| Sbi | CC-01 | 2023 | Active |
| SBK Communications, LLC | CC-01 | 2021 | Active |
| Scott's Handy Services LLC | CC-01 | 2020 | Active |
| SD Renovation LLC | CC-01 | 2026 | Active |
| Sea-Calv Contractors LLC | CC-01 | 2023 | Active |
| Seaco Construction LLC | CC-01 | 2017 | Active |
| Seatac Enterprise LLC | CC-01 | 2018 | Active |
| Seattle General Contr LLC | CC-01 | 2022 | Active |
| Seattle Glass & Window LLC | CC-01 | 2020 | Active |
| Seattle Products LLC | CC-01 | 2020 | Active |
| Seattle Remodeling Srvcs LLC | CC-01 | 2021 | Active |
| Seattle Renovation Group LLC | CC-01 | 2022 | Active |
| Sebastian GC Inc | CC-01 | 2022 | Active |
| Serene General Const LLC | CC-01 | 2025 | Active |
| Service Ventures Inc | CC-01 | 2022 | Active |
| Services Of Const Crossrd LLC | CC-01 | 2016 | Active |
| Servpro Of Central Seattle | CC-01 | 2009 | Active |
| Shab Tile & Stone LLC | CC-01 | 2021 | Active |
| Shadow Lake Industries LLC | CC-01 | 2025 | Active |
| Shamrock Landscaping LLC | CC-01 | 2001 | Active |
| Shelton Construction LLC | CC-01 | 2018 | Active |
| Shengtang Building Decor LLC | CC-01 | 2026 | Active |
| Shinn Mechanical Inc | CC-01 | 1994 | Active |
| Shnyt LLC | CC-01 | 2018 | Active |
| Siding Solution Pro LLC | CC-01 | 2025 | Active |
| Signature Builder Solutions | CC-01 | 2024 | Active |
| Signature Interiors & Design | CC-01 | 2006 | Active |
| Signature Widws/ Dr Replt Inc | CC-01 | 2015 | Active |
| Simma Restoration Group LLC | CC-01 | 2017 | Active |
| Simple Builds LLC | CC-01 | 2025 | Active |
| Simply Painting Inc | CC-01 | 2016 | Active |
| SJ Prestige Build LLC | CC-01 | 2026 | Active |
| Skydancer LLC | CC-01 | 2026 | Active |
| Skyline General Contctrs LLC | CC-01 | 2022 | Active |
| Skyreach Communication LLC | CC-01 | 2026 | Active |
| Smartdecks LLC | CC-01 | 2024 | Active |
| Smith Exteriors LLC | CC-01 | 2022 | Active |
| Sockeye Homes | CC-01 | 2007 | Active |
| Solutions Roofing LLC | CC-01 | 2025 | Active |
| Son Ha Construction Servs LLC | CC-01 | 2025 | Active |
| Sonic Builders LLC | CC-01 | 2023 | Active |
| Sonikfranz LLC | CC-01 | 2023 | Active |
| Soundview Woodworks, LLC | CC-01 | 2024 | Active |
| Southside Restoration LLC | CC-01 | 2018 | Active |
| Spiller Corporation | CC-01 | 2014 | Active |
| Splendor Construction LLC | CC-01 | 2025 | Active |
| SS Construction Company LLC | CC-01 | 2023 | Active |
| SSB Septic Service LLC | CC-01 | 2024 | Active |
| Starbright Chmny Sw/Msnry LLC | CC-01 | 2022 | Active |
| Stellar Const & Dev LLC | CC-01 | 2012 | Active |
| Steve's Painting & Remdlng LLC | CC-01 | 2017 | Active |
| Stockholm Construction LLC | CC-01 | 2024 | Active |
| Stockman Custom Cbnt&Mlwrk LLC | CC-01 | 2026 | Active |
| Stone And Beam LLC | CC-01 | 2024 | Renew by Nov 7, 2026 |
| Straightline Fence & Const Inc | CC-01 | 1997 | Active |
| Stromberg-Construction LLC | CC-01 | 2024 | Active |
| Stylecraft Construction LLC | CC-01 | 2026 | Active |
| Suazo Flooring LLC | CC-01 | 2018 | Active |
| Summit Contractor SC LLC | CC-01 | 2026 | Active |
| Sunrise Glass Inc | CC-01 | 2019 | Active |
| Sunrise Plumbing | CC-01 | 2019 | Active |
| Super Fire & Sprinkler LLC | CC-01 | 2026 | Active |
| Superior Quality Const SVS LLC | CC-01 | 2026 | Active |
| Superior STL & Ironworkers Inc | CC-01 | 2013 | Active |
| Sutton Services LLC | CC-01 | 2019 | Active |
| SVM Construction Inc | CC-01 | 2016 | Active |
| SVS Total Construction LLC | CC-01 | 2024 | Renew by Dec 9, 2026 |
| T-Modor LLC | CC-01 | 2026 | Active |
| Taa Services LLC | CC-01 | 2017 | Active |
| Tapis Flooring LLC | CC-01 | 2020 | Active |
| Team Roofing Northwest LLC | CC-01 | 2020 | Active |
| The Beast Painter | CC-01 | 2018 | Active |
| The Best Construction Qlty LLC | CC-01 | 2024 | Active |
| The Best Remodeling & RPR LLC | CC-01 | 2021 | Active |
| The Castle For Gen Contrng LLC | CC-01 | 2026 | Active |
| The Creative Carpenter LLC | CC-01 | 2019 | Active |
| The Cressy Door Company LLC | CC-01 | 2026 | Active |
| The Kraken Construction LLC | CC-01 | 2021 | Active |
| The Master Drywall LLC | CC-01 | 2016 | Active |
| The NW Paint Guy LLC | CC-01 | 2019 | Active |
| The Present Landscaping LLC | CC-01 | 2023 | Active |
| Their Hammer Construction LLC | CC-01 | 2025 | Active |
| Thomas Contractors LLC | CC-01 | 2023 | Active |
| Three Tree Roofing Company LLC | CC-01 | 2017 | Active |
| Tiger Remodeling & Pntng LLC | CC-01 | 2026 | Active |
| Tim And A Team Inc | CC-01 | 2001 | Active |
| Tim Work Construction LLC | CC-01 | 2026 | Active |
| Timber Mount LLC | CC-01 | 2025 | Active |
| Tirupati Inc | CC-01 | 2014 | Active |
| TL Top Quality Remodeling LLC | CC-01 | 2024 | Renew by Nov 21, 2026 |
| TNWB Construction LLC | CC-01 | 2026 | Active |
| Todorov LLC | CC-01 | 2026 | Active |
| Tom Cheng Window Coverings LLC | CC-01 | 2026 | Active |
| Tony Lind Paving | CC-01 | 2021 | Active |
| Tony's Remodeling & Pantng LLC | CC-01 | 2021 | Active |
| Top Const & Invstmnt Group LLC | CC-01 | 2026 | Active |
| TPB Quality Tile LLC | CC-01 | 2023 | Active |
| Tractor & Truck Dirt Works LLC | CC-01 | 2024 | Active |
| Treatment Equipment Company | CC-01 | 2018 | Active |
| Trinity Const Builders LLC | CC-01 | 2009 | Active |