| 5gold Construction Inc | B | 2026 | Active |
| A & F Enterprises Inc | B | 2022 | Renew by Dec 31, 2026 |
| A 1 A Engineering & Construction Inc | A, B + C12, C21 | 2000 | Active |
| A Homes LLC | B | 2024 | Active |
| A P U General Construction Inc | B | 2018 | Active |
| A Plus Heating & Air Conditioning Co | B + C10, C20, C36 | 1999 | Active |
| Aa Kuem Kang Construction Co | B | 2017 | Active |
| Abk Incorporated | B + C39, D12 | 2024 | Active |
| Ad Great Construction Inc | B | 2025 | Active |
| All Star Construction | B | 2026 | Active |
| Allen R J Inc | A + C21, D06 | 1992 | Active |
| Allkimi | B | 2025 | Active |
| Alpha Don Construction Inc | B + C36 | 2006 | Active |
| American Continental Engineering Corp | A, B + C4, C10, C20 +2 | 1992 | Active |
| American Renavatu Builders Corp | B | 2018 | Active |
| Anchor Remodel | B2 | 2026 | Active |
| Arkstone Construction | B | 2026 | Active |
| B T V Inc | B + C36 | 1996 | Active |
| Bao Builder & Design LLC | B | 2023 | Active |
| Best Techs Contracting Design Build Remodel Inc | B | 2016 | Active |
| Blue Vision Construction Inc | B | 2026 | Active |
| Blumar Development Inc | B | 2026 | Active |
| BPS Builder | B | 2022 | Active |
| Bradley & Watkins LLC | B + C15, C54 | 2025 | Active |
| Brico Builders Inc | B | 2010 | Active |
| Brito Drywall | B + C9 | 2019 | Active |
| Bry Construction Inc | B | 2005 | Active |
| Build Max Construction Inc | B | 2012 | Active |
| Buildwave Construction Inc | B | 2025 | Active |
| Byer Tom Roofing Service Inc | B + C39 | 1989 | Active |
| C C N Construction | B | 2015 | Active |
| C J Works Inc | B | 2026 | Active |
| Ca Home Art Inc | B + C36 | 2022 | Active |
| California Tile | B + C54 | 2022 | Renew by Nov 30, 2026 |
| Catalina MH Inc | B + D34 | 2026 | Active |
| Cazarez Construction Inc | B | 2013 | Active |
| Cge Construction Inc | A, B + C21 | 1993 | Active |
| Cima C M & D | B | 1998 | Active |
| Coast Engineering Contractors Inc | A, B + C20, HAZ | 2004 | Active |
| Coastline Development Inc | B | 1986 | Active |
| Collins Mitchell Dean Construction Inc | B + C5 | 1992 | Active |
| Community Action Partnership Of Orange County | B | 2010 | Active |
| Construction Solution Service Inc | B | 2021 | Active |
| Constructionx | B | 2023 | Active |
| Contech Construction Inc | B | 2016 | Active |
| Cool White Sciences Inc | A, B | 2018 | Active |
| CSC Construction | B | 2016 | Active |
| Custom Dream Builders Inc | B + C7, C10 | 2001 | Active |
| D & S Construction Services Inc | B | 2005 | Active |
| Delta Builder And Remodeling Inc | B + C16, C36 | 2025 | Active |
| Delta Construction Co | B | 2008 | Active |
| DG & Co Construction Inc | B | 2018 | Active |
| Diaz Hrmns Construction | B | 2023 | Active |
| Dick Howell's Hole Drilling Service Inc | A + D09 | 1981 | Active |
| Dream Construction & Remodeling Inc | B + C33 | 2016 | Renew by Nov 30, 2026 |
| Duff G Construction Inc | B + C33 | 2018 | Renew by Dec 31, 2026 |
| Dupre Enterprises | B + C10 | 2012 | Active |
| DV Construction Inc | B | 2024 | Active |
| Earth Construction & Mining | A + C21 | 1992 | Active |
| Egm Construction | B | 2022 | Active |
| Elite Residential Solutions | B2 | 2026 | Active |
| Elite Revival Builders Inc | B | 2026 | Active |
| Energy Upgrades Inc | B + C20 | 2011 | Active |
| Envise | B + C10, C20, C36 | 2015 | Active |
| Equity Building Company | B | 2025 | Active |
| Eros Builders | B | 2025 | Active |
| Essential Design Innovator Inc | B | 2018 | Active |
| Ew Builders Group | B + C33 | 2023 | Active |
| Exbon Development Inc | A, B + C10, C20, C36 +1 | 2005 | Active |
| Expected Construction | B | 2026 | Active |
| Facility Service Construction | B + C2 | 1989 | Active |
| Fav General Construction Inc | B | 2023 | Active |
| FG Real Estate Development LLC | A, B | 2021 | Active |
| Fieeiki Construction & Build Inc | B | 2025 | Active |
| Frametech Construction Inc | B + C5 | 2007 | Active |
| Full Swing Construction Inc | B | 2011 | Active |
| G B C Express Inc | A, B | 2017 | Active |
| G Brothers Construction Inc | B + C2, C9 | 1998 | Active |
| Gingy's General Construction Inc | B | 2021 | Active |
| Golden Construction LLC | B | 2023 | Active |
| Golden Express Construction Inc | B + C10 | 2017 | Active |
| Greenbelt Developers LLC | B | 2022 | Active |
| Grsi | A + C10, C32 | 1998 | Active |
| H & M Remodeling Inc | B | 2023 | Active |
| Hbee Construction Inc | B | 2020 | Active |
| Homestone Builders Inc | B | 2025 | Active |
| Hyun Sun Construction | B | 2020 | Active |
| I M Construction Inc | B + C39 | 2015 | Active |
| Image Cabinet And Stone Inc | B | 1989 | Active |
| Indoor And Out Construction Inc | B + C36 | 2016 | Renew by Dec 31, 2026 |
| Innovative Construction | B | 2016 | Active |
| Innovative Door Solutions Inc | B + C17, D28 | 1991 | Active |
| Innovative Stone Construction | B + C10 | 2020 | Active |
| J General Contractor | B | 2022 | Active |
| J S K Construction Inc | B | 2019 | Active |
| Jac Property Maintenance Services Inc | B | 2010 | Active |
| JM Custom Inc | B + C33 | 2023 | Active |
| JS Better Builders Co | B | 2025 | Active |
| JSC Construction & Remodeling Inc | B | 2024 | Renew by Nov 30, 2026 |
| Judge Netting Inc | A, B + C10, C13, D31 +1 | 2000 | Renew by Dec 31, 2026 |