| New Century Construction & Restoration Inc | B | 2023 | Active |
| New Evolution Construction Inc | B + C5 | 2011 | Active |
| New Evolution Framing Inc | B + C5 | 2021 | Active |
| New Generation Construction | B | 2008 | Active |
| Nexgen Property Restoration | B | 2006 | Active |
| Next Gen Brothers Construction | B | 2024 | Active |
| Nick's Electrical Contractors Inc | B + C10 | 2023 | Active |
| Nicolaisen & Sons Construction Inc | B | 1997 | Active |
| Nielsen Doug Construction Inc | B | 2003 | Active |
| Nol Construction | B | 2025 | Active |
| Notable Construction | B + C53 | 2018 | Active |
| O C S Construction Services Inc | B | 2015 | Active |
| Oc Engineering And Construction Inc | A, B | 2026 | Active |
| Odeh Construction Group Inc | B | 2026 | Active |
| Og Construction | B + D12 | 2023 | Active |
| Ondatje Contracting Inc | B + C2, C9, C33 +1 | 2017 | Active |
| Optimal Construction Corp | B | 2014 | Active |
| Optimum Construction LLC | B | 2020 | Active |
| Optimum Solar Power Inc | A + C10, C46 | 2017 | Active |
| P L A Construction Inc | B | 2015 | Active |
| P L Q Environmental & Construction Inc | B | 2016 | Active |
| P T M General Engineering Services Inc | A, B + C7, C8, C10 +8 | 2007 | Active |
| Pacific Contracting & Development Inc | B | 2015 | Active |
| Pacific Pools & Patios | B + C8, C53 | 1992 | Active |
| Pacific Pro Framing Inc | B | 2025 | Active |
| Pacific Shores Company Inc | B | 2000 | Active |
| Padilla's Welding & Construction Inc | A + C60 | 1986 | Renew by Nov 30, 2026 |
| Palcrete Inc | A, B + C8 | 2018 | Active |
| Park Construction Solutions | B | 2011 | Active |
| Pas Property Management Inc | B | 2015 | Active |
| Paul Davis Restoration Of The Inland Empire | B + C22, C36, C39 | 2008 | Renew by Nov 30, 2026 |
| Pebco General Engineering & Building Contractors Inc | A, B | 2010 | Active |
| PJS Excavation Inc | A | 1996 | Active |
| Plancarte JPC Construction Corp | B | 2025 | Active |
| Power Construction | B | 2023 | Active |
| Preferred Re Construction Inc | B | 2016 | Active |
| Premier Builders Group | B | 2026 | Active |
| Premier Property Maintenance Incorporated | B + C27 | 2026 | Active |
| Presidential Construction Service Inc | B | 2014 | Active |
| Prestige Construction And Renovation Services Inc | B | 2013 | Active |
| Prime Construction Inc | B | 2006 | Active |
| Primeline Infrastructure Services | A | 2026 | Active |
| Profectus Construction Group Inc | B | 2022 | Active |
| QS Construction Inc | B + C27, C53 | 2016 | Renew by Nov 30, 2026 |
| Quality Contractors | B | 2012 | Active |
| Quality Timber Construction Inc | B | 2024 | Active |
| Quiel School Signs | B + C45 | 2021 | Active |
| R & S Madrigal Construction & Supply Inc | B | 1991 | Active |
| R 818 Renovations LLC | B | 2025 | Active |
| R A W Services Inc | B + C20, C36 | 2011 | Active |
| R And W Construction Inc | B | 2024 | Active |
| R B Construction | B | 2012 | Active |
| R H Custom Builders Inc | B | 2002 | Active |
| R I S Electrical Contractors Inc | B + C10, C31 | 1995 | Active |
| R J Constructors Inc | A, B + HAZ | 2012 | Active |
| R J H Construction | B | 2002 | Active |
| R M G Building Inc | B | 1982 | Active |
| R-Golden Contractors Inc | A, B | 2021 | Active |
| Ramcam Corporation | A, B + ASB, C21 | 2000 | Active |
| Rangel Home Improvement Inc | B | 2025 | Active |
| Rci Concrete | B + C8 | 2006 | Active |
| RCR General Construction Inc | B | 2025 | Active |
| Rdo Water LLC | A | 2015 | Active |
| Regional Connector Constructors | A, B | 2014 | Active |
| Rehab Building Co Inc | B + C10 | 2014 | Active |
| Reidhead Development Inc | B | 2014 | Active |
| Reliance Renovations Inc | B2 | 2025 | Active |
| Reliant Tradeworks Contracting Inc | B + C20 | 2022 | Active |
| Remmi Construction Inc | B | 2018 | Active |
| Residential Remodeling & Refinishing | B2 + D12 | 2016 | Active |
| Resqpros Inc | B | 2024 | Active |
| Restore All Enviro LLC | B | 2022 | Active |
| Revamped Hardscapes Inc | B | 2026 | Active |
| Revival Home Improvement Inc | B | 2019 | Active |
| Reyway Construction & Designs | B | 2026 | Active |
| Rite A Way Restoration Incorporated | B | 2024 | Active |
| Riverside Cabinets Inc | B | 2006 | Active |
| Riverside Construction Company Inc | A | 1970 | Active |
| Riverside Directional Drilling | A + C12 | 2004 | Active |
| Riverside Kitchen And Bath | B | 2014 | Active |
| Rmo Pro Construction | B | 2026 | Active |
| Rock Jacob Inc | B + C36 | 2017 | Active |
| Rocket Enterprises | B + C10 | 2014 | Active |
| Romero + Obeji Inc | B | 2018 | Active |
| Romo's Builders Inc | B | 2022 | Active |
| Royal Group Construction | B + C33 | 2011 | Active |
| Rso Construction | B | 2001 | Active |
| Ryan Contractors Inc | B | 2012 | Active |
| Rytech Restoration Of Ontario | B | 2025 | Active |
| S & S Pro Service General Contractor Inc | B | 2000 | Active |
| S A F A Services Inc | B | 2005 | Active |
| S S A Construction Inc | B | 2020 | Active |
| S-Line Contractors | B + C8, C10, C34 | 2019 | Active |
| S3 Contractors | B | 2025 | Active |
| Safe - Ex Inc | A | 2023 | Active |
| Safe Builders Inc | B | 2025 | Active |
| Safe Restoration | B2 | 2025 | Active |
| Safeway Electric | B + C7, C10, C46 | 1980 | Active |
| Sage & Stone Development LLC | B | 2026 | Active |
| Saltaire Construction | B | 2017 | Active |