| A A Custom Construction Services A California Joint Venture | A, B | 2017 | Active |
| A B Construction Inc | B | 2011 | Active |
| A M A C Construction & Restoration | A, B + C10, C36 | 2001 | Active |
| A M Construction Inc | B | 2008 | Active |
| A S K Construction Inc | B | 2013 | Renew by Dec 31, 2026 |
| A#1 Developers Inc | B | 2022 | Active |
| AC Builders & Construction Inc | B | 2026 | Active |
| Adam Gonzales LLC | B | 1987 | Active |
| Advanced T I Inc | B + D06 | 1996 | Active |
| Aei Consultants | A + HAZ | 1992 | Active |
| Affinity Construction | B | 2015 | Active |
| Alegria Remodel & Construction Incorporated | B | 2018 | Active |
| Alisto Inc | A + C10, HAZ | 1992 | Active |
| All Bay Heating Air Conditioning & Construction Inc | B + C20, C36 | 2002 | Active |
| All Star Mold Testing & Water Damage Inc | B | 2020 | Active |
| Altor Construction LLC | A, B | 2019 | Active |
| Apex Remodeling Bay Area Inc | B | 2026 | Active |
| Apollo Roofing Company | B + C39 | 2021 | Active |
| Arad Engineering & Construction | B | 2026 | Active |
| Artemis Building Co | B + C10, C33, C39 | 2018 | Active |
| Ascend Renovation & Roofing Inc | B + C39 | 2024 | Active |
| Atlante Inc | B | 2021 | Active |
| Attic Solutions Inc | B2 + C2 | 2018 | Active |
| Ball Gordon N Inc | A | 1995 | Active |
| Bay Area Builders | B | 1995 | Active |
| Bay Harbor Remodeling And Construction | B | 2025 | Active |
| Bear Remodeling Inc | B + C33 | 2019 | Active |
| Beckner Contracting & Management Inc | B | 1993 | Active |
| Blackstone Global | B | 2017 | Active |
| BMG Remodeling Corporation | B, B2 | 2023 | Active |
| Bocek - Compaglia | B | 2011 | Active |
| Brosamer & Wall Inc | A, B + HAZ | 2012 | Renew by Nov 30, 2026 |
| Brown And Caldwell | A | 1983 | Active |
| Brown And Caldwell Constructors | A | 1996 | Renew by Dec 31, 2026 |
| Build Strong Construction And Remodeling | B | 2025 | Active |
| Building Services | B + C43 | 1988 | Active |
| Bwi/Tpc A Joint Venture | A | 2021 | Active |
| C M I Engineering & Construction | B | 2001 | Active |
| California Construction Pro Service | B | 2026 | Active |
| California First Class Construction Inc | B | 2023 | Active |
| California Spa Service | B + C53 | 2013 | Active |
| California Sunrooms Co | B | 1992 | Active |
| Canadian Solar Sses (Us) Inc | A, B | 2021 | Active |
| Carlson William Ventures | B | 2003 | Active |
| CBC General Contractors Inc | B | 2010 | Active |
| Cerletti & Kennedy Design - Build | B | 2010 | Active |
| Cooper John I General Contractor Inc | B | 1991 | Active |
| Crane Construction | B | 2023 | Active |
| Create Interior Design And Remodeling | B | 2020 | Active |
| Creation 7 Builders | B + C8 | 2017 | Active |
| Crinnion Construction Inc | B | 1983 | Active |
| Crouse Construction Company Inc | B | 1982 | Active |
| CTM Builders Inc | B | 2025 | Active |
| D G Design Group Builders Inc | B | 2021 | Active |
| Davidon Homes | B | 1990 | Active |
| Davis Home Pros | B | 2002 | Active |
| Dci Construction | B | 2008 | Active |
| Decotech Systems Inc | B + C7, C10 | 2005 | Active |
| Dfconceal LLC | A, B + C10 | 2024 | Active |
| Dndkb Inc | B | 2023 | Active |
| Door2 Construction | B | 2023 | Active |
| Dream Big Drywall Inc | B + C9 | 2022 | Active |
| Duce Construction Inc | B | 2021 | Active |
| Eas Solutions Inc | B | 2022 | Active |
| Eco - Chek Compliance Inc | A | 2011 | Active |
| Eco Performance Builders Inc | B + C2, C20 | 2010 | Active |
| Electronic Security & Entertainment Corporation | B + C10 | 2006 | Active |
| Elevate Construction | B | 2025 | Active |
| Elevate Design Build Inc | B | 2014 | Active |
| Engineered Soil Repairs Inc | A, B + HAZ | 1993 | Active |
| Errington & Company Inc | B + C33 | 1990 | Active |
| Evolution Construction And Building Services Inc | B | 2021 | Active |
| Exact Construction & Developers Inc | B + C36 | 2015 | Active |
| Fine Designs Custom Cabinets And Closets | B | 2016 | Active |
| Finished Home Inc A | B + C6 | 2008 | Active |
| Fusionfit | B | 2016 | Renew by Nov 30, 2026 |
| Galan Construction Inc | B | 1991 | Active |
| Go Beyond Builders Inc | B + C36 | 2023 | Active |
| Gold Medallion Commercial Builders | B + C8 | 1989 | Active |
| Golden Bay Foundation Builders Inc | B | 2023 | Active |
| Golden Grove Roofing And Construction | B + C39 | 2025 | Active |
| Golden Home Access | B | 2025 | Active |
| Golden Pacific Works Inc | B | 2025 | Active |
| Golden Rain Foundation Of Walnut Creek | B | 1995 | Active |
| Golden State Builders Group Inc | B | 2024 | Active |
| Gordon Reese Design Build | B | 1984 | Active |
| Greengo Landscaping Inc | B + C27 | 2006 | Active |
| Harabuilt Construction | B | 2001 | Active |
| Hearthstone Building & Restoration | B + C10, C20, C36 | 1976 | Renew by Dec 31, 2026 |
| Home Guys Construction The | B | 2011 | Active |
| Huff General Engineering | A | 2025 | Active |
| Iberian Builders Inc | B | 2026 | Active |
| Ilie Mircea Construction Inc | B | 2000 | Active |
| Illuminate Solar Company | B + C39, C46 | 2009 | Active |
| Imperia Roofing And Exteriors | B + C39 | 2025 | Active |
| Integrated Design Build Project Solutions | B | 2025 | Active |
| Interiors Of California Inc | B | 2025 | Active |
| Jayco Constructors Inc | B | 1995 | Active |
| Jones M Construction Inc | B | 2000 | Active |
| K D M Builders Inc | B | 2008 | Active |