| Postal Systems | B + D24, D42 | 2007 | Active |
| Poulson Construction Inc | B | 2016 | Active |
| Poweron Construction | B + C10 | 2023 | Active |
| Powers Plumbing | A, B + C10, C20, C36 | 2006 | Active |
| Prada General Construction Inc | B | 2025 | Active |
| Precision Construction Inc | B | 2022 | Active |
| Precision Floor & Decor Inc | B + C15 | 2013 | Active |
| Precision General Contracting | B | 2013 | Active |
| Precision Landscape Maintenance Inc | B + C27, D49 | 2001 | Active |
| Precision Projects Construction Corp | B | 2026 | Active |
| Prefab Granite Depot | B + C54 | 2006 | Active |
| Preman A Roofing Inc | B + ASB, C10, C39 +2 | 1999 | Active |
| Premier Custom Builders Inc | B | 2006 | Active |
| Premier Home Remodeling And Design LLC | B | 2023 | Active |
| Premier Homes Remodeling And Design | B | 2023 | Active |
| Premium West Inc | B + C8, C10 | 2018 | Active |
| Presidio Construction | B | 2025 | Active |
| Prestige Hardscapes Inc | B + C27 | 2018 | Active |
| Price Builders Inc | B | 1993 | Active |
| Pride Construction Of San Diego | B | 1999 | Active |
| Prime 1 Remodel Inc | B2 | 2026 | Active |
| Prime Building Construction | B | 2023 | Active |
| Prime Coastal Builders Inc | B | 2026 | Active |
| Prime Time Concrete Cutting | B + D06 | 2019 | Active |
| Primebuild Group | B | 2024 | Active |
| Primecore Construction Services | B | 2025 | Active |
| Principato Kitchen & Bath | B | 1994 | Active |
| Priority Construction Inc | B | 1998 | Active |
| Priority One Real Estate Consultants | B | 2025 | Active |
| Prismatica Inc | B | 2021 | Active |
| Pristine Design & Build | B | 2026 | Active |
| Pro - Tech Painting Co | B + C33 | 1991 | Active |
| Pro 24 Design-Build | B | 2026 | Active |
| Pro Builders And Design Inc | B | 2020 | Active |
| Pro Builders San Diego Corp | B | 2026 | Active |
| Pro Depot Remodeling & Construction Inc | B | 2024 | Active |
| Pro Flooring Center | B + C15 | 2016 | Active |
| Pro Mitigation And Construction Service | B | 2024 | Active |
| Pro Services General Contractors | B + D12, D34 | 2021 | Active |
| Pro Solutions Construction Inc | B | 2024 | Active |
| Pro Value Contracting | B | 2003 | Active |
| Pro-Tech Design And Build Inc | A, B | 2020 | Active |
| Proactive Construction Solutions Inc | B | 2025 | Active |
| Proactive Edge Developments | B | 1999 | Active |
| Progressive Restoration | B | 2026 | Active |
| Prolific Builders And Design | B | 2021 | Active |
| Prolific Builds Inc | A, B | 2021 | Active |
| Prominent Builders Inc | B | 2025 | Active |
| Pronto Flood Service Inc | B | 2007 | Active |
| Property Solutions By Design | B2 | 2024 | Active |
| Prosiren Inc | B | 2025 | Active |
| Protec Building Services | B + ASB, C33, C36 | 2002 | Active |
| Psi Construction & Engineering Inc | A | 2023 | Active |
| Pula Construction Group | B + C33 | 2019 | Active |
| Pure Pro Plumbing | B + C36 | 2025 | Active |
| Puroclean Of Clairemont | B | 2021 | Active |
| Purple Mountain Builders Inc | B | 2019 | Active |
| Q E A Home Remodeling Group Inc | B | 2015 | Active |
| Q E Construction Inc | B + C10, C20 | 2002 | Active |
| Quality Building & Solutions Inc | B | 2024 | Renew by Nov 30, 2026 |
| Quality Construction & Engineering Inc | A, B | 2015 | Active |
| Quality Renovation Solutions | B | 2019 | Active |
| Quick & Clean Restoration Inc | B | 2025 | Active |
| Quick Serve Carpet Care And Restoration Inc | B + C15 | 2000 | Active |
| Quick Water Heater Company | B + C36 | 2011 | Active |
| R & M Construction Inc | B + C15 | 2004 | Active |
| R E Staite Engineering Inc | A | 1992 | Active |
| R G B Group Inc | B | 2000 | Active |
| R G C Corporation | B | 1992 | Active |
| R G Construction | B | 2022 | Active |
| R H Solutions Inc | B + C15 | 2013 | Active |
| R J R Builders Inc | B | 1981 | Active |
| R&C Building Solutions Inc | B | 2024 | Active |
| Rac Construction & Engineering Inc | A, B | 2021 | Active |
| Rainbow Stone Construction Inc | B | 2010 | Active |
| Ramajid Construction Corp | B | 2023 | Active |
| Ramirez General Construction Inc | B | 2025 | Active |
| Ramz Construction Services Inc | B | 2020 | Active |
| Ranbar Plumbing Contractors Inc | A + C36 | 2004 | Active |
| Rancho Farm Construction Corporation | B | 1991 | Active |
| Rancho Kitchen & Baths Inc | B | 2004 | Active |
| Raoz General Engineering Inc | A | 1977 | Active |
| Rapid Restorations Inc | B + C36 | 2009 | Active |
| Ray 8 Engineering | A + C7 | 2018 | Active |
| Rayala Construction Inc | B | 2018 | Active |
| RC Premier Builders Corp | B | 2026 | Active |
| Rc&M Contractor Inc | B | 2025 | Active |
| Rc2build Inc | A, B | 2023 | Active |
| RCS Pro Build | B | 2018 | Renew by Nov 30, 2026 |
| Re-Store Services | B + C36 | 2023 | Active |
| Ready Construction LLC | B | 2025 | Active |
| Real Saet Construction LLC | B | 2024 | Renew by Dec 31, 2026 |
| Reborn Design And Remodel | B, B2 | 2019 | Active |
| Reconstruction Rescue | B2 | 2025 | Active |
| Red Hawk Builders | B | 2021 | Active |
| Redding J Custom Homes Inc | B | 2015 | Active |
| Redline Custom Contracting Inc | B | 2001 | Active |
| Redpoint Builders Inc | B | 2007 | Active |
| Reef Contractors Inc | B | 2014 | Active |
| Reflect Design + Build Inc | B | 2021 | Active |