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                                                                    EXHIBIT 31.1

   CERTIFICATION PURSUANT TO RULE 13A-14(A) OF THE SECURITIES EXCHANGE ACT OF
   1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, William C. Brown, President and Chief Executive Officer of TechTeam Global,
Inc., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of TechTeam Global, Inc.
(the "Company");

2. Based on my knowledge, this Quarterly 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 report;

3. Based on my knowledge, the financial statements, and other financial
information included in this Quarterly Report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
Company as of, and for, the periods presented in this report:

4. The Company's other certifying officer 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 controls over financial reporting
(as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and
we 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
          Company, 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)  designed such internal controls over financial reporting, or caused
          such internal controls over financial reporting to be designed under
          our supervision, to provide reasonable assurance regarding the
          reliability of financial reporting and the preparation of financial
          statements for external purposes in accordance with generally accepted
          accounting principles;

     (c)  evaluated the effectiveness of the Company'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

     (d)  disclosed in this report any change in the Company's internal controls
          over financial reporting that occurred during the Company's most
          recent fiscal quarter that has materially affected, or is reasonably
          likely to materially affect, the Company's internal controls over
          financial reporting; and

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

     (a)  all significant deficiencies and material weaknesses in the design or
          operation of internal controls over financial reporting which are
          reasonably likely to adversely affect the Company's ability to record,
          process, summarize and report financial information; and

     (b)  any fraud, whether or not material, that involves management or other
          employees who have a significant role in the registrant's internal
          control over financial reporting.


Date: May 10, 2006                      /s/ William C. Brown
                                        ----------------------------------------
                                        William C. Brown
                                        President and Chief Executive Officer