Innovative Solutions and Support (ISSC) 10-K 2005 FY Annual report

Exhibit 32.1

CERTIFICATION 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 Annual Report of Innovative Solutions and Support, Inc. (the “Company”) on Form 10-K for the period ending September 30, 2005 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ GEOFFREY S. M. HEDRICK

Geoffrey S. M. Hedrick

Chairman of the Board and Chief Executive Officer

December 12, 2005

/s/ JAMES J. REILLY

James J. Reilly

Chief Financial Officer

December 12, 2005