| 9001 Build Group | B + C6 | 2026 | Active |
| A Allbright Inc | B + C33 | 1993 | Active |
| A S C Process Systems Inc | A | 1991 | Active |
| Aaa Facility Services | B + C10, C20, C36 | 1997 | Active |
| Aardvark Enterprises Inc | B | 2004 | Active |
| Ace Collective Corp | B | 2025 | Active |
| Adu Homes Construction | B | 2026 | Active |
| Advanced Design Construction Inc | B + C27, C53 | 1992 | Active |
| Alpha Group Contracting | B + C10, C20 | 2017 | Renew by Oct 31, 2026 |
| American Craftsman | B | 1997 | Active |
| American Remodeling | B2 | 2022 | Active |
| Aqua Blue Construction Pools And Spas | B + C53 | 2011 | Active |
| Arman Brothers Inc | A | 2024 | Active |
| Atm Remodeling & Development Inc | B | 2024 | Active |
| Avsar Construction Development Inc | A, B + C8, C21, C27 | 2018 | Active |
| Best One And Sons Construction Inc | B | 2011 | Active |
| Blaha Construction & Development | B + C8, C29 | 1990 | Active |
| Boulder Builders Inc | B + C33 | 2008 | Active |
| Bristol Restoration Inc | B | 2025 | Active |
| Bullet Proof Builders Inc | B | 2012 | Active |
| C & F Building Solutions Inc | B | 2018 | Active |
| C&S Quality Construction Inc | B | 2024 | Active |
| Ca Alliance Builders Inc | B | 2018 | Renew by Oct 31, 2026 |
| Cal Star Engineering Inc | A, B + C21 | 2015 | Active |
| California Production Builders | B | 2014 | Renew by Nov 30, 2026 |
| California Structural Concepts Inc | B | 2008 | Active |
| Calterra Grading & Site Services Inc | A, B | 2012 | Active |
| Carter Design & Remodeling Inc | B + C36 | 2009 | Active |
| Clear Vision Construction Consulting & Design Corporation | B + C10 | 2010 | Active |
| Commercial Medical Residential Construction Inc | B | 2003 | Active |
| Crackjack Handyman | B | 2017 | Active |
| Croisdale Group Inc The | B + C8 | 1988 | Active |
| Crown Door Incorporated | B + D28 | 2007 | Active |
| Cuest Corp | B | 2008 | Active |
| CWC Construction | B | 2025 | Active |
| Daniar Construction Group Inc | B | 2019 | Active |
| Dannick Design Inc | B | 2001 | Active |
| Dawg Builders | B + C6, C10 | 2025 | Active |
| Devtec LLC | B | 2025 | Active |
| Drexler Mark & Associates Inc | B + C6 | 2001 | Active |
| Durand Builders | B | 2022 | Active |
| Eagle Summit Builders Inc | B | 2010 | Active |
| Easton Electric Inc | B + C10 | 1994 | Active |
| Econstruct Inc | B + C54 | 2011 | Active |
| Efs West | A, B + C10, HAZ | 2003 | Active |
| Elroy Glen Construction Inc | B | 1998 | Active |
| Euro Design Construction Inc | B + C10, C36 | 1994 | Active |
| F B Builders | B | 2018 | Active |
| Ferguson And Melvin Co. | B + C39 | 1989 | Active |
| FFKM Engineering Construction, Inc | A | 2014 | Active |
| Forza Construction Inc | B | 2008 | Active |
| Garrett Construction Inc | B | 2012 | Active |
| Gemini Restoration Co | B | 2007 | Active |
| Gerlund Builders Inc | B | 2010 | Active |
| Gfi Electrical | B + C7, C10 | 1999 | Active |
| Gothic Landscaping Construction Division | A + C27 | 1984 | Active |
| GR Construction Solutions LLC | B | 2026 | Active |
| Green Convergence | B + C10, C39 | 2009 | Active |
| Greenleaf Custom Design And Development Group | B | 2010 | Active |
| Griswold Construction Services Inc | B | 2024 | Active |
| Groundwerks | A, B + HAZ | 2025 | Active |
| Groundwork Engineering Inc | A, B | 2017 | Active |
| Heres How Construction Inc | B | 2001 | Active |
| Horn's Construction Inc | B | 2024 | Active |
| Im Your Construction Group | B | 2023 | Active |
| Ims Construction Inc | B + C10, C36 | 1995 | Active |
| Intertex General Contractors Inc | A, B + C20 | 1985 | Active |
| J T M Corp | B | 2022 | Active |
| J T Wimsatt Contracting Co Inc | B + C8, D06, D21 | 1996 | Active |
| J W General Contracting Inc | B | 2007 | Active |
| Johnston Vidal Projects Inc | B + C27, C53 | 2024 | Active |
| JSN Construction Inc | B | 2016 | Active |
| Keane Constructors Inc | B | 1988 | Active |
| KWC Construction Inc | B | 2012 | Active |
| Landscape Development Inc | A + C27 | 1983 | Active |
| LBFC General Construction Inc | B | 2016 | Active |
| Luxury Bath Technologies Pacific Coast Inc | B | 2018 | Active |
| Magic Maintenance Inc | B + C33 | 1989 | Active |
| Masters Construction Inc | B + C20 | 2017 | Active |
| Middleton Investments Inc | B + C8 | 2019 | Active |
| Millan Johnnie Ray Construction Inc | B | 1994 | Active |
| Millennial Engineering | A + HAZ | 2019 | Active |
| Mirage Woodworks Inc | A, B + C6 | 2003 | Active |
| Momentous Construction Inc | B | 2026 | Active |
| Morning Star Services Co | B + C36 | 2007 | Active |
| MSBB General Builders LLC | B | 2026 | Active |
| MSH Development Group Inc | A, B + D49, D63 | 2022 | Active |
| MSH Development Inc | A, B | 2025 | Active |
| N/S Corporation | B | 1995 | Active |
| Nabers Stone Co Inc | B + C8, C29, C54 +1 | 2010 | Active |
| Nexgen Construction Solutions Inc | B | 2019 | Active |
| Oakridge Landscape Inc | A, B + C27, D49 | 2001 | Active |
| On Point Commercial Solar Inc | B + C10, C46 | 2024 | Renew by Nov 30, 2026 |
| P E B Inc | B + C10 | 1996 | Active |
| Pacific Building And Design | B + C10 | 1985 | Active |
| Paul Davis Restoration Of Santa Clarita | B | 1988 | Active |
| Performance Contracting Services Inc | B + C10, C20 | 2026 | Active |
| Polo Robert Building Group Inc | B | 2020 | Active |
| Preferred Commercial Property Management Inc | B + C10 | 2011 | Active |
| Prime Construction Services | B + C36 | 2022 | Active |