Exhibit 23.1

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM'S CONSENT

We consent to the inclusion in this Registration Statement of SpringBig Holdings, Inc. on Form S-1 of our report dated April 1, 2024, with respect to our audits of the consolidated financial statements of SpringBig Holdings, Inc. as of December 31, 2023 and 2022 and for the years ended December 31, 2023 and 2022, which report appears in the Prospectus, which is part of this Registration Statement. We were dismissed as auditors on April 9, 2024, and, accordingly, we have not performed any audit or review procedures with respect to any financial statements appearing in such Prospectus for the periods after the date of our dismissal. We also consent to the reference to our Firm under the heading “Experts” in such Prospectus.

/s/ Marcum LLP

Marcum LLP

Fort Lauderdale, Florida

June 18, 2024