United States securities and exchange commission logo January 13, 2023 Robert Meyerson Chief Executive Officer and Director C5 Acquisition Corp 1701 Pennsylvania Avenue NW Suite #460 Washington, D.C. 20006 Re: C5 Acquisition Corp Form 10-K for the fiscal year ended December 31, 2021 Filed March 29, 2022 File No. 001-41205 Dear Robert Meyerson: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Real Estate & Construction