Exhibit 23.1

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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We have issued our report dated December 30, 2024, with respect to the consolidated financial statements included in the Annual Report of Innovative Solutions and Support, Inc. on Form 10-K for the year ended September 30, 2024. We consent to the incorporation by reference of said report in the Registration Statements of Innovative Solutions and Support, Inc. on Form S-3 (File No. 333-267595) and Forms S-8 (File No. 333-163712 and File No. 333-235689).

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