Exhibit 32.1

CERTIFICATION OF THE

PRINCIPAL EXECUTIVE 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 on Form 10-Q of SIM Acquisition Corp. I (the “Company”) for the quarterly period ended June 30, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Erich Spangenberg, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my 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; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of and for the period covered by the Report.

Date: August 23, 2024	By:	/s/ Erich Spangenberg
		Erich Spangenberg
		Chief Executive Officer
		(Principal Executive Officer)