Market Sector

Government & Municipalities

Terraphase provides services to municipalities, counties, and state and federal government and agencies. We are proud to have performed work that improves our communities. We work directly for many governmental entities in the form of on-call contracts or as project-specific assignments, including:


  • Alameda County General Service Agency, California
  • City of Alameda Housing Authority, California
  • City of Cupertino, California (Subcontractor)
  • City of Hayward, California
  • City of Oakland, California
  • City of Pacifica, California
  • City of Pleasant Hill, California
  • City of San Mateo, California
  • City of Vancouver, Washington
  • Clearlake Oaks County Water District
  • Colusa County Transportation Commission
  • Marin Municipal Water District, California
  • Monmouth County, New Jersey
  • Port of Oakland, California
  • Solano County Water Agency, California
  • Town of Danville, California
  • Vancouver Housing Authority, Washington

Federal and State

  • Bonneville Power Administration, Department of Energy, Pacific Northwest
  • California Department of Transportation
  • Maritime Administration, United States Department of Transportation, California
  • United States Coast Guard, Petaluma, California (Subcontractor)
  • United States Department of Energy, Elk Hills Naval Fuel Reserve, California (Subcontractor)
  • United States Army Corps of Engineers, Sacramento District, California (Subcontractor)
  • Lawrence Berkeley National Laboratory
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