   Accumulated
                              Shares    Amount      Shares   Amount  Capital   Compensation   Deficit    Total
                              -------   --------  ---------- ------ ---------- ------------ ----------- -------
<S>                           <C>       <C>       <C>        <C>    <C>        <C>          <C>         <C>
BALANCE AT DECEMBER 31,
 1995.......................       --    $    --         --   $--     $  --       $  --       $(7,205)  $(7,205)
Net loss....................       --         --         --    --        --          --          (206)     (206)
                               -------   -------- ----------  ----    ------      ------      -------   -------
BALANCE AT DECEMBER 31,
 1996.......................       --         --         --    --        --          --        (7,411)   (7,411)
Distributions to
 stockholder................       --         --         --    --        --          --           (20)      (20)
Division Spin-Off (Note 2)..       --         --  12,504,400   125       --          --            (7)      118
Deferred compensation
 pursuant to substitution of
 stock options..............       --         --         --    --      2,646      (1,459)         --      1,187
Net income..................       --         --         --    --        --          --         1,084     1,084
                               -------   -------- ----------  ----    ------      ------      -------   -------
BALANCE AT DECEMBER 31,
 1997.......................       --         --  12,504,400   125     2,646      (1,459)      (6,354)   (5,042)
Distributions to
 stockholder................       --         --         --    --        --          --        (6,870)   (6,870)
Amortization of deferred
 compensation...............       --         --         --    --        --          506          --        506
Net income..................       --         --         --    --        --          --         3,259     3,259
                               -------   -------- ----------  ----    ------      ------      -------   -------
BALANCE AT DECEMBER 31, 1998
 ...........................       --    $    --  12,504,400  $125    $2,646      $ (953)     $(9,965)  $(8,147)
                               =======   ======== ==========  ====    ======      ======      =======   =======
</TABLE>
 
 
        The accompanying notes are an integral part of these statements.
 
                                      F-5
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                            STATEMENTS OF CASH FLOWS
                                 (In thousands)
 
<TABLE>
<CAPTION>
                                                    Year Ended December 31,
                                                    --------------------------
                                                     1996      1997     1998
                                                    -------  --------  -------
<S>                                                 <C>      <C>       <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
 Net income (loss)................................. $  (206) $  1,084  $ 3,259
 Adjustments to reconcile net income (loss) to net
  cash flows provided by operating activities--
  Depreciation.....................................     452       722      885
  Deferred income taxes............................     144      (194)    (288)
  Stock option restructuring and repurchase and
   special bonus plan..............................   1,473     3,063    5,342
  Changes in operating assets and liabilities:
   Membership fees receivable, net.................  (3,356)   (1,902)  (1,369)
   Deferred offering costs.........................     --        --    (1,251)
   Deferred incentive compensation.................     218      (226)    (927)
   Prepaid expenses and other current assets.......     --       (122)    (261)
   Deferred revenues...............................   6,314     9,778    7,587
   Accounts payable and accrued liabilities........     121       984    3,077
   Accrued incentive compensation..................     342       365      762
                                                    -------  --------  -------
    Net cash flows provided by operating
     activities....................................   5,502    13,552   16,816
                                                    -------  --------  -------
CASH FLOWS FROM INVESTING ACTIVITIES:
 Purchases of property and equipment...............    (776)   (1,530)  (2,086)
 Purchases of marketable securities................     --     (3,754)    (118)
 Receivable from stockholder.......................     --     (6,500)     --
                                                    -------  --------  -------
    Net cash flows used in investing activities....    (776)  (11,784)  (2,204)
                                                    -------  --------  -------
CASH FLOWS FROM FINANCING ACTIVITIES:
 Change in payable to/receivable from affiliate....  (1,221)    7,189   (1,857)
 Distributions to stockholder......................     --        (20)  (6,870)
 Stock option repurchases..........................  (3,505)      --    (2,590)
                                                    -------  --------  -------
    Net cash flows (used in) provided by financing
     activities....................................  (4,726)    7,169  (11,317)
                                                    -------  --------  -------
NET INCREASE IN CASH AND CASH EQUIVALENTS..........     --      8,937    3,295
Cash and cash equivalents, beginning of period.....     --        --     8,937
                                                    -------  --------  -------
Cash and cash equivalents, end of period........... $   --   $  8,937  $12,232
                                                    =======  ========  =======
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
 Cash paid during the period for--
  State income taxes............................... $   --   $     90  $   470
                                                    =======  ========  =======
</TABLE>
 
        The accompanying notes are an integral part of these statements.
 
                                      F-6
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                         NOTES TO FINANCIAL STATEMENTS
 
1. Basis of Accounting and Business Description:
 
  The Corporate Executive Board Company (the "Company," formerly The Corporate
Advisory Board Company) was incorporated on September 11, 1997, under the laws
of the State of Delaware. The Company's business was operated as a division of
The Advisory Board Company, a Maryland corporation, until October 31, 1997
when the business was contributed to the Company and spun-off (the "Spin-Off")
to The Advisory Board Company's sole stockholder. On October 31, 1997, all of
the outstanding shares of the Company were distributed as a dividend to the
sole stockholder of The Advisory Board Company. The Company is structured as
an "S" corporation, with ownership maintained by a sole stockholder. The
Company and The Advisory Board Company are wholly-owned by the same
stockholder. The accompanying financial statements represent the accounts of
the Company as if it had operated as a stand-alone entity in accordance with
the accounting rules prescribed for "carve-out" financial statements for the
periods preceding the Spin-Off.
 
  The Company provides "best practices" research and analysis focusing on
corporate strategy, operations and general management issues. The Company
provides its research and analysis to corporations on an annual subscription
basis. For a fixed annual fee, members of each subscription program have
access to an integrated set of services, including best practices research
studies, executive education seminars, customized research briefs and on-line
access to the Company's databases.
 
2. Summary of Significant Accounting Policies:
 
 Spin-Off Presentation
 
  Prior to the Spin-Off, the Company did not maintain separate bank accounts
and all cash receipts and disbursements were made via The Advisory Board
Company and are reflected as changes in receivable from or payable to
affiliate. Subsequent to the Spin-Off, the Company is responsible for its own
cash management and records amounts owed to The Advisory Board Company in
payable to affiliate. The Company settles the amounts due to The Advisory
Board Company for certain common vendor costs and under an Administrative
Services Agreement (Note 3), and amounts due to DGB Enterprises, Inc., for
management cost allocations (Note 3), at least quarterly.
 
 Revenue and Commission Expense Recognition
 
  Membership fees are recognized ratably over the term of the related
membership, which is generally twelve months. Membership fees are generally
billable when a letter of agreement is signed by the member. Certain
membership fees are billed on an installment basis.
 
  The Company's policy is to record the full amount of membership fees
receivable and related deferred revenue when a letter of agreement is signed
by a member. Certain incentive compensation expenses related to the
negotiation of new and renewal memberships are deferred and are amortized over
the term of the related memberships.
 
                                      F-7
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
 
 Net Income (Loss) Per Share
 
  In February 1997, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards ("SFAS") No. 128, "Earnings per Share." SFAS
No. 128 is effective for financial statements issued after December 15, 1997.
SFAS No. 128 requires dual presentation of basic and diluted net income per
share. Basic net income per share includes no dilution and is computed by
dividing net income or loss available to common shareholders by the weighted-
average number of common shares outstanding for the period. Diluted net income
per share includes the impact of dilutive securities, such as options,
warrants and convertible debt or preferred equity securities. Options
outstanding as of December 31, 1996 were not included in calculating diluted
net income per share because they were anti-dilutive. As a result, there is no
difference between the amounts of basic and diluted net income per share for
that period.
 
  In February 1998, the Securities and Exchange Commission issued Staff
Accounting Bulletin No. 98 ("SAB 98") concerning the computation of earnings
per share. Among other things, SAB 98 affects companies that issued shares of
stock within twelve months of an initial public offering ("IPO"), and/or
converted from an "S" corporation to a "C" corporation for Federal income tax
purposes. SAB 98 requires that, in addition to reporting pro forma net income
per share for the effect of the change in tax status, companies report actual
historical net income per share. Further, prior to the issuance of SAB 98,
stock and stock options issued within twelve months of an IPO below the IPO
price were treated as if outstanding for all periods presented, calculated
using the treasury stock method. SAB 98 has discontinued this treatment for
such issuances when the issuance price was considered more than nominal
("nominal issuances"). The Company has determined that the issuances of stock
and stock options within twelve months of the IPO were not nominal issuances.
SAB 98 was effective upon its issuance and has been applied in the
accompanying financial statements for all periods presented. Weighted-average
shares outstanding for the years ended December 31, 1996 and 1997, were
calculated assuming that the capital structure established at the date of the
Spin-Off was in effect during those periods.
 
<TABLE>
<CAPTION>
                                                               Year Ended
                                                              December 31,
                                                          --------------------
                                                           1996   1997   1998
                                                          ------ ------ ------
   <S>                                                    <C>    <C>    <C>
   Weighted-average common shares outstanding--basic..... 12,504 12,504 12,504
   Dilutive effect of stock options......................    --   1,248  2,446
                                                          ------ ------ ------
   Weighted-average common and equivalent shares
    outstanding--diluted................................. 12,504 13,752 14,950
                                                          ====== ====== ======
</TABLE>
 
 Pro Forma Statements of Operations Data (Unaudited)
 
  Prior to the closing of the initial public offering, the Company will
terminate its status as an "S" corporation and will be subject to Federal and
state taxes at prevailing corporate rates. Accordingly, pro forma unaudited
net income (loss) and net income (loss) per share are based on the assumption
that the Company's "S" corporation status was terminated at the beginning of
each period. The Company has provided income taxes on a pro forma basis as if
it were a subchapter "C" corporation for all periods presented utilizing an
effective rate of 41.5%.
 
 Pro Forma Balance Sheet (Unaudited)
 
  The unaudited pro forma balance sheet as of December 31, 1998, reflects (1)
a distribution to the Company's sole stockholder of $4.0 million, (2)
termination of the Company's "S" corporation election and the increase
 
                                      F-8
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
of the Company's deferred income tax asset of approximately $4.5 million as of
December 31, 1998, (3) the reclassification of the accumulated deficit to
additional paid-in capital, and (4) a settlement of a special bonus commitment
to selected employees of $2.4 million, 60% in stock owned by the Principal
Selling Stockholder and 40% in cash by the Company (Note 9). The pro forma
adjustments give effect to transactions that will occur upon completion of the
Company's initial public offering. However, no effect has been given for the
exercise of stock options contemplated at the Offering or the payment of
expenses of the Offering.
 
 Increase in Authorized Shares and Stock Split
   
  In connection with the Company's initial public offering, the Company
amended and restated its certificate of incorporation to increase the number
of authorized shares of Class A Stock and Class B Stock to 17,200 shares and
13,171,760 shares, respectively, and to authorize 100,000,000 shares of Common
Stock, and 5,000,000 shares of Preferred Stock, each with a par value of $0.01
per share. In addition, to facilitate the initial public offering, the Company
effected a 17.2-for-1 stock split of the shares of Class A Stock and Class B
Stock in form of a stock dividend. Pursuant to the Second Amended and Restated
Certificate of Incorporation of the Company, Class A Stock and Class B Stock
will be automatically converted into Common Stock upon the transfer of any
shares of Class A Stock or Class B Stock to the underwriters in the initial
public offering. Accordingly, all share and per share amounts have been
retroactively adjusted to give effect to these events. These actions are
subject to the closing of the initial public offering contemplated in the
Prospectus.     
 
 Concentrations of Risk
 
  Financial instruments that potentially subject the Company to significant
concentrations of credit risk consist principally of cash and cash
equivalents, marketable securities, and membership fees receivable. The
Company maintains cash and cash equivalents and marketable securities with
financial institutions. Marketable securities consist of diversified holdings
of high-grade municipal and corporate bonds. The concentration of credit risk
with respect to membership fees receivable is generally diversified due to the
large number of entities comprising the Company's membership base. The Company
performs periodic evaluations of the financial institutions, security
investments, and its membership base and establishes allowances for potential
credit losses.
 
  The Company generates revenues from customers located outside the United
States. For the years ending December 31, 1996, 1997, and 1998 approximately
29%, 31%, and 33% of revenues, respectively, were generated from customers
located outside the United States. Sales to customers in European countries
for the years ended December 31, 1996, 1997, and 1998 were approximately 12%,
13%, and 15%, respectively, with no other geographic area representing more
than 10% of revenues in any period. No one member accounted for more than 2%
of revenues for any period presented.
 
 Fair Value of Financial Instruments
 
  The fair value of current assets and current liabilities approximates their
carrying value due to their short maturity. The fair value of the long-term
portion of stock option repurchase liability was approximately $2.7 million as
of December 31, 1998, utilizing a discount rate of 7%.
 
 Long-Lived Assets
 
  Long-lived assets and identifiable assets to be held and used are reviewed
for impairment whenever events or changes in circumstances indicate that the
carrying amount should be addressed. Impairment is measured by comparing the
carrying value to the estimated undiscounted future cash flows expected to
result from the use of the assets and their eventual dispositions. The Company
considers expected cash flows and estimated future operating results, trends,
and other available information in assessing whether the carrying value of the
assets is impaired. The Company believes that no such impairment existed as of
December 31, 1997 and 1998.
 
                                      F-9
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
 
 Property and Equipment
 
  Furniture, fixtures, and equipment are stated at cost, less accumulated
depreciation. Depreciation is calculated using the straight-line method over
the estimated useful lives of the assets, ranging from five to eleven years.
 
 Income Taxes
 
  The sole stockholder has elected that the Company be treated as an "S"
corporation for Federal income tax purposes, whereby taxable income or losses
flow through to, and are reportable by, the individual stockholder.
Accordingly, no provision has been made for Federal income taxes in the
accompanying audited financial statements. The District of Columbia as well as
several states, however, do not recognize "S" corporation status. Income taxes
related to the District of Columbia and other states are calculated for the
Company on a separate return basis for all periods presented using the
liability method in accordance with SFAS No. 109, "Accounting for Income
Taxes." The unaudited pro forma information included in the statement of
operations reflects income tax expense as if the Company had been a stand-
alone "C" corporation for all periods presented.
 
 Product Development
 
  Costs related to the identification and development of new programs are
expensed when incurred.
 
 Cash Equivalents and Marketable Securities
 
  Marketable securities that mature within three months of purchase are
considered cash equivalents. Investments with maturities of more than three
months are classified as marketable securities. As of December 31, 1997, and
1998, the Company's marketable securities were municipal and corporate bonds.
These bonds are classified as trading securities in accordance with SFAS No.
115, "Accounting for Certain Investments in Debt and Equity Securities."
Accordingly, the carrying value of these bonds is adjusted to fair value, with
unrealized gains and losses included in the statements of operations. At
December 31, 1997 and 1998, the fair value of marketable securities
approximated historical cost.
 
 Use of Estimates in Preparation of Financial Statements
 
  The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
 Recently Adopted Accounting Pronouncements
 
  In June 1997, the Financial Accounting Standards Board issued SFAS No. 130,
"Reporting Comprehensive Income," and SFAS No. 131, "Disclosures About
Segments of an Enterprise and Related Information." The Company adopted both
of these standards during the year ended December 31, 1998.
 
  SFAS No. 130 requires "comprehensive income" and the components of "other
comprehensive income" to be reported in the financial statements and/or notes
thereto. Since the Company does not have any components of "other
comprehensive income," reported net income is the same as "total comprehensive
income" for all periods presented.
 
  SFAS No. 131 requires an entity to disclose financial and descriptive
information about its reportable operating segments. It also establishes
standards for related disclosures about products and services, geographic
areas, and major customers. The Company has made the appropriate disclosures
as required by SFAS No. 131.
 
 
                                     F-10
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
3. Transactions with Affiliates:
 
 Administrative Support and Management Services
 
  The Advisory Board Company, which is controlled by the same sole shareholder
as the Company, provides the Company with administrative support services.
Subsequent to the Spin-Off, fees are charged to the Company for these services
in accordance with an Administrative Services Agreement (the "ASA"). The term
of the ASA expires on October 31, 1999. The ASA provides for fees based on
either direct costs, costs per certain transaction, headcount, or a fixed cost
per month. For periods prior to the Spin-Off, the Company allocated the costs
for administrative support services using methodologies designed to
consistently apply the provisions of the ASA (e.g., direct costs, revenue
activity drivers, or headcount). In management's opinion, the standard costs
developed approximate the cost of internally providing or externally sourcing
such services and, therefore, represent what the costs would be on a stand-
alone basis.
 
  Management cost allocations consisting primarily of senior executive costs
allocated by DGB Enterprises, Inc., a separate entity controlled by the
Company's sole shareholder, are charged to the Company (pre and post Spin-Off)
based on an allocation of time spent on the Company's activities by each
executive monthly. In management's opinion, the allocations represent what the
costs would be on a stand-alone basis.
 
 Receivable from (Payable to) Affiliate
 
  Activity in the receivable from (payable to) affiliate is as follows (in
thousands):
 
<TABLE>
<CAPTION>
                                                    Year Ended December 31,
                                                    -------------------------
                                                     1996     1997     1998
                                                    -------  -------  -------
   <S>                                              <C>      <C>      <C>
   Balance at beginning of period.................. $ 4,461  $ 5,682  $(1,507)
   Costs allocated to the Company--
    The Advisory Board Company.....................  (3,454)  (5,502)  (4,931)
    DGB Enterprises, Inc...........................  (1,404)  (1,490)  (1,211)
   Cash transfers from the Company to The Advisory
    Board Company..................................   6,079    4,079   14,513
   Cash transfers to the Company from The Advisory
    Board Company..................................     --    (4,276)  (6,514)
                                                    -------  -------  -------
   Balance at end of period........................ $ 5,682  $(1,507) $   350
                                                    =======  =======  =======
</TABLE>
 
4. Membership Fees Receivable:
 
  Membership fees receivable consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                           As of December 31,
                                                           --------------------
                                                             1997       1998
                                                           ---------  ---------
   <S>                                                     <C>        <C>
   Billed fees receivable................................. $  12,734  $  13,339
   Unbilled fees receivable...............................     4,062      5,059
                                                           ---------  ---------
                                                              16,796     18,398
   Allowance for doubtful accounts........................    (1,000)    (1,233)
                                                           ---------  ---------
     Membership fees receivable, net...................... $  15,796  $  17,165
                                                           =========  =========
</TABLE>
 
 
                                     F-11
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
  Billed fees receivable represent invoiced membership fees. Unbilled fees
receivable represent fees due to be billed to members. Netted against revenues
are provisions for bad debt of $0.7 million, $1.2 million and $1.4 million,
for the years ended December 31, 1996, 1997, and 1998 respectively.
 
5. Property and Equipment:
 
Property and equipment consists of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                           As of December 31,
                                                           --------------------
                                                             1997       1998
                                                           ---------  ---------
   <S>                                                     <C>        <C>
   Furniture, fixtures, and equipment..................... $   3,606  $   4,636
   Leasehold improvements.................................       852      1,272
   Accumulated depreciation...............................    (1,945)    (2,194)
                                                           ---------  ---------
     Property and equipment, net.......................... $   2,513  $   3,714
                                                           =========  =========
</TABLE>
 
6. Income Taxes:
 
  The provision (benefit) for state income taxes consists of the following (in
thousands):
 
<TABLE>
<CAPTION>
                                                    Year Ended December 31,
                                                   ---------------------------
                                                     1996      1997     1998
                                                   --------  --------  -------
   <S>                                             <C>       <C>       <C>
   Current........................................ $   (167) $    314  $   649
   Deferred.......................................      144      (194)    (288)
                                                   --------  --------  -------
     Provision (benefit) for state income taxes... $    (23) $    120  $   361
                                                   ========  ========  =======
</TABLE>
 
  The statutory state and effective tax rates reflected in the provision
(benefit) for income taxes are both 9.975%. Deferred income taxes are provided
for temporary differences between the tax basis of assets and liabilities and
their reported amounts in the financial statements. The tax effect of these
temporary differences is presented below (in thousands):
 
<TABLE>
<CAPTION>
                                                           As of December 31,
                                                           -------------------
                                                             1997      1998
                                                           --------- ---------
   <S>                                                     <C>       <C>
   Deferred state income tax assets:
     Deferred compensation agreements..................... $     923 $   1,167
     Allowance for doubtful accounts......................       100       123
     Compensation accrued for financial reporting
      purposes............................................       189       265
     Other................................................        47        85
                                                           --------- ---------
       Total deferred state income tax assets.............     1,259     1,640
                                                           --------- ---------
   Deferred state income tax liabilities:
     Deferred incentive compensation......................       109       202
                                                           --------- ---------
       Net deferred state income tax assets............... $   1,150 $   1,438
                                                           ========= =========
</TABLE>
 
 
                                     F-12
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
 
  Management of the Company has determined that based upon the Company's
expected future earnings it will more likely than not be able to fully
recognize these net deferred state income tax assets.
 
7. Commitments and Contingencies:
 
 Operating Leases
  The Company has entered into an office space sublease agreement with The
Advisory Board Company that is cancelable upon six months' notice. In 1998,
the Company initiated plans to relocate its office facilities and negotiated a
new lease with an unrelated third party. The new lease will expire on June 30,
2009. The Company's estimated future minimum lease payments under these lease
agreements (including the transition period) are as follows (in thousands):
 
<TABLE>
<CAPTION>
   Year  Ending December 31,
   -------------------------
   <S>                                                                  <C>
   1999................................................................ $ 2,776
   2000................................................................   2,500
   2001................................................................   2,926
   2002................................................................   2,984
   2003................................................................   3,087
   Thereafter..........................................................  18,511
                                                                        -------
     Total............................................................. $32,784
                                                                        =======
</TABLE>
 
  In conjunction with the new lease, the Company entered into a $1.3 million
Letter-of-Credit Agreement to provide a security deposit for the office space
lease. The Letter-of-Credit Agreement is collateralized by the Company's cash,
accounts receivable and property and equipment.
 
  Rent expense charged to operations during the fiscal years ended December
31, 1996, 1997, and 1998, was approximately $1.3 million, $1.6 million, and
$2.4 million, respectively.
 
 Line-of-Credit
 
  In September 1998, the Company obtained a commitment on a $10.0 million
revolving line-of-credit from a commercial bank. The line-of-credit bears
interest at the prime rate and is secured by substantially all of the
Company's assets. There have been no borrowings on the line-of-credit.
 
8. Benefit Plans:
  In fiscal 1993, The Advisory Board Company began sponsoring a defined
contribution 401(k) Plan (the "Plan") in which the Company's employees
participate. Pursuant to the Plan, all employees who have reached the age of
twenty-one are eligible to participate. The sponsor provides contributions
equal to 25% of an employee's contribution up to a maximum of 4% of base
salary. Contributions to the Plan for the Company's participants during the
years ending December 31, 1996, 1997, and 1998, were approximately $51,000,
$79,000 and $112,000, respectively. In September 1998, the Company established
a defined contribution 401(k) Plan (the "New Plan") with the same provisions
as the Advisory Board Company Plan. As of September 1, 1998, participants'
accounts were transferred to the New Plan and subsequent participant and
Company contributions were made directly to the New Plan.
 
9. Stock Option Plans:
 
 Background
  On March 1, 1994, The Advisory Board Company adopted the Stock-Based
Incentive Compensation Plan (the "Original Plan") to provide for granting of
incentive stock options ("Original Options"). The Original Plan entitled
certain employees to purchase shares of The Advisory Board Company's Class B
Nonvoting Common
 
                                     F-13
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
Stock at a price equal to at least the fair market value of The Advisory Board
Company's stock on the date of grant. The Original Options were exercisable on
the date ten years after the date of grant, subject to acceleration upon the
occurrence of certain events that would alter the current ownership of The
Advisory Board Company, including an initial public offering or private sale.
 
 Liquid Markets Agreements
  On March 31, 1995, The Advisory Board Company and existing optionees adopted
the Liquid Markets Agreements ("Liquid Markets Agreements") to provide the
optionees an opportunity to (i) sell all or a portion of their Original
Options to The Advisory Board Company immediately and/or (ii) modify all or a
portion of their Original Options in accordance with the terms and conditions
of the Continuing Stock-Based Incentive Compensation Plan, which is described
below (the "Continuing Option Plan").
 
  The Liquid Markets Agreements provided for the designation of Original
Options as described above and governed the payments to be made to the
optionees for options sold ("Sold Options"). For the options elected to be
sold, The Advisory Board Company was committed to pay an initial payment of
$55 per option, minus the exercise price, in two installments (25% no later
than December 31, 1995, and 75% no later than December 31, 1996). The Advisory
Board Company was also obligated to pay the optionee an additional payment
(the "Earn Out Payment") based on The Advisory Board Company's income from
operations for the fiscal year ending March 31, 1998.
 
  In March 1997, The Advisory Board Company amended the Liquid Markets
Agreements to provide for (1) guaranteed versus variable Earn Out Payments,
(2) revised payment schedules, (3) revised employment requirements, and (4) in
limited instances, the ability to put current options retroactively into the
Liquid Markets plan.
 
  In December 1998, the Company amended the Liquid Markets Agreements relating
to its employees by eliminating the future employment requirements.
 
  The accompanying financial statements present the compensation expense
related to employees of the Company prior to and after the Spin-Off.
 
  The Company recognized approximately $1.5 million, $1.8 million and $2.4
million in compensation expense related to the Liquid Markets Agreements in
years 1996, 1997, and 1998, respectively.
 
  The Company's obligation under the Liquid Markets Agreements is reflected in
stock option repurchase and special bonus plan liability in the accompanying
balance sheets. There are no earnings charges subsequent to December 31, 1998,
related to this agreement. During the year ended December 31, 1998, the
Company paid $2.6 million in accordance with the Liquid Markets Agreements.
Future cash commitments related to the Liquid Markets Agreements are as
follows (in thousands):
 
<TABLE>
<CAPTION>
   Year ended December 31,
   -----------------------
   <S>                                                                    <C>
   1999.................................................................. $4,723
   2000..................................................................  3,140
                                                                          ------
     Total............................................................... $7,863
                                                                          ======
</TABLE>
 
 Stock-Based Incentive Compensation Plan
  Adopted on March 31, 1995, the Continuing Option Plan amended and restated
the Original Plan and formalized the terms and conditions of the remaining
modified options (the "Continuing Options"). In conjunction with the Spin-Off,
The Advisory Board Company executed Substitution Agreements with each of the
employees of the Company participating in the Continuing Option Plan. The
Substitution Agreement provided for the exchange of The Advisory Board Company
Continuing Options for options in the Company (the "Options") granted under
the Company's Stock-Based Incentive Compensation Plan (the "Current Plan"),
which was adopted at the time of the Spin-Off. The Options will generally be
exercisable at the earlier of April 1, 2000, a sale of the Company, or upon an
initial public offering of the Company's capital stock (50% one year
 
                                     F-14
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
after the offering, 30% two years after the offering and 20% three years after
the offering). The Options expire between April 2001 and March 2009. Upon
exercise, the following means of disposing of the stock will be available to
the optionee:
 
  (i) prior to an initial public offering, the exercise of a right by the
optionee to sell the stock to the Company at fair market value after a minimum
six-month holding period, (ii) prior to an initial public offering, the
exercise of a right to sell the stock to a purchaser upon a sale of the
Company, (iii) the open market sale after an initial public offering of the
Company's capital stock, or (iv) prior to an initial public offering, the
exercise of a right by the Company to redeem the stock at fair market value.
   
  The Current Plan provides for the issuance of options to purchase up to
6,880,000 shares of Class B Nonvoting Common Stock. As of December 31, 1998, a
total of 1,541,120 shares were available for future awards under this plan.
    
  The terms of the Substitution Agreement resulted in a new measurement date
for 1,855,880 options held by employees of the Company, resulting in the
recognition of compensation expense. The compensation expense is being
recognized over the related vesting period. The compensation expense is
reflected in stock option restructuring and repurchase and special bonus plan
in the accompanying statements of operations and was $1.3 and $0.5 million for
the years ending December 31, 1997 and 1998, respectively. The Company will
recognize the remaining $1.0 million over the vesting period, which is subject
to adjustment, as described above, in the event of an initial public offering.
The recognition of compensation expense was not required on the remaining
1,421,993 options outstanding at the time of the Spin-Off under the provisions
of EITF No. 90-9.
 
 Transactions
 
  A summary of changes in common stock options under the Original Plan, the
Continuing Option Plan, and the Current Plan is as follows (Note: The Advisory
Board Company Original Options have not been restated to reflect the impact of
the stock split (See Note 2)):
 
<TABLE>
<CAPTION>
                                                                                            Weighted-
                                                                 Number    Exercise Price    Average
                                                               of Options    per Share    Exercise Price
                                                               ----------  -------------- --------------
   <S>                                                         <C>         <C>            <C>
   The Advisory Board Company Original Options:
     Outstanding at December 31, 1994........................    129,100   $15.00-$30.00      $16.25
       Options granted.......................................    144,475   $50.00-$63.00      $51.64
       Options sold under Liquid Markets Agreement...........   (111,100)  $15.00-$30.00      $15.99
                                                               ---------   -------------      ------
     Outstanding at December 31, 1995........................    162,475   $15.00-$63.00      $47.91
       Options granted.......................................     12,000   $63.00-$70.00      $65.92
                                                               ---------   -------------      ------
     Outstanding at December 31, 1996........................    174,475   $15.00-$70.00      $49.15
       Options granted.......................................     17,500       $74.00         $74.00
       Options sold under Liquid Markets Agreement...........    (18,000)  $15.00-$30.00      $17.92
       Options cancelled.....................................     (5,000)      $63.00         $63.00
                                                               ---------   -------------      ------
     Outstanding prior to Spin-Off Transaction...............    168,975   $15.00-$74.00      $53.59
                                                               =========   =============      ======
   Company Options:
     Outstanding subsequent to Spin-Off
       Transaction, related substitution and recapitalization  3,277,873   $  0.06-$1.28      $ 0.77
       Options granted.......................................  1,407,407   $  2.03-$2.73      $ 2.18
                                                               ---------   -------------      ------
     Outstanding at December 31, 1997........................  4,685,280   $  0.06-$2.73      $ 1.19
       Options granted.......................................    865,160   $ 2.73-$14.24      $ 7.30
       Options cancelled.....................................   (211,560)  $  2.03-$2.73      $ 2.14
                                                               ---------   -------------      ------
     Outstanding at December 31, 1998........................  5,338,880   $ 0.06-$14.24      $ 2.13
                                                               =========   =============      ======
</TABLE>
 
 
                                     F-15
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Continued)
 
  Exercise prices for employee stock options outstanding at December 31, 1998,
are as follows:
 
<TABLE>
<CAPTION>
                              Number Outstanding   Weighted-Average      Weighted-
                              as of December 31, Remaining Contractual    Average
   Range of Exercise Prices          1998             Life-Years       Exercise Price
   ------------------------   ------------------ --------------------- --------------
   <S>                        <C>                <C>                   <C>
          $0.06--$0.06              172,000              4.33              $ 0.06
          $0.29--$0.41              696,600              4.33              $ 0.31
          $0.58--$0.87              447,200              4.33              $ 0.75
          $0.93--$1.28            1,962,073              6.87              $ 0.98
          $2.03--$2.03              963,647              4.69              $ 2.03
          $2.73--$3.11              476,440              4.33              $ 2.88
          $6.98--$6.98              448,920              4.87              $ 6.98
        $14.24--$14.24              172,000              4.58              $14.24
        --------------            ---------              ----              ------
         $0.06--$14.24            5,338,880              5.38              $ 2.13
        ==============            =========              ====              ======
</TABLE>
 
  As of December 31, 1998, 110,527 options with a weighted average exercise
price of $0.98 are exercisable.
 
  On December 14, 1998, the Company adopted the Directors' Stock Plan
("Directors' Plan"), which reserves 430,000 shares of Class B Nonvoting Common
Stock for issuance. The Directors' Plan provides for a maximum grant of 86,000
shares per year per director. The Company granted 144,480 shares at a weighted
average exercise price of $14.24 per share in 1998. These shares generally
vest one year from the date of grant and have a weighted average remaining
contractual life of 9.96 years.
   
  On February 18, 1999, the Company adopted the 1999 Stock Option Plan ("1999
Plan"), which reserves 1,892,000 shares of Common Stock for issuance. There
have been no issuances to date under the 1999 Plan.     
 
  Under the terms of their agreements, the Company's Chairman and other
management employees will receive stock options to purchase 693,000 shares of
Common Stock of the Company upon completion of an initial public offering,
which options will be priced at the then fair market value. The Chairman's
employment agreement provides for the payment of $1.0 million in the event of
a sale of the Company prior to an initial public offering.
 
  The Company has elected to account for stock and stock rights in accordance
with APB No. 25. SFAS No. 123, "Accounting for Stock Based Compensation,"
established an alternative method of expense recognition for stock-based
compensation awards to employees based on fair values. The Company has elected
not to adopt SFAS No. 123 for expense recognition purposes.
 
  Pro forma information regarding net income is required by SFAS No. 123 and
has been determined as if the Company had accounted for its employee stock
options under the fair value method prescribed by SFAS No. 123. The fair
values of options granted during the year ended December 31, 1996, were
estimated at the date of grant using the Black-Scholes option pricing model
with the following weighted-average assumptions: risk free interest rate of
6.5%; no dividend yield; weighted-average expected lives of the option of five
years, and expected volatility of 50%. The fair values of options granted
during the years ended December 31, 1997 and 1998, were estimated under the
same method, with the following weighted-average assumptions: risk free
interest rate of 5.5%; no dividend yield; weighted-average expected lives of
the options of three years, and expected volatility of 50%.
 
  The Black-Scholes option valuation model was developed for use in estimating
the fair value of traded options that have no vesting restrictions and are
fully transferable. In addition, option valuation models require the input of
highly subjective assumptions, including the expected stock price
characteristics that are significantly different from those of traded options.
Because changes in the subjective input assumptions can materially affect the
fair value estimate, in management's opinion, the existing models do not
necessarily provide a reliable single measure of the fair value of its stock
rights.
 
 
                                     F-16
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                  NOTES TO FINANCIAL STATEMENTS--(Concluded)
 
  The weighted-average fair values of The Advisory Board Company original
options granted during the years ended December 31, 1995, 1996, and from
January 1 to the date of the Spin-Off in 1997, were $1.55, $1.98, and $2.16
per share, respectively. The weighted-average fair values of Company options
granted (including options granted under the Directors' Plan) from the date of
the Spin-Off to December 31, 1997, and the year ended December 31, 1998, were
$1.27 and $3.19, respectively. For purposes of pro forma disclosures, the
estimated fair value of options is amortized to expense over the estimated
service period. If the Company had used the fair value accounting provisions
of SFAS No. 123, the pro forma net loss for 1995 and 1996, would have been
approximately $9.9 million and $0.6 million, or $0.79 and $0.05 per share
(basic and diluted on a historical basis), respectively. Pro forma net income
for 1997 would have been approximately $1.6 million or $0.13 per share (basic
historical) and $0.11 per share (diluted-historical). Pro forma net income for
1998 would have been approximately $1.6 million or $0.13 per share (basic-
historical) and $0.10 per share (diluted-historical). The provisions of SFAS
No. 123 may not necessarily be indicative of future results.
 
 Special Bonus Plan
 
  In December 1998, the Company and the Principal Stockholder agreed to pay a
special bonus to selected employees in an amount totaling $2.4 million. The
bonus is payable the earlier of the date of an initial public offering or
December 31, 1999. If the amount is paid at the date of an initial public
offering, then the obligation will be payable 60% in stock owned by the
Principal Stockholder (at the offering price) and 40% in cash by the Company.
If the amount is not paid in conjunction with an initial public offering, then
the obligation will be payable 100% in cash by the Company. The Company
recognized $2.4 million in expense related to this plan in 1998.
 
10. Receivable from Stockholder:
 
  The Company holds a promissory note in the amount of $6.5 million from its
principal stockholder. The note bears interest at a rate of 7% payable
semiannually on each May 1 and November 1; the principal sum is due and
payable on October 31, 2007. The Company expects this note to be repaid using
proceeds from the initial public offering and, accordingly, has classified it
as current in the accompanying balance sheets.
 
                                     F-17
<PAGE>
 
       
                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To the Stockholder of The Corporate Executive Board Company:
   
  We have audited, in accordance with generally accepted auditing standards,
the financial statements of The Corporate Executive Board Company (formerly
The Corporate Advisory Board Company and a division of The Advisory Board
Company until October 31, 1997) included in this registration statement and
have issued our report thereon dated February 19, 1999. Our audits were made
for the purpose of forming an opinion on the basic financial statements taken
as a whole. The Schedule II--Valuation and Qualifying Accounts is the
responsibility of the Company's management and is presented for purposes of
complying with the Securities and Exchange Commission's rules and is not part
of the basic financial statements. This schedule has been subjected to the
auditing procedures applied in the audits of the basic financial statements
and, in our opinion, fairly states, in all material respects, the financial
data required to be set forth therein in relation to the basic financial
statements taken as a whole.     
                                             
                                          /s/ Arthur Andersen LLP     
   
Washington, D.C.     
   
February 19, 1999     
 
                                     F-18
<PAGE>
 
                     THE CORPORATE EXECUTIVE BOARD COMPANY
                (formerly The Corporate Advisory Board Company)
 
                 SCHEDULE II--VALUATION AND QUALIFYING ACCOUNTS
                                 (In thousands)
 
<TABLE>
<CAPTION>
                                     Additions  Additions
                          Balance at Charged to Charged to Deductions Balance at
                          Beginning  Costs and    Other       from      End of
                           of Year    Expenses   Accounts   Reserve      Year
                          ---------- ---------- ---------- ---------- ----------
<S>                       <C>        <C>        <C>        <C>        <C>
Year ending December 31,
   1996
   Allowance for
   doubtful accounts....    $   94     $  715      $--       $  409     $  400
                            ------     ------      ----      ------     ------
                            $   94     $  715      $--       $  409     $  400
                            ======     ======      ====      ======     ======
Year ending December 31,
   1997
   Allowance for
   doubtful accounts....    $  400     $1,180      $--       $  580     $1,000
                            ------     ------      ----      ------     ------
                            $  400     $1,180      $--       $  580     $1,000
                            ======     ======      ====      ======     ======
Year ending December 31,
   1998
   Allowance for
   doubtful accounts....    $1,000     $1,409      $--       $1,176     $1,233
                            ------     ------      ----      ------     ------
                            $1,000     $1,409      $--       $1,176     $1,233
                            ======     ======      ====      ======     ======
</TABLE>
 
                                      F-19
<PAGE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
  No dealer, salesperson or any other person has been authorized to give any
information or to make any representations other than those contained in this
Prospectus in connection with the offer contained herein, and, if given or
made, such information or representations must not be relied upon as having
been authorized by the Company or by any of the Underwriters. This Prospectus
does not constitute an offer of any securities other than those to which it
relates, or an offer to sell, or a solicitation of an offer to buy, those se-
curities to which it relates in any state to any person to whom it is not law-
ful to make such offer in such state. The delivery of this Prospectus at any
time does not imply that the information herein is correct as of any time sub-
sequent to its date.
 
                                  -----------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                          Page
                                                                          ----
<S>                                                                       <C>
Prospectus Summary.......................................................   3
Risk Factors.............................................................   8
Certain Transactions Prior to the Offering...............................  13
Use of Proceeds..........................................................  15
Dividend Policy..........................................................  15
Capitalization...........................................................  16
Dilution.................................................................  17
Selected Financial Data..................................................  18
Management's Discussion and Analysis of Financial Condition and Results
 of Operation............................................................  20
Business.................................................................  26
Management...............................................................  38
Certain Relationships and Transactions...................................  50
Principal and Selling Stockholders.......................................  53
Description of Capital Stock.............................................  54
Shares Eligible for Future Sale..........................................  56
Underwriting.............................................................  57
Certain United States Federal Income Tax Considerations for Non-United
 States Holders..........................................................  61
Legal Matters............................................................  63
Experts..................................................................  63
Additional Information...................................................  63
Index to Financial Statements............................................ F-1
</TABLE>
 
  Until     , 1999 (25 days after the commencement of the Offering) all
dealers effecting transactions in the Common Stock, whether or not
participating in this distribution, may be required to deliver a Prospectus.
This is in addition to the obligation of dealers to deliver a Prospectus when
acting as Underwriters and with respect to their unsold allotments or
subscriptions.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                               8,187,200 Shares
 
                     The Corporate Executive Board Company
 
                                 Common Stock
 
 
                      [LOGO OF CORPORATE EXECUTIVE BOARD]
 
 
                                    -------
 
                                  PROSPECTUS
 
                                        , 1999
                                    -------
 
                             Salomon Smith Barney
                         Donaldson, Lufkin & Jenrette
                    Friedman, Billings, Ramsey & Co., Inc.
                             Goldman, Sachs & Co.
 
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+Information contained herein is subject to completion or amendment. A         +
+registration statement relating to these securities has been filed with the   +
+Securities and Exchange Commission. These securities may not be sold nor may  +
+offers to buy be accepted prior to the time the registration statement        +
+becomes effective. This prospectus shall not constitute an offer to sell or   +
+the solicitation of an offer to buy nor shall there be any sale of these      +
+securities in any State in which such offer, solicitation or sale would be    +
+unlawful prior to registration or qualification under the securities laws of  +
+any such State.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                 SUBJECT TO COMPLETION, DATED FEBRUARY 12, 1999
 
PROSPECTUS
                                8,187,200 Shares
 
 
                [LOGO OF CORPORATE EXECUTIVE BOARD APPEARS HERE]
                     The Corporate Executive Board Company
                                  Common Stock
 
                                   --------
  All of the shares of common stock, par value $.01 per share (the "Common
Stock"), of The Corporate Executive Board Company, a Delaware corporation (the
"Corporate Executive Board" or the "Company"), offered hereby are being offered
by the Selling Stockholders named herein under "Principal and Selling
Stockholders." The Company will not receive any of the proceeds from the sale
of shares of Common Stock by the Selling Stockholders. See "Use of Proceeds."
 
  Of the 8,187,200 shares of Common Stock being offered hereby, a total of
1,637,440 shares are being offered hereby in an international offering outside
the United States and Canada (the "International Offering") by the managers
named herein under "Underwriting" (the "Managers") and a total of 6,549,760
shares are being offered by the underwriters of the U.S. Offering named herein
under "Underwriting" (the "U.S. Underwriters" and, together with the Managers,
the "Underwriters") in a concurrent offering in the United States and Canada
(the "U.S. Offering" and, together with the International Offering, the
"Offering"). See "Underwriting."
 
  Up to 409,360 shares of Common Stock are being reserved for sale to certain
employees and directors of the Company, and their friends and family members at
the initial public offering price. See "Underwriting."
 
  There is currently no public market for the Common Stock. It is currently
estimated that the initial public offering price per share of Common Stock will
be between $17 and $19. See "Underwriting" for a discussion of the factors to
be considered in determining the initial public offering price. The Common
Stock has been approved for listing on the Nasdaq National Market under the
symbol "EXBD."
  See "Risk Factors" beginning on page 8 for a discussion of material risks
that should be considered by prospective purchasers of the Common Stock offered
hereby.
                                   --------
THESE SECURITIES  HAVE NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE  COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS  THE SECURITIES
 AND EXCHANGE  COMMISSION OR ANY  STATE SECURITIES COMMISSION  PASSED UPON THE
 ACCURACY OR  ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION  TO THE CONTRARY
  IS A CRIMINAL OFFENSE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                      Underwriting    Proceeds to
             Price   Discounts and      Selling
           to Public Commissions(1) Stockholders(2)
- ---------------------------------------------------
<S>        <C>       <C>            <C>
Per Share    $            $              $
- ---------------------------------------------------
Total(3)     $           $               $
</TABLE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
(1) For information regarding indemnification of the Managers, see
    "Underwriting."
(2) The expenses of the Offering, other than Underwriting Discounts and
    Commissions, estimated to be approximately $2.2 million, will be paid by
    the Company.
(3) David G. Bradley, the sole beneficial owner of the Company's outstanding
    stock (the "Principal Selling Stockholder"), has granted the Underwriters
    30-day options to purchase up to 1,228,080 additional shares of Common
    Stock solely to cover over-allotments, if any. See "Underwriting." If such
    options are exercised in full, the total Price to Public, Underwriting
    Discounts and Commissions and Proceeds to Selling Stockholders will be
    $   , $   , and $    respectively.
                                   --------
  The shares of Common Stock are being offered by the several Managers named
herein, subject to prior sale, when, as and if accepted by them and subject to
certain conditions. It is expected that the shares of Common Stock offered
hereby will be made available for delivery on or about    , 1999, at the office
of Salomon Smith Barney Inc., 333 West 34th Street, New York, New York 10001,
or through the facilities of the Depository Trust Company.
 
                                   --------
Salomon Smith Barney International
       Donaldson, Lufkin & Jenrette
            Friedman, Billings, Ramsey International, Ltd.
                                                     Goldman Sachs International
 
      , 1999
<PAGE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
  No dealer, salesperson or any other person has been authorized to give any
information or to make any representations other than those contained in this
Prospectus in connection with the offer contained herein, and, if given or
made, such information or representations must not be relied upon as having
been authorized by the Company or by any of the Underwriters. This Prospectus
does not constitute an offer of any securities other than those to which it
relates, or an offer to sell, or a solicitation of an offer to buy, those se-
curities to which it relates in any state to any person to whom it is not law-
ful to make such offer in such state. The delivery of this Prospectus at any
time does not imply that the information herein is correct as of any time sub-
sequent to its date.
 
                                  -----------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                          Page
                                                                          ----
<S>                                                                       <C>
Prospectus Summary.......................................................   3
Risk Factors.............................................................   8
Certain Transactions Prior to the Offering...............................  13
Use of Proceeds..........................................................  15
Dividend Policy..........................................................  15
Capitalization...........................................................  16
Dilution.................................................................  17
Selected Financial Data..................................................  18
Management's Discussion and Analysis of Financial Condition and Results
 of Operation............................................................  20
Business.................................................................  26
Management...............................................................  38
Certain Relationships and Transactions...................................  50
Principal and Selling Stockholders.......................................  53
Description of Capital Stock.............................................  54
Shares Eligible for Future Sale..........................................  56
Underwriting.............................................................  57
Certain United States Federal Income Tax Considerations for Non-United
 States Holders..........................................................  61
Legal Matters............................................................  63
Experts..................................................................  63
Additional Information...................................................  63
Index to Financial Statements............................................ F-1
</TABLE>
 
  Until     , 1999 (25 days after the commencement of the Offering) all
dealers effecting transactions in the Common Stock, whether or not
participating in this distribution, may be required to deliver a Prospectus.
This is in addition to the obligation of dealers to deliver a Prospectus when
acting as Underwriters and with respect to their unsold allotments or
subscriptions.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                               8,187,200 Shares
 
                     The Corporate Executive Board Company
 
                                 Common Stock
 
 
               [LOGO OF CORPORATE EXECUTIVE BOARD APPEARS HERE]
 
 
                                    -------
 
                                  PROSPECTUS
 
                                        , 1999
                                    -------
 
                             Salomon Smith Barney
                                 International
                         Donaldson, Lufkin & Jenrette
                Friedman, Billings, Ramsey International, Ltd.
                          Goldman Sachs International
 
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
Item 13. Other Expenses of Issuance and Distribution.
 
  The estimated expenses in connection with the Offering (all of which will be
paid by the Company and will be treated as a distribution to the Principal
Selling Stockholder), are as follows:
 
<TABLE>
<CAPTION>
   Expenses                                                             Amount
   --------                                                            ---------
   <S>                                                                 <C>
   Securities and Exchange Commission registration fee................    57,525
   NASD filing fee....................................................    20,000
   Nasdaq listing fees................................................    95,000
   Printing expenses..................................................   350,000
   Accounting fees and expenses.......................................   450,000
   Legal fees and expenses............................................   900,000
   Blue Sky fees and expenses.........................................     5,000
   Transfer agent's fees and expenses.................................    20,000
   Miscellaneous......................................................   300,000
                                                                       ---------
     Total............................................................ 2,197,525
                                                                       =========
</TABLE>
 
Item 14. Indemnification Of Directors And Officers.
 
  Section 145(a) of the Delaware General Corporation Law provides that a
Delaware corporation may indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action,
suit or proceeding, whether civil, criminal, administrative or investigative
(other than an action by or in the right of the corporation) by reason of the
fact that such person is or was a director, officer, employee or agent of the
corporation, or is or was serving at the request of the corporation as a
director, officer, employee or agent of another corporation or enterprise,
against expenses (including attorneys' fees), judgments, fines and amounts
paid in settlement actually and reasonably incurred by such person in
connection with such action, suit or proceeding if he or she acted in good
faith and in a manner he or she reasonably believed to be in or not opposed to
the best interests of the corporation, and, with respect to any criminal
action or proceeding, had no cause to believe his or her conduct was unlawful.
 
  Section 145(b) of the Delaware General Corporation Law provides that a
Delaware corporation may indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action
or suit by or in the right of the corporation to procure a judgment in its
favor by reason of the fact that such person acted in any of the capacities
set forth above, against expenses (including attorneys' fees) actually and
reasonably incurred by such person in connection with the defense or
settlement of such action or suit if he or she acted under similar standards,
except that no indemnification may be made in respect of any claim, issue or
matter as to which such person shall have been adjudged to be liable to the
corporation unless and only to the extent that the court in which such action
or suit was brought shall determine that, despite the adjudication of
liability but in view of all the circumstances of the case, such person is
fairly and reasonably entitled to be indemnified for such expenses which the
court shall deem proper.
 
  Section 145 of the Delaware General Corporation Law further provides that
(i) to the extent that a former or present director or officer of a
corporation has been successful in the defense of any action, suit or
proceeding referred to in subsections (a) and (b) or in the defense of any
claim, issue or matter therein, such person shall be indemnified against
expenses (including attorneys' fees) actually and reasonably incurred by him
or her in connection therewith; (ii) indemnification provided for by Section
145 shall not be deemed exclusive of any other rights to which the indemnified
party may be entitled; and (iii) the corporation may purchase and maintain
insurance on behalf of any present or former director, officer, employee or
agent of the corporation or any person who at the request of the corporation
was serving in such capacity for another entity against any liability asserted
 
                                     II-1
<PAGE>
 
against such person and incurred by him or her in any such capacity or arising
out of his or her status as such, whether or not the corporation would have
the power to indemnify him or her against such liabilities under Section 145.
 
  As permitted by Section 102(b)(7) of the Delaware General Corporation Law,
the Company's Certificate of Incorporation provides that a director shall not
be liable to the Company or its stockholders for monetary damages for breach
of fiduciary duty as a director. However, such provision does not eliminate or
limit the liability of a director for acts or omissions not in good faith or
for breaching his or her duty of loyalty, engaging in intentional misconduct
or knowingly violating a law, paying a dividend or approving a stock
repurchase which was illegal, or obtaining an improper personal benefit. In
addition, the Bylaws of the Company contain provisions indemnifying the
directors, officers, employees and agents of the Company to the fullest extent
permitted by the Delaware General Corporation Law. Any indemnification under
the Company's Bylaws is subject to a prior determination by a majority of the
directors of the Company who are not party to the underlying action that the
person seeking indemnification has met the applicable standard of conduct.
 
  Under the provisions of the Company's Bylaws, expenses incurred by an
officer or director in defending a civil or criminal suit or proceeding shall
be paid by the Company in advance of the final disposition of such action,
suit or proceeding upon receipt of an undertaking by or on behalf of the
person seeking indemnification to repay such amounts if it is ultimately
determined that he or she is not entitled to be indemnified.
 
  The Company may, to the fullest extent permitted by the Delaware General
Corporation Law, purchase and maintain insurance on behalf of any officer,
director, employee or agent against any liability which may be asserted
against such person.
 
  The Company anticipates obtaining a policy of directors' and officers'
liability insurance prior to the closing of the Offering.
 
Item 15. Recent Sales of Unregistered Securities
 
  Within the three years preceding the offering contemplated hereby (the
"Offering"), the Registrant has not issued or sold securities that were not
registered under the Securities Act of 1933, except as follows:
 
  (a) pursuant to the exercise of options under the Registrant's Stock-Based
  Incentive Compensation Plan, which will be exercised upon the effectiveness
  of the registration statement, the Registrant will sell 516,000 shares of
  its Class B Non-Voting Common Stock to Jeffrey D. Zients for an aggregate
  of $480,000;
 
  (b) pursuant to the exercise of options under the Registrant's Stock-Based
  Incentive Compensation Plan, which will be exercised upon the effectiveness
  of the registration statement, the Registrant will sell 168,560 shares of
  its Class B Non-Voting Common Stock to Michael A. D'Amato for an aggregate
  of $156,800; and
 
  (c) the Registrant has awarded to employees and directors options to
  purchase 5,527,920 shares of its Class B Non-Voting Common Stock, none of
  which have become exercisable; except, after the exercise of the options
  set forth in paragraphs (a) and (b) above, (i) options held by Mr. Zients
  for 516,000 shares of Class B Non-Voting Common Stock, exercisable in whole
  or in part at $1.02 per share (giving effect to the stock split in the form
  of a dividend effected on the effective date of the registration statement
  (the "Stock Split")), and (ii) options held by Mr. D'Amato for 349,160
  shares of Class B Non-Voting Common Stock, exercisable in whole or in part
  at $2.46 per share giving effect to the Stock Split). See Note 9 of Notes
  to Financial Statements.
 
  The transactions set forth in paragraphs (a) and (b) above were undertaken
in reliance upon the exemptions from the registration requirements of the
Securities Act of 1933 afforded by Rule 701 promulgated thereunder, as
transactions pursuant to the compensatory benefit plans and contracts relating
to compensation. With respect to the transactions set forth in paragraph (c)
above, the options awarded were part of a compensatory arrangement and did not
constitute a "sale."
 
 
                                     II-2
<PAGE>
 
  On October 31, 1997, the Registrant issued and distributed to David G.
Bradley 726,000 shares of its Class B Non-Voting Common Stock and 1,000 shares
of its Class A Voting Common Stock, representing all of its issued and
outstanding shares of capital stock at such time. These shares were
distributed to Mr. Bradley as part of the spin-off of the Registrant from The
Advisory Board Company, which was at such time, and currently is, wholly owned
by Mr. Bradley. This transaction was not a "sale" because it fits within the
requirements set forth in Staff Legal Bulletin No. 4 (September 16, 1997).
 
  Upon the transfer of shares of Class B Non-Voting Common Stock or Class A
Voting Common Stock to the Underwriters pursuant to the Offering, all shares
of capital stock of the Registrant automatically will be converted into shares
of Common Stock.
 
Item 16. Exhibits and Financial Statement Schedules
 
  (a) Exhibits
<TABLE>   
     <C>      <S>
       1.1    --Form of U.S. Underwriting Agreement.
       1.2    --Form of International Underwriting Agreement.
       3.1    --Second Amended and Restated Certificate of Incorporation of the
                 Company.
       3.1.1  --Second Amended and Restated Certificate of Incorporation of the
                 Company.*****
       3.2    --Amended and Restated Bylaws of the Company.
       4.1    --Specimen Common Stock Certificate.**
       5.1    --Opinion of Gibson, Dunn & Crutcher LLP.
      10.1    --Employment Agreement, dated January 21, 1999, between the
                 Company and James J. McGonigle.**
      10.2    --Employment Agreement, effective as of April 15, 1998, between
                 the Company and Harold L. Siebert.**
      10.3    --Employment Agreement, dated November 1, 1998, between the
                 Company and Clay M. Whitson.**
      10.4    --Stock Option Agreement Pursuant to The Corporate Advisory Board
                 Company Stock-Based Incentive Compensation Plan, effective as
                 of October 31, 1997, between the Company and James J.
                 McGonigle, as amended on January 21, 1999.**
      10.5    --Stock Option Agreement Pursuant to The Corporate Executive
                 Board Company Stock-Based Incentive Compensation Plan,
                 effective as of April 15, 1998, between the Company and Harold
                 L. Siebert.**
      10.6    --[Omitted]
      10.7    --Stock Option Agreement Pursuant to The Corporate Executive
                 Board Company Stock-Based Incentive Compensation Plan, dated
                 as of November 1, 1998, between the Company and Clay M.
                 Whitson.**
      10.8    --Stock Option Agreement #1 Pursuant to The Corporate Executive
                 Board Company Stock-Based Incentive Compensation Plan,
                 effective as of October 31, 1997, between the Company and
                 Michael A. D'Amato.**
      10.9    --Stock Option Agreement #2 Pursuant to The Corporate Executive
                 Board Company Stock-Based Incentive Compensation Plan,
                 effective as of October 31, 1997, between the Company and
                 Michael A. D'Amato.**
      10.10   --Stock Option Agreement #1 Pursuant to The Corporate Executive
                 Board Company Stock-Based Incentive Compensation Plan,
                 effective as of October 31, 1997, between the Company and
                 Jeffrey D. Zients.**
      10.11   --Stock Option Agreement #2 Pursuant to The Corporate Executive
                 Board Company Stock-Based Incentive Compensation Plan,
                 effective as of October 31, 1997, between the Company and
                 Jeffrey D. Zients.**
      10.12   --Stock Option Agreement Pursuant to The Corporate Executive
                 Board Company Stock-Based Incentive Compensation Plan,
                 effective as of June 1, 1998, between the Company and Sally
                 Chang.**
      10.13   --Stock Option Agreement Pursuant to The Corporate Executive
                 Board Company Stock-Based Incentive Compensation Plan,
                 effective as of October 31, 1997, between the Company and
                 Derek C. van Bever, as amended on July 21, 1998.**
</TABLE>    
 
                                     II-3
<PAGE>
 
<TABLE>
     <C>     <S>
     10.14   --Form of Stock Option Agreement Pursuant to The Corporate
                Advisory Board Company Stock-Based Incentive Compensation Plan,
                including form of amendment.**
     10.15   --Agreement Concerning Exclusive Services, Confidential
                Information, Business Opportunities, Non-Competition, Non-
                Solicitation and Work Product, dated January 21, 1999, between
                the Company and James J. McGonigle.**
     10.16   --Agreement Concerning Exclusive Services, Confidential
                Information, Business Opportunities, Non-Competition, Non-
                Solicitation and Work Product, effective as of April 15, 1998,
                between the Company and Harold L. Siebert.**
     10.17   --Agreement Concerning Exclusive Services, Confidential
                Information, Business Opportunities, Non-Competition, Non-
                Solicitation and Work Product, dated November 1, 1998, between
                the Company and Clay M. Whitson.**
     10.18   --Agreement Concerning Exclusive Services, Confidential
                Information, Business Opportunities, Non-Competition, Non-
                Solicitation and Work Product, dated October 30, 1997, between
                the Company and Michael A. D'Amato.**
     10.19   --Agreement Concerning Exclusive Services, Confidential
                Information, Business Opportunities, Non-Competition, Non-
                Solicitation and Work Product, dated October 30, 1997, between
                the Company and Jeffrey D. Zients.**
     10.20   --Form of Agreement Concerning Exclusive Services, Confidential
                Information, Business Opportunities, Non-Competition, Non-
                Solicitation and Work Product.**
     10.21   --The Corporate Executive Board Company Stock-Based Incentive
                Compensation Plan, adopted on October 31, 1997, as amended and
                restated on     , 1998.**
     10.21.1 --The Corporate Executive Board Company Stock-Based Incentive
                Compensation Plan, adopted on October 31, 1997, as amended and
                restated in February 1999.
     10.22   --Directors' Stock Plan.**
     10.22.1 --Amended Directors' Stock Plan and Standard Terms and Conditions
                for Director Non-Qualified Stock Options.**
     10.23   --1998 Stock Option Plan.**
     10.23.1 --1999 Stock Option Plan and Standard Terms and Conditions for
                1999 Stock Option Plan Incentive Stock Options.
     10.24   --Cross-Indemnification Agreement, dated as of January 21, 1999,
                between David G. Bradley and the Company.**
     10.25   --Promissory Note, dated October 31, 1998, between David G.
                Bradley and the Company.***
     10.26   --Security Agreement, dated October 31, 1997, between David G.
                Bradley and the Company.****
     10.27   --Letter Agreement, dated January 18, 1999, between the Company
                and David G. Bradley with respect to the repayment of $6.5
                million Promissory Note.**
     10.28   --Administrative Services Agreement, dated as of October 31, 1997,
                as amended and restated on July 21, 1998, between The Advisory
                Board Company and the Company.**
     10.29   --Member Contracts Agreement, dated as of October 31, 1997,
                between The Advisory Board Company and the Company.**
     10.30   --Vendor Contracts Agreement, dated as of October 31, 1997, as
                amended and restated on July 21, 1998, between The Advisory
                Board Company and the Company.**
     10.31   --Non-Competition Agreement, effective as of January 1, 1999,
                among The Advisory Board Company, the Company and David G.
                Bradley.**
     10.32   --Sublease Agreement, dated as of October 31, 1997, as amended and
                restated on July 21, 1998, between The Advisory Board and the
                Company.**
     10.33   --Distribution Agreement, dated as of October 31, 1997, between
                the Company and The Advisory Board Company.**
     10.34   --Agreement of Lease, dated June 25, 1998, between the Company and
                The George Washington University.**
</TABLE>
 
                                      II-4
<PAGE>
 
<TABLE>
     <C>   <S>
     10.35 --Registration Rights Agreement, dated January 22, 1999, between the
              Company and David G. Bradley.**
     10.36 --License Agreement, effective as of October 31, 1997, between the
              Company and The Advisory Board Company.**
     10.37 --Letter agreement regarding the special bonus plan.**
     10.38 --Amended and Restated "Liquid Markets" Agreement, dated August 20,
              1997, between the Company and Derek C. van Bever, as amended on
              December 28, 1998.**
     10.39 --Letter to Michael A. D'Amato from the Chairman of the Company re
              Accelerated Vesting of Options.**
     10.40 --Clarification Letter to Michael A. D'Amato from the Company re
              Stock Option Agreements.**
     10.41 --Letter to Jeffrey Zients from David Bradley re Accelerated Vesting
              of Options.**
     10.42 --Clarification Letter to Jeffrey Zients from the Company re Stock
              Option Agreements.**
     10.43 --Term Sheet for Director Non-Qualified Stock Options between Robert
              C. Hall and the Company.**
     10.44 --Term Sheet for Director Non-Qualified Stock Options between David
              W. Kenny and the Company.**
     10.45 --Term Sheet for Director Non-Qualified Stock Options between
              Stephen G. Pagliuca and Company.**
     10.46 --Term Sheet for Director Non-Qualified Stock Options between
              Jeffrey D. Zients and the Company.**
     10.47 --Term Sheet for Director Non-Qualified Stock Options between
              Michael A. D'Amato and the Company, as amended on January 27,
              1999.**
     21.1  --List of Subsidiaries of the Registrant.**
     23.1  --Consent of Gibson, Dunn & Crutcher LLP (included in its opinion
              filed as Exhibit 5.1).
     23.2  --Consent of Arthur Andersen LLP.
     24.1  --Power of Attorney (included in the signature page in Part II of
              the initial filing of
              Registration Statement).**
     27    --Financial Data Schedule.
     99.1  --Consent of a Person to Become a Director for Robert C. Hall.**
     99.2  --Consent of a Person to Become a Director for David W. Kenny.**
     99.3  --Consent of a Person to Become a Director for Stephen G.
              Pagliuca.**
</TABLE>
- --------
**Previously filed.
***Previously filed as Exhibit 10.8.
****Previously filed as Exhibit 10.9.
   
*****This Exhibit replaces in its entirety Exhibit 3.1.     
 
  (b) Financial Statement Schedules
 
  The financial statement schedules for which provision is made in the
applicable accounting regulations of the Commission are either not required
under the related instructions or are inapplicable, and therefore have been
omitted, except for Schedule II--Valuation and Qualifying Accounts which is
provided on page F-21.
 
Item 17. Undertakings
 
  (a) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being
 
                                     II-5
<PAGE>
 
registered, the registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Act and will be governed by the
final adjudication of such issue.
 
  (b) The undersigned registrant hereby undertakes:
 
    (1) that for purposes of determining any liability under the Securities
  Act of 1933, the information omitted from the form of prospectus filed as
  part of this registration statement in reliance upon Rule 430A and
  contained in a form of prospectus filed by the registrant pursuant to Rule
  424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be
  part of this registration statement as of the time it was declared
  effective;
 
    (2) that for the purpose of determining any liability under the
  Securities Act of 1933, each post-effective amendment that contains a form
  of prospectus shall be deemed to be a new registration statement relating
  to the securities offered therein, and the offering of such securities at
  that time shall be deemed to be the initial bona fide offering thereof; and
 
    (3) to provide to the underwriters at the closing specified in the
  underwriting agreements, certificates in such denominations and registered
  in such names as required by the underwriters to permit prompt delivery to
  each purchaser.
 
                                     II-6
<PAGE>
 
                       SIGNATURES AND POWER OF ATTORNEY
   
  Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Amendment No. 4 to the Registration Statement to be
signed on its behalf by the undersigned, thereunto duly authorized, in the
District of Columbia, on February 19, 1999.     
 
                                          The Corporate Executive Board
 
                                                  /s/ James J. McGonigle
                                          By___________________________________
                                                  Chief Executive Officer
   
  Pursuant to the requirements of the Securities Act of 1933, this Amendment
No. 4 to the Registration Statement has been signed by the following persons
in the capacities indicated on the dates indicated.     
 
<TABLE>
<CAPTION>
              Signature                          Title                   Date
              ---------                          -----                   ----
 
<S>                                    <C>                        <C>
        /s/ James J. McGonigle         President, Chief Executive  February 19, 1999
______________________________________  Officer and Director
          James J. McGonigle            (Principal Executive
                                        Officer)
 
         /s/ Clay M. Whitson           Chief Financial Officer     February 19, 1999
______________________________________  (Principal Financial and
           Clay M. Whitson              Principle Accounting
                                        Officer)
 
        /s/ Jeffrey D. Zients          Director                    February 19, 1999
______________________________________
          Jeffrey D. Zients
 
        /s/ Harold L. Siebert          Director                    February 19, 1999
______________________________________
          Harold L. Siebert
        /s/ Michael A. D'Amato         Director                    February 19, 1999
______________________________________
          Michael A. D'Amato
</TABLE>
 
                                     II-7
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>   
<CAPTION>
  Exhibit
    No.
  -------
 <C>       <S>
    1.1    --Form of U.S. Underwriting Agreement.
    1.2    --Form of International Underwriting Agreement.
    3.1    --Second Amended and Restated Certificate of Incorporation of the
              Company.
  3.1.1    --Second Amended and Restated Certificate of Incorporation of the
              Company.*****
    3.2    --Amended and Restated Bylaws of the Company.
    4.1    --Specimen Common Stock Certificate.**
    5.1    --Opinion of Gibson, Dunn & Crutcher LLP.
   10.1    --Employment Agreement, dated January 21, 1999, between the Company
              and James J. McGonigle.**
   10.2    --Employment Agreement, effective as of April 15, 1998, between the
              Company and Harold L. Siebert.**
   10.3    --Employment Agreement, dated November 1, 1998, between the Company
              and Clay M. Whitson.**
   10.4    --Stock Option Agreement Pursuant to The Corporate Advisory Board
              Company Stock-Based Incentive Compensation Plan, effective as of
              October 31, 1997, between the Company and James J. McGonigle, as
              amended on January 21, 1999.**
   10.5    --Stock Option Agreement Pursuant to The Corporate Executive Board
              Company Stock-Based Incentive Compensation Plan, effective as of
              April 15, 1998, between the Company and Harold L. Siebert.**
   10.6    --[Omitted]
   10.7    --Stock Option Agreement Pursuant to The Corporate Executive Board
              Company Stock-Based Incentive Compensation Plan, dated as of
              November 1, 1998, between the Company and Clay M. Whitson.**
   10.8    --Stock Option Agreement #1 Pursuant to The Corporate Executive
              Board Company Stock-Based Incentive Compensation Plan, effective
              as of October 31, 1997, between the Company and Michael A.
              D'Amato.**
   10.9    --Stock Option Agreement #2 Pursuant to The Corporate Executive
              Board Company Stock-Based Incentive Compensation Plan, effective
              as of October 31, 1997, between the Company and Michael A.
              D'Amato.**
   10.10   --Stock Option Agreement #1 Pursuant to The Corporate Executive
              Board Company Stock-Based Incentive Compensation Plan, effective
              as of October 31, 1997, between the Company and Jeffrey D.
              Zients.**
   10.11   --Stock Option Agreement #2 Pursuant to The Corporate Executive
              Board Company Stock-Based Incentive Compensation Plan, effective
              as of October 31, 1997, between the Company and Jeffrey D.
              Zients.**
   10.12   --Stock Option Agreement Pursuant to The Corporate Executive Board
              Company Stock-Based Incentive Compensation Plan, effective as of
              June 1, 1998, between the Company and Sally Chang.**
   10.13   --Stock Option Agreement Pursuant to The Corporate Executive Board
              Company Stock-Based Incentive Compensation Plan, effective as of
              October 31, 1997, between the Company and Derek C. van Bever, as
              amended on July 21, 1998.**
   10.14   --Form of Stock Option Agreement Pursuant to The Corporate Advisory
              Board Company Stock-Based Incentive Compensation Plan, including
              form of amendment.**
   10.15   --Agreement Concerning Exclusive Services, Confidential Information,
              Business Opportunities, Non-Competition, Non-Solicitation and
              Work Product, dated January 21, 1999, between the Company and
              James J. McGonigle.**
   10.16   --Agreement Concerning Exclusive Services, Confidential Information,
              Business Opportunities, Non-Competition, Non-Solicitation and
              Work Product, effective as of April 15, 1998, between the Company
              and Harold L. Siebert.**
</TABLE>    
<PAGE>
 
<TABLE>
<CAPTION>
 Exhibit
   No.
 -------
 <C>     <S>
 10.17   --Agreement Concerning Exclusive Services, Confidential Information,
            Business Opportunities, Non-Competition, Non-Solicitation and Work
            Product, dated November 1, 1998, between the Company and Clay M.
            Whitson.**
 10.18   --Agreement Concerning Exclusive Services, Confidential Information,
            Business Opportunities, Non-Competition, Non-Solicitation and Work
            Product, dated October 30, 1997, between the Company and Michael A.
            D'Amato.**
 10.19   --Agreement Concerning Exclusive Services, Confidential Information,
            Business Opportunities, Non-Competition, Non-Solicitation and Work
            Product, dated October 30, 1997, between the Company and Jeffrey D.
            Zients.**
 10.20   --Form of Agreement Concerning Exclusive Services, Confidential
            Information, Business Opportunities, Non-Competition, Non-
            Solicitation and Work Product.**
 10.21   --The Corporate Executive Board Company Stock-Based Incentive
            Compensation Plan, adopted on October 31, 1997, as amended and
            restated on     , 1998.**
 10.21.1 --The Corporate Executive Board Company Stock-Based Incentive
            Compensation Plan, adopted on October 31, 1997, as amended and
            restated in February 1999.
 10.22   --Directors' Stock Plan.**
 10.22.1 --Amended Directors' Stock Plan and Standard Terms and Conditions for
            Director Non-Qualified Stock Options.**
 10.23   --1998 Stock Option Plan.**
 10.23.1 --1999 Stock Option Plan and Standard Terms and Conditions for 1999
            Stock Option Plan Incentive Stock Options.
 10.24   --Cross-Indemnification Agreement, dated as of January 21, 1999,
            between David G. Bradley and the Company.**
 10.25   --Promissory Note, dated October 31, 1998, between David G. Bradley
            and the Company.***
 10.26   --Security Agreement, dated October 31, 1997, between David G. Bradley
            and the Company.****
 10.27   --Letter Agreement, dated January 18, 1999, between the Company and
            David G. Bradley with respect to the repayment of $6.5 million
            Promissory Note.**
 10.28   --Administrative Services Agreement, dated as of October 31, 1997, as
            amended and restated on July 21, 1998, between The Advisory Board
            Company and the Company.**
 10.29   --Member Contracts Agreement, dated as of October 31, 1997, between
            The Advisory Board Company and the Company.**
 10.30   --Vendor Contracts Agreement, dated as of October 31, 1997, as amended
            and restated on July 21, 1998, between The Advisory Board Company
            and the Company.**
 10.31   --Non-Competition Agreement, effective as of January 1, 1999, among
            The Advisory Board Company, the Company and David G. Bradley.**
 10.32   --Sublease Agreement, dated as of October 31, 1997, as amended and
            restated on July 21, 1998, between The Advisory Board and the
            Company.**
 10.33   --Distribution Agreement, dated as of October 31, 1997, between the
            Company and The Advisory Board Company.**
 10.34   --Agreement of Lease, dated June 25, 1998, between the Company and The
            George Washington University.**
 10.35   --Registration Rights Agreement, dated January 22, 1999, between the
            Company and David G. Bradley.**
 10.36   --License Agreement, effective as of October 31, 1997, between the
            Company and The Advisory Board Company.**
 10.37   --Letter agreement regarding the special bonus plan.**
 10.38   --Amended and Restated "Liquid Markets" Agreement, dated August 20,
            1997, between the Company and Derek C. van Bever, as amended on
            December 28, 1998.**
 10.39   --Letter to Michael A. D'Amato from the Chairman of the Company re
            Accelerated Vesting of Options.**
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
 Exhibit
   No.
 -------
 <C>     <S>
 10.40   --Clarification Letter to Michael A. D'Amato from the Company re Stock
            Option Agreements.**
 10.41   --Letter to Jeffrey Zients from David Bradley re Accelerated Vesting
            of Options.**
 10.42   --Clarification Letter to Jeffrey Zients from the Company re Stock
            Option Agreements.**
 10.43   --Term Sheet for Director Non-Qualified Stock Options between Robert
            C. Hall and the Company.**
 10.44   --Term Sheet for Director Non-Qualified Stock Options between David W.
            Kenny and the Company.**
 10.45   --Term Sheet for Director Non-Qualified Stock Options between Stephen
            G. Pagliuca and Company.**
 10.46   --Term Sheet for Director Non-Qualified Stock Options between Jeffrey
            D. Zients and the Company.**
 10.47   --Term Sheet for Director Non-Qualified Stock Options between Michael
            A. D'Amato and the Company, as amended on January 27, 1999.**
 21.1    --List of Subsidiaries of the Registrant.**
 23.1    --Consent of Gibson, Dunn & Crutcher LLP (included in its opinion
            filed as Exhibit 5.1).
 23.2    --Consent of Arthur Andersen LLP.
 24.1    --Power of Attorney (included in the signature page in Part II of the
            initial filing of
            Registration Statement).**
 27      --Financial Data Schedule.
 99.1    --Consent of a Person to Become a Director for Robert C. Hall.**
 99.2    --Consent of a Person to Become a Director for David W. Kenny.**
 99.3    --Consent of a Person to Become a Director for Stephen G. Pagliuca.**
</TABLE>
- --------
**Previously filed.
***Previously filed as Exhibit 10.8.
****Previously filed as Exhibit 10.9.
   
***** This Exhibit replaces in its entirety Exhibit 3.1.     

<PAGE>
 
                                                                   Exhibit 3.1.1
               This Exhibit replaces in its entirety Exhibit 3.1

                          SECOND AMENDED AND RESTATED

                         CERTIFICATE OF INCORPORATION

                                      OF

                     THE CORPORATE EXECUTIVE BOARD COMPANY
                                        

     The undersigned, for the purpose of amending and restating the Certificate
of Incorporation of The Corporate Executive Board Company, a Delaware
corporation (the "Corporation"), does hereby certify that:

     (1) The name of the Corporation is The Corporate Executive Board Company.

     (2) The Corporation was originally incorporated under the name The
Corporate Advisory Board Company.  The date of filing of its original
Certificate of Incorporation with the Secretary of State of Delaware was
September 11, 1997.

     (3) This Second Amended and Restated Certificate of Incorporation was duly
adopted as of February 18, 1999 pursuant to Section 242 and Section 245 of the
Delaware General Corporation Law.

     (4) The Certificate of Incorporation of The Corporate Executive Board
Company is hereby amended and restated in its entirety as follows:

     FIRST:  Name.  The name of the corporation is The Corporate Executive Board
             ----                                                               
Company (the "Corporation").

     SECOND:  Registered Office and Registered Agent.  The address of the
              --------------------------------------                     
Corporation's registered office in the State of Delaware is 9 East Loockerman
Street, in the City of Dover 19901, County of Kent.  The name of the registered
agent of the Corporation at such address is National Registered Agents, Inc.

     THIRD:  Purpose.  The purpose for which the Corporation is organized is to
             -------                                                           
engage in any lawful act or activity for which corporations may be organized
under the General Corporation Law of the State of Delaware.

     FOURTH:  Capitalization.
              -------------- 

     The total number of shares of all classes of stock which the Corporation
shall have authority to issue is one hundred eighteen million, one hundred
eighty-eight thousand, nine hundred sixty (118,188,960), consisting of seventeen
thousand two hundred (17,200) shares of Class A Voting Common Stock ("Voting
Common Stock"), par value one cent ($0.01) per share, 
<PAGE>
 
thirteen million one hundred seventy-one thousand seven hundred sixty
(13,171,760) shares of Class B Non-Voting Common Stock ("Non-Voting Common
Stock"), par value one cent ($0.01) per share, five million (5,000,000) shares
of Preferred Stock, par value one cent ($0.01) per share (the "Preferred Stock")
and one hundred million (100,000,000) shares of Common Stock, par value one cent
($0.01) per share (the "Common Stock"). Pursuant to Section 243(b), following
the retirement of shares of Voting Common Stock and Non-Voting Common Stock, the
reissuance of Voting Common Stock and Non-Voting Common Stock is expressly
prohibited.

     The designations, preferences, qualifications, limitations, restrictions
and the special or relative rights granted to or imposed upon the Common Stock
and Preferred Stock of the Corporation are as follows:

     (a) Provisions Relating to the Common Stock
         ---------------------------------------

          (1)  Conversion.  Each share of the Voting Common Stock and each share
     of the Non-Voting Common Stock shall automatically convert into one share
     of Common Stock without the requirement of any further action upon the
     transfer of any shares of Non-Voting Common Stock or Voting Common Stock to
     one or more underwriters pursuant to one or more underwriting agreements in
     connection with a public offering that is subject to an effective
     registration statement under the Securities Act of 1933, as amended (the
     "Securities Act") (the "Conversion").

          (2)  Voting.  Except as otherwise expressly required by law or
               ------                                                   
     provided in this Second Amended and Restated Certificate of Incorporation,
     and subject to any voting rights provided to holders of Preferred Stock at
     any time outstanding, at each annual or special meeting of stockholders,
     each holder of record of shares of Common Stock on the relevant record date
     shall be entitled to cast one vote in person or by proxy for each share of
     the Common Stock standing in such holder's name on the stock transfer
     records of the Corporation.  There shall be no cumulative voting.  The
     number of authorized shares of Common Stock may be increased or decreased
     (but not below the number of shares thereof then outstanding) by the
     affirmative vote of the holders of a majority of the stock of the
     Corporation entitled to vote, irrespective of the provisions of Section
     242(b)(2) of the General Corporation Law of the State of Delaware.

          (3)  Dividends.  Subject to the rights of the holders of Preferred
               ---------                                                    
     Stock, and subject to any other provisions of this Second Amended and
     Restated Certificate of Incorporation, as it may be amended from time to
     time, holders of shares of Common Stock shall be entitled to receive such
     dividends and other distributions in cash, stock or property of the
     Corporation when, as and if declared thereon by the Board of Directors from
     time to time out of assets or funds of the Corporation legally available
     therefor.

          (4)  Liquidation, Dissolution, etc.  In the event of any liquidation,
               -----------------------------                                   
     dissolution or winding up (either voluntary or involuntary) of the
     Corporation, the holders of shares of Common Stock shall be entitled to
     receive the assets and funds of the Corporation available for distribution
     after payments to creditors and to the holders of any Preferred Stock of
     the Corporation that may at the time be outstanding, in proportion to the
     number of shares held by them.

                                       2
<PAGE>
 
          (5)  No Preemptive, Subscription or Conversion Rights.  No holder of
               ------------------------------------------------               
     shares of Common Stock shall be entitled to preemptive , subscription or
     conversion rights.

     (b) Provisions Relating to the Preferred Stock
         ------------------------------------------

         The Board of Directors is hereby expressly authorized to provide for
     the issuance of all or any shares of the Preferred Stock in one or more
     classes or series, and to fix for each such class or series such voting
     powers, full or limited, or no voting powers, and such designations,
     preferences and relative, participating, optional or other special rights
     and such qualifications, limitations or restrictions thereof, as shall be
     stated and expressed in the resolution or resolutions adopted by the Board
     of Directors providing for the issuance of such class or series, including,
     without limitation, the authority to provide that any such class or series
     may be (i) subject to redemption at such time or times and at such price or
     prices; (ii) entitled to receive dividends (which may be cumulative or non-
     cumulative) at such rates, on such conditions, and at such times, and
     payable in preference to, or in such relation to, the dividends payable on
     any other class or classes or any other series; (iii) entitled to such
     rights upon the dissolution of, or upon any distribution of the assets of,
     the Corporation; or (iv) convertible into, or exchangeable for, shares of
     any other class or classes of stock, or of any other series of the same or
     any other class or classes of stock, of the Corporation at such price or
     prices or at such rates of exchange and with such adjustments; all as may
     be stated in such resolution or resolutions.

     (c) Provisions Relating to Limitation on Stockholder Rights Plan
         ------------------------------------------------------------

          Notwithstanding any other powers set forth in this Second Amended and
     Restated Certificate of Incorporation, the Board of Directors shall not
     adopt a stockholders "rights plan" (which for this purpose shall mean any
     arrangement pursuant to which, directly or indirectly, Common Stock or
     Preferred Stock purchase rights may be distributed to stockholders that
     provide all stockholders, other than persons who meet certain criteria
     specified in the arrangement, the right to purchase the Common Stock or
     Preferred Stock at less than the prevailing market price of the Common
     Stock or Preferred Stock), unless (i) such rights plan is ratified by the
     affirmative vote of a majority of the votes cast of the capital stock of
     the Corporation then outstanding and entitled to vote on the election of
     directors and present in person or represented by proxy at the next meeting
     (annual or special) of stockholders; (ii) by its terms, such rights plan
     expires within thirty-seven (37) months from the date of its adoption,
     unless extended by the affirmative vote of a majority of the voting power
     of the shares of capital stock of the Corporation then entitled to vote at
     an election of directors; and (iii) at any time the rights issued
     thereunder will be redeemed by the Corporation upon the affirmative vote of
     a majority of the voting power of the shares of capital stock of the
     Corporation then entitled to vote at an election of directors.

     FIFTH:  Amendment of Bylaws.  In furtherance and not in limitation of the
             -------------------                                              
powers conferred by statute, the Board of Directors is expressly authorized to
make, repeal, alter, amend and rescind the bylaws of the Corporation.

                                       3
<PAGE>
 
     SIXTH:  Powers of the Corporation and of its Directors and Stockholders.
             --------------------------------------------------------------- 

     The following provisions are inserted for the management of the business
and the conduct of the affairs of the Corporation, and for further definition,
limitation and regulation of the powers of the Corporation and of its directors
and stockholders:

     (a)  Management of the Corporation
          -----------------------------

          The business and affairs of the Corporation shall be managed by or
     under the direction of the Board of Directors.

     (b)  Directors
          ---------

          (1) The number of directors which shall constitute the whole Board of
     Directors shall be determined by resolution of a majority of the Board of
     Directors, but in no event shall be less than one.  The number of directors
     may be decreased at any time and from time to time by a majority of the
     directors then in office, but only to eliminate vacancies existing by
     reason of death, resignation, removal or expiration of the term of one or
     more directors.

          (2) A director shall hold office until the succeeding annual meeting
     (or special meeting in lieu thereof) and until his or her successor shall
     be elected and shall qualify, subject, however, to prior death,
     resignation, retirement, disqualification or removal from office.

          (3)  (i)  Directors may be removed with or without cause by a vote of
               the holders of shares entitled to vote at an election of
               directors at a duly called meeting of such holders, provided that
               no director shall be removed for cause except by the affirmative
               vote of not less than a majority of the voting power of the
               shares then entitled to vote at an election of directors.

               (ii)  Notwithstanding the foregoing, whenever the holders of any
               one or more classes or series of Preferred Stock issued by the
               Corporation shall have the right, voting separately by class or
               series, to elect directors at an annual or special meeting of
               stockholders, the election, term of office, filling of vacancies
               and other features of such directorships shall be governed by the
               terms of this Second Amended and Restated Certificate of
               Incorporation applicable thereto.

          (4) Any vacancy in the Board of Directors, however occurring,
     including a vacancy resulting from an enlargement of the Board, may be
     filled only by a vote of a majority of the directors then in office,
     although less than a quorum, or by a sole remaining director.  A director
     elected to fill a vacancy shall be elected for the unexpired term of his
     predecessor in office, if applicable, and a director chosen to fill a
     position resulting from an increase in the number of directors shall hold
     office until the next annual meeting (or special meeting in lieu thereof)
     and until his or her successor shall be elected and shall qualify, subject,
     however, to prior death, resignation, retirement, disqualification or
     removal from office.

                                       4
<PAGE>
 
          (5) Elections of directors need not be by written ballot unless the
     bylaws of the corporation shall so provide.

     (c)  Stockholders
          ------------

          (1) Stockholders of the Corporation may not act by written consent
     without a meeting.

          (2) Special meetings of stockholders of the Corporation may be called
     by the Board of Directors pursuant to a resolution adopted by a majority of
     the Directors then serving, by the Chairman of the Board, or by any holder
     or holders of at least forty percent (40%) of the outstanding shares of
     capital stock of the Corporation then entitled to vote on any matter for
     which the respective special meeting is being called.

          (3) Meetings of stockholders may be held within or without the State
     of Delaware, as the Bylaws may provide.  The books of the Corporation may
     be kept (subject to any provision contained in the General Corporation Law
     of the State of Delaware) outside the State of Delaware at such place or
     places as may be designated from time to time by the Board of Directors or
     in the bylaws of the Corporation.

     SEVENTH:  Duration.  The duration of the Corporation shall be perpetual.
               --------                                                      

     EIGHTH:  Section 203.  Pursuant to Section 203(b)(1) of the General
              -----------                                               
Corporation Law of the State of Delaware, the Corporation hereby expressly opts
not to be governed by Section 203 of the General Corporation Law of the State of
Delaware.

     NINTH:  Liability and Indemnification.
             ----------------------------- 

     (a)  Liability.
          --------- 

          A director of the Corporation shall not be personally liable to the
     Corporation or any of its stockholders for monetary damages for breach of
     fiduciary duty as a director, except for liability (i) for any breach of
     the director's duty of loyalty to the Corporation or its stockholders, (ii)
     for acts or omissions not in good faith or which involve intentional
     misconduct or a knowing violation of law, (iii) under Section 174 of the
     General Corporation Law of the State of Delaware, or (iv) for any
     transaction from which the director derived any improper personal benefit.
     If the General Corporation Law of the State of Delaware is amended after
     approval by the stockholders of this Article Ninth to authorize corporate
     action further eliminating or limiting the personal liability of directors,
     then the liability of a director of the Corporation shall be eliminated or
     limited to the fullest extent permitted by the General Corporation Law of
     the State of Delaware, as so amended.  Any repeal or modification of this
     Article Ninth by the stockholders of the Corporation shall not adversely
     affect any right or protection of a director of the Corporation existing at
     the time of such repeal or modification with respect to acts or omissions
     occurring prior to such repeal or modification.

     (b)  Indemnification.
          --------------- 

                                       5
<PAGE>
 
          (1) Each person who was or is made a party or is threatened to be made
     a party to any threatened, pending or completed action, suit or proceeding,
     whether civil, criminal, administrative or investigative (hereinafter a
     "proceeding") (including an action by or in the right of the Corporation),
     by reason of the fact that he is or was serving as a director or officer of
     the Corporation (or is or was serving at the request of the Corporation in
     a similar capacity with another entity, including employee benefit plans),
     shall be indemnified and held harmless by the Corporation to the fullest
     extent authorized by the General Corporation Law of the State of Delaware.
     This indemnification will cover all expense, liability and loss (including
     attorneys' fees, judgments, fines, ERISA excise taxes or penalties and
     settlement amounts) reasonably incurred by the director in connection with
     a proceeding.  All such indemnification shall continue as to a director or
     officer who has ceased to be a director or officer and shall continue to
     the benefit of such director's or officer's heirs, executors and
     administrators.  Except as provided in paragraph (b)(2) of this Article
     Ninth with respect to proceedings to enforce rights to indemnification, the
     Corporation shall indemnify any such director or officer who initiates a
     proceeding only if such proceeding was authorized by the Board of Directors
     of the Corporation.  The right to indemnification conferred by this Article
     Ninth shall be a contract right and may include the right to be paid by the
     Corporation the expenses incurred in defending any such proceeding in
     advance of its final disposition (hereinafter an "advancement of
     expenses").  If the General Corporation Law of the State of Delaware
     requires, an advancement of expenses incurred by a director or officer in
     his capacity as a director or officer shall be made only upon delivery to
     the Corporation of an undertaking by such director or officer to repay all
     amounts so advanced if it is ultimately determined by final judicial
     decision that such director or officer is not entitled to be indemnified
     for such expenses under this Article Ninth or otherwise (hereinafter an
     "undertaking").

          (2) If a claim under paragraph (b)(1) of this Article Ninth is not
     paid in full by the Corporation within ninety days after receipt of a
     written claim, the director or officer may bring suit against the
     Corporation to recover the unpaid amount.  (In the case of a claim for
     advancement of expenses, the applicable period will be twenty days.)  If
     successful in any such suit, the director or officer will also be entitled
     to be paid the expense of prosecuting such suit.  In any suit brought by
     the director or officer to enforce a right to indemnification hereunder
     (but not in a suit brought by the director or officer to enforce a right to
     an advancement of expenses), it shall be a defense that the director or
     officer has not met the applicable standard of conduct under the General
     Corporation Law of the State of Delaware.  In any suit by the Corporation
     to recover an advancement of expenses pursuant to the terms of an
     undertaking, it shall be entitled to recover such expenses upon a final
     adjudication that the director or officer has not met the applicable
     standard of conduct set forth in the General Corporation Law of the State
     of Delaware.  Neither the failure of the Board of Directors of the
     Corporation to determine prior to the commencement of such suit that the
     director or officer has met the applicable standard of conduct for
     indemnification set forth in the General Corporation Law of the State of
     Delaware, nor an actual determination by the Board of Directors of the
     Corporation that the director or officer has not met such applicable
     standard of conduct, shall create a presumption that the director or
     officer has not met the applicable standard of conduct, and, in the case of
     such a suit brought by the director or officer to enforce a right hereunder
     or by the Corporation to recover an advancement of expenses pursuant to the

                                       6
<PAGE>
 
     terms of an undertaking, the burden of proving that the director or officer
     is not entitled to be indemnified or to such advancement of expenses under
     this Article Ninth or otherwise shall be on the Corporation.

          (3) The rights to indemnification and to the advancement of expenses
     conferred in this Article Ninth are not exclusive of any other right which
     any person may have or hereafter acquire under any statute, this Second
     Amended and Restated Certificate of Incorporation, bylaw, agreement, vote
     of stockholders or disinterested directors or otherwise.

          (4) The Corporation may maintain insurance, at its expense, to protect
     itself and any director, officer, employee or agent of the Corporation or
     other entity against any expense, liability or loss, whether or not the
     Corporation would have the power to indemnify such person under the General
     Corporation Law of the State of Delaware.

          (5) The Corporation may, if authorized by the Board of Directors,
     grant rights to indemnification and to the advancement of expenses to any
     employee or agent of the Corporation to the same extent as for directors of
     the Corporation.

     TENTH:  Creditor Compromise or Arrangement.  Whenever a compromise or
             ----------------------------------                           
arrangement is proposed between the Corporation and its creditors or any class
of them and/or between the Corporation and its stockholders or any class of
them, any court of equitable jurisdiction within the State of Delaware may, on
the application in a summary way of the Corporation or of any creditor or
stockholder thereof or on the application of any receiver or receivers appointed
for the Corporation under the provisions of Section 291 of Title 8 of the
Delaware Code or on the application of trustees in dissolution or of any
receiver or receivers appointed for the Corporation under the provisions of
Section 279 of Title 8 of the Delaware Code, order a meeting of the creditors or
class of creditors, and/or of the stockholders or class of stockholders of the
Corporation, as the case may be, to be summoned in such manner as the said court
directs.  If a majority in number representing three-fourths in value of the
creditors or class of creditors, and/or of the stockholders or class of
stockholders of the Corporation, as the case may be, agree to any compromise or
arrangement and to any reorganization of the Corporation as a consequence of
such compromise or arrangement, the said compromise or arrangement and the said
reorganization shall, if sanctioned by the court to which the said application
has been made, be binding on all the creditors or class of creditors, and/or on
all the stockholders or class of stockholders, of the Corporation,  as the case
may be, and also on the Corporation.

     ELEVENTH:  Corporate Power.  The Corporation reserves the right to amend,
                ---------------                                               
alter, change or repeal any provision contained in this Second Amended and
Restated Certificate of Incorporation, in the manner now or hereafter prescribed
by statute, and all rights conferred on stockholders herein are granted subject
to this reservation.

                                       7
<PAGE>
 
     IN WITNESS WHEREOF, the Corporation has caused its corporate seal to be
hereunto affixed and this Second Amended and Restated Certification of
Incorporation to be executed by James J. McGonigle, its Chief Executive Officer,
this 18th day of February, 1999.

 
 
                                                By:  /s/ James McGonigle
                                                   -----------------------------
                                                Name:    James McGonigle
                                                Title:   Chief Executive Officer

                                       8

<PAGE>
 
                                                                    EXHIBIT 23.2

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the use of our reports
and to all references to our Firm included in or made a part of this
registration statement.


                                              /s/ ARTHUR ANDERSEN LLP

        
Washington, D.C.
February 19, 1999      


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