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                                                                    EXHIBIT 31.1

                    CERTIFICATION PURSUANT TO SECTION 302 OF
                         THE SARBANES-OXLEY ACT OF 2002

I, William F. Coyro, Jr., President and Chief Executive Officer of TechTeam
Global, Inc., certify that:

1. I have reviewed this Annual Report on Form 10-K of TechTeam Global, Inc.;

2. Based on my knowledge, this Annual Report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this Annual
Report;

3. [Intentionally omitted];

4. The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial
reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the
registrant and have:

   (a)   Designed such disclosure controls and procedures, or caused such
         disclosure controls and procedures to be designed under our
         supervision, to ensure that material information relating to the
         registrant, including its consolidated subsidiaries, is made known to
         us by others within those entities, particularly during the period in
         which this report is being prepared;

   (b)   Evaluated the effectiveness of the registrant's disclosure controls and
         procedures and presented in this report our conclusions about the
         effectiveness of the disclosure controls and procedures, as of the end
         of the period covered by this report based on such evaluation; and

   (c)   Disclosed in this report any change in the registrant's internal
         control over financial reporting that occurred during the registrant's
         most recent fiscal quarter (the registrant's fourth fiscal quarter in
         the case of an annual report) that has materially affected, or is
         reasonably likely to materially affect, the registrant's internal
         control over financial reporting; and

5. The registrant's other certifying officers and I have disclosed, based on our
most recent evaluation, to the registrant's auditors and the audit committee of
registrant's board of directors (or persons performing the equivalent
functions):

   (a)   all significant deficiencies in the design or operation of internal
         controls which could adversely affect the registrant's ability to
         record, process, summarize and report financial data and have
         identified for the registrant's auditors any material weaknesses in
         internal controls; and

   (b)   any fraud, whether or not material, that involves management or other
         employees who have a significant role in the registrant's internal
         controls; and

6. The registrant's other certifying officers and I have indicated in this
Annual Report whether or not there were significant changes in internal controls
or in other factors that could significantly affect internal controls subsequent
to the date of our most recent evaluation, including any corrective actions with
regard to significant deficiencies and material weaknesses.



Date: July 15, 2005                       /s/ William F. Coyro, Jr.
                                        ----------------------------------
                                        William F. Coyro, Jr.