| 2k Builders LLC | B | 2017 | Active |
| 38 Degrees North Latitude Builders Inc | B + C6 | 2004 | Active |
| A R C Restoration & Waterproofing Inc | B + C39, D51 | 2008 | Active |
| A Tureck Construction Inc | B | 2026 | Active |
| Aaron Hirschfeld Construction LLC | B | 2008 | Active |
| Adventures In Production Inc | B | 2010 | Active |
| Aes Group Inc | B | 2000 | Active |
| Agcl Construction Inc | B | 2021 | Active |
| Alan Hynes Construction LLC | A, B + C8 | 1996 | Active |
| Albertoli Construction Corporation | B | 1981 | Active |
| Alioto & Associates Inc | B | 1993 | Active |
| Andes Project Contractor Corp | B | 2023 | Active |
| Archetype Design Build Inc | B | 2000 | Active |
| Ard Mac Electric Inc | B + C7, C10 | 2011 | Active |
| Arrington Construction Company Inc | B | 2002 | Active |
| Arrow Builders Inc | B | 2017 | Active |
| Aspect Builders LLC | B | 1999 | Active |
| Au Gold Construction Inc | B | 2024 | Active |
| Ava Construction Inc | B | 2021 | Active |
| B A Squared | B | 2017 | Active |
| B M C Contractors Inc | B | 2003 | Active |
| Baldenebro Construction Inc | B | 2015 | Active |
| Bauman Landscape And Construction Inc | A + C8, C27 | 1979 | Active |
| Bayline Electric | B + C10 | 1988 | Active |
| Bayside Builders | B | 2011 | Active |
| Beale Builders And Construction Inc | B + C36 | 1989 | Active |
| Better Built Construction | B | 2001 | Active |
| Bicardo Builders Inc | B | 2006 | Active |
| Boltwest LLC | A + C27 | 2025 | Active |
| Bradbury Cheshire Corporation | B | 1974 | Active |
| Brent David Construction | B | 1992 | Active |
| Brownco Construction & Development Inc | A, B | 1991 | Active |
| Bryce C B Construction Inc | B | 2006 | Active |
| Burke Blair General Contractors Inc | B | 1993 | Active |
| C & J's Custom Builds Inc | B | 2023 | Active |
| Cal Summit Builders | B | 2007 | Active |
| Canche Construction Inc | B | 2020 | Active |
| Cestarollo Construction Inc | A, B | 2025 | Active |
| Ciaran Lynch Carpentry LLC | B | 2024 | Active |
| Cline Builders LLC | B | 2024 | Renew by Dec 31, 2026 |
| CLM Builders Inc | A, B | 2015 | Active |
| Clough Construction | B | 1987 | Active |
| Colindres & Associates | B | 2010 | Active |
| Collins Aidan & Sons Inc | B | 1979 | Active |
| Comari | B + C35 | 2017 | Active |
| Consolidated Construction Inc | B + C6 | 1978 | Active |
| Cook General Contractor Inc | B | 2007 | Active |
| Crafted Earth Inc | B | 2016 | Active |
| Craftsman Concepts LLC | B | 2023 | Active |
| D & D Pipelines Inc | A | 2004 | Active |
| Daly Connor Corporation | B | 1988 | Active |
| De Luna Construction LLC | B | 2017 | Active |
| Deckmasters Housesavers | B + C33, D41 | 2023 | Active |
| Defensible Space Pros | B + D49 | 1991 | Active |
| Developers Plus | B | 1991 | Active |
| Di Giorgio Contracting Company | A, B | 2003 | Active |
| Diego Bros Incorporated | B | 1982 | Active |
| Domer G Construction | B | 2021 | Active |
| Dutra Construction Co Inc | A + C10, HAZ | 1994 | Active |
| Dutra Dredging Company | A + C10, HAZ | 1995 | Active |
| Dutra-Teichert A Joint Venture | A | 2026 | Active |
| Dynasty Design Builds Inc | B | 2020 | Active |
| Eco Valley Construction Inc | B | 2003 | Renew by Nov 30, 2026 |
| Emmanuel Re-Modeling Co | B | 2024 | Active |
| F L Construction Inc | B | 2020 | Active |
| Fay Construction & Restoration Inc | B | 2004 | Active |
| Figs Roofing LLC | B + C39 | 2022 | Active |
| Floortex Design Inc | B + C15 | 1988 | Active |
| Floyd Construction Inc | A, B | 1978 | Active |
| Fontana Construction Inc | B | 1986 | Active |
| Fontana Keith Construction | B | 1993 | Active |
| G De Leon Construction Inc | B | 2021 | Active |
| G Family Inc | B | 2007 | Active |
| Gaidano & Sons Painting & Decorating Inc | B + C33 | 2004 | Active |
| Gannon Construction Company | A, B | 1988 | Active |
| Ghilotti Bros And St Francis Electric JV | A | 2023 | Active |
| Ghilotti Bros Inc | A + C8, C12, C21 +4 | 1952 | Active |
| Ghilotti Bros/Gsw JV | A | 2024 | Renew by Nov 30, 2026 |
| Ghilotti Bros/Vanguard Construction JV | A | 2022 | Active |
| Giesen Gary W Construction | B | 1983 | Active |
| Golden State Handyman Inc | B | 2018 | Active |
| Greene Building Company Inc | B | 1982 | Active |
| Greener Excavations & Construction Inc | A | 2006 | Active |
| Greenfield Carpentry & Remodeling LLC | B | 2024 | Active |
| Greenport Construction Inc | B | 2021 | Active |
| Griffith-Gbi JV | A | 2026 | Active |
| Hachman Construction Inc | B | 2003 | Active |
| Hakewill Construction Company Inc | B | 1988 | Active |
| Hands On Construction Inc | B | 2026 | Active |
| Hanford Applied Restoration & Conservation | A + C27 | 1984 | Active |
| Harte Building And Design Inc | B | 2000 | Active |
| Hawthorne Company The | B | 2002 | Active |
| Hearth & Home Of Marin | B + C33, D34 | 2003 | Active |
| Herrera Elite Construction Group LLC | B | 2020 | Active |
| Hgci | B | 1996 | Active |
| Hines Custom Inc | B | 2001 | Active |
| Hughes Builders Inc | B | 2010 | Active |
| I Construction | B | 2018 | Active |
| I K Design Inc | B | 1998 | Active |
| Icd Innovative Construction & Design Inc | B | 2006 | Active |