| 1 Dream Home Renovations | B, B2 | 2024 | Renew by Nov 30, 2026 |
| 4j's Construction Inc | B | 2026 | Active |
| 5 Brother's Painting & General Construction Inc | B + C33 | 2019 | Active |
| 5 Star Construction And Remodeling Inc | B | 2022 | Active |
| A A B Innovation Construction & Remodel Inc | B | 2019 | Active |
| A J And E General Construction Inc | B + C9 | 2016 | Active |
| A O Construction & Renovations | B | 2024 | Renew by Dec 31, 2026 |
| A O Kraft Inc | B | 2023 | Active |
| A R Electrical & Plumbing Inc | B + C10, C36 | 2015 | Active |
| A1 Construction | B + C36, C42 | 2003 | Active |
| Abdo Contractors-American Rooters 4 Less | B + C36 | 2004 | Active |
| Ace Engineering | A | 2023 | Active |
| Ace Of Trades Construction Inc | B | 2008 | Active |
| Afg Trinity Construction | B | 2019 | Active |
| Alexa's Maintenance Inc | B | 2026 | Active |
| All In One Home Renovation | B | 2026 | Active |
| All Pro Construct | B | 2023 | Active |
| Alliance Development And Construction Inc | B | 2009 | Active |
| American Septic Services Inc | A + C42 | 2006 | Active |
| Arc General Contractors | B | 2023 | Active |
| Ascend Building Co | B | 2026 | Active |
| Atc Builders Inc | B | 2023 | Active |
| Basco Construction Services Inc | B + C10 | 2006 | Renew by Nov 30, 2026 |
| Big Mountain | B | 2009 | Active |
| Bonadiman Joseph E & Associates Inc | A, B | 2008 | Active |
| Bond Lance Installations Inc | B + C10, C16, C36 | 2004 | Active |
| Brickley Environmental | B + ASB, C21, C22 +3 | 1991 | Active |
| Bridgewater Equipment Inc | A | 1992 | Active |
| Bright Star Construction | B | 2024 | Active |
| BRS Restoration Inc | B | 2016 | Active |
| Builder City Construction Inc | B + C36 | 2019 | Active |
| Buildex Construction | B | 2024 | Active |
| C & J Construction | B | 1999 | Active |
| C P R A+construction | B | 2024 | Active |
| Cal Pros Renovation & Construction Inc | B | 2024 | Active |
| Cal West Construction | B | 2025 | Active |
| California Point General Engineering Contractors Inc | A | 2020 | Active |
| California Pumping & Sanitation Inc | A + C36, C42 | 2010 | Active |
| Canchola Team Construction Inc | B + D12 | 2019 | Active |
| Caplinger Construction Inc | A + C12, C21 | 1995 | Active |
| Casavi | B | 2021 | Active |
| Caston Inc | B + C2, C9, C35 +1 | 1986 | Active |
| CCS California Contracting Services LLC | B | 2001 | Active |
| Cerritos Construction & Design | B | 2026 | Active |
| Chavarin Engineering Inc | A | 2018 | Active |
| Coast To Coast Custom Designs Inc | B | 2017 | Active |
| Community Action Partnership Of San Bernardino County | B + C20, C36 | 2004 | Active |
| Cook Custom Construction Inc | B | 2025 | Active |
| Covarrubias Corp | B | 2025 | Active |
| Cross Price Electric Inc | A + C10 | 2019 | Active |
| Cruz Construction Company | A, B | 1999 | Active |
| Davidson's Air Conditioning & Heating Inc | B + C20, C36, C38 | 1982 | Active |
| DGD Remodling | B2 | 2024 | Active |
| Dle Construction | B + C10 | 2018 | Renew by Dec 31, 2026 |
| Do It All Home Improvements | B | 2011 | Active |
| Doza Build Inc | B | 2020 | Active |
| DSQ General Construction | B | 2026 | Active |
| Dunamis Builders & Restorations Inc | B | 2024 | Active |
| Earthquake Bracing Incorporated | B | 2017 | Active |
| Eastland Construction Inc | A | 1991 | Active |
| El-Co Contractors Inc | A + C12, C34, C42 +1 | 1976 | Active |
| Environmental Contractors Transportation Inc | A + HAZ | 2017 | Active |
| Environmental Management Technologies Inc | A + HAZ | 2009 | Active |
| F D C & Associates Corporation | B | 2008 | Active |
| FBC Construction Inc | B + C33 | 2024 | Active |
| Felix Woodworking Inc | B + C6 | 2007 | Active |
| Ferrel's Remodeling Inc | B2 | 2025 | Active |
| FGC Construction Inc | A, B | 2008 | Active |
| Fire Chief Fire Protection Enterprise Inc | B + C16 | 2005 | Active |
| First Call Plumbing And Restoration Of The Inland Empire | B + C36 | 2001 | Active |
| Fischer Inc | A, B + C16, C36 | 2005 | Active |
| FJ Construction SVCS | B | 2016 | Renew by Dec 31, 2026 |
| Fma General Construction | B | 2022 | Active |
| Fonseca Construction Inc | B + C8 | 2003 | Active |
| G Communications Inc | A | 2025 | Active |
| Gafe General Construction Inc | B | 2024 | Active |
| Gco General Contractors | B | 2025 | Active |
| Geo - Cal Inc | A + C57, HAZ | 1997 | Active |
| Germock Construction Inc | B | 2021 | Active |
| GMC General Builders Inc | B | 2025 | Active |
| Golden State Home Remodeling Inc | B | 2026 | Active |
| Great Image Construction Inc | B | 2010 | Active |
| Gutierrez Construction | B | 2025 | Active |
| Gutz Family Corp The | B | 2008 | Active |
| H5 Construction Inc | B + C36 | 2018 | Active |
| Harber Companies Inc | A, B + D06 | 1992 | Active |
| High Grounds General Contractor | B | 2025 | Active |
| House To Home Remodeling Inc | B | 2024 | Renew by Dec 31, 2026 |
| Houston & Harris P C S Inc | A + D38, HAZ | 2006 | Active |
| Howard & Sons Inc | B + C33, C39 | 2016 | Active |
| I A M Restoration Inc | B + C8, C33, C36 | 1999 | Active |
| Indian Construction Inc | A + C12, C21 | 2004 | Renew by Nov 30, 2026 |
| Inland Building Construction Companies Inc | B + C2, C8, D16 +5 | 1981 | Active |
| Inland City Home Remodeling | B2 | 2025 | Active |
| Inland Empire Concrete Pumping | B + D06 | 2018 | Active |
| Innovative Metal Industries Inc | B | 2021 | Active |
| International Paving Services LLC | A, B + C8, C12 | 1999 | Active |
| J & M Contractors Corp | B | 2025 | Active |
| J G & Sons Construction | B | 2020 | Active |
| Jaymo Inc | B | 2023 | Active |