Document:

<PAGE>

                                                                  EXECUTION COPY

                                                                   EXHIBIT 10.21

                      AMENDMENT NO. 1 TO PURCHASE AGREEMENT

         This AMENDMENT NO.1 TO PURCHASE AGREEMENT, is made and entered into as
of August 1, 2003 (the "Amendment"), by and among MSX INTERNATIONAL, INC., a
Delaware corporation, (the "Company"), MSX INTERNATIONAL LIMITED, a wholly owned
subsidiary of MSXI ("MSXI Limited" and together with the Company the "Issuers"),
and Jefferies & Company, Inc. a Delaware corporation (the "Initial Purchaser").

                                    RECITALS:

         WHEREAS, the Issuers and the Initial Purchaser entered into the
Purchase Agreement dated as of July 25, 2003 (the "Purchase Agreement") whereby
the Issuers proposed and agreed to sell to the Initial Purchaser $75,500,000
aggregate principal amount of 11% Senior Secured Note Units due 2007 (each a
"Unit" and, collectively, the "Units"), each Unit consisting of $860 principal
amount of 11% Senior Secured Notes due 2007 issued by the Company (the "U.S.
Notes") and $140 principal amount of 11% Senior Secured Notes due 2007 issued by
MSXI Limited (the "U.K. Notes" and, together with the U.S. Notes, the "Notes");

         WHEREAS the Initial Purchaser agreed to purchase from the Issuers, the
Units at a purchase price of 96.144% of the aggregate principal amount thereof;

         WHEREAS the parties hereto wish to amend the Purchase Agreement;

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein contained, the parties hereto agree as follows:

         SECTION 1. Definitions. As used herein, capitalized terms which are
defined in the preamble hereto shall have the meanings as so defined, and
capitalized terms not so defined shall have the meanings set forth in the
Purchase Agreement.

         SECTION 2. Amendment to Section 13(c) of the Purchase Agreement. The
following section is hereby amended by deleting the language from 13(c) in its
entirety and replacing it with the following:

(c)      THE VALIDITY AND INTERPRETATION OF THIS AGREEMENT, AND THE TERMS AND
         CONDITIONS SET FORTH HEREIN SHALL BE GOVERNED BY AND CONSTRUED IN
         ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO
         CONTRACTS MADE AND TO BE PERFORMED WHOLLY THEREIN, WITHOUT REGARD TO
         PRINCIPLES OF CONFLICTS OF LAW.

         Each of the Issuers hereby submits to the non-exclusive jurisdiction of
         the Federal and state courts in the Borough of Manhattan in The City of
         New York in any suit or proceeding arising out of or relating to this
         Agreement or the transactions contemplated hereby. MSXI Limited has, by
         a separate written instrument, irrevocably appointed the Company, as
         its authorized agent upon which process may be served in any such suit
         or proceeding, and agrees that service of process upon such agent, and
         written notice of said service to MSXI Limited, by the person serving
         the same to MSX International, Inc. 22355 West Eleven Mile Road,
         Southfield, MI 48034, shall be deemed in every respect
<PAGE>

         to effect service of process upon MSXI Limited in any such suit or
         proceeding. MSXI Limited further agrees to take any and all action as
         may be necessary to maintain such designation and appointment of such
         agent in full force and effect for a period of seven years from the
         date of this Agreement.

         The obligation of MSXI Limited in respect of any sum due Initial
         Purchaser shall, notwithstanding any judgment in a currency other than
         United States dollars, not be discharged until the first business day,
         following receipt by Initial Purchaser of any sum adjudged to be so due
         in such other currency, on which (and only to the extent that) Initial
         Purchaser may in accordance with normal banking procedures purchase
         United States dollars with such other currency; if the United States
         dollars so purchased are less than the sum originally due to Initial
         Purchaser hereunder, MSXI Limited agrees, as a separate obligation and
         notwithstanding any such judgment, to indemnify Initial Purchaser
         against such loss. If the United States dollars so purchased are
         greater than the sum originally due to Initial Purchaser hereunder,
         Initial Purchaser agrees to pay to the MSXI Limited an amount equal to
         the excess of the dollars so purchased over the sum originally due
         Initial Purchaser hereunder.

         SECTION 3. Representations and Warranties. In order to induce the
parties hereto to enter into this Amendment, each of the parties hereto
represents and warrants unto the other parties hereto as set forth in this
Section 3:

(a)                 The execution, delivery and performance by such party of
         this Amendment are within its powers, have been duly authorized by all
         necessary action, and do not: (i) contravene its organizational
         documents; or (ii) contravene any contractual restriction, law or
         governmental regulation or court decree or order binding on or
         affecting it; and

(b)                 This Amendment constitutes the legal, valid and binding
         obligation of such party enforceable against such party in accordance
         with its terms, subject to applicable bankruptcy, insolvency and
         similar laws affecting creditors' rights and general equitable
         principles.

         SECTION 4. Binding Effect; Ratification.

(a)                 This Amendment shall become effective, as of the date first
         set forth above, when counterparts hereof shall have been executed and
         delivered by the parties hereto, and thereafter shall be binding on the
         parties hereto and their respective successors and assigns.

(b)                 On and after the execution and delivery hereof, this
         Amendment shall be a part of the Purchase Agreement amended hereby and
         each reference in the Purchase Agreement to "this Agreement" or
         "hereof", "hereunder" or words of like import, and each reference in
         any other agreement to the Purchase Agreement shall mean and be a
         reference to the Purchase Agreement as amended hereby.

(c)                 Except as expressly amended hereby, the Purchase Agreement
         shall remain in full force and effect and is hereby ratified and
         confirmed by the parties hereto.

                                       2
<PAGE>

         SECTION 5. Miscellaneous.

(a)      Headings used herein are for convenience of reference only and shall
         not affect the meaning of this Amendment or any provision hereof.

(b)      This Amendment may be executed in any number of counterparts, and by
         the parties hereto on separate counterparts, each of which when
         executed and delivered shall be deemed to be an original and all of
         which taken together shall constitute one and the same agreement.

(c)      Executed counterparts of this Amendment may be delivered
         electronically.

                             [SIGNATURES TO FOLLOW]

                                       3
<PAGE>

         IN WITNESS WHEREOF, the parties have executed this Amendment by their
respective officers thereunto duly authorized as of the date first above
written.

                                    MSX International, Inc.

                                    By: /s/ Frederick K. Minturn
                                        ----------------------------------------
                                    Name:  Frederick K. Minturn
                                    Title: Executive Vice President & Chief
                                           Financial Officer

                                    MSX International Limited

                                    By:/s/ Frederick K. Minturn
                                       -----------------------------------------
                                    Name:  Frederick K. Minturn
                                    Title: Director

                                                 Amendment to Purchase Agreement

                                      S-1
<PAGE>

                                    JEFFERIES & COMPANY, INC.

                                    By: /s/ Douglas R. Speegle
                                        ----------------------------------------
                                    Name:  Douglas R. Speegle
                                    Title: Managing Director

                                                 Amendment to Purchase Agreement

                                      S-2<PAGE>
                                                                   EXHIBIT 10.22

                                 AMENDMENT NO. 1

                                       TO

                  AMENDED AND RESTATED STOCKHOLDERS' AGREEMENT

                  This Amendment No. 1 (this "Amendment"), effective as of
January 31, 2003, to the Amended and Restated Stockholders' Agreement (the
"Agreement") effective as of November 28, 2000 by and among MSX INTERNATIONAL
INC., a Delaware corporation (the "Company"), Court Square Capital Limited, a
Delaware corporation ("Court Square"), each of the individuals or entities whose
name appears on the signature pages hereto under the heading "Management Group"
(individually, a "Management Group Member" and, collectively, the "Management
Group"), each of the individuals or entities whose name appears on the signature
pages hereto under the heading "CVC Group" (individually, a "CVC Stockholder"
and, collectively, the "CVC Stockholders") and each of the other individuals
whose name appears on the signature pages hereto. Capitalized terms are used as
defined in Article I of the Agreement.

                                    RECITALS

                  WHEREAS, certain of the Stockholders, certain former
stockholders of the Company and the Company entered into a Stockholders'
Agreement, dated as of January 3, 1997, as amended (the "Original Agreement"),
to regulate certain aspects of their relationship and to provide for, among
other things, restrictions on the transfer or other disposition of securities of
the Company and matters relating to the corporate governance of the Company and
its Subsidiaries;

                  WHEREAS, in connection with the transfer of shares of Common
Stock and Series A Preferred by MascoTech, Inc., a Delaware corporation, to
Court Square pursuant to a Stock Purchase Agreement, dated as of August 1, 2000,
by and between CVC and MascoTech, as amended, and the transfer of shares of
Common Stock and Series A Preferred by CVC to Court Square pursuant to a Stock
Purchase Agreement, dated as of November 28, 2000, by and between CVC and Court
Square, the Stockholders and the Company amended and restated the Original
Agreement, all in accordance with Section 7.2 of the Original Agreement; and

                  WHEREAS, in connection with the Transfer of shares of Common
Stock and Series A Preferred by one of the Institutional Stockholders, each of
the Company and certain of the Institutional Stockholders desire to amend a
provision of the Agreement, in accordance with Section 7.2 of the Agreement.

                  NOW, THEREFORE, the parties hereto hereby agree as follows:

<PAGE>

                                   ARTICLE 1

                               CERTAIN DEFINITIONS

         1.1 Defined Terms.

                  (a) The term "Permitted Transferee" in the Agreement shall be
deleted in its entirety and replaced with the following:

                  "Permitted Transferee" means:

                           (i) with respect to any Stockholder who is a natural
         person, (A) the spouse or any lineal descendant (including by adoption
         and stepchildren) of such Stockholder, (B) any trust of which such.
         Stockholder is the trustee and which is established solely for the
         benefit of any of the foregoing individuals and whose terms are not
         inconsistent with the terms of this Agreement, (C) the estate of such
         Stockholder established by reason of such Stockholder's death, (D) any
         corporation, limited liability company or partnership, all of the
         interests of which are (or is) owned by one or more of the Persons
         identified in this subparagraph (i), or (E) upon the termination or
         liquidation of any trust, corporation. limited liability company or
         partnership described in this subparagraph (i), to any beneficiary of
         such trust or stockholder of such corporation or member of such limited
         liability company or limited partner or managing general partner of
         such partnership described in this subparagraph (i);

                           (ii) with respect to the estate of any Stockholder,
         any person having the relationship with respect to such Stockholder
         described in clause (A) of such subparagraph (i);

                           (iii) with respect to the Institutional Stockholders,
         (A) any Associate or Affiliate of any such Institutional Stockholder
         and any officer, director or employee of any Institutional Stockholder
         or such Associate or Affiliate, (B) any spouse or lineal descendant
         (including by adoption and stepchildren) of the officers, directors and
         employees referred to in clause (A) above, any trust (where a majority
         in interest of the beneficiaries thereof are any of the persons
         described in this clause (B) and in clause (A) above), corporations or
         partnerships (where a majority in interest of the stockholders or
         limited partners, or where the managing general partner, is one of more
         of the persons described in clause (A) above) and, upon the termination
         or liquidation of any such trust, corporation or partnership described
         in this clause (B), to any beneficiary of such trust or stockholder of
         such corporation or limited partner or managing general partner of such
         partnership described in this clause (B), (C) subject to the provisions
         of Section 2.8 (Institutional Stockholders Accounting Determination),
         and if, after taking commercially reasonable steps, with the
         cooperation of the Company, such Institutional Stockholder is unable to
         restructure its ownership of the Company's securities in a manner which
         avoids an Accounting Determination and which is not materially adverse
         to such Institutional Stockholders, upon the giving of notice to the
         Company that the Institutional

                                       2
<PAGE>

         Stockholders have determined that such Accounting Determination may not
         be avoided, then to any third party in an amount necessary to avoid
         such Accounting Determination, or (D) subject to the provisions of
         Section 2.9 (Institutional Stockholders Regulatory Problem) and if,
         after taking commercially reasonable steps, with the cooperation of the
         Company, such Institutional Stockholder is unable to restructure
         its-ownership of the Company's securities in a manner which avoids a
         Regulatory Problem and which is not materially adverse to such
         Institutional Stockholder, upon the giving of notice to the Company
         that the Institutional Stockholders have determined that such
         Regulatory Problem may not be avoided then to any third party in an
         amount necessary to avoid such Regulatory Problem. For purposes of
         determining a "Permitted Transferee" under Article III of this
         Agreement, the term "Affiliate" shall include, without limitation, any
         limited partnership, limited liability company or other investment
         vehicle that is sponsored or managed (whether through the ownership of
         securities having a majority of the voting power; as a general partner
         or through the management of investments) by Citicorp or its Affiliates
         (defined without giving effect to this sentence) or present or former
         employees of Citicorp or its Affiliates.

                                   ARTICLE 2

                                  MISCELLANEOUS

         2.1 Governing Law. This Amendment shall be governed by and construed in
accordance with the laws of the State of New York, without giving effect to any
choice of law or conflict of law provision or rule that would cause the
application of the laws of any jurisdiction other than the State of New York,
except to the extent that the General Corporation Law of the State of Delaware
applies as a result of the Company being incorporated in the State of Delaware,
in which case such General Corporation Law shall apply.

                           [Signature page to follow]

                                       3
<PAGE>

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

                                        MSX INTERNATIONAL, INC.

                                        By:      /s/ Frederick K. Minturn
                                                 -------------------------------
                                                 Name:  Frederick K. Minturn
                                                 Title: Vice President

                                        COURT SQUARE CAPITAL LIMITED

                                        By:      /s/ Michael A. Delaney
                                                 -------------------------------
                                                 Name:  Michael A. Delaney
                                                 Title: Vice President

                                        MANAGEMENT STOCKHOLDERS

                                        Billig Family Limited Partnership

                                        By:      /s/ E.H. Billig
                                                 -------------------------------
                                                 Name:  E.H. Billig
                                                 Title: Trustee

                                        /s/ Frederick K. Minturn
                                        ----------------------------------------
                                        Frederick K. Minturn

                                        /s/ Thomas Stallkamp
                                        ----------------------------------------
                                        Thomas Stallkamp

                                        ----------------------------------------
                                        John W. Risk

         [Signature Page to Amendment No. 1 to Stockholders' Agreement]

<PAGE>

                             Kyung Ae Bae and Ralph L. Miller, Trustees under
                             Trust Agreement, dated October 16, 1989, between
                             Kyung Ae Bae, Settlor, and Kyung Ae Bae, Trustee

                             By:
                                      ------------------------------------------
                                      Name:
                                      Title:

                             CVC GROUP

                             CCT Partners IV, L.P.

                             By:      /s/ Anthony P. Mirra
                                      -----------------------------------
                                      Name:  Anthony P. Mirra
                                      Title: Secretary, CCT IV Corporation,
                                             General Partner of CCT Partners IV,
                                             L.P.

                             --------------------------------------------
                             Richard M. Cashin

                             Natasha Partnership

                             By:
                                      ------------------------------------------
                                      Name:
                                      Title:

                             63BR Partnership

                             By:
                                      ------------------------------------------
                                      Name:
                                      Title:

                             ---------------------------------------------------
                             Noelle Doumar

                                       5
<PAGE>

                                     /s/ Michael A. Delaney
                                     -------------------------------------------
                                     Michael A. Delaney

                                     Alchemy, L.P.

                                     By:
                                              ----------------------------------
                                              Name:
                                              Title:

                                     Thomas F. McWilliams Flint Trust

                                     By:
                                              ----------------------------------
                                              Name:  Jeanne Blasberg, Trustee

                                     -------------------------------------------
                                     M. Saleem Muqaddam

                                     -------------------------------------------
                                     Joseph Silvestri

                                     -------------------------------------------
                                     David F. Thomas

                                     -------------------------------------------
                                     James A. Urry

                                       6
<PAGE>

                                   CITICORP VENTURE CAPITAL EQUITY
                                   PARTNERS, L.P.

                                   By:      CVC PARTNERS LLC,
                                            its General Partner

                                   By:      CITICORP VENTURE CAPITAL GP
                                            HOLDINGS, LTD.

                                            By:      /s/ Michael A. Delaney
                                                     ---------------------------
                                                     Name:  Michael A. Delaney
                                                     Title: Vice President

                                   CVC EXECUTIVE FUND LLC

                                   By:      CITICORP VENTURE CAPITAL GP
                                            HOLDINGS, LTD.

                                            By:      /s/ Michael A. Delaney
                                                     ---------------------------
                                                     Name:  Michael A. Delaney
                                                     Title: Vice President

                                   CVC/SSB EMPLOYEE FUND, L.P.

                                   By:      CVC PARTNERS LLC,
                                            its General Partner

                                   By:      CITICORP VENTURE CAPITAL GP
                                            HOLDINGS, LTD.

                                            By:      /s/ Michael A. Delaney
                                                     ---------------------------
                                                     Name:  Michael A. Delaney
                                                     Title: Vice President

                                       7
<PAGE>

                                        ADDITIONAL MANAGEMENT
                                        STOCKHOLDERS

                                        ----------------------------------------
                                        Roger Fridholm

                                        ----------------------------------------
                                        Kenneth Sommer

                                        ----------------------------------------
                                        John W. Risk

                                        /s/ Thomas Stallkamp
                                        ----------------------------------------
                                        Thomas T. Stallkamp

                                        ----------------------------------------
                                        Carol Creel

                                        ----------------------------------------
                                        David A. Crittenden

                                        ----------------------------------------
                                        Cynthia Dauphinais

                                        ----------------------------------------
                                        Donald R. Fields

                                        ----------------------------------------
                                        Kevin D. Kyles

                                        ----------------------------------------
                                        Donald A. Leith

                                       8
<PAGE>

                                        ----------------------------------------
                                        Elie Matalon

                                        ----------------------------------------
                                        William R. Risk

                                        ----------------------------------------
                                        Gary Sands

                                        ----------------------------------------
                                        Gary J. Valentz

                                        Bruce S. Wagner Revocable Living Trust

                                        By:
                                                 -------------------------------
                                                 Name:  Bruce S. Wagner

                                        ----------------------------------------
                                        Paul J. Wagner

                                        Billig Family Limited Partnership
                                        By:      /s/ E.H. Billig
                                                 -------------------------------
                                                 Name:  E. H. Billig

                                        L.M. Gardner, L.L.C.

                                        By:
                                                 -------------------------------
                                                 Name:

                                        ----------------------------------------
                                        Richard M. Cashin

                                        /s/ Frederick K. Minturn
                                        ----------------------------------------
                                        Frederick K. Minturn

                                       9

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