- Will Power
- Wahlund Construction-Electrical Division
- TnT Drywall
- Summit Signal
- Standing Wave Engineering
- Safetybygeorge, LLC
- Rental Guys
- Patrick Queen Construction
- Northcoast Awning Co.
- Nor Cal Mechanical, LLC
- Bob White Electric, LLC
- Lewis Land Development, Inc.
- KelCo Construction, LLC
- Hooven and Reese, Inc.
- Guzi West Inspection and Consulting
- Fisch Drilling & Pump, Inc.
- Chris Lehto Electric
- Chance Hart Trucking & Excavation
- Bob Downing Electric
- United Rentals
- Yurok Tribe TERO
- Valley Lumber & Millwork
- Renaissance Painting
- Valley Pacific
- VanMeter Logging & Construction
- Viltrakis Construction Inc.
- Wahlund Construction Inc.
- Wayne Maples Plumbing & Heating
- Wendt Construction
- West Coast Contractors
- Whitchurch Engineering Inc.
- Whitson Inc.
- William F. Bott
- William Gray Construction
- William J. Etter Construction
- Willow Hawk Inc.
- Wylatti Resource Management Inc.
- Steve Morris Logging & Contracting
- Steve’s Septic Service LLC
- Stover Engineering
- Sunbelt Rentals
- T T Construction
- Tensor LLC
- The Mill Yard
- Thomas Home Center
- Thomas R. Bess Inc.
- Thompson Builders Corporation
- Tidewater Contractors
- Town & Country Refrigeration
- Travis Carmesin Construction
- Tri Counties Bank
- Umpqua Bank
- Statewide Traffic Safety & Signs
- United Plumbing & Mechanical
- S&B James Construction Company
- Samara Restoration
- Sanders Roofing
- Sargent Excavation
- Schmidbauer Building Supply LLC
- Sequoia Construction Specialties
- Shafer’s Ace Hardware
- SHN Consulting
- Sholes Overhead Door Inc.
- Simple Visions LLC
- Six Rivers Solar
- SJL Construction Inc.
- SJR Masonry and Construction
- Rick Parker Construction
- Spencer Electric
- Robinson Trucking and Equipment LLC
- Staples Construction
- Rogers Machinery Company Inc.
- Primo Drywall Construction Co.
- Property Development & Management Inc.
- R Brown Construction Co. Inc.
- Randall Sand & Gravel
- RAO Construction Co. Inc
- Redwood Capital Bank
- Redwood Coast Energy Authority
- Redwood Coast Plumbing
- Redwood Empire Roofing Inc.
- Redwood Mechanical
- Pierson Company
- Revival Home Builders Inc.
- Points West Surveying Co. Inc.
- RH Construction
- Poletski’s Appliance Center Inc.
- Rich Well Drilling & Pump Service
- Porter and Sons Painting
- Powell Concrete Pumping
- PPG Industries
- Oscar Larson & Associates
- Owsley Electric
- PACE Supply
- Pacific Builders
- Pacific Earthscape
- Pacific Watershed Associates Inc.
- North Coast Floor & Tile
- Pape` Machinery
- Northcoast Acoustics
- Pauli-Shaw Insurance Agency
- Northcoast Environmental Construction
- Perlo Construction
- Northcoast Lighting & Electric Inc.
- Pierson Building Center
- Northridge Electric LLC
- Nylex.Net Inc.
- O & M Industries
- Omsberg & Preston
- Ontiveros & Associates
- Operating Engineers Local #3
- Mobley Construction dba MCI
- Nelson Floor Co.
- New Life Service Co.
- Nicholls Trucking Inc.
- Norcal PTAC
- Low Voltage Security dba Security Lock & Alarm
- North Coast Fabricators (Aquatic Design)
- M M Electric
- Matson & Vallerga Architects Inc.
- McCollum General Engineering
- McCullough Construction Inc.
- McKeever Energy & Electric
- McKenny & Sons Inc.
- McKinleyville Glass Co.
- McMurray & Sons Inc.
- Mercer Fraser Company
- Miller Farms Nursery Inc.
- Kramer Properties Inc.
- J & J Services
- LACO Associates
- J. B. Steel Inc.
- Your Local Mow Man Landscaping and Gardening
- Trihydro
- Lindberg Geologic Consulting
- JMH Plumbing & Mechanical
- Lindstrom Construction Inc.
- JNG Insulation
- JNM Construction
- John H. Kruger Plastering & Drywall
- Johnny’s Flooring & Window Coverings
- John’s Excavating
- Johns’ Group LLC
- JZ Contracting Inc.
- K B Aspoy Consulting
- Keenan Supply (HAJOCA)
- Kelly-O’Hern Associates
- Kernen Construction
- Hemmingsen Pavement Solutions
- J & G Lawn & Garden
- Hensell Materials
- Hilfiker Pipe Company
- HillTop Commercial Supply Inc.
- Hoopa Valley Roads Aggregate & Concrete
- Hooven & Co. Inc.
- Hooven Landscaping
- Humboldt CCTV
- Humboldt County Department of Public Works
- Humboldt County Office of Education
- Humboldt Electric
- Humboldt Fasteners & Tools Inc.
- Humboldt Fence
- Humboldt Moving & Storage Co.
- Heartwood Design/Build
- Cal Poly Humboldt
- Hemmingsen Contracting Company Inc.
- Industrial Electric Arcata Inc.
- Forbusco Lumber
- Fortuna Iron (FOI)
- Frank Zabel Trucking
- George J Kurwitz
- George Petersen Insurance Agency
- GHD
- GR Sundberg Inc.
- GR Wilcox Enterprises Inc.
- Granite Construction
- Greenway Partners
- Greenwired
- Figas Construction
- Gregg Simpson Trucking
- Firestop Co.
- Hamanaka Painting Co.
- First Service Plumbing & Heating
- Harbers Insurance Agency Inc.
- Fleming Plastering
- Forbes Cabinets
- Eel River Transportation & Salvage
- EJH Construction
- Ellena Construction
- Eureka Floor Carpet One
- Eureka Glass Company Inc.
- Eureka Overhead Door Company Inc.
- Eureka Ready Mix Concrete Company Inc.
- Evans Mechanical
- Danco Builders Northwest
- Express Employment Professionals
- Danielson Construction Inc.
- F.C. Bickert Lath & Plaster Inc.
- DCI Builders
- Fenton Construction Services
- Design Air Heating & Sheet Metal
- Dinsmore Construction Company
- Don’s Rent All
- EBA Engineering
- Edwards Excavation and Restoration
- Colburn Electric
- Coldwell Banker Commercial Pacific Partners
- Coldwell Banker/Cutten Realty
- College of the Redwoods
- Burgess Electric
- Communications Cabling Systems Inc.
- Caledonia Plumbing
- Cornerstone Construction Co.
- California Heating & Sheet Metal
- Cummins Pacific LLC
- Cal-Ore Life Flight
- Daltile Corp.
- Campton Electric Supply Inc.
- Carbonneau Ceramic Tile Inc.
- Carpenter’s Local #751
- Carpet Depot
- CDH Painting
- Cher-Ae Heights Indian Community of the Trinidad Rancheria
- City of Arcata
- Coast Central Credit Union
- Bay Tank & Boiler Works dba BT Metals
- Beacom Construction Co.
- 5D Solutions Inc.
- Bode Construction
- 6 Rivers Construction Inc.
- Brant Electric
- A & I Roofing Inc.
- A.F.P. Sprinklers Inc.
- Adams Commercial General Contracting Inc.
- Kinnetic Environmental, Inc.
- Advanced Security Systems
- Air Tight
- Alves Inc.
- Ambrosini & Sons Electric Inc.
- An Electrician Inc.
- Anderson Lucas Somerville & Borges LLP
- B & B Portable Toilets
- Barry Smith Construction