| Preferred Remodelers | B | 1986 | Active |
| Premier Mechanical Group Inc | A, B | 2014 | Renew by Nov 30, 2026 |
| Priceless Services Incorporated | B + C27 | 1979 | Active |
| Prime General Construction Inc | B | 2022 | Active |
| Prime Pavers Landscape | B + C27 | 2025 | Active |
| Primebuilding Solution Inc | B | 2011 | Active |
| Pro Select Construction | B + C27 | 2014 | Active |
| Production Interiors LLC | B + C8 | 2022 | Active |
| Promisebuilt Kitchen & Bath | B | 2020 | Active |
| Prophase Electric | B + C10 | 2022 | Active |
| Proquality Contracting Inc | B | 2014 | Active |
| Q S B Construction | B + C8 | 2010 | Renew by Dec 31, 2026 |
| Quick-Dry Flood Services | B | 2022 | Active |
| R & R Custom Builders Inc | B | 2010 | Active |
| Rainbow Restoration Of San Diego County | B | 2009 | Active |
| Rancheros Remodeling Inc | B2 | 2026 | Active |
| Rancho Santa Fe Craftsman Inc | B | 1993 | Active |
| Rayco Exteriors | A, B + C33 | 2016 | Active |
| RB General Contractor | B | 2024 | Active |
| RC Remodeling & Construction Inc | B | 2024 | Renew by Nov 30, 2026 |
| Regenera Inc | B2 | 2026 | Active |
| Reico Construction Inc | B | 2003 | Active |
| Rendon Renovation Group | B | 2026 | Active |
| Renewable Construction Services Inc | B + C10 | 2019 | Active |
| Renewabuilt Inc | B | 2024 | Active |
| Restoration Brothers Llc-San Diego | B | 2024 | Active |
| Riley Construction Inc | B + C6 | 1992 | Active |
| Rivers Landscape Construction Inc | B + C27 | 2009 | Active |
| Roberts General Engineering | A | 2002 | Active |
| Rocky Coast Builders Inc | A, B + C5, C8 | 1998 | Active |
| Roden Properties Inc | B | 2002 | Active |
| Roman Built Development | B | 2024 | Renew by Dec 31, 2026 |
| Romero General Construction Corp | A | 1992 | Active |
| Roof Construction | B + C39 | 1992 | Active |
| Roval Group | A, B | 2013 | Active |
| Rp&L Construction Group Inc | B | 2018 | Active |
| Rucker Design & Remodeling | B | 2002 | Active |
| Ryan General Contractors Inc | B | 2019 | Renew by Dec 31, 2026 |
| S R M Contracting & Paving | A | 1991 | Active |
| Sage Roots Consulting LLC | B | 2023 | Active |
| San Diego Grading | B + C12 | 1999 | Active |
| San Diego Tech Building Solutions Inc | B + D64 | 2016 | Active |
| Sealco Inc | A | 2025 | Active |
| Seisun Inc | A + C10 | 2006 | Active |
| Selah Construction And Landscape | B + C27 | 2012 | Renew by Dec 31, 2026 |
| Select Door And Window Inc | B | 2009 | Active |
| Sepcon Corporation | B | 2012 | Active |
| Sergio's Construction Inc | B + C8, C9 | 2016 | Active |
| SGM Construction | B | 2023 | Active |
| Sierra Contracting | B | 1994 | Active |
| Sillars G B Corporation | B | 2017 | Active |
| Site Logistics Inc | A | 1989 | Active |
| Smith Zack Plumbing & Contracting Inc | B + C36 | 2005 | Active |
| Socal Bath & Shower LLC | B | 2022 | Active |
| Soil Designs Inc | A | 1996 | Active |
| Soils Xcavation Inc | A + HAZ | 2015 | Active |
| Solar Roofing And Energy Storage Inc | B + C39, C46 | 2023 | Active |
| Solar Symphony Construction Inc | B + C46 | 2013 | Active |
| Solhome | B + C10, C20 | 2009 | Active |
| Southland Paving Inc | A + C12, C31 | 1984 | Active |
| Southwest General Construction Corporation | B | 2021 | Active |
| Southwest Line Builders Inc | A + C10 | 2013 | Active |
| Spartan Home & Business Solutions | B | 2020 | Active |
| Specialty Design Build | B + C33, C54 | 2001 | Active |
| Sphere Mechanical Corporation | B + C20 | 2018 | Renew by Dec 31, 2026 |
| Sr Contractor Building & Renovation | B | 2025 | Active |
| SRK Engineering Inc | A | 2016 | Active |
| Steelcore Electric Inc | A, B + C10 | 2016 | Active |
| Stephens K F Inc | B | 1991 | Active |
| Strata Homes Inc | B | 2017 | Active |
| Straub Construction Inc | A, B | 1987 | Active |
| Stressless Remodels | B + C54 | 2025 | Active |
| Stride Right Construction Corp | B | 2014 | Renew by Nov 30, 2026 |
| Sumeg International Inc | B | 1997 | Active |
| Surpass Construction Inc | B | 2026 | Active |
| Synergistic Energy Services Inc | B + C10, C46 | 2014 | Active |
| T K Builders Inc | B | 2009 | Active |
| Templeton Engineering Inc | A, B | 1995 | Active |
| Tetrad Contracting Group Inc | A, B + C10 | 2016 | Active |
| The Trust Builders Incorporated | B | 2025 | Active |
| Thoryk Construction Inc | B | 2020 | Active |
| Titan Construction & Remodeling Inc | B | 2025 | Active |
| Torres Enterprises | A + C27 | 2024 | Active |
| Tri-State General Contractors Inc | B | 2008 | Active |
| Trivista Inc | B + C9, C17, C20 +3 | 1993 | Active |
| Trudry Restoration | B | 2022 | Active |
| Tryska Construction Inc | B | 2019 | Active |
| TWG Construction Services Inc | B | 1984 | Active |
| Ucon Contemporary Interiors | B + C6, C35 | 2019 | Active |
| Underground Solutions Inc | A | 2003 | Active |
| Unique Living Solutions LLC | B + D06, D12 | 2019 | Active |
| United Specialty Engineering | A | 2016 | Active |
| Universal Builders Inc | B | 2022 | Active |
| Universal Construction | B | 2004 | Active |
| Upton Michael Construction Inc | B | 1990 | Renew by Nov 7, 2026 |
| Van's Custom Woodwork & Interiors Inc | B + C6 | 2013 | Active |
| Vanguard Renovations LP | B | 2021 | Active |
| Vedda Construction Inc | B | 2022 | Active |
| Venust Building & Development Inc | B | 2026 | Active |
| Vetfixx Home Repair Services | B | 2018 | Active |