| 1 Up Construction Inc | B2 | 2023 | Active |
| 500 Elite Builders LLC | B | 2025 | Active |
| 625 St Clair Development Incorporated | B2 | 2026 | Active |
| A & N Construction | B | 2018 | Active |
| A B C Building & Restoration Inc | B | 2018 | Active |
| A To Z Plumbing & Heating Services Inc | B + C36 | 1994 | Active |
| Ace-High Engineering | A | 2021 | Active |
| Advance Design Construction Inc | B | 1990 | Active |
| Akd Homes Inc | B | 2023 | Active |
| All Trades Construction Services Inc | A, B + C33 | 2021 | Active |
| American Building Group Inc | B + D34 | 2017 | Active |
| American Home Upgrades-Hvac Utor Services | B + C20 | 2022 | Active |
| Amex Building Solutions Inc | B | 2022 | Active |
| Ams Construction LLC | B | 2009 | Active |
| Anza Engineering Corp | A, B | 1972 | Active |
| Bay Area Builders | B | 1995 | Active |
| Bay Circle Construction Inc | A | 2014 | Active |
| Begonia Builds Corporation | B | 2024 | Active |
| Blackstone Surfaces JV | B + C33 | 2026 | Active |
| Blue Reef Homes Inc | B | 2015 | Active |
| Build X Contracting Corp | B | 2024 | Renew by Nov 7, 2026 |
| C B P Construction Inc | B | 2017 | Renew by Nov 30, 2026 |
| Capital Builders | B | 1991 | Active |
| Carey Bros Remodeling | B | 1983 | Active |
| Carlos Insulation Inc | B + C2, C20, C36 | 2016 | Active |
| Cezu Construction Inc | B | 2026 | Active |
| Clark Jim Company Inc | B | 1995 | Active |
| Clear Day Energy | B | 2015 | Active |
| Connect Tek Of California Inc | B + C7, C10 | 1999 | Renew by Dec 31, 2026 |
| Craig Builders Inc | B | 2013 | Active |
| Delta Pro Builders | B | 2025 | Active |
| Dencol Construction Co Inc | B | 1998 | Active |
| Diablo Range Construction | B | 2018 | Renew by Nov 30, 2026 |
| Dinh Brothers Construction Inc | B2 | 2026 | Active |
| Doherty Thomas Construction Inc | B | 2013 | Active |
| Dream Bath Of California LLC | B | 2023 | Active |
| DS Power | B | 2025 | Active |
| East Bay PC Construction Inc | B | 2021 | Active |
| Eliteproinstallation Inc | B2 + C15, C54 | 2024 | Active |
| Ers Construction Management And Consulting Inc | B | 2025 | Active |
| F D R W Inc | A, B | 2009 | Active |
| Forge Construction Services Inc | B | 2026 | Active |
| Frisch T W Construction Inc | B | 2000 | Active |
| G K M Investments Inc | B + C8, C27 | 2013 | Active |
| Golden Palm Company Inc The | B + C27 | 2001 | Active |
| Golden State Builder | B + C8 | 2018 | Active |
| Golden State WLC Inc | B | 2025 | Active |
| Gramercy Group Design And Build Inc The | B | 2010 | Active |
| Groundworks Inc | B + C8, C27, C29 | 2002 | Renew by Dec 31, 2026 |
| H & X Construction Inc | B | 2022 | Active |
| Handydads Construction | B | 2021 | Active |
| Helping Hands Home Maintenance & Repairs | B | 2020 | Active |
| Hetnet Construction | B | 2022 | Active |
| Hewatt James Inc | B + C23, C51 | 1981 | Active |
| High Band Construction Inc | B + C10 | 2017 | Active |
| HMD Construction Inc | B | 2013 | Active |
| Hot Line Construction Inc | A + C10, C31, D31 | 1995 | Active |
| Hubbard Family Construction Inc | B | 2018 | Active |
| Hudson Excavation Inc | A | 1990 | Renew by Nov 30, 2026 |
| Impax Construction & Remodeling Inc | B | 2020 | Active |
| J & C General Engineering | A | 2019 | Active |
| J G G Construction Inc | B | 2021 | Active |
| JCD Remodeling LLC | B | 2026 | Active |
| Jolcron Builders Inc | B | 2024 | Active |
| K & C General Construction Inc | B | 2026 | Active |
| KP Bay Area Construction Inc | B | 2021 | Active |
| LC Home Builder Inc | A, B + C10, C16, C36 | 2015 | Active |
| Lebec Inc | A, B + C27 | 2009 | Active |
| Level 7 Construction Inc | B + C39 | 2023 | Active |
| Luxury Home Renovations Inc | B | 2019 | Active |
| M M M General Contractor Inc | B | 2008 | Active |
| M V Power Construction Inc | B | 2011 | Active |
| Medeiros Engineering | A | 2018 | Active |
| Merbrink Construction Inc | B | 2010 | Active |
| Miles Martin General Engineering Inc | A | 2008 | Renew by Nov 30, 2026 |
| MJT Construction Co | B | 2024 | Active |
| Montbay Construction Group Inc | B | 2020 | Active |
| Mosher Consulting Services Inc | A | 2012 | Active |
| Neo Air & Construction LLC | B + C20 | 2017 | Active |
| Nine County Builders LLC | B | 2026 | Active |
| Norcal Builders Inc | B + C7, C33 | 2005 | Active |
| North Point Construction And Restoration Inc | B | 2017 | Active |
| Novare Developments | B | 2018 | Active |
| Olive Renovation Inc | B | 2026 | Active |
| Partners Remodeling | B2 | 2024 | Renew by Dec 31, 2026 |
| Pepper Investments Inc | B | 2016 | Active |
| Precision Cabinets & Trim | B | 1985 | Active |
| Precision Design Source & Construction | B | 2019 | Active |
| Precision Plumbing & Contracting Inc | B + C36 | 1989 | Active |
| Premier Engineering & Construction LLC | A + C10 | 2023 | Active |
| Private Island Homes Inc | A, B | 2003 | Active |
| Production Engineering & Construction Inc | A | 1998 | Renew by Dec 31, 2026 |
| Prohomedirect Inc | B | 2021 | Active |
| Property Maintenance Painting & Construction | B + C33 | 1996 | Active |
| Quality Building Techniques Inc | B | 2021 | Active |
| Ramos A Construction Inc | B | 2006 | Active |
| Reyes E Construction Inc | B | 2006 | Active |
| RGS Inc | B + D28 | 2025 | Active |
| Rogelstad Home Repair LLC | B | 2023 | Active |
| Rogue CX Services LLC | A + C10 | 2026 | Active |