Exhibit 32.1

CERTIFICATIONS OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Each of the undersigned hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report on Form 10-Q of Tenable Holdings, Inc. for the fiscal quarter ended September 30, 2020 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of Tenable Holdings, Inc.

Date:	October 28, 2020	By:	/s/ Amit Yoran
			Amit Yoran
			Chairman and Chief Executive Officer
			(Principal Executive Officer)
Date:	October 28, 2020	By:	/s/ Stephen A. Vintz
			Stephen A. Vintz
			Chief Financial Officer
			(Principal Financial Officer and Principal Accounting Officer)