| Abbott, Stringham & Lynch | |
| ACCO Engineered Systems, Inc. | |
| Accurate Firestop Inc. | |
| Advantage Building Solutions | |
| Agave | |
| Aktion Associates Inc. | |
| Alliance Roofing Co. | |
| Alliant Insurance Services, Inc. | |
| Andersen Pacific Engineering Construction, Inc. | |
| Atascadero Glass, Inc. | |
| Ausonio Incorporated | |
| Avidbank | |
| B.T. Mancini Company | |
| Baker Tilly US, LLP | |
| Balch Petroleum Contractors and Builders, Inc. | |
| Bank of America | |
| Bay Area Concretes, Inc | |
| Bay Cities Paving & Grading, Inc. | |
| BBI Construction | |
| BCCI Construction LLC | |
| Berkshire Hathaway Specialty Insurance | |
| BFBA, LLP | |
| Bigge Crane & Rigging | |
| Blach Construction Company | |
| Blum and Sons Electric Inc | |
| BMO | |
| Bolton & Co. | |
| BOSS - Back Office Support Services, Inc | |
| Bradley Concrete | |
| BRAYN Consulting LLC | |
| Bridge Bank | |
| Brixco Construction, Inc. | |
| Buhler Commercial Construction | |
| C. Overaa & Co. | |
| California Retaining Walls Co. | |
| California United Mechanical, Inc. | |
| Canterbury Contractors Inc. | |
| Center | |
| Chrisp Company | |
| Chubb Clark Bros, Inc. | |
| Clifford Consulting CliftonLarsonAllen LLP | |
| Compass Engineering Contractors, Inc. | |
| Construction Information Services, LLC | |
| Corpay | |
| Couts Heating & Cooling, Inc. | |
| Cratus Inc. | |
| Creative Window Interiors, Inc. | |
| Cupertino Electric, Inc. | |
| D Webber Consulting Inc. dba Megawatt Electrical | |
| D-Line Constructors, Inc | |
| D. Brown Management | |
| D.H. Smith Company, Inc. | |
| DACO Construction | |
| Daley's Drywall | |
| De Haro Ramirez Group | |
| De Mattei Construction, Inc | |
| Dome Construction Corporation | |
| Duran & Veanbles, Inc. | |
| Dynamic Office & Accounting Solutions | |
| Eide Bailly LLP | |
| EKC ENTERPRISES, INC | |
| Elcor Electric, Inc. | |
| Elements Manufacturing, Inc. | |
| Elite Team Offices | |
| Enterprise Fleet Management | |
| EPIC Insurance Brokers & Consultants | |
| Field Materials, Inc | |
| Fontenoy Engineering, Inc. | |
| FTG Builders, Inc | |
| Gallagher Risk Management Services, Inc. | |
| GCI, Inc. | |
| Ghilotti Bros., Inc. | |
| Gidel & Kocal Construction Co., Inc Gilbane | |
| GMH Builders, Inc. | |
| Graniterock | |
| Heffernan Insurance Brokers Heritage Bank of Commerce | |
| HPS Palo Alto, Inc. | |
| IAT Insurance Group | |
| ICOM Mechanical, Inc. | |
| IGH Partners, LLC | |
| Independent Construction | |
| IQV Construction & Roofing, Inc. | |
| J & J Acoustics, Inc. | |
| J.W. McClenahan Co. | |
| JF Events | |
| Johnstone Moyer, Inc. | |
| Joseph J Albanese Inc. | |
| Just, Gurr & Associates | |
| KDW Construction, LLC | |
| Kent Construction | |
| Koffler Electrical Mechanical Apparatus Repair, Inc | |
| Landmark Builder, Inc. | |
| Leonidou & Rosin Prof. Corp. | |
| Level 10 Construction | |
| Lewis and Tibbitts, Inc | |
| Loomis LLP | |
| M D E Electric Co. | |
| Mai Construction | |
| Martin’s Metal Fabrication & Welding, Inc | |
| MCK Services | |
| McLarney Construction, Inc. McMillan Data Communications McSherry & Hudson | |
| Merchants Bonding Company Mission Bell MFG, Inc | |
| Monterey Mechanical Co. | |
| Moss Adams LLP | |
| Mynt Systems | |
| Nationwide Surety | |
| Next Phase Construction, Inc. Norman S. Wright Mechanical Novo Construction, Inc. | |
| O.C. McDonald | |
| O'Donnell Plastering Inc. | |
| OperX Group | |
| Pacific Coast Trane | |
| Pacific Performance Drywall, Inc. | |
| Pacific Ridge Builders, Inc. | |
| Palmer Consulting Group | |
| Paragon Commercial Builders Patrick J. Ruane, Inc. | |
| Peninsula Custom Homes, Inc. | |
| PentaRisk Insurance Services, LLC | |
| Plexxis | |
| Premier Recycle Company Inc. | |
| Preston Pipelines Inc | |
| RDL Construction Inc | |
| Redwood Electric Group | |
| Rick Slater Construction, Inc. | |
| RJS & Associates | |
| RoadFlex Fleet Cards | |
| Rosendin Electric Inc. | |
| Royal Glass Company Inc | |
| S.J. Amoroso Construction Co., LLC | |
| SAGE | |
| Schaper Company | |
| Schlegel Cascade | |
| Scudder Roofing Company | |
| Sensiba San Filippo LLP | |
| Signature Analytics | |
| Silicon Valley Mechanical | |
| Siteline | |
| Smith Mechanical-Electrical-Plumbing, Inc. | |
| Specialty Construction, Inc. | |
| Stacy & Witbeck, Inc. | |
| Staples Construction Company | |
| Sweeneey Mason LLP | |
| Swinerton | |
| T3, Inc. | |
| Talus Construction, Inc. | |
| TBC - The Boring Company | |
| TDN Electric, Inc. | |
| Technical Builders Inc | |
| The Dutra Group | |
| The Hartford Financial Services Group, Inc. | |
| The Whiting Turner Contracting | |
| Tilson Technology Management | |
| Timeline Design+Build | |
| Travel Partners | |
| Truebeck Construction, Inc. | |
| tys, llp Trusted Advisors & Accountants | |
| Umpqua Bank | |
| United Mechanical, Inc | |
| United Mechanical Incorporated | |
| Vanir Construction Management, Inc. | |
| W. Bradley Electric, Inc. | |
| W. L. Hickey Sons, Inc. | |
| W.E. Lyons Construction | |
| Walters & Wolf | |
| West Coast Architectural Sheet Metal | |
| West Valley Construction | |
| WL Butler | |
| Woodruff Sawyer & Company | |
| Wozniak & Co. | |
| Zurich NA |