| 10 Gauge Sheet Metal Inc | B + C39, C43 | 2017 | Active |
| A Better Fire Restoration | B | 2020 | Active |
| A M E Roofing | A, B + C10, C20, C33 +2 | 2019 | Active |
| A&F Ramirez Construction Inc | B | 2019 | Active |
| Adu Solutions La | B | 2006 | Active |
| Advantage Builders Inc | B | 2006 | Active |
| All American Traditions Foundation Repair Inc | B | 2016 | Active |
| Alloy Builders LLC | B | 1989 | Active |
| Allsup Corporation | A, B | 1980 | Active |
| Apex Development & Construction | B | 2023 | Active |
| Asap General Contractors Inc | B + C36 | 2009 | Active |
| B & D Construction Co Inc | A + C21, HAZ | 2000 | Active |
| B H G Construction Inc | B | 2025 | Active |
| B V Construction Inc | A + C21 | 2005 | Active |
| B&D Equipment Rental & Engineering Inc | A + HAZ | 1976 | Active |
| Backyard Estates LLC | B | 2021 | Active |
| Best Building Services Inc | B | 1995 | Active |
| Better Choice Development Inc A | B | 2001 | Active |
| Big Sky Electric / Filanc A Joint Venture | A + C10 | 2009 | Active |
| Big Sky Electric Inc | A + C10 | 2008 | Active |
| Blackbird Construction Inc | B + C54 | 2005 | Active |
| Blok Modular Constructors Inc | A, B | 2019 | Active |
| Blue Collar Contractor Inc | B + C10 | 2013 | Active |
| Braeger Construction Inc | A, B + C27 | 1974 | Active |
| Bright Bulbs Electric Co Inc | B + C10 | 2015 | Active |
| Build Right L A | B | 2016 | Renew by Nov 30, 2026 |
| Buntich Mladen Construction Co Inc | A, B | 1988 | Active |
| C C C Construction Inc | B + C10 | 1993 | Active |
| C H E C Construction Inc | B | 2002 | Active |
| C L D Construction | B | 1992 | Active |
| C P C Inc | A + C34 | 2005 | Active |
| California Landscape & Design Inc | A, B + C23, C27, C53 +2 | 1990 | Active |
| California Rampworks | A, B | 2012 | Active |
| California Skateparks | A, B + C27 | 2011 | Active |
| California Skateparks | A, B + C27 | 2001 | Active |
| Capasso Construction Inc | B | 1977 | Active |
| Casa Verde 1993 Construction Landscape Maintenance And Design Inc | B + C27 | 2026 | Active |
| Century Modern General Contractors LLC | B | 2024 | Active |
| Charm Zone Construction Inc | B | 2023 | Active |
| Clark Rob Construction & Design Inc | B | 1995 | Active |
| Classic Restoration & Construction | B | 2016 | Active |
| Clear Cloud Solutions Inc | B + C10, C36 | 2015 | Active |
| Code 4 Roofing Specialist LLC | B + C39, C46 | 2023 | Active |
| Condominium Construction Services Inc | B + C39 | 1994 | Active |
| Condor Electric Co | A + C10 | 1982 | Active |
| Constructify Inc | B + C8 | 2023 | Active |
| Cooper Roofing Service Inc | B + ASB, C39 | 1995 | Active |
| Core Construction Group | B | 2018 | Active |
| Cornerstone Construction Service Inc | B + C8, C29 | 2013 | Active |
| CPR Remediation | B2 | 2026 | Active |
| Craftsman Built Construction | B | 2024 | Active |
| Craftsman Construction | B + C8 | 1993 | Active |
| CTD Contracting Inc | B | 2010 | Active |
| Curiel Painting And Construction Company | B + C33 | 2025 | Active |
| D J Construction Services Inc | B | 2007 | Active |
| Diamond Homes And Construction Inc | B | 2003 | Active |
| Duke Plumbing Inc | A + C36 | 1982 | Active |
| Earthrite Engineering LLC | A + C57 | 2000 | Active |
| Elder Industries Inc | B + C27, C36 | 1982 | Active |
| Electric Vehicle Construction | B + C10 | 2020 | Active |
| Epic Design Build Inc | B | 2001 | Active |
| Fancy Home Improvement Inc | B | 2026 | Active |
| Finest Remodeling & Construction Inc | B + C15, C54 | 2017 | Active |
| Fittante & Son Inc | B + C27 | 2022 | Active |
| Fuelex | B | 2026 | Active |
| G F R Enterprises Inc | B | 2025 | Active |
| Gentry J Garrett General Engineering Incorporated | A | 2014 | Active |
| GHW Design & Build Inc | A, B | 2014 | Active |
| Gold Coast Solutions | B | 2019 | Active |
| Goldenboy Construction Inc | B | 2011 | Active |
| Gott W D Construction Co | A, B + C8 | 1972 | Active |
| Haven Cleaning And Restoration Inc | B | 2019 | Active |
| Hexagon Builders Inc | B | 2026 | Active |
| Hometime | B + D28 | 2014 | Active |
| Hostetler Construction Inc | B | 2017 | Active |
| Huehl Construction Inc | B | 2005 | Active |
| Huerta Construction And Remodeling | B | 2019 | Active |
| Inland Empire Energy | B + C10, C39 | 2017 | Active |
| Inland Highway Services Corp | A | 2017 | Active |
| Inland Pacific Roofing Co LLC | B + C39 | 1987 | Active |
| Interiors Plus | B + C15, C54, D52 | 1991 | Active |
| Ireland Pro Systems | B + C7, C10 | 1998 | Active |
| J & J Property Maintenance Inc | B | 2023 | Active |
| J C E Equipment Inc | A + C12 | 2006 | Active |
| J E Plount And Company Inc | A, B + C10, C12, C34 +2 | 1981 | Active |
| J T Site Services | A, B | 2014 | Active |
| JDC Energy | B + C10 | 2017 | Active |
| Jec Enterprises Inc | B | 2011 | Active |
| JMV Concrete Inc | B2 + C8 | 2024 | Active |
| Johnson Larry Construction Inc | B | 1984 | Active |
| Klutch Construction Inc | B | 2020 | Renew by Oct 31, 2026 |
| Lanko Construction Corp | A + C21, HAZ | 2008 | Active |
| Legacy Builders Construction Inc | B | 2016 | Renew by Nov 30, 2026 |
| Lewis Management Corp | A, B | 2016 | Active |
| Lewis Operating Corp | A, B | 2001 | Active |
| Lifestyle Landscapes Inc | A, B + C8, C27, C29 +1 | 1999 | Active |
| Linco Group Inc | B | 2026 | Active |
| Lord Constructors Inc | B | 1980 | Active |
| M & M Electric Co | B + C10 | 1989 | Active |
| M J 3 Construction Inc | B | 2017 | Active |