| 5 Star GC Inc | B | 2018 | Active |
| A I W Engineering | A | 2021 | Active |
| A K Best Construction Inc | B + C10 | 2017 | Active |
| A S A P Paving LLC | A + C12, C32 | 1984 | Active |
| Aaron Plumbing | B + C36 | 2017 | Active |
| Action Home Pros Inc | B + C17, D24, D41 | 2001 | Active |
| Almex USA Inc | A | 2001 | Active |
| Apex Paving Co | A | 2025 | Active |
| Aquaphoenix Builders | B + D64 | 2018 | Active |
| Ascend Construction Inc | B | 2017 | Active |
| B H Design Construction | B | 2020 | Active |
| Barojas Electric Inc | B + C10 | 2021 | Active |
| Bichai Construction Corporation | B | 2021 | Active |
| Bitech Construction Company Inc | A, B + C8, C12, HAZ | 2003 | Renew by Dec 31, 2026 |
| Bixell Construction Inc | B | 2024 | Active |
| Black-Top Construction Inc | A, B | 2026 | Active |
| Blanco Construction Inc | A | 2019 | Active |
| Blue Plan Construction Inc | B | 2018 | Active |
| Brian's Pool Plastering Inc | B + C8, C29, C53 | 2003 | Active |
| Brodmann Brothers Inc | B | 2021 | Active |
| Buffalo Construction | B | 2016 | Active |
| Buffalo TJ Construction Inc | B | 2019 | Active |
| Caleb Construction Inc | B + C27, C51 | 2000 | Active |
| California Construction LLC | B | 2024 | Active |
| Calpacific CPC Construction Inc | B | 2021 | Active |
| Comax Construction Corporation | B | 2026 | Active |
| Compac Construction | B + C36 | 1980 | Active |
| Copp Contracting Incorporated | A | 1979 | Active |
| CS Tech Construction | B | 2023 | Active |
| CSL Builders | B | 2013 | Active |
| Cypress Bath LLC | B | 2025 | Active |
| D B C Associates Inc | B | 2006 | Active |
| Danny Express General Contractor Corp | B | 2025 | Active |
| Data Specialties Inc | B + C10 | 1991 | Active |
| Davis Paul Restoration Of Southern California | B + C36 | 1987 | Active |
| Deco Painting | B + C33 | 2016 | Renew by Dec 31, 2026 |
| Drake Controls - West LLC | A | 2019 | Active |
| Efficient Power Corp | B | 2026 | Active |
| Elione Energy Inc | B + C10, C20 | 2021 | Active |
| Ells M J Construction Inc | B | 1989 | Active |
| Farrer Construction Inc | B | 2009 | Active |
| Finish Line Contractors Inc | B + C20, C38 | 2026 | Active |
| Firm Construction Inc | B | 2005 | Active |
| Flat & Vertical Inc | B + C12, C21, D06 | 1983 | Active |
| Floor Center | B + C15 | 2005 | Active |
| Fortte Engineering | A | 2017 | Active |
| Fuelnova Company LLC | A + HAZ | 2026 | Active |
| G S R Construction Inc | B | 2018 | Active |
| Gaka Construction Inc | B | 2025 | Active |
| Galaxy Builders Group Inc | B + C10 | 1996 | Active |
| GC Prime | B | 2025 | Active |
| Global Management Systems | A, B | 1991 | Active |
| Greco Design And Development Inc | B + C45 | 2014 | Active |
| GRP Contractors Inc | A + C34 | 2014 | Active |
| Halco General Construction Inc | B + C8, C39 | 2023 | Active |
| Hfa Construction Inc | B | 2024 | Active |
| Incotechnic Inc | A, B + C10, C36 | 2008 | Active |
| Interior Building Construction | B | 2022 | Active |
| Ironwave Builders | A, B | 2025 | Active |
| J & E Asphalt Maintenance | A + C8 | 2002 | Active |
| J C Creative Construction Inc | B | 2012 | Active |
| J J Western Construction Inc | B | 2020 | Active |
| J S Precision Corp | B | 2009 | Active |
| JB 1 Management Inc | B | 2022 | Renew by Dec 31, 2026 |
| John L Hunter & Associates Inc | A + HAZ | 1989 | Active |
| JP Construction & Restoration Services Group Inc | B | 2026 | Active |
| KB Construction & Painting Inc | B + C33 | 2018 | Renew by Nov 2, 2026 |
| Kitchen Cabinets Express Inc | B + C6 | 2006 | Active |
| KN Builders Group | B | 2022 | Active |
| Knockout Time Construction | B + C33 | 2025 | Active |
| L L P Construction | B | 2009 | Active |
| Larios Construction | B + D63 | 2020 | Active |
| LCR Remodeling Inc | B | 2026 | Active |
| Lucaci Construction LLC | B | 2025 | Active |
| M T C Construction Co & Property Services Inc | B | 2014 | Active |
| McCoy Pool | B + C53 | 2018 | Active |
| Metall Electric Inc | B + C10 | 2015 | Active |
| MG Elite Construction Inc | B | 2022 | Active |
| MK Davidson Inc | A, B + C7, C8, C10 +4 | 2023 | Active |
| MNG Engineering & Maintenance Inc | A + D03, D16, D21 +7 | 1992 | Active |
| MPCS Construction Company | B | 2025 | Active |
| NDC For Design And Construction Inc | B | 2017 | Active |
| New Space Construction | B | 2011 | Active |
| Noblemen Development Inc | B | 2019 | Active |
| NPC Group Inc | B | 2023 | Active |
| Nu Way Design Center | B | 2023 | Active |
| Oc's Best Construction | B | 2026 | Active |
| Ortiz Tractor/Construction Services | A, B + C8, C12 | 1982 | Active |
| Pacific Coast Geo Inc | A | 2024 | Active |
| Pacific Paint And Construction Inc | B + C33 | 1997 | Active |
| Park Vision Construction Inc | B | 2021 | Active |
| Pennington Eric Termite & Construction Inc | B + D38 | 2000 | Active |
| Phoenix Roofing | B + C8, C39 | 2006 | Active |
| Pinmor Construction LLC | B | 2019 | Active |
| Platform Construction | B | 2024 | Active |
| Pliant Electric & Lighting | B + C10 | 2024 | Active |
| Power Design | B + C10 | 2018 | Active |
| Preferred General Contractor Services Inc | B | 2024 | Active |
| Priority Foundations Inc | B | 2025 | Active |
| Pro Technician Group | B | 2021 | Active |