| Reed R W Company Inc | B | 1979 | Active |
| Residential Experts LLC | B | 2024 | Active |
| Resolved Home Services Inc | B + C36 | 2017 | Active |
| Restoration 1 Of Huntington Beach | B | 2025 | Renew by Dec 22, 2026 |
| Restoration Pros LLC | B | 2017 | Active |
| Retouch Construction Inc | B | 2022 | Active |
| Right Guy Construction Inc | B | 2026 | Active |
| RN General Contractors | B | 2024 | Active |
| Rocal Electric Group | B + C10 | 2017 | Active |
| Roeland B Construction Inc | B | 1987 | Active |
| Romans Builders Inc | B | 2026 | Active |
| Rovics Construction Inc | B | 2001 | Active |
| Rowland Development Company Inc | B | 2025 | Active |
| RSB Development Inc | B | 2021 | Active |
| RSM Plumbing Heating & Air Conditioning | B + C20, C36 | 2014 | Active |
| Rupert Construction Services Inc | B + C50 | 2019 | Active |
| S & P Concrete Construction LLC | B + C8 | 2024 | Active |
| S C C Homes Inc | B | 2005 | Active |
| S L Construction | B | 1999 | Active |
| S S B V Construction And Development Inc | B + C10 | 2021 | Active |
| Sandcon Inc | B | 2021 | Active |
| Shape Remodeling And Design | B | 2024 | Active |
| Shewbridge Michael Architect Inc | B | 2012 | Active |
| Shore-Tech Builders LLC | B + C8 | 2005 | Active |
| Shorebreak Construction Inc | B + C10 | 2011 | Active |
| Shoreline Development Inc | B | 2013 | Active |
| Smoothstone Construction & Consulting Inc | B | 2009 | Active |
| South Coast Paving Inc | A + C12 | 2012 | Active |
| South Shore Marine Construction Inc | A | 2021 | Active |
| Southern California Energy Services Inc | B + C10, C20 | 1991 | Active |
| Specialized Surfaces | B + C15, C54 | 2008 | Active |
| Specon Corporation | B | 2009 | Active |
| Spectrum Builders Construction Inc | B | 2001 | Active |
| Spellman J Construction Inc | A, B | 1988 | Active |
| Starpoint Development & Construction LLC | B | 2026 | Active |
| Stellrecht Builders Inc | B | 2023 | Active |
| Stellrecht Building Group | B | 1986 | Active |
| Stratum Development Inc | A, B | 2001 | Active |
| Sunburst Construction & Design Inc | B + C8 | 2025 | Active |
| Superior Construction Contractors Inc | B | 2017 | Active |
| Superior Contractor Corp | B | 2024 | Active |
| Sure Forming Systems Inc | B | 1978 | Active |
| Surf City Renovations Inc | B | 2015 | Active |
| Surf City Tile Inc | B + C54 | 2019 | Active |
| Surfline Builders Inc | B | 2017 | Active |
| Surfside Restoration & Waterproofing Inc | A, B + D06, D38 | 1995 | Active |
| Synovate Technologies Inc | B + C7, C10 | 2010 | Active |
| T C Management Inc | B | 1997 | Active |
| Team Design And Construction Inc | B | 1986 | Active |
| Terrax Environmental Inc | A + HAZ | 2012 | Active |
| The Construction Pros Corp | B + C36 | 2022 | Renew by Dec 31, 2026 |
| The Store Care Specialists Inc | B | 2007 | Active |
| Tinley Construction Inc | B | 1999 | Active |
| TKV Builders | B | 2022 | Active |
| Top Notch Roof Co Inc | B + C39 | 1994 | Active |
| Top Shelf Restoration | B | 2025 | Active |
| Total Petroleum Services Inc | A + D40 | 2008 | Active |
| Trifecta Heating & Air Conditioning Inc | B + C20 | 2009 | Active |
| Triton Pacific Construction Group | B | 2000 | Active |
| Trucor Construction Inc | B | 2020 | Active |
| True General Contracting LLC | B | 2026 | Active |
| True Wall Systems Inc | B + C9 | 2013 | Active |
| Turner Hill Building Inc | B | 2012 | Active |
| Twin Construction Company Inc | B + D51 | 1995 | Active |
| Ukowa Construction | B | 2023 | Active |
| Ultimate Installz Inc | B | 2007 | Active |
| Under Cover Home Improvements Inc | B + C39 | 1994 | Active |
| V P Build | B | 2015 | Active |
| Valve King Inc | A | 2025 | Active |
| Van Herk Robert Construction Inc | B | 1998 | Active |
| Vellco Inc | B + C10 | 2024 | Active |
| Vista Builders Inc | A, B | 1990 | Active |
| Weber Lee Construction Inc | B | 2020 | Active |
| Wells J D Construction Inc | B | 1985 | Active |
| West Coast Property Maintenance Inc | B | 2020 | Active |
| West Coast Services | B + C20, C47 | 2005 | Active |
| Westrup Woodworks Inc | B | 1992 | Active |
| Whittier Wood Products | B | 1974 | Active |
| Window Crafters Inc | B + C17, D28 | 2017 | Active |
| WJR Precision Construction Inc | B | 2025 | Active |
| Woolsey Construction Inc | B | 2018 | Renew by Dec 31, 2026 |
| World Commodities Incorporated | A, B + C21, HAZ | 2020 | Active |
| Ymg Construction LLC | B | 2026 | Active |
| Youssef Construction Inc | A, B + C6, C7, C10 | 2009 | Active |
| Zangger Construction Inc | B + D28 | 1999 | Renew by Dec 31, 2026 |