EXHIBIT 99.1 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the filing of the Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2002 (the "Report"), by SPAR GROUP, INC. (the "Registrant"), the undersigned hereby certifies that, to the best of his knowledge: 1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, as applicable; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Registrant. /s/ Robert G. Brown ---------------------------------------- Robert G. Brown, Chairman, President and Chief Executive Officer