| Energy Product Experts LLC | B | 2025 | Active |
| Enpro Grid Technologies LLC | B | 2021 | Active |
| Enviroworks Engineering | A | 2019 | Active |
| F P Contracting Inc | B | 2003 | Active |
| Fedvet Construction | A, B | 2016 | Active |
| Finalized Construction Inc | B | 2017 | Active |
| FJC General Contractor Inc | B | 2021 | Active |
| Fletcher Home Construction | B | 2023 | Active |
| Fortified Foundations Inc | B | 2007 | Active |
| Full Circle Builders Inc | B | 2015 | Active |
| Fullhouse Restoration | B | 2018 | Active |
| G J H Development Inc | B | 2008 | Active |
| G R W General Engineering Incorporated | A | 2014 | Active |
| G S I | A, B | 2002 | Active |
| Garney Pacific Inc | A | 2014 | Active |
| Gill D A Company Inc The | B | 2009 | Active |
| Glenna J Construction Inc | B | 2000 | Active |
| Go Big Construction | B | 2008 | Active |
| Goodman Remodeling & Renovations Inc | B2 | 2025 | Active |
| Goodno Construction Inc | B | 1989 | Active |
| Gottfeld Construction | B | 1992 | Active |
| Gottschalk Construction Inc | B | 2022 | Active |
| Great West Interiors Inc | B | 2010 | Active |
| Green Light Building Services Inc | B | 2014 | Active |
| Grimm Construction Engineering | A, B | 2024 | Active |
| H F Builders Co Inc | B | 2022 | Active |
| H W D Mobile Home Contracting | B | 2019 | Active |
| Habitat For Humanity Inland Valley Inc | B | 2017 | Active |
| Haley Brent Construction Inc | B | 2008 | Active |
| Hammer Built | B | 2021 | Active |
| Handy Gabe Services | B2 | 2022 | Active |
| Haven Home Remodeling Corp | B | 2024 | Active |
| Heartwell Builders Inc | B | 2025 | Active |
| Helie Builders | B | 2006 | Active |
| Helpful Handy Pro LLC | B | 2026 | Active |
| Hemet Roofing Co | B | 2007 | Active |
| Hexagon Build Co | A, B | 2025 | Active |
| Highland Floor Covering Inc | B | 1989 | Active |
| Highlands Construction Group LLC | B | 2026 | Active |
| Hill BC Inc | B | 2017 | Active |
| Hollis M Construction | B2 | 2025 | Active |
| Holloway Tile And Stone Works | B | 2008 | Active |
| Home Innovators Inc | B | 2011 | Active |
| Home Perfect Restoration Inc | B | 2013 | Active |
| HS Contractors Inc | B | 2017 | Active |
| Hunco Development Inc | B | 1974 | Active |
| Infinity Construction Corp | B | 2024 | Active |
| Infinity Construction General Building Contractor | B | 2014 | Active |
| Inland Erosion Control Services Inc | A | 2001 | Active |
| Inland Valley Engineering Inc | A | 2004 | Active |
| Inland Valley Pipeline Inc | A | 2006 | Renew by Nov 30, 2026 |
| Innovative Construction | B | 2024 | Renew by Oct 31, 2026 |
| Integrated Construction Group | B | 2015 | Active |
| Integrity Leveling Inc | B | 2025 | Active |
| Italian Construction Inc | B | 2008 | Active |
| J C & Sons | B | 2007 | Active |
| J C Framing Construction Inc | B | 2007 | Active |
| J M J Construction | A, B | 2009 | Active |
| J M K Builders Inc | B | 2021 | Active |
| J T Stephenson Landscape | B | 2002 | Active |
| Jaimo Construction | B | 2025 | Active |
| JP Renovations And Design LLC | B | 2026 | Active |
| JTB Contracting Inc | A | 1999 | Active |
| JTH Construction Inc | B | 2002 | Active |
| JWJ Construction Services Inc | A, B | 2025 | Active |
| K Belle Kreations LLC | B | 2023 | Active |
| K2c Holdings Inc | B | 1989 | Active |
| Kallen Contracting Inc | A, B | 2007 | Active |
| Kaydann Corporation | B | 2015 | Active |
| Kee Solutions Inc | A | 2019 | Active |
| Keeton Construction Co Inc | B | 1986 | Active |
| KGG Concrete Construction | A, B | 2023 | Active |
| Kid Construction Inc | B | 2020 | Active |
| Kilter Termite And Pest Control | B | 2009 | Active |
| King Stud Contracting Inc | B | 2015 | Active |
| Koll Custom Homes Inc | B | 2013 | Active |
| KRJ Construction | B | 2025 | Active |
| L B Structural Inc | B | 2019 | Active |
| L J Ames Construction Inc | B | 2010 | Active |
| Lackey Grading Inc | A | 2002 | Active |
| Lam & Son Construction | B | 2011 | Active |
| Lanik Enterprises Inc | A, B | 1984 | Active |
| Lawyer James Enterprise Inc | B | 1987 | Active |
| Legacy Group Inc The | B | 2001 | Active |
| Lifescape Builders Inc | B | 2017 | Active |
| Lowry Construction Service | B | 2022 | Active |
| Luevano Corporation The | B | 2017 | Active |
| Lunoor Construction Inc | A, B | 2017 | Active |
| M W Services Inc | A, B | 2000 | Active |
| Malek Engineering And Construction | A, B | 2025 | Active |
| Malek Sean Engineering And Construction | A, B | 1988 | Active |
| Mana Building Co | B | 2025 | Active |
| May Development | B | 2026 | Active |
| MC Coy Don Corporation | A | 1995 | Active |
| McGee Industries Inc - California | B | 2018 | Active |
| McGrant Engineering | A | 2024 | Active |
| McMillan Vision Inc | B | 1988 | Active |
| Medearis Construction Company | B | 1988 | Active |
| Menifee Roofing Co | B | 2009 | Active |
| Mercer Construction Co | A, B | 1981 | Active |