Document:

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                                                                    Exhibit 10.3

                         CORPORATE SERVICES AGREEMENT
                         ----------------------------

     This Agreement is dated as of August 25, 2000, between Arthur D. Little,
Inc., a Massachusetts corporation ("Parent"), and c-quential, Inc., a Delaware
corporation ("Sub").

     WHEREAS, Parent and Sub have entered into a Reorganization Agreement dated
as of August 25, 2000 (the "Reorganization Agreement") pursuant to which Parent,
together with the other members of the Parent Group, is assigning and
transferring to Sub and the other members of the Sub Group certain assets
associated with the Sub Business in exchange for the assumption by Sub and the
other members of the Sub Group of certain liabilities and obligations associated
with such Sub Business and the issuance by Sub to Arthur D. Little,
International, Inc., a Delaware corporation and the parent of Sub (or a designee
thereof as contemplated by the Reorganization Agreement), the Sub Shares on such
terms and conditions as are contained therein; and

     WHEREAS, the Reorganization Agreement provides that Parent and Sub shall
enter into an agreement relating to certain transition services to be provided
by the parties to the other parties and the members of their Group with respect
to the Sub Business after the Effective Date as well as certain other
arrangements, and this Agreement is entered into in order to fulfill that
provision.

     NOW, THEREFORE, in consideration of the foregoing and the other agreements
and covenants contained herein, and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

SECTION 1.  DEFINITIONS.
            -----------

     Section 1.1  Defined Terms.  For purposes of this Agreement, the following
                  -------------
terms shall have the following meanings:

     "Additional Services" shall mean Additional Sub Services and Additional
Parent Services, collectively.

     "Additional Parent Services" shall have the meaning set forth in Section
2.2 hereof.

     "Additional Sub Services" shall have the meaning set forth in Section 2.2
hereof.

     "Ancillary Agreements" shall have the meaning given to such term in the
Reorganization Agreement.

     "Assumed Contracts" shall mean the client contracts in effect on the date
hereof comprising part of the Sub Business which were assigned by Parent and the
members of the Parent Group to Sub or a member of the Sub Group but for which
the consent to such assignment by the third party client, or novation, had not
been obtained as of the Effective Date.

     "Cross-Consulting Services" shall have the meaning set forth in Section 5
hereof.
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     "Cross-Consulting Services Fee" shall mean, with respect to any specific
matter in which a party receives Cross-Consulting Services hereunder, an amount
which is equal to eighty-five percent (85%) of the gross professional service
revenues received by the recipient of such Cross-Consulting Services from a
client in respect of such matter.

     "Effective Date" shall have the meaning given to such term in the
Reorganization Agreement.

     "Group" shall have the meaning given to such term in the Reorganization
Agreement.

     "Independent Directors" with respect to Sub, shall mean a member of the Sub
Board of Directors who is not an employee or officer of Sub or an officer,
employee or director of Parent or a member of the Parent Group, and with respect
to Parent, shall mean a member of the Parent Board of Directors who is not an
employee or officer of Parent or a member of the Parent Group.

     "IPO Closing Date" shall have the meaning given to such term in the
Reorganization Agreement.

     "Parent" shall mean Arthur D. Little, Inc., a Massachusetts corporation.

     "Parent Group" shall have the meaning given to such term in the
Reorganization Agreement.

     "Parent Services" shall mean the services set forth on Schedule A attached
                                                            ----------
hereto from time to time.

     "Provider" shall mean the provider of Services hereunder.

     "Recipient" shall mean the recipient of any Services hereunder.

     "Reorganization Agreement" shall have the meaning set forth in the
recitals.

     "Services" shall mean the Parent Services and Sub Services, collectively.

     "Sub" shall mean c-quential, Inc., a Delaware corporation.

     "Sub Business" shall have the meaning given to such term in the
Reorganization Agreement.

     "Sub Group" shall have the meaning given to such term in the Reorganization
Agreement.

     "Sub Services" shall mean the services set forth on Schedule B attached
                                                         ----------
hereto from time to time.

     "Sub Shares" shall have the meaning given to such term in the
Reorganization Agreement.

     "Term" shall have the meaning set forth in Section 7.1 hereof.

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     Section 1.2  Capitalized Terms.  All other capitalized terms used herein
                  -----------------
and not defined shall have the meanings given to them in the Reorganization
Agreement.

SECTION 2.  SERVICES TO BE PROVIDED.
            -----------------------

     Section 2.1  Scope Of Services.
                  -----------------

          (a) During the Term of this Agreement, upon the written request from
time to time made by Sub, Parent agrees to provide, and agrees to cause the
members of the Parent Group to provide to Sub and the members of the Sub Group,
and Sub agrees to purchase from Parent, on its behalf and on behalf of the other
members of the Sub Group, the Parent Services described in Schedule A attached
hereto, on the terms and conditions set forth herein.  Subject to the provisions
of Section 7.2(b) hereof, Sub may elect to discontinue any Parent Service at any
time in accordance with Section 7.2(a) hereof.

          (b) During the Term of this Agreement, upon the written request from
time to time made by Parent, Sub agrees to provide to Parent and the members of
the Parent Group, and Parent agrees to purchase from Sub, on its behalf and on
behalf of the other members of the Parent Group, the Sub Services described in
Schedule B attached hereto, on the terms and conditions set forth herein.
Subject to the provision of Section 7.2 (b) hereof, Parent may elect to
discontinue any Sub Service at any time in accordance with section 7.2(a)
hereof.

     Section 2.2  Additional Services.
                  -------------------

          (a) From time to time after the Effective Date, Sub may request that
Parent provide additional administrative and support services (the "Additional
Parent Services") to Sub until such time as Sub is able to otherwise contract or
arrange for such services.

          (b) From time to time after the Effective Date, Parent may request
that Sub provide additional administrative and support services (the "Additional
Sub Services") to Parent until such time as Parent is able to otherwise contract
or arrange for such services.

          (c) Upon a request for such Additional Services, Parent and Sub shall
negotiate in good faith as to the scope of such Additional Services and the
terms and conditions under which such Additional Services may be provided by the
Provider; provided that, unless otherwise agreed to by the parties, such
Additional Services will be provided only to the extent, and on a basis
comparable to that, provided by the Provider with respect to its own operations.
Any mutually agreed-upon Additional Services to be provided by a Provider or
another member of the Provider's Group will be added to the applicable service
schedule, and such Additional Services will be deemed to be a "Parent Service"
or "Sub Parent Service," as applicable, and a "Service" for all purposes under
this Agreement unless expressly stated otherwise in this Agreement.

     Section 2.3  Limitations On Services.
                  -----------------------

          (a) Each Service furnished pursuant to this Agreement shall be in all
material respects equivalent to and limited to the same type, quality, quantity
and timeliness of such service that the Provider provides to its own
organization and personnel, and to those of the other

                                       3
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members of the Provider's Group. Each party acknowledges that the other may make
changes from time to time in the manner of performing the Services if such
Provider is making similar changes for itself, any member of its Group, or its
respective business. Each party further acknowledges that such Services will be
performed by those employees of such Provider who perform similar services for
such Provider in the normal course of their employment. Accordingly, except as
otherwise agreed upon by the parties, neither party shall be obligated to make
available any incremental Services to the extent that doing so would
unreasonably interfere with the performance of any employee of such party in
connection with his or her responsibilities to the other, require additional
staff or otherwise cause an unreasonable burden to the other, any member of the
its Group, or their respective business. Each party acknowledges and agrees that
duly authorized agents of the other shall have the right to enter their premises
to the extent reasonably necessary or convenient to provide the Services.

          (b) If a Provider ceases to provide any of the Services to its own
business units or if the level of such Services is reduced for any reason, such
Provider may also cease to provide or reduce the level of such Services provided
to the Recipient under this Agreement.  Each party agrees to provide the other
as promptly as practicable notice of any substantial change in the level of such
Services provided under this Agreement, but in no event shall such Provider
provide less than ninety (90) days advance notice of such date of any Service
discontinuance.

          (c) Neither party shall be required to provide any Service to the
extent the performance of such Service becomes "impracticable" as a result of a
cause or causes outside the reasonable control of such party, including
unfeasible technological requirements, or to the extent the performance of such
Services would require such party to violate any applicable laws, rules or
regulations or would result in the breach of any license, lease or other
applicable contract.

SECTION 3. CHARGES AND PAYMENTS.
           --------------------

          Section 3.1 Charges for Services. Except as specifically set forth on
                      --------------------
Schedule A and Schedule B attached hereto, it is the intention of the parties
----------     ----------
hereto that the charges for Services to be provided pursuant to this Agreement
shall be determined and allocated for each jurisdiction in accordance with
methods consistent with past practices and procedures observed by Parent and Sub
prior to the effective date concerning intercompany services and accounts (i.e.,
based on the proportionate amount of direct employee compensation of the parties
in such jurisdiction), with a view in every case toward providing the Provider
with a reimbursement of fully allocated direct and indirect costs of providing
Services but without any profit to such Provider.

     Charges for each Service shall be determined on a monthly basis.  With
respect to any Services which are provided for a period which is less than a
full calendar month, or where the scope of such services is changed in
accordance with Section 2.3(b) during such period, the charges with respect to
such Service shall be appropriately pro-rated.

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     Section 3.2  Payments For Services.
                  ---------------------

          (a) As soon as practicable, but in no event more than fifteen (15)
days, following the last business day of a calendar month during which this
Agreement is in effect, Provider shall submit to Recipient a written invoice for
the aggregate amount to be charged to Recipient for Services rendered during the
month prior to the just completed month; provided, that each such invoice shall
                                         --------
indicate the amount of charges being assessed for each Service provided and
shall include such documentation as is reasonably necessary to substantiate such
amounts.  Recipient shall pay to Provider the invoiced amount within thirty (30)
days after receipt of an invoice.

          (b) Whenever the provision of any Service pursuant to this Agreement
is terminated for any reason, Provider shall, as promptly as practicable, but in
no event more than fifteen (15) business days, after the termination of such
Service, submit to Recipient a written invoice for the aggregate amount still
owed to Provider with respect to such Service, together with such documentation
as is reasonably necessary to substantiate such amounts. Recipient shall pay to
Provider the invoiced amount within thirty (30) days after receipt of an
invoice.

     Section 3.3  Taxes or Other Governmental Charges.  All federal, state,
                  -----------------------------------
foreign and local taxes, charges, fees and similar liabilities, except taxes
based on Provider's net income, which are levied on either party in connection
with the provision of any Services hereunder, shall be for Recipient's account
and paid directly by Provider or, if required to be paid by Recipient, shall be
added to the next invoice.  Provider shall provide Recipient with evidence of
the payment of any such taxes by Provider with such invoice.  Notwithstanding
the foregoing, to the extent that the provisions of this Section 3.3 are
inconsistent with the provisions of the Tax Allocation Agreement with respect to
the subject matters thereof, the provisions of the Tax Allocation Agreement
shall control.

     Section 3.4  Out-Of-Pocket/Direct Expenses.  To the extent it is not
                  -----------------------------
duplicative of Recipient's payment obligations set forth in Section 3.1 above,
Recipient agrees to pay directly or to reimburse Provider for all reasonable
out-of-pocket and direct expenses incurred by Provider in respect of the
provision of any Services, including, without limitation, all reasonable
expenses for outside accounting, legal, recruiting, consulting, marketing and
other professional services.  All payments or reimbursements to be made under
this Section 3.4 by Recipient shall, except as otherwise provided herein, be
made not later than thirty (30) days following receipt by Recipient of an
invoice therefor.

     Section 3.5  Performance Under Other Agreements.  Notwithstanding anything
                  ----------------------------------
to the contrary contained herein, neither party shall be charged under this
Agreement for any obligations that are specifically required to be performed
under the Reorganization Agreement or any other Ancillary Agreement and any such
other obligations shall be performed and charged for (if applicable) in
accordance with the terms of the Reorganization Agreement or such other
Ancillary Agreement.

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     SECTION 4. INDEPENDENT CONTRACTOR STATUS.
                -----------------------------

     In carrying out the provisions of this Agreement, each party is and shall
be deemed to be for all purposes a separate and independent entity, and no
partnership, joint venture or other arrangement shall be deemed to have been
created hereunder.  Provider shall select its employees and agents, and such
employees and agents shall be under the exclusive and complete supervision and
control of Provider.  Provider hereby acknowledges responsibility for full
payment of wages and other compensation to all employees and agents engaged in
the performance of the Services hereunder.  It is the express intent of this
Agreement that Provider shall render and perform the Services as an independent
contractor in accordance with its own standards, subject to its compliance with
the provisions of this Agreement.

     SECTION 5. AGREEMENTS REGARDING CROSS-CONSULTING.
                -------------------------------------

     In addition to the other Services provided herein, Parent shall make
available to Sub, at the request of Sub, the services of Parent's management
consultants and other professionals, and Sub shall make available to Parent, at
the request of Parent, the services of Sub's management consultants and other
professionals (in either case, "Cross-Consulting Services").  The Cross-
Consulting Services shall be in all material respects limited to the type,
quality, quantity and timeliness of such services that the party providing such
Cross-Consulting Services provides on behalf of itself and the other members of
its Group, and shall be limited as to the general availability of the party (and
its employees and consultants) providing such Cross-Consulting Services and as
would not otherwise conflict with the interests of such providing party.  The
recipient of such Cross-Consulting Services shall pay the provider of such Cross
Consulting Services, within thirty (30) days of receipt of payment therefor from
the client in respect of the performance of such Cross-Consulting Services, the
Cross-Consulting Services Fee.  Notwithstanding the foregoing, the provisions of
this Section 5 shall in no way limit the obligations and rights of the parties
in respect of the Assumed Contracts, including, without limitation, the
obligation of Parent or the applicable Parent Group Member to forward to Sub one
hundred percent (100%) of the fees received by Parent or such Parent Group
Member under an Assumed Contact for services performed by Sub or a Sub Group
Member from and after the Effective Date, as provided in Section 7.3.2 of the
Reorganization Agreement.

     SECTION 6. LIMITED LIABILITY; INDEMNIFICATION.
                ----------------------------------

     Section 6.1  Limited Liability.  Neither party shall be liable to the other
party for any special, indirect, incidental, exemplary or consequential damages,
or for loss of profits or revenues, whether arising in contract, tort (including
negligence), under any warranty or otherwise, arising out of its performance or
non-performance under this Agreement or the termination of this Agreement, even
if Parent or Sub, as the case may be, has been advised of the possibilities of
such damages.

     Section 6.2  Disclaimer of Warranty.  NEITHER PARENT NOR SUB MAKES ANY
REPRESENTATIONS OR WARRANTIES WHATSOEVER, EXPRESS OR IMPLIED, INCLUDING, WITHOUT
LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, WITH RESPECT TO THE SERVICES TO BE PROVIDED BY IT UNDER THIS AGREEMENT.
In the event

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the performance or non-performance of any Service to be provided hereunder
results in direct damages to Recipient, Provider shall be liable only to the
extent such performance or non-performance was the result of Provider's gross
negligence or willful misconduct, and Provider's maximum, cumulative and sole
liability to Recipient for such direct damages shall be limited to an amount up
to the aggregate amount actually paid by the Recipient to Provider for such
Service up to the date of the performance or non-performance giving rise to the
direct damages. Recipient acknowledges that such payment constitutes fair and
reasonable compensation for any direct damages. Notice of any claim for direct
damages must be made within one (1) year of the date of the event giving rise to
such claim and such claim must specify the damage amount claimed and a
description of the Service and the act or omission giving rise to the claim.

     Section 6.3 Indemnification.  Recipient, on its behalf and on behalf of the
other members of its Group, agrees to indemnify and hold harmless Provider and
the other members of its Group, and each of their respective directors,
officers, employees, agents, representatives, shareholders, transferees,
successors and assigns against any claims, actions, demands, judgments, losses,
costs, expenses, damages and liabilities (including reasonable attorneys' fees
and disbursements) related to or arising out of or connected with such Services,
regardless of the legal theory asserted.  The foregoing indemnity applies to
claims, actions and demands for which Provider may be, or may be claimed to be,
partially or solely liable; provided that the foregoing indemnity will not apply
with respect to any claim for direct damages asserted by Recipient against
Provider as provided in Section 6.2 above.

     SECTION 7. TERM OF AGREEMENT

     Section 7.1  Term.  This Agreement shall become effective on the Effective
                  ----
Date and shall remain in effect until the earlier of (a) the discontinuance or
termination of all Services to be provided hereunder in accordance with the
Section 7.2 of this Agreement and (b) the third anniversary of the date of the
IPO Closing Date (such period, the "Term"), unless earlier terminated by the
mutual agreement of the parties.

     Section 7.2  Discontinuation or Termination of Services.
                  ------------------------------------------
          (a) A Recipient may discontinue its use of any such Service (i) upon
written notice given to Provider of such Service not less than one hundred
twenty (120) days prior to the proposed date of Service discontinuance or (ii)
immediately upon the bankruptcy or insolvency of Provider.  In addition, upon
the occurrence and continuance of a breach or default by either party in
connection with the provision of, or payment for, any Service hereunder for a
period of ten (10) days after written notice thereof has been given to the
defaulting party, the non-defaulting party may terminate such Service and shall
have no further obligation to the other party with respect thereto.  Upon
termination of this Agreement or any Service to be provided hereunder, all
unpaid fees with respect to Services provided prior to the date of termination
of this Agreement or such Services, as applicable, shall be due and payable
within thirty (30) days of the date of termination.  Notwithstanding any
termination of this Agreement or any Services to be provided hereunder, the
provisions of Sections 3, 5, 6 and 8 shall remain in effect indefinitely or
until such time as the obligations of both parties hereunder shall have been
fully discharged.

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          (b) Once a Service is discontinued or terminated in accordance with
the terms of this Agreement, Provider shall, upon the request of Recipient, not
again be obligated to later reinstate such Service; provided, however, that to
                                                    --------  -------
the extent Provider is thereafter requested to provide any discontinued or
terminated Service to Recipient, including any transition-related assistance
necessary for any other organization to perform the discontinued or terminated
Service, and Provider consents to provide such Service, the obligation of
Provider to provide such service shall be subject to the limitations set forth
in Section 2.3 hereof, and Provider shall be entitled to compensation reflecting
the actual costs incurred by Provider with respect thereto consistent with the
general payment terms contained herein.

     SECTION 8.  MISCELLANEOUS.
                 -------------

     Section 8.1  Force Majeure.  Anything contained in this Agreement to the
                  -------------
contrary notwithstanding, Provider's performance of its duties and obligations
hereunder shall be excused to the extent that failure of performance is caused
by any act of force majeure, including, but not limited, to acts of God or the
public enemy, acts of the government in its sovereign capacity, fires, floods,
epidemics, quarantine restrictions, freight embargoes, strikes, unusually severe
weather, sabotage or any other or similar event or casualty beyond the
reasonable control of Provider; provided, however, that Recipient shall not be
                                -----------------
obligated to pay Provider for such Services to the extent that Provider is
unable to perform as a result of a force majeure condition.  Provider shall
promptly notify Recipient of such events and make every reasonable effort to
restore such Services.  Notwithstanding the foregoing, Recipient shall be
responsible for making its own alternative arrangements with respect to
interrupted Services during the pendency of any force majeure condition.

     Section 8.2 Access to Information; Confidentiality. The provisions of
                 --------------------------------------
Section 8 of the Reorganization Agreement relating to the access to information
and confidentiality shall apply with respect to any information obtained or
learned by either party from the other party in connection with the parties'
performance of their respective obligations hereunder. This Section shall
survive the termination of this Agreement.

     Section 8.3 Dispute Resolution. All disputes, controversies or claims
                 ------------------
between Parent and Sub arising out of or relating to this Agreement, including,
without limitation, the breach, interpretation or validity of any term or
condition hereof, shall be resolved in accordance with the provisions of the
Reorganization Agreement relating to dispute resolution.

     Section 8.4 Amendment and Waiver. The provisions of this Agreement,
                 --------------------
including, without limitation, this Section, may not be waived and this
Agreement shall not be amended or modified except in accordance with this
Section. The provisions of this Agreement may be waived only by the written
consent of a majority of the Independent Directors of the party which is the
beneficiary of the particular provision being waived. No failure or delay by any
party in exercising any right or remedy hereunder shall operate as a waiver
thereof, and a waiver of a particular right or remedy on one occasion shall not
be deemed a waiver of any other right or remedy or a waiver on any subsequent
occasion. The provisions of this Agreement may be amended, modified or
supplemented only by the written consent of a majority of the Independent
Directors of each of the parties.

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     Section 8.5 Notices. Any notice to any party hereto given pursuant to this
                 -------
Agreement shall be in writing and shall be given by the means, and to the
addresses, set forth in the "Notices" section of the Reorganization Agreement.

     Section 8.6  Successors and Assigns. This Agreement may not be assigned by
                  ----------------------
either party without the prior written consent of the other party, and any
attempt to assign any rights or obligations hereunder without such consent shall
be void; provided, however, that either party may assign or transfer this
         -----------------
Agreement without the consent of the non-assigning party to an entity that
succeeds to all or substantially all of the business, assets or capital stock of
such party. This Agreement shall inure to the benefit of, and be binding upon
and enforceable against the respective successors and assigns of the parties
hereto.

     Section 8.7 Entire Agreement; Parties in Interest. This Agreement
                 -------------------------------------
(including the Schedules hereto and the applicable provisions of the
Reorganization Agreement and other Ancillary Agreements) comprises the entire
agreement between the parties hereto as to the subject matter hereof and
supersedes all prior agreements and understandings between them relating thereto
and, except as provided in Section 6.3 above, is not intended to confer upon any
person other than the parties hereto (including their successors and permitted
assigns) any rights or remedies hereunder.

     Section 8.8 Severability. If any term or provision of this Agreement or the
                 ------------
application thereof to any person or circumstance shall to any extent be invalid
or unenforceable, the remainder of this Agreement or the application of such
terms or provisions to persons or circumstances other than those as to which it
is invalid or unenforceable shall not be affected thereby and each term and
provision of this Agreement shall be valid and enforced to the fullest extent
permitted by law.

     Section 8.9 Captions. Captions and headings are supplied herein for
                 --------
convenience only and shall not be deemed a part of this Agreement for any
purpose.

     Section 8.10 Governing Law. This Agreement shall be governed by and
                  -------------
construed in accordance with the internal substantive laws of the Commonwealth
of Massachusetts, without giving effect to the principles of conflicts of laws
thereof.

     Section 8.11  Counterparts.  This Agreement may be executed in several
                   ------------
counterparts, and all counterparts so executed shall constitute one agreement,
binding upon the parties hereto, notwithstanding that the parties are not
signatory to the same counterpart.

                         [Signature page follows next]

                                       9
<PAGE>

     IN WITNESS WHEREOF, Parent and Sub have caused this Agreement to be duly
executed by their authorized representatives as an agreement under seal as of
the day and year first written above.

                                    PARENT:

                                    ARTHUR D. LITTLE, INC., a
                                    Massachusetts corporation

                                    By:/s/ Mark A. Brodsky
                                       ---------------------------
                                       Name:  Mark A. Brodsky
                                       Title: Exec. Vice President

                                    SUB:

                                    C-QUENTIAL, INC., a Delaware
                                    corporation

                                    By:/s/ Lorenzo C. Lamadrid
                                       ---------------------------
                                       Name:  Lorenzo C. Lamadrid
                                       Title: Director

                                       10
<PAGE>

                                  SCHEDULE A

                                PARENT SERVICES

1.  Payroll.
    -------
    Services to include preparation of payroll checks for Sub employees,
    maintenance of Sub employee payroll records, and any other ancillary
    payroll functions required.

2.  Accounting and Treasury.
    -----------------------

    Services to include assisting Sub's accounting department and auditors with
    general and specific accounting services, including preparation of
    financial and regulatory statements, filings with the Securities and
    Exchange Commission, such as Forms 10-K, 10-Q and 8-K, proxy statements and
    annual reports to stockholders, internal audit support services, and review
    of compliance with financial and accounting procedures.  Treasury services
    shall include assisting Sub in establishing bank accounts, managing cash
    accounts and currency exchange matters.

3.  Corporate Records.
    -----------------

    Services to include maintenance of corporate records and minute books,
    coordination with stock transfer agent, administration of option plans and
    issuances and stock repurchase programs.

4.  Tax Preparation.
    ---------------

    Services include assisting Sub in the preparation and filing of all tax
    returns, including federal, state and local corporate income taxes, state
    franchise taxes, local property taxes, state and local withholding taxes,
    all foreign taxes, value added tax returns, preparing for meetings with tax
    authorities and audits, and tax research and planning.

5.  Human Resources and Benefits Administration.
    -------------------------------------------

    Services include arranging and procuring general liability, property and
    casualty and other business insurance coverage, workers' compensation
    coverage, assistance with human resources functions, including maintaining
    personnel records, compliance with applicable laws and regulations
    regarding employees and labor in general, adoption of employee handbook and
    procedures for recruiting, hiring, promoting and terminating employees.

6.  Training.
    --------

    Services to include the provision and coordination of professional training
    for Sub's employees and consultants, including internal and external
    seminars and educational conferences and retreats, including, without
    limitation, training through the engagement of APDI; provided, however, the
    cost of Sub of such APDI services shall equal the cost Parent charges to
    the other members of the Parent Group.

                                       11
<PAGE>

7.  Risk Management.
    ---------------
    Services to include assisting Sub with minimizing exposure to liabilities
    and to maintain contacts with insurance brokers and carriers.

8.  Legal Services.
    --------------

    Services to include access to Parent's in-house counsel staff for legal
    advice and assistance in general corporate affairs and business
    transactions, compliance with regulatory matters (including, without
    limitation, matters in respect of federal and state securities laws),
    advice and services with respect to intellectual property matters, and
    coordinating contact and use of outside counsel.

9.  Information and Technology and other Administrative Support.
    -----------------------------------------------------------

    Services to include data processing and telecommunications assistance,
    secretarial and administrative assistance and support, graphics,
    photocopying and general office services.

10. Personal Property and Vehicles.
    ------------------------------

    Services to include the use of telecommunications equipment, including
    voice and data transmission equipment, photocopying equipment, computer
    hardware and peripherals and miscellaneous office furniture, including
    desks, chairs, filing cabinets and storage units, as well as the use of
    motor vehicles.

11. Miscellaneous.
    -------------
    Such other services as may be reasonably necessary from time to time in the
    operation of the Sub Business during the Term.

                                       12
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                                  SCHEDULE B
                                  ----------

                                 SUB SERVICES

1.   Payroll.
     -------

     Services to include preparation of payroll checks for Parent employees,
     maintenance of Parent employee payroll records, and any other ancillary
     payroll functions required.

2.   Accounting and Treasury.
     -----------------------

     Services to include assisting Parent's accounting department and auditors
     with general and specific accounting services, including, as applicable,
     preparation of financial and regulatory statements, filings with the
     Securities and Exchange Commission, such as Forms 10-K, 10-Q and 8-K, proxy
     statements and annual reports to stockholders, internal audit support
     services, and review of compliance with financial and accounting
     procedures.  Treasury services shall include assisting Parent in
     establishing bank accounts, managing cash accounts and currency exchange
     matters.

3.   Corporate Records.
     -----------------

     Services to include maintenance of corporate records and minute books,
     coordination with stock transfer agent, as applicable, administration of
     option plans and issuances and stock repurchase programs.

4.   Tax Preparation.
     ---------------

     Services include assisting Parent in the preparation and filing of all tax
     returns, including federal, state and local corporate income taxes, state
     franchise taxes, local property taxes, state and local withholding taxes,
     all foreign taxes, value added tax returns, preparing for meetings with tax
     authorities and audits, and tax research and planning.

5.   Human Resources and Benefits Administration.
     -------------------------------------------

     Services include arranging and procuring general liability, property and
     casualty and other business insurance coverage, workers' compensation
     coverage, assistance with human resources functions, including maintaining
     personnel records, compliance with applicable laws and regulations
     regarding employees and labor in general, adoption of employee handbook and
     procedures for recruiting, hiring, promoting and terminating employees.

6.   Training.
     --------

     Services to include the provision and coordination of professional training
     for Parent's employees and consultants, including internal and external
     seminars and educational conferences and retreats.

                                       13
<PAGE>

7.   Risk Management.
     ---------------

     Services to include assisting Parent with minimizing exposure to
     liabilities and to maintain contacts with insurance brokers and carriers.

8.   Legal Services.
     --------------

     Services to include access to Sub's in-house counsel staff for legal advice
     and assistance in general corporate affairs and business transactions,
     compliance with regulatory matters (including, without limitation, matters
     in respect of federal and state securities laws), advice and services with
     respect to intellectual property matters, and coordinating contact and use
     of outside counsel.

9.   Information and Technology and other Administrative Support.
     -----------------------------------------------------------

     Services to include data processing and telecommunications assistance,
     secretarial and administrative assistance and support, graphics,
     photocopying and general office services.

10.  Personal Property and Vehicles.
     ------------------------------

     Services to include the use of telecommunications equipment, including
     voice and data transmission equipment, photocopying equipment, computer
     hardware and peripherals and miscellaneous office furniture, including
     desks, chairs, filing cabinets and storage units, as well as the use of
     motor vehicles.

11.  Miscellaneous.
     -------------
     Such other services as may be reasonably necessary from time to time in the
     operation of the Parent's business during the Term.

                                       14<PAGE>

                                                                    Exhibit 10.4

                          USE AND OCCUPANCY AGREEMENT
                          ---------------------------

     This Agreement is dated as of August 25, 2000, between Arthur D. Little,
Inc., a Massachusetts corporation ("Parent"), and c-quential Inc., a Delaware
corporation ("Sub").

     WHEREAS, Parent and Sub have entered into a Reorganization Agreement dated
as of August 25, 2000 (the "Reorganization Agreement") pursuant to which Parent,
together with the other members of the Parent Group, is assigning and
transferring to Sub and the other members of the Sub Group certain assets
associated with the Sub Business in exchange for the assumption by Sub and the
other members of the Sub Group of certain liabilities and obligations associated
with such Sub Business and the issuance by Sub to Arthur D. Little
International, Inc., a Delaware corporation and the parent of Sub (or a designee
thereof as contemplated by the Reorganization Agreement), the Sub Shares on such
terms and conditions as are contained therein;

     WHEREAS, Parent and certain members of the Parent Group currently lease the
Leased Premises; and

     WHEREAS, the Reorganization Agreement provides that Parent and Sub shall
enter into an agreement relating to the continued use and occupancy of a portion
of the Leased Premises by Sub and/or Parent for a transition period following
the Effective Date, and this Agreement is entered into in order to fulfill that
provision.

     NOW, THEREFORE, in consideration of the foregoing and the other agreements
and covenants contained herein, and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

SECTION 1.  DEFINITIONS.
            -----------

     Section 1.1  Defined Terms.  For purposes of this Agreement, the following
                  -------------
terms shall have the following meanings:

     "Ancillary Agreements" shall have the meaning given to such term in the
Reorganization Agreement.

     "Common Areas" shall have the meaning set forth in Section 2.1 hereof.

     "Effective Date" shall have the meaning given to such term in the
Reorganization Agreement.

     "Group" shall have the meaning given to such term in the Reorganization
Agreement.

     "Independent Director" with respect to Sub, shall mean a member of the Sub
Board of Directors who is not an employee or officer of Sub or an officer,
employee or director of Parent or a member of the Parent Group, and with respect
to Parent, shall mean a member of
<PAGE>

the Parent Board of Directors who is not an employee or officer of Parent or a
member of the Parent Group.

     "Leased Premises" shall mean the premises leased by Parent and the other
members of the Parent Group and Sub and the other members of the Sub Group, as
set forth in Schedule A attached hereto.
             ----------

     "Licensee" shall mean Parent or Sub, as applicable, as the licensee under a
Space License hereunder.

     "License Fee" shall have the meaning set forth in Section 3 hereof.

     "Licensor" shall mean Parent or Sub, as applicable, as the Licensor under a
Space License hereunder.

     "Master Lease" shall mean, with respect to any Leased Premise, the lease
agreement between Parent or the applicable member of the Parent Group, and or
after giving effect to certain of the transactions contemplated by the
Reorganization Agreement, Sub or the applicable member of the Sub Group, as
applicable, and the landlord thereunder.

     "Parent" shall mean Arthur D. Little, Inc., a Massachusetts corporation.

     "Parent Group" shall have the meaning given to such term in the
Reorganization Agreement.

     "Reorganization Agreement" shall have the meaning set forth in the
recitals.

     "Related Services" shall have the meaning set forth in Section 2.2 hereof.

     "Space" shall have the meaning set forth in Section 2.1 hereof.

     "Space License" shall have the meaning set forth in Section 2.1 hereof.

     "Sub" shall mean c-quential, Inc., a Delaware corporation.

     "Sub Business" shall have the meaning given to such term in the
Reorganization Agreement.

     "Sub Group" shall have the meaning given to such term in the Reorganization
Agreement.

     "Sub Shares" shall have the meaning given to such term in the
Reorganization Agreement.

     "Term" shall have the meaning set forth in Section 5.1 hereof.

                                       2
<PAGE>

     Section 1.2  Capitalized Terms.  All other capitalized terms used herein
and not defined shall have the meanings given to them in the Reorganization
Agreement.

SECTION 2.  LICENSES.
            --------

     Section 2.1  License of Space.
                  ----------------

          (a) Parent hereby grants, and agrees to cause the applicable members
     of the Parent Group to grant, Sub and the applicable members of the Sub
     Group a license (the "Parent Space License") to use and occupy the office
     space at the Leased Premises as indicated on Schedule A-1 attached hereto
                                                  ------------
     (each Master Lease location individually, and collectively, the "Space"),
     including the right to utilize all rest rooms, cafeteria and fitness center
     facilities, outdoor facilities generally available to employees of Parent
     and/or the applicable member of the Parent Group, sidewalks, driveways,
     parking lots and any other common areas available to Parent or another
     member of the Parent Group under the applicable Master Lease (as the same
     is available, the "Common Areas"), subject in all cases to the provisions
     of this Agreement. In order to effect the Parent Space License granted
     hereunder, each of Sub and Parent agrees to cause the applicable member of
     its Group to execute and deliver herewith an executed counterpart of
     Schedule B hereto. Sub hereby acknowledges and agrees that the Space is
     ----------
     being licensed hereunder "AS IS," and that neither Parent nor any Parent
     Group member makes any warranty, covenant or representation that the Space
     shall be other than in its present condition. The parties expressly
     acknowledge that this Agreement does not constitute a demise by Parent or a
     Parent Group member of any real property interest in the Leased Premises
     (including, without limitation, the Space) and, consequently, neither Sub
     nor any Sub Group member shall be entitled to any rights or remedies to
     which a subtenant may be entitled at law or in equity, unless such party
     shall have been expressly afforded such rights and remedies pursuant to the
     provisions of this Agreement. This Agreement is subject and subordinate to
     the Master Leases and, consequently, if any Master Lease expires or
     terminates for any reason whatsoever, the Space License with respect to the
     Leased Premises thereunder shall expire.

          (b) Sub hereby grants, and agrees to cause the applicable members of
     the Sub Group to grant, Parent and the applicable members of the Parent
     Group a license (the "Sub Space License," together with the Parent Space
     License, the "Space Licenses") to use and occupy the Space at the Leased
     Premises as indicated on Schedule A-2 attached hereto as and when
                              ------------
     reasonably requested by Parent, including the right to utilize all Common
     Areas generally available to employees of Sub and/or the applicable member
     of the Sub Group under the applicable Master Lease, subject in all cases to
     the provisions of this Agreement. In order to effect the Sub Space License
     granted hereunder after the request by Parent to use and occupy particular
     Leased Premises is made, if any, each of Sub and Parent agrees to cause the
     applicable member of its Group to execute and deliver herewith an executed
     counterpart of Schedule B hereto. Parent hereby acknowledges and agrees
                    ----------
     that the Sub Space is being licensed hereunder "AS IS," and that neither
     Sub nor any Sub Group member makes any warranty, covenant or representation
     that the Space shall be other than in its present condition. The parties
     expressly acknowledge that this

                                       3
<PAGE>

     Agreement does not constitute a demise by Sub or a Sub Group member of any
     real property interest in the Leased Premises (including, without
     limitation, the Space) and, consequently, neither Parent nor any Parent
     Group member shall be entitled to any rights or remedies to which a
     subtenant may be entitled at law or in equity, unless such party shall have
     been expressly afforded such rights and remedies pursuant to the provisions
     of this Agreement. This Agreement is subject and subordinate to the Master
     Leases and, consequently, if any Master Lease expires or terminates for any
     reason whatsoever, the Sub Space License with respect to the Leased
     Premises thereunder shall expire.

     Section 2.2  Related Services.  During the term of this Agreement, Licensor
                  ----------------
will provide, or cause to be provided by a member of its Group, the following
services (the "Related Services") related to Licensee's use and occupancy of the
Space:

          (a) all utilities consumed on or in connection with the use and
     occupancy of the Space, including but not limited to water, sewer, gas,
     electricity, heat, ventilation and air conditioning;

          (b) maintenance services for the applicable building (e.g.,
     janitorial/custodial, repairs, elevators, plants) and for the grounds on
     the Leased Premises (e.g., landscaping, snow removal, paving) with respect
     to the Space (including all rest rooms located in the building and all
     parking lots and walkways, sidewalks, and driveways providing for access to
     and from the Space);

          (c) receipt and distribution of Licensee's incoming and outgoing mail
     and other shipments and deliveries; and

          (d) reception and security services.

Licensor will provide, or cause a member of the its Group to provide, each of
the Related Services with respect to the Space and Licensee's operations
conducted thereat to the extent required to accommodate Licensee's reasonable
needs, and in the same manner of quality, quantity and timeliness as such
services are provided to the rest of the building and the Leased Premises and
the operations conducted therein, but in no event in a materially lesser manner
than such services were provided prior to the date hereof.

     Section 2.3  Consents.  Parent and Sub shall cooperate and use reasonable
                  --------
efforts to obtain, and cause the members of their respective Group to obtain,
any required consents of Landlords or other Persons with respect to the Space
Licenses granted hereunder.  All fees and expenses incurred by the parties
(including the reasonable fees and expenses of counsel to the parties) in
connection with obtaining third party consents shall be paid by Sub.

SECTION 3.  LICENSE FEE.  Licensee agrees to pay to Licensor a monthly
            -----------
license fee (the "License Fee") for the use and occupancy of the Space under a
Space License, including the Common Areas and the provision of the Related
Services, such amount as set forth on any Schedule B attached hereto, in each
                                          ----------
case payable on the first business day of each calendar month during the term of

                                       4
<PAGE>

the applicable Space License. Licensee shall pay the License Fee with respect to
a particular Leased Premise until the termination of the Space License for such
Leased Premise. The parties acknowledge and agree that the License Fee with
respect to the Space shall be based on the applicable rent for such Leased
Premises and Licensee's proportionate use and occupancy of Space at such Leased
Premises shall include amounts in respect of property taxes related to the Space
and Common Areas, and shall be computed in accordance with the parties' past
practices in respect of similar facilities fees relating to the Leased Premises
prior to the Effective Date. With respect to any period of use or occupancy of
the Space, which is less than a full calendar month, the License Fee with
respect to such period shall be appropriately pro-rated.

SECTION 4.  LIMITATION OF LIABILITY; INDEMNIFICATION.
            ----------------------------------------

     IN NO EVENT SHALL ANY MEMBER OF THE PARENT GROUP OR SUB GROUP BE LIABLE TO
ANY OTHER MEMBER OF THE PARENT GROUP OR SUB GROUP FOR ANY SPECIAL,
CONSEQUENTIAL, INDIRECT, INCIDENTAL OR PUNITIVE DAMAGES OR LOST PROFITS, HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY (INCLUDING NEGLIGENCE) ARISING IN ANY WAY
OF THIS AGREEMENT, WHETHER OR NOT SUCH PARTY HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES.  Notwithstanding the foregoing, each of Parent and Sub shall
indemnify and hold harmless the other against any claims, liability, loss,
damage or expense (including reasonable attorneys' fees and disbursements)
incurred or sustained by such other party arising out of any personal injury or
property damage caused by the fault of the invitees, agents, servants or
employees of such party in connection with their activities under or related to
this Agreement.

SECTION 5.  TERM OF AGREEMENT.
            -----------------

     Section 5.1  Term.  This Agreement shall become effective on the Effective
                  ----
Date and shall remain in effect until the latest date of expiration of any Space
License granted hereunder, unless earlier terminated in accordance with Section
5.2 below.  The term of any Space License with respect to a particular Leased
Premise shall be identical to the term of the Master Lease for such Leased
Premise, including any extensions and renewals thereof, unless earlier
terminated in accordance with Section 5.2 below.

     Section 5.2  Termination.  This Agreement may be terminated, either in
                  -----------
whole or with respect to specific portions of the Space Licenses granted
hereunder, by the non-defaulting party, upon the occurrence and continuance of a
default by either party hereunder, including the defaulting party's failure to
keep, observe or perform any covenant, agreement, term or provision of this
Agreement, for a period of thirty (30) days after written notice thereof has
been given to the defaulting party.  In the event of any termination of this
Agreement or of any portion of the Space Licenses granted hereunder, neither
party shall have any further obligation to the other party hereunder or for that
portion of the Space Licenses (other than for any License Fees or other monies
owed in respect of such Space License).  Notwithstanding any termination of this
Agreement, the provisions of Sections 4 and 7 shall

                                       5
<PAGE>

remain in effect indefinitely or until such time as the obligations of both
parties hereunder shall have been fully discharged.

SECTION 6. ADDITIONAL COVENANTS.
           --------------------

     Section 6.1  No Alterations; Surrender.  Licensee may not make any physical
                  -------------------------
alterations to the Space (including, without limitation, structural alterations,
construction or removal of interior walls, painting or other decoration) without
the prior written consent of Licensor, which consent shall not be unreasonably
withheld or delayed and the consent of the landlord under the applicable Master
Lease, if required.  Licensee shall surrender the Space upon termination of this
Agreement (or the applicable Space License) in the same condition as it now
exists, except for normal wear and tear, damage caused by fire or other
casualty, and other alterations made with Licensor's approval (or the approval
of the landlord under the applicable Master Lease, if required).

     Section 6.2  Access to Space.  Licensor, its agents and representatives
                  ---------------
shall have the right to enter the Space without prior notice to inspect the
same, to exercise such rights as Licensor may have under any Master Lease or
this Agreement with respect to such Space, to permit the landlord, its agents or
representatives to access such space to the extent permitted under the Master
Lease, or for any other purpose which Licensor may reasonably determine to be
necessary or desirable; provided, however, that Licensor shall not unreasonably
                        -----------------
interfere with Licensee's use and enjoyment of the Space.  Licensee shall not be
entitled to any abatement of any portion of the License Fee by reason of the
exercise of any such right of entry.

     Section 6.3  Fire, Casualty and Eminent Domain.  In the event of a fire,
                  ---------------------------------
casualty or taking that affects the Space to the extent that Licensee is unable
to operate its business therein without unreasonable interference or additional
expense, but that does not result in termination of the Lease, Licensee may
elect to terminate this Agreement by giving written notice to Licensor within
fifteen (15) days of said event.

     Section 6.4  Performance of Master Lease; Property.  Licensee agrees, and
                  -------------------------------------
shall cause each of the members of its Group, to use its best efforts to observe
and perform the tenant's obligations contained in the applicable Master Lease
during the period of occupancy thereunder.

SECTION 7. MISCELLANEOUS.
           -------------

     Section 7.1  Access to Information; Confidentiality.  The provisions of the
                  --------------------------------------
Reorganization Agreement relating to the access to information and
confidentiality shall apply with respect to any information obtained or learned
by either party from the other party in connection with the parties' performance
of their respective obligations hereunder.  This Section shall survive the
termination of this Agreement.

     Section 7.2  Dispute Resolution. All disputes, controversies or claims
                  ------------------
between Parent and Sub arising out of or relating to this Agreement, including
without limitation the breach,

                                       6
<PAGE>

interpretation or validity of any term or condition hereof, shall be resolved in
accordance with the provisions of the Reorganization Agreement relating to
dispute resolution.

     Section 7.3  Amendment and Waiver. The provisions of this Agreement,
                  --------------------
including, without limitation, this Section, may not be waived and this
Agreement shall not be amended or modified except in accordance with this
Section.  The provisions of this Agreement may be waived only by the written
consent of a majority of the Independent Directors of the party which is the
beneficiary of the particular provision being waived.  No failure or delay by
any party in exercising any right or remedy hereunder shall operate as a waiver
thereof, and a waiver of a particular right or remedy on one occasion shall not
be deemed a waiver of any other right or remedy or a waiver on any subsequent
occasion.  The provisions of this Agreement may be amended, modified or
supplemented only by the written consent of a majority of the Independent
Directors of each of the parties.

     Section 7.4  Notices.  Any notice to any party hereto given pursuant to
                  -------
this Agreement shall be in writing and shall be given by the means, and to the
addresses, set forth in the "Notices" section of the Reorganization Agreement.

     Section 7.5  Successors and Assigns.  This Agreement may not be assigned by
                  ----------------------
either party without the prior written consent of the other party, and any
attempt to assign any rights or obligations hereunder without such consent shall
be void provided, however, that either party may assign or transfer this
        -----------------
Agreement without the consent of the non-assigning party to an entity that
succeeds to all or substantially all of the business, assets or capital stock of
such party. This Agreement shall inure to the benefit of, and be binding upon
and enforceable against the respective successors and assigns of the parties
hereto.

     Section 7.6  Entire Agreement; Parties in Interest.  This Agreement, the
                  -------------------------------------
Schedules hereto, the Reorganization Agreement and any applicable provision of
the Ancillary Agreements comprise the entire agreement between the parties
hereto as to the subject matter hereof and supersedes all prior agreements and
understandings between them relating thereto and is not intended to confer upon
any person other than the parties hereto (including their successors and
permitted assigns) any rights or remedies hereunder.

     Section 7.7  Severability.  If any term or provision of this Agreement or
                  ------------
the application thereof to any person or circumstance shall to any extent be
invalid or unenforceable, the remainder of this Agreement or the application of
such terms or provisions to persons or circumstances other than those as to
which it is invalid or unenforceable shall not be affected thereby and each term
and provision of this Agreement shall be valid and enforced to the fullest
extent permitted by law.

     Section 7.8  Captions. Captions and headings are supplied herein for
                  --------
convenience only and shall not be deemed a part of this Agreement for any
purpose.

                                       7
<PAGE>

     Section 7.9  Governing Law.  This Agreement shall be governed by and
                  -------------
construed in accordance with the internal substantive laws of the Commonwealth
of Massachusetts, without giving effect to the principles of conflicts of laws
thereof.

     Section 7.10  Counterparts.  This Agreement may be executed in several
                   ------------
counterparts, and all counterparts so executed shall constitute one agreement,
binding upon the parties hereto, notwithstanding that the parties are not
signatory to the same counterpart.

                         [Signature page follows next]

                                       8
<PAGE>

     IN WITNESS WHEREOF, Parent and Sub have caused this Agreement to be duly
executed by their authorized representatives as an agreement under seal as of
the date first written above.

                                    PARENT:

                                    ARTHUR D. LITTLE, INC., a
                                    Massachusetts corporation

                                    By:/s/ Mark A. Brodsky
                                       --------------------------------
                                       Name:  Mark A. Brodsky
                                       Title: Exec. Vice President

                                    SUB:

                                    C-QUENTIAL, INC., a Delaware
                                    corporation

                                    By:/s/ Lorenzo C. Lamadrid
                                       --------------------------------
                                       Name:  Lorenzo C. Lamadrid
                                       Title: Director

                                       9
<PAGE>

                                 SCHEDULE A-1

                            PARENT LEASED PREMISES

[ADL TO PROVIDE]

                                       10
<PAGE>

                                 SCHEDULE A-2

                              SUB LEASED PREMISES

                               [ADL TO PROVIDE]

                                       11
<PAGE>

                                  SCHEDULE B

MASTER LEASE LOCATION:

See attached worksheet for breakdown of License Fee.

Each of the undersigned hereby acknowledges and agrees to be bound by the terms
and conditions of the Use and Occupancy Agreement to which this Schedule B is
attached, the terms of which are incorporated herein.

[MEMBER OF PARENT GROUP]            [MEMBER OF SUB GROUP]

By:                                 By:
   ---------------------               --------------------

                                       12

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