Willdan Group, Inc., including its various subsidiaries, offers a wide array of expert, technical, and advisory services, primarily concentrating its operations within the United States. The company's business activities are structured into two main divisions: Energy, and Engineering and Consulting. The Energy segment delivers a comprehensive suite of services, which includes detailed audits and assessments, the creation of strategic programs, master planning, efforts to reduce energy demand, optimization of electrical grids, benchmarking studies, engineering design, supervision of construction, performance-based contracting, installation services, innovative financing solutions, and thorough measurement and verification. This division also provides advanced software and data analytics capabilities. Concurrently, the Engineering and Consulting segment furnishes solutions related to building and safety, urban engineering, code enforcement, thorough review and inspection of development plans, disaster recovery efforts, geotechnical and earthquake engineering, urban planning and surveying, offering contract staff support, project and construction management, structural engineering, transportation and traffic system engineering, and water resource management. Additionally, this segment provides administrative services for districts, financial advisory, federal regulatory compliance assistance, and specialized communications and technology solutions. Willdan serves a broad spectrum of clients, encompassing numerous public and governmental bodies like cities, counties, redevelopment authorities, water districts, school systems, and universities. Its clientele also extends to investor-owned and publicly managed energy utilities, state and federal government agencies, commercial and industrial enterprises, alongside various other specialized districts and organizations. The company, which was founded in 1964, has its headquarters located in Anaheim, California.