Document:

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                                                                   Exhibit 10.10

                         PLEDGE AND SECURITY AGREEMENT
                         -----------------------------
                         (Renaissance Worldwide, Inc.)

     THIS PLEDGE AND SECURITY AGREEMENT (this "Agreement"), dated as of July 15,
                                               ---------
1999, is between RENAISSANCE WORLDWIDE, INC., a corporation duly organized and
validly existing under the laws of the Commonwealth of Massachusetts ("Debtor"),
                                                                       ------
and BANK OF AMERICA, N.A. (formerly NationsBank, N.A.), as Administrative Agent
for the Lenders referred to below (in such capacity, the "Secured Party").
                                                          -------------

                               R E C I T A L S:
                               - - - - - - - -

     A.   Debtor has entered into that certain Amended and Restated Credit
Agreement dated as of July 15, 1999, with the lenders party thereto (each
individually a "Lender" and collectively, the "Lenders"), Secured Party, as
                ------                         -------
Administrative Agent for the Lenders and BNY Factoring LLC, as Syndication Agent
(such agreement as it may be amended, restated or otherwise modified from time
to time is referred to herein as the "Credit Agreement").
                                      ----------------

     B.   The execution and delivery of this Agreement is required by the Credit
Agreement as a condition to the Lenders' obligations under the Credit Agreement.

     C.   Terms defined in the Credit Agreement, and not otherwise defined
herein, are used herein with their meanings so defined.

     NOW THEREFORE, in consideration of the premises and for other good and
valuable consideration, the adequacy, receipt, and sufficiency of which are
hereby acknowledged, and in order to induce Secured Party and the Lenders to
make Loans and issue Letters of Credit pursuant to the Credit Agreement, the
parties hereto hereby agree as follows:

                                  ARTICLE I.

                                  Definitions
                                  -----------

     Section A.  Definitions.  As used in this Agreement, the following terms
                 -----------
have the following meanings:

          "Account" means any "account," as such term is defined in Article or
           -------
     Chapter 9 of the UCC, now owned or hereafter acquired by Debtor, and, in
     any event, shall include, without limitation, each of the following,
     whether now owned or hereafter acquired by Debtor: (a) all rights of Debtor
     to payment for goods sold or leased, services rendered or the license of
     Intellectual Property, whether or not earned by performance; (b) all
     accounts receivable of Debtor; (c) all rights of Debtor to receive any
     payment of money or other form of consideration; (d) all security pledged,
     assigned, or granted to or held by Debtor to secure any of the foregoing;
     (e) all guaranties of, or indemnifications with respect to, any of the
     foregoing; (f) all rights of Debtor as an unpaid seller of goods or
     services, including, but not limited to, all rights of stoppage in transit,
     replevin, reclamation, and resale; and (g) all rights to brokerage
     commissions.
<PAGE>

          "Amendment" means any amendment of this Agreement between Debtor and
           ---------
     Secured Party required hereby or entered into pursuant to the terms of the
     Credit Agreement, including, without limitation, any amendment in the form
     of Exhibit A hereto.
        ---------

          "Capital Stock" means corporate stock and any and all shares,
           -------------
     partnership interests, equity interests, rights, securities or other
     equivalent evidences of ownership (however designated) issued by any entity
     (whether a corporation, partnership, limited liability company, limited
     partnership or other type of entity).

          "Chattel Paper" means any "chattel paper," as such term is defined in
           -------------
     Article or Chapter 9 of the UCC, now owned or hereafter acquired by Debtor.

          "Collateral" has the meaning specified in Section 2.1 of this
           ----------                               -----------
     Agreement.

          "Copyright License" means any written agreement now or hereafter in
           -----------------
     existence granting to Debtor any right to use any Copyright, including,
     without limitation, the agreements identified on Schedule 3.5.
                                                      ------------

          "Copyrights" means all of the following: (a) all copyrights, works
           ----------
     protectable by copyright, copyright registrations, and copyright
     applications, including, without limitation, those identified on Schedule
                                                                      --------
     3.5; (b) all renewals, extensions, and modifications thereof; (c) all
     ---
     income, royalties, damages, profits, and payments relating to or payable
     under any of the foregoing; (d) the right to sue for past, present, or
     future infringements of any of the foregoing; and (e) all other rights and
     benefits relating to any of the foregoing throughout the world; in each
     case, whether now owned or hereafter acquired by Debtor.

          "Copyright Security Agreement" means a copyright security agreement to
           ----------------------------
     be executed and delivered by Debtor to Secured Party, substantially in the
     form of Exhibit B hereto and otherwise in form and substance satisfactory
             ---------
     to Secured Party, for the purpose of recording such agreement with any
     copyright office of a Governmental Authority, as such agreement may be
     amended, restated, or otherwise modified from time to time.

          "Deposit Accounts" means any and all deposit accounts, certificates of
           ----------------
     deposit, or other bank accounts now owned or hereafter acquired or opened
     by Debtor, and any account which is a replacement or substitute for any of
     such accounts including, without limitation, those deposit accounts
     identified on Schedule 3.2.
                   ------------

          "Document" means any "document," as such term is defined in Article or
           --------
     Chapter 9 of the UCC, now owned or hereafter acquired by Debtor, including,
     without limitation, all documents of title and all receipts covering,
     evidencing, or representing goods now owned or hereafter acquired by
     Debtor.

          "Equipment" means any "equipment," as such term is defined in Article
           ---------
     or Chapter 9 of the UCC, now owned or hereafter acquired by Debtor and, in
     any event, shall include,

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 2
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     without limitation, all machinery, furniture, trailers, rolling stock,
     vessels, aircraft, and vehicles now owned or hereafter acquired by Debtor
     and any and all additions, substitutions, and replacements of any of the
     foregoing, wherever located, together with all attachments, components,
     parts, equipment, and accessories installed thereon or affixed thereto.

          "Financial Assets" means any "financial asset," as such term is
           ----------------
     defined in Article or Chapter 8 of the UCC.

          "Fixtures" means any "fixtures," as such term is defined in Article or
           --------
     Chapter 9 of the UCC, now owned or hereafter acquired by Debtor and in any
     event shall include, without limitation, all plant fixtures, business
     fixtures, other fixtures, and storage office facilities, wherever located,
     and all additions and accessions thereto and replacements therefor.

          "General Intangibles" means any "general intangibles," as such term is
           -------------------
     defined in Article or Chapter 9 of the UCC, now owned or hereafter acquired
     by Debtor and, in any event, shall include, without limitation, each of the
     following, whether now owned or hereafter acquired by Debtor: (a) all of
     Debtor's Intellectual Property together with all of Debtor's trade secrets,
     proprietary information, customer lists, designs, and inventions; (b) all
     of Debtor's books, records, data, plans, manuals, computer software,
     computer tapes, computer disks, computer programs, source codes, object
     codes, and all rights of Debtor to retrieve data and other information from
     third parties; (c) all of Debtor's contract rights (including, without
     limitation, all of Debtor's right, title, and interest in and to the Loan
     Documents), which include, without limitation, (i) all rights of Debtor to
     receive moneys due and to become due under or pursuant to such agreements,
     (ii) all rights of Debtor to receive proceeds of any insurance, indemnity,
     warranty, or guaranty with respect to such agreements, (iii) all claims of
     Debtor for damages arising out of or for breach of or default under such
     agreements, (iv) all rights of Debtor to terminate such agreements, to
     perform thereunder, and to compel performance and otherwise exercise all
     rights and remedies thereunder, and (v) any rights to Liens securing
     Pledged Collateral, Accounts, or obligations arising under any Loan
     Document, (d) all rights or interests of Debtor in any partnership or joint
     venture; (e) all rights of Debtor to payment under letters of credit and
     similar agreements; (f) all tax refunds and tax refund claims of Debtor;
     (g) all choses in action and causes of action of Debtor (whether arising in
     contract, tort, or otherwise and whether or not currently in litigation)
     and all judgments in favor of Debtor; (h) all rights and claims of Debtor
     under warranties and indemnities; and (i) all rights of Debtor under any
     insurance, surety, or similar contract or arrangement, including, without
     limitation, all claims under governmental health care programs and claims
     under private insurance to which Debtor is entitled or which have been
     assigned to it.

          "Instrument" means any "instrument," as such term is defined in
           ----------
     Article or Chapter 9 of the UCC, now owned or hereafter acquired by Debtor,
     and, in any event, shall include all promissory notes, drafts, bills of
     exchange, and trade acceptances, whether now owned or hereafter acquired by
     Debtor.

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 3
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          "Intellectual Property" means the Copyrights, Copyright Licenses,
           ---------------------
     Patents, Patent Licenses, Trademarks, and Trademark Licenses.

          "Inventory" means any "inventory," as such term is defined in Article
           ---------
     or Chapter 9 of the UCC, now owned or hereafter acquired by Debtor, and, in
     any event, shall include, without limitation, each of the following,
     whether now owned or hereafter acquired by Debtor: (a) all goods and other
     personal property that are held for sale or lease or to be furnished under
     any contract of service; (b) all raw materials, work-in-process, finished
     goods, inventory, supplies, and materials; (c) all wrapping, packaging,
     advertising, and shipping materials; (d) all goods that have been returned
     to, repossessed by, or stopped in transit by Debtor; and (e) all Documents
     evidencing any of the foregoing.

          "Investment Property" means any "investment property" as such term is
           -------------------
     defined in Article or Chapter 9 of the UCC, now owned or hereafter acquired
     by Debtor, and, in any event, shall include, without limitation, each of
     the following, whether now owned or hereafter acquired: (a) any security,
     whether certificated or uncertificated; (b) any security entitlement; (c)
     any securities account (including, without limitation, those described on
     Schedule 3.2); (d) any commodity contract; and (e) any commodity account
     ------------
     (including, without limitation, those identified on Schedule 3.2).
                                                         ------------

          "Obligations" means and includes the "Obligations" as such term is
           -----------
     defined in the Credit Agreement.

          "Patent License" means any written agreement now or hereafter in
           --------------
     existence granting to Debtor any right to use any invention on which a
     Patent is in existence, including, without limitation, the agreements
     identified on Schedule 3.5.
                   ------------

          "Patents" means any and all of the following: (a) all patents, patent
           -------
     applications, and patentable inventions, including, without limitation,
     those identified on Schedule 3.5, and all of the inventions and
                         ------------
     improvements described and claimed therein; (b) all continuations,
     divisions, renewals, extensions, modifications, substitutions,
     continuations-in-part, or reissues of any of the foregoing; (c) all income,
     royalties, profits, damages, awards, and payments relating to or payable
     under any of the foregoing; (d) the right to sue for past, present, and
     future infringements of any of the foregoing; and (e) all other rights and
     benefits relating to any of the foregoing throughout the world; in each
     case, whether now owned or hereafter acquired by Debtor.

          "Patent Security Agreement" means a patent security agreement to be
           -------------------------
     executed and delivered by Debtor to Secured Party, substantially in the
     form of Exhibit C hereto and otherwise in form and substance satisfactory
             ---------
     to Secured Party, for the purpose of recording such agreement with any
     copyright office of a Governmental Authority, as such agreement may be
     amended, restated, or otherwise modified from time to time.

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 4
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          "Pledged Collateral" means the Pledged Shares and the Instruments
           ------------------
     evidencing the obligations of Subsidiaries to Debtor described in Section
                                                                       -------
     2.1(c).
     ------

          "Pledged Shares" means the Capital Stock identified on Schedule 1.1
           --------------                                        ------------
     attached hereto, which constitutes 100% of the Capital Stock of each of the
     direct Domestic Subsidiaries of Debtor and 65% of the Capital Stock of each
     of the direct Foreign Subsidiaries of Debtor, or on Schedule 1 to an
                                                         ----------
     Amendment (all of which shall not, in any event, include more than 65% of
     the Capital Stock of any direct Foreign Subsidiary).

          "Proceeds" means any "proceeds," as such term is defined in Article or
           --------
     Chapter 9 of the UCC and, in any event, shall include, but not be limited
     to, (a) any and all proceeds of any insurance, indemnity, warranty, or
     guaranty payable to Debtor from time to time with respect to any of the
     Collateral, (b) any and all payments (in any form whatsoever) made or due
     and payable to Debtor from time to time in connection with any requisition,
     confiscation, condemnation, seizure, or forfeiture of all or any part of
     the Collateral by any Governmental Authority (or any Person acting, or
     purporting to act, for or on behalf of any Governmental Authority), and (c)
     any and all other amounts from time to time paid or payable under or in
     connection with any of the Collateral.

          "Trademark License" means any written agreement now or hereafter in
           -----------------
     existence granting to Debtor any right to use any Trademark, including,
     without limitation, the agreements identified on Schedule 3.5.
                                                      ------------

          "Trademarks" means all of the following: (a) all trademarks, trade
           ----------
     names, corporate names, company names, business names, fictitious business
     names, trade styles, service marks, logos, other business identifiers,
     prints and labels on which any of the foregoing appear, all registrations
     and recordings thereof, and all applications in connection therewith,
     including, without limitation, registrations, recordings, and applications
     in the United States Patent and Trademark Office or in any similar office
     or agency of the United States, any state thereof or any other country or
     any political subdivision thereof, including, without limitation, those
     identified in Schedule 3.5; (b) all reissues, extensions, and renewals
                   ------------
     thereof; (c) all income, royalties, damages, and payments now or hereafter
     relating to or payable under any of the foregoing, including, without
     limitation, damages or payments for past or future infringements of any of
     the foregoing; (d) the right to sue for past, present, and future
     infringements of any of the foregoing; (e) all rights corresponding to any
     of the foregoing throughout the world; and (f) all goodwill associated with
     and symbolized by any of the foregoing; in each case, whether now owned or
     hereafter acquired by Debtor.

          "Trademark Security Agreement" means a trademark security agreement to
           ----------------------------
     be executed and delivered by Debtor to Secured Party, substantially in the
     form of Exhibit D hereto and otherwise in form and substance satisfactory
             ---------
     to Secured Party, for the purpose of

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 5
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     recording such agreement with any copyright office of a Governmental
     Authority, as such agreement may be amended, restated, or otherwise
     modified from time to time.

          "UCC" means the Uniform Commercial Code as in effect in the
           ---
     Commonwealth of Massachusetts and/or any other jurisdiction the laws of
     which may be applicable to or in connection with the creation, perfection
     or priority of any Lien on any Collateral.

     Section B.  Other Definitional Provisions.  References to "Sections,"
                 -----------------------------
"subsections," "Exhibits," and "Schedules" shall be to Sections, subsections,
Exhibits and Schedules, respectively, of this Agreement unless otherwise
specifically provided. All definitions contained in this Agreement are equally
applicable to the singular and plural forms of the terms defined. All references
to statutes and regulations shall include any amendments of the same and any
successor statutes and regulations. References to particular sections of the UCC
should be read to refer also to parallel sections of the Uniform Commercial Code
as enacted in each state or other jurisdiction where any portion of the
Collateral is or may be located. Terms used herein, which are defined in the
UCC, unless otherwise defined herein or in the Credit Agreement, shall have the
meanings determined in accordance with the UCC.

                                  ARTICLE II.

                               Security Interest
                               -----------------

     Section A.  Security Interest.  As collateral security for the prompt
                 -----------------
payment and performance in full when due of the Obligations (whether at stated
maturity, by acceleration, or otherwise), Debtor hereby pledges and assigns to
Secured Party, and grants to Secured Party a continuing lien on and security
interest in, all of Debtor's right, title, and interest in and to the following,
whether now owned or hereafter arising or acquired and wherever located (the
"Collateral"):
 ----------

     (a)  all Accounts;

     (b)  all Chattel Paper;

     (c)  all Instruments, including, without limitation, or in addition, all
          instruments evidencing indebtedness from time to time owed to Debtor
          by any Person, and all interest, cash, and other property from time to
          time received, receivable, or otherwise distributed or distributable
          in respect of or in exchange for any or all of such Instruments;

     (d)  all General Intangibles;

     (e)  all Documents;

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 6
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     (f)  all Equipment;

     (g)  all Fixtures;

     (h)  all Inventory;

     (i)  all Financial Assets and Investment Property, including, without
          limitation, or in addition, the following:

          (1)  all of the Pledged Shares and the certificates (if any)
               representing the Pledged Shares, and all dividends, cash,
               Instruments, and other property from time to time received,
               receivable, or otherwise distributed or distributable in respect
               of or in exchange for any or all of the Pledged Shares;

          (2)  all additional Capital Stock from time to time owned or acquired
               by Debtor in any manner, and all dividends, cash, Instruments,
               and other property from time to time received, receivable, or
               otherwise distributed or distributable in respect of or in
               exchange for any or all of such Capital Stock; provided, no more
               than 65% of the Capital Stock of a Foreign Subsidiary shall be
               required to be pledged and no Capital Stock owned by a Foreign
               Subsidiary shall be required to be pledged; and

     (j)  all of Debtor's Deposit Accounts and all funds, certificates,
          Documents, Instruments, checks, drafts, wire transfer receipts, and
          other earnings, profits, or other Proceeds from time to time
          representing, evidencing, deposited into, or held in the Deposit
          Accounts;

     (k)  all other goods and personal property of Debtor of any kind or
          character, whether tangible or intangible, including, without
          limitation, any and all rights in and claims under insurance policies,
          judgments and rights thereunder, and tort claims; and

     (l)  all products and Proceeds, in cash or otherwise, of any of the
          property described in the foregoing clauses (a) through (k).
                                              -----------------------

     Section B.  Excluded Property.  Notwithstanding Section 2.1, the payment
                 -----------------                   -----------
and performance of the Obligations shall not be secured by:

     (a)  any contract, license, permit or franchise that unconditionally and
          validly, to the extent permitted by applicable law and otherwise not
          prohibited by the Loan Documents, prohibits the creation by Debtor of
          a Lien in such contract, license, permit or franchise (or in any
          rights or property obtained by Debtor under such contract, license,
          permit or franchise); provided, however, that, notwithstanding the
                                --------  -------
          provisions of this Section 2.2, the Liens created or arising pursuant
                             -----------
          to this Agreement

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 7
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          shall, in any case, extend to the Proceeds and/or products of such
          contract, license, permit or franchise (or such rights or property) or
          to the monetary value of the good will and other General Intangibles
          of Debtor relating thereto;

     (b)  any rights or property to the extent that any valid and enforceable
          law or regulation applicable to such rights or property
          unconditionally prohibits the creation of a Lien therein; provided,
                                                                    --------
          however, that, notwithstanding the provisions of this Section 2.2, the
          -------                                               -----------
          Liens created or arising pursuant to this Agreement shall, in any
          case, extend to the Proceeds and/or products of such rights or
          property or to the monetary value of the good will and other General
          Intangibles of Debtor relating thereto;

     (c)  more than 65% of the Capital Stock of any direct Foreign Subsidiary;
          or

     (d)  the Installment Note.

     In addition, in the event Debtor disposes of assets of third parties in a
transaction permitted by Section 11.8 of the Credit Agreement, such assets shall
                         ------------
be released from any Lien on such assets arising pursuant to this Agreement;
provided, however, that the Liens arising pursuant to this Agreement shall, in
--------  -------
any case, extend to the Proceeds and/or products of any such assets.

     Section C.  Debtor Remains Liable. Notwithstanding anything to the contrary
                 ---------------------
contained herein, (a) Debtor shall remain liable under the documentation
included in the Collateral to the extent set forth therein to perform all of its
duties and obligations thereunder to the same extent as if this Agreement had
not been executed, (b) the exercise by Secured Party of any of its rights or
remedies hereunder shall not release Debtor from any of its duties or
obligations under such documentation, (c) Secured Party shall not have any
obligation under any of such documentation included in the Collateral by reason
of this Agreement, and (d) Secured Party shall not be obligated to perform any
of the obligations of Debtor thereunder or to take any action to collect or
enforce any claim for payment assigned hereunder.

                                 ARTICLE III.

                        Representations and Warranties
                        ------------------------------

     To induce Secured Party and the Lenders to enter into this Agreement and
the Credit Agreement, Debtor represents and warrants as follows:

     Section A.  Location of Equipment, Fixtures, and Inventory; Third Parties
                 -------------------------------------------------------------
in Possession.  All of the Equipment, Fixtures and Inventory are located in the
-------------
jurisdictions and at the places specified in Schedule 3.1.
                                             ------------

     Section B.  Deposit, Commodity, and Securities Accounts.  Schedule 3.2
                 -------------------------------------------   ------------
correctly identifies all deposit, commodity, and securities accounts owned by
Debtor and the institutions holding such accounts. No Person other than Debtor
has control over any Investment Property.

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 8
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     Section C.  Office Locations; Fictitious Names; Tax I.D. Number.  The
                 ---------------------------------------------------
principal place of business and the chief executive office of Debtor is
identified on Schedule 3.1.  Schedule 3.1 also sets forth all other places where
              ------------   ------------
Debtor keeps its books and records and all other locations where Debtor has a
place of business.  Debtor does not do business and has not done business during
the past five (5) years under any trade-name or fictitious business name except
as disclosed on Schedule 3.3.  Debtor's United States Federal Income Tax
                ------------
Identification Number is set forth on Schedule 3.3.
                                      ------------

     Section D.  Delivery of Collateral.  Except as provided by Section 4.3
                 ----------------------                         -----------
hereof and Section 8.1 (a)(xi) of the Credit Agreement, Debtor has delivered to
           -------------------
Secured Party all Collateral the possession of which is necessary to perfect the
security interest of Secured Party therein. All certificates of title evidencing
Equipment have been delivered to Secured Party to the extent required to perfect
the security interest of Secured Party therein.

     Section E.  Intellectual Property.  All of Debtor's Intellectual Property
                 ---------------------
that is registered with or for which an application for registration has been
filed with any Governmental Authority is identified on Schedule 3.5, and such
                                                       ------------
information is true, correct, and complete.

                                  ARTICLE IV.

                                   Covenants
                                   ---------

     Debtor covenants and agrees that, as long as the Obligations or any part
thereof are outstanding or any Lender has any Commitment under the Credit
Agreement, Debtor will perform and observe each of the following covenants:

     Section A.  Accounts.  Debtor shall, in accordance with its customary
                 --------
business practices, endeavor to collect or cause to be collected from each
account debtor under its Accounts, as and when due, any and all amounts owing
under such Accounts. Without the prior written consent of Secured Party, which
will not be unreasonably delayed or withheld, Debtor shall not, except in the
ordinary course of business and in no event when any Default exists, (a) grant
any extension of time for any payment with respect to any of the Accounts beyond
one hundred twenty (120) days after such payment's due date, (b) compromise,
compound, or settle any of the Accounts for less than the full amount thereof,
(c) release, in whole or in part, any Person liable for payment of any of the
Accounts, (d) allow any credit or discount for payment with respect to any
Account other than trade or other customary discounts granted in the ordinary
course of business, or (e) release any Lien or guaranty securing any Account
unless the Account has been paid.

     Section B.  Further Assurances; Exceptions to Perfection.  At any time and
                 --------------------------------------------
from time to time, upon the reasonable request of Secured Party, and at the sole
expense of Debtor, Debtor shall promptly execute and deliver all such further
agreements, documents, and instruments and take such further action as Secured
Party may reasonably deem necessary or appropriate to preserve and

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perfect its security interest in the Collateral and carry out the provisions and
purposes of this Agreement or to enable Secured Party to exercise and enforce
its rights and remedies hereunder with respect to any of the Collateral. Without
limiting the generality of the foregoing, Debtor shall upon reasonable request
by Secured Party (a) execute and deliver to Secured Party such financing
statements as Secured Party may from time to time require, (b) take such action
during the continuance of an Event of Default as Secured Party may request to
permit Secured Party to have control over any Investment Property or any Deposit
Account, (c) except as provided by Section 8.1 (a)(xi) of the Credit Agreement,
                                   -------------------
deliver to Secured Party all Collateral the possession of which is necessary to
perfect the security interest therein, duly endorsed and/or accompanied by duly
executed instruments of transfer or assignment, all in form and substance
satisfactory to Secured Party; except that, at all times other than during the
                               ------
continuance of an Event of Default, Debtor may: (i) retain for collection in the
ordinary course of business checks representing Proceeds of Accounts received in
the ordinary course of business; (ii) retain any letters of credit received in
the ordinary course of business; (iii) retain and utilize in the ordinary course
of business all dividends, interest and other amounts paid in respect to any of
the Pledged Collateral or any other Investment Property; and (iv) retain any
Documents received and further negotiated in the ordinary course of business,
(d) deliver any and all certificates of title, applications for title or similar
evidence of ownership of Equipment and cause Secured Party to be named as
lienholder thereon, and (e) execute and deliver to Secured Party such other
agreements, documents, and instruments as Secured Party may reasonably require
to perfect and maintain the validity, effectiveness, and priority of the Liens
intended to be created by this Agreement or any other Loan Document.

     Section C.  Third Parties in Possession of Collateral.  Debtor shall not
                 -----------------------------------------
permit any third Person (including any warehouseman, bailee, agent, consignee,
or processor) to hold any Collateral, unless Debtor shall: (i) notify such third
Person of the security interests created hereby; (ii) instruct such Person to
hold all such Collateral for Secured Party's account subject to Secured Party's
instructions; and (iii) take all other actions Secured Party reasonably deems
necessary to perfect and protect its and Debtor's interests in such Collateral
pursuant to the requirements of the UCC of the applicable jurisdiction where
such warehouseman, bailee, consignee, agent, processor, or other third Person is
located (including the filing of financing statements in the proper
jurisdictions naming the applicable third Person as debtor and Debtor as secured
party and notifying the third Person's secured lenders of Debtor's interest in
such Collateral before the third Person receives possession of the Collateral in
question).

     Section D.  Corporate Changes.  Debtor shall not change its name, identity,
                 -----------------
corporate structure, or its United States Tax Identification Number in any
manner that might make any financing statement filed in connection with this
Agreement seriously misleading unless Debtor shall have given Secured Party not
less than thirty (30) days prior written notice thereof and shall have taken all
action reasonably deemed necessary or desirable by Secured Party to protect its
Liens with the perfection and priority thereof required by the Loan Documents.
Debtor shall not change its principal place of business, chief executive office,
or the place where it keeps its books and records unless it shall have given
Secured Party not less than thirty (30) days prior written notice thereof and

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 10
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shall have taken all action deemed necessary or desirable by Secured Party to
cause its security interest in the Collateral to be perfected with the priority
required by the Loan Documents.

     Section E.  Equipment, Fixtures, and Inventory.  Debtor shall keep the
                 ----------------------------------
Equipment, Fixtures, and Inventory in (or in transit to) any of the
jurisdictions specified on Schedule 3.1 hereto or, upon not less than thirty
                           ------------
(30) days prior written notice to Secured Party, at such other places within the
United States of America where all actions required to perfect Secured Party's
security interest in such Collateral with the priority required by the Loan
Documents shall have been taken.

     Section F.  Warehouse Receipts Non-Negotiable.  Debtor agrees that if and
                 ---------------------------------
warehouse receipt or receipt in the nature of a warehouse receipt is issued in
respect of any portion of the Collateral, such warehouse receipt or receipt in
the nature thereof shall not be "negotiable" (as such term is used in Section
7.104 of the UCC) unless such warehouse receipt or receipt in the nature thereof
is delivered to Secured Party.

     Section G.  Voting Rights; Distributions, Etc.  So long as no Event of
                 ----------------------------------
Default shall have occurred and be continuing, Debtor shall be entitled to
exercise any and all voting and other consensual rights (including, without
limitation, the right to give consents, waivers, and notifications) pertaining
to any of the Pledged Collateral or any other Investment Property; provided,
                                                                   --------
however, that without the prior written consent of Secured Party no vote shall
-------
be cast or consent, waiver, or ratification given or action taken which would be
inconsistent with or violate any provision of this Agreement or any other Loan
Document.

     Section H.  Transfers and Other Liens; Additional Investments.  Except as
                 -------------------------------------------------
provided otherwise by the Credit Agreement or this Agreement, Debtor agrees that
it will (i) cause each issuer of any of the Pledged Collateral not to issue any
Capital Stock, notes, or other securities or instruments in addition to or in
substitution for any of the Pledged Collateral, (ii) pledge hereunder,
immediately upon its acquisition thereof, any and all such Capital Stock, notes,
or other securities or instruments, and (iii) promptly (and in any event within
three (3) Business Days) deliver to Secured Party an Amendment, duly executed by
Debtor, in respect of such Capital Stock, notes, or other securities or
instruments, together with all certificates, notes, or other securities or
instruments representing or evidencing the same. Debtor hereby (i) authorizes
Secured Party to attach each Amendment to this Agreement, and (ii) agrees that
all such Capital Stock, notes, or other securities or instruments listed on any
Amendment delivered to Secured Party shall for all purposes hereunder constitute
Pledged Collateral.

     Section I.  Intellectual Property Covenants.  If, before the Obligations
                 -------------------------------
are paid in full, Debtor obtains any new Intellectual Property or rights thereto
or becomes entitled to the benefit of any Intellectual Property, Debtor shall
give to Secured Party prompt written notice thereof, and shall, upon the request
of Secured Party, execute and deliver, in form and substance reasonably
satisfactory to Secured Party, a Copyright Security Agreement, Patent Security
Agreement, or Trademark Security Agreement, as applicable, describing any such
new Intellectual Property. Debtor shall (a) prosecute diligently any copyright,
patent, or trademark application at any time pending which is necessary for the
conduct of Debtor's business, (b) make application on all new copyrights,
patents,

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 11
<PAGE>

and trademarks as reasonably deemed appropriate by Debtor, (c) preserve and
maintain all rights in the Intellectual Property that is necessary for the
conduct of Debtor's business, and (d) upon and after the occurrence and during
the continuance of an Event of Default, use its reasonable efforts to obtain any
consents, waivers, or agreements necessary to enable Secured Party to exercise
its remedies with respect to the Intellectual Property. Debtor shall not,
without the prior written consent of Secured Party, which will not be
unreasonably withheld, abandon any pending copyright, patent, or trademark
application, or Copyright, Patent, Trademark, or any other Intellectual Property
which is necessary for the conduct of Debtor's business.

     Section J.  Deposit, Commodity, and Security Accounts.  Debtor shall not
                 -----------------------------------------
open any new deposit, commodity, or securities account or otherwise utilize any
such account other than the accounts identified on Schedule 3.2 unless Debtor
                                                   ------------
shall have given Secured Party not less than thirty (30) days prior written
notice thereof and shall have taken all action deemed reasonably necessary or
desirable by Secured Party to cause its security interest therein to be
perfected with the priority required by the Loan Documents. Prior to the
occurrence and continuance of any Event of Default, Debtor may make purchases
and sales of Investment Property or Financial Assets in accordance with the
restrictions on investment set out in the Credit Agreement. After the occurrence
and during the continuance of an Event of Default, Debtor shall not be
authorized to make purchases and sales of the Investment Property or Financial
Assets and Debtor shall take such steps as Secured Party may reasonably request
to give Secured Party control over all Investment Property and Financial Assets.
Except as permitted by this Agreement or the other Loan Documents, Debtor will
not give any party control over any Investment Property or Financial Assets.

                                  ARTICLE V.

                            Rights of Secured Party
                            -----------------------

     Section A.  Power of Attorney.  DEBTOR HEREBY IRREVOCABLY CONSTITUTES AND
                 -----------------
APPOINTS SECURED PARTY AND ANY OFFICER OR AGENT THEREOF, WITH FULL POWER OF
SUBSTITUTION, AS ITS TRUE AND LAWFUL ATTORNEY-IN-FACT WITH FULL IRREVOCABLE
POWER AND AUTHORITY IN THE NAME OF DEBTOR OR IN ITS OWN NAME, TO TAKE, WHEN AN
EVENT OF DEFAULT EXISTS, ANY AND ALL ACTIONS AND TO EXECUTE ANY AND ALL
DOCUMENTS AND INSTRUMENTS WHICH SECURED PARTY AT ANY TIME AND FROM TIME TO TIME
REASONABLY DEEMS NECESSARY TO ACCOMPLISH THE PURPOSES OF THIS AGREEMENT AND,
WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, DEBTOR HEREBY GIVES SECURED
PARTY THE POWER AND RIGHT ON BEHALF OF DEBTOR AND IN ITS OWN NAME TO DO ANY OF
THE FOLLOWING AFTER THE OCCURRENCE AND DURING THE CONTINUANCE OF AN EVENT OF
DEFAULT WITHOUT THE CONSENT OF DEBTOR, SUBJECT TO APPLICABLE LAW:

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 12
<PAGE>

          (a)  to demand, sue for, collect, or receive, in the name of Debtor or
     in Secured Party's own name, any money or property at any time payable or
     receivable on account of or in exchange for any of the Collateral and, in
     connection therewith, endorse checks, notes, drafts, acceptances, money
     orders, documents of title, or any other instruments for the payment of
     money under the Collateral or any policy of insurance;

          (b)  to pay or discharge taxes, Liens, or other encumbrances levied or
     placed on or threatened against the Collateral;

          (c)  to notify post office authorities to change the address for
     delivery of Debtor's mail to an address designated by Secured Party and to
     receive, open, and dispose of mail addressed to Debtor;

          (d)  (i) to direct account debtors and any other parties liable for
     any payment under any of the Collateral to make payment of any and all
     monies due and to become due thereunder directly to Secured Party or as
     Secured Party shall direct (Debtor agrees that if any Proceeds of any
     Collateral (including payments made in respect of Accounts) shall be
     received by Debtor after the occurrence and during the continuance of an
     Event of Default, upon notice, Debtor shall promptly deliver such Proceeds
     to Secured Party with any necessary endorsements, and until such Proceeds
     are delivered to Secured Party, such Proceeds shall be held in trust by
     Debtor for the benefit of Secured Party and shall not be commingled with
     any other funds or property of Debtor); (ii) to receive payment of and
     receipt for any and all monies, claims and other amounts due and to become
     due at any time in respect of or arising out of any Collateral; (iii) to
     sign and endorse any invoices, freight or express bills, bills of lading,
     storage or warehouse receipts, drafts against debtors, assignments,
     proxies, stock powers, verifications, and notices in connection with
     accounts and other documents relating to the Collateral; (iv) to commence
     and prosecute any suit, action, or proceeding at law or in equity in any
     court of competent jurisdiction to collect the Collateral or any part
     thereof and to enforce any other right in respect of any Collateral; (v) to
     defend any suit, action, or proceeding brought against Debtor with respect
     to any Collateral; (vi) to settle, compromise, or adjust any suit, action,
     or proceeding described above and, in connection therewith, to give such
     discharges or releases as Secured Party may deem appropriate; (vii) to
     exchange any of the Collateral for other property upon any merger,
     consolidation, reorganization, recapitalization, or other readjustment of
     the issuer thereof and, in connection therewith, deposit any of the
     Collateral with any committee, depositary, transfer agent, registrar, or
     other designated agency upon such terms as Secured Party may determine;
     (viii) to add or release any guarantor, indorser, surety, or other party to
     any of the Collateral; (ix) to renew, extend, or otherwise change the terms
     and conditions of any of the Collateral; (x) to grant or issue any
     exclusive or nonexclusive license under or with respect to any of the
     Intellectual Property (subject to the rights of third parties under pre-
     existing licenses); (xi) to endorse Debtor's name on all applications,
     documents, papers, and instruments reasonably necessary or desirable in
     order for Secured Party to use any of the Intellectual Property; (xii) to
     make, settle, compromise, or adjust any claims under or

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 13
<PAGE>

     pertaining to any of the Collateral (including claims under any policy of
     insurance); and (xiii) to sell, transfer, pledge, convey, make any
     agreement with respect to, or otherwise deal with any of the Collateral as
     fully and completely as though Secured Party were the absolute owner
     thereof for all purposes, and to do, at Secured Party's option and Debtor's
     expense, at any time, or from time to time, all acts and things which
     Secured Party reasonably deems necessary or desirable to protect, preserve,
     maintain, or realize upon the Collateral and Secured Party's security
     interest therein.

     THIS POWER OF ATTORNEY IS A POWER COUPLED WITH AN INTEREST AND SHALL BE
IRREVOCABLE UNTIL TERMINATION OF THIS AGREEMENT IN ACCORDANCE WITH SECTION 7.11
                                                                   ------------
HEREOF. Secured Party shall be under no duty to exercise or withhold the
exercise of any of the rights, powers, privileges, and options expressly or
implicitly granted to Secured Party in this Agreement, and shall not be liable
for any failure to do so or any delay in doing so that is not grossly negligent
nor an instance of willful misconduct. Neither Secured Party nor any Person
designated by Secured Party shall be liable for any act or omission or for any
error of judgment or any mistake of fact or law, except any of the same
resulting from its or their gross negligence or willful misconduct. This power
of attorney is conferred on Secured Party solely to protect, preserve, maintain,
and realize upon its security interest in the Collateral. Secured Party shall
not be responsible for any decline in the value of the Collateral not caused by
Secured Party's gross negligence or willful misconduct and shall not be required
to take any steps to preserve rights against prior parties or to protect,
preserve, or maintain any Lien given to secure the Collateral.

     Section B.  Assignment by Secured Party.  Secured Party and each Lender may
                 ---------------------------
at any time assign or otherwise transfer all or any portion of their rights and
obligations under this Agreement and the other Loan Documents (including,
without limitation, the Obligations) to any other Person, to the extent
permitted by, and upon the conditions contained in, the Credit Agreement, and
such Person shall thereupon become vested with all the benefits thereof granted
to Secured Party or the Lenders, as applicable, herein or otherwise.

     Section C.  Possession; Reasonable Care.  Except to the extent prohibited
                 ---------------------------
by applicable law that cannot be waived, Secured Party may, from time to time,
in its sole discretion, appoint one or more agents to hold physical custody, for
the account of Secured Party, of any or all of the Collateral that Secured Party
has a right to possess. Secured Party shall be deemed to have exercised
reasonable care in the custody and preservation of the Collateral in its
possession if the Collateral is accorded treatment substantially equal to that
which Secured Party accords its own property, it being understood that Secured
Party shall not have any responsibility for (a) ascertaining or taking action
with respect to calls, conversions, exchanges, maturities, tenders, or other
matters relative to any Collateral, whether or not Secured Party has or is
deemed to have knowledge of such matters, or (b) taking any necessary steps to
preserve rights against any parties with respect to any Collateral.

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 14
<PAGE>

                                  ARTICLE VI.

                                    Default
                                    -------

     Section A.  Rights and Remedies.  If an Event of Default shall have
                 -------------------
occurred and be continuing, Secured Party shall have the following rights and
remedies (except to the extent prohibited by applicable law that cannot be
waived):

          (a)    In addition to all other rights and remedies granted to Secured
     Party in this Agreement or in any other Loan Document or by applicable law,
     Secured Party shall have all of the rights and remedies of a secured party
     under the UCC (whether or not the UCC applies to the affected Collateral).
     Without limiting the generality of the foregoing, Secured Party may (i)
     without demand or notice to Debtor or any other person, collect, receive,
     or take possession of the Collateral or any part thereof and for that
     purpose Secured Party may enter upon any premises on which the Collateral
     is located and remove the Collateral therefrom or render it inoperable,
     and/or (ii) sell, lease, or otherwise dispose of the Collateral, or any
     part thereof, in one or more parcels at public or private sale or sales, at
     Secured Party's offices or elsewhere, for cash, on credit, or for future
     delivery, and upon such other terms as Secured Party may deem commercially
     reasonable or otherwise as may be permitted by law. Secured Party shall
     have the right at any public sale or sales, and, to the extent permitted by
     applicable law, at any private sale or sales, to bid (which bid may be, in
     whole or in part, in the form of cancellation of indebtedness) and become a
     purchaser of the Collateral or any part thereof free of any right or equity
     of redemption on the part of Debtor, which right or equity of redemption is
     hereby expressly waived and released by Debtor. Upon the request of Secured
     Party, Debtor shall assemble the Collateral and make it available to
     Secured Party at any place designated by Secured Party that is reasonably
     convenient to Debtor and Secured Party. Debtor agrees that Secured Party
     shall not be obligated to give more than ten (10) days prior written notice
     of the time and place of any public sale or of the time after which any
     private sale may take place and that such notice shall constitute
     reasonable notice of such matters. Secured Party shall not be obligated to
     make any sale of Collateral if it shall determine not to do so, regardless
     of the fact that notice of sale of Collateral may have been given. Secured
     Party may, without notice or publication, adjourn any public or private
     sale or cause the same to be adjourned from time to time by announcement at
     the time and place fixed for sale, and such sale may, without further
     notice, be made at the time and place to which the same was so adjourned.
     Debtor shall be liable for all reasonable expenses of retaking, holding,
     preparing for sale, or the like, and all reasonable attorneys' fees, legal
     expenses, and other costs and expenses incurred by Secured Party in
     connection with the collection of the Obligations and the enforcement of
     Secured Party's rights under this Agreement. Debtor shall remain liable for
     any deficiency if the Proceeds of any sale or other disposition of the
     Collateral applied to the Obligations are insufficient to pay the
     Obligations in full. Secured Party may apply the Collateral against the
     Obligations as provided in the Credit Agreement. Debtor waives all rights
     of marshaling, valuation, and appraisal in respect of the Collateral. Any
     cash held by Secured Party as

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 15
<PAGE>

     Collateral and all cash proceeds received by Secured Party in respect of
     any sale of, collection from, or other realization upon all or any part of
     the Collateral may, in the discretion of Secured Party, be held by Secured
     Party as Collateral for, and then or at any time thereafter, shall be
     applied in whole or in part by Secured Party against, the Obligations in
     the order permitted by the Credit Agreement. Any surplus of such cash or
     cash proceeds and interest accrued thereon, if any, held by Secured Party
     and remaining after payment in full of all the Obligations shall be
     promptly paid over to Debtor or to whomsoever may be lawfully entitled to
     receive such surplus; provided that Secured Party shall have no obligation
                           --------
     to invest or otherwise pay interest on any amounts held by it in connection
     with or pursuant to this Agreement.

          (b)  Secured Party may cause any or all of the Collateral held by it
     to be transferred into the name of Secured Party or the name or names of
     Secured Party's nominee or nominees.

          (c)  Secured Party may exercise any and all rights and remedies of
     Debtor under or in respect of the Collateral, including, without
     limitation, any and all rights of Debtor to demand or otherwise require
     payment of any amount under, or performance of any provision of, any of the
     Collateral and any and all voting rights and corporate powers in respect of
     the Collateral. Debtor shall execute and deliver (or cause to be executed
     and delivered) to Secured Party all such proxies and other instruments as
     Secured Party may reasonably request for the purpose of enabling Secured
     Party to exercise the voting and other rights which it is entitled to
     exercise pursuant to this clause (c) and to receive the dividends,
                               ----------
     interest, and other distributions which it is entitled to receive
     hereunder.

          (d)  Secured Party may collect or receive all money or property at any
     time payable or receivable on account of or in exchange for any of the
     Collateral, but shall be under no obligation to do so.

          (e)  On any sale of the Collateral, Secured Party is hereby authorized
     to comply with any limitation or restriction with which compliance is
     necessary, in the view of Secured Party's counsel, in order to avoid any
     violation of applicable law or in order to obtain any required approval of
     the purchaser or purchasers by any applicable Governmental Authority.

          (f)  For purposes of enabling Secured Party to exercise its rights and
     remedies under this Section 6.1 and enabling Secured Party and its
                         -----------
     successors and assigns to enjoy the full benefits of the Collateral in each
     case as Secured Party shall be entitled to exercise its rights and remedies
     under this Section 6.1, Debtor hereby grants to Secured Party an
                -----------
     irrevocable, nonexclusive license (exercisable without payment of royalty
     or other compensation to Debtor) to use, assign, license, or sublicense any
     of the Intellectual Property, including in such license reasonable access
     to all media in which any of the licensed items may be recorded or stored
     and all computer programs used for the completion or printout thereof and
     further including in such license such rights of quality control and

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 16
<PAGE>

     inspection as are reasonably necessary to prevent the Trademarks included
     in such license from claims of invalidation. This license shall also inure
     to the benefit of all successors, assigns, and transferees of Secured
     Party.

     Section B.  Private Sales.  Debtor recognizes that Secured Party may be
                 --------------
unable to effect a public sale of any or all of the Collateral by reason of
certain prohibitions contained in the laws of any jurisdiction outside the
United States or in the Securities Act of 1933, as amended from time to time
(the "Securities Act") and applicable state securities laws, but may be
      --------------
compelled to resort to one or more private sales thereof to a restricted group
of purchasers who will be obliged to agree, among other things, to acquire such
Collateral for their own account for investment and not with a view to the
distribution or resale thereof.  Debtor acknowledges and agrees that any such
private sale may result in prices and other terms less favorable to the seller
than if such sale were a public sale and, notwithstanding such circumstances,
agrees that any such private sale shall, to the extent permitted by law, be
deemed to have been made in a commercially reasonable manner. Neither Secured
Party nor the Lenders shall be under any obligation to delay a sale of any of
the Collateral for the period of time necessary to permit the issuer of such
securities to register such securities under the laws of any jurisdiction
outside the United States, under the Securities Act, or under any applicable
state securities laws, even if such issuer would agree to do so. Debtor further
agrees to do or cause to be done, to the extent that Debtor may do so under
applicable law, all such other reasonable acts and things as may be necessary to
make such sales or resales of any portion or all of the Collateral valid and
binding and in compliance with any and all applicable laws, regulations, orders,
writs, injunctions, decrees, or awards of any and all courts, arbitrators, or
governmental instrumentalities, domestic or foreign, having jurisdiction over
any such sale or sales, all at Debtor's expense.

                                 ARTICLE VII.

                                 Miscellaneous
                                 -------------

     Section A.  No Waiver; Cumulative Remedies.  No failure on the part of
                 ------------------------------
Secured Party to exercise and no delay in exercising, and no course of dealing
with respect to, any right, power, or privilege under this Agreement shall
operate as a waiver thereof, nor shall any single or partial exercise of any
right, power, or privilege under this Agreement preclude any other or further
exercise thereof or the exercise of any other right, power, or privilege. The
rights and remedies provided for in this Agreement are cumulative and not
exclusive of any rights and remedies provided by law.

     Section B.  Successors and Assigns.  This Agreement shall be binding upon
                 ----------------------
and inure to the benefit of Debtor and Secured Party and their respective
successors and assigns, except that Debtor may not assign any of its rights or
obligations under this Agreement without the prior written consent of Secured
Party, and Secured Party may not appoint a successor as Secured Party except in
accordance with the Credit Agreement.

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 17
<PAGE>

     Section C.  Amendment; Entire Agreement.  THIS AGREEMENT AND THE OTHER LOAN
                 ---------------------------
DOCUMENTS EMBODY THE FINAL, ENTIRE AGREEMENT AMONG THE PARTIES HERETO AND
SUPERSEDE ANY AND ALL PRIOR COMMITMENTS, AGREEMENTS, REPRESENTATIONS, AND
UNDERSTANDINGS, WHETHER WRITTEN OR ORAL, RELATING TO THE SUBJECT MATTER HEREOF
AND MAY NOT BE CONTRADICTED OR VARIED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR
SUBSEQUENT ORAL AGREEMENTS OR DISCUSSIONS OF THE PARTIES HERETO. THERE ARE NO
UNWRITTEN ORAL AGREEMENTS AMONG THE PARTIES HERETO. THE PROVISIONS OF THIS
AGREEMENT MAY BE AMENDED OR WAIVED ONLY BY AN INSTRUMENT IN WRITING SIGNED BY
THE PARTIES HERETO.

     Section D.  Notices.  All notices and other communications provided for in
                 -------
this Agreement shall be given or made in accordance with the Credit Agreement.

     Section E.  Governing Law.  THIS AGREEMENT SHALL BE GOVERNED BY, AND
                 -------------
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK AND APPLICABLE
LAWS OF THE UNITED STATES OF AMERICA.

     Section F.  Headings.  The headings, captions, and arrangements used in
                 --------
this Agreement are for convenience only and shall not affect the interpretation
of this Agreement.

     Section G.  Survival of Representations and Warranties. All representations
                 ------------------------------------------
and warranties made in this Agreement or in any certificate delivered pursuant
hereto shall survive the execution and delivery of this Agreement, and no
investigation by Secured Party shall affect the representations and warranties
or the right of Secured Party to rely upon them.

     Section H.  Counterparts.  This Agreement may be executed in any number of
                 ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same agreement.

     Section I.  Waiver of Bond.  In the event Secured Party seeks to take
                 --------------
possession of any or all of the Collateral by judicial process, Debtor hereby
irrevocably waives any bonds and any surety or security relating thereto that
may be required by applicable law as an incident to such possession, and waives
any demand for possession prior to the commencement of any such suit or action.

     Section J.  Severability.  Any provision of this Agreement which is
                 ------------
determined by a court of competent jurisdiction to be prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions of this Agreement, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 18
<PAGE>

     Section K.  Termination.  If all of the Obligations shall have been paid
                 -----------
and performed in full and all Commitments of Secured Party and the Lenders shall
have expired or terminated, Secured Party shall, upon the written request of
Debtor, execute and deliver to Debtor a proper instrument or instruments
acknowledging the release and termination of the security interests created by
this Agreement, and shall duly assign and deliver to Debtor (without recourse
and without any representation or warranty) such of the Collateral as may be in
the possession of Secured Party and has not previously been sold or otherwise
applied pursuant to this Agreement; notwithstanding anything to the contrary
contained in this Agreement, if the payment of any amount of the Obligations is
rescinded, voided or must otherwise be refunded by Secured Party or any Lender
upon the insolvency, bankruptcy or reorganization of Debtor or any other Loan
Party or otherwise for any reason whatsoever, then the security interests
created by this Agreement will be automatically reinstated and become
automatically effective and in full force and effect, all to the extent that and
as though such payment so rescinded, voided or otherwise refunded had never been
made and such release and termination of such security interest had never been
given.

     Section L.  Amendment and Restatement.  This Agreement shall constitute an
                 -------------------------
amendment, restatement and renewal of that certain Pledge and Security
Agreement, dated as of February 24, 1999, between Debtor and Secured Party (the
"Interim Security Agreement"), but not an extinguishment, discharge,
 --------------------------
satisfaction or novation of any indebtedness, liabilities and/or obligations of
Debtor arising under the Interim Security Agreement. All Liens created under
and/or evidenced by the Interim Security Agreement shall continue to be created
under and/or evidenced by this Agreement, with the same perfection and priority
under this Agreement as existed under the Interim Security Agreement.

                 [Remainder of page intentionally left blank]

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 19
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as
of the day and year first written above.

                              DEBTOR:
                              ------

                              RENAISSANCE WORLDWIDE, INC.

                              By:     /s/ Richard L. Bugley
                                     ---------------------------------------
                              Name:   Richard L. Bugley
                                     ---------------------------------------
                              Title:  VP and General Counsel
                                     ---------------------------------------

                              SECURED PARTY:
                              -------------

                              BANK OF AMERICA, N.A.,
                              as Administrative Agent for the Lenders

                              By:     /s/ Timothy M. O'Connor
                                     ---------------------------------------
                              Name:   Timothy M. O'Connor
                                     ---------------------------------------
                              Title:  Vice President
                                     ---------------------------------------

PLEDGE AND SECURITY AGREEMENT (Renaissance Worldwide, Inc.) - Page 20
<PAGE>

                                 Schedule 1.1
                                      TO
                         PLEDGE AND SECURITY AGREEMENT

                                Pledged Shares
                                --------------

<TABLE>
<CAPTION>
                                                           Description of
                                                           Each Class and
                                           State of            Series                           Number of        Number of
Name                                    Incorporation      (If Applicable)     Par Value    Issued Shares     Pledged Shares/1/
----                                   ---------------    -----------------  -------------  -------------  --------------------
<S>                                    <C>                <C>                <C>            <C>            <C>
The Hunter Group, Inc.                     Maryland            Common        No par value           1,000               1,000

Neoglyphics Media Corporation              Illinois            Common        No par value           1,000               1,000

The Registry, Inc. Network              New Hampshire          Common        No par value             100                 100
 Consulting Practice

Renaissance Government Solutions,          Delaware            Common            $.01               1,000               1,000
 Inc.

Renaissance Worldwide IT                   New York            Common        No par value           1,000               1,000
 Consulting Services

Renaissance Worldwide Strategy,            Delaware            Common            $.01               1,000               1,000
 Inc.

Sterling Information Group, Inc.           Delaware            Common            $.01               1,000               1,000

TRI Securities Corp.                    Massachusetts          Common            $.01                 100                 100
</TABLE>

______________________
/1/  100% for Domestic Subsidiaries; 65% for first tier Foreign Subsidiaries;
     subject to Section 8.1(a)(xi) of the Credit Agreement.

Schedule 1.1, Solo Page
<PAGE>

                                 SCHEDULE 3.1
                                      TO
                         PLEDGE AND SECURITY AGREEMENT

                                   Locations
                                   ---------

          Address                        Landlord/Mortgagee
          -------                        ------------------

I.  Principal Place of Business
    ---------------------------

189 Wells Avenue
Newton, MA 02459
(Middlesex County)

II.  Other Locations
     ---------------

70 Wells Avenue
Newton, MA 02459
(Middlesex County)

Schedule 3.1, Solo Page
<PAGE>

                                 SCHEDULE 3.2
                                      TO
                         PLEDGE AND SECURITY AGREEMENT

                  Deposit, Commodity, and Securities Accounts
                  -------------------------------------------

Company                       Account
-------                       -------

Renaissance Worldwide, Inc.      Boston 1784 Funds - 4000209471
                                 Boston 1784 Funds - 400309605

Schedule 3.2, Solo Page
<PAGE>

                                 SCHEDULE 3.3
                                      TO
                         PLEDGE AND SECURITY AGREEMENT

               Trade and Other Names; Tax Identification Number
               ------------------------------------------------

I.   Trade and Other Names:

     The Registry, Inc. was formed in Massachusetts on June 10, 1986.  It
     changed its name to Renaissance Worldwide, Inc. on January 7, 1998.

     Renaissance Worldwide, Inc. qualified in Maryland as TRI Consulting, Inc.
     a/k/a The Registry, Inc.  Renaissance Worldwide, Inc. is in the process of
     withdrawing from Maryland.

     There are two d/b/a filings in Newton, Massachusetts: Renaissance
     Worldwide, Inc. d/b/a Renaissance Worldwide - filed 2/5/98 - expires
     2/5/2002 Renaissance Worldwide, Inc. d/b/a Renaissance - filed 2/5/98 -
     expires 2/5/2002

II.  United States Income Tax Identification Number:

     Renaissance Worldwide, Inc.                           04-2920563

Schedule 3.3, Solo Page
<PAGE>

                                 SCHEDULE 3.5
                                      TO
                         PLEDGE AND SECURITY AGREEMENT

                             Intellectual Property
                             ---------------------

<TABLE>
<CAPTION>
===================================================================================================================================
                                                            COPYRIGHTS
===================================================================================================================================
<S>                     <C>                        <C>          <C>               <C>               <C>                 <C>
     Owner of Record    Country of Registration    Copyright    Applications or   Registration or   Expiration          Title
                                                                  Registration       Filing Date       Date
                                                                       No.

None
===================================================================================================================================
</TABLE>

<TABLE>
<CAPTION>
=============================================================================================================================
                                                        COPYRIGHT LICENSES
=============================================================================================================================
<S>                                                         <C>                                <C>
                   Name of Agreement                        Patent                             Date of Agreement
=============================================================================================================================

None
=============================================================================================================================
</TABLE>

<TABLE>
<CAPTION>
===================================================================================================================================
                                                              PATENTS
 <S>                              <C>                 <C>              <C>                <C>               <C>         <C>
      Owner of Record After                               Patent         Application or   Registration or   Issue Date  Expiration
Assignment Agreements are Filed   Country of Origin   Identification    Registration No.   Filing Date      (if known)     Date

None
===================================================================================================================================
</TABLE>

                                  Page 1 of 2
<PAGE>

<TABLE>
<CAPTION>
                                                          PATENT LICENSES
=========================================================================================================================
<S>                <C>                                   <C>                              <C>
                   Name of Agreement                     Patent                           Date of Agreement
=========================================================================================================================

None
=========================================================================================================================
</TABLE>

<TABLE>
<CAPTION>
                                                                      TRADEMARKS
==============================================================================================================================

                                                                                                       Application or
      Owner of Record                      Country of Registration             Trademark              Registration No.
==============================================================================================================================
<S>                                        <C>                             <C>                       <C>
The Registry, Inc. (n/k/a                  USA                             "R THE REGISTRY           Reg. No. 1,792,872
Renaissance Worldwide, Inc.)                                               and design"
==============================================================================================================================
Renaissance Worldwide, Inc.                USA                             "RENAISSANCE"             Appl. No. 75/414,444
(through assignment from The
Registry, Inc.)
==============================================================================================================================
Renaissance Worldwide, Inc.                USA                             "RENAISSANCE"             Appl. No. 75/414,445
(through assignment from The
Registry, Inc.)
==============================================================================================================================
Renaissance Worldwide, Inc.                USA                             "KNOWLEDGE                Appl. No. 75/452,382
                                                                           ENABLED SELLING"
==============================================================================================================================

<CAPTION>
===================================================================================================================================

                                             Filing            Expiration
        Owner of Record                       Date                Date                            Goods

===================================================================================================================================
<S>                                       <C>                 <C>               <C>

The Registry, Inc. (n/k/a                   9/14/93            9/14/2003        Uses relating to personnel recruitment and placement
 Renaissance Worldwide, Inc.)                                                   services.
===================================================================================================================================
Renaissance Worldwide, Inc.                  1/6/98               1/6/08        Uses relating to computer software and services.
(through assignment from The
Registry, Inc.)
===================================================================================================================================
Renaissance Worldwide, Inc.                  1/6/98               1/6/08        Uses relating to management consulting.
(through assignment from The
Registry, Inc.)
===================================================================================================================================
Renaissance Worldwide, Inc.                 3/18/89              3/18/08        Information technology and general business
                                                                                management consulting.
===================================================================================================================================
</TABLE>

<TABLE>
<CAPTION>
===========================================================================================================================
                                                        TRADEMARK LICENSES
===========================================================================================================================
<S>                                                      <C>                              <C>
                   Name of Agreement                     Parties                          Date of Agreement

None
===========================================================================================================================
</TABLE>

                                  Page 2 of 2<PAGE>

                                                                   Exhibit 10.11

                              FIRST AMENDMENT TO
                              ------------------
                     AMENDED AND RESTATED CREDIT AGREEMENT
                     -------------------------------------

     THIS FIRST AMENDMENT TO CREDIT AGREEMENT (this "Amendment"), dated
                                                     ---------
effective as of September 25, 1999, is among RENAISSANCE WORLDWIDE, INC.
("Borrower"), a Massachusetts corporation, each of the banks or other lending
  --------
institutions which is a party hereto (individually, each a "Lender", and
                                                            ------
collectively the "Lenders") and BANK OF AMERICA, N.A., as administrative agent
                  -------
for the Lenders (in such capacity, the "Administrative Agent").
                                        --------------------

                                   RECITALS:

     Borrower, the Administrative Agent and the Lenders have entered into that
certain Amended and Restated Credit Agreement dated as of July 15, 1999 (as
amended, restated, or modified from time to time, the "Credit Agreement").
                                                       ----------------
Borrower, Administrative Agent and the Lenders now desire to amend the Credit
Agreement as set forth herein.

     NOW, THEREFORE, BE IT RESOLVED, THAT, in consideration of the premises
herein contained and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto hereby agree as
follows:

                                   ARTICLE 1

                                  Definitions
                                  -----------

     1.1  Definitions. Capitalized terms used in this Amendment, to the extent
          -----------
          not otherwise defined herein, shall have the same meanings as in the
          Credit Agreement, as amended hereby.

                                   ARTICLE 2

                                  Amendments
                                  ----------

     1.2  Amendment to Section  4.2.
          -------------------------

          (A)  The first sentence of Section 4.2 of the Credit Agreement and the
     table set forth therein are hereby amended to read in their entirety as
     follows:

          Section 4.2   Prior to the receipt of the Applicable Rate Certificate
          -----------
     to be delivered with Borrower's financial statements for the Fiscal Quarter
     ending December 25, 1999, the margins identified in Section 4.1 and the
                                                         -----------
     Commitment Fee Rate shall be as follows: (i) the Libor Rate Margin shall be
     three and one-half percent (3.50%); (ii) the Base Rate Margin shall be two
     and one-quarter percent (2.25%); and (iii) the Commitment Fee Rate shall be
     five-eighths of one percent (0.625%); thereafter, the Libor Rate Margin,
     the Base Rate Margin, and the Commitment Fee Rate shall be determined in
     accordance with the following table:
<PAGE>

     ========================================================================
                                     LIBOR RATE    BASE RATE     COMMITMENT
        LEVERAGE RATIO                 MARGIN        MARGIN       FEE RATE
     ========================================================================

      Less than 0.75 to 1.00            1.50%         0.25%        0.375%
     ------------------------------------------------------------------------
      Greater than or equal to          2.00%         0.75%         0.50%
      0.75 to 1.00 but less
      than 1.75 to 1.00
     ------------------------------------------------------------------------
      Greater than or equal to          2.50%         1.25%         0.50%
      1.75 to 1.00 but less
      than 2.75 to 1.00
     ------------------------------------------------------------------------
      Greater than or equal to          3.00%         1.75%         0.50%
      2.75 to 1.00 but less
      than 3.5 to 1.00
     ------------------------------------------------------------------------
      Greater than or equal to          3.50%         2.25%        0.625%
      3.5 to 1.00
     ========================================================================

          (B)   The penultimate sentence of Section 4.2 of the Credit Agreement
     is hereby amended to read in its entirety as follows:

          If Borrower fails to deliver such Applicable Rate Calculation with
     respect to any Fiscal Quarter which sets forth the Leverage Ratio within
     the period of time required by subsection 10.1(c): (i) the Libor Rate
                                    ------------------
     Margin (for Interest Periods commencing after the applicable Adjustment
     Date) shall automatically be adjusted to three and one-half percent (3.50%)
     per annum; (ii) the Base Rate Margin shall automatically be adjusted to two
     and one-quarter percent (2.25%) per annum; and (iii) the Commitment Fee
     Rate shall automatically be adjusted to five-eighths of one percent
     (0.625%) per annum.

     1.3  Amendment to Section 11.4.  Subsection 11.4(iii) of the Credit
          -------------------------
          Agreement is hereby amended and restated to read in its entirety as
          follows:

          (iii) Borrower may purchase or redeem stock, stock rights, options or
     similar rights not to exceed Fifteen Million Dollars ($15,000,000) in the
     aggregate from the Closing Date through the Termination Date; provided, in
                                                                   --------
     each instance, that (i) after giving effect to any such purchase or
     redemption Borrower will have at least Fifteen Million Dollars
     ($15,000,000) of borrowing availability under both the Borrowing Base and
     the aggregate Revolving Commitments, and (ii) Borrower's Leverage Ratio at
     such time (as evidenced by the Compliance Certificate most recently
     delivered as required by subsection 10.1(c)) is less than 2.50 to 1.00,
                              -------------------
     provided, however, that if Borrower fails to provide a Compliance
     --------  -------
     Certificate within the period required by subsection 10.1(c), Borrower's
                                               ------------------
     Leverage Ratio shall be

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 2
<PAGE>
     deemed to exceed 2.50 to 1.00 until a Compliance Certificate demonstrating
     that such Leverage Ratio is less than 2.50 to 1.00 is delivered to the
     Administrative Agent.

     1.4  Amendment to Section 12.2.  Section 12.2 of the Credit Agreement is
          -------------------------
          hereby amended and restated to read in its entirety as follows:

          Section 12.2   Maximum Total Leverage Ratio. Borrower shall not permit
          ------------   ----------------------------
     its Leverage Ratio at the end of any Fiscal Quarter to exceed (i) 3.95 to
     1.00 for its Fiscal Quarter ending September 25, 1999; (ii) 3.00 to 1.00
     for its Fiscal Quarter ending December 25, 1999; (iii) 3.25 to 1.00 for its
     Fiscal Quarter ending March 25, 2000; (iv) 3.5 to 1.00 for its Fiscal
     Quarter ending June 24, 2000; (v) 3.00 to 1.00 for its Fiscal Quarter
     ending September 30, 2000; or (vi) 2.50 to 1.00 for its Fiscal Quarter
     ending December 28, 2000, or any Fiscal Quarter thereafter. Further, for
     any period that Borrower's Leverage Ratio equals or exceeds 3.00 to 1.00,
     Borrower shall pledge to the Administrative Agent as security for the
     Obligations, pursuant to agreements in form and substance satisfactory to
     the Administrative Agent, an amount in immediately available funds equal to
     the amount by which the Outstanding Revolving Credit of all of the Lenders
     exceeds an amount equal to (i) the Borrowing Base (calculated as if the
     advance rate for Eligible Receivables were 80% rather than 85%) minus (ii)
                                                                     -----
     the outstanding principal amount of the Term Loan, such funds to be held in
     a cash collateral account by the Administrative Agent without any right of
     withdrawal by Borrower unless and until Borrower's Leverage Ratio is less
     than 3.00 to 1.00.

     1.5  Amendment to Section 12.3.  Section 12.3 of the Credit Agreement is
          -------------------------
          hereby amended and restated to read in its entirety as follows:

          Section 12.3   Minimum Fixed Charge Coverage Ratio. As of the end of
          ------------   -----------------------------------
     each Fiscal Quarter, Borrower shall not permit the ratio of (a) its EBITDAR
     for the four (4) Fiscal Quarter period then ending to (b) the sum of (i)
     Interest Expense during such period and (ii) Rental Expense paid during
     such period to be less than (i) 1.50 to 1.00 for the four (4) Fiscal
     Quarter period ending September 25, 1999; (ii) 1.75 to 1.00 for each of the
     four (4) Fiscal Quarter periods ending December 25, 1999, March 25, 2000,
     and June 24, 2000; (iii) 2.00 to 1.00 for the four (4) Fiscal Quarter
     period ending September 30, 2000; or (iv) 2.50 to 1.00 for the four (4)
     Fiscal Quarter period ending December 28, 2000, or any four (4) Fiscal
     Quarter period ending thereafter.

                                   ARTICLE 3

                             Conditions Precedent
                             --------------------

     1.6  Conditions.  The effectiveness of this Amendment is subject to the
          ----------
          satisfaction of the following conditions precedent:

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 3
<PAGE>

          (a)  The representations and warranties contained herein and in all
     other Loan Documents, as amended hereby, shall be true and correct in all
     material respects as of the date hereof as if made on the date hereof,
     except for such representations and warranties limited by their terms to a
     specific date;

          (b)  No Default or Event of Default shall have occurred and be
     continuing;

          (c)  Borrower shall have delivered to the Administrative Agent an
     executed original copy of this Amendment;

          (d)  Borrower shall have delivered to the Administrative Agent, in
     form satisfactory to the Administrative Agent, a revised audit of its
     Borrowing Base;

          (e)  Borrower shall have paid to the Administrative Agent and each
     Lender executing this Amendment all fees, costs and expenses owed to and/or
     incurred by each of the Administrative Agent and each such Lender arising
     in connection with this Amendment, including, without limitation, (i) an
     amendment fee to each such Lender in an amount equal to twenty-two and one-
     half (22.5) basis points of the amount of each such Lender's Commitments,
     and (ii) the reasonable fees, costs and expenses of the Administrative
     Agent's legal counsel, Jenkens & Gilchrist, a Professional Corporation; and

          (f)  All proceedings taken in connection with the transactions
     contemplated by this Amendment and all documentation and other legal
     matters incident thereto shall be satisfactory to (i) the Administrative
     Agent, (ii) the Required Lenders and (iii) the Administrative Agent's legal
     counsel, Jenkens & Gilchrist, a Professional Corporation.

                                   ARTICLE 4

                 Ratifications, Representations and Warranties
                 ---------------------------------------------

     1.7  Ratifications.  The terms and provisions set forth in this Amendment
          -------------
          shall modify and supersede all inconsistent terms and provisions set
          forth in the Credit Agreement and, except as expressly modified and
          superseded by this Amendment, the terms and provisions of the Credit
          Agreement and the other Loan Documents are ratified and confirmed and
          shall continue in full force and effect. Borrower, the Administrative
          Agent and the Lenders agree that the Credit Agreement as amended
          hereby and the other Loan Documents shall continue to be legal, valid,
          binding and enforceable in accordance with their respective terms.

     1.8  Representations and Warranties.  Borrower hereby represents and
          ------------------------------
          warrants to the Administrative Agent and the Lenders that (i) the
          execution, delivery and performance of this Amendment and any and all
          other Loan Documents executed and/or delivered in connection herewith
          have been authorized by all requisite action on the part of Borrower
          and will not violate the articles of incorporation or bylaws of
          Borrower; (ii) the representations and warranties contained in the
          Credit

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 4
<PAGE>

          Agreement, as amended hereby, and any other Loan Document are true and
          correct on and as of the date hereof as though made on and as of the
          date hereof (except to the extent that such representations and
          warranties were expressly, in the Credit Agreement, made only in
          reference to a specific date); (iii) after giving effect to this
          Amendment, no Default or Event of Default has occurred and is
          continuing; and (iv) Borrower is in full compliance with all covenants
          and agreements contained in the Credit Agreement, as amended hereby,
          and the other Loan Documents.

                                   ARTICLE 5

                                 Miscellaneous
                                 -------------

     1.9  Survival of Representations and Warranties.  All representations and
          ------------------------------------------
          warranties made in this Amendment or any other Loan Document including
          any Loan Document furnished in connection with this Amendment shall
          survive the execution and delivery of this Amendment and the other
          Loan Documents, and no investigation by the Administrative Agent or
          any Lender shall affect the representations and warranties or the
          right of the Administrative Agent or any Lender to rely upon them.

     1.10 Reference to Credit Agreement.  Each of the Loan Documents, including
          -----------------------------
          the Credit Agreement and any and all other agreements, documents, or
          instruments now or hereafter executed and delivered pursuant to the
          terms hereof or pursuant to the terms of the Credit Agreement as
          amended hereby, are hereby amended so that any reference in such Loan
          Documents to the Credit Agreement shall mean a reference to the Credit
          Agreement as amended hereby.

     1.11 Severability.  Any provision of this Amendment held by a court of
          ------------
          competent jurisdiction to be invalid or unenforceable shall not impair
          or invalidate the remainder of this Amendment and the effect thereof
          shall be confined to the provision so held to be invalid or
          unenforceable.

     1.12 Applicable Law.  THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED IN
          --------------
          ACCORDANCE WITH THE LAWS OF THE COMMONWEALTH OF MASSACHUSETTS AND THE
          APPLICABLE LAWS OF THE UNITED STATES OF AMERICA.

     1.13 Successors and Assigns.  This Amendment is binding upon and shall
          ----------------------
          inure to the benefit of the Administrative Agent, the Lenders, and
          Borrower and their respective successors and assigns, except Borrower
          may not assign or transfer any of its rights or obligations hereunder
          without the prior written consent of all the Lenders.

     1.14 Counterparts.  This Amendment may be executed in one or more
          ------------
          counterparts, and on telecopy counterparts each of which when so
          executed shall be deemed to be an original, but all of which when
          taken together shall constitute one and the same agreement.

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 5
<PAGE>

     1.15 Effect of Waiver.  No consent or waiver, express or implied, by the
          ----------------
          Administrative Agent or any Lender to or for any breach of or
          deviation from any covenant, condition or duty by Borrower or any Loan
          Party shall be deemed a consent or waiver to or of any other breach of
          the same or any other covenant, condition or duty.

     1.16 Headings.  The headings, captions, and arrangements used in this
          --------
          Amendment are for convenience only and shall not affect the
          interpretation of this Amendment.

     1.17 ENTIRE AGREEMENT.  THIS AMENDMENT AND ALL OTHER INSTRUMENTS, DOCUMENTS
          ----------------
          AND AGREEMENTS EXECUTED AND DELIVERED IN CONNECTION WITH THIS
          AMENDMENT EMBODY THE FINAL, ENTIRE AGREEMENT AMONG THE PARTIES HERETO
          AND SUPERSEDE ANY AND ALL PRIOR COMMITMENTS, AGREEMENTS,
          REPRESENTATIONS AND UNDERSTANDINGS, WHETHER WRITTEN OR ORAL, RELATING
          TO THIS AMENDMENT, AND MAY NOT BE CONTRADICTED OR VARIED BY EVIDENCE
          OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OR DISCUSSIONS
          OF THE PARTIES HERETO. THERE ARE NO ORAL AGREEMENTS AMONG THE PARTIES
          HERETO.

               [Remainder of this page intentionally left blank]

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 6
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Amendment effective as of the date first written above.

                                   BORROWER:
                                   --------

                                   RENAISSANCE WORLDWIDE, INC.

                                   By:   /s/ Richard L. Bugley
                                      ------------------------------------------
                                   Name:     Richard L. Bugley
                                        ----------------------------------------
                                   Title:  VP and General Counsel
                                         ---------------------------------------

                                   LENDERS:
                                   -------

                                   BANK OF AMERICA, N.A.,
                                   as the Administrative Agent and as a Lender

                                   By:   /s/ Fred L. Thorne
                                      ------------------------------------------
                                   Name:     Fred L. Thorne
                                        ----------------------------------------
                                   Title:   Managing Director
                                         ---------------------------------------

                                   GMAC COMMERCIAL CREDIT LLC (formerly
                                   BNY Factoring LLC),
                                   as the Syndication Agent and as a Lender

                                   By:   /s/ Frank Imperato
                                      ------------------------------------------
                                   Name:     Frank Imperato
                                        ----------------------------------------
                                   Title:_______________________________________

                                   CITIZENS BANK OF MASSACHUSETTS

                                   By:   /s/ William F. Granchelli
                                      ------------------------------------------
                                   Name:     William F. Granchelli
                                        ----------------------------------------
                                   Title:   Senior Vice President
                                         ---------------------------------------

                                   THE CIT GROUP / BUSINESS CREDIT, INC.

                                   By:   /s/ Eric Maloy
                                      ------------------------------------------
                                   Name:     Eric Maloy
                                        ----------------------------------------
                                   Title:   AVP/AE
                                         ---------------------------------------

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 7
<PAGE>

                                   DEBIS FINANCIAL SERVICES, INC.

                                   By:   /s/ James M. Vandervalk
                                      ------------------------------------------
                                   Name:     James M. Vandervalk
                                        ----------------------------------------
                                   Title:   President, ABL Division
                                         ---------------------------------------

                                   FINOVA CAPITAL CORPORATION

                                   By:   /s/ Brian Rujawitz
                                      ------------------------------------------
                                   Name:     Brian Rujawitz
                                        ----------------------------------------
                                   Title:   AVP
                                         ---------------------------------------

                                   NATIONAL BANK OF CANADA

                                   By:   /s/ A. Keith Broyles
                                      ------------------------------------------
                                   Name:     A. Keith Broyles
                                        ----------------------------------------
                                   Title:   Vice President & Manager
                                         ---------------------------------------

                                   PNC BUSINESS CREDIT

                                   By:   /s/ Wing C. Louie
                                      ------------------------------------------
                                   Name:     Wing C. Louie
                                        ----------------------------------------
                                   Title:   Vice President
                                         ---------------------------------------

                                   WEBSTER BANK

                                   By:   /s/ Charles C. Thomas
                                      ------------------------------------------
                                   Name:     Charles C. Thomas
                                        ----------------------------------------
                                   Title:   Vice President
                                         ---------------------------------------

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 8
<PAGE>

          REAFFIRMATION OF GUARANTY AND PLEDGE AND SECURITY AGREEMENT
          -----------------------------------------------------------

     Each of the undersigned hereby (i) consents to the execution and delivery
of the First Amendment to Amended and Restated Credit Agreement to which this
Reaffirmation of Guaranty and Pledge and Security Agreement is attached (the
"Amendment") by the parties thereto, (ii) agrees that the Amendment shall not
 ---------
limit or diminish the obligations of each of the undersigned under that certain
Subsidiary Guaranty dated as of July 15, 1999 (as amended, the "Guaranty"), or
                                                                --------
under that certain Pledge and Security Agreement dated as of July 15, 1999 (as
amended, the "Pledge and Security Agreement"), executed or joined in by each of
              -----------------------------
the undersigned and delivered to the Administrative Agent, (iii) reaffirms its
obligations under each of the Guaranty and the Pledge and Security Agreement,
and (iv) agrees that each of the Guaranty and the Pledge and Security Agreement
remains in full force and effect and is hereby ratified and confirmed.

Dated effective as of September 30, 1999.

                            COBA GROUP, U.S.A., LTD.
                            THE HUNTER GROUP, INC.
                            THE HUNTER GROUP INTERNATIONAL, INC.
                            THE MANAGEMENT DECISIONS GROUP, INC.
                            NEOGLYPHICS MEDIA CORPORATION
                            RENAISSANCE GOVERNMENT SOLUTIONS, INC.
                            THE REGISTRY INC. NETWORK CONSULTING PRACTICE
                            RENAISSANCE WORLDWIDE INTERNATIONAL HOLDINGS, INC.
                            RENAISSANCE WORLDWIDE IT CONSULTING SERVICES, INC.
                            RENAISSANCE WORLDWIDE STRATEGY, INC.
                            STERLING INFORMATION GROUP, INC.
                            TECHNOMIC CONSULTANTS, INC.
                            TRI SECURITIES CORP.

                            By:   /s/ Richard L. Bugley
                               ------------------------------------------------
                            Name:     Richard L. Bugley
                                 ----------------------------------------------
                            Title:  Vice President and General Counsel for
                                    each of the foregoing

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 9
<PAGE>

                              ARI NATIONAL COMPANY

                              By:   /s/ Richard L. Bugley
                                 -----------------------------------------------
                              Name:     Richard L. Bugley
                                   ---------------------------------------------
                              Title:  Sole Trustee

                              This Reaffirmation of Guaranty and Pledge and
                              Security Agreement is executed on behalf of ARI
                              National Company by its sole trustee as sole
                              trustee and not individually, and the obligations
                              of ARI National Company hereunder are not binding
                              upon any of ARI National Company's sole trustee,
                              officers or shareholders or any of them
                              individually but are binding only upon the assets
                              and property of ARI National Company. The
                              Agreement and Declaration of Trust of ARI National
                              Company is on file with the Secretary of the
                              Commonwealth of Massachusetts.

FIRST AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, Page 10

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