| 1-888-heat-pumps | B | 2023 | Active |
| 10square Construction Inc | B | 2020 | Active |
| 360 Property Solutions LLC | B | 2015 | Active |
| A & E Emaar Company | A, B | 2015 | Active |
| A A E Group Construction Corp | B | 2013 | Active |
| A Better Rooter Plumbing & Engineering Inc | A | 2004 | Active |
| A1 Sun Inc | B | 2007 | Active |
| Abrams / Millikan & Associates | B | 1992 | Active |
| Advanced Home Energy Inc | B | 2006 | Active |
| Akh Construction | B | 2018 | Active |
| Alhorn Lyn Design Build LLC | B | 2023 | Active |
| Alhorn/Hooven A Design Build Collaborative LLC | B | 2024 | Active |
| Alward Construction Company Inc A California Corporation | B | 1989 | Active |
| Aquatech Consultancy Inc | B | 2002 | Active |
| Art Of Building Architecture Construction Management Inc | B | 1999 | Active |
| Bardo Builders Collective Inc | B | 2026 | Active |
| Ben Hardy & Company | B | 2018 | Active |
| Berkeley Building Company Inc | B | 2022 | Active |
| Berkeley Craftsmen General Contractors Inc. | B | 2005 | Active |
| Berkeley Electric Inc | B | 1980 | Active |
| Bleu Net Inc | B | 2025 | Active |
| Bonkowski & Associates Inc | A | 2001 | Active |
| Brightwood Builders Inc | B | 2010 | Active |
| Broad Spectrum Environmental Inc A Professional Corporation | A | 2026 | Active |
| Buildmark Inc | B | 2010 | Active |
| C M A Painting Inc | B | 2020 | Active |
| Caldecott Construction LLC | B | 1990 | Active |
| Cartelli Painting & Waterproofing Inc | B | 1988 | Active |
| Cerami Builders Inc | B | 1988 | Active |
| Cheng Design And Construction Inc | B | 1991 | Active |
| Coyle Residential Inc | B | 2009 | Active |
| D & H Construction | B | 1994 | Active |
| Devco Design & Construction | B | 1982 | Active |
| Dinardo Design And Construction Inc | B | 2004 | Active |
| Dogtown Design Build LLC | B | 2021 | Active |
| Downey Peter Construction Company Inc | B | 1991 | Active |
| Elliott Build Remodel LLC | B | 2009 | Active |
| Ezra Construction | B | 2006 | Active |
| Fitzbuild LLC | B | 2023 | Active |
| Fitzgerald Construction Inc | B | 1987 | Active |
| Five9 Builders | B | 2014 | Active |
| Fleischmann Design Collaborative Inc | B | 2018 | Active |
| Forgette Construction Inc | B | 2018 | Active |
| French Painter The | B | 2017 | Active |
| GDG Builders | B | 2026 | Active |
| Green Living Builders LLC | B | 2008 | Active |
| Grubb David Construction Inc | B | 1995 | Active |
| Hai Luu Construction Inc | B | 2022 | Active |
| Hoffmann Rick Services Inc | B | 2012 | Active |
| Holland & Harley Construction Inc | B | 1992 | Active |
| Home Healing Renovations Inc | B | 2009 | Active |
| I N T Design Construction Inc | B | 2008 | Active |
| Impact Pro Construction | B | 2025 | Active |
| Infrastructure Development Corporation | B | 1992 | Active |
| Integrity Remodeling Company Inc | B | 2004 | Active |
| J P Construction Builders | B | 2020 | Active |
| J&B Homes LLC | B2 | 2024 | Active |
| JRMK Construction LLC | B | 2012 | Active |
| Keene Builders Inc | B | 2001 | Active |
| Kwu Studio Inc | B | 2025 | Active |
| Levitch Associates Incorporated | B | 1992 | Active |
| Lord Brad Solutions Inc | B | 2008 | Active |
| Loren Moore Construction Inc | B | 2022 | Active |
| Macleod Design & Construction Inc | B | 2026 | Active |
| Mascheroni Construction Inc | A, B | 1998 | Active |
| Massoumi Impact Construction Inc | B | 1990 | Active |
| McCutcheon Michael Construction Company Inc | B | 1988 | Active |
| McDunn Construction Inc | B | 2011 | Active |
| Milarox | B | 2010 | Active |
| Milestone Properties Inc | B | 2014 | Active |
| Millikan/Lawler Builders Inc | B | 2005 | Active |
| More Than A Carpenter | B | 1997 | Active |
| Mosvaler Construction Inc | B | 2018 | Active |
| N C Construction Inc | B | 2019 | Active |
| Nelson Al Construction Inc | B | 1992 | Active |
| Newell Construction Inc | B | 1987 | Active |
| Nix Woodwork & Construction | B | 2018 | Renew by Nov 30, 2026 |
| Noa Design And Construction | B | 2016 | Renew by Nov 30, 2026 |
| North Berkeley Design & Construction Inc | B | 2012 | Active |
| Nurture Source Partners LLC | B | 2019 | Active |
| O C Jones & Sons Inc | A | 1999 | Active |
| Obra Construction & Building Services LLC | B | 2025 | Active |
| Oc Jones & Sons | A | 2021 | Active |
| Oliver Builders Inc | B | 1993 | Active |
| Pancoast Construction Inc | B | 2009 | Active |
| Pangea Environmental Services Inc | A | 2009 | Active |
| Rebuilding Together East Bay Network | B | 2025 | Active |
| Red Plum Studio LLC | B | 2011 | Active |
| Rodan Oc Jones A Joint Venture | A, B | 2025 | Active |
| Rowe Design Build Inc | B | 2010 | Active |
| Ryan & Campbell Construction | B | 2016 | Active |
| S B Construction | B | 1990 | Active |
| Sandquist Construction Inc | B | 1989 | Active |
| SC Summerwood Inc | B | 1982 | Active |
| Shabod Construction Inc | B | 2024 | Active |
| Sharper Development LLC | B | 2025 | Active |
| Shearman Builders Inc | B | 2026 | Active |
| Shearman Construction LLC | B | 2022 | Active |
| Shelter Builders Inc | B | 2013 | Active |
| Simple Consulting Corporation | B | 2025 | Active |