United States securities and exchange commission logo March 14, 2024 Kim Early Chief Financial Officer Willdan Group, Inc. 2401 East Katella Avenue, Suite 300 Anaheim, California 92806 Re: Willdan Group, Inc. Registration Statement on Form S-3 Filed March 8, 2024 File No. 333-277798 Dear Kim Early: 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 Jenna Hough at 202-551-3063 with any questions. Sincerely, Division of Corporation Finance Office of Trade & Services