Willdan Group, Inc. is a technical services company focused on energy and infrastructure solutions. The Company’s segments include Energy and Engineering and Consulting. Its Energy segment addresses power grid resiliency, efficiency, and reliability. Services include 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. Its Engineering & Consulting segment addresses sustainability and growth in civil infrastructure. It often serves as a municipality's engineering department. Services include 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.