Document:

<PAGE>
                                                                    EXHIBIT 10.1

                                                                  EXECUTION COPY
                                                                  --------------

================================================================================

                             INVESTMENT AGREEMENT

                                    between

                                  DENTSU INC.

                                      and

                                   BDM, INC.

                          Dated as of March 14, 2000

================================================================================
<PAGE>

                               TABLE OF CONTENTS

                                   RECITALS

<TABLE>
<CAPTION>
                                   ARTICLE I
                          SALE AND PURCHASE OF SHARES

<S>                                                                       <C>
1.1.   Sale and Purchase of Shares......................................   1
1.2.   Closing..........................................................   2
1.3.   Closing Deliveries by BDM........................................   2
1.4.   Closing Deliveries by Dentsu.....................................   2

                                  ARTICLE II
                        REPRESENTATIONS AND WARRANTIES
                                    OF BDM

2.1.   Due Organization.................................................   2
2.2.   Capitalization, Title to Shares, etc.............................   3
2.3.   Authority........................................................   5
2.4.   No Conflict; BBH.................................................   5
2.5.   Governmental Approvals and Other Consents........................   6
2.6.   Client Relationships.............................................   6
2.7.   Financial Statements, Undisclosed Liabilities....................   6
2.8.   Absence of Changes...............................................   7
2.9.   Litigation.......................................................  10
2.10.  Indebtedness.....................................................  11
2.11.  Taxes............................................................  11
2.12.  Compliance with Law, Contractual Obligations, etc................  11
2.13.  Securities Law Compliance........................................  12
2.14.  No Broker or Finder..............................................  12
2.15.  Merger Documents.................................................  12
2.16.  Disclosure.......................................................  12
2.17.  Offering Memorandum; BDM Material Adverse Effect.................  12
</TABLE>

                                       i
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<TABLE>
<CAPTION>
                                  ARTICLE III
                        REPRESENTATIONS AND WARRANTIES
                                   OF DENTSU

<S>                                                                          <C>
3.1. Due Organization....................................................... 13
3.2. Authority.............................................................. 13
3.3. No Conflict............................................................ 13
3.4. Governmental Approvals and Other Consents.............................. 14
3.5. No Broker or Finder.................................................... 14
3.6. Private Placement...................................................... 14

                                  ARTICLE IV
                               COVENANTS OF BDM

4.1. Satisfaction of Closing Conditions; Notification....................... 15
4.2. Public Announcements................................................... 15
4.3. Further Actions........................................................ 16
4.4. Conduct of BDM Business................................................ 16
4.5. Subsequent Financial Statements and Reports............................ 17
4.6. Issuance of Additional Shares of Class B Stock......................... 17
4.7. Signatories to BDM Voting Trust Agreement and BDM Stock Purchase
          Agreement......................................................... 17

                                   ARTICLE V
                              COVENANTS OF DENTSU

5.1. Satisfaction of Closing Conditions; Notification....................... 18
5.2. Public Announcements................................................... 18
5.3. Further Actions........................................................ 18

                                  ARTICLE VI
                             CONDITIONS TO CLOSING

6.1. Conditions to Obligations of Each Party................................ 18
       (a)   No Injunction, etc............................................. 19
       (b)   Government Approvals and Consents.............................. 19
6.2. Conditions to Obligations of Dentsu.................................... 19
       (a)   Representations and Warranties................................. 19
       (b)   Performance of Agreements...................................... 19
</TABLE>

                                      ii
<PAGE>

<TABLE>
<S>                                                                         <C>
       (c)   Officer's Certificate......................................... 20
       (d)   No Material Adverse Effect.................................... 20
       (e)   Related Documents............................................. 20
       (f)   Restated Charter and By-Laws.................................. 20
       (g)   Opinions...................................................... 20
       (h)   Corporate and Other Proceedings............................... 21
6.3. Conditions to Obligations of BDM...................................... 21
       (a)   Representations and Warranties................................ 21
       (b)   Performance of Agreements..................................... 21
       (c)   Officer's Certificate......................................... 22
       (d)   Corporate Proceedings......................................... 22
       (e)   Alliance Agreement............................................ 22
       (f)   Opinion of Counsel............................................ 22

                                  ARTICLE VII
                               PREEMPTIVE RIGHTS

7.1. Preemptive Rights prior to the IPO.................................... 22
7.2. Preemptive Rights with respect to the IPO............................. 25
7.3. Termination of Preemptive Rights...................................... 27
7.4. Issuance of Class B Stock............................................. 28

                                 ARTICLE VIII
                       STANDSTILL AND TRANSFER PROVISIONS

8.1. Standstill............................................................ 28
8.2. Transfer Restrictions................................................. 31
8.3. Legends............................................................... 33
8.4. Registration Rights................................................... 34

                                  ARTICLE IX
                        GOVERNANCE AND OTHER AGREEMENTS

9.1. Governance............................................................ 34
9.2. Rights of First Offer................................................. 36
9.3. Information and Inspection............................................ 39
9.4. Filings Regarding Rule 144............................................ 39
9.5. Tax Cooperation....................................................... 40
</TABLE>

                                      iii
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<TABLE>
                                   ARTICLE X
                                  TERMINATION

<S>                                                                    <C>
10.1.   Termination................................................... 40
10.2.   Effect of Termination......................................... 40

                                  ARTICLE XI
                                INDEMNIFICATION

11.1.   Indemnification by BDM........................................ 40
11.2.   Indemnification by Dentsu..................................... 41
11.3.   Notice of Claims and Cure Period.............................. 41
11.4.   Limitations on Claims......................................... 42
11.5.   Termination of Indemnification................................ 43
11.6.   Third Person Claims........................................... 43

                                  ARTICLE XII
                                CONFIDENTIALITY

12.1.   Confidentiality of Terms of Related Documents................. 44
12.2.   Confidentiality of Certain Information........................ 45
12.3.   Exclusions.................................................... 46

                                   ARTICLE XIII
                                   MISCELLANEOUS

13.1.   Expenses...................................................... 46
13.2.   Notices....................................................... 47
13.3.   GOVERNING LAW, ETC............................................ 48
13.4.   Arbitration................................................... 48
13.5.   Judicial Procedure............................................ 50
13.6.   Binding Effect................................................ 50
13.7.   Assignment.................................................... 50
13.8.   No Third-Party Beneficiaries.................................. 50
13.9.   Amendment; Waivers, etc....................................... 50
13.10.  Severability.................................................. 51
13.11.  Headings...................................................... 51
</TABLE>

                                      iv
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<TABLE>
<S>                                                                          <C>
13.12.  Counterparts........................................................ 51
13.13.  Interpretation...................................................... 51
13.14.  No Other Representations or Warranties; Adequacy of Investigation... 51
13.15.  Entire Agreement.................................................... 52
</TABLE>

Schedules

Schedule A     Definitions
Disclosure Schedule

Exhibits

Exhibit A      Form of Restated Charter
Exhibit B      Form of Registration Rights Agreement
Exhibit C      Form of Alliance Agreement
Exhibit D      Form of Restated By-Laws
Exhibit E      Form of Opinion of Sidley & Austin
Exhibit F      Form of Opinion of Kirkland & Ellis
Exhibit G      Form of Opinion of General Counsel of BDM
Exhibit H      Form of Opinion of Debevoise & Plimpton
Exhibit I      Form of Opinion of Tokyo Eiwa

                                       v
<PAGE>

          INVESTMENT AGREEMENT, dated as of March 14, 2000, between DENTSU INC.,
a company organized under the laws of Japan with its principal office at 1-11,
Tsukiji, Chuo-Ku, Tokyo 104-8426, Japan (together with its successors and
assigns, "Dentsu") and BDM, Inc., a corporation organized under the laws of
Delaware with its principal office at 35 West Wacker Drive, Chicago, Illinois
60601 (together with its successors and assigns, "BDM"). Capitalized terms used
herein without definition have the respective meanings assigned to such terms in
Schedule A.

                                   RECITALS

          A.   The Leo Group, Inc. ("TLG") and The MacManus Group, Inc. ("TMG"),
each a Delaware corporation, have entered into a business combination as a
result of which they have become wholly-owned subsidiaries of BDM.

          B.   The parties hereto desire to provide for the issuance by BDM to
Dentsu of shares of BDM's Class B Stock representing 21.6% of the aggregate
voting capital stock of BDM outstanding as of the Closing Date (including the
Share Replacement Options).

          C.   BDM presently anticipates effecting and underwritten public
offering of shares of BDM Common Stock, including a registration of such shares
under the Securities Act and a listing of the BDM Common Stock on a national
securities exchange or on NASDAQ (an "IPO"), within two years from the date
hereof.

          D.   In order to achieve the foregoing objectives and otherwise to
establish mutually beneficial arrangements for long-term cooperation, the
parties hereto desire to enter into this Agreement, the Registration Rights
Agreement and the Alliance Agreement, all upon the terms and conditions set
forth herein and therein.

          NOW, THEREFORE, in consideration of the mutual premises, covenants,
representations and warranties made herein and of the mutual benefits to be
derived herefrom, the parties hereto agree as follows:

                                   ARTICLE I
                          SALE AND PURCHASE OF SHARES

          1.1.  Sale and Purchase of Shares.  Upon the terms and subject to the
                ---------------------------
conditions set forth in this Agreement, BDM will issue and sell to Dentsu, at
the Closing, an aggregate of 4,274,248 shares of BDM's Class B Stock (the
"Shares"), equal to 21.6% of the aggregate number of shares of BDM Common Stock
outstanding as of the Closing Date (taking into account the Shares to be issued
to Dentsu pursuant to this Agreement and treating the shares of BDM Common Stock
subject to the Share Replacement Options
<PAGE>

as being outstanding for such purposes), for a purchase price of $115.38 per
share, and an aggregate purchase price of $493,162,734.20 (the "Aggregate
Purchase Price").

          1.2. Closing. The closing of the sale and purchase of the Shares (the
               -------
"Closing") shall take place at 10:00 am, local time, at the offices of BDM in
Chicago (or at such other place as the parties may agree upon), on March 14,
2000, or as soon as practicable following the satisfaction or waiver of all of
the conditions precedent set forth in Article VI or on such other date as the
parties may agree (the "Closing Date").

          1.3. Closing Deliveries by BDM. At the Closing, BDM shall deliver, or
               -------------------------
cause to be delivered, the following to Dentsu:

          (a) stock certificates representing the Shares, in good form for
     delivery, free and clear of all Liens (other than any Liens created by
     Dentsu) and registered in the name of Dentsu; and

          (b) the opinions, certificates, agreements and other documents
     contemplated to be delivered pursuant to Section 6.2.

          1.4. Closing Deliveries by Dentsu. At the Closing, Dentsu shall
               ----------------------------
deliver, or cause to be delivered, the following to BDM:

          (a) the Aggregate Purchase Price, by means of wire transfer to the
     account of BDM which has been designated to Dentsu; and

          (b) the opinion, certificates, agreements and other documents
     contemplated to be delivered pursuant to Section 6.3.

                                  ARTICLE II
                        REPRESENTATIONS AND WARRANTIES
                                    OF BDM

          BDM represents and warrants to Dentsu as of the date hereof and as of
Closing Date as follows:

          2.1. Due Organization. (a) BDM is a corporation duly organized,
               ----------------
validly existing and in good standing under the laws of the State of Delaware,
with all requisite power and authority to own, lease and operate all of its
assets and to carry on its business as it is now being conducted and as proposed
to be conducted, and is duly

                                       2
<PAGE>

licensed or qualified to do business in each jurisdiction in which the nature of
the business conducted by it or the character or location of the assets owned or
leased by it makes such licensing or qualification necessary other than
jurisdictions in which the failure to be so licensed or qualified, individually
and in the aggregate, would not have or result in a BDM Material Adverse Effect
or materially impair the ability of BDM to perform its obligations hereunder or
under any other Related Document.

          (b)  Each Material BDM Subsidiary is a corporation duly organized,
validly existing and in good standing under the laws of its jurisdiction of
incorporation, with all requisite power and authority to own, lease and operate
all of its assets and to carry on its business as it is now being conducted and
as proposed to be conducted, and is duly licensed or qualified to do business in
each jurisdiction in which the nature of the business or the character or
location of the assets owned or leased by it makes such licensing or
qualification necessary other than jurisdictions in which the failure to be so
licensed or qualified, individually and in the aggregate, would not have or
result in a BDM Material Adverse Effect or materially impair the ability of BDM
to perform its obligations hereunder or under any other Related Document.

          (c)  BDM has delivered to Dentsu complete and correct copies of the
Organizational Documents of BDM, as amended, modified or waived through and in
effect on the date hereof. Each of the Organizational Documents of BDM is in
full force and effect.

          2.2. Capitalization, Title to Shares, etc. (a) As of the date
               ------------------------------------
immediately prior to the filing of the Restated Charter, BDM's authorized
capital stock consisted of 30,000,000 shares of common stock, par value $0.01
per share, of which 15,513,940 shares were issued and outstanding. As of the
date hereof, BDM's authorized capital stock consists of: (y) 40,000,000 shares
of Class A Stock, of which 4,274,248 shares have been reserved for issuance upon
conversion of the Class B Stock being issued to Dentsu on the Closing Date, and
(z) 10,000,000 shares of Class B Stock. All outstanding shares of capital stock
of BDM (other than the Shares) have been duly authorized and validity issued and
are fully paid and nonassessable.

         (b) When issued and sold to Dentsu, the Shares (and any additional
shares of Class B Common Stock issued to Dentsu pursuant to Section 4.3(b)) will
be duly authorized, validly issued, fully paid and nonassessable. Upon the
delivery of the Shares to Dentsu at the Closing, as provided for in this
Agreement, Dentsu will acquire good and valid title to the Shares, free and
clear of any Lien other than any Lien created by Dentsu and without violation of
any preemptive rights. As of the Closing Date, the Shares will constitute 21.6%
of the aggregate number of shares of BDM Common Stock outstanding

                                       3
<PAGE>

as of such date (taking into account the Shares to be issued to Dentsu pursuant
to this Agreement).

          (c) (i) Section 2.2(c)(i) of the disclosure schedule to this Agreement
(the "Disclosure Schedule") contains the following complete and correct
information for each Material BDM Subsidiary: (A) the name of such Subsidiary;
(B) its jurisdiction of incorporation; (C) a description of the shares of
capital stock or other equity interests of such Subsidiary that are authorized
or issued and outstanding, including the names and stockholding (or other
equity holding) of each stockholder (or other equity holder) in such Subsidiary;
and (D) the percentage of the outstanding shares of capital stock or other
equity interests of such Subsidiary that is owned, directly and indirectly by
BDM.

          (ii) All of the outstanding shares of capital stock or other equity
interests set forth in Section 2.2(c)(i) of the Disclosure Schedule are duly
authorized, validly issued, fully paid and nonassessable, and are owned (i) of
record and beneficially by the member of the BDM Group set forth in Section 2.2
(c)(i) of the Disclosure Schedule, free and clear of any Liens, or (ii) of
record and, to the Knowledge of BDM, beneficially by each Person (other than a
member of the BDM Group) set forth in Section 2.2(c)(i) of the Disclosure
Schedule.

          (d) Except as set forth in the Related Documents and as otherwise
disclosed in Section 2.2(d) of the Disclosure Schedule: (i) None of BDM or any
Material BDM Subsidiary has any outstanding Convertible Securities or Stock
Purchase Rights; (ii) none of BDM or any Material BDM Subsidiary is a party to
any agreement or understanding pursuant to which it is or will be obligated to
purchase or redeem any shares of its capital stock or any Convertible Securities
or Stock Purchase Rights other than the stock purchase agreement that each
stockholder of BDM (other than Dentsu) was required to enter into pursuant to
the Merger Agreement (each a "BDM Stock Purchase Agreement"); and (iii) to the
Knowledge of BDM, no securities holder of BDM or any Material BDM Subsidiary is
a party to any voting agreement, voting trust, irrevocable proxy or other
agreement affecting the voting rights of any shares of the capital stock or
other equity interests of BDM or any Material BDM Subsidiary, other than the
voting trust agreement that each stockholder of BDM (other than Dentsu) was
required to enter into pursuant to the Merger Agreement (the "BDM Voting Trust
Agreement"). Except for the Related Documents, the BDM Stock Purchase Agreements
and as otherwise disclosed in Section 2.2(d) of the Disclosure Schedule, there
are no outstanding contractual or other rights or obligations to or of any
Person to repurchase, redeem or otherwise acquire any outstanding shares or
other equity interests of BDM or any Material BDM Subsidiary. Except as
otherwise disclosed in Section 2.2(d) of the Disclosure Schedule, to the

                                       4
<PAGE>

Knowledge of BDM, each stockholder (other than Dentsu) of BDM is a party to the
BDM Voting Trust Agreement and a BDM Stock Purchase Agreement.

                 2.3. Authority. BDM has full corporate power and authority to
                      ---------
execute and deliver this Agreement and each of the other Related Documents to
which it is a party, to perform fully its obligations hereunder and thereunder
and to consummate the transactions contemplated hereby and thereby. The
execution and delivery of this Agreement and the other Related Documents by BDM,
the performance of BDM's obligations hereunder and thereunder, and the
consummation of the transactions contemplated hereby and thereby have all been
duly authorized by all necessary corporate action. This Agreement has been duly
executed and delivered by BDM and constitutes the legal, valid and binding
obligation of BDM, enforceable in accordance with its terms, except as such
enforceability may be limited by bankruptcy, insolvency, reorganization or
similar laws affecting creditors' rights generally and subject to general
principles of equity. Upon due execution and delivery thereof as contemplated in
this Agreement, each of the other Related Documents will have been duly executed
and delivered by BDM and will constitute the legal, valid and binding obligation
of BDM, enforceable in accordance with its terms, except as such enforceability
may be limited by bankruptcy, insolvency, reorganization or similar laws
affecting creditors' rights generally and subject to general principles of
equity.

                 2.4. No Conflict: BBH.  Except as disclosed in Section 2.4 of
                      ----------------
the Disclosure Schedule, the execution, delivery and performance by BDM of this
Agreement and the other Related Documents to which it is a party and the
consummation of the transactions contemplated hereby and thereby do not and will
not, with or without the passage of time or the giving of notice or both, result
in (i) any conflict with or violation of any provision of any of the
Organizational Documents of BDM, (ii) any conflict with, violation of, or
default under any Law or Contractual Obligation applicable to any member of the
BDM Group or (iii) the creation or imposition, or require the creation or
imposition, of any Lien on any of the properties or revenues of any member of
the BDM Group pursuant to any Law or Contractual Obligation except, in the case
of clauses (ii) and (iii), to the extent that such conflict, violation, default
or Lien, individually and in the aggregate, would not have or result in a BDM
Material Adverse Effect, or materially impair the ability of BDM to perform its
obligations hereunder or under any other Related Document. BDM has delivered to
Dentsu a complete and correct copy of a letter, dated March 12, 2000, from BBH
Holdings Ltd. ("BBH") to BDM, concerning "Change of Control" of the companies
referred to in such letter. Such letter has been duly executed and delivered by
BBH.

                                       5
<PAGE>

          2.5. Governmental Approvals and Other Consents. (a) Except as
               -----------------------------------------
disclosed in Section 2.5(a) of the Disclosure Schedule and except for the
consents, approvals or authorizations applied for under the HSR Act and any
required filings under the International Investment and Trade in Services Survey
Act, no Governmental Approval or other Consent is or was required to be made or
obtained by BDM in connection with the execution and delivery by BDM of this
Agreement or any other Related Document, the consummation by BDM of the
transactions contemplated hereby or thereby or the performance by BDM of any of
its obligations contained herein or therein.

           (b) All Governmental Approvals and other Consents necessary in any
material respect for, or otherwise material to, the conduct of the Business by
the BDM Group have been duly obtained and will be in full force and effect as of
the Closing Date. As of the Closing Date, each member of the BDM Group will be
in compliance with all Governmental Approvals and other Consents held by it with
respect to the Business, except for such failures so to comply that,
individually and in the aggregate, would not have or result in a BDM Material
Adverse Material Effect. The execution, delivery and performance of this
Agreement and the consummation of the transactions contemplated hereby do not
and will not violate any such Governmental Approval or Consent, or result in any
revocation, cancellation, suspension, modification or nonrenewal thereof.

          2.6. Client Relationships.  Except as set forth in Section 2.6 to the
               --------------------
Disclosure Schedule: (i) since the closing of the Mergers, (A) neither BDM nor
any Subsidiary has lost or resigned any Client account representing annual
revenues in excess of $5,000,000; (B) to the knowledge of BDM, no Client account
of BDM or any Subsidiary representing annual revenues in excess of $5,000,000
has been put up for review with such review still remaining unresolved; (ii)
neither BDM nor any Subsidiary is subject to any contractual exclusivity
provisions or other exclusivity arrangements that would prevent BDM or such
Subsidiary from accepting a major assignment from any Client on the "Target
List" (as such term is defined in the Alliance Agreement); and (iii) to the
Knowledge of BDM, no existing Client that is material to the BDM Group taken as
a whole has instituted a business conflict policy with respect to its
Advertising Agencies that would prevent BDM or such Subsidiary from accepting a
major assignment from any Client on such Target List.

          2.7. Financial Statements, Undisclosed Liabilities.  (a) TLG has
               ---------------------------------------------
heretofore delivered to Dentsu complete and correct copies of the following
financial statements (the "Financial Statements"): (i) the consolidated balance
sheets of Leo Burnett Worldwide, Inc. (which was subsequently renamed The Leo
Group, Inc.) and its subsidiaries as of December 31, 1998 and December 31, 1997
and the related consolidated

                                       6
<PAGE>

statements of income, shareholders' investments and cash flows for the years
then ended, together with auditor's reports thereon by Arthur Andersen LLP, (ii)
the consolidated balance sheets of Leo Burnett Company, Inc. (which was
subsequently renamed Leo Burnett USA, Inc.) and its subsidiaries as of
December 31, 1998 and December 31, 1997 and the related consolidated statements
of income, shareholders' investments and cash flows for the years then ended,
together with auditor's reports thereon by Arthur Andersen LLP (with the
December 31, 1998 balance sheets described in clauses (i) and (ii) being
sometimes herein collectively referred to as the "1998 Balance Sheets") and
(iii) the consolidated balance sheets of TLG and its subsidiaries as at
March 31, 1999 and June 30, 1999 and the related consolidated statements of
income, shareholders' investments and cash flows for the periods then ended. The
Financial Statements are complete and correct in all respects, have been derived
from the accounting books and records of the indicated entities, and have been
prepared in accordance with GAAP applied on a consistent basis throughout the
periods presented in the Financial Statements subject, in the case of interim
unaudited Financial Statements, only to normal recurring year-end adjustments
(which adjustments are not material individually or in the aggregate). The
Financial Statements fairly present the consolidated financial condition and
consolidated results of operations of the indicated entities as of the dates and
for the periods indicated.

          (b) To the Knowledge of BDM, no member of the TLG Group is subject to
any liabilities or obligations of any nature (including unasserted claims),
whether absolute, contingent, accrued or otherwise and whether due or to become
due, that are material to the BDM Group taken as a whole and that are not shown
or are in excess of amounts shown or reserved for in the 1998 Balance Sheets,
other than: (i) liabilities that were incurred by TLG or such Subsidiary after
the date of the December 31, 1998 balance sheet in the ordinary course of
business consistent with past practice and (ii) liabilities specifically
disclosed in the Disclosure Schedule or in the Offering Memorandum.

          2.8. Absence of Changes. (a) Between December 31, 1998 and the date of
               ------------------
this Agreement, except as set forth in the Disclosure Schedule or in the
Offering Memorandum, no member of the TLG Group has:

          (i)  declared, set aside, made or paid any dividend or other
     distribution in respect of its capital stock or otherwise purchased or
     redeemed, directly or indirectly, any shares of its capital stock;

          (ii) issued or sold any shares of any class of its capital stock, or
     any securities convertible into or exchangeable or exercisable for any such
     shares;

                                       7
<PAGE>

       (iii)  incurred any indebtedness for borrowed money, issued or sold any
debt securities or prepaid any debt in excess of $5,000,000 in any one case,
except for borrowings and repayments in the ordinary course of business
consistent with past practice;

       (iv)   mortgaged, pledged or otherwise subjected to any Lien, any of its
material properties or assets, tangible or intangible, except for Permitted
Liens in the ordinary course of business consistent with past practice;

       (v)    forgiven, canceled, compromised, waived or released any material
debts, claims or rights, except for debts, claims and rights against Persons
other than any member of the TLG Group, forgiven, canceled, compromised, waived
or released in the ordinary course of business consistent with past practice;

       (vi)   increased the compensation of any officer or employee, other than
(A) in the ordinary course of business consistent with past practice or (B) to
comply with Law;

       (vii)  suffered any damage, destruction or loss (whether or not covered
by insurance), or any strike or other employment-related problem, or any change
in relations with or any loss of a supplier or employee, that, individually or
in the aggregate, could have or result in a TLG Material Adverse Effect;

       (viii) amended any of its Organizational Documents;

       (ix)   changed in any material respect its accounting practices, policies
or principles;

       (x)    incurred, assumed, guaranteed or otherwise become directly or
indirectly liable with respect to any liability or obligation outside the
ordinary course of business in excess of $5,000,000 in each case or $25,000,000
in the aggregate at any one time outstanding (whether absolute, accrued,
contingent or otherwise and whether direct or indirect, or as guarantor or
otherwise with respect to any liability or obligation of any other Person);

       (xi)   disposed or agreed to dispose of any material properties or assets
necessary for the conduct of the TLG Business other than in the ordinary course
of business consistent with past practice;

                                       8
<PAGE>

          (xii) entered into any agreement outside the ordinary course of
     business consistent with past practice;

          (xiii) made any material changes in policies or practices relating to
     employment; or

          (xiv) taken any action or omitted to take any action that would result
     in the occurrence of any of the foregoing.

          (b) Between January 31, 2000 (the closing date of the Mergers) and the
date of this Agreement, except as set forth in the Disclosure Schedule, no
member of the BDM Group has:

          (i) declared, set aside, made or paid any dividend or other
     distribution in respect of its capital stock or otherwise purchased or
     redeemed, directly or indirectly, any shares of its capital stock;

          (ii) issued or sold any shares of any class of its capital stock, or
     any securities convertible into or exchangeable or exercisable for any such
     shares;

          (iii) incurred any indebtedness for borrowed money, issued or sold any
     debt securities or prepaid any debt in excess of $5,000,000 in any one
     case, except for borrowings and repayments in the ordinary course of
     business consistent with past practice;

          (iv) mortgaged, pledged or otherwise subjected to any Lien, any of its
     material properties or assets, tangible or intangible, except for Permitted
     Liens in the ordinary course of business consistent with past practice;

          (v) forgiven, canceled, compromised, waived or released any material
     debts, claims or rights, except for debts, claims and rights against
     Persons other than any member of the BDM Group, forgiven, canceled,
     compromised, waived or released in the ordinary course of business
     consistent with past practice;

          (vi) increased the compensation of any officer or employee, other than
     (A) in the ordinary course of business consistent with past practice or (B)
     to comply with Law;

          (vii) suffered any damage, destruction or loss (whether or not covered
     by insurance), or any strike or other employment-related problem, or any
     change in

                                       9

<PAGE>

     relations with or any loss of a supplier or employee, that, individually or
     in the aggregate, could have or result in a BDM Material Adverse Effect;

           (viii)  amended any of its Organizational Documents;

           (ix)    changed in any material respect its accounting practices,
     policies or principles;

           (x)     incurred, assumed, guaranteed or otherwise become directly or
     indirectly liable with respect to any liability or obligation outside the
     ordinary course of business in excess of $5,000,000 in each case or
     $25,000,000 in the aggregate at any one time outstanding (whether absolute,
     accrued, contingent or otherwise and whether direct or indirect, or as
     guarantor or otherwise with respect to any liability or obligation of any
     other Person);

           (xi)    disposed or agreed to dispose of any material properties or
     assets necessary for the conduct of the Business other than in the ordinary
     course of business consistent with past practice;

          (xii)    entered into any agreement outside the ordinary course of
     business consistent with past practice;

          (xiii)   made any material changes in policies, or practices relating
     to policies, of employment; or

          (xiv)    taken any action or omitted to take any action that would
     result in the occurrence of any of the foregoing.

           2.9.    Litigation.  Except as set forth in Section 2.9 of the
                   ----------
Disclosure Schedule, there are no judicial or administrative actions,
proceedings or investigations pending or, to the Knowledge of BDM, threatened
that, individually or in the aggregate, could reasonably be expected to impair
the ability of BDM to perform its obligations hereunder or under any other
Related Document, to have or result in a BDM Material Adverse Effect, or to
impair materially the ability of BDM or the BDM Group to conduct the Business
following the Closing. There are no outstanding orders, judgments, decrees or
injunctions issued by any Governmental Authority against any member of the BDM
Group that, individually or in the aggregate, in any way affect the Business and
could reasonably be expected to have or result in a BDM Material Adverse Effect.

                                      10
<PAGE>

          2.10. Indebtedness. Section 2.10 of the Disclosure Schedule sets
                ------------
forth a list of all outstanding Indebtedness of BDM and its Subsidiaries as of
the date hereof that exceeds US$5,000,000 in any instance. BDM has furnished to
Dentsu true and correct copies of the respective credit agreements of TMG and
TLG entered into in connection with the Mergers (including all exhibits and
schedules thereto), and each such agreement is in full force and effect and no
default of TMG, TLG or any of their respective Affiliates exists thereunder.

          2.11. Taxes. (a) Except as disclosed in Section 2.11 of the Disclosure
                -----
Schedule, or to the extent that a reserve has been provided in the applicable
1998 Balance Sheets: (i) BDM and each Subsidiary has filed all material Tax
Returns required to be filed by it; (ii) all such Tax Returns are complete and
accurate and disclose all material Taxes required to be paid by BDM or any
subsidiary for the periods covered thereby and all material Taxes shown to be
due on such Tax Returns have been timely paid; (iii) all material Taxes (whether
or not shown on any Tax Return) owed by BDM or any Subsidiary and required to
have been paid have been timely paid or, in the case of Taxes which BDM is
presently contesting in good faith, BDM or such Subsidiary has established an
adequate reserve for such Taxes; (iv) there is no action, suit, investigation,
audit, claim or assessment pending or proposed or threatened with respect to
material Taxes of BDM or any Subsidiary; and (v) there are no material Liens for
Taxes upon the assets of BDM or any subsidiary except Liens relating to current
Taxes not yet due.

          (b) Leo Burnett Company, Inc.  was classified as an "S corporation"
within the meaning of Section 1361 of the Code for all periods from January 1,
1987 through December 31, 1998 for U.S. federal income tax purposes and during
such period validly elected to be classified as an "S corporation" in each
state where it filed a Tax Return on such basis.

          (c) As of the Closing Date, BDM will not constitute a "United States
Real Property Holding Corporation" within the meaning of Section 897(c)(2) of
the Code.

          2.12. Compliance with Law, Contractual Obligations, etc. Except as
                -------------------------------------------------
disclosed in Section 2.12 of the Disclosure Schedule, (i) none of BDM or any
Material BDM Subsidiary is in breach of any of the provisions of its
Organizational Documents, other than in the case of any Material BDM Subsidiary,
a violation that, individually or in the aggregate, would not have or result in
a BDM Material Adverse Effect, and (ii) no member of the BDM Group is in
violation of any applicable Law or Contractual Obligation, other than a
violation that, individually or in the aggregate, would not have or result in a
BDM Material Adverse Effect.  To the Knowledge of BDM, no member of the

                                      11
<PAGE>

BDM Group has received any notice or has any knowledge of any claim alleging any
such breach or violation.

          2.13. Securities Law Compliance. Based on the representations and
                -------------------------
warranties of Dentsu set forth in Section 3.6, the offer and sale of the Shares
to Dentsu hereunder is exempt from the registration and prospectus delivery
requirements of the Securities Act and the rules and regulations thereunder.

          2.14. No Broker or Finder. Except as set forth on Section 2.14 of the
                -------------------
Disclosure Schedule, no brokerage or finder's commissions or fees payable in
connection with the transactions contemplated by this Agreement or any other
Related Document on account of any action taken by BDM, TLG, TMG or their
respective representatives.  BDM will indemnify Dentsu against and hold it
harmless from any liability, loss or expense (including, without limitation,
reasonable attorneys' fees) arising in connection with any claim for any such
commissions or fees.

          2.15. Merger Documents. BDM has delivered to Dentsu complete and
                ----------------
correct copies of the Merger Agreement and all other documents required to be
delivered or executed in connection therewith (the "Merger Documents"),
including without limitation, the form of BDM Stock Purchase Agreement, the form
of BDM Voting Trust Agreement, and all tax opinions contemplated thereby.

          2.16. Disclosure. To the Knowledge of BDM, documents furnished by or
                ----------
on behalf of TLG and TMG to Dentsu and its representatives in connection with
the due diligence investigation of TLG and TMG, including in respect of the
valuation of TLG and TMG, respectively, taken as a whole and as of the
respective dates such documents were so furnished, did not contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary to make the statements therein in light of the
circumstances under which they were made, not misleading.

          2.17. Offering Memorandum: BDM Material Adverse Effect. As of the date
                ------------------------------------------------
of delivery of the Offering Memorandum to the stockholders of TLG and TMG and as
of January 31, 2000 (the closing date of the Mergers), the information (other
than any information that was provided by Dentsu or any information derived
therefrom) contained in the Offering Memorandum was complete and correct in all
material respects and did not contain any untrue statement of a material fact or
omit any material fact required to make the statements therein not misleading.
Since January 31, 2000, there has not occurred any BDM Material Adverse Effect
or, to the Knowledge of BDM, any event, fact or change that could reasonably be
expected to lead to a BDM Material Adverse Effect.

                                      12
<PAGE>

                                  ARTICLE III
                        REPRESENTATIONS AND WARRANTIES
                                   OF DENTSU

          Dentsu represents and warrants to BDM as of the date hereof and as of
the Closing Date as follows:

          3.1. Due Organization. Dentsu is a company duly organized and validly
               ----------------
existing under the laws of Japan, with all requisite power and authority to own,
lease and operate all of its assets and to carry on its business as it is now
being conducted and as proposed to be conducted, and is duly licensed or
qualified to do business in each jurisdiction in which the nature of the
business conducted by it or the character or location of the assets owned or
leased by it makes such licensing or qualification necessary other than
jurisdictions in which the failure to be so licensed or qualified would not have
a Dentsu Material Adverse Effect.

          3.2. Authority. Dentsu has full corporate power and authority to
               ---------
execute and deliver this Agreement and each of the other Related Documents to
which it is a party, to perform fully its obligations hereunder and thereunder
and to consummate the transactions contemplated hereby and thereby.  The
execution and delivery by Dentsu of this Agreement and each of the other Related
Documents to which it is a party, the performance of Dentsu's obligations
hereunder and thereunder, and the consummation of the transactions contemplated
hereby and thereby have all been duly authorized by all necessary corporate
action.  This Agreement has been duly executed and delivered by Dentsu and
constitutes the legal, valid and binding obligation of Dentsu, enforceable in
accordance with its terms, except as may be limited by bankruptcy, insolvency,
reorganization or similar laws affecting creditors' rights generally and subject
to general principles of equity.  Upon due execution and delivery thereof, the
other Related Documents shall have been duly executed and delivered by Dentsu,
and they shall constitute the legal, valid and binding obligation of Dentsu,
enforceable in accordance with their terms, except as may be limited by
bankruptcy, insolvency, reorganization or similar laws affecting creditors'
rights generally and subject to general principles of equity.

          3.3. No Conflict. The execution, delivery and performance by Dentsu of
               -----------
this Agreement and each of the other Related Documents to which it is a party
and the consummation of the transactions contemplated hereby and thereby do not
and will not, with or without the passage of time or the giving of notice or
both, result in (i) any conflict with or violation of any provision of the
Organizational Documents of Dentsu, (ii) any conflict with, violation of, or
default under any Law or Contractual Obligation

                                      13
<PAGE>

applicable to Dentsu or (iii) the creation or imposition, or require the
creation or imposition, of any Lien on any of the properties or revenues of
Dentsu pursuant to any Law or Contractual Obligation except, in the case of
clause (ii) and (iii), to the extent that any such conflict, violation, default
or Lien, individually and in the aggregate, would not have or result in a Dentsu
Material Adverse Effect or materially impair the ability of Dentsu to perform
its obligations hereunder or under any other Related Document.

          3.4. Governmental Approvals and Other Consents. Except as disclosed in
               -----------------------------------------
Section 3.4 of the Disclosure Schedule and except for the consents, approvals or
authorizations to be applied for under the HSR Act and any required filings
under the International Investment and Trade in Services Survey Act, no
Governmental Approval or other Consent is required to be made or obtained by
Dentsu in connection with the execution and delivery by Dentsu of this Agreement
or any other Related Document to which it is a party, the consummation by Dentsu
of the transactions contemplated hereby or thereby or the performance by Dentsu
of any of its obligations contained herein or therein.

          3.5. No Broker or Finder. Dentsu is obligated to pay an Advisory
               -------------------
Service Fee to Nomura Wasserstein Perella Co., Ltd. in connection with its
advisory services. No other brokerage or finder's commissions or fees are
payable in connection with the transactions contemplated by this Agreement or
any other Related Document on account of any action taken by Dentsu or its
representatives, and Dentsu will indemnify BDM and TLG against and hold BDM and
TLG harmless from any liability, loss or expense (including, without limitation,
reasonable attorney's fees) arising in connection with any claim for any such
commissions or fees.

          3.6. Private Placement. (a) Dentsu understands that (y) the offering
               -----------------
and sale of the Shares are intended to be exempt from registration under the
Securities Act pursuant to Section 4(2) of the Securities Act and (z) there is
no existing public or other market for the Shares and there can be no
assurance that Dentsu will be able to sell or dispose of the Shares.

          (b) Dentsu is an "accredited investor" as such term is defined in
Regulation D under the Securities Act.

          (c) Dentsu has sufficient knowledge and experience in financial and
business matters so as to be capable of evaluating the merits and risks of its
investment in the Shares and it is capable of bearing the economic risks of such
investment, including a complete loss of such investment.

                                      14
<PAGE>

          (d) Dentsu has had access to the management and records of the BDM
Group and has been furnished with sufficient information in its opinion from the
BDM Group for determining whether to invest in the Shares, and has been given
the opportunity to ask questions of, and receive answers from, management of the
BDM Group regarding the businesses and affairs of such group and concerning
the terms and conditions of the Shares and other related matters.

          (e) Dentsu understands that the Shares will be characterized as
"restricted securities" under the federal securities laws inasmuch as they are
being acquired from BDM in transactions not involving a public offering and that
under such laws and applicable regulations such securities may be resold without
registration under the Securities Act only in certain limited circumstances. In
this connection, it represents that it is familiar with Rule 144 under the
Securities Act, as currently in effect, and understands the resale limitations
imposed thereby and by the Securities Act.

                                  ARTICLE IV
                               COVENANTS OF BDM

          4.1. Satisfaction of Closing Conditions; Notification. BDM shall
               ------------------------------------------------
endeavor to bring about the satisfaction as soon as possible of all the
conditions contained in Sections 6.1 and 6.2.  Without limiting the generality
of the foregoing, BDM shall apply for and prosecute with reasonable diligence
all applications for, and shall endeavor promptly to obtain, such Consents from
such third parties and Governmental Authorities as shall be necessary to permit
the consummation of the transactions contemplated by this Agreement including,
without limitation, making the requisite filings with the United States Federal
Trade Commission and the Antitrust Division of the Department of Justice
pursuant to the HSR Act.  At all times prior to the Closing Date, BDM shall
promptly notify Dentsu in writing of any fact, condition, event or occurrence
that could reasonably be expected to result in the failure of any of the
conditions contained in Article VI to be satisfied, promptly upon becoming aware
of the same.

          4.2. Public Announcements. BDM and Dentsu contemplate issuing a
               --------------------
joint press release in connection with the execution and delivery of this
Agreement and/or the closing of the transactions provided for herein. BDM shall
not make, and BDM shall not permit its Affiliates to make, any other public
announcement in respect of this Agreement, the other Related Documents or the
transactions contemplated hereby or thereby without the prior written consent of
Dentsu, which consent shall not be unreasonably withheld or delayed.

                                      15
<PAGE>

                4.3.  Further Actions. (a) BDM shall endeavor to take or cause
                      ---------------
to be taken all actions, and to do or cause to be done all other things,
necessary, proper or advisable in order for BDM to fulfill and perform its
obligations in respect of this Agreement and the Related Documents, and
otherwise to consummate and make effective the transactions contemplated hereby
and thereby.

                (b)   Without limiting the generality of Section 4.3(a), in the
event that for any reason (including as a result of the rescission following the
Closing Date of any repurchase or redemption by TLG or TMG of any shares of
their stock prior to the effective date of the Mergers) the number of shares of
Class B Stock issued to Dentsu on the Closing Date constitute less than 21.6% of
the aggregate number of shares of BDM Common Stock outstanding as of the Closing
Date (treating all shares of BDM Common Stock subject to the Share Replacement
Options and any shares of BDM Common Stock, other than Employee Shares, that
any former employee, shareholder or optionholder of TLG, TMG or any of their
Affiliates has the right to receive as of the Closing Date or becomes entitled
to receive as a result of any event occurring on or before the Closing Date as
being outstanding for such purpose as of the Closing Date) (the "Aggregate
Closing BDM Share Number"), then BDM shall issue to Dentsu, without additional
payment, such number of additional shares of Class B Stock as may be required so
that the aggregate number of shares of Class B Stock issued to Dentsu equals
21.6% of the Aggregate Closing BDM Share Number.

                4.4.  Conduct of BDM Business.  On and after the date hereof to
                      -----------------------
the Closing Date, except as expressly required by this Agreement or as otherwise
expressly consented to by Dentsu in writing, BDM will, and BDM will cause each
member of the BDM Group to:

                (i)  carry on its business in, and only in, the ordinary course
     of business, in substantially the same manner as heretofore conducted, and
     endeavor to preserve intact its present business organization, keep
     available the services of its present officers and significant employees,
     and preserve its relationships with clients, suppliers and others having
     business dealings with it, to the end that its goodwill and going business
     shall be in all material respects unimpaired following the Closing;

                (ii) with respect to BDM only, not (i) declare dividends on any
     class of its capital stock or (ii) redeem or repurchase any shares of any
     class of its capital stock, other than redemptions or repurchases pursuant
     to the BDM Stock Purchase Agreements;

                                      16

<PAGE>

          (iii) not sell, transfer or otherwise dispose of, in a single or
     related series of transactions, a significant business unit of the BDM
     Group (whether such disposition takes the form of a sale of assets, a sale
     of Equity Securities of an entity that carries on such business or
     otherwise) for an aggregate consideration (including the aggregate
     principal amount of any assumed indebtedness) of more than $100,000,000;

          (iv)  with respect to BDM only, not cause or permit any amendment,
     supplement, waiver or modification to or of any of its Organizational
     Documents;

          (v)   not take any action or enter into any agreement that would
     result in the occurrence of a BDM Change of Control; and

          (vi)  not agree or otherwise commit to take any of the actions
     described in the foregoing paragraphs (i) through (v).

          4.5.  Subsequent Financial Statements and Reports. From the date
                -------------------------------------------
hereof to and including the Closing Date, BDM will (i) provide to Dentsu such
management reports as are delivered to the Board of Directors, and (ii) timely
prepare, and promptly deliver to Dentsu, quarterly financial statements, to be
in scope and detail consistent with such quarterly financial statements as
historically distributed to the senior management of the TLG Group and the TMG
Group, respectively, and have previously been delivered to Dentsu.

          4.6.  Issuance of Additional Shares of Class B Stock. BDM shall not
                ----------------------------------------------
issue any shares of Class B Stock to any Person other than to Dentsu in
accordance with this Agreement.

          4.7.  Signatories to BDM Voting Trust Agreement and BDM Stock Purchase
                ----------------------------------------------------------------
Agreement. BDM shall use its best efforts to cause each securities holder of BDM
---------
who became or will become a securities holder of BDM pursuant to the terms of
the Merger Agreement promptly to become a party to the BDM Voting Trust
Agreement and a BDM Stock Purchase Agreement.

                                      17
<PAGE>

                                   ARTICLE V
                             COVENANTS OF DENTSU

          5.1. Satisfaction of Closing Conditions: Notification. Dentsu shall
               ------------------------------------------------
endeavor to bring about the satisfaction as soon as possible of all the
conditions contained in Sections 6.1 and 6.3. Without limiting the generality of
the foregoing, Dentsu shall apply for and prosecute with reasonable diligence
all applications for, and shall endeavor promptly to obtain, such Consents from
such third parties and Governmental Authorities as shall be materially necessary
to permit the consummation of the transactions contemplated by this Agreement
including, without limitation, making the requisite filings with the United
States Federal Trade Commission and the Antitrust Division of the United States
Department of Justice pursuant to the HSR Act. At all times prior to the Closing
Date, Dentsu shall promptly notify BDM and TLG in writing of any fact,
condition, event or occurrence that could reasonably be expected to result in
the failure of any of the conditions contained in Article VI to be satisfied,
promptly upon becoming aware of the same.

          5.2. Public Announcements. BDM and Dentsu contemplate issuing a joint
               --------------------
press release in connection with the execution and delivery of this Agreement
and/or the closing of the transactions provided for herein. Dentsu shall not,
and shall not permit any of its Affiliates to, make any other public
announcement in respect of this Agreement, the Related Documents or the
transactions contemplated hereby or thereby without the prior written consent of
BDM, which consent shall not be unreasonably withheld or delayed.

          5.3. Further Actions. Dentsu shall endeavor to take or cause to be
               ---------------
taken all actions, and to do or cause to be done all other things, necessary,
proper or advisable in order for Dentsu to fulfill and perform its obligations
in respect of this Agreement and the Related Documents to which it is a party,
or otherwise to consummate and make effective the transactions contemplated
hereby and thereby.

                                  ARTICLE VI
                             CONDITIONS TO CLOSING

          6.1. Conditions to Obligations of Each Party. The obligations of BDM
               ---------------------------------------
and Dentsu to consummate the Closing shall be subject to the satisfaction, or
waiver, on or prior to the Closing Date of the following conditions:

                                      18
<PAGE>

          (a) No Injunction, etc.  Consummation of the transactions contemplated
              ------------------
     hereby or by the Related Documents shall not have been restrained, enjoined
     or otherwise prohibited or made illegal by any applicable Law, including
     any order, injunction, decree or judgment of any court or other
     Governmental Authority; and no such Law that would have such an effect
     shall have been promulgated, entered, issued or determined by any court or
     other Governmental Authority to be applicable to this Agreement or the
     Related Documents. No action or proceeding shall be pending or threatened
     by any Governmental Authority or other Person on the Closing Date before
     any court or other Governmental Authority to restrain, enjoin or otherwise
     prevent the consummation of any of the transactions contemplated hereby or
     by the Related Documents, or to recover any material damages or obtain
     other material relief as a result of such transactions, or that otherwise
     relates to the application of any such Law.

          (b) Government Approvals and Consents. All Governmental Approvals and
              ---------------------------------
     Consents required to be made or obtained by any party hereto or any other
     member of the BDM Group and the Dentsu Group, including without limitation
     the expiration or termination of the applicable waiting period pursuant to
     the HSR Act, in connection with the execution and delivery of this
     Agreement and the Related Documents or the consummation of the transactions
     contemplated hereby or thereby shall have been made or obtained.

          6.2. Conditions to Obligations of Dentsu. The obligations of Dentsu to
               -----------------------------------
consummate the Closing shall be subject to the satisfaction, or waiver, on or
prior to the Closing Date of the following additional conditions:

          (a) Representations and Warranties.  The representations and
              ------------------------------
     warranties of BDM contained in Article II and in any other Related Document
     shall be true and correct in all material respects at and as of the date
     hereof and shall be true and correct in all material respects at and as of
     the Closing Date (except to the extent such representations and warranties
     expressly relate to an earlier date, in which case such representations and
     warranties shall be true and correct in all material respects at and as of
     such earlier date).

          (b) Performance of Agreements.  BDM shall have in all material
              -------------------------
     respects duly performed and complied with all agreements, covenants and
     conditions required by this Agreement or any Related Document to be
     performed or complied with by it prior to or on the Closing Date.

                                      19
<PAGE>

     (c) Officer's Certificate. BDM shall have delivered to Dentsu a
         ---------------------
certificate, dated the Closing Date and signed by an officer of BDM, in form
and substance reasonably satisfactory to Dentsu, to the effect set forth in
Sections 6.2(a), 6.2(b) and 6.2(d).

     (d) No Material Adverse Effect. No event, occurrence, fact, condition,
         --------------------------
change, development or effect shall exist or have occurred or come to exist (i)
since the date hereof that, individually or in the aggregate, has had or
resulted in or could reasonably be expected to become or result in, a BDM
Material Adverse Effect, (ii) since the date of the 1998 Balance Sheet that,
individually or in the aggregate, has had or resulted in or could reasonably be
expected to become or result in, a TLG Material Adverse Effect, or (iii) since
December 31, 1998 that, individually or in the aggregate, has had or resulted
in or could reasonably be expected to become or result in, a TMG Material
Adverse Effect.

     (e) Related Documents. Counterparts of each of the following
         -----------------
Related Documents shall have been duly executed by BDM and delivered to Dentsu:

             (1) a Registration Rights Agreement, between Dentsu and BDM,
      substantially in the form of Exhibit B (the "Registration Rights
      Agreement"); and

             (2) an Alliance Agreement, between Dentsu and BDM, substantially in
      the form of Exhibit C (the "Alliance Agreement").

     (f) Restated Charter and By-Laws. (1) An Amended and restated Certificate
         ----------------------------
of Incorporation for BDM, in the form of Exhibit A (the "Restated Charter"),
shall have been duly adopted and filed with the Secretary of State of the State
of Delaware, to become effective on or prior to the Closing Date; and

     (2) The by-laws of BDM shall have been amended to be in the form of Exhibit
D (the "Restated By-Laws").

     (g) Opinions. Dentsu shall have received the following opinions of
         --------
         legal counsel and tax advisors addressed to it and dated the Closing
         Date:

             (1) opinion of Sidley & Austin, counsel to TLG and BDM, dated the
      Closing Date and substantially in the form of Exhibit E as to the matters
      set forth therin;

                                      20

<PAGE>

             (2) opinion of Kirkland & Ellis, counsel to TLG and BDM, dated the
     Closing Date and substantially in the form of Exhibit F as to the matters
     set forth therein;

             (3) opinion of Christian E. Kimball, General Counsel of BDM, dated
     the Closing Date and substantially in the form of Exhibit G as to the
     matters set forth therein; and

             (4) opinion of Kirkland & Ellis, tax counsel to TLG, concerning the
     U.S. federal income tax consequences of the Burnett Merger, dated the
     Closing Date and substantially in the same form as the opinion dated
     January 28, 2000 previously delivered to TLG, and opinion of Arthur
     Andersen LLP, tax adviser to TMG, concerning the U.S. federal income tax
     consequences of the MacManus Merger, dated the Closing Date and
     substantially in the same form as the opinion dated January 28, 2000
     previously delivered to TLG and TMG.

     (h) Corporate and Other Proceedings. All corporate, partnership and other
         --------------------------------
  proceedings of each member of the BDM Group in connection with the
  transactions contemplated by this Agreement and the Related Documents, and all
  documents and instruments incident thereto, shall be reasonably satisfactory
  in form and substance to Dentsu and its counsel, and Dentsu and its counsel
  shall have received all such documents and instruments, or copies thereof,
  certified if requested, as may be reasonably requested.

    6.3. Conditions to Obligations of BDM. The obligation of BDM to consummate
         --------------------------------
the transactions contemplated hereby shall be subject to the satisfaction, or
waiver, on or prior to the Closing Date, of the following additional conditions:

    (a)  Representations and Warranties. The representations and warranties of
         -------------------------------
  Dentsu contained in Article III and in any other Related Document shall be
  true and correct in all material respects at and as of the date hereof and
  shall be true and correct in all material respects at and as of the Closing
  Date (except to the extent such representations and warranties expressly
  relate to an earlier date, in which case such representations and warranties
  shall be true and correct in all material respects, at and as of such earlier
  date).

    (b)  Performance of Agreements. Dentsu shall have in all material respects
         --------------------------
  duly performed and complied with all agreements, covenants and con-

                                      21

<PAGE>

  ditions required by this Agreement to be performed or complied with by it
  prior to or on the Closing Date.

          (c) Officer's Certificate. Dentsu shall have delivered to BDM a
              ---------------------
  certificate, dated the Closing Date and signed by an officer of Dentsu, in
  form and substance reasonably satisfactory to BDM, to the effect set forth
  above in Sections 6.3(a) and 6.3(b).

          (d) Corporate Proceedings. All corporate proceedings of Dentsu in
              ---------------------
  connection with the transactions contemplated by this Agreement and the
  Related Documents, and all documents and instruments incident thereto, shall
  be reasonably satisfactory in form and substance to BDM and its counsel, and
  BDM and its counsel shall have received all such documents and instruments, or
  copies thereof, certified if requested, as may be reasonably requested.

          (e) Alliance Agreement. The Alliance Agreement shall have been duly
              ------------------
  executed and delivered by Dentsu.

          (f) Opinion of Counsel. BDM shall have received the following opinions
              ------------------
  of legal counsel addressed to it and dated the Closing Date:

                    (1) opinion of Debevoise & Plimpton, counsel to Dentsu,
      dated the Closing Date and substantially in the form of Exhibit H as to
      the matters set forth therein (which opinion may rely on the opinion of
      Tokyo Eiwa referred to below as to such Japanese Law matters as Debevoise
      & Plimpton reasonably deems appropriate); and

                    (2) opinion of Tokyo Eiwa, counsel to Dentsu, dated the
      Closing Date and substantially in the form of Exhibit I.

                                  ARTICLE VII
                               PREEMPTIVE RIGHTS

          7.1. Preemptive Rights prior to the IPO. (a) Prior to the IPO and
               ----------------------------------
subject to paragraph (d) below, BDM shall not issue any additional Equity
Securities (other than Employee Shares), unless BDM shall have provided
written notice of such issuance (an "Issuance Notice") to Dentsu at least 45
days prior to the planned date of such issuance. The Issuance Notice shall set
forth (i) the date on which such Equity Securities are to be issued (the
"Issuance Date"), (ii) the per unit price of such Equity

                                      22
<PAGE>

Securities (the "Issuance Price"), (iii) the number of such Equity Securities to
be issued (the "New Equity Securities") (assuming the exercise in full by
Dentsu of its preemptive rights hereunder with respect to such issuance), and
(iv) any other material terms and conditions of such issuance. To the extent
that any property other than the cash is to constitute payment for such New
Equity Securities, the Issuance Price shall be calculated to reflect the fair
market value of such other property as determined in good faith by the Board
of Directors.

          (b)  Subject to paragraph (e) below, Dentsu shall have the right,
exercisable by delivery of written notice (the "Exercise Notice") to BDM during
the 30-day period following the date of the Issuance Notice, to subscribe for up
to 20% of the New Equity Securities, provided that any such New Equity
Securities to be issued to Dentsu shall be shares of Class B Stock, or
securities exchangeable for or convertible into or purchase rights in respect of
Class B Stock, rather than Class A Stock. The Exercise Notice shall set forth
the number of New Equity Securities (the "Exercise Amount") to be purchased by
Dentsu and shall constitute the binding and irrevocable agreement of Dentsu to
purchase the Exercise Amount of the Issuance Date and upon the terms and
conditions set forth in the Issuance Notice. Should Dentsu fail to elect to
purchase the full number of New Equity Securities that it has the right to
purchase, BDM may, at its option, issue some or all of the remaining such
securities (in the form of shares of Class A Stock, or securities exchangable
for or convertible into or purchase rights in respect of Class A Stock) to one
or more other Persons.

          (c)  On the Issuance Date (assuming the delivery of an Exercise
Notice, and subject to paragraph (d) below):

          (1) BDM shall (i) allot to Dentsu a number of New Equity Securities
     (in the form of shares of Class B Stock, or securities exchangable for or
     convertible into or purchase rights in respect of Class B Stock) equal to
     the Exercise Amount; (ii) issue and deliver to Dentsu, free and clear of
     any Liens, one or more certificates or other appropriate instruments
     representing such New Equity Securities registered in the name of Dentsu;
     (iii) deliver an opinion of counsel to BDM, reasonably acceptable to
     Dentsu, addressing favorably the due authorization and valid issuance of
     such New Equity Securities; and (iv) deliver a certificate signed by a duly
     authorized officer of BDM stating that, upon delivery to Dentsu of New
     Equity Securities and payment therefor by Dentsu, Dentsu will acquire good
     and valid title thereto, free and clear of any Lien (other than any Lien
     created by Dentsu) without violation of any preemptive rights, and in the
     case of the issuance of shares Class B Stock, such shares will be fully
     paid and nonassessable; and

                                      23
<PAGE>

               (2) Dentsu will pay to BDM, by wire transfer of immediately
          available funds to the account of BDM designated by BDM to Dentsu at
          least four Business Days prior to the Issuance Date, an amount equal
          to the product of (x) the Exercise Amount and (y) the Issuance Price.

               (d) If in connection with any issuance of New Equity Securities
     in a business combination or another strategic transaction where the
     consideration to be received by BDM is other than cash the BDM Board of
     Directors determines in good faith that it would not be practical to
     deliver to Dentsu a related Issuance Notice 45 days prior to the Issuance
     Date, BDM shall deliver such Issuance Notice to Dentsu as far in advance of
     such Issuance Date as it so determines to be practical (but in any event no
     later than one Business Day prior to such Issuance Date). In such event,
     Dentsu will still have 30 days after receipt of such Issuance Notice to
     deliver an Exercise Notice to BDM, and in the event it does so, the parties
     shall proceed to consummate the issuance of the Exercise Amount of New
     Equity Securities to Dentsu as set forth in paragraph (c) above on the
     related Issuance Date (if practicable) or as soon as practicable after the
     delivery of such Exercise Notice (if issuance on the related Issuance Date
     is not practicable). The parties further acknowledge that BDM will have no
     obligation to delay the issuance of the New Equity Securities to be issued
     to other investors pending the exercise by Dentsu of its preemptive rights
     with respect to such issuance.

               (e) If in connection with the issuance of any New Equity
     Securities constituting Convertible Securities or Stock Purchase Rights
     ("New Derivative Securities") the BDM Board of Directors determines in good
     faith that it is impracticable to grant Dentsu the preemptive rights with
     respect to such securities at the time of the issuance thereof, then BDM
     shall give written notice to Dentsu to such effect (which notice shall also
     include the information otherwise to be set forth in an Issuance Notice
     with respect to such New Equity Securities pursuant to Section 7.1(a)). In
     such event, notwithstanding the preceding provisions of this Section 7.1,
     Dentsu shall not have the right to purchase up to 20% of such New
     Derivative Securities at the time of the issuance thereof. Rather, Dentsu
     shall have the right to purchase, within 30 days after it has received
     notice from BDM of the conversion, exchange or exercise of any such New
     Derivative Securities (which notice shall be provided by BDM to Dentsu as
     soon as practicable after any such conversion or exchange), a number of
     shares of Class B Stock equal to 25% of the number of shares of BDM Common
     Stock into or for which such New Derivative Securities have been so
     converted, exchanged or exercised, at a purchase price per share equal to
     the sum of (i) the aggregate consideration, if any, paid to BDM for all
     such New Derivative Securities divided by the total number of shares of BDM
     Common Stock into or for which such New Derivative securities are
     convertible, exchangeable or exercisable, plus (ii) the price per share of
     BDM Common Stock, if any,

                                      24
<PAGE>

paid or payable by the holders of such New Derivative Securities upon the
conversion, exchange or exercise thereof.

                 7.2. Preemptive Rights with respect to the IPO. (a) At least 45
                      ------------------------------------------
days prior to the date of the initial filing (the "Initial Filing Date") by BDM
of a registration statement under the Securities Act with respect to the IPO
(the "IPO Registration Statement"), BDM shall provide to Dentsu written notice
(the "IPO Issuance Notice") of its intention to so file. The IPO Issuance Notice
shall set forth (i) the date on which the IPO is expected to occur, (ii) the
number of shares of BDM Common Stock expected to be issued by BDM in the IPO
assuming no exercise of any Over-Allotment Option (the "Base IPO Share Number")
(iii) the number of shares of BDM Common Stock potentially issuable with respect
to any Over-Allotment Option, assuming the full exercise thereof (the
"Over-Allotment Share Number"), (iv) the expected price range per share of BDM
Common Stock to be issued in the IPO (the "Estimated Price Range"), and (v) and
other terms and conditions of or fact material to such issuance. The IPO
Issuance Notice shall also be accompanied by a copy of the most recent draft, if
one exists, of the IPO Registration Statement.

                 (b)  Dentsu shall have the right to subscribe for and to
purchase from BDM, on the date of and contingent upon the closing of the IPO, a
number of shares of Class B Stock equal to up to 25% of the Base IPO Share
Number, plus an additional number of shares of Class B Stock equal to up to 25%
of the Over-Allotment Share Number in the event and to the extent that the
Over-Allotment Option is exercised. Such subscription right shall be
exercisable by delivery of written notice (the "IPO Exercise Notice") to BDM at
any time prior to the later of the 30/th/ day following the date of the IPO
Issuance Notice and the second day prior to the initial filing of the IPO
Registration Statement. The IPO Exercise Notice shall set forth (i) the number
of shares of Class B Stock (the "Dentsu Base Shares") to be purchased by Dentsu
in connection with the IPO assuming no exercise of any Over-Allotment Option
(which number shall not exceed 25% of the Base IPO Share Amount), and (ii) the
number of shares of Class B Stock (the "Dentsu Over-Allotment Shares" and,
together with the Dentsu Base Shares, the "Dentsu IPO Shares") to be purchased
by Dentsu in connection with the exercise of the Over-Allotment Option assuming
such option is exercised in full (which number shall not exceed 25% of the
Over-Allotment Share Number). The IPO Exercise Notice shall constitute the
irrevocable commitment of Dentsu to purchase (1) on the date of the closing of
the IPO, the Dentsu Base Shares and (2) on the date of the closing of any
issuance of BDM Common Stock pursuant to any exercise of the Over-Allotment
Option, the number of shares of Class B Stock equal to the number of shares
being issued on such date pursuant to the Over-Allotment Option multiplied by a
fraction equal to (x) the number of Dentsu Over-Allotment Shares divided by (y)
the Over-Allotment Share Number, subject in each

                                      25

<PAGE>

case only to the IPO Exercise Notice not having been withdrawn or modified in
the limited circumstances set forth in Section 7.2(d).

          (c) Prior to the date of the closing of the IPO, provided that Dentsu
has delivered to BDM an IPO Exercise Notice, BDM will deliver to Dentsu,
promptly upon the filing thereof, a copy of (x) the IPO Registration Statement,
(y) each amendment thereto, and (z) each "prospectus" (as defined in Section
2(a)(10) of the Securities Act) delivered by BDM to any offeree with respect to
the IPO. BDM will also provide Dentsu written notice of any change in the
Estimated Price Range (a "Pricing Change Notice") or in the Base IPO Share
Number (an "Issue Size Change Notice").

          (d) Dentsu shall have the right to withdraw or modify the IPO Exercise
Notice only as follows:

          (1) If BDM delivers an Issue Size Change Notice setting forth a
   decrease in the Base IPO Share Number from that set forth in the IPO Issuance
   Notice (or the most recent Issue Size Change Notice), the number of Dentsu
   Base Shares shall be automatically reduced to 25% of the Base IPO Share
   Number set forth in such Issue Size Change Notice, provided that if the
   number of Dentsu Base Shares set forth in the IPO Exercise Notice or in the
   most recent Share Reduction Notice, as applicable, constituted less than 25%
   of the Base IPO Share Number set forth in the original IPO Issuance Notice or
   the most recent Issue Size Change Notice, as applicable (such percentage, the
   "Prior Notice Percentage"), Dentsu shall have the right, upon notice to BDM
   (a "Share Reduction Notice") given within 5 days of Such Issue Size Change
   Notice, to further reduce the number of Dentsu Base Shares to a percentage of
   the revised Base IPO Share Number not less than the Prior Notice Percentage.

          (2) If BDM delivers an Issue Size Change Notice setting forth an
   increase in the Base IPO Share Number from that set forth in the IPO Issuance
   Notice (or the most recent Issue Size Change Notice), Dentsu shall have the
   right, upon notice to BDM given within 5 days of such Issue Size Change
   Notice, to increase the number of Dentsu Base Shares to an amount not greater
   than 25% of the Base IPO Share Number set forth in such Issue Size Change
   Notice.

          (3) If BDM delivers a Pricing Change Notice setting forth an Estimated
   Price Range having an upper limit in excess of 200% of the upper limit of the
   Estimated Price Range set forth in the IPO Issuance Notice, Dentsu shall have
   the right, upon notice to BDM given within 5 days of such Pricing Change
   Notice, to
                                      26
<PAGE>

     either (x) withdraw the IPO Exercise Notice, or (y) to reduce the number of
     Dentsu Base Shares and/or the number of Dentsu Over-Allotment Shares.

          (4)  Dentsu shall have the right to withdraw the IPO Exercise Notice,
     exercisable by delivery of written notice thereof to BDM, in the event that
     the closing of the IPO has not occurred by the first anniversary of the
     date of the IPO Exercise Notice.

          (e)  On the closing date of the IPO and on any subsequent date of any
closing of any issuance of BDM Common Stock pursuant to the Over-Allotment
Option:

          (1)  BDM shall (i) allot to Dentsu a number of shares of Class B Stock
     equal to the number of Dentsu IPO Shares to be purchased on such date; (ii)
     issue and deliver to Dentsu, free and clear of any Liens (other than Liens
     created by Dentsu), one or more certificates representing such Dentsu IPO
     Shares, registered in the name of Dentsu; (iii) deliver an opinion of
     counsel to BDM, reasonably acceptable to Dentsu, addressing favorably the
     due authorization and valid issuance of such Dentsu IPO Shares, and (iv)
     deliver a certificate signed by a duly authorized officer of BDM stating
     that, upon delivery to Dentsu of such Dentsu IPO Shares, and payment
     therefor by Dentsu, Dentsu will acquire good and valid title to such
     shares, free and clear of any Lien (other than any Lien created by Dentsu)
     without violation of any preemptive rights, and such shares shall be fully
     paid and nonassessable; and (v) deliver to Dentsu a copy of the final
     prospectus with respect to the IPO, together with a representation that
     such final prospectus is complete and correct in all material respects and
     did not contain any untrue statement of a material fact or omit any
     material fact required to make the statements therein not misleading.

          (2)  Dentsu will pay to BDM, by wire transfer of immediately available
     funds to an account designated by BDM at least four Business Days prior to
     the closing date of the IPO, an amount equal to the product of (x) the
     number of Dentsu IPO Shares and (y) the price per share of BDM Common Stock
     set forth on the cover of the final prospectus with respect to the IPO less
     all underwriting commissions and selling discounts included in such price.

          7.3 Termination of Preemptive Rights. The preemptive rights granted to
              --------------------------------
Dentsu pursuant to Sections 7.1 and 7.2 above shall automatically terminate in
the event of any termination of the Alliance Agreement by BDM pursuant to clause
(3) of Section 7(a) thereof.

                                      27
<PAGE>

          7.4. Issuance of Class B Stock. BDM agrees that it will not issue or
               -------------------------
sell any shares of Class B Stock except pursuant to this Agreement, or as
expressly permitted by the Restated Charter as in effect from time to time.

                                 ARTICLE VIII
                      STANDSTILL AND TRANSFER PROVISIONS

          8.1. Standstill. (a) Except as provided in Subsections (b) and (c)
               ----------
below, Dentsu shall not at any time, and shall cause its Affiliates not to,
directly or indirectly, except with the prior written consent of the Board of
Directors:

          (i) acquire, or offer or propose to acquire, record or beneficial
     ownership of any additional shares of capital stock of BDM or any
     additional Convertible Securities or Stock Purchase Rights if as a result
     of such acquisition Dentsu and its Affiliates would become the record or
     beneficial owner of the greater of (x) (1) until the third anniversary of
     the Closing Date, more than 20% of the total number of outstanding shares
     of capital stock of BDM, or (2) thereafter, more than 25% of the total
     number of outstanding shares of capital stock of BDM, in each case
     calculated on a fully-diluted basis (taking into account all Employee
     Shares, whether or not issued, as well as any Share Replacement Options)
     and (y) the sum of (A) the number of shares of capital stock of BDM owned
     by any other Person or group of Persons acting in concert (other than any
     Employee Holder(s)), plus (B) 5% of the total number of outstanding shares
     of capital stock of BDM, calculated on a fully-diluted basis (taking into
     account all Employee Shares, whether or not issued, as well as any Share
     Replacement Options);

         (ii) make, or in any way cause or participate in, any "solicitation" of
     "proxies" (as such terms are defined or used in Rule 14a-1 under the
     Exchange Act) with respect to BDM, become a "participant" in any "election
     contest" (as such terms are defined or used in Rule 14a-1 under the
     Exchange Act) with respect to BDM, or seek to advise, encourage or
     influence any Person with respect to the voting of any voting securities of
     BDM;

        (iii) initiate, propose or otherwise solicit (or participate in the
     solicitation of) stockholders of BDM for the approval of one or more
     stockholder proposals, as described in Rule 14a-8 under the Exchange Act or
     otherwise, or induce or attempt to induce any other Person to initiate,
     propose or solicit any such stockholder proposal;

                                      28
<PAGE>

     (iv)   nominate for election or otherwise seek to place any representative
  on the Board of Directors, other than the nomination and election of the
  "Class B Directors" as defined in and pursuant to Article IV of the Restated
  Charter;

     (v)    in any manner, agree, attempt, seek or propose (or make any request
  for permission) to deposit any BDM Common Stock owned by Dentsu or any of its
  Affiliates, directly or indirectly, in any voting trust or similar arrangement
  or to subject any BDM Common Stock owned by Dentsu or any of its Affiliates to
  any other voting or proxy agreement, arrangement or understanding;

     (vi)   form, join or in any way participate in any group, act in concert
  with any other Person or otherwise take any action or actions which would
  cause it to be deemed a "person" (for the purposes of Section 13(d) of the
  Exchange Act) with respect to any shares of capital stock of BDM;

     (vii)  participate in or encourage the formation of any group (A) which
  owns, seeks or offers to acquire beneficial ownership of any shares of capital
  stock of BDM or any Convertible Securities or Stock Purchase Rights or (B)
  which seeks or offers to affect control of BDM for the purpose of
  circumventing any provision of this Agreement;

     (viii) (A) solicit, seek or offer to effect, (B) negotiate with or provide
  any information to any party with respect to, (C) make any public
  announcement, proposal, offer or filing under the Exchange Act, any similar
  statute or otherwise, or take any action to cause BDM to make any such
  announcement, proposal, offer or filing with respect to: (1) any form of
  business combination or similar transaction involving BDM or any Subsidiary
  thereof, including, without limitation, a merger, tender or exchange offer,
  (2) any form of restructuring, recapitalization or similar transaction in
  respect of BDM or (3) any disposition of all or substantially all of the
  assets of BDM;

     (ix)   take any action challenging the validity or enforceability of any
  covenant or agreement contained in this Section 8.1; or

     (x)    instigate, advise, assist, encourage or finance (or assist or
  arrange financing for) any Person in connection with any of the foregoing;

provided that nothing in this Section 8.1 shall (A) prohibit any person who is
serving as a Director from, solely in his or her capacity as such Director, (x)
taking any action or making any statement at any meeting of the Board of
Directors or of any committee

                                      29
<PAGE>

thereof; (y) making any statement to any Director, officer or agent of BDM; or
(z) making any statement or disclosure required under the federal securities
laws or other applicable laws; (B) prohibit Dentsu or any of its Affiliates from
taking any action in opposition to any "solicitation" of "proxies" (as such
terms are defined or used in Rule 14a-1 under the Exchange Act) with respect to
BDM by any Person other than BDM; or (C) restrict any private communications
between Dentsu or any of its Affiliates and any person designated by Dentsu as a
Director.  BDM will furnish to Dentsu from time to time promptly, upon request,
at BDM's expense a calculation showing the percentage of BDM's capital stock
owned at the time by Dentsu and its Affiliates on a fully diluted basis (taking
into account all authorized options, whether issued or unissued).

          (b) Notwithstanding Subsection (a) above, nothing contained in this
Section 8.1 or Section 8.2 shall prohibit Dentsu or any of its Affiliates from
(i) tendering any shares of BDM Common Stock into any tender or exchange offer
made by any person other than Dentsu or an Affiliate of Dentsu, unless the Board
of Directors has recommended that stockholders of BDM reject such offer and such
recommendation has not been withdrawn (it being understood that Dentsu or any
such Affiliate, as the case may be, may not tender any shares of BDM Common
Stock pursuant to such tender or exchange offer until the Board of Directors has
publicly taken a position with respect to such offer or has stated that it will
remain neutral or is unable to take a position with respect thereto), in
accordance with Rule 14e-2 under the Exchange Act, any successor regulation or
otherwise; (ii) bidding or otherwise participating in any auction for BDM or any
Subsidiary of BDM in the event that the Board of Directors of BDM has determined
to sell BDM or such Subsidiary through such a procedure; (iii) purchasing at any
time before and upon an IPO, additional shares of BDM Common Stock in accordance
with Sections 7.1, 7.2 and 9.2.

          (c)  Dentsu's and its Affiliates' obligations contained in Subsection
(a) above shall be suspended and shall cease to be in effect if, after the IPO,
any Person or group of Persons acting in concert (other than Employee
Holder(s)), acquires in a single transaction or a series of related
transactions, other than a Permitted Issuance, record or beneficial ownership of
an aggregate number of shares of BDM Common Stock (a "Threshold Position") equal
to or exceeding 20% of the total number of shares of a capital stock of BDM then
outstanding, calculated on a fully-diluted basis (taking into account all
Employee Shares, whether or not issued and any Share Replacement Options).  Such
suspension of Dentsu's and its Affiliates' obligations hereunder shall continue,
and Dentsu shall have no obligations under Subsection (a) above, until such
time, if ever, as of which no such Person or group of Persons acting in concert,
other than Persons who acquired shares in a Permitted Issuance, owns
beneficially or of record a Threshold Position, at which time Dentsu's and its
Affiliates' obligations contained in Subsection (a) above shall

                                      30
<PAGE>

be fully reinstated and thereafter applicable in accordance with their terms
(provided that any actions taken by Dentsu during the time that such obligations
were suspended shall remain valid and Dentsu shall have no obligation to
reverse such actions or do anything else with respect thereto).

          (d)  To the extent that Dentsu and its Affiliates are permitted to
purchase additional shares of BDM Common Stock under the restrictions set forth
in Subsection (a) above, Dentsu shall effect, and shall cause its Affiliates to
effect, each such purchase: (i) in compliance with any policy adopted by the BDM
Board of Directors regarding transactions in securities of BDM by Persons with
access to inside information, (ii) in compliance with all applicable securities
laws and (iii) with respect to purchases of shares on any stock exchange or
securities market, pursuant to an orderly plan intended to minimize the
potential disruptive effect of such purchases on the public trading markets for
BDM's securities.

          8.2. Transfer Restrictions. (a) Dentsu may not Transfer any shares of
               ---------------------
BDM Common Stock held by it except: (i) in a Permitted Intercompany Transfer
pursuant to Subsection (b) below, (ii) at any time following the earlier of the
second anniversary of the Closing Date or the termination of the Alliance
Agreement, in a Permitted Third Party Sale pursuant to Subsection (c) below,
(iii) at any time following the closing of an IPO, pursuant to Subsection (d)
below; or (iv) otherwise with the approval of the Board of Directors.

          (b)  Dentsu may at any time (whether prior to or following the IPO)
Transfer any shares of BDM Common Stock pursuant to a Permitted Intercompany
Transfer.  A "Permitted Intercompany Transfer" means a transfer of some or all
of the shares of BDM Common Stock then held by Dentsu to a direct or indirect
wholly-owned Subsidiary of Dentsu (a "Permitted Dentsu Transferee"), provided
that (x) such transferee shall have first agreed in writing in a form reasonably
satisfactory to BDM to be bound by the provisions of this Agreement as if it
were Dentsu hereunder, (y) such transfer shall be in compliance with the
provisions of Subsection (e) below, and (z) Dentsu shall be responsible for all
Taxes and other charges imposed in connection with such transfer (including any
increased withholding taxes that may result therefrom). Upon any such transfer,
any reference to "Dentsu" in this Agreement shall be deemed to be a reference to
Dentsu and/or such Permitted Dentsu Transferee, as applicable. For so long as
such Permitted Dentsu Transferee continues to hold shares of BDM Common Stock
transferred to it pursuant to this Section 8.2(b), Dentsu shall not permit such
Permitted Dentsu Transferee to cease to be a direct or indirect wholly-owned
Subsidiary of Dentsu unless Dentsu first causes such Permitted Dentsu Transferee
to transfer such shares to another Permitted Dentsu Transferee in a Permitted
Intercompany Transfer.

                                      31
<PAGE>

          (c) Subject to Subsections (e) and (f) below, commencing on the
earlier of (x) the second anniversary of the Closing Date and (y) any
termination of the Alliance Agreement in accordance with its terms, Dentsu may
transfer all or part of the shares of BDM Common Stock held by it in a private
sale to a Permitted Purchaser (a "Permitted Third Party Sale"), provided that
this Section 8.2(c) shall terminate on the closing of the IPO and thereafter any
transfer other than a Permitted Intercompany Transfer shall be made pursuant to
Section 8.2(d). It shall be a condition to the consummation of any such
Permitted Third Party Sale that the shares of BDM Common Stock have first been
offered to BDM in accordance with the provisions of Section 9.2(b). It shall be
a further condition to the consummation of any such Permitted Third Party Sale
that the Permitted Purchaser shall have entered into an agreement with BDM in
such form as BDM may reasonably prescribe (a "Permitted Purchaser Agreement")
pursuant to which: (i) such Permitted Purchaser represents and warrants to BDM
that it is a "Permitted Purchaser" as defined herein, (ii) for so long as such
Permitted Purchaser continues to hold any of the shares of BDM Common Stock
transferred to it by Dentsu (the "PTP Shares"), it will be bound by and entitled
to the benefits of the provisions of Sections 8.1, 8.2, 8.3, 8.4, 13.4 and the
other relevant Sections of Article XIII of this Agreement, and Article XI (as it
applies to any failure of BDM to perform any covenant or agreement under this
Agreement or the Registration Rights Agreement or to fulfill any obligation in
respect of this Agreement or the Registration Rights Agreement) and Article XII,
as if it were "Dentsu" for the purposes thereof (it being acknowledged, however,
that (A) Dentsu will not be entitled to assign to such Permitted Purchaser, and
such Permitted Purchaser will not succeed to, any corporate governance rights
granted to Dentsu pursuant to Article IX, any preemptive rights granted to
Dentsu pursuant to Section 7.1 or 7.2 or any other rights of Dentsu not listed
above, and (B) Dentsu may also assign certain rights under the Registration
Rights Agreement to such Permitted Purchaser pursuant to the applicable
provisions of such agreement), (iii) such Permitted Purchaser makes
representations and warranties to BDM with respect to the purchase of such PTP
Shares and entering into such Permitted Purchaser Agreement comparable to those
made by Dentsu in Sections 3.1, 3.2, 3.3, 3.4 and 3.5 and (iv) such Permitted
Purchaser agrees that prior to the completion of an IPO, such Permitted
Purchaser may only transfer such PTP Shares in a Permitted Third Party Sale to a
subsequent Permitted Purchaser.

          (d) Subject to Subsection (f) below, at any time following the closing
of an IPO, Dentsu may Transfer any shares of BDM Common Stock then held by it
(i) in one or more public offerings pursuant to an effective registration
statement under the Securities Act, (ii) pursuant to Rule 144 under the
Securities Act, (iii) through sales into any tender or exchange offer, to the
extent permitted by Section 8.1(b); or (iv) in privately negotiated sales not
effected on any securities exchange or through any automatic quotation system,
provided that such sale (together with any previous sales by Dentsu to the same
Person or

                                       32
<PAGE>

group of related Persons) would not to the knowledge of Dentsu result in the
transfer by Dentsu of more than 2% of the total number of outstanding shares of
BDM Common Stock (calculated on a fully diluted basis) to any one Person or
group of related Persons.

          (e)  Dentsu may not Transfer any shares of BDM Common Stock except (i)
pursuant to an effective registration statement under the Securities Act or an
exemption from the registration provisions thereof, and (ii) in compliance with
any applicable state or foreign securities laws. No such Transfer of such
securities other than pursuant to such an effective registration statement or
pursuant to Rule 144 under the Securities Act shall be valid or effective unless
Dentsu shall have delivered to BDM a legal opinion in form and substance
reasonably satisfactory to BDM to the effect that such proposed Transfer is
exempt from the registration requirements of the Securities Act. In the case of
any Transfer of securities by Dentsu under Rule 144 under the Securities Act,
Dentsu will provide BDM with a copy of any certificate provided by Dentsu to the
broker or market-maker effecting such Transfer.

          (f)  Dentsu may not Transfer any shares of Class B Stock pursuant to
Subsection (c) or (d) above, provided that nothing shall prohibit Dentsu from
converting any shares of Class B Stock into shares of Class A Stock and
Transferring such shares of Class A Stock pursuant to such provisions.

          8.3. Legends. Each certificate representing shares of BDM Common Stock
               -------
issued to Dentsu, and each certificate representing shares of BDM Common Stock
issued to any transferee, shall bear the following legends:

     "DURING THE TERM OF THE INVESTMENT AGREEMENT DATED MARCH 14, 2000 (THE
     "AGREEMENT") AMONG BDM, INC. (THE "COMPANY") AND DENTSU INC., THE SHARES
     REPRESENTED BY THIS CERTIFICATE (THE "SHARES") MAY ONLY BE TRANSFERRED IN A
     "PERMITTED THIRD PARTY SALE", OR IN A "PERMITTED INTERCOMPANY TRANSFER" (AS
     THOSE TERMS ARE DEFINED IN THE AGREEMENT) OR AS OTHERWISE SPECIFIED IN THE
     AGREEMENT.

     "THE SHARES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
     AMENDED (THE "ACT"), OR ANY STATE SECURITIES LAW. NO TRANSFER OF THE SHARES
     SHALL BE VALID OR EFFECTIVE UNLESS SUCH TRANSFER IS MADE (A) PURSUANT TO AN
     EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT OR PURSUANT TO AN APPLICABLE
     EXEMPTION

                                       33
<PAGE>

     FROM THE REGISTRATION REQUIREMENTS THEREOF, (B) IN COMPLIANCE WITH ANY
     APPLICABLE STATE SECURITIES LAWS AND (C) IN COMPLIANCE WITH THE ADDITIONAL
     TRANSFER RESTRICTIONS AND REQUIREMENTS SET FORTH IN THE AGREEMENT."

          8.4.   Registration Rights. Dentsu shall have the registration rights
                 -------------------
set forth in the Registration Rights Agreement.

                                  ARTICLE IX
                        GOVERNANCE AND OTHER AGREEMENTS

          9.1.   Governance. (a) Dentsu shall have the rights set forth in the
                 ----------
Restated Charter to elect Directors.

          (b)    At least 5 days prior to each meeting of the Board of
Directors, the Secretary of BDM shall furnish to each Director an agenda for
such meeting. The agenda for each Board of Directors meeting shall include any
item which any of the Directors has delivered for inclusion therein in writing
to the Secretary of BDM at least 8 days prior to the date scheduled for such
meeting. The provisions of this Section 9.1(b) shall only apply for so long as
Dentsu and/or one or more Permitted Dentsu Transferees beneficially own at least
5% of the issued and outstanding BDM Common Stock.

          (c)(i) For so long as Dentsu and/or one or more Permitted Dentsu
Transferees beneficially own at least 15% of the total number of outstanding
shares of BDM Common Stock, Dentsu will be entitled to designate one member of
each principal committee of the Board of Directors that may exist from time to
time, including, to the extent such committees exist, the Executive Committee,
the Audit Committee, the Compensation Committee and the Nominating Committee,
subject to applicable rules of the Commission and any stock exchange on which
the BDM Common Stock is listed regarding requirements for the independence of
members of such Committees or other relevant matters.

          (ii)   At least 5 days prior to each meeting of any principal
committee of the Board of Directors to which Dentsu is entitled to designate a
member pursuant to Section 9.1(c)(i), the Secretary of BDM shall furnish to each
member of such committee an agenda for such meeting. The agenda for each such
committee meeting shall include any item which any of the members thereof has
delivered for inclusion therein in writing to the Secretary of BDM at least 8
days prior to the date scheduled for such meeting.

                                       34
<PAGE>

          (d)   Prior to the IPO and provided Dentsu and/or one or more
Permitted Dentsu Transferees beneficially own at least 15% of the total number
of outstanding shares of BDM Common Stock, BDM shall take all actions necessary
to ensure that none of the actions listed below is taken without Dentsu's Prior
Approval:

          (i)   any acquisition in a single or series of related transactions,
     by BDM or any Subsidiary of BDM, directly or indirectly (whether such
     acquisition takes the form of a purchase of assets, a purchase of Equity
     Securities, by merger or otherwise), of any Major Competitor (as such term
     is defined in the Alliance Agreement);

          (ii)  any disposition, in a single or series of related transactions,
     by BDM or any Subsidiary of BDM of a significant business unit of the BDM
     Group (whether such disposition takes the form of a sale of assets, a sale
     of Equity Securities of an entity that carries on such business or
     otherwise) for an aggregate consideration (including the aggregate
     principal amount of any assumed indebtedness) of more than $100,000,000;

          (iii) making of any investment, or establishment of any alliance,
     joint venture or other similar cooperative arrangement (other than a
     Permitted Joint Venture), by BDM or any of its Subsidiaries with or in any
     Major Competitor (as such term is defined in the Alliance Agreement) of
     Dentsu;

          (iv)  dismissal or appointment of the Chief Executive Officer of BDM;

          (v)   any change in the principal external auditor for the BDM Group,
     provided that Dentsu will not unreasonably withhold or delay giving
     Dentsu's Prior Approval to any such change where the new auditor is one of
     the "Big 5" accounting firms as of the date hereof or firms of equivalent
     stature at the time of such proposed change;

          (vi)  the occurrence of any material transaction or the entering into
     effect of any material arrangement between BDM or any BDM Subsidiary, on
     the one hand, and any shareholder thereof (other than Dentsu or, in the
     case of a BDM Subsidiary, BDM or any other BDM Subsidiary holding shares
     thereof) or any Affiliate of such shareholder (other than an Employment
     Related Transaction or Arrangement) unless (A) such transaction or
     arrangement is fully disclosed to Dentsu or during any period when an
     individual appointed by Dentsu is serving as a Director, to the Board of
     Directors of BDM and (B) the terms of such transaction or arrangement are
     as favorable to BDM or such Subsidiary as terms that

                                       35
<PAGE>

     would have been obtainable at the time for a comparable transaction or
     arrangement in arm's length dealings with an unrelated third person; and

          (vii)  any issuance of shares of BDM Common Stock to Employees in
     excess of the number of authorized Employee Shares, or any issuance of
     Employee Shares at a price per share less than the per share fair market
     value of the BDM Common Stock (as determined in good faith by the Board of
     Directors or the Compensation Committee thereof) as of (A) the date of
     grant of the stock option or other incentive award pursuant to which such
     Employee Shares are being issued or (B) if such Employee Shares are being
     issued other than pursuant to a stock option or other incentive award, the
     date of issuance of such shares.

          (e)    Until the earlier of (x) the closing of the IPO and (z) the
second anniversary of the Closing Date, and provided Dentsu and/or one or more
Permitted Dentsu Transferees beneficially own at least 15% of the total number
of outstanding shares of BDM Common Stock, BDM shall not take any action or
enter into any agreement that would result in the occurrence of a BDM Change of
Control without Dentsu's Prior Approval.

          9.2.   Rights of First Offer. (a) In the event that the IPO has not
                 ---------------------
taken place prior to the second anniversary of the Closing Date, from such
second anniversary until the earlier of (x) the closing of the IPO and (y) the
fifth anniversary of the Closing Date, BDM shall not agree to any transaction
resulting in a BDM Change of Control (a "BDM COC Transaction") except pursuant
to the following procedures:

          (1)    BDM shall give Dentsu a written notice (a "COG Notice") stating
     that BDM is contemplating a BDM COC Transaction and setting forth in
     reasonable detail the material terms of the proposed transaction, including
     the price to the extent determined.

          (2)    During the 45-day period ("Dentsu First Offer Period")
     following receipt of the COC Notice by Dentsu, Dentsu shall have an
     exclusive right to negotiate with BDM with respect to a BDM COC
     Transaction, which negotiations shall be conducted in good faith but
     neither party shall be under any obligation to commit to such a
     transaction. During the Dentsu First Offer Period, BDM shall not directly
     or indirectly solicit or encourage any inquiries or proposals for, or enter
     into or continue any discussions with respect to, any BDM COC Transaction
     with any third party.

                                       36
<PAGE>

          (3)  At any time during the Dentsu First Offer Period, Dentsu may give
     BDM a written notice (a "Dentsu Offer Notice") offering to purchase 100% of
     the outstanding voting capital stock of BDM (other than shares of BDM
     Common Stock owned by Dentsu), which notice shall set forth the purchase
     price and other material terms of the offer.

          (4)  BDM may accept the offer set forth in the Dentsu Offer Notice by
     delivering written notice of irrevocable acceptance thereof to Dentsu at
     any time during the 30 days following the receipt of the Dentsu Offer
     Notice, in which case the parties shall proceed to consummate the
     transaction promptly and in accordance with the terms and conditions of the
     offer, subject to receipt of any required third party approvals or
     Governmental Approvals, compliance with all Laws applicable thereto and the
     absence of any injunction or similar legal order preventing such
     transaction. If BDM has not accepted the offer set forth in the Dentsu
     Offer Notice within such 30-day period, BDM will have been deemed to have
     rejected such offer on the last day of such 30-day period.

          (5)  If BDM does not accept the offer set forth in the Dentsu Offer
     Notice within 30 days following receipt thereof, or if no Dentsu Offer
     Notice is given by Dentsu during the Dentsu First Offer Period, BDM shall
     have until the 180/th/ day following the expiration of the Dentsu First
     Offer Period (if no Dentsu Offer Notice has been given) or the date of
     rejection by BDM of the offer set forth in the Dentsu Offer Notice (if such
     a notice has been given), as applicable, to negotiate and consummate a BDM
     COC Transaction with a third party at a price and on terms and conditions
     no less favorable to BDM than those specified in the Dentsu Offer Notice,
     if any. If a BDM COC Transaction is not consummated within such 180-day
     period, BDM shall not be permitted to agree to a BDM COC Transaction
     pursuant to this Section 9.2(a) without again complying with each
     requirement in this Section 9.2(a).

          (b)  Dentsu shall not consummate any Permitted Third Party Sale
pursuant to Section 8.2(c) without having first complied with the following
procedures:

          (1)  Dentsu shall give BDM a written notice (a "Transfer of Common
     Stock Notice") stating that Dentsu is contemplating the transfer of all or
     part of the shares of BDM Common Stock held by it in a private sale (a
     "Transfer of Common Stock") and setting forth in reasonable detail the
     material terms of the proposed transaction, including the number of shares
     of BDM Common Stock that Dentsu intends to transfer (the "Offered Shares")
     as well as the price to the extent determined.

                                       37
<PAGE>

          (2)  During the 15 Business Day period ("BDM First Offer Period")
     following receipt of the Transfer of Common Stock Notice by BDM, BDM shall
     have an exclusive right to negotiate with Dentsu with respect to a Transfer
     of Common Stock to BDM or another Person or Persons designated by BDM,
     which negotiations shall be conducted in good faith but neither party shall
     be under any obligation to commit to such a transaction. During the BDM
     First Offer Period, Dentsu shall not directly or indirectly solicit or
     encourage any inquiries or proposals for, or enter into or continue any
     discussions with respect to, any Transfer of Common Stock with any third
     party.

          (3)  At any time during the BDM First Offer Period, BDM may give
     Dentsu a written notice (a "BDM Offer Notice") offering to purchase 100% of
     the Offered Shares, which notice shall set forth the purchase price and
     other material terms of the offer.

          (4)  Dentsu may accept the offer set forth in the BDM Offer Notice by
     delivering written notice of irrevocable acceptance thereof to BDM at any
     time during the 30 days following the receipt of the BDM Offer Notice, in
     which case the parties shall proceed to consummate the transaction promptly
     and in accordance with the terms and conditions of the offer, subject to
     receipt of any required third party approvals or Governmental Approvals,
     compliance with all Laws applicable thereto and the absence of any
     injunction or similar legal order preventing such transaction. If Dentsu
     has not accepted the offer set forth in the BDM Offer Notice within such
     30-day period, Dentsu will have been deemed to have rejected such offer on
     the last day of such 30-day period.

          (5)  If Dentsu does not accept the offer set forth in the BDM Offer
     Notice within 30 days following receipt thereof, or if no BDM Offer Notice
     is given by BDM during the BDM First Offer Period, Dentsu shall have until
     the 180/th/ day following the expiration of the BDM First Offer Period (if
     no BDM Offer Notice has been given) or the date of rejection by Dentsu of
     the offer set forth in the BDM Offer Notice (if such a notice has been
     given), as applicable, to negotiate and consummate a Transfer of Common
     Stock with a Permitted Purchaser in accordance with the provision of
     Section 8.2(c) and at a price and on terms and conditions no less favorable
     to Dentsu than those specified in the BDM Offer Notice, if any. If a
     Transfer of Common Stock is not consummated within such 180-day period,
     Dentsu shall not be permitted to effect a sale of the Offered Shares
     pursuant to Section 8.2(c) without again complying with each requirement in
     this Section 9.2(b).

                                       38
<PAGE>

          9.3.  Information and Inspection. (a) Prior to the IPO and provided
                --------------------------
Dentsu and/or one or more Permitted Dentsu Transferees beneficially own at least
5% of the total number of outstanding shares of BDM Common Stock: (i) within 90
days after the end of each fiscal year, BDM shall provide Dentsu with
consolidated balance sheets of BDM and its consolidated Subsidiaries as at the
end of such year and the related consolidated statements of income, cash flow,
stockholders' equity and changes in financial position of BDM and its
consolidated Subsidiaries for such fiscal year, setting forth in each case in
comparative form the consolidated figures for the previous fiscal year,
accompanied by a report thereon of independent public accountants of recognized
international standing selected by BDM (which report shall state, subject to any
qualifications or limitations specified therein: (A) that such consolidated
financial statements present fairly the financial position of BDM and its
consolidated Subsidiaries as at the dates indicated and the results of their
operations and changes in their financial position for the periods indicated in
conformity with generally accepted accounting principles and (B) that the audit
by such accountants in connection with such consolidated financial statements
has been made in accordance with generally accepted auditing standards); and
(ii) within 45 days after the end of each calendar quarter, BDM shall also
provide Dentsu with unaudited consolidated balance sheets of BDM and its
Subsidiaries as of the end of such quarter and the related consolidated
statements of income, cash flow, stockholders' equity and changes in financial
position of BDM and its Subsidiaries for such quarter and, to the extent
provided by BDM to its stockholders generally or to its lenders, monthly
financial statements and any other financial information regularly provided by
BDM from time to time to its lenders.

          (b)   Dentsu and its representatives (including its accountants and
auditors) shall have the right to conduct an audit of the books and records of
BDM regarding any report specified in Section 9.3(a). Such audit right may be
exercised by Dentsu not more than twice during any 12-month period, and each
audit shall be at the expense of Dentsu and take place at reasonable times,
during normal business hours and after reasonable advance notice to BDM. At the
request of Dentsu, BDM promptly shall make available such information, including
access to such BDM employees, as is reasonably necessary to enable Dentsu and
its representative (including its accountants and auditors) to verify the
accuracy of any report specified in Section 9.3(a).

          9.4.  Filings Regarding Rule 144. At all times after the IPO, BDM will
                --------------------------
file the reports required to be filed by it under the Securities Act and the
rules and regulations adopted by the Commission thereunder and will take such
further action as BDM may reasonably request, all to the extent required from
time to time to enable BDM to sell BDM Common Stock without registration under
the Securities Act within the limitation of the exemptions provided by Rule 144
or any similar rule or regulation hereafter adopted

                                       39
<PAGE>

by the Commission. Upon the request of Dentsu, BDM will deliver to Dentsu a
written statement as to whether it has complied with such requirements.

          9.5.  Tax Cooperation. If BDM deducts or withholds any Taxes with
                ---------------
respect to any payment made by BDM to Dentsu, BDM shall promptly provide to
Dentsu a copy of the official receipt in respect of such Taxes together with
such other documents as Dentsu may reasonably request to enable Dentsu to claim
a credit in respect of such Taxes. BDM shall also provide Dentsu such
information and documents as Dentsu may reasonably request to enable Dentsu to
claim a tax credit with respect to Taxes paid or accrued by any member of the
BDM Group.

                                   ARTICLE X
                                  TERMINATION

          10.1. Termination. This Agreement may be terminated at any time prior
                -----------
to the Closing Date:

          (1) by the written agreement of Dentsu and BDM; or

          (2) by BDM or Dentsu by written notice to the other party at any time
     after 5:00 p.m. New York City time on June 30, 2000 if the Closing shall
     not have been consummated on or before such date and time, unless such date
     is extended by the mutual written consent of BDM and Dentsu.

          10.2. Effect of Termination. In the event of the termination of this
                ---------------------
Agreement, this Agreement shall have no further force or effect, and no party
shall have any liability to the other party (or the other party's Affiliates or
any of their respective officers, directors, shareholders, employees, agents,
advisors or representatives) hereunder except as provided in Section 13.1 and
except for any liability resulting from such party's breach of this Agreement,
provided that the provisions of Section 8.1, Article XII and Article XIII shall
survive any such termination.

                                  ARTICLE XI
                                INDEMNIFICATION

          11.1. Indemnification by BDM. (a) To the extent permitted by
                ----------------------
applicable law, BDM shall indemnify and hold harmless Dentsu, each Dentsu
Affiliate and each officer, director, shareholder, employee, agent, adviser and
representative of Dentsu

                                       40
<PAGE>

and each Dentsu Affiliate from and against any and all Losses and Expenses
incurred by such Persons in connection with or arising from:

          (1)   any material inaccuracy of any representation or warranty of BDM
     contained in this Agreement, in any certificate delivered by or on behalf
     of BDM pursuant to Section 6.2(c) or under any of the Related Documents; or

          (2)   any failure of BDM to perform any covenant or agreement
     hereunder or under any of the Related Documents or fulfill any other
     obligation in respect hereof or thereof.

          (b)   BDM shall also indemnify and hold harmless Dentsu in respect of
Dentsu's pro rata interest in any Losses or Expenses incurred by BDM or any of
its Subsidiaries (calculated in accordance with clause (e) of Section 11.4 and
after taking into account Dentsu's pro rata interest in (i) any insurance
recovery actually claimed and received by BDM in respect thereof; and (ii) the
amount of any net tax benefit actually claimed and received by BDM or any
Subsidiary in respect thereof) resulting from the claims referred to in the
third and fourth paragraphs of Section 2.9 of the Disclosure Schedule (as such
claims may be amended from time to time).

          11.2. Indemnification by Dentsu. To the extent permitted by applicable
                -------------------------
law, Dentsu shall indemnify and hold harmless BDM and each BDM Affiliate, and
each of their respective officers, directors, shareholders, employees, agents,
advisers and representatives from and against any and all Losses and Expenses
incurred by such Persons in connection with or arising from:

          (1)   any material inaccuracy of any representation or warranty of
     Dentsu contained in this Agreement, in any certificate delivered by or on
     behalf of Dentsu pursuant to Section 6.3(c) or under any of the Related
     Documents; or

          (2)   any failure of Dentsu to perform any covenant or agreement
     hereunder or under any of the Related Documents or fulfill any other
     obligation in respect hereof or thereof.

          11.3. Notice of Claims and Cure Period. Any Person seeking
                --------------------------------
indemnification hereunder (the "Indemnified Party") shall give to the party
obligated to provide indemnification to such Indemnified Party (the
"Indemnifying Party") a written notice (a "Claim Notice") describing in
reasonable detail the facts giving rise to any claim for indemnification
hereunder and shall include in such Claim Notice a reference to the provision of
this Agreement or any other Related Document upon which such claim is

                                       41
<PAGE>

based. Furthermore, no Indemnified Party shall be entitled to assert any claim
for indemnification hereunder unless (i) such Indemnified Party shall first have
notified the Indemnifying Party in writing of the inaccuracy, breach or failure
on which such claim is based at least 60 days prior to delivering the related
Claim Notice and (ii) such inaccuracy, breach or failure shall remain uncured as
of the date of such Claim Notice.

          11.4.  Limitations on Claims. (a) The claims for indemnification
                 ---------------------
contemplated under this Article XI are intended to constitute the sole remedies
of the parties to this Agreement for monetary relief based on any breach of any
representation, warranty or covenant or agreement of any Person under this
Agreement or any other Related Document (other than the Registration Rights
Agreement), and no other claim for damages or other form of monetary relief may
be asserted by any party hereto based on any such breach.

          (b)    Except for inaccuracies in the representations and warranties
contained in Section 2.11 and for the indemnification obligation set forth in
Section 11.1(b), no Indemnifying Party shall be required to indemnify any
Indemnified Party with respect to any claim for indemnification pursuant to this
Article XI unless and until such claim has been finally determined pursuant to
the provisions of Section 13.4 and the aggregate amount of all claims against
the Indemnifying Party exceeds $5,000,000 as so determined.

          (c)    Except for inaccuracies in the representations and warranties
contained in Sections 2.2(a), 2.2(b), 2.2(d), and 2.3, and except for the
indemnification obligation set forth in Section 11.1(b) the aggregate liability
of BDM in respect of all claims based upon inaccuracies of the representations
or warranties set forth in Article II shall not exceed $100,000,000.

          (d)    Except for inaccuracies in the representations and warranties
contained in Section 3.2, the aggregate liability of Dentsu in respect of all
claims based upon inaccuracies of its representations or warranties set forth in
Article III shall not exceed $100,000,000.

          (e)    In calculating the amount of any Loss or Expense for which any
Indemnified Party is entitled to indemnification under this Article XI, there
shall be deducted (i) any insurance recovery actually claimed and received by
the Indemnified Party in respect thereof (and no right of subrogation shall
accrue hereunder to any insurer) and (ii) the amount of any net tax benefit
actually claimed and received by the Indemnified Party with respect to such Loss
or Expense (after giving effect to the tax effect of receipt of the
indemnification payments), provided that in no event shall the Indemnified Party
have any obligation to make any claim or take any position or otherwise act in
any manner

                                       42
<PAGE>

with respect to any such possible claim or benefit with respect to any such Loss
or Expense.

          11.5.  Termination of Indemnification. (a) Except as provided in
                 ------------------------------
Subsection (b) or (c) below, the indemnification obligations provided for in
this Article XI shall terminate (x) with respect to any claim based on a failure
to perform any covenant of an Indemnifying Party or the failure of an
Indemnifying Party to perform any obligation, one year after discovery of such
breach or failure by such Indemnified Party (unless a Claim Notice with respect
to such claim shall have been given prior to the expiration of such period) and
(y) with respect to a claim based on any inaccuracy of any representation or
warranty of an Indemnifying Party, eighteen (18) months after the Closing Date
(unless a Claim Notice with respect to such claim shall have been given prior to
the expiration of such period).

          (b)    Notwithstanding Subsection (a) above, (i) the indemnification
obligations of BDM set forth in Section 11.1(b) and with respect to any claim
based on any inaccuracy of any of the representations and warranties set forth
in Subsections 2.1, 2.2, 2.3, 2.4, 2.5, 2.13 and 2.14 shall survive
indefinitely, and (ii) the indemnification obligations of BDM with respect to
any claim based on any inaccuracy of any of the Tax representations and
warranties set forth in Subsection 2.11 shall terminate 60 days after the
expiration of the applicable statute of limitations (unless a Claim Notice with
respect to such claim shall have been given prior to the expiration of such
period).

          (c)    Notwithstanding Subsection (a) above, the indemnification
obligations of Dentsu with respect to any claim based on any inaccuracy of any
of the representations and warranties set forth in Subsections 3.1, 3.2, 3.3,
3.4, 3.5 and 3.6 shall survive indefinitely.

          11.6.  Third Person Claims. (a) Subject to paragraph (b) below, the
                 -------------------
Indemnified Party shall have the right to conduct and control, through counsel
of its choosing, the defense, compromise or settlement of any third Person
claim, action or suit against such Indemnified Party as to which indemnification
will be sought by any Indemnified Party from any Indemnifying Party hereunder,
and in any such case the Indemnifying Party shall cooperate in connection
therewith and shall furnish such records, information and testimony and attend
such conferences, discovery proceedings, hearings, trials and appeals as may be
reasonably requested by the Indemnified Party in connection therewith; provided,
that (i) the Indemnifying Party may participate, through counsel chosen by it
and at its own expense, in the defense of any such claim, action or suit as to
which the Indemnified Party has so elected to conduct and control the defense
thereof; and (ii) the Indemnified Party shall not, without the written consent
of the Indemnifying Party

                                       43
<PAGE>

(which written consent shall not be unreasonably withheld), pay, compromise or
settle any such claim, action or suit, except that no such consent shall be
required if, following a written request from the Indemnified Party, the
Indemnifying Party shall fail, within 14 days after the making of such request,
to acknowledge and agree in writing that, if such claim, action or suit shall be
adversely determined, such Indemnifying Party has an obligation to provide
indemnification hereunder to such Indemnified Party. Notwithstanding the
foregoing, the Indemnified Party shall have the right to pay, settle or
compromise any such claim, action or suit without such consent, provided that in
such event the Indemnified Party shall waive any right to indemnity therefor
hereunder unless such consent is unreasonably withheld.

          (b)   If any third Person claim, action or suit against any
Indemnified Party is solely for money damages, the Indemnifying Party shall have
the right to conduct and control, through counsel of its choosing, the defense,
compromise or settlement of any such third Person claim, action or suit against
such Indemnified Party as to which indemnification will be sought by any
Indemnified Party from any Indemnifying Party hereunder if the Indemnifying
Party has acknowledged and agreed in writing that, if the same is adversely
determined, the Indemnifying Party has an obligation to provide indemnification
to the Indemnified Party in respect thereof, and in any such case the
Indemnified Party shall cooperate in connection therewith and shall furnish such
records, information and testimony and attend such conferences, discovery
proceedings, hearings, trials and appeals as may be reasonably requested by the
Indemnifying Party in connection therewith; provided that the Indemnified Party
may participate, through counsel chosen by it and at its own expense, in the
defense of any such claim, action or suit as to which the Indemnifying Party has
so elected to conduct and control the defense thereof. Notwithstanding the
foregoing, the Indemnified Party shall have the right to pay, settle or
compromise any such claim, action or suit, provided that in such event the
Indemnified Party shall waive any right to indemnity therefor hereunder unless
the Indemnified Party shall have sought the consent of the Indemnifying Party to
such payment, settlement or compromise and such consent was unreasonably
withheld, in which event no claim for indemnity therefor hereunder shall be
waived.

                                  ARTICLE XII
                                CONFIDENTIALITY

          12.1. Confidentiality of Terms of Related Documents. Except as may be
                ---------------------------------------------
required by law, by the rules of any securities exchange on which its securities
are listed, or in accordance with Sections 4.2 and 5.2 hereof, each party shall
keep confidential and not disclose (other than to its counsel, accountants,
underwriters or other advisors or

                                       44
<PAGE>

consultants in connection with (i) the negotiation or performance of this
Agreement and the other Related Documents, (ii) the exercise by such party or
its Affiliates of their rights with respect to this Agreement or any other
Related Document, (iii) any debt or equity offering or other financing
transaction entered into by such party or (iv) any business combination entered
into by such party (subject to compliance with the provisions of Section 9.2, if
applicable), and shall cause its Affiliates and its and their respective
directors, officers, employees, representatives, agents and independent
contractors to keep confidential and not disclose, any of the terms and
conditions of this Agreement or any other Related Document to any third party
without the prior written consent of the other party to this Agreement.
Notwithstanding the foregoing, either party or any applicable Affiliate may
include such information in its financial statements or notes thereto to the
extent required by GAAP or other applicable generally accepted accounting
principles.

          12.2.  Confidentiality of Certain Information.  Each party hereto
                 --------------------------------------
agrees, and each of their respective Affiliates shall be deemed to have agreed:

          (a)  not to disclose or permit any other Person access to any
     confidential information relating to the other party to this Agreement
     which has been disclosed by such other party pursuant to this Agreement or
     any Related Document or during the course of the negotiations leading up to
     the execution of this Agreement ("Confidential Information"), except that
     such disclosure or access shall be permitted to (i) an Affiliate of such
     party or an employee, officer, director, agent, representative, external or
     internal auditor, independent contractor or attorney of such party or any
     Affiliate requiring access to the Confidential Information in the course of
     his or her employment or services, and such Persons shall have an
     obligation hereunder to keep the Confidential Information confidential,
     other than as provided in this Section 12.2 and in Section 12.3 below; (ii)
     regulatory authorities or securities exchanges, or (iii) an arbitrator or
     court to enforce the rights of such party or its Affiliates hereunder,
     provided that the disclosing party shall first notify the other party so
     that the other party may seek a protective order;

          (b)  except with the prior consent of the other party (which shall be
     within the absolute discretion of such party and may be predicated on the
     payment of a separate royalty or other fee), not to use any Confidential
     Information to develop a new service or capability or to enhance an
     existing service or capability; and

          (c)  to ensure that its Affiliates and its and their employees,
     officers, directors, agents, representatives, auditors, independent
     contractors and attorneys are advised of the confidential nature of the
     Confidential Information and are precluded from taking any action
     prohibited under this Section 12.1, provided that

                                      45
<PAGE>

     in any event each party shall be liable for any breach of this Section 12.1
     by its Affiliates or its or their employees, officers, directors, agents,
     representatives, auditors, independent contractors, or attorneys.

          12.3. Exclusions. Nothing in this Article XII shall restrict any
                ----------
Person with respect to Confidential Information which:

          (a) that Person rightfully possessed before it received the
     information from a party, as evidenced by written documentation;

          (b) was at the time of disclosure to such Person in the public domain,
     or subsequently becomes publicly available through no fault of that Person;

          (c) is subsequently furnished rightfully to that Person by a third
     party not affiliated with any party and not known to be under restrictions
     on use or disclosure of such information;

          (d) is independently developed by an employee, agent or contractor of
     such Person; or

          (e) is required to be disclosed by law, regulation or court order,
     provided that the disclosing Person gives the affected party advance notice
     of the proposed disclosure in a timely manner.

                                 ARTICLE XIII
                                 MISCELLANEOUS

          13.1. Expenses. (a) Except as set forth below in this Section 13.1 or
                --------
as otherwise specifically provided for in this Agreement, each of BDM and Dentsu
shall bear their respective expenses, costs and fees (including attorneys',
auditors' and financing commitment fees) in connection with the transactions
contemplated hereby, including the preparation, execution and delivery of this
Agreement and compliance herewith, whether or not the transactions contemplated
hereby shall be consummated.

          (b) If this Agreement is terminated pursuant to paragraph (2) of
Section 10.1 and the failure of the Closing to have been consummated by the date
specified therein is attributable to BDM, including without limitation the
failure of the conditions set forth in Subsections 6.2(a), (b), (c), (d), (e),
(f), and (g) to have been satisfied, then BDM shall promptly reimburse Dentsu
for its expenses, costs and fees (including reasonable

                                      46

<PAGE>

attorneys', auditors' and financing commitment fees) incurred in connection with
the transactions contemplated hereby and any previous transactions negotiated
between TLG and Dentsu since November 1998.

          (c) If this Agreement is terminated pursuant to paragraph (2) of
Section 10.1 and the failure of the Closing to have been consummated by the date
specified therein is attributable to Dentsu, including without limitation the
failure of the conditions set forth in Subsections 6.3(a), (b), (c) and (e) to
have been satisfied, then Dentsu shall promptly reimburse BDM and TLG for their
respective expenses, costs and fees (including reasonable attorneys', auditors'
and financing commitment fees) incurred in connection with the transactions
contemplated hereby and any previous transactions negotiated between TLG and
Dentsu since November 1998.

          13.2. Notices. (a) All notices, requests, demands and other
                -------
communications under this Agreement shall be in writing and shall be either (i)
personally delivered, (ii) sent by Federal Express or other reputable overnight
carrier or (iii) sent by telecopier (with a copy also sent by reputable
overnight carrier; postage prepaid) to the party for which it is intended at the
following address:

          (1)   if to Dentsu, to:

                Dentsu Inc.
                1-11, Tsukiji, Chuo-ku
                Tokyo 104-8426, Japan
                Attention: Mr. Fumio Oshima, Managing Director
                Telecopier No. (813) 5551-2009

                with a copy to:

                Debevoise & Plimpton
                875 Third Avenue
                New York, NY 10022
                Attention: Louis Begley
                Telecopier No. 212-909-6836

     or to such other address as Dentsu may have designated by notice
     hereunder; and

                                      47
<PAGE>

          (2)  if to BDM, to:

               BDM, Inc.
               35 West Wacker Drive
               Chicago, IL 60601
               Attention: Mr. Christian E. Kimball, Chief Administrative Officer
               Telecopier No. (312) 220-4029

               with a copy to:

               Sidley & Austin
               875 Third Avenue
               New York, NY 10022
               Attention: Michael H. Yanowitch
               Telecopier No. (212) 906-2021

     or to such other address as BDM may have designated by notice hereunder.

          (b)  Every notice, demand, request or other communication hereunder
shall be deemed to have been duly given or served: (i) on the date on which
personally delivered, with receipt acknowledged, (ii) two Business Days after
timely delivery to Federal Express or another overnight courier service, if sent
by courier or (iii) upon transmission thereof by the sender and issuance by the
transmitting machine of a confirmation slip confirming that the number of pages
constituting the communication have been transmitted without error, if
telecopied (subject to a copy of such communication also being sent by
reputable overnight courier).

          13.3. GOVERNING LAW, ETC. THIS AGREEMENT SHALL BE GOVERNED IN ALL
                -------------------
RESPECTS, INCLUDING AS TO VALIDITY, INTERPRETATION AND EFFECT, BY THE INTERNAL
LAWS OF THE STATE OF NEW YORK, WITHOUT GIVING EFFECT TO PRINCIPLES OR RULES OF
CONFLICT OF LAWS TO THE EXTENT SUCH PRINCIPLES OR RULES WOULD REQUIRE OR PERMIT
THE APPLICATION OF LAWS OF A JURISDICTION OTHER THAN THE STATE OF NEW YORK.

          13.4. Arbitration. (a) Any dispute, controversy or claim arising out
                ------------
of, relating to, or in connection with, this Agreement, or the breach,
termination or validity thereof, will be submitted to the Chief Executive
Officer of BDM and the President of Dentsu as soon as reasonably practicable
for resolution.

                                      48

<PAGE>

          (b)  If the Chief Executive Officer of BDM and the President of Dentsu
are unable to resolve any such dispute, controversy or claim within 15 days
after same is submitted to them, either party may at any time thereafter require
that such dispute, controversy or claim be finally settled by binding
arbitration.  The arbitration shall be conducted in accordance with the CPR
Institute for Dispute Resolution Rules for Non-Administered Arbitration of
International Disputes in effect at the time of the arbitration, except as they
may be modified herein or by mutual agreement of the parties.  The seat of the
arbitration shall be New York City, United States, and it shall be conducted in
the English language provided that either party may submit testimony or
documentary evidence in any language if it furnishes, upon the request of the
other party, a translation into English of any such testimony or documentary
evidence.  The neutral organization designated to perform the functions
specified in Rule 6 and Rules 7.7(b), 7.8 and 7.9 shall be the CPR Institute for
Dispute Resolution. Notwithstanding Section 13.3 of this Agreement the
arbitration and this clause shall be governed by Title 9 (Arbitration) of the
United States Code.

          (c)  The arbitration shall be conducted by three arbitrators.  The
arbitrators shall be selected as provided in the rules specified above.

          (d)  In order to facilitate the comprehensive resolution of related
disputes, and upon request of any party to the arbitration proceeding, the
arbitration tribunal may, within 90 days of its appointment, consolidate the
arbitration proceeding with any other arbitration proceeding involving any of
the parties hereto relating to this Agreement or any other Related Documents.
The arbitration tribunal shall not consolidate such arbitrations unless it
determines that (i) there are issues of fact or law common to the two
proceedings so that a consolidated proceeding would be more efficient than
separate proceedings, and (ii) no party hereto would be prejudiced as a result
of such consolidation through undue delay or otherwise. In the event of
different rulings on this question by the arbitration tribunal constituted
hereunder and the tribunal constituted under any Related Document, the ruling of
the panel constituted hereunder shall control.  In the case of a consolidated
proceeding, the arbitrators in that proceeding shall be named in accordance
with the provisions hereof.

          (e)  The arbitral award shall be in writing, state the reasons for the
award and be final and binding on the parties. The award may include an award of
costs, including reasonable attorneys' fees and disbursements. The arbitral
award may not provide for punitive damages or any other relief not contemplated
by this Agreement or the other relevant Related Documents.

                                      49
<PAGE>

          (f) All proceedings in connection with any arbitration, including its
existence, the content of the proceedings and any decision, shall be kept
confidential to the maximum extent possible consistent with the law.

          (g) Judgment upon the decision may be entered by any court having
jurisdiction thereof or having jurisdiction over the relevant party or its
assets.

          (h) Each party will bear a fifty percent (50%) share of all fees,
costs and expenses of the arbitrators, and notwithstanding any law to the
contrary, each party will bear all the fees, costs and expenses of its own
attorneys, experts and witnesses; provided, however, that in connection with any
judicial proceeding to compel arbitration pursuant to this Agreement or to
confirm, vacate or enforce any award rendered by the arbitration tribunal, the
prevailing party in such a proceeding will be entitled to recover reasonable
attorneys' fees and expenses incurred in connection with such proceeding, in
addition to any other relief to which it may be entitled.

          13.5. Judicial Procedure. Nothing in Section 13.4 shall be construed
                -------------------
to prevent any party from seeking from a court a temporary restraining order or
other temporary or preliminary relief to preserve the status quo pending final
resolution of a dispute, controversy or claim pursuant to Section 13.4, or if
such party makes a good faith determination that a breach of the terms of this
Agreement or any other Related Document by another party is such that a
temporary restraining order or other temporary or preliminary relief is the only
appropriate and adequate remedy at such time.

          13.6. Binding Effect. This Agreement will be binding upon any inure to
                ---------------
the benefit of the parties hereto and their respective heirs, successors and
permitted assigns.

          13.7. Assignment. This Agreement will not be assignable or otherwise
                -----------
transferable by any party hereto without the prior written consent of the other
parties hereto.

          13.8. No Third-Party Beneficiaries. Except as provided in Article XI
                -----------------------------
with respect to indemnification of Indemnified Parties hereunder, nothing in
this Agreement shall confer any rights upon any person or entity other than the
party hereto and their respective heirs, successors and permitted assigns.

          13.9. Amendment; Waivers, etc. No amendment, modification or discharge
                ------------------------
of this Agreement, and no waiver hereunder, will be valid or binding unless set
forth in writing and duly executed by the party against whom enforcement of the

                                      50

<PAGE>

amendment, modification, discharge or waiver is sought. Any such waiver will
constitute a waiver only with respect to the specific matter described in such
writing and will in no way impair the rights of the party granting such waiver
in any other respect or at any other time. Neither the waiver by any of the
parties hereto of a breach of or a default under any of the provisions of this
Agreement, nor the failure by any of the parties, on one or more occasions, to
enforce any of the provisions of this Agreement or to exercise any right or
privilege hereunder, will be construed as a waiver of any other breach or
default of a similar nature, or as a waiver of any of such provisions, rights or
privileges hereunder. The rights and remedies herein provided are cumulative and
none is exclusive of any other, or of any rights or remedies that any party may
otherwise have at law or in equity. The rights and remedies of any party based
upon, arising out of or otherwise in respect of any inaccuracy or breach of any
representation, warranty, covenant or agreement or failure to fulfill any
condition will in no way be limited by the fact that the act, omission,
occurrence or other state of facts upon which any claim of any such inaccuracy
or breach is based may also be the subject matter of any other representation,
warrranty, covenant or agreement as to which there is no inaccuracy or breach.

          13.10.    Severability.  If any provision, including any phrase,
                    ------------
sentence, clause, section or subsection, of this Agreement is invalid,
inoperative or unenforceable for any reason, such circumstances will not have
the effect of rendering such provision in question invalid, inoperative or
unenforceable in any other case or circumstance, or of rendering any other
provision herein contained invalid, inoperative, or unenforceable to any extent
whatsoever.

          13.11.    Headings.  The headings contained in this Agreement are for
                    --------
purposes of convenience only and will not affect the meaning or interpretation
of this Agreement.

          13.12.    Counterparts.  This Agreement may be executed in several
                    ------------
counterparts, each of which will be deemed an original and all of which will
together constitute one and the same instrument.

          13.13.    Interpretation.  Except as otherwise stated, reference to
                    --------------
Articles, Sections, Exhibits and Schedules means the Articles, Sections,
Exhibits and Schedules of this Agreement.  The words "including" or "includes"
or similar terms used herein will be deemed to be followed by the words "without
limitation," whether or not such additional words are actually set forth herein.

          13.14.    No Other Representations or Warranties; Adequacy of
                    ---------------------------------------------------
Investigation.  Each party hereby acknowledges that no such party or any
-------------
Affiliate thereof is

                                      51
<PAGE>

making any representation or warranty in connection with the transactions and
other matters contemplated by this Agreement and the other Related Document
other than those expressly set forth in this Agreement and the other Related
Documents, and that no officer, employee or other agent or representative of any
such party or any such Affiliate has the authority to make any additional
representations and warranties on behalf of such party or any such Affiliate.
Furthermore, Dentsu hereby acknowledges that it has been afforded an opportunity
to undertake due diligence investigations of BDM and its Affiliates and has not
uncovered as a result of any such investigation any facts indicating that any
representation or warranty of BDM is not true and correct as of the date of this
Agreement.

          13.15. Entire Agreement. This Agreement and the other Related
                 -----------------
Documents (when executed and delivered) constitute the entire agreement and
supersede all prior agreements and understandings, both written and oral,
between the parties with respect to the subject matter hereof and thereof.

                           [SIGNATURE PAGES FOLLOW]

                                      52
<PAGE>

          IN WITNESS WHEREOF, the parties have duly executed this Agreement as
of the date first above written.

                                   BDM, INC.

                                   By /s/ Roger A. Haupt
                                      --------------------
                                      Name: Roger A. Haupt
                                      Title: Chief Executive Officer

                                   DENTSU INC.

                                   By /s/ Yutaka Narita
                                      -------------------
                                      Name: Yutaka Narita
                                      Title: President

<PAGE>

                                                                     SCHEDULE A

                                  DEFINITIONS

          In this Schedule, in this Agreement and in any other document that
refers to terms as defined herein, the following terms shall have the respective
meanings assigned below (each such definition to be equally applicable to the
plural and singular forms of the respective terms so defined):

          "Additional Shares" has the meaning specified in Section 7.1.

          "Advertising Services" means any type of advertising, business to
      business communications, marketing, market research, promotional or media
      buying services.

          "Affiliate" of any Person means a Person which directly or
      indirectly through one or more intermediaries controls, or is controlled
      by, or is under common control with such Person. The term "control" as
      used with respect to any Person means the possession, directly or
      indirectly, of the power to direct or cause the direction of the
      management and policies of such Person, whether through the ownership of
      voting securities, by contract or otherwise.

          "Aggregate Closing BDM Share Number" has the meaning set forth in
      Section 4.3(b)

          "Aggregate Purchase Price" has the meaning set forth in Section 1.1.

          "Agreement" means this Investment Agreement, including the Exhibits
      and Schedules hereto, as the same may be amended or modified from time to
      time in accordance with its terms.

          "Alliance Agreement" has the meaning set forth in Section 6.2.

          "Base IPO Share Number" has the meaning set forth in Section 7.2.

          "BBH" has the meaning set forth in Section 2.4.

                                      A-1
<PAGE>
      "BDM" has the meaning set forth in the Heading.

      "BDM Change of Control" means any decision by the Board of Directors to
approve or permit any transaction, including without limitation any third party
tender offer for voting capital stock of BDM and any merger, consolidation or
similar business combination of BDM with or into any other Person, as a result
of which the stockholders of BDM immediately prior to the consummation of such
transaction would no longer control BDM (or if BDM is not the surviving entity,
the Successor Entity) immediately thereafter. The term "control" means (i) the
beneficial ownership by an Person or group of Persons of outstanding shares of
voting capital stock of BDM (or any Successor Entity) entitled to exercise 50%
or more of the total votes entitled to be cast at a regular or special meeting,
or by action by written consent, of the stockholders of BDM (or any Successor
Entity) in the election of directors, of (ii) the possession by any Person or
group of Persons of the power, directly or indirectly, (A) to elect a majority
of the board of directors of BDM (or any Successor Entity), or (B) to direct or
cause the direction of the management and policies of or with respect to BDM (or
any Successor Entity), whether through ownership of securities, by contract or
otherwise.

      "BDM COC Transaction" has the meaning set forth in Section 9.2(a).

      "BDM Common Stock" means the common stock of BDM, including the Class A
Stock and the Class B Stock.

      "BDM Convertible Securities" has the meaning set forth in Section 7.1.

      "BDM First Offer Period" has the meaning set forth in Section 9.2(b).

      "BDM Group" means, collectively, BDM and its Subsidiaries.

      "BDM Material Adverse Effect" means any event, occurrence, fact,
condition, change, development or effect that is materially adverse to the
business, operations, results of operations, condition (financial or otherwise),
properties (including intangible properties), assets (including intangible
assets) or liabilities of the BDM Group taken as a whole.

      "BDM Offer Notice" has the meaning set forth in Section 9.2(b).

      "BDM Stock Purchase Agreement" has the meaning set forth in Section
2.2(d).

                                      A-2

<PAGE>

         "BDM Voting Trust Agreement" has the meaning set forth in Section
2.2(d).

         "Board of Directors" means the board of directors of BDM.

         "Burnett Merger" means the merger of the TAC with and into TLG in
accordance with the Merger Agreement.

         "Business" means the business and operations of the BDM Group, taken as
a whole, as previously or currently conducted or contemplated to be conducted
(including the TLG Business and the TMG Business).

         "Business Day" means any day other than (i) a Saturday, Sunday or other
day on which commercial banks in Chicago, Illinois , London, England or Tokyo,
Japan are authorized or obligated by law or executive order to close, (ii)
December 29 and December 30 and (iii) the first Friday of December of each year
(or such other day as BDM from time to time designates as its "Breakfast Day")

         "Claim Notice" has the meaning set forth in Section 11.3.

         "Class A Stock" means the Class A Common Stock, par value $0.01 per
share, of BDM.

         "Class B Directors" means the director(s) of BDM elected by Dentsu
and/or one or more Permitted Dentsu Transferees as holders of the Class B Stock
pursuant to Article IV of the Restated Charter.

         "Class B Stock" means the Class B Common Stock, par value $0.01 per
share, of BDM.

         "Client" means a purchaser of Advertising Services.

         "Closing" has the meaning set forth in Section 1.2.

         "Closing Date" has the meaning set forth in Section 1.2.

         "COC Notice" has the meaning set forth in Section 9.2.(a)

         "Code" means the Internal Revenue Code of 1986, as amended.

                                      A-3
<PAGE>

          "Commission" means the United States Securities and Exchange
     Commission or any successor agency.

          "Confidential Information" has the meaning set forth in Section
     12.2(a).

          "Consent" means any consent, approval, authorization, waiver, permit,
     grant, franchise, concession, agreement, license, certificate, exemption,
     order, registration, declaration, filing, report or notice of, with or to
     any Person.

          "Contractual Obligation" shall mean, with respect to any Person, any
     provision of any mortgage or security issued by such Person or any of its
     Subsidiaries or of any lease, franchise, agreement, guaranty, instrument or
     undertaking to which such Person or any such Subsidiary is a party or by
     which it or any of its properties or assets is bound.

          "Convertible Securities" means, with respect to any Person,
     evidences of indebtedness, shares of stock or other securities that are
     convertible into or exchangeable for, with or without payment of additional
     consideration in cash or property, shares of capital stock of such Person
     or any Successor Entity, either immediately or upon the occurrence of a
     specified date or a specified date or a specified event.

          "Dentsu" has the meaning set forth in the Heading.

          "Dentsu Base IPO Shares" has the meaning set forth in Section 7.2.

          "Dentsu First Offer Period" has the meaning set forth in Section
     9.2(a).

          "Dentsu Group" means, collectively, Dentsu and its Subsidiaries.

          "Dentsu IPO Shares" has the meaning set forth in Section 7.2(b).

          "Dentsu Material Adverse Effect" means any event, occurrence, fact,
     condition, change, development or effect that is materially adverse to
     the business, operations, prospects, results of operations, condition
     (financial or otherwise), properties (including intangible properties),
     assets (including intangible assets) or liabilities of the Dentsu Group
     taken as a whole.

          "Dentsu Offer Notice" has the meaning set forth in Section 9.2(a).

          "Dentsu Over-Allotment Shares" has the meaning set forth in Section
     7.2.

                                      A-4
<PAGE>
     "Dentsu's Prior Approval", in respect of an action or event, means: (i)
prior written approval of such action or event by (x) any Director appointed by
Dentsu, (y) any representative director of Dentsu, or (z) all 4 members of the
Alliance Committee (as such term is defined in the Alliance Agreement) appointed
by Dentsu, or (ii) the affirmative vote in favor of approving such action or
event by all of the Class B Directors voting thereon at any meeting of the Board
of Directors or any committee thereof (as reflected in the minutes of such
meeting) or in any written consent in lieu of a meeting.

     "Director" means a member of the Board of Directors.

     "Disclosure Schedule" has the meaning set forth in Section 2.2.

     "Employee Holder(s)" means any Employee, group of Employees, entity
controlled by a group of Employees, or a trust for the benefit of a group of
Employees that hold shares of BDM Common Stock.

     "Employee Shares" means a pool of shares of BDM Common Stock available for
issuance to Employees. As of the Closing Date, the number of authorized Employee
Shares shall be 1,583,055, representing 8% of the number of shares of BDM Common
Stock that will be outstanding as of the Closing Date (taking into account the
Share Replacement Options and the shares of Class B Stock to be issued to Dentsu
pursuant to this Agreement). Following the Closing, the number of authorized
Employee Shares shall be: (i) adjusted proportionately from time to time in the
event of any stock dividend, stock split or other subdivision or combination of
the outstanding BDM Common Stock, (ii) decreased by the number of shares subject
to options or other incentive awards granted to Employees from time to time,
(iii) increased by the number of shares subject to any such stock options or
other incentive awards that are forfeited, canceled or expire unexercised, and
(iv) increased by the number of shares of BDM Common Stock purchased from time
to time from any Employee pursuant to the applicable BDM Stock Purchase
Agreement and the number of shares of BDM Common Stock, if any, purchased (or
not issued) as a result of the claim referred to in the fourth paragraph of
Section 2.9 of the Disclosure Schedule (as such claim may be amended from time
to time). The number of authorized Employee Shares shall not be reduced by any
grant of Share Replacement Options.

     "Employees" means any employees, officers or directors of, or individual
consultants to, any member of the BDM Group and any affiliated entity (even if
not controlled by BDM).

                                      A-5
<PAGE>

       "Employment Related Transaction or Arrangement" means any transaction or
arrangement between BDM or any BDM Subsidiary, on the one hand (the "employer"),
and any shareholder thereof who is an officer, director or employee of or
consultant to BDM or any BDM Subsidiary, on the other hand (the "employee"),
that is entered into in the ordinary course of the business of such employer in
respect of such employment or other relationship, including, without limitation,
the payment of compensation and the provision of other employment-related
perquisites, participation by the employee in employee benefit or welfare plans,
the purchase by the employee of stock in BDM or any BDM Subsidiary and the
participation of the employee in any stock-based incentive plans (and any
related repurchases of such stock or stock-based awards).

       "Equity Securities" means (i) shares of capital stock, (ii) Convertible
Securities, and (iii) Stock Purchase Rights.

       "Estimated Price Range" has the meaning set forth in Section 7.2.

       "Exchange Act" means the Securities Exchange Act of 1934, or any
successor statute, and the rules and regulations of the Commission thereunder,
all as the same shall be in effect from time to time. Reference to a particular
section of the Securities Exchange Act of 1934 shall include a reference to the
comparable section, if any, of any such successor statute.

       "Exercise Amount" has the meaning set forth in Section 7.1.

       "Exercise Notice" has the meaning set forth in Section 7.1.

       "Expenses" means any and all expenses incurred in connection with
investigating, defending or asserting any claim, action, suit or proceeding
incident to any matter indemnified against hereunder (including court filing
fees, court costs, arbitration fees or costs, witness fees, and reasonable fees
and disbursements of legal counsel, investigators, expert witnesses,
consultants, accountants and other professionals).

       "Financial Statements" has the meaning set forth in Section 2.7.

       "GAAP" means generally accepted accounting principles in effect from time
to time in the United States of America.

                                      A-6

<PAGE>

                    "Governmental Approval" means any Consent of, with or to any
               Governmental Authority.

                    "Governmental Authority" means any nation or government, any
               state or other political subdivision thereof, and any entity,
               authority or body exercising executive, legislative, judicial,
               regulatory or administrative functions of or pertaining to
               government.

                    "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements
               Act of 1976, as amended, and the rules and regulations
               thereunder.

                    "Indebtedness" (a) in respect of any member of the TLG
               Group, has the meaning set forth in the Credit Agreement dated
               January 28, 2000 among TLG, Bank of America, N.A., Citibank, N.A,
               Bank One, NA and the other financial institutions party thereto,
               (b) in respect of any member of the TMG Group, has the meaning
               set forth in the Amended and Restated Credit Agreement dated as
               of January 28, 2000 among TMG, DMB&B U.S.A., Inc., Bank of
               America, N.A., Citibank, N.A., Bank One, NA and the other
               financial institutions party thereto and (c) in respect of BDM,
               means any of the following, without duplication: (i) all
               indebtedness for borrowed money; (ii) all non-contingent
               reimbursement or payment obligations with respect to letters of
               credit, banker's acceptances, bank guarantees, surety bonds and
               similar instruments, other than any of same constituting
               Indebtedness of any member of the TLG Group or TMG Group; (iii)
               all obligations evidenced by notes, bonds, debentures or similar
               instruments, including obligations so evidenced incurred in
               connection with the acquisition of property, assets or
               businesses; (iv) all obligations with respect to capital leases
               (but not operating leases); (v) all indebtedness referred to in
               clauses (i) through (iv) above which are secured by (or for which
               the holder of such Indebtedness has an existing right, contingent
               or otherwise, to be secured by) any lien or security interest
               upon or in property (including accounts and contracts rights)
               owned by BDM, even though BDM has not assumed or become liable
               for the payment of such Indebtedness; and (vi) all guaranties in
               respect of indebtedness or obligations of Persons other than
               members of the TLG Group or the TMG Group of the types referred
               to in clauses (i) through (iv).

                    "Indemnified Party" has the meaning set forth in Section
               11.3.

                    "Indemnifying Party" has the meaning set forth in Section
               11.3.

                    "Initial Filing Date" has the meaning set forth in Section
               7.2.

                                      A-7
<PAGE>

                    "IPO" has the meaning set forth in the Recitals.

                    "IPO Exercise Notice" has the meaning set forth in Section
               7.2.

                    "IPO Issuance Notice" has the meaning set forth in Section
               7.2.

                    "IPO Registration Statement" has the meaning set forth in
               Section 7.2.

                    "Issuance Date" has the meaning set forth in Section 7.1.

                    "Issuance Notice Percentage" has the meaning set forth in
               Section 7.2.

                    "Issuance Price" has the meaning set forth in Section 7.1.

                    "Issue Size Change Notice" has the meaning set forth in
               Section 7.2.

                    "Knowledge of BDM" means the actual knowledge of any of the
               following officers of BDM: (i) the Chief Executive Officer, (ii)
               the Chairman, (iii) the Vice Chairman, (iv) the President, (v)
               each member of the Executive Committee (other than any member to
               be designated by Dentsu), (vi) the Chief Operating Officer, (vii)
               the Chief Administrative Officer, and (viii) the General
               Counsel.

                    "Law" means all applicable provisions of all (i)
               constitutions, treaties, statutes, and other requirements of law
               (including the common law), codes, rules, regulations, ordinances
               or orders of any Governmental Authority, (ii) Governmental
               Approvals and (iii) orders, decisions, injunctions, judgments,
               awards and decrees of or agreements with any Governmental
               Authority.

                    "Lien" means any mortgage or deed of trust, pledge,
               hypothecation, assignment, deposit arrangement, lien, charge,
               claim, security interest, easement or encumbrance, or preference,
               priority or other security agreement or preferential arrangement
               of any kind or nature whatsoever (including, without limitation,
               any lease or title retention agreement, any financing lease
               having substantially the same economic effect as any of the
               foregoing, and the filing of, or agreement to give, any financing
               statement perfecting a security interest under the Uniform
               Commercial Code or comparable law of any jurisdiction).

                    "Losses" means any and all losses, costs, obligations,
               liabilities, settlement payments, awards, judgments, fines,
               penalties, damages, expenses, deficiencies or

                                      A-8
<PAGE>

               other charges (whether absolute, accrued, conditional or
               otherwise and whether or not resulting from third party claims).

                    "MAC" means the TMG Acquisition Corp., the Delaware
               Corporation in existence immediately prior to the MacManus
               Merger.

                    "MacManus Merger" means the merger of MAC with and into TMG
               in accordance with the Merger Agreement.

                    "Material BDM Subsidiary" means any Subsidiary of BDM that
               would be a "significant subsidiary" (as that term is defined in
               the Commission's Regulation S-X) if BDM were a "registrant" for
               purposes of such definition, including without limitation the
               Subsidiaries of BDM listed in Section 2.2(c)(i) of the Disclosure
               Schedule.

                    "Material TLG Subsidiary" means any Subsidiary of TLG that
               would be a "significant subsidiary" (as that term is defined in
               the Commission's Regulation S-X) if TMG were a "registrant" for
               purposes of such definition.

                    "Material TMG Subsidiary" means any Subsidiary of TMG that
               would be a "significant subsidiary" (as that term is defined in
               the Commission's Regulation S-X) if TMG were a "registrant" for
               purposes of such definition.

                    "Merger Agreement" means that certain Agreement and Plan of
               Merger, dated as of December 30, 1999, by and among BDM, TLG,
               TMG, TAC and MAC.

                    "Merger Documents" has the meaning set forth in Section
               2.15.

                    "Merger" means, collectively, the MacManus Merger and the
               Burnett Merger.

                    "NASDAQ" means the Nasdaq Stock Market.

                    "New Convertible Securities" has the meaning set forth in
               Section 7.1(d).

                    "New Derivative Securities" has the meaning set forth in
               Section 7.1(e).

                    "New Equity Securities" has the meaning set forth in Section
               7.1(a).

                    "Offered Shares" has the meaning set forth in Section
               9.2(b).

                                      A-9
<PAGE>

                    "Offering Memorandum" means the Joint Proxy
               Statement/Private Placement Memorandum, dated December 30, 1999,
               that was delivered by BDM to the stockholders of TLG and TMG in
               connection with the Mergers.

                    "Organizational Documents" means, as to any Person, the
               articles of incorporation and by-laws, any partnership or limited
               liability company agreement, and deed of trust or any other
               documents serving similar purposes in the jurisdiction in which
               such Person is organized.

                    "Over-Allotment Option" means an option granted by BDM to
               the underwriters in connection with the IPO to cover over-
               allotments pursuant to the applicable underwriting agreement.

                    "Over-Allotment Share Number" has the meaning set forth in
               Section 7.2.

                    "Permitted Dentsu Transferee" has the meaning set forth in
               Section 8.2.

                    "Permitted Intercompany Transfer" has the meaning set forth
               in Section 8.2.

                    "Permitted Issuance" means the issuance of shares of BDM
               Common Stock as consideration in connection with any acquisition
               by BDM or any Affiliate (whether by purchase, merger or
               otherwise) of a business or businesses that the BDM Board of
               Directors has determined to be in the best interest of BDM and
               its stockholders.

                    "Permitted Joint Venture" means any alliance, joint venture
               or similar cooperative arrangement (A) to which BDM, Dentsu or
               any Affiliate thereof is a party as of the date of this
               Agreement, (B) to which BDM, Dentsu or any Affiliate thereof
               intends to hereafter become a party (and has disclosed such
               intention in writing to the other party prior to the date of this
               Agreement), (C) that is unrelated to Advertising Services, (D)
               that is related to Advertising Services but limited to speciality
               services not involving the offering of Advertising Services under
               the trade names of BDM, Dentsu, TLG or TMG (e.g., an arrangement
               relating to media buying, a production studio, etc.), or (E) that
               involves a joint or cooperative offering of Advertising Services
               but only in a single advertising market or region not including
               any of the "top twenty" advertising markets in the world (as
               measured by the country-by-country rankings for annual media
               expenditures published by Zenithmedia for the calendar year
               immediately preceding the date of entry into such alliance, joint
               venture or similar cooperative arrangement, or as

                                     A-10
<PAGE>

               measured by such other country-by-country ranking as may be
               agreed in writing by the parties from time to time).

                    "Permitted Liens" means (i) Liens reflected in the
               Disclosure Schedule, (ii) Liens for Taxes and other governmental
               charges and assessments with are not yet due and payable or which
               are being contested in good faith by appropriate proceedings,
               (iii) easements, rights of way, title imperfections and
               restrictions, zoning ordinances and other similar encumbrances
               affecting real property, (iv) statutory Liens in favor of lessors
               arising in connection with any property leased to any member of
               the TLG Group or the BDM Group, as applicable, (v) Liens
               reflected in the Financial Statements and (vi) any other Liens
               which do not materially interfere with the current use of
               properties affected thereby.

                    "Permitted Purchaser", with respect to shares of BDM Common
               Stock means a Person who would be permitted under Rule
               13d-1(b)(1) under the Securities Exchange Act to report the
               acquisition of beneficial ownership of such shares on Schedule
               13G under the Securities Exchange Act (assuming for such purposes
               that the BDM Common Stock were then registered under Section 12
               of the Securities Exchange Act) and any analogous foreign Person,
               in each case that is generally in the business of investing in
               securities or holding securities for investment purposes,
               provided that such Person (i) is not a "Major Competitor" of BDM
               (as such term is defined in the Alliance Agreement) or an
               Affiliate thereof, (ii) does not hold any equity interest (other
               than a "Permitted Portfolio Investment" (as such term is defined
               in the Alliance Agreement)) in any such Major Competitor and
               (iii) no representative of such Person serves as an officer or
               director of any such Major Competitor.

                    "Permitted Purchaser Agreement" has the meaning set forth in
               Section 8.2(c).

                    "Permitted Third Party Sale" has the meaning set forth in
               Section 8.2(c).

                    "Person" mean any natural person, firm, partnership,
               association, corporation, company, limited liability company,
               trust, business trust, Governmental Authority or other entity.

                    "Pricing Change Notice" has the meaning set forth in Section
               7.2.

                    "Prior Notice" has the meaning set forth in Section 7.1.

                                     A-11
<PAGE>

     "Prior Notice Percentage" has the meaning set forth in Section 7.2.

     "PTP Shares" has the meaning set forth in Section 8.2(c).

     "Registration Rights Agreement" has the meaning set forth in Section 6.2.

     "Related Documents means (i) this Agreement, (ii) the Alliance Agreement,
(iii) the Amended and Restated Certificate of Incorporation for BDM,
substantially in the form of Exhibit A hereto, and (iv) the Registration Rights
Agreement, of even date herewith, between BDM and Dentsu, as each such document
may be amended or modified from time to time in accordance with its respective
terms.

     "Restated By-Laws" has the meaning set forth in Section 6.2.

     "Restated Charter" has the meaning set forth in Section 6.2.

     "Securities Act" means the Securities Act of 1933, or any successor
statute, and the rules and regulations promulgated thereunder, all as the same
shall be in effect from time to time. Reference to a particular section of the
Securities Act of 1933 shall include a reference to the comparable section, if
any, of any such successor statute.

     "Securities Exchange Act" means the Securities Exchange Act of 1934, or any
successor statute, and the rules and regulations promulgated thereunder, all as
the same shall be in effect from time to time. Reference to a particular section
of the Securities Exchange Act of 1934 shall include a reference to the
comparable section, if any, of any such successor statute.

     "Share Reduction Notice" has the meaning set forth in Section 7.2.

     "Share Replacement Options" means any stock options granted by BDM to
Employees to purchase shares of BDM Common Stock with an exercise price equal to
the book value per share of BDM Common Stock, but only to the extent that such
options are coupled with a prior or concurrent repurchase by BDM (or TLG or TMG)
from such Employee of an equal number of shares of BDM Common Stock (or stock of
TLG or TMG) at book value.

     "Shares" has the meaning set forth in Section 1.1.

                                   A-12

<PAGE>

     "Stock Purchase Rights" means, in respect of any Person, any options,
warrants or other securities or rights (preemptive or otherwise) to subscribe to
or exercisable for the purchase of shares of capital stock or any Convertible
Securities of such Person or any Successor Entity, whether or not immediately
exercisable.

     "Subsidiary" of a Person means: (a) any corporation, association or other
business entity (i) of which more than 50% of the voting power of the
outstanding voting stock is beneficially owned, directly or indirectly, by such
Person or (ii) the accounts of which would be consolidated with those of such
Person in its consolidated financial statements in accordance with GAAP, (b) any
corporation, association or other business entity whose voting stock is publicly
traded if such Person beneficially owns, directly or indirectly, shares of
voting stock representing more than 30% of the voting power of all outstanding
voting stock unless some other Person beneficially owns, directly or indirectly,
shares of voting stock representing more than 30% of such voting power, (c) any
partnership in which such Person or one or more Subsidiaries thereof is a
general partner and either (i) such Person and its Subsidiaries together own a
majority of the partnership interests thereof or (ii) such Person otherwise
directly or indirectly controls such partnership in such a manner as to permit
the accounts of such partnership to be consolidated with those of such Person in
its consolidated financial statements in accordance with GAAP or, (d) any
limited liability company in respect of which such Person is a manager or
managing member and either (i) such Person and its Subsidiaries together own a
majority of the membership interests thereof or (ii) such Person otherwise
directly or indirectly controls such limited liability company in such a manner
as to permit the accounts of such limited liability company to be consolidated
with those of such Person in its consolidated financial statements in accordance
with GAAP.

     "Successor Entity" means, in respect of any Person participating in a
merger, consolidation or other business combination in which such Person is not
the surviving entity, the surviving entity in such transaction.

     "TAC" means the TLG Acquisition Corp., the Delaware Corporation in
existence immediately prior to the Burnett Merger.

     "Tax" (and with correlative meaning, "Taxes" and "Taxable") means any
federal, state, local or foreign net income, gross income, gross receipts,
windfall profit, severance, property, production, sales, use, license, excise,
franchise, employment, payroll, withholding, alternative or add-on minimum, ad
valorem, transfer, stamp, or environmental tax, or any other tax, custom, duty,

                                     A-13
<PAGE>

governmental fee or other like assessment or charge of any kind whatsoever,
together with any interest or penalty, addition to tax or additional amount
imposed by any Governmental Authority.

     "Tax Return" means any return, report or similar statement required to be
filed with respect to any Tax (including any attached schedules), including any
information return, claim for refund, amended return or declaration of estimated
Tax.

     "Threshold Position" has the meaning set forth in Section 8.1.

     "TLG" has the meaning set forth in the Recitals.

     "TLG Business" means the business and operations of the TLG Group as
currently conducted or contemplated to be conducted immediately prior to the
Closing.

     "TLG Group" means, collectively, TLG and its Subsidiaries.

     "TLG Material Adverse Effect" means any event, occurrence, fact, condition,
change, development or effect that is materially adverse to the business,
operations, prospects, results of operations, condition (financial or
otherwise), properties (including intangible properties), assets (including
intangible assets) or liabilities of (i) TLG, (ii) any Material TLG Subsidiary,
or (iii) the TLG Group taken as a whole.

     "TMG" has the meaning set forth in the Recitals.

     "TMG Business" means the business and operations of the TMG Group as
conducted or contemplated to be conducted immediately prior to the Closing.

     "TMG Group" means, collectively, TMG and its Subsidiaries.

     "TMG Material Adverse Effect" means any event, occurrence, fact, condition,
change, development or effect that is materially adverse to the business,
operations, prospects, results of operations, condition (financial or
otherwise), properties (including intangible properties), assets (including
intangible assets) or liabilities of (i) TMG, (ii) any Material TMG Subsidiary,
or (iii) the TMG Group taken as a whole.

                                     A-14
<PAGE>

     "Transfer" means, with respect to any property, any sale, transfer or other
disposition of, or the granting of any option or the right to acquire, such
property or any interest therein (other than any such disposition creating any
Lien), in each case whether effected directly or indirectly by means of a
Transfer of any interest in another Person.

     "Transfer of Common Stock" has the meaning set forth in Section 9.2(b).

     "Transfer of Common Stock Notice" has the meaning set forth in Section
9.2(b).

     "1998 Balance Sheets" has the meaning set forth in Section 2.7.

                                     A-15<PAGE>

                                                                    Exhibit 10.2

                                                                  EXECUTION COPY
                                                                  --------------

================================================================================

                         REGISTRATION RIGHTS AGREEMENT

                                    between

                                   BDM, INC.

                                      and

                                  DENTSU INC.

                          dated as of March 14, 2000

================================================================================
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                                                 Page
                                                                                                 ----
<S>                                                                                              <C>
ARTICLE I
DEFINITIONS......................................................................................    1

ARTICLE II
REGISTRATION RIGHTS..............................................................................    5
     2.1  Demand Registration....................................................................    5
     2.2  Piggyback Registration.................................................................    8
     2.3  Withdrawal Rights......................................................................    9
     2.4  Holdback Requirements..................................................................   10
     2.5  Registration Procedures................................................................   11
     2.6  Registration Expenses..................................................................   17
     2.7  Indemnification........................................................................   17
     2.8  Rule 144...............................................................................   20

ARTICLE III
GENERAL PROVISIONS...............................................................................   20
     3.1  Notices................................................................................   20
     3.2  GOVERNING LAW, ETC.....................................................................   21
     3.3  Arbitration............................................................................   22
     3.4  Judicial Procedure.....................................................................   23
     3.5  Successors; Assigns....................................................................   23
     3.6  Binding Effect.........................................................................   24
     3.7  Amendment; Waivers, etc................................................................   24
     3.8  Nominees for Beneficial Owners.........................................................   24
     3.9  No Inconsistent Agreements.............................................................   24
     3.10 Remedies..............................................................................    25
     3.11 Severability..........................................................................    25
     3.12 Headings..............................................................................    25
     3.13 Counterparts..........................................................................    25
     3.14 Interpretation........................................................................    25
     3.15 Entire Agreement......................................................................    25
</TABLE>

                                       i
<PAGE>

     REGISTRATION RIGHTS AGREEMENT, dated as of March 14, 2000, between BDM,
INC., a corporation organized under the laws of Delaware with its principal
office at 35 West Wacker Drive, Chicago, Illinois 60601 (together with its
successors and permitted assigns, the "Company"), and DENTSU INC., a company
organized under the laws of Japan, with its principal office at 1-11, Tsukiji,
Chuo-ku, Tokyo 104-8426, Japan (together with its successors and permitted
assigns, "Dentsu").

                                   RECITALS

     A.  Pursuant to an Investment Agreement, dated as of March 14, 2000,
between Dentsu and BDM (the "Investment Agreement"), Dentsu has purchased
4,274,248 shares of Class B Common Stock of the Company, par value $0.01 per
share (the "Class B Stock").

     B.  Dentsu may from time to time purchase additional shares of Class B
Stock from the Company pursuant to certain preemptive rights granted to Dentsu
under the Investment Agreement.

     C.  Under the Amended and Restated Certificate of Incorporation of the
Company being adopted pursuant to the Investment Agreement, the shares of Class
B Stock will be convertible at the option of the holder thereof into shares of
the Common Stock of the Company, par value $0.01 per share (the "Class A
Stock").

     D.  In satisfaction of one of the conditions precedent to Dentsu's
obligations under the Investment Agreement, the Company desires to enter into
this Agreement for the purpose of granting Dentsu certain registration rights
with respect to shares of Class A Stock that Dentsu may own from time to time,
including such shares issuable upon conversion of the Class B Stock issued or
issuable to Dentsu pursuant to the Investment Agreement.

     NOW, THEREFORE, in consideration of the mutual promises, covenants,
representations and warranties made herein and of the mutual benefits to be
derived herefrom, the parties hereto agree as follows:

                                   ARTICLE I
                                  DEFINITIONS

     For purposes of this Agreement, the following terms shall have the
following meanings:
<PAGE>

     "Agreement" means this Registration Rights Agreement, as the same may be
amended or modified from time to time in accordance with its terms.

     "Alliance Agreement" means that certain Alliance Agreement, of even date
herewith, between the Company and Dentsu, as the same may be amended or modified
from time to time in accordance with its terms.

     "Approved Piggyback Rights" has the meaning set forth in Section 2.1(f).

     "Approved Piggyback Sellers" has the meaning set forth in Section 2.1(f).

     "Business Day" means any day other than (i) a Saturday, Sunday or other day
on which commercial banks in Chicago, Illinois, London, England, or Tokyo, Japan
are authorized or obligated by law or executive order to close, (ii) December 29
and December 30 and (iii) the first Friday of December of each year (or such
other day as BDM from time to time designates as its "Breakfast Day").

     "Class A Stock" has the meaning set forth in the Recitals.

     "Class B Stock" has the meaning set forth in the Recitals.

     "Commission" means the United States Securities and Exchange Commission or
any successor agency.

     "Common Stock" means any class of common stock of the Company, including
without limitation, the Class A Stock and the Class B Stock.

     "Company" has the meaning set forth in the Heading.

     "Continuously Effective", with respect to a specified registration
statement, means that it shall not cease to be effective and available for
Transfers of Registrable Securities thereunder for longer than either (i) any 10
consecutive Business Days, or (ii) an aggregate of 15 Business Days during the
period specified in the relevant provision of this Agreement.

     "Deferral Period" has the meaning set forth in Section 2.1(d).

     "Delay Notice" has the meaning set forth in Section 2.1(d).

     "Demand Notice" has the meaning set forth in Section 2.1(a).

                                       2
<PAGE>

     "Demand Registration" has the meaning set forth in Section 2.1(a).

     "Demanding Holders" has the meaning set forth in Section 2.1(a).

     "Demanding Sellers" has the meaning set forth in Section 2.2(b).

     "Dentsu" has the meaning set forth in the Heading.

     "Exchange Act" means the Securities Exchange Act of 1934, or any successor
statute, and the rules and regulations of the Commission thereunder, all as the
same shall be in effect from time to time. Reference to a particular section of
the Securities Exchange Act of 1934 shall include a reference to the comparable
section, if any, of any such successor statute.

     "Initial Public Offering" means the first offering of shares of Common
Stock registered pursuant to the Securities Act.

     "Investment Agreement" has the meaning set forth in the Recitals.

     "Losses" has the meaning set forth in Section 2.7(a).

     "Majority Selling Holders" means those Selling Holders whose Registrable
Securities included in such registration represent a majority of the Registrable
Securities of all Selling Holders included therein.

     "Maximum Piggyback Number" has the meaning set forth in Section 2.2(b).

     "NASD" means the National Association of Securities Dealers, Inc.

     "NASDAQ" has the meaning set forth in Section 2.5(a)(xi).

     "Other Demand Rights" has the meaning set forth in Section 2.2(b).

     "Outstanding" as of a given date, as used with respect to Registrable
Securities, means both (i) any Registrable Securities that are outstanding as of
such date, and (ii) any Registrable Securities issuable on such date upon
conversion of any shares of Class B Stock then outstanding or then issuable upon
exercise by Dentsu or any Permitted Transferee of preemptive rights in
accordance with of the Investment Agreement.

     "Permitted Transferee" means any Person to whom Dentsu has assigned its
rights under this Agreement in accordance with the provisions of Section 3.5.

                                       3
<PAGE>

     "Person" means any natural person, firm, partnership, association,
corporation, company, limited liability company, trust, business trust or other
entity, and shall include any successor (by merger or otherwise) of such entity.

     "Piggyback Notice" has the meaning set forth in Section 2.2(a).

     "Piggyback Registration" has the meaning set forth in Section 2.2(a).

     "Primary Offering" has the meaning set forth in Section 2.2(b)(i).

     "Registrable Securities" means (i) any shares of Class A Stock held from
time to time by Dentsu or its Permitted Transferees, including, but not limited
to, any shares of Class A Stock issued upon conversion of any shares of Class B
Stock acquired pursuant to the Investment Agreement, (ii) any securities issued
or issuable with respect to any Common Stock referred to in clause (i), (A) upon
any conversion or exchange thereof (B) by way of stock dividend or stock split,
(C) in connection with a combination of shares, recapitalization,
reclassification, merger, consolidation or other reorganization or (D) in any
other manner. As to any particular Registrable Securities, once issued such
securities shall cease to be Registrable Securities when (x) a registration
statement registering such securities under the Securities Act has been declared
effective and such securities have been sold or otherwise Transferred by the
holder thereof pursuant to such effective registration statement, (y) such
securities are sold in accordance with Rule 144 or Rule 144A or (z) such
securities shall have ceased to be outstanding.

     "Registration Expenses" has the meaning set forth in Section 2.6.

     "Related Documents" means (i) this Agreement, (ii) the Investment
Agreement, (iii) the Alliance Agreement, and (iv) the Restated Charter, as each
such document may be amended or modified from time to time in accordance with
its respective terms.

     "Restated Charter" means the Amended and Restated Certificate of
Incorporation, substantially in the form of Exhibit A of the Investment
Agreement.

     "Rule 144" means Rule 144, or any successor provision, promulgated under
the Securities Act.

     "Rule 144A" means Rule 144A, or any successor provision, promulgated under
the Securities Act.

     "Securities Act" means the Securities Act of 1933, or any successor
statute, and the rules and regulations promulgated thereunder, all as the same
shall be in effect from

                                       4

<PAGE>

time to time. Reference to a particular section of the Securities Act of 1933
shall include a reference to the comparable section, if any, of any such
successor statute.

     "Selling Holder" means, with respect to a specified registration pursuant
to this Agreement, a Stockholder whose Registrable Securities are included in
such registration.

     "Stockholder" means Dentsu (so long as it holds Registrable Securities) and
any other holder of Registrable Securities to which Dentsu has assigned its
rights under this Agreement in accordance with the provisions of Section 3.5.

     "Transfer" shall mean and include the act of selling, giving, transferring,
creating a trust (voting or otherwise), assigning or otherwise disposing of
(other than pledging, hypothecating or otherwise transferring as security) (and
correlative words shall have correlative meanings); provided however, that any
transfer or other disposition upon foreclosure or other exercise of remedies of
a secured creditor after an event of default under or with respect to a pledge,
hypothecation or other transfer as security shall constitute a "Transfer".

     "Withdrawal Notice" has the meaning set forth in Section 2.3(a).

                                  ARTICLE II

                              REGISTRATION RIGHTS

     2.1  Demand Registration. (a) From and after the closing of the Initial
          -------------------
Public Offering, in the event the Company receives at any time a written request
(a "Demand Notice") from one or more Stockholders holding in the aggregate at
least a majority of the number of Registrable Securities then Outstanding (the
"Demanding Holders") that the Company file a registration statement under the
Securities Act for the sale or other disposition of Registrable Securities (a
"Demand Registration"), the Company shall promptly give written notice of such
request to each other Stockholder. Each such other Stockholder may elect, by
giving written notice (which written notice shall specify the number of
Registrable Securities intended to be disposed of by such Stockholder and the
intended method of distribution thereof) of such election to the Company within
10 days after receipt of the Company's notice, to have some or all of the
Registrable Securities held by it included in such registration.

          (b) Following receipt of a Demand Notice, the Company shall:

               (i) file the requested registration statement with the Commission
     as promptly as practicable, and use its reasonable best efforts to have the

                                       5

<PAGE>

     registration statement declared effective under the Securities Act as soon
     as reasonably practicable, in each instance giving due regard to the need
     to prepare current financial statements, conduct due diligence and complete
     other actions that are reasonably necessary to effect a registered public
     offering; and

               (ii) use its reasonable best efforts to keep such registration
     statement Continuously Effective for up to 270 days or until such earlier
     date as of which all Registrable Securities covered by such registration
     statement shall have been disposed of in the manner described in the
     registration statement. Notwithstanding the foregoing, if for any reason
     the effectiveness of a Demand Registration is suspended or postponed as
     permitted by Subsection (d) below, the foregoing period shall be extended
     by the aggregate number of days of such suspension or postponement, or
     extension, as the case may be.

          (c)  The Company shall not be required to effect a registration of
Registrable Securities pursuant to a Demand Registration: (i) prior to the
completion of the Initial Public Offering or (ii) on more than two occasions, or
(iii) at any time within 180 days after the effective date of the registration
statement previously filed by the Company, or which the Company intends to file
and is undertaking reasonable preparations to file, under the Securities Act
(other than a registration relating to the Company's employee benefit plans,
exchange offers by the Company or a merger or acquisition of a business or
assets by the Company including, without limitation, a registration on Form S-4
or Form S-8 or any successor form). For purposes of this Subsection (c),
registration shall not be deemed to have been effected (i) unless a registration
statement with respect thereto has become effective, (ii) if after such
registration statement has become effective, such registration or the related
offer, sale or distribution of Registrable Securities thereunder is interfered
with by any stop order, injunction or other order or requirement of the
Commission or other governmental agency or court for any reason not attributable
to Dentsu nor any of the Stockholders and such interference is not thereafter
eliminated, (iii) if the conditions to closing specified in any purchase
agreement or underwriting agreement, entered into in connection with such
registration are not satisfied or waived, other than by reason of a failure on
the part of Dentsu or any of the Stockholders or (iv) if 50% or more of the
securities requested to be included in such registration by the Stockholders are
excluded from such registration pursuant to Section 2.1(f). If the Company shall
have complied with its obligations under this Agreement, a right to demand a
registration pursuant to this Section 2.1 shall be deemed to have been satisfied
upon the earlier of (x) the date as of which all of the Registrable Securities
included therein shall have been disposed of pursuant to the registration
statement, and (y) the date as of which such Demand Registration shall have been
Continuously Effective for a period of 270 days, as such period may be extended
in accordance with Section 2.1(b)(ii) above.

                                       6
<PAGE>

          (d)  The Company shall be entitled to postpone for up to 120 days from
the date of receipt of such Demand Notice (the "Deferral Period") the filing of
any Demand Registration statement otherwise required to be prepared and filed
pursuant to this Section 2.1, if (i) the Board of Directors of the Company
determines, in its good faith reasonable judgment (with the concurrence of the
managing underwriter, if any), that such registration and the Transfer
of Registrable Securities contemplated thereby would materially interfere with
and require premature disclosure of, any financing, acquisition, reorganization
or other similar transaction involving the Company, which disclosure would not
be required to be made independent of such registration, (ii) the Company
promptly (but in any event within 10 Business Days after receipt of a Demand
Notice or three Business Days after the date on which the Company makes such
determination, if later) gives the Demanding Holders notice (a "Delay Notice")
of such determination setting forth in reasonable detail the reasons for such
delay and certifying as to the determination of the Board of Directors of the
Company referred to in the preceding clause (i), and (iii) the Company has not
given a Delay Notice within the 180-day period ending on the date of receipt of
the Demand Notice in respect of such Demand Registration.

          (e)  A registration pursuant to this Section 2.1 shall be on such
appropriate registration form of the Commission as shall (i) be selected by the
Company and be reasonably acceptable to the Majority Selling Holders and (ii)
permit the disposition of the Registrable Securities in accordance with the
intended method or methods of disposition specified in the request made pursuant
to Subsection (a) above. The Selling Holders shall have the right, at the
request of the Majority Selling Holders, to distribute the securities covered by
any registration pursuant to this Section 2.1 pursuant to an underwritten
offering (whether on a "firm", "reasonable efforts" or "all reasonable efforts"
basis or otherwise), or an agented offering, in which case the Majority Selling
Holders shall have the right to select the underwriter or underwriters and
manager or managers to administer such underwritten offering or the placement
agent or agents for such agented offering, subject to the approval of the
Company, such approval not to be unreasonably withheld.

          (f)  The Company may include in any Demand Registration equity
securities proposed to be sold (x) for the account of the Company or (y) for the
account of any other Person to which the Company acting in good faith has
granted piggyback rights applicable to such registration ("Approved Piggyback
Rights"), provided that if in the case of an underwritten offering the managing
underwriter advises the Selling Holders and the Company that, in its opinion,
the inclusion of all the securities sought to be included in such Demand
Registration by the Selling Holders, the Company, and any Persons exercising
Approved Piggyback Rights ("Approved Piggyback Sellers") would adversely affect
the marketability of the Registrable Securities sought to be sold pursuant to
such Demand Registration by the Selling Holders, then at the request of the
Majority Selling Holders the Company shall include in the registration statement
applicable to such

                                       7
<PAGE>

Demand Registration only such number of securities as such underwriter advises
can be sold without such an effect in the following order of priority: (i)
first, the Registrable Securities sought to be included in such registration by
the Selling Holders on a pro rata basis and (ii) second, the securities sought
to be included in such registration by the Company and any Approved Piggyback
Sellers, in such order of priority as the Company shall determine.

     2.2  Piggyback Registration. (a) Following the closing of the Initial
          ----------------------
Public Offering, whenever the Company proposes to register shares of Common
Stock under the Securities Act (other than a registration relating to the
Company employee benefit plans, exchange offers by the Company or a merger or
acquisition of a business or assets by the Company including, without
limitation, a registration on Form S-4 or Form S-8 or any successor form) (a
"Piggyback Registration"), the Company shall give all Stockholders prompt
written notice thereof (but not less than 20 Business Days prior to the filing
by the Company with the Commission of any registration statement with respect
thereto). Such notice (a "Piggyback Notice") shall specify, at a minimum, the
class and number of securities proposed to be registered, the proposed date of
filing of such registration statement with the Commission, the proposed means of
distribution, the proposed managing underwriter or underwriters (if any and if
known), and a good faith estimate by the Company of the expected range of
offering prices for such securities. Upon the written request of any Stockholder
given within 15 Business Days of such Stockholder's receipt of the Piggyback
Notice (which written request shall specify the number of Registrable Securities
intended to be disposed of by such Stockholder and the intended method of
distribution thereof), the Company shall include in such registration all
Registrable Securities with respect to which the Company has received such
written requests for inclusion.

          (b)  If, in connection with a Piggyback Registration, any managing
underwriter (or, if such Piggyback Registration is not an underwritten offering,
a nationally recognized independent underwriter selected by the Company) advises
the Company and the Selling Holders seeking to participate in such Piggyback
Registration that, in its opinion, the inclusion of all the securities sought to
be included in such Piggyback Registration by the Company, any Approved
Piggyback Sellers, any Persons who have sought to have shares registered
thereunder pursuant "demand" registration rights ("Other Demand Rights", with
such Persons being "Demanding Sellers"), and any other proposed sellers, in each
case, if any, would adversely affect the marketability of the securities sought
to be sold pursuant thereto, then the Company shall include in the registration
statement applicable to such Piggyback Registration only such securities as such
underwriter advises can be sold without such an effect (the "Maximum Piggyback
Number"), as follows and in the following order of priority:

                                       8
<PAGE>

               (i)  if the Piggyback Registration is an offering initiated by
     the Company on its own behalf (a "Primary Offering"), then (A) first, such
     number of securities to be sold by the Company as the Company, in its
     reasonable judgement and acting in good faith and in accordance with sound
     financial practice, shall have determined, (B) second, on a pro rata basis
     (x) such number of Registrable Securities sought to be registered by each
     Selling Holder, pro rata in proportion to the number of securities sought
     to be registered by all such Selling Holders and (y) such number of
     securities sought to be registered by any Approved Piggyback Seller, pro
     rata in proportion to the number of securities sought to be registered by
     all such other Approved Piggyback Sellers, and (C) third, any other
     securities requested to be included in such registration.

               (ii) if the Piggyback Registration is an offering resulting from
     the exercise of Other Demand Rights, then (A) first, on a pro rata basis
     (unless otherwise agreed by the Company with the Demanding Sellers), (x)
     such number of securities sought to be registered by each Demanding Seller,
     pro rata in proportion to the number of securities sought to be registered
     by all such Demanding Sellers, and (y) such number of securities to be sold
     by the Company as the Company, in its reasonable judgement and acting in
     good faith and in accordance with sound financial practice, shall have
     determined, (B) second, if the number of securities to be included under
     clause (A) above is less than the Maximum Piggyback Number, on a pro rata
     basis, (x) such number of Registrable Securities sought to be registered by
     each Selling Holder, pro rata in proportion to the number of securities
     sought to be registered by all such Selling Holders, and (y) such number of
     securities sought to be registered by any Approved Piggyback Seller, pro
     rata in proportion to the number of securities sought to be registered by
     all such Approved Piggyback Sellers, and (C) third, other securities
     requested to be included in such registration.

          (c)  If, at any time after giving written notice of its intention to
register any of its securities as set forth in this Section 2.2 and prior to the
time the registration statement filed in connection with such registration is
declared effective, the Company shall determine for any reason not to register
such securities, the Company may, at its election, give written notice of such
determination to each Stockholder and thereupon shall be relieved of its
obligation to register any Registrable Securities in connection with such
particular withdrawn or abandoned registration (but not from its obligation to
pay the Registration Expenses in connection therewith as provided herein).

     2.3  Withdrawal Rights. (a) Any Stockholder having delivered a Demand
          -----------------
Notice to include any or all of its Registrable Securities in a Demand
Registration pursuant to Section 2.1 shall have the right to withdraw such
Demand Notice in the following

                                       9
<PAGE>

circumstances by giving the Company written notice of such withdrawal (a
"Withdrawal Notice") within the time provided and prior to the effectiveness of
the related registration statement: (i) the Company has given a Delay Notice and
the Withdrawal Notice is given within 30 days after the receipt by such
Stockholder of such Delay Notice; (ii) a registration statement has not become
effective within 120 days after the date of termination of a Deferral Period
with respect to which such Stockholder elected not to give a Withdrawal Notice
and the Withdrawal Notice pursuant to this clause (ii) is given within 3
Business Days after the end of such 120-day period; and (iii) a registration
statement with respect to which there has been no Deferral Period has not become
effective within 120 days after the date of receipt of the related Demand Notice
and the Withdrawal Notice is given within 3 Business Days after the end of such
120-day period. In the event of any such withdrawal, the Company shall not
include such Registrable Securities in the applicable registration and such
Registrable Securities shall continue to be Registrable Securities hereunder. No
such withdrawal shall affect the obligations of the Company with respect to any
Registrable Securities not so withdrawn.

          (b)  Any Stockholder having notified or directed the Company to
include any or all of its Registrable Securities in a registration statement
pursuant to Section 2.2 shall have the right to withdraw any such notice or
direction with respect to any or all of the Registrable Securities designated
for registration thereby by giving written notice to such effect to the Company
prior to the effective date of such registration. In the event of any such
withdrawal, the Company shall not include such Registrable Securities in the
applicable registration and such Registrable Securities shall continue to be
Registrable Securities hereunder. No such withdrawal shall affect the
obligations of the Company with respect to any Registrable Securities not so
withdrawn.

     2.4  Holdback Requirements. If and whenever the Company proposes to
          ---------------------
register any of its equity securities under the Securities Act for its own
account (other than on Form S-4 or Form S-8 or any successor form) or is
required to use its reasonable best efforts to effect the registration of any
Registrable Securities under the Securities Act pursuant to Section 2.5 or
pursuant to any demand registration rights granted by the Company, acting in
good faith, to any other holder of equity securities of the Company (provided
that the agreement granting such demand rights to such other holder contains
holdback restrictions comparable to those set forth in this Section 2.4 with
respect to any Demand Registration effected hereunder), each Stockholder
agrees, if required by the managing underwriter, not to effect any public sale
or distribution (including sales pursuant to Rule 144) of equity securities of
the Company, or any securities convertible into or exchangeable or exercisable
for such securities, for the seven days prior to, and for such period of time as
reasonably required by the managing underwriter (not to exceed 180 days)
immediately following, the effective date of the registration statement relating
to such registration, except as part of such registration. The Company agrees,
if required by

                                       10
<PAGE>

the managing underwriter, not to effect (other than pursuant to such
registration) any public sale or distribution, or to file any registration
statement (other than such registration or a registration on Form S-4 or Form S-
8 or any successor form) covering any of its equity securities, or any
securities convertible into or exchangeable or exercisable for such securities,
during the seven days prior to, or for such period of time reasonably required
by the managing underwriter (not to exceed 180 days) immediately following,
the effective date of any registration statement filed in connection with a
Demand Registration.

     2.5  Registration Procedures. (a) Whenever the Stockholders have requested
          -----------------------
that any Registrable Securities be registered pursuant to this Agreement, the
Company (subject to its right to withdraw such registration as contemplated by
Section 2.2(c)) shall use its reasonable best efforts to effect the
registration and the sale of such Registrable Securities in accordance with
Section 2.1 or 2.2 hereof (as applicable) and, in connection therewith, the
Company shall as expeditiously as possible:

               (i)   prepare and file with the Commission a registration
     statement with respect to such Registrable Securities on any form for which
     the Company then qualifies and is available for the sale of Registrable
     Securities to be registered thereunder in accordance with Section 2.1 or
     2.2 hereof (as applicable) and use its reasonable best efforts to cause
     such registration statement to become effective within ninety (90) days of
     the date of such filing;

               (ii)  prepare and file with the Commission such amendments and
     supplements to such registration statement and the prospectus used in
     connection therewith as may be necessary to keep such registration
     statement effective for a continuous period of not less than 180 days (or,
     if earlier, until all Registrable Securities included in such registration
     statement have been sold thereunder in accordance with the manner of
     distribution set forth therein) and comply with the provisions of the
     Securities Act with respect to the disposition of all securities covered by
     such registration statement during such period in accordance with Section
     2.1 or 2.2 hereof (as applicable) by the Selling Holders thereof as set
     forth in such registration statement (including, without limitation, by
     incorporating in a prospectus supplement or post-effective amendment, at
     the request of any Selling Holder, the terms of the sale of such Selling
     Holder's Registrable Securities);

               (iii) before filing with the Commission any such registration
     statement or prospectus or any amendments or supplements thereto, the
     Company shall furnish to counsel for the Selling Holders, if any, in
     connection therewith, drafts of all such documents proposed to be filed and
     provide such counsel with a reasonable opportunity for review thereof and
     comment thereon, such review to

                                       11
<PAGE>

     be conducted and such comments to be delivered with reasonable promptness;
     provided that, in the case of a Demand Registration, the Company shall not
     file any such documents if the Selling Holders shall have reasonably
     objected on the grounds that such documents do not comply in all material
     respects with the requirements of the Securities Act;

               (iv)  promptly before filing with the Commission any document
     which is to be incorporated by reference into any such registration
     statement or prospectus (after initial filing of the registration
     statement), provide copies of such document to the Selling Holders, make
     the Company's representatives available for discussion of such document and
     make such changes in such document prior to the filing thereof as the
     Selling Holders may reasonably request within three Business Days of
     receipt thereof;

               (v)   promptly (A) notify each Selling Holder and (if requested
     by such Selling Holder) confirm such advice in writing of each of (1) the
     filing and effectiveness of the registration statement and prospectus and
     any amendment or supplements thereto, (2) the receipt of any comments from
     the Commission or any state securities law authorities or any other
     governmental authorities with respect to any such registration statement or
     prospectus or any amendments or supplements thereto, or any requests by the
     Commission for amendments or supplements thereto or for additional
     information, and (3) any oral or written stop order with respect to such
     registration, any suspension of the registration or qualification of the
     sale of such Registrable Securities in any jurisdiction or any initiation
     or threatening of any proceedings with respect to any of the foregoing and
     (B) use its reasonable efforts to obtain the withdrawal of any order
     suspending the registration or qualification (or the effectiveness thereof)
     or suspending or preventing the use of any related prospectus in any
     jurisdiction with respect thereto;

               (vi)  furnish to each Selling Holder, the underwriters and the
     sales or placement agent, if any, and counsel for each of the foregoing, a
     conformed copy of such registration statement and each amendment and
     supplement thereto (in each case, including all exhibits thereto and
     documents incorporated by reference therein) and such additional number of
     copies of such registration statement, each amendment and supplement
     thereto (in such case without such exhibits and documents) the prospectus
     (including each preliminary prospectus) included in such registration
     statement and prospectus supplements and all exhibits thereto and documents
     incorporated by reference therein and such other documents as such Selling
     Holder or its counsel may reasonably request in order to facilitate the
     disposition of the Registrable Securities owned by such Selling Holder

                                       12
<PAGE>

               (vii)   if requested by the managing underwriter or underwriters
     of any registration, subject to approval of counsel to the Company in its
     reasonable judgment, promptly incorporate in a prospectus, supplement or
     post-effective amendment to the registration statement such information
     concerning underwriters and the plan of distribution of the Registrable
     Securities as such managing underwriter or underwriters or such folders
     reasonably shall furnish to the Company in writing and request be included
     therein, including, without limitation, with respect to the number of
     Registrable Securities being sold by such holders to such underwriter or
     underwriters, the purchase price being paid by such underwriter or
     underwriters and with respect to any other terms of the underwritten
     offering of the Registrable Securities to be sold in such offering, and
     make all required filings of such prospectus, supplement or post-effective
     amendment as soon as possible after being notified of the matters to be
     incorporated in such prospectus, supplement or post-effective amendment;

               (viii)  use its reasonable best efforts to register or qualify
     such Registrable Securities and other securities covered by such
     registration statement under such securities or "blue sky" laws of such
     jurisdictions as may reasonably be requested by the managing underwriter
     (or, in the case of an offering that is not underwritten, the Majority
     Selling Holders) and do any and all other acts and things which may be
     reasonably necessary or advisable to enable the Selling Holders to
     consummate the disposition in such jurisdictions of their Registrable
     Securities and keep such registration or qualification in effect for so
     long as the registration statement remains effective under the Securities
     Act (provided that the Company shall not be required to (A) qualify
     generally to do business in any jurisdiction where it would not otherwise
     be required to qualify but for this paragraph, (B) subject itself to
     taxation in any such jurisdiction where it would not otherwise by subject
     to taxation but for this paragraph or (C) consent to the general service of
     process in any jurisdiction where it would not otherwise be subject to
     general service of process but for this paragraph);

               (ix)    use its reasonable best efforts to cause such Registrable
     Securities to be registered with or approved by such other United States
     federal or state governmental agencies or authorities as may be reasonably
     requested by the Stockholders and necessary to enable the Stockholders to
     consummate the disposition of such Registrable Securities in accordance
     with the specified plan of distribution;

               (x)     notify each Selling Holder, at any time when a prospectus
     relating thereto is required to be delivered under the Securities Act upon
     the discovery that, or of the happening of any event as a result of which,
     the registration

                                       13
<PAGE>

     statement covering such Registrable Securities, as then in effect, contains
     an untrue statement of a material fact or omits to state any material fact
     required to be stated therein or any fact necessary to make the statements
     therein not misleading, and promptly prepare and furnish to each such
     Selling Holder a supplement or amendment to the prospectus contained in
     such registration statement so that such Registration Statement shall not,
     and such prospectus as thereafter delivered to the purchasers of such
     Registrable Securities shall not, contain an untrue statement of a material
     fact or omit to state any material fact required to be stated therein or
     any fact necessary to make the statements therein not misleading;

               (xi)   cause all such Registrable Securities to be listed on the
     New York Stock Exchange and/or any other securities exchange and included
     in each established over-the-counter market on which or through which
     similar securities of the Company are listed or traded and, if not so
     listed or traded, to be listed on the Nasdaq Stock Market ("NASDAQ") and if
     listed on NASDAQ, use its reasonable efforts to secure designation of all
     such Registrable Securities covered by such registration statement as a
     NASDAQ "national market system security" within the meaning of Rule 11Aa2-
     1 under the Securities Exchange Act of 1934, as amended, or, failing that,
     to secure NASDAQ authorization for such Registrable Securities, and,
     without limiting the foregoing, to arrange for at least two market makers
     to register as such with respect to such securities within the NASD;

               (xii)  provide and cause to be maintained transfer agents and
     registrars for all Registrable Securities covered by such registration
     statement from and after a date not later than the effective date of such
     registration statement and obtain a CUSIP number for such Registrable
     Securities;

               (xiii) give any Selling Holder, any underwriter participating in
     any disposition pursuant to such registration statement, and any attorney,
     accountant or other agent retained by any such Selling Holder or any
     underwriter the opportunity to participate in the preparation of such
     registration statement, each prospectus included therein or filed with the
     Commission, and each amendment thereof or supplement thereto, and make
     available for inspection by any such Selling Holder and any underwriters,
     attorneys, accountants or agents all financial and other records, pertinent
     corporate documents and properties of the Company, and cause the Company's
     officers, directors, employees, attorneys and independent accountants to
     supply all information reasonably requested by any such Selling Holder and
     any underwriters, attorneys, accountants or agents in connection with such
     registration statement. Information which the Company

                                       14
<PAGE>

     determines, in good faith, to be confidential shall not be disclosed by
     such person unless (A) the disclosure of such information is necessary to
     avoid or correct a misstatement or omission in such registration statement,
     or (B) the release of such information is ordered pursuant to a subpoena or
     other order from a court of competent jurisdiction. Each Selling Holder
     agrees, on its own behalf and on behalf of all its underwriters,
     accountants, attorneys and agents, that the information obtained by it as a
     result of such inspections shall be deemed confidential and shall not be
     used by it as the basis for any market transactions in the securities of
     the Company unless and until such is made generally available to the
     public. Each Selling Holder further agrees, on its own behalf and on behalf
     of all its underwriters, accountants, attorneys and agents, that it will,
     upon learning that disclosure of such information is sought in a court of
     competent jurisdiction, give notice to the Company and allow the Company,
     at its expense, to undertake appropriate action to prevent disclosure of
     the information deemed confidential;

               (xiv)   use its reasonable best efforts to comply with all
     applicable laws related to such registration statement and offering and
     sale of securities and all applicable rules and regulations of governmental
     authorities in connection therewith (including, without limitation, the
     Securities Act and the Exchange Act) and make generally available to its
     security holders as soon as practicable (but in any event not later than
     fifteen months after the effectiveness of such registration statement) an
     earnings statement of the Company and its subsidiaries complying with
     Section 11(a) of the Securities Act and Rule 158 under the Securities Act;
     and

               (xv)    use its reasonable best efforts to furnish to each such
     Selling Holder a signed counterpart, addressed to such Selling Holder,
     of (A) an opinion of counsel for the Company and (B) a "comfort" letter
     signed by the independent public accountants who have certified the
     Company's financial statements included or incorporated by reference in
     such registration statement, covering substantially the same matters with
     respect to such registration statement (and prospectus included therein)
     and, in the case of the accountants' comfort letter, with respect to events
     subsequent to the date of such financial statements, as are customarily
     covered in opinions of issuer's counsel and in accountants' comfort letters
     delivered to the underwriters in underwritten public offerings of
     securities for the account of, or on behalf of, an issuer of common stock,
     such opinion and comfort letters to be dated the date of such opinions and
     comfort letters are customarily dated in such transactions.

          (b)  Without limiting any of the foregoing, in the event that the
offering of Registrable Securities is to be made by or through an underwriter,
the Company shall enter

                                       15
<PAGE>

into an underwriting agreement with a managing underwriter or underwriters
containing representations and warranties and such other terms and provisions as
are customarily included (but not inconsistent with the agreements contained
herein) in underwriting agreements with respect to secondary distributions,
including, but not limited to, indemnities to the effect and to the extent
provided in Section 2.7, provisions for the delivery of officers' certificates,
opinions of counsel and accountants' "comfort" letters and hold-back
arrangements. The Selling Holders shall be a party to any such underwriting
agreement and the representations and warranties by, and the other agreements on
the part of, the Company to and for the benefit of such underwriters, shall also
be made to and for the benefit of the Selling Holders and any or all of the
conditions precedent to the obligations of such underwriters under such
underwriting agreement shall also be conditions precedent to the obligations of
the Selling Holders. The Selling Holders shall not be required by the Company to
make any representations or warranties to or agreements with the Company or the
underwriters other than representations and warranties customarily made by
selling securities holders in comparable offerings. In connection with any
offering of Registrable Securities registered pursuant to this Agreement, the
Company shall (i) furnish to the underwriter, if any (or, if no underwriter,
Selling Holders), unlegended certificates representing ownership of the
Registrable Securities being sold, in such denominations as requested and in a
form eligible for deposit with The Depository Trust Company or similar
depository institution, (ii) instruct any transfer agent and registrar of the
Registrable Securities to release any stop transfer order with respect thereto
and (iii) enable such Registrable Securities to be registered in such names as
the Selling Holders may request at least two (2) Business Days prior to any sale
of Registrable Securities.

          (c)  Each Selling Holder agrees that upon receipt of any notice from
the Company of the happening of any event of the kind described in Section
2.5(a)(x), such Selling Holder shall forthwith discontinue its disposition of
Registrable Securities pursuant to the applicable registration statement and
prospectus relating thereto until such Selling Holder's receipt of the copies of
the supplemented or amended prospectus contemplated by Section 2.5(a)(x) and, if
so directed by the Company, deliver to the Company all copies, other than
permanent file copies, then in such Selling Holder's possession of the
prospectus current at the time of receipt of such notice relating to such
Registrable Securities. In the event the Company shall give such notice, the
period during which such registration statement must remain effective pursuant
to this Agreement shall be extended by the number of days during the period from
the date of giving of a notice regarding the happening of an event of the kind
described in Section 2.5(a)(x) to the date when all such sellers shall receive
such a supplemented or amended prospectus and such prospectus shall have been
filed with the Commission.

                                       16
<PAGE>

     2.6  Registration Expenses. All expenses incident to the Company's
          ---------------------
performance of, or compliance with, its obligations under this Agreement
including, without limitation, (w) all registration and filing fees, including
NASD fees and fees and expenses associated with filings required to be made with
any national securities exchange or national computerized market system
(including, if required, the fees and expenses of any "qualified independent
underwriter" and its counsel), (x) all fees and expenses of compliance with
securities and "blue sky" laws, including reasonable fees and disbursements
of counsel effecting blue sky qualifications, (y) all word processing, printing
and copying expenses, all messenger and delivery expenses, and (z) all fees and
expenses of underwriters and sales and placement agents in connection therewith
(excluding discounts and commissions), all fees and expenses of the Company's
independent certified public accountants and counsel (including, without
limitation, with respect to "comfort" letters and opinions) and of any Person,
including special experts, retained by the Company in connection with such
performance and compliance (collectively, the "Registration Expenses") shall be
borne by the Company; provided, however, that in the case of a Demand
Registration, the Company shall not be required to pay for any expenses of any
registration proceeding begun pursuant to Section 2.1 if the registration is
subsequently withdrawn prior to the effective date of the related registration
statement at the request of the Majority Selling Holders (in which case all
Selling Holders shall bear such expenses), unless (A) Stockholders whose
Registrable Securities constitute a majority of the Registrable Securities then
Outstanding agree that such withdrawn registration shall constitute the exercise
of one of its demand registrations under Section 2.1 hereof (which they may do
on not more than one occasion) or (B) such withdrawal was made in accordance
with Section 2.3(a). Notwithstanding the foregoing, the Company shall not be
responsible for the fees and expenses of any counsel, or any of the accountants,
agents or experts retained by the Selling Holders in connection with the sale of
Registrable Securities. The Company will pay its internal expense (including,
without limitation, all salaries and expenses of its officers and employees
performing legal or accounting duties and the expense of any annual audit and
the expense of any liability insurance).

     2.7  Indemnification. (a) The Company agrees to indemnify, to the fullest
          ---------------
extent permitted by law, and hold harmless each Selling Holder, its officers,
directors, employees and agents and each Person who controls (within the meaning
of the Securities Act) such Selling Holder or such an other indemnified Person
against all losses, claims, damages, liabilities (or proceedings in respect
thereof) and expenses (under the Securities Act or common law or otherwise)
(collectively, the "Losses"), joint or several, caused by, resulting from or
relating to any untrue or alleged untrue statement of a material fact contained
in any registration statement, prospectus or preliminary prospectus or any
amendment thereof or supplement thereto or any omission or alleged omission of a
material fact required to be stated therein or a material fact necessary to make
the statements therein not misleading, except insofar as the same are caused by
or contained in any

                                       17
<PAGE>

information furnished to the Company in writing by such Selling Holder expressly
for use therein or by such Selling Holder's failure to deliver a copy of the
registration statement or prospectus or any amendments or supplements thereto
after the Company has furnished such Selling Holder with a sufficient number of
copies of the same. If the offering pursuant to any registration statement
provided for herein is made through underwriters, no action or failure to act on
the part of such underwriters (whether or not such underwriter is an affiliate
of the Selling Holders) shall affect the obligations of the Company to indemnify
the Selling Holder or any other Person pursuant to the preceding sentence. In
connection with an underwritten offering and without limiting any of the
Company's other obligations under this Agreement, the Company shall indemnify
such underwriters, their officers, directors, employees and agents and each
Person who controls (within the meaning of the Securities Act) such underwriters
or such an other indemnified Person to the same extent as provided above with
respect to the indemnification of the Selling Holders.

          (b)  In connection with any registration in which a Selling Holder is
participating, each such Selling Holder will furnish to the Company in writing
information regarding such Selling Holder's ownership of Registrable Securities
and its intended method of distribution thereof and, to the extent permitted by
law, shall indemnify and hold harmless the Company, its directors, officers,
employees and agents and each Person who controls (within the meaning of the
Securities Act) the Company or such an other indemnified Person against all
Losses caused by, resulting from or relating to any untrue or alleged untrue
statement of a fact contained in the registration statement, prospectus or
preliminary prospectus or any amendment thereof or supplement thereto or any
omission or alleged omission of a fact required to be stated therein or
necessary to make the statements therein not misleading, but only to the extent
that such untrue statement or omission is caused by and contained in such
information so furnished in writing by such Selling Holder expressly for use
therein.

          (c)  Any Person entitled to indemnification hereunder shall give
prompt written notice to the indemnifying party of any claim with respect to
which its seeks indemnification; provided, however, the failure to give such
notice shall not release the indemnifying party from its obligation, except to
the extent that the indemnifying party has been materially prejudiced by such
failure to provide such notice.

          (d)  In any case in which any such action is brought against any
indemnified party, and it notifies an indemnifying party of the commencement
thereof, the indemnifying party will be entitled to participate therein, and, to
the extent that it may wish, jointly with any other indemnifying party similarly
notified, to assume the defense thereof, with counsel reasonably satisfactory to
such indemnified party, and after notice from the indemnifying party to such
indemnified party of its election so to assume the defense

                                       18
<PAGE>

thereof the indemnifying party will not (so long as it shall continue to have
the right to defend, contest, litigate and settle the matter in question in
accordance with this paragraph) be liable to such indemnified party hereunder
for any legal or other expense subsequently incurred by such indemnified
party in connection with the defense thereof other than reasonable costs
of investigation, supervision and monitoring (unless such indemnified
party reasonably objects to such assumption on the grounds that there may be
defenses available to it which are different from or in addition to the defenses
available to such indemnifying party, in which event the indemnified party shall
be reimbursed by the indemnifying party for the expenses incurred in connection
with retaining separate legal counsel). An indemnifying party shall not be
liable for any settlement of an action or claim effected without its consent.
The indemnifying party shall lose its right to defend, contest, litigate and
settle a matter if it shall fail to diligently contest such matter (except to
the extent settled in accordance with the next following sentence). No matter
shall be settled by an indemnifying party without the consent of the indemnified
party (which consent shall not be unreasonably withheld). Any underwriting
agreement entered into with respect to any registration statement provided for
under this Agreement shall provide for indemnification in accordance with this
Subsection (d).

          (e)  The indemnification provided for under this Agreement shall
remain in full force and effect regardless of any investigation made by or on
behalf of the indemnified Person and will survive the transfer of the
Registrable Securities and the termination of this Agreement.

          (f)  Indemnification similar to that specified in the preceding
subsections of this Section 2.7 (with appropriate modifications) shall be given
by the Company to the Selling Holders, on the one hand, and by the Selling
Holders to the Company, on the other hand, with respect to any required
registration or other qualification of such Registrable Securities under any
federal or state law or regulation of any governmental authority other than the
Securities Act.

          (g)  The indemnification required by this Section 2.7 shall be made by
periodic payments of the amount thereof during the course of the investigation
or defense, as and when bills are received or expense, loss, damage or liability
is incurred. Any indemnified party receiving indemnification payments will repay
the same to the Company in the event it is ultimately determined that such party
was not entitled to indemnification hereunder or that such indemnification
payments were not permitted by applicable law.

          (h)  If recovery is not available under the foregoing indemnification
provisions for any reason or reasons, or is insufficient to hold harmless an
indemnified party, other than as specified therein, any Person who would
otherwise be entitled to indemnification by the terms thereof shall nevertheless
be entitled to contribution with

                                       19
<PAGE>

respect to any Losses with respect to which such Person would be entitled to
such indemnification but for such reason or reasons. In determining the amount
of contribution to which the respective Persons are entitled, there shall be
considered the Persons' relative knowledge and access to information concerning
the matter with respect to which the claim was asserted, the opportunity to
correct and prevent any statement or omission, and other equitable
considerations appropriate under the circumstances. It is hereby agreed that it
would not necessarily be equitable if the amount of such contribution were
determined by pro rata or per capita allocation. No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act)
shall be entitled to contribution from any person who was not found guilty of
such fraudulent misrepresentation.

     2.8  Rule 144. At all times after the Initial Public Offering, the Company
          --------
will file the reports required to be filed by it under the Securities Act and
the rules and regulations adopted by the Commission thereunder, and will take
such further action as the Stockholders may reasonably request, all to the
extent required from time to time to enable the Stockholders to sell Registrable
Securities without registration under the Securities Act within the limitation
of the exemptions provided by Rule 144 or any similar rule or regulation
hereafter adopted by the Commission. Upon the request of the Stockholders, the
Company will deliver to the Stockholders a written statement as to whether it
has complied with such requirements.

                                  ARTICLE III
                              GENERAL PROVISIONS

     3.1  Notices. (a) All notices, requests, demands and other communications
          -------
under this Agreement shall be in writing and shall be either (i) personally
delivered, (ii) sent by Federal Express or other reputable overnight carrier or
(iii) sent by telecopier (with a copy also sent by reputable overnight carrier,
postage prepaid) to the party for which it is intended at the following address:

     (1)  if to Dentsu, to:

          Deutsu Inc.
          1-11, Tsukiji, Chuo-ku
          Tokyo 104-8426, Japan
          Attention: Mr. Fumio Oshima, Managing Director
          Telecopier No. (813) 5551-2009

                                       20
<PAGE>

          with a copy to:

          Debevoise & Plimpton
          875 Third Avenue
          New York, NY 10022
          Attention: Louis Begley
          Telecopier No. (212) 909-6836

or to such other address as Dentsu may have designated by notice
hereunder, and

     (2)  if to the Company, to:

          BDM, Inc.
          35 West Wacker Drive
          Chicago, Illinois 60601
          Attention: Mr. Christian E. Kimball, Chief Administrative
          Officer
          Telecopier No. (312) 220-4029

with a copy to:

          Sidley & Austin
          875 Third Avenue
          New York, NY 10022
          Attention: Michael H. Yanowitch
          Telecopier No. (212) 906-2021

or to such other address as the Company may have designated by notice
hereunder.

(b) Every notice, demand, request or other communication
hereunder shall be deemed to have been duly given or served: (i) on
the date on which personally delivered, with receipt acknowledged,
(ii) two Business Days after timely delivery to Federal Express or
another overnight courier service, if sent by courier or (iii) upon
transmission thereof by the sender and issuance by the transmitting
machine of a confirmation slip confirming that the number of pages
constituting the communication have been transmitted without error, if
telecopied (subject to a copy of such communication also being sent by
reputable overnight courier).

3.2   GOVERNING LAW, ETC. THIS AGREEMENT SHALL BE GOVERNED IN ALL
      ------------------
RESPECTS, INCLUDING AS TO VALIDITY, INTERPRETATION AND EFFECT, BY THE
INTERNAL LAWS OF THE STATE OF NEW YORK, WITHOUT GIVING EFFECT TO
PRINCIPLES OR RULES OF

                                       21
<PAGE>

CONFLICT OF LAWS TO THE EXTENT SUCH PRINCIPLES OR RULES WOULD REQUIRE OR PERMIT
THE APPLICATION OF LAWS OF A JURISDICTION OTHER THAN THE STATE OF NEW YORK.

     3.3  Arbitration. (a) Any dispute, controversy or claim arising out of,
          -----------
relating to, or in connection with, this Agreement, or the breach, termination
or validity thereof, will be submitted to the Chief Executive Officer of BDM and
the President of Dentsu as soon as reasonably practicable for resolution.

          (b)  If the Chief Executive Officer of BDM and the President of Dentsu
are unable to resolve any such dispute, controversy or claim, such dispute,
controversy or claim shall be finally settled by binding arbitration. The
arbitration shall be conducted in accordance with the CPR Institute for Dispute
Resolution Rules for Non-Administered Arbitration of International Disputes in
effect at the time of the arbitration, except as they may be modified herein or
by mutual agreement of the parties. The seat of the arbitration shall be New
York City, United States, and it shall be conducted in the English language
provided that either party may submit testimony or documentary evidence in any
language if it furnishes, upon the request of the other party, a translation
into English of any such testimony or documentary evidence. The neutral
organization designated to perform the functions specified in Rule 6 and Rules
7.7(b), 7.8 and 7.9 shall be the CPR Institute for Dispute Resolution.
Notwithstanding Section 3.2 of this Agreement the arbitration and this clause
shall be governed by Title 9 (Arbitration) of the United States Code.

          (c)  The arbitration shall be conducted by three arbitrators. The
arbitrators shall be selected as provided in the rules specified above.

          (d)  In order to facilitate the comprehensive resolution of related
disputes, and upon request of any party to the arbitration proceeding, the
arbitration tribunal may, within 90 days of its appointment, consolidate the
arbitration proceeding with any other arbitration proceeding involving any of
the parties hereto relating to this Agreement or any other Related Document. The
arbitration tribunal shall not consolidate such arbitrations unless it
determines that (i) there are issues of fact or law common to the two
proceedings so that a consolidated proceeding would be more efficient than
separate proceedings, and (ii) no party hereto would be prejudiced as a result
of such consolidation through undue delay or otherwise. In the event of
different rulings on this question by the arbitration tribunal constituted
hereunder and the tribunal constituted under any other Related Document, the
ruling of the panel constituted hereunder shall control. In the case of a
consolidated proceeding, the arbitrators in that proceeding shall be named in
accordance with the provisions hereof.

                                       22
<PAGE>

          (e)  The arbitrators shall have full authority to order specific
performance as contemplated by Section 3.9.

          (f)  The arbitral award shall be in writing, state the reasons for the
award and be final and binding on the parties. The award may include an award of
costs, including reasonable attorneys' fees and disbursements. The arbitral
award may not provide for punitive damages or any other relief not contemplated
by this Agreement or the other relevant Related Documents.

          (g)  All proceedings in connection with any arbitration, including its
existence, the content of the proceedings and any decision, shall be kept
confidential to the maximum extent possible consistent with the law.

          (h)  Judgment upon the decision may be entered by any court having
jurisdiction thereof or having jurisdiction over the relevant party or its
assets.

          (i)  Except as the arbitration tribunal may otherwise order, each
party to the arbitration will bear fifty percent (50%) of all fees, costs and
expenses of the arbitrators, and notwithstanding any law to the contrary, each
party will bear all the fees, costs and expenses of its own attorneys, experts
and witnesses; provided, however, that in connection with any judicial
proceeding to compel arbitration pursuant to this Agreement or to confirm,
vacate or enforce any award rendered by the arbitration tribunal, the prevailing
party in such a proceeding will be entitled to recover reasonable attorneys'
fees and expenses incurred in connection with such proceeding, in addition to
any other relief to which it may be entitled.

     3.4  Judicial Procedure. Nothing in Section 3.3 shall be construed to
          ------------------
prevent any party from seeking from a court a temporary restraining order or
other temporary or preliminary relief to preserve the status quo pending final
resolution of a dispute, controversy or claim pursuant to Section 3.3, or if
such party makes a good faith determination that a breach of the terms of this
Agreement or any other Related Document by another party is such that a
temporary restraining order or other temporary or preliminary relief is the only
appropriate and adequate remedy at such time.

     3.5  Successors; Assigns. This Agreement and the rights evidenced hereby
          -------------------
will inure to the benefit of and be binding upon the parties hereto and their
successors and permitted assigns, whether so expressed or not. Dentsu may assign
this Agreement only (i) to a "Permitted Dentsu Transferee" in connection with a
"Permitted Intercompany Transfer" (as those terms are defined in the Investment
Agreement) of Registrable Securities pursuant to Section 8.2(b) of the
Investment Agreement or (ii) to a "Permitted Purchaser" in connection with a
"Permitted Third Party Sale" (as those terms are defined

                                       23
<PAGE>

in the Investment Agreement) pursuant to Section 8.2(c) of the investment
Agreement. Any such Permitted Dentsu Transferee or Permitted Purchaser may
further assign its rights under this Agreement in connection with any further
transfer of such Registrable Securities permitted under such provisions. Any
attempt to assign this Agreement in violation of the foregoing restrictions
shall be null and void.

     3.6  Binding Effect. This Agreement will be binding upon and inure to the
          --------------
benefit of the parties hereto and their respective heirs, successors and
permitted assigns.

     3.7  Amendment; Waivers, etc. No amendment, modification or discharge of
          -----------------------
this Agreement, and no waiver hereunder, will be valid or binding unless set
forth in writing and duly executed by the party against whom enforcement of the
amendment, modification, discharge or waiver is sought. Any such waiver will
constitute a waiver only with respect to the specific matter described in such
writing and will in no way impair the rights of the party granting such waiver
in any other respect or at any other time. Neither the waiver by any of the
parties hereto of a breach of or a default under any of the provisions of this
Agreement, nor the failure by any of the parties, on one or more occasions, to
enforce any of the provisions of this Agreement or to exercise any right or
privilege hereunder, will be construed as a waiver of any other breach or
default of a similar nature, or as a waiver of any of such provisions, rights or
privileges hereunder. The rights and remedies herein provided are cumulative and
none is exclusive of any other, or of any rights or remedies that any party may
otherwise have at law or in equity. The rights and remedies of any party based
upon, arising out of or otherwise in respect of any inaccuracy or breach of any
representation, warranty, covenant or agreement or failure to fulfill any
condition will in no way be limited by the fact that the act, omission,
occurrence or other state of facts upon which any claim of any such inaccuracy
or breach is based may also be the subject matter of any other representation,
warranty, covenant or agreement as to which there is no inaccuracy or breach.

     3.8  Nominees for Beneficial Owners. In the event that any Registrable
          ------------------------------
Securities are held by a nominee for the beneficial owner thereof; the
beneficial owner thereof may, at its election and unless notice is otherwise
given to the Company by the record owner, be treated as the holder of such
Registrable Securities for purposes of any request or other action by any holder
or holders of Registrable Securities pursuant to this Agreement. If the
beneficial owner of any Registrable Securities so elects, the Company may
require assurances reasonably satisfactory to it of such owner's beneficial
ownership of such Registrable Securities.

     3.9  No Inconsistent Agreements. The Company will not hereafter enter into
          --------------------------
any agreement with respect to its securities which is inconsistent with the
rights granted to the holders of Registrable Securities by this Agreement.

                                       24
<PAGE>

     3.10  Remedies. Dentsu and any other Stockholders, in addition to being
           --------
entitled to exercise all rights provided herein and granted by law, including
recovery of damages, will be entitled to specific performance of their
respective rights under this Agreement. The Company agrees that monetary damages
would not be adequate compensation for any loss incurred by reason of a breach
by it of the provisions of this Agreement and hereby agrees to waive the defense
in any action for specific performance that a remedy at law would be adequate.

     3.11  Severability. If any provision, including any phrase, sentence,
           ------------
clause, section or subsection, of this Agreement is invalid, inoperative or
unenforceable for any reason, such circumstances will not have the effect of
rendering such provision in question invalid, inoperative or unenforceable in
any other case or circumstance, or of rendering any other provision herein
contained invalid, inoperative, or unenforceable to any extent whatsoever.

     3.12  Headings. The headings contained in this Agreement are for purposes
           --------
of convenience only and shall not affect the meaning or interpretation of this
Agreement.

     3.13  Counterparts. This Agreement may be executed in several counterparts,
           ------------
each of which will be deemed an original and all of which will together
constitute one and the same instrument.

     3.14  Interpretation. Except as otherwise stated, reference to Articles,
           --------------
Sections, Exhibits and Schedules means the Articles, Sections, Exhibits and
Schedules of this Agreement. The words "including" or "includes" or similar
terms used herein will be deemed to be followed by the words "without
limitation," whether or not such additional words are actually set forth herein.

     3.15  Entire Agreement. This Agreement and the other Related Documents
           ----------------
(when executed and delivered) constitute the entire agreement and supersede all
prior agreements and understandings, both written and oral, between the parties
with respect to the subject matter hereof and thereof.

                           [SIGNATURE PAGES FOLLOW]

                                       25
<PAGE>

          IN WITNESS WHEREOF, the undersigned hereby agree to be bound by the
terms and provisions of this Registration Rights Agreement as of the date first
above written.

                                       BDM, INC.
                                       By: /s/ Roger A. Haupt
                                          ----------------------------------
                                          Name:   Roger A. Haupt
                                          Title:  Chief Executive Officer

                                       DENTSU INC.

                                       By: /s/ Yataka Narita
                                          ----------------------------------
                                          Name: Yutaka Narita
                                          Title: President

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