EX-32.3 7 clmb-20240331xex32d3.htm EX-32.3

Exhibit 32.3

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CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

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In connection with the Quarterly Report of Climb Global Solutions, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Matthew Sullivan, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

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

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

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/s/ Matthew Sullivan | ​
Matthew Sullivan | ​
Vice President and Chief Accounting Officer | ​
(Principal Accounting Officer) | ​
May 2, 2024 | ​

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A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by Company and furnished to the Securities and Exchange Commission or its staff upon request.