| Majic Works LLC | RGC | 2013 | Active |
| Makana Homes And Consulting LLC | RGC | 2018 | Active |
| Maldonado Construction LLC | RGC | 2010 | Renew by Nov 30, 2026 |
| Maller Painting LLC | RGC | 2019 | Active |
| Manda LLC | RGC | 2026 | Active |
| Manzano Brothers Construction Inc | RGC | 2014 | Active |
| Marin Construction LLC | RGC | 2022 | Renew by Nov 13, 2026 |
| Marstom Flooring LLC | RGC | 2017 | Active |
| Marvel Construction LLC | CGC2, RGC | 2017 | Active |
| Master Av Drywall LLC | RGC | 2025 | Active |
| Master Siding & Construction LLC | RGC | 2023 | Active |
| Masters Builders Group LLC | RGC | 2025 | Active |
| Mastery Painting LLC | RGC | 2016 | Active |
| Mastery Painting NW LLC | RGC | 2026 | Active |
| Matas Construction LLC | RGC | 2018 | Active |
| Maughan Design Inc | RGC | 2010 | Active |
| Max Pro Painting And Construction LLC | RGC | 2019 | Active |
| McAllister Construction Co | RGC | 1985 | Renew by Dec 23, 2026 |
| McCurry Enterprises LLC | RGC | 2024 | Active |
| McNulty Flooring LLC | CGC2 | 2006 | Active |
| MD Plumbing LLC | CGC2, RGC | 2014 | Active |
| MD Watson Construction Inc | RGC | 2005 | Active |
| Mendez Concrete Experts LLC | RGC | 2017 | Active |
| Mep Pros Inc | CGC2, RGC | 2020 | Active |
| Mercenary Industries Inc | RGC | 2015 | Active |
| MG Gutter Services LLC | RGC | 2019 | Active |
| MG Painting And Remodeling LLC | RGC | 2023 | Active |
| MGC Flooring LLC | RGC | 2022 | Active |
| Miget Artizan Handyman & Construction LLC | RGC | 2024 | Renew by Dec 17, 2026 |
| Mike Smith Remodeling Inc | RGC | 1978 | Active |
| Mikes Foundation Experts LLC | RGC | 2007 | Active |
| Milam Home Services LLC | RGC | 2026 | Active |
| Milestone Construction LLC | RGC | 2026 | Active |
| Mills Contracting LLC | RGC | 2019 | Active |
| Milton Yard Maintenance Inc | RGC | 2014 | Active |
| Mirahomes Inc | RGC | 2008 | Active |
| Mk875 Construction LLC | RGC | 2017 | Active |
| MM Painting & Cleaning LLC | RGC | 2023 | Active |
| Modern Era Construction Inc | RGC | 2014 | Active |
| Modern Exterior Construction LLC | RGC | 2022 | Active |
| Modern Tiles LLC | RGC | 2025 | Active |
| Modifi LLC | RGC | 2012 | Active |
| Molinas Framing LLC | RGC | 2018 | Active |
| Mollenhauer Enterprises Inc | CGC2, RGC | 2010 | Active |
| Monarch Brothers LLC | RGC | 2021 | Active |
| Monogram Builders LLC | RGC | 2018 | Renew by Nov 8, 2026 |
| Montoyas Drywall LLC | RGC | 2023 | Active |
| Mottos Painting & Fine Finishes Inc | RGC | 1992 | Active |
| MPS Heating & Cooling LLC | CGC2, RGC | 2010 | Active |
| Mr Freeze Heating And Air Conditioning LLC | RGC | 2024 | Active |
| Mr Pro Painting LLC | RGC | 2026 | Active |
| Mr V Landscaping Services LLC | RGC | 2023 | Active |
| MRLM Construction LLC | RGC | 2021 | Active |
| MS Glass Outlet Inc 1 | CGC2, RGC | 2005 | Active |
| MS Timber Construction LLC | RGC | 2019 | Active |
| MSV Painting LLC | RGC | 2018 | Active |
| Mt Zion LLC | RGC | 2019 | Active |
| Multipurpose Construction Company Inc | RGC | 2020 | Active |
| Multy Color Nova Paint LLC | RGC | 2020 | Active |
| Murison Home Innovations Inc | RGC | 2015 | Active |
| Murrayhill Remodeling LLC | RGC | 2013 | Active |
| Myla Construction LLC | RGC | 2020 | Active |
| Nako And Associates Inc | RGC | 2025 | Active |
| Nancys House Cleaning And Carpet Cleaning LLC | RGC | 2025 | Active |
| Neek Engineering Inc | CGC2 | 1999 | Active |
| New Beginnings Remodeling & Construction LLC | RGC | 2025 | Active |
| New Generation Remodeling LLC | RGC | 2022 | Renew by Nov 23, 2026 |
| New Generation Roofing Improvements LLC | RGC | 2025 | Active |
| New Purpose Drywall LLC | CGC2, RGC | 2022 | Active |
| Next Level Gutters And Roofs LLC | RGC | 2023 | Active |
| Nice Drywall LLC | RGC | 2023 | Active |
| Nit Solutions LLC | RGC | 2026 | Active |
| NK Construction LLC | RGC | 2024 | Renew by Dec 26, 2026 |
| Nodak Residential Repair LLC | RGC | 2006 | Active |
| Nolans Painting LLC | RGC | 2024 | Active |
| Nomah LLC | RGC | 2023 | Active |
| North Coast Painting LLC | RGC | 2023 | Active |
| North West Construction DMD LLC | RGC | 2026 | Active |
| Northwest Engineering Service Inc | CGC1 | 2010 | Active |
| Northwest Fire Inc | CGC2 | 1990 | Active |
| Northwest Plumbing & Drain Inc | RGC | 2004 | Active |
| Now Nerd Corporation | RGC | 2024 | Active |
| Noyes Development Co | RGC | 2024 | Renew by Dec 11, 2026 |
| Nuvo Construction LLC | CGC2, RGC | 2015 | Active |
| NW Contractor Contracting LLC | RGC | 2018 | Active |
| NW Custom Structures LLC | RGC | 2017 | Active |
| NW Frameworks Construction LLC | RGC | 2025 | Active |
| NW Kingdom Painting LLC | RGC | 2022 | Active |
| NW Madera Flooring LLC | RGC | 2017 | Active |
| NW Modern Decks & Fences LLC | RGC | 2016 | Active |
| NW Skyline Drywall LLC | CGC2, RGC | 2023 | Active |
| NW Solutions LLC | RGC | 2024 | Active |
| Odyssey Consulting Inc | RGC | 2023 | Active |
| Omega Investments LLC | CGC2, RGC | 2019 | Active |
| One Stop Electric LLC | CGC2, RGC | 2025 | Active |
| Onsite Interiors LLC | RGC | 2026 | Active |
| Oregon Builder Pros LLC | RGC | 2025 | Active |
| Oregon Green Builders LLC | RGC | 2023 | Active |
| Oregon Heating & Air Conditioning LLC | CGC1, RGC | 1999 | Active |
| Oregon Homeworks LLC | RGC | 2009 | Active |