| Signature Painting & Construction LLC | RGC | 2026 | Active |
| Silver Fox Carpentry LLC | RGC | 2024 | Active |
| Silver Ridge Construction LLC | RGC | 2017 | Active |
| Silver Rock Services Inc | RGC | 2007 | Active |
| Simms Tile & Stone Creations LLC | RGC | 2006 | Active |
| Simpson Construction & Excavation LLC | RGC | 2017 | Active |
| Sisu Consulting LLC | RGC | 2025 | Active |
| Siteplan LLC | RGC | 2016 | Active |
| Six Of Harts Inc | RGC | 2019 | Active |
| SJ Elements LLC | RGC | 2014 | Active |
| Skilled Renovations & Repair LLC | RGC + LBPR | 2022 | Active |
| Skinner Construction Inc | RGC + LBPR | 2020 | Active |
| Sky Ridge Construction LLC | RGC | 2017 | Active |
| Skyhold Builders LLC | RGC | 2022 | Active |
| Skyline Blinds LLC | RGC | 2024 | Active |
| Skyline Custom Homes LLC | RGC + LBPR | 2024 | Active |
| Skyliner Floors LLC | RGC | 2021 | Active |
| Skylyn Ohlenkamp Construction LLC | RGC | 2019 | Active |
| Skywall LLC | RGC | 2022 | Active |
| Slaim Builders LLC | RGC | 2025 | Active |
| Smalling Construction Inc | CGC2, RGC | 1996 | Active |
| Smart Contractors Group LLC | RGC | 2023 | Active |
| Smith Drywall Inc | RGC | 2013 | Active |
| Smitty Construction Services LLC | RGC | 2018 | Active |
| Smokey Rock Construction LLC | RGC | 2016 | Active |
| Snappy Kats LLC | RGC | 2026 | Active |
| Snaptogether LLC | RGC | 2024 | Active |
| Snofox Equipment LLC | RGC | 2020 | Active |
| Solaire Residential LLC | RGC + LBPR | 2026 | Active |
| Solar Light Inc | RGC | 2015 | Active |
| Solid Builders LLC | RGC | 1998 | Renew by Nov 13, 2026 |
| Solid Pest Solutions LLC | RGC | 2023 | Active |
| Solomon Construction LLC | RGC | 2026 | Active |
| Solutions LLC | RGC | 2019 | Active |
| Solvi Custom Saunas LLC | RGC | 2025 | Active |
| Songster Farm LLC | RGC | 2023 | Active |
| Sons Drywall And Paint LLC | RGC | 2024 | Active |
| Sophie Bielefeld Construction Services Inc | RGC | 2018 | Active |
| South County Electric LLC | RGC | 2022 | Active |
| Southpaw Carpentry LLC | RGC | 2026 | Active |
| Southside Bend Co LLC | RGC | 2020 | Active |
| Southward Contracting Inc | RGC | 2003 | Active |
| Sovereign Construction LLC | RGC | 2021 | Active |
| Spar Tree Build Co LLC | RGC | 2023 | Active |
| Spar Tree LLC | RGC | 2023 | Active |
| SPD Construction LLC | RGC | 2021 | Active |
| Specialty Tower Services Inc | CGC2 | 1990 | Active |
| Spotlight Change LLC | RGC | 2020 | Renew by Nov 13, 2026 |
| Spring River Builders LLC | RGC | 1996 | Active |
| Square Hands Construction LLC | RGC | 2021 | Active |
| Square Peg Renovations LLC | RGC | 2016 | Active |
| Squaw Creek LLC | RGC | 2026 | Active |
| Squirrelhouse Inc | RGC | 2012 | Active |
| Steed Roofing LLC | RGC | 2021 | Active |
| Steele Earthworks LLC | CGC2, RGC | 2023 | Active |
| Steelhead Electric Service Inc | RGC | 2013 | Active |
| Stetsons Craft Woodworking LLC | RGC | 2025 | Active |
| STG Carpentry LLC | RGC | 2018 | Active |
| Stinson Construction LLC | CGC2, RGC | 2023 | Active |
| Stone & Timber Construction LLC | RGC | 2026 | Active |
| Stone Roofing & Construction Inc | CGC2, RGC | 2014 | Active |
| Stonefix Experts LLC | RGC | 2025 | Active |
| Storlie Brothers Construction LLC | CGC1, RGC | 2017 | Active |
| Story Co LLC | RGC | 2025 | Active |
| Straight Angle Contracting LLC | RGC | 2024 | Active |
| Strata Electric LLC | RGC | 2026 | Active |
| Structure Development NW LLC | RGC | 2009 | Active |
| Structure Services Inc | CGC2, RGC + LBPR | 2025 | Active |
| Studio 11e LLC | RGC | 2021 | Active |
| Sturn Building LLC | RGC | 2014 | Active |
| Summit Building Co LLC | RGC | 2026 | Active |
| Summit Construction And Design LLC | RGC | 2023 | Active |
| Summit Excavating Inc | RGC | 2018 | Active |
| Summit Excavation Inc | RGC | 2003 | Active |
| Summit Plumbing Co LLC | CGC2, RGC | 2009 | Active |
| Summit Power Systems Inc | CGC2, RGC | 2010 | Renew by Nov 18, 2026 |
| Summit Site Solutions LLC | RGC | 2026 | Active |
| Sun Construction Management Limited Liability Company | RGC | 2024 | Active |
| Sun Desert Drywall LLC | RGC | 2020 | Active |
| Sun Forest Construction LTD | RGC + LBPR | 2011 | Active |
| Sun Ridge Building Company LLC | RGC | 2010 | Active |
| Sunder Construction LLC | RGC | 2023 | Active |
| Sunlight Solar Energy Inc | RGC + CSC2 | 2004 | Active |
| Sunriver Glass And Mirror LLC | RGC + CSC2 | 2018 | Active |
| Sunriver Handyman Services LLC | RGC | 2025 | Active |
| Sunriver Homes & Land Development LLC | RGC | 2017 | Active |
| Sunset Plumbing Of Bend Inc | CGC2, RGC | 1990 | Active |
| Sunzeri Development LLC | RGC | 2026 | Active |
| Sutterfield Construction LLC | RGC | 2025 | Active |
| SW Commercial Construction LLC | RGC | 2023 | Active |
| Swift Dustless Demo LLC | RGC + CSC1 | 2022 | Active |
| Swindells Home Solutions LLC | RGC | 2026 | Active |
| T & T Construction Co | RGC | 2007 | Active |
| T Bone Cuts Carpentry LLC | RGC | 2025 | Active |
| Tac Construction Inc | CGC2, RGC | 1996 | Active |
| Tactical Roofing & Construction LLC | CGC2, RGC | 2023 | Active |
| Tactile LLC | RGC | 2025 | Active |
| Tailored Homes LLC | RGC | 2022 | Active |
| Tall Pines Carpentry And Construction LLC | RGC | 2017 | Active |
| Taylor Built NW Inc | RGC | 2013 | Active |