EXHIBIT 32.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report of Amistar Corporation ("the Company") on Form 10-QSB for the period ended March 30, 2006, as filed with the Securities and Exchange Commission on the date hereof (the Report), I Stuart C. Baker Chairman and Chief Executive Officer of the Company, certify, pursuant to 19 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge: (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition, results of operations, and cash flows of the Company. Dated: May 22, 2006 By: /s/ Stuart C. Baker ------------------- Name: Stuart C. Baker Title: President and Chief Executive Officer In connection with the Quarterly Report of Amistar Corporation ("the Company") on Form 10-QSB for the period ended September 30, 2005, as filed with the Securities and Exchange Commission on the date hereof (the Report), I Gregory D. Leiser Chief Financial Officer of the Company, certify, pursuant to 19 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge: (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition, results of operations, and cash flows of the Company. Dated: May 22, 2006 By: /s/ Gregory D. Leiser --------------------- Name: Gregory D. Leiser Title: Chief Financial Officer 23