Operational for more than 40 years, Willdan is one of the leading providers of outsourced services for public agencies in California. The company provides homeland security, disaster preparedness, water conservation, and civil and geotechnical engineering solutions. It operates Willdan Resource Solutions, which offers environmental consultation, construction and remediation services. Willdan also owns and operates Willdan Management Consulting. The company additionally provides assessment, auditing, waste management, and soil and groundwater investigation solutions. It has several locations in Arizona, Florida, Maryland, New York and Texas. Willdan, also known as the Willdan Group, provides energy management and information technology services through Intergy Corporation.