Our Clients

We work directly for Agencies, commercial and non-profits, industry, contractors, and as a subconsultant to other design professionals. You can count on ArcSine to be a team player focused on bringing each project to a successful conclusion.

Our clients include the following:

Municipal Water/Wastewater/Recycled Water
ArcSine Engineering In California And Oregon
  • City of San Diego
  • City of Los Angeles
  • Alameda County Water District
  • San Jose Water Pollution Control Plant
  • City of Milpitas
  • Santa Clara Valley Water District
  • San Francisco PUC
  • Zone 7 Water Management Agency
  • Municipal Water/Wastewater/Recycled Water
    - City of Brentwood
    - LAVWMA
    - Dublin-San Ramon Services District
    - City of Livermore
    - Delta Diablo Sanitation District
    - Contra Costa Water District
  • Central Contra Costa Sanitary District
  • Napa Sanitation District
  • Novato Sanitary District
  • City of Petaluma
  • Town of Windsor
  • Fairfield/Suisun Sewer District
  • Sacramento Regional Wastewater Treatment Plant
  • Yuba City
  • City of Anderson
  • City of Redding
  • Iron Mountain Mine
  • City of Eureka
  • City of Mt. Shasta
  • City of Klamath Falls
  • Rogue Valley Sewer Services District
  • Harbor Sanitary District
  • Eugene Water and Electric Board
  • City of Portland
  • Plus Many Others
Other Agencies/Organizations
ArcSine Engineering In Northern California And Southern Oregon
  • Jackson County Urban Renewal Agency
  • Jackson County
  • U.S. Department Of The Interior
  • Department Of Energy (SLAC)
  • NASA-Ames Research Center
  • NASA-Johnson Space Center
  • California State Parks
  • Department Of Veterans Affairs
  • General Services Administration
  • Yolo County
  • City of Coos Bay
  • Siskiyou County
  • California Elementary, Middle, and High Schools
  • Southern Oregon University
  • Chico State University
  • Solano Community College
  • St. Mary’s School
  • National University
Commercial And Non-Profits
ArcSine Engineering In Oregon and California
  • McConnell Foundation
  • Jefferson Public Radio
  • Redding Rancheria
  • Seven Feathers Casino
  • Lucky 7 Casino (Smith River Tribe)
  • Seven Crown Resorts
  • Karuk Tribe
  • Church of Latter Day Saints
  • Abbey of New Clairvaux
  • Coming Attractions Theaters
  • Mt. Shasta Ski Park
  • Premier West Bank
  • North Valley Bank
  • Jack In The Box
  • Dutch Brothers
  • Walgreens

"Thank you for your firm’s good work. We enjoy working with you."

Principal Architect
Regional Design Firm
John Maple

  • Granite Construction
  • Shea Sand and Gravel
  • Wheelabrator
  • Jaxon Enterprises
  • BioChar Global Solutions
  • Waste Management
  • Weyerhauser
  • Blue Lake Power
Other Design Professionals
  • ArcSine’s clients include over 50 other design professionals.