United States securities and exchange commission logo January 10, 2024 Richard Schlenker, Jr. Chief Financial Officer Exponent, Inc. 149 Commonwealth Drive Menlo Park, CA 94025 Re: Exponent, Inc. Form 10-K for the Fiscal Year Ended December 30, 2022 File No. 000-18655 Dear Richard Schlenker: 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 Trade & Services