EXHIBIT 23.1 -- CONSENT OF ERNST & YOUNG LLP INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in the registration statements (Nos. 333-04731, 333-04733 and 333-52565) on Form S-8 of our report dated February 21, 2003 with respect to the consolidated financial statements of TechTeam Global, Inc. included in the Annual Report (Form 10-K) for the year ended December 31, 2002. /s/ Ernst & Young LLP Detroit, Michigan March 12, 2003 54