| Central Oregon Sound & Security LLC | CGC2 | 2007 | Active |
| Central Oregon Tree Works LLC | RGC | 2026 | Active |
| Cesar Flooring LLC | RGC | 2024 | Active |
| CG Brothers Construction LLC | RGC | 2017 | Active |
| Chaco Painting LLC | CGC2, RGC | 2019 | Active |
| Charles Koutnik Construction LLC | RGC | 2024 | Active |
| Chets Electric LLC | CGC2 | 2011 | Active |
| Chinos Painting LLC | RGC | 2023 | Active |
| Christiansens Contracting Company LLC | CGC2, RGC | 2011 | Active |
| Chrome Construction Services LLC | RGC | 2015 | Active |
| Cinder Butte Construction LLC | RGC | 2024 | Renew by Dec 18, 2026 |
| Ck1 Inc | RGC | 1997 | Active |
| Clauson Drywall & Painting LLC | RGC | 2012 | Active |
| Cline Falls Woodworks LLC | RGC | 2021 | Active |
| Co Apex Builders LLC | RGC | 2023 | Active |
| Common Folk Construction LLC | RGC | 2020 | Active |
| Con-Quest Concrete Construction LLC | RGC | 2021 | Active |
| Congo Group LLC | RGC | 2016 | Active |
| Construction Services Inc | RGC | 2008 | Active |
| Copeland Fencing & Construction LLC | RGC | 2014 | Active |
| Cornerstone Lock And Key LLC | RGC | 2021 | Active |
| Cortes Contractors LLC | RGC | 2016 | Active |
| Covenant Homes LLC | RGC | 2025 | Active |
| Cow Creek Excavating LLC | RGC | 2020 | Active |
| Cox Custom Welding LLC | CGC2, RGC | 2016 | Active |
| Cozine Design LLC | RGC | 2024 | Active |
| Creative Flooring And Remodeling LLC | RGC | 2026 | Active |
| Crispy Construction LLC | RGC | 2016 | Active |
| Crossroads Home And Energy Enhancements LLC | RGC | 2025 | Active |
| Cushion Tennis Courts LLC | RGC | 2008 | Active |
| Custom Shade Solutions LLC | CGC2, RGC | 2023 | Active |
| D & F Construction Concepts LLC | RGC | 2024 | Active |
| D4 Drill And Blast LLC | CGC2, RGC | 2024 | Active |
| D4 Explosives LLC | CGC2, RGC | 2024 | Active |
| Dagex LLC | RGC | 2014 | Active |
| Damein Drywall LLC | RGC | 2023 | Active |
| Dan Davis Construction Inc | RGC | 2014 | Renew by Nov 10, 2026 |
| Daniel Anderson Construction LLC | RGC | 2020 | Active |
| Danny Dark Quality Construction Inc | RGC | 2005 | Active |
| Dannybuilt LLC | RGC | 2021 | Active |
| Darren E Mandich Construction LLC | RGC | 2020 | Active |
| David Finley Painting LLC | RGC | 2023 | Active |
| David Tisiot General Contractor LLC | CGC2, RGC | 2013 | Active |
| DB Timber Falling LLC | RGC | 2024 | Active |
| DCW Construction LLC | RGC | 2023 | Active |
| Decor Construction LLC | RGC | 2019 | Active |
| Deep Rock Underground And Demo LLC | RGC | 2023 | Active |
| Demren Harnden LLC | RGC | 2020 | Active |
| Depoe Excavation LLC | CGC2 | 2020 | Renew by Nov 18, 2026 |
| Deschutes Construction Corporation | CGC2, RGC | 2007 | Active |
| Deschutes Residential Construction Inc | CGC2, RGC | 2015 | Active |
| Desert Falls Home Builders LLC | RGC | 2025 | Active |
| Desoto Painting And Design LLC | RGC | 2016 | Active |
| Dextra Construction LLC | RGC | 2016 | Active |
| Diamex Construction LLC | RGC | 2023 | Active |
| Diamond B Enterprises Inc | RGC | 2021 | Active |
| Diamond Fencing And Construction LLC | RGC | 2025 | Active |
| Diamond Refrigeration LLC | CGC2, RGC | 2013 | Active |
| Diegos Construction Limited Liability Company | RGC | 2020 | Active |
| Dje Remodel And Design LLC | RGC | 2020 | Active |
| DLD Painting LLC | RGC | 2021 | Active |
| Dna Home Services LLC | RGC | 2026 | Active |
| Drew Lee Home Remodeling LLC | RGC | 2019 | Active |
| Dry Canyon Communications LLC | CGC2 | 2009 | Active |
| Dry Canyon Construction LLC | RGC | 2026 | Active |
| Dry Canyon Home Solutions LLC | RGC | 2023 | Active |
| Dry Canyon Plumbing LLC | RGC | 2026 | Active |
| Dry Fly General Contracting LLC | RGC | 2020 | Active |
| Dry River Construction LLC | RGC | 2013 | Active |
| Dryve Construction LLC | RGC | 2024 | Active |
| DSR Design LLC | RGC | 2018 | Active |
| DTS Construction LLC | RGC | 2026 | Active |
| Dwayne Foster Construction LLC | RGC | 2023 | Active |
| Eagle Restoration LLC | CGC1, RGC | 2018 | Renew by Dec 4, 2026 |
| Eddleman Electric LLC | RGC | 2019 | Active |
| Eim Construction LLC | RGC | 2023 | Active |
| Elegant Navat Painting LLC | RGC | 2017 | Active |
| Elevate Development Group LLC | RGC | 2026 | Active |
| Elite Elevation Construction LLC | RGC | 2026 | Active |
| Elite Roofing LLC | CGC2, RGC | 2014 | Active |
| Elk Ridge Painting LLC | RGC | 2025 | Active |
| Ellefson Construction LLC | RGC | 2022 | Active |
| Emagineered Solutions Inc | CGC2 | 2016 | Active |
| Emc Contractor LLC | RGC | 2019 | Active |
| Empire Drywall LLC | RGC | 2019 | Active |
| Eveland & Sons Painting LLC | RGC | 2024 | Active |
| Even Better Homes Inc | RGC | 2008 | Active |
| Evergreen General Contracting & Remodeling LLC | RGC | 2025 | Active |
| Every Edge Construction LLC | RGC | 2026 | Active |
| Exodus Innovation LLC | RGC | 2024 | Renew by Nov 20, 2026 |
| Fa-2 Construction LLC | RGC | 2018 | Active |
| Fahertys Plumbing & Construction Services LLC | RGC | 2023 | Active |
| Fair & Square Handiwork LLC | RGC | 2019 | Active |
| Family Tree Construction LLC | RGC | 2024 | Active |
| Fidel Robles Masonry LLC | RGC | 2023 | Active |
| Fine Edge Construction LLC | RGC | 2025 | Active |
| Fine Finish LLC | RGC | 2022 | Active |
| Fine Line Maintenance LLC | RGC | 2025 | Active |
| Fire Up Construction LLC | RGC | 2017 | Active |
| Fisher Electric LLC | RGC | 2026 | Active |