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Exhibit 31.3

CERTIFICATION PURSUANT TO

RULE 13a-14(a)/15d-14(a)

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Janice Sears, certify that:

1.I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K (the “Amendment”) of Sonder Holdings Inc. (the “Registrant”);

2.Based on my knowledge, this Amendment does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Amendment.

Date: August 5, 2025						/s/ Janice Sears
						Janice Sears
						Interim Chief Executive Officer
						(Principal Executive Officer)