Agencies for whom Gateway Pacific Contractors, Inc has worked
- Arvin-Edison Water Storage District
- Aunt Nellie's Farm Kitchens
- Bighorn Development LLC
- Calleguas Municipal Water District
- California Water Services
- City of American Canyon
- City of Anaheim
- City of Antioch
- City of Banning
- City of California City
- City of Chico
- City of Chino
- City of Coalinga
- City of Colusa
- City of Corona
- City of Crescent City
- City of Davis
- City of Elk Grove
- City of Escondido
- City of Eureka
- City of Fairfield/Dept of Public Works
- City of Glendale
- City of Glendora
- City of Lakewood
- City of Los Angeles
- City of Modesto
- City of Oceanside
- City of Pleasanton
- City of Riverside
- City of Roseville
- City of Sacramento
- City of San Clemente
- City of San Diego
- City of San Juan Capistrano
- City of Santa Cruz
- City of Shasta Lake
- City of Tacoma
- City of Taft
- City of Tehachapi
- City of Tracy
- City of Tulare
- City of Vacaville
- City of Vallejo
- City of Willows
- Coastside County Water District
- Contra Costa Water District
- Corky McMillin Construction Services
- County of Lake
- County of Yuba
- Delta Diablo Sanitation District
- Dept. of Water Resources, Gorman Field Office
- DR Horton, America's Builder
- Dublin San Ramone Sv District
- Ducks Unlimited
- East Bay Municipal Utility District
- Fairfield-Suisun Sewer District
- Goleta Water District
- Irvine Ranch Water District
- Laguna Beach County Water District
- Laguna Stonelake, LLC
- Lake Arrowhead Community Services District
- Madera County
- McMillin Communities
- Micromidas, Inc.
- Moulton Niguel Water District
- Napa Sanitation District
- Nevada County Sanitation District
- Nevada Irrigation District
- Novato Sanitary District
- Olivehain Municipal Water District
- Padre Dam Municipal Water District
- Placer County Water Agency
- Rainbow Municipal Water District
- Rancho California Water District
- Rowland Water District
- Salida Sanitary District
- San Dieguito Water District
- San Jose Water Company
- Santa Margarita Water District
- Selma-Kingsburg-Fowler County Sanitation Dist.
- Sewer Authority Mid-Coastside
- SHF Properties c/o David L. Bonuccelli & Assoc
- South Orange County Wastewater Authority
- State of California, Dept. of Water Resources
- SWEPI
- United Water Conservation District
- US Department of the Interior
- Vallecitos Water District
- Vallejo Sanitation & Flood Control District
- Woodcrest Development Inc.
- Yolo County Flood Control & Water Conservation District
- Yucaipa Valley Water District