Willdan Group, Inc. engages in the provision of technical and consulting services. It operates through the Energy and the Engineering and Consulting segments. The Energy segment offers energy and sustainability consulting services to utilities, public agencies and private industry. The Engineering and Consulting segment provides civil engineering-related construction management, building and safety, city engineering office management, city planning, civil design, geotechnical, material testing and other engineering consulting services. The company was founded in May 1964 and is headquartered in Anaheim, CA.