| 1st Solution Construction Service | B | 2020 | Renew by Nov 30, 2026 |
| 1st Step Restoration Inc | B | 2023 | Active |
| 2by4 Construction & Remodeling Inc | B | 2013 | Active |
| A&A Property Management LLC | B | 2026 | Active |
| Aaa Construction And Remodeling | B | 2017 | Active |
| Abdellatif Enterprises Inc | B + C5, D12 | 1992 | Active |
| Advanced Painting & Wood Repair | B + C33 | 1980 | Active |
| Aguilera Construction Inc | A, B + C39 | 2013 | Active |
| Ajax Construction Inc | B + C54 | 2016 | Renew by Dec 31, 2026 |
| Aliso Electric Inc | B + C10 | 1998 | Renew by Dec 31, 2026 |
| All Home Improvement Inc | B | 2013 | Active |
| Americal Construction Management Group Corp | B | 2010 | Active |
| American Disaster Cleaning Group Inc | B | 2021 | Active |
| American Environmental And Associates Inc | B + ASB, C2, C21 +1 | 2015 | Active |
| Aria Building Construction Inc | B | 2023 | Active |
| Atlas Cabinets Inc | B | 2022 | Active |
| B P H Construction Inc | B | 2006 | Active |
| Best Budget Remodeling LLC | B | 2025 | Active |
| Black Diamond Inc | B2 | 2025 | Active |
| BN Design Build Inc | B | 2020 | Active |
| Building Enhancement Network Inc | B + D12 | 2005 | Active |
| Buratti Construction Inc | B | 2007 | Active |
| C & M Builders Inc | B + C15 | 1979 | Active |
| C B I Consulting And Construction MGMT Inc | A, B | 2005 | Active |
| Cal Pro Construction Inc | B + C10, C20, C39 +1 | 1994 | Active |
| California Doors And Windows | B + C17 | 1988 | Active |
| Chaisson General Contractors Inc | B | 2025 | Active |
| Coastal Design Construction Inc | B | 2024 | Active |
| Covenant Construction | B | 2026 | Active |
| D2a Construction Inc | B | 2024 | Active |
| Davani & Company | B | 2005 | Active |
| DC Construction Management Team | B | 2008 | Active |
| Devina Inc | B + C54 | 2016 | Active |
| Diplomat Consultation & Management LLC | B | 2021 | Active |
| Ela Construction Inc | A, B | 1992 | Active |
| Enviromonitoring Services | A + HAZ | 1997 | Active |
| Eskan Development Group Inc | B | 2015 | Active |
| Estructura Oc Construction | B + C36, C43 | 2010 | Active |
| First Foundation | A, B | 2021 | Active |
| Foster B Construction Inc | B + C36 | 2012 | Active |
| Founders Group Construction | B + C12 | 2026 | Active |
| Framing Specialists Inc | B | 2011 | Active |
| Freund Construction Company Inc | B | 1992 | Active |
| General Construction Services Inc | A, B | 1988 | Active |
| Global Builders Inc | A, B | 2018 | Active |
| Golden Coast Design And Build Inc | B | 2026 | Active |
| Golden State Reo LLC | B2 + C49 | 2024 | Active |
| Groballi Construction Inc | B | 2014 | Active |
| Ground To Gable Inc | B | 2006 | Renew by Dec 31, 2026 |
| Haigh Construction & Development Inc | B | 2008 | Active |
| Homeclub Inc | B | 2026 | Active |
| Homelife Concepts | B | 2017 | Active |
| Horizon Underpinning LLC | A | 2001 | Active |
| Hotel Interiors Inc | B | 2003 | Active |
| J P Painting | B2 + C33 | 2018 | Active |
| J&Son Construction Inc | B | 2023 | Active |
| Jamey Clark Inc | B | 2005 | Active |
| Jivan Builders Inc | B | 2014 | Active |
| Julius Construction | B | 1989 | Active |
| Kash Construction Inc | B | 2017 | Active |
| Kitchen Art Floor And Bath | B + C15 | 2011 | Active |
| Knox Contracting Inc | B | 1996 | Active |
| Kondor Builders Inc | B | 2016 | Active |
| L&R Construction | B | 2026 | Active |
| Laguna Hills Construction Inc | B | 2019 | Active |
| Lla Builders | B | 2005 | Active |
| Logan Construction | B | 2018 | Active |
| Luke Roofing Inc | B + C39 | 1993 | Active |
| M & J Star Construction Inc | B | 2006 | Active |
| Mac Flooring Inc | B2 + C15, C54 | 2010 | Active |
| MBK Office | B + C15, C33, C54 +1 | 1984 | Active |
| Melilli David Company | B | 1986 | Active |
| Moz Construction Corp | B | 2021 | Active |
| My Reno.Construction Inc | B | 2026 | Active |
| Nabli Development And Construction | B | 2011 | Active |
| Nacm Construction | B | 2025 | Active |
| Nelson Construction Co | B + C29 | 2015 | Active |
| Nessa Construction Corporation | B | 2023 | Active |
| Oc Quality Builders LLC | B | 2026 | Active |
| Onyx GC | B | 2024 | Active |
| Orange Coast Property Development Inc | B | 2024 | Active |
| Orangeblue General Contractors | A, B | 2021 | Active |
| Pacific Closet & Garage | B + C10, D34 | 2013 | Active |
| Pegasus Remodeling Inc | B | 2011 | Active |
| Pgi Construction Inc | A, B + C27 | 2026 | Active |
| Plat Construction Inc | B + C10 | 2016 | Active |
| Premier Pools & Spas | B + C36, C53 | 2001 | Active |
| Principle Design And Construction Inc | B | 2012 | Active |
| Quality Concepts International Inc | B + C43 | 2011 | Active |
| R J M Construction Solutions Inc | B | 2018 | Active |
| R2b Engineering | A, B | 2017 | Active |
| Renewal By Andersen Greater Los Angeles | B + C17 | 2014 | Active |
| Revco Solar Engineering Inc | B + C10, C46 | 1980 | Active |
| Richard J Hagan Construction Inc | B | 1990 | Active |
| Riley Bower Inc | B | 1984 | Active |
| Royal Crown Kitchen & Bath LLC | B | 2025 | Active |
| Rynor Construction A Partnership | B + C27 | 2020 | Active |
| S D C Engineering Inc | A, B + C8, C27, D06 +3 | 2013 | Active |
| S T A T Drywall | B + C9 | 2014 | Active |
| SDB | B | 2021 | Active |