EXHIBIT 23.1 -- CERTIFICATION

Each of the undersigned hereby certifies, for the purposes of section 1350 of
chapter 63 of title 18 of the United States Code, as adopted pursuant to Section
906 of the Sarbanes-Oxley Act of 2002, in his or her capacity as an officer of
TechTeam Global, Inc. ("TechTeam"), that, to his or her knowledge, the Annual
Report for the TechTeam 401(k) Savings Plan on Form 11-K for the period ended
December 31, 2002, fully complies with the requirements of Section 13(a) of the
Securities Exchange Act of 1934 and that the information contained in such
report fairly presents, in all material respects the net assets available for
benefits and changes in net assets available for benefits of the Plan. This
written statement is being furnished to the Securities and Exchange Commission
as an exhibit to such Form 11-K. A signed original of this statement has been
provided to TechTeam and will be retained by TechTeam and furnished to the
Securities and Exchange Commission or its staff upon request.



Dated:   June 26, 2003              By: /s/ William F. Coyro, Jr.
                                       --------------------------
                                    William F. Coyro, Jr.
                                    President and Chief Executive Officer


Dated:   June 26, 2003              By: /s/ Heidi K. Hagle
                                      ---------------------------
                                    Heidi K. Hagle
                                    Vice President of Human Resources