Willdan Group, Inc. is a provider of professional technical and consulting services to public agencies at all levels of government, public and private utilities, and commercial and industrial firms. It offers services in four segments: Engineering Services, Energy Efficiency Services, Public Finance Services, and Homeland Security Services. The Company assists its clients with a range of complementary services relating to Engineering and Planning; Energy Efficiency and Sustainability; Economic and Financial Consulting, and National Preparedness and Interoperability. The Company operates its business through a network of offices located primarily in California and New York. The Company also has operations in Arizona Florida, Texas, Washington and Washington, DC.