EX-32.1

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 Quarterly Report of Northern Star Investment Corp. IV (the “Company”) on Form 10-Q for the quarterly period ended December 31, 2021, as filed with the Securities and Exchange Commission (the “Report”), I, Joanna Coles, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as added by §906 of the Sarbanes-Oxley Act of 2002, that:

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

To my knowledge, 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.

Dated: February 14, 2022

/s/ Joanna Coles

Joanna Coles

Chief Executive Officer

(Principal Executive Officer)