July 3, 2025 Michael Blend Chief Executive Officer System1, Inc. 4235 Redwood Avenue Los Angeles, CA 90066 Re: System1, Inc. Registration Statement on Form S-3 Filed June 27, 2025 File No. 333-288380 Dear Michael Blend: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. 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. Please contact Alexandra Barone at 202-551-8816 with any questions. Sincerely, Division of Corporation Finance Office of Technology cc: Brent Epstein, Esq.