| Ocean View Doors & Windows Inc | B | 2025 | Active |
| Oh Painting Inc | B + C33 | 2004 | Active |
| Oj Construction & Consultant Inc. | B | 2021 | Active |
| Olivari Construction Inc | B + C33 | 2018 | Active |
| Olson Construction Company | A, B | 2009 | Active |
| Olson Jim Construction Inc | B + C17 | 1999 | Active |
| Olympian Renovations Inc | B2 | 2025 | Active |
| Olympus Builders Inc | B | 2024 | Active |
| On The Level Renovations Inc | B | 2023 | Active |
| On The Road Construction 11 Inc | B | 2026 | Active |
| One Hat Construction Inc | A, B + C8, C36 | 2019 | Active |
| One Stop Builders Inc | B | 2023 | Active |
| One Stop Comfort Center Inc | B + C10, C20, C36 | 2022 | Active |
| Onestop Adu | B | 2022 | Active |
| Onpoint Construction Company | B | 2020 | Active |
| Onyx Property Management | B | 2013 | Active |
| Open Line Construction | B | 2025 | Active |
| Optimal Remodeling And Design | B | 2022 | Active |
| Original JB Windows & Doors Construction & Remodeling The | B | 2023 | Active |
| Orion Builders Of California Inc | B | 2020 | Active |
| Osborn Builders | B | 2023 | Active |
| Osito Construction Company Inc | A, B + ASB, HAZ | 2023 | Active |
| Osprey Construction Inc | B + C10 | 2008 | Renew by Nov 7, 2026 |
| Osprey Remodel Inc | B | 2013 | Active |
| Ossc Inc | B | 2020 | Active |
| Ostrowski Painting Inc | B + C33 | 2004 | Active |
| P & V Construction | B + C36 | 2006 | Active |
| P C I General Construction | B + C20, C36 | 2007 | Active |
| P G Construction & Remodleing Inc | B | 2021 | Active |
| P Remodeling Construction Inc | B | 2024 | Active |
| Pac Coast Construction Inc | B | 2008 | Active |
| Pacheco's Construction Inc | B | 2018 | Active |
| Pacific Benchmark Inc | B | 2006 | Active |
| Pacific Blu Construction Inc | B | 2000 | Active |
| Pacific Building And Development Inc | B | 2015 | Active |
| Pacific Building Group | B + C2, C9 | 1986 | Renew by Dec 31, 2026 |
| Pacific Coast Communities Inc | B | 1997 | Active |
| Pacific Coast Home Improvement & Construction Inc | B | 2013 | Active |
| Pacific Coastal Development Inc | B | 2015 | Active |
| Pacific Construction | B | 2018 | Active |
| Pacific Cove Construction & Plumbing | B + C27, C29, C36 | 1985 | Active |
| Pacific Dredge And Construction LLC | A | 2018 | Active |
| Pacific Drilling Co | B + C57 | 1993 | Active |
| Pacific Edge Renovation Inc | B2 | 2024 | Active |
| Pacific Plumbing Service Inc | A, B + C36 | 2004 | Active |
| Pacific Rim Mechanical Contractors Inc | B + C2, C4, C20 +1 | 2002 | Active |
| Pacific Tankless Inc | B + C36 | 2019 | Active |
| Pacific Tugboat Service | A | 2004 | Active |
| Pacific's Finest Drywall | B + C9 | 2024 | Active |
| Padilla Home Remodeling Inc | B2 | 2026 | Active |
| Pal General Engineering Inc | A | 2008 | Active |
| Palatine Building | B | 1994 | Active |
| Palm Engineering | A, B + C10, C27 | 2005 | Active |
| Palm Ridge Construction Inc | B | 2022 | Active |
| Palmer Brothers Construction Company | B | 1993 | Active |
| Paradise Home Remodeling And Repair Inc | B | 2023 | Active |
| Paradise Landscaping & Construction LLC | B + C8, C27, D06 +1 | 2024 | Active |
| Parker General Contractors Inc | B + C8 | 2001 | Active |
| Parkhaven Building And Management Corporation | B | 2001 | Active |
| Passion First Construction LLC | B | 2025 | Active |
| Pat's Plumbing & Drains | B + C36 | 2013 | Active |
| Patron Ventures Group | B | 2026 | Active |
| Paul Davis Restoration Of South San Diego County | B | 2007 | Active |
| Paul Staughton Inc | B | 2025 | Active |
| Payan Remodeling Inc | B, B2 + D12 | 2023 | Active |
| PB Deason Enterprises Incorporated | B | 2026 | Active |
| PBH Builders Inc | B | 2023 | Active |
| Peacock Engineering Inc | A + C12 | 1988 | Active |
| Peahi Builders Inc | B | 2025 | Active |
| Peak Builders & Roofers Of San Diego | B + C27, C39, C54 | 2015 | Active |
| Pearl Construction LLC | B | 2026 | Active |
| Pebble Creek Companies | A, B | 2009 | Active |
| Peerless Builders Corp | B | 2025 | Active |
| Peg Enterprise Inc | B + C10, C36 | 2015 | Active |
| Peikert Shaw Construction Corp | B | 2012 | Active |
| Performance Automation Solutions Inc | B + C7, C10, C16 +2 | 2010 | Active |
| Performance Strata Services LLC | B | 2026 | Active |
| Permon Contractors Inc | B + C20 | 2006 | Active |
| Perretta Construction Inc | B | 1988 | Active |
| Peterson Construction Inc | B | 2021 | Active |
| Peterson D L Construction Inc | B | 1983 | Active |
| Pf168 Construction Inc | B | 2021 | Active |
| Phenaz Construction Corp | A | 2021 | Active |
| Phillips Contruction | B | 1995 | Active |
| PHNX Development | B | 2022 | Active |
| Picasso Development Inc | B | 2012 | Renew by Dec 31, 2026 |
| Picket Fences Home Construction | B | 2000 | Active |
| Pinnacle International Development Inc | B | 2003 | Active |
| Pipe Jacking Trenchless Inc | A, B + C10 | 2016 | Active |
| Platinum Housecraft | B | 2016 | Active |
| Platinum Mortgage Group | B | 2013 | Active |
| Pleasecomefixit.Com Repairs & Restoration | B | 2017 | Active |
| PLR Construction Inc | A, B | 1988 | Active |
| Plumb Building & Remodeling Inc | B | 2011 | Renew by Dec 31, 2026 |
| Plumbing & Air Star Heating | A, B + C20, C36 | 2019 | Active |
| PMC Construction Partners Inc | B + C21, C36, C53 | 2026 | Active |
| Pogo Dog LLC | A, B | 2019 | Active |
| Point Loma Electric, Plumbing, Heating & Air | B + C10, C20, C36 | 2009 | Active |
| Point Loma Home Repair & Remodeling Inc | B2 | 2025 | Active |
| Pointer Pacific | B | 2023 | Active |