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| Santiago's Lawn Care/Const LLC | CC-01 | 2024 | Active |
| Santos & Son Co LLC | CC-01 | 2025 | Active |
| SD Painting & Home Imprvts LLC | CC-01 | 2023 | Active |
| Sealed Siding LLC | CC-01 | 2026 | Active |
| Seattle Build Pro LLC | CC-01 | 2023 | Active |
| Seattle Building & MGMT LLC | CC-01 | 2018 | Active |
| Seattle Premium Bath | CC-01 | 2023 | Active |
| Serena Construction Co LLC | CC-01 | 2026 | Active |
| Sergey's Deluxe Carpet Inc | CC-01 | 2011 | Active |
| Sia Builds LLC | CC-01 | 2025 | Active |
| Sia Construction LLC | CC-01 | 2025 | Active |
| Sinclair Construction | CC-01 | 2024 | Active |
| Sky Shield Roofing LLC | CC-01 | 2026 | Active |
| Skyline Builders Wa Inc | CC-01 | 2024 | Active |
| Smart Future LLC | CC-01 | 2024 | Active |
| Smell The CLRS Lnds/Maint LLC | CC-01 | 2023 | Active |
| Solution Drytex LLC | CC-01 | 2025 | Active |
| Spartan Homes LLC | CC-01 | 2024 | Active |
| Specialty Insulation NW LLC | CC-01 | 2012 | Active |
| Spectrum Real Estate/Dsgn LLC | CC-01 | 2016 | Active |
| Speedpro Seattle Eastside | CC-01 | 2025 | Active |
| Spline | CC-01 | 2025 | Active |
| Spring Greenworks LLC | CC-01 | 2026 | Active |
| Spyder Roofing LLC | CC-01 | 2026 | Active |
| Stark Construction Inc | CC-01 | 1982 | Active |
| Stately Construction LLC | CC-01 | 2017 | Active |
| Stensrud Const Services LLC | CC-01 | 2000 | Active |
| Stillwater Marine Inc | CC-01 | 2006 | Active |
| Stonewood Design Inc | CC-01 | 2002 | Active |
| Storms Fabrication | CC-01 | 2025 | Active |
| Studio Panko LLC | CC-01 | 2026 | Active |
| Super Attic Solutions Inc | CC-01 | 2021 | Active |
| System Technologies Inc | CC-01 | 2011 | Active |
| T2 Home Services LLC | CC-01 | 2026 | Active |
| Tako Garage Door Inc | CC-01 | 2022 | Active |
| Taylor Building & Design LLC | CC-01 | 2015 | Active |
| TCG Construction LLC | CC-01 | 2020 | Active |
| Temporary Wall Systems PGT SND | CC-01 | 2024 | Active |
| Tend Home Services | CC-01 | 2011 | Active |
| Tennyson Const Servs LLC | CC-01 | 2024 | Active |
| Tennyson Homes Constrctn Inc | CC-01 | 2015 | Active |
| Terra Forma Inc | CC-01 | 1994 | Active |
| TF Pro Build LLC | CC-01 | 2025 | Active |
| The Facilitators Inc | CC-01 | 2008 | Active |
| Timberline Civil Contrctrs LLC | CC-01 | 2026 | Active |
| Titus Construction | CC-01 | 2019 | Active |
| TJ Services LLC | CC-01 | 2026 | Active |
| TK Elevator Corporation | CC-01 | 2021 | Active |
| TM Construction | CC-01 | 2011 | Active |
| Top Line Roof & Constr LLC | CC-01 | 2018 | Active |
| Topaz Remodeling Inc | CC-01 | 2023 | Active |
| TR'S Construction Inc | CC-01 | 2001 | Active |
| Troon Construction Co LLC | CC-01 | 2002 | Active |
| Truecraft Countertops LLC | CC-01 | 2026 | Active |
| TZN Construction LLC | CC-01 | 2026 | Active |
| Ultra Coat Roofing LLC | CC-01 | 2026 | Active |
| Ultra Core Construction | CC-01 | 2026 | Active |
| Underwood Fine Construction | CC-01 | 2017 | Active |
| Unique Design & Const LLC | CC-01 | 2025 | Active |
| Unique Home Construction LLC | CC-01 | 2019 | Active |
| United Dream Builders LLC | CC-01 | 2024 | Active |
| Upper Builders LLC | CC-01 | 2023 | Active |
| Upscalent LLC | CC-01 | 2022 | Active |
| US Builders Team LLC | CC-01 | 2015 | Active |
| Vantage Homes LLC | CC-01 | 2025 | Active |
| Veristone Homes LLC | CC-01 | 2017 | Active |
| Victory Painting LLC | CC-01 | 2022 | Renew by Nov 1, 2026 |
| Vieshiek Construction LLC | CC-01 | 2007 | Active |
| Voler Home Services LLC | CC-01 | 2026 | Active |
| Volkers Evolution Services LLC | CC-01 | 2026 | Active |
| W Commercial Flooring Inc | CC-01 | 2020 | Active |
| W R Hanson Inc | CC-01 | 1975 | Active |
| Waldron Works LLC | CC-01 | 2026 | Active |
| Wallpaper & Venetn Plstrng LLC | CC-01 | 2020 | Active |
| Washington Facility Maintnce | CC-01 | 2025 | Active |
| Washington Rooter, LLC | CC-01 | 2020 | Active |
| Westerly Roofs | CC-01 | 2023 | Active |
| Western Landscape & PVRS LLC | CC-01 | 2015 | Active |
| Whii CS LLC | CC-01 | 2026 | Active |
| Wickman Construction LLC | CC-01 | 2007 | Active |
| Willard's Pest Control Co | CC-01 | 2000 | Active |
| Willie G 3d LLC | CC-01 | 2026 | Active |
| Wilson Construction & RMDL LLC | CC-01 | 2026 | Active |
| Window Cleaning 4 U LLC | CC-01 | 2022 | Active |
| Wise Greens LLC | CC-01 | 2025 | Active |
| Wood Solutions | CC-01 | 2019 | Active |
| Woodman Construction Inc | CC-01 | 1984 | Active |
| Woodmark Construction Inc | CC-01 | 1998 | Active |
| WS Roof LLC | CC-01 | 2025 | Active |
| Xpress Construction Soltns LLC | CC-01 | 2024 | Active |
| Yaknbee Inc | CC-01 | 2018 | Active |
| Yas Construction & Rmdlng LLC | CC-01 | 2026 | Active |
| Yda Construction LLC | CC-01 | 2023 | Active |
| Year Round Landscaping LLC | CC-01 | 2022 | Active |
| Yz Construction LLC | CC-01 | 2023 | Active |
| Z&N Construction LLC | CC-01 | 2026 | Active |
| Zeus Garage Doors | CC-01 | 2026 | Active |