| Justin Construction | B | 2002 | Active |
| Kba Construction | B | 2023 | Active |
| Kim's Interior & Flooring Inc | B + C15 | 2011 | Active |
| KK Home Improvements LLC | B | 2026 | Active |
| L & S Core Construction Inc | B | 2017 | Active |
| L A L Services Inc | B | 2005 | Active |
| L M O Like My Own Inc | B + D12 | 2009 | Active |
| L P Design | B + C36 | 2017 | Active |
| L&I Handyman LLC | B | 2022 | Active |
| Landmark Builder And Developer Inc | B | 2025 | Active |
| Liska Constructors Inc | A, B + C51, C60 | 1980 | Active |
| Longview Construction & Engineering | A, B | 2021 | Active |
| Los Al Builders LLC | B + C54 | 2019 | Active |
| LVS Communications Inc | A + C7 | 2023 | Active |
| M & X Construction | B | 2024 | Active |
| Manqueros & Sons Construction | B | 2026 | Active |
| Master Construction Of Ca Inc | B | 2021 | Active |
| McDolphin General Construction Inc | B | 2025 | Active |
| Mec Construction | B + C10, D21 | 2017 | Active |
| Mike's Pro Build | B | 2024 | Active |
| Model Builders Inc | B | 2003 | Active |
| Modern Muse Construction Inc | B | 2021 | Active |
| MXC Construction | B | 2025 | Active |
| N I C E Landscape & Maintenance Incorporated | B + C27 | 2005 | Active |
| Nam's Construction | B + C27 | 2006 | Active |
| Nay Remodeling & Construction | B | 2023 | Active |
| New Creation Construction | B | 2024 | Active |
| New Era Contractors LTD | B | 2009 | Active |
| New Heights Building & Maintenance | B + C2 | 2020 | Active |
| New World Construction & Investment Inc | B | 2013 | Active |
| Newimage Restoration Inc | B + C21, C33 | 2015 | Active |
| Nexus Energy Systems Inc | B | 1978 | Active |
| NT Commercial Builders Inc | B | 2006 | Active |
| Oc Adu Studio | B | 2026 | Active |
| Oc Builder One | B | 2024 | Renew by Nov 3, 2026 |
| Oc Home Restoration And Remodeling Inc | B | 2025 | Active |
| Oc Star Construction Inc | B + C20 | 2020 | Active |
| Ocp Solar Electrical Services | B + C10 | 2025 | Active |
| Olivares Construction | B + C33 | 2023 | Active |
| One - Way Construciton Inc | B | 2004 | Active |
| Orange County Carpentry | B + C5, C6, C17 | 2002 | Active |
| P V W Installs Inc | B + C17, D52 | 2020 | Active |
| Pacific Coast Framing & Construction | B | 2000 | Active |
| Pacific Exteriors Inc | B + C35 | 1998 | Active |
| Paintline Service Inc | B + C33 | 2008 | Active |
| Palenga Construction Corporation | B | 2021 | Active |
| Paradise Construction Inc | B | 2001 | Active |
| Penaloza General Contractor | B | 2025 | Active |
| Pioquintos Custom Builders LLC | B | 2025 | Active |
| Precision Shotcrete Innovations | A, B | 2007 | Active |
| Premier Builders | A, B + C10, C53 | 2014 | Active |
| Primal W & D Solutions | B + C17 | 2023 | Active |
| Professional Foundation Repair & Construction Inc | B | 2019 | Active |
| Q Builders LLC | B + C10, C20, C36 | 2023 | Active |
| QT General Contractor Inc | B | 2008 | Active |
| QTT Investments Inc | B | 2025 | Active |
| R & J Construction | B | 1978 | Active |
| R G Remodel | B | 2021 | Active |
| R T Contractor Corp | A, B + C10, C20, C36 | 1998 | Active |
| Redesign Construction Inc | B | 2019 | Active |
| Refla Construction | B | 2026 | Active |
| Renegade Construction Services Inc | B | 2021 | Active |
| Rich Builder And Home Renovations Inc | B | 2022 | Active |
| Rondell Restoration Inc | B | 2004 | Active |
| RSF Construction Inc | B + D12 | 2016 | Renew by Dec 31, 2026 |
| RW Doors Inc | B | 1985 | Active |
| Ryden Construction Inc | B + C10, C20, C36 | 2013 | Active |
| S C G America Construction Inc | A, B | 2015 | Active |
| Skylark Builders Inc | B | 2025 | Active |
| Slama G Company GSC Construction Management Inc | B | 2023 | Active |
| So - Cal Fab & Supply Inc | A | 2004 | Active |
| South Coast Building Supply | B | 2011 | Active |
| Southland Industries | B + C4, C10, C16 +4 | 1949 | Active |
| Stark Cabinets | B + C6 | 2024 | Active |
| STG Remodeling Inc | B2 | 2023 | Active |
| Sun's General Construction LLC | B | 2008 | Active |
| Sunny Studio Construction Inc | B | 2026 | Active |
| SWR & Sons LLC | B | 2026 | Active |
| T H P Construction Inc | B | 2018 | Active |
| T N C Construct Corporation | B + C36 | 2016 | Active |
| Tackney Geoffrey MC Cabe Inc | B | 2005 | Active |
| Ten14 Builders Inc | B | 2026 | Active |
| The Vine Construction Inc | B | 2025 | Active |
| Tin Construction Inc | B + C10 | 2007 | Active |
| Ultimate Konstruction Design & Build Inc | B | 2026 | Active |
| Vasquez Construction And Remodeling Inc | B | 2021 | Active |
| VDL Home Solutions Inc | B | 2021 | Active |
| Vea Construction And Design LLC | B | 2005 | Active |
| Video Voice Data Communications | A, B + C7, C10 | 2003 | Active |
| Vieyra General Construction Inc | B | 2025 | Active |
| Viliami Construction Inc | B | 2026 | Active |
| Vipro LLC | B | 2025 | Active |
| VNV Builders Group Inc | B | 2023 | Active |
| Wecan Build LLC | A, B | 2024 | Renew by Dec 31, 2026 |
| West Coast Construction Af | B | 2024 | Renew by Dec 31, 2026 |
| Western Contracting Solutions Inc | B | 2025 | Active |
| Wolfe Construction | B | 2017 | Active |