| A4 Builders LLC | B | 2025 | Active |
| Aarnav Builders Inc | B + C10 | 1992 | Active |
| Advanced Water Well Drilling & Pump Services | A, B + C57 | 2017 | Active |
| Alpha Design And Build Inc | B | 2024 | Active |
| Amg Excavating Inc | A, B | 2016 | Renew by Nov 30, 2026 |
| Ap Custom Builds LLC | B | 2026 | Active |
| Aquatic Harvesting | A | 2011 | Active |
| Arc Construction A Partnership | B | 2022 | Active |
| Aries Builders Inc | B | 2012 | Active |
| Arms Construction Inc | B | 2025 | Active |
| Artaville Construction Inc | B | 2024 | Active |
| Asher Brothers Construction Inc | B | 2023 | Active |
| Aspire Builders | A, B + C10, C33, C46 | 2008 | Active |
| Baillie Communications Inc | A + C7 | 1997 | Active |
| Barron Restoration Inc | B + C33 | 2011 | Active |
| Bay Best Construction Inc | B | 2008 | Active |
| BCS Inc | B | 2016 | Active |
| Benchmark Home Construction Inc | B | 2012 | Active |
| Blodgett's Home Improvement Inc | B | 2002 | Active |
| Blue Castle Construction | B | 2004 | Active |
| Blue Flame Crew West LLC | A + C57 | 2014 | Active |
| Braddock & Logan Services Inc | B | 1999 | Active |
| Bradley Tanks Inc | A + HAZ | 2011 | Active |
| Brennan Construction Co Inc | B | 1984 | Active |
| C M H Construction Inc | B | 2002 | Active |
| C S Development & Construction Inc | B | 2012 | Active |
| California Professional Builders Inc | A, B | 2002 | Active |
| Caltron Groups Inc | B | 1997 | Active |
| Casa Blanca Construction | B | 2018 | Active |
| Caw Air Construction Inc | B + C20 | 2026 | Active |
| Ceap Construction Inc | B | 2017 | Active |
| Construction Pros LLC | B | 1996 | Active |
| Corbett/Salvador Construction Inc | B | 2014 | Active |
| Core Build Group Inc | B + C33 | 2026 | Active |
| Covenant Technical Solutions Inc | A | 2024 | Active |
| CR Renovations Ca Inc | B | 2024 | Active |
| Crafted Earth Design & Build | B2 | 2025 | Active |
| D K M Builders Inc | B | 2005 | Active |
| Dalikas Chris Inc | B | 2009 | Active |
| Diablo Iron & Fence Inc | B + C23, C51 | 1982 | Active |
| Dio Reality LLC | B | 2026 | Active |
| Dura Art Stone Construction Co Inc | B | 2013 | Active |
| Eagle Peak Builders Inc | B | 1991 | Active |
| Environmental CPR Inc | B + ASB | 1986 | Active |
| Firestorm Protect | B | 1989 | Active |
| Freethy Jim Excavating Inc | A | 1996 | Active |
| G Forster Construction Inc. | B + C17 | 2012 | Active |
| Gayler Design Build Inc | B + C15 | 1979 | Active |
| Gentile Construction Inc | B | 2022 | Active |
| Green Infrastructure And Environmental Inc | A, B + C10 | 2026 | Active |
| Greenstar Builders Inc | B | 2017 | Active |
| Grovestrong Construction Services LLC | B | 2024 | Active |
| H P Construction Services Inc | A, B | 2007 | Active |
| Haven Development | B | 2019 | Active |
| Homeowners Management Company LLC | B | 2024 | Renew by Dec 31, 2026 |
| Imagine Construction | B | 2007 | Active |
| Ironcrest Development Group LLC | B | 2026 | Active |
| J S Builders LLC | B | 2012 | Active |
| Jannisse & Sons Landscaping | B + C27 | 2024 | Active |
| JWJ Construction | B | 2023 | Active |
| Landscape Experts Inc | B + C27 | 2018 | Active |
| Lewkowicz & Associates Inc | B | 1988 | Active |
| Loukos Construction Inc | B | 2003 | Active |
| LTG Construction | B | 2009 | Active |
| Madsa Development | B | 2022 | Active |
| Magnis Builder LLC | B + C8 | 2024 | Active |
| Mancon Building Corp | B | 2000 | Active |
| Mattei Construction Services Inc | B + C54 | 2012 | Active |
| McMahon Construction Services Inc | B | 1988 | Active |
| McQueen Construction Inc | B | 1990 | Active |
| Michela Construction Corporation | B | 2002 | Active |
| Milz Development & Construction | B | 2016 | Active |
| Mindful Construction Inc | B | 2023 | Active |
| Morgante Builders | B | 2025 | Active |
| Muyskens Greg Contractor Inc | B | 1992 | Active |
| Northstar Solar Inc | B + C33, C39, C46 | 2015 | Active |
| Nugent Constructors Inc | A, B | 1990 | Active |
| Oak Creek Contractors Inc | B | 2017 | Active |
| Pacific Waste Services Inc | A | 1995 | Active |
| Pizzi Stephen E Inc | B | 2006 | Active |
| Plan Perfect Remodeling Inc | B | 2024 | Active |
| Polyzos Construction Inc | B | 1980 | Active |
| Pritzkow Construction Inc | B | 1994 | Active |
| Professional Electric Contractors Inc | B + C10 | 1990 | Active |
| R & J Construction Inc | B + C20 | 1988 | Active |
| R F I Construction Management Inc | B + C33 | 2009 | Active |
| Reimagine Construction | B | 2022 | Renew by Nov 30, 2026 |
| Residential Design Solutions Inc | B | 2005 | Active |
| Rez Construction Inc | B | 2007 | Active |
| Rick's Tooltime Inc | B | 2009 | Active |
| Roberts-Obayashi James E Corporation | A, B | 1978 | Active |
| Roth Michael Construction Corporation | B | 2021 | Active |
| Rovnanikconstruction LLC | B | 1998 | Active |
| S & H Construction Inc | A, B + C9, C10, C20 +1 | 2000 | Active |
| S & J Properties Construction Inc | B | 2014 | Active |
| S G Construction Company | B | 2024 | Active |
| S2serm LLC | A | 2025 | Active |
| Sagarchi Enterprises Inc | B + C10, C36 | 2022 | Renew by Dec 31, 2026 |
| Sameday Solutions | B | 2024 | Active |
| SGX Construction Services Inc | B | 2025 | Active |