Willdan Group, Inc., a technical services company, focuses on the provision of energy and infrastructure solutions in the United States and Canada. The company operates in two segments: Energy, and Engineering and Consulting. The Energy segment offers in-depth energy planning studies, economic analysis, modeling and forecasting software, decarbonization, program design and implementation, energy efficiency, turnkey energy and infrastructure projects, grid modernization, and utility-scale electrical engineering and construction management services. It serves investor-owned and municipal utilities, as well as investors and hyperscalers, and state and local governments. The Engineering and Consulting segment provides municipal and civil engineering, building and safety, code enforcement, fire plan and inspection, city engineering, construction management, design engineering, planning, and financial and municipal advisory services. It serves state and local governments, school districts, and utility districts. The company was founded in 1964 and is headquartered in Anaheim, California.