| Olympic Millwork LLC | CC-01 | 2019 | Active |
| Omar Construction Services LLC | CC-01 | 2017 | Active |
| Omar's Demolition & Const LLC | CC-01 | 2025 | Active |
| Omega General Cont LLC | CC-01 | 2025 | Active |
| Omega Limited Construction LLC | CC-01 | 2007 | Active |
| On Sight Access LLC | CC-01 | 2013 | Active |
| One Design Build LLC | CC-01 | 2016 | Active |
| One Hardscaping & Const LLC | CC-01 | 2026 | Active |
| One Step Envir Abatement LLC | CC-01 | 2001 | Active |
| One Stop Building And Reno LLC | CC-01 | 2024 | Renew by Dec 5, 2026 |
| One Stop Services LLC | CC-01 | 2006 | Active |
| One Workplace | CC-01 | 2026 | Active |
| Oneenergy Construction LLC | CC-01 | 2025 | Active |
| Onni Boren Ave Seattle LLC | CC-01 | 2022 | Active |
| OPM Landscaping LLC | CC-01 | 2015 | Active |
| Optimum Energy Co Wa LLC | CC-01 | 2025 | Active |
| Optimum Handyman LLC | CC-01 | 2026 | Active |
| Optimus Const And Dev Inc | CC-01 | 2015 | Active |
| Orbit RFNG And Renovations LLC | CC-01 | 2024 | Active |
| Orion Rockscapes Inc | CC-01 | 2008 | Active |
| Orraman LLC | CC-01 | 2026 | Active |
| Ose Construction LLC | CC-01 | 2026 | Active |
| Our Contractor LLC | CC-01 | 2026 | Active |
| Out Of Round Design LLC | CC-01 | 2018 | Active |
| Outdoor Oasis LLC | CC-01 | 2024 | Active |
| Oxbow Fabrications | CC-01 | 2019 | Active |
| P B Construction LLC | CC-01 | 2008 | Active |
| P J F Enterprises Inc | CC-01 | 2007 | Active |
| Pablo's Painting & Srvcs LLC | CC-01 | 2022 | Active |
| Pacific Architectrl Metals LLC | CC-01 | 2021 | Active |
| Pacific Custom Const Inc | CC-01 | 1992 | Active |
| Pacific Evergreen Strctrs LLC | CC-01 | 2025 | Active |
| Pacific Facility Services LLC | CC-01 | 2017 | Active |
| Pacific Homes LLC | CC-01 | 2017 | Active |
| Pacific Landscape | CC-01 | 2026 | Active |
| Pacific Living Constr LLC | CC-01 | 2015 | Active |
| Pacific Northwest PNTG SVC LLC | CC-01 | 2014 | Active |
| Pacific Northwest Termnls Inc | CC-01 | 2016 | Active |
| Pacific NW Siding/Windows Inc | CC-01 | 2001 | Active |
| Pacific Painting & Servs LLC | CC-01 | 2023 | Active |
| Pacific Parking Lot Maint | CC-01 | 2018 | Active |
| Pacific Partners | CC-01 | 2025 | Active |
| Pacific Pile & Marine LP | CC-01 | 2008 | Active |
| Pacific Sound Soln Const Inc | CC-01 | 2025 | Active |
| Pacific Spray Systems | CC-01 | 2024 | Active |
| Pacific Tile & GNRL Contr LLC | CC-01 | 2022 | Active |
| Pacific Transformation LLC | CC-01 | 2023 | Active |
| Pacifica Landscapes | CC-01 | 2026 | Active |
| Pahlka Contracting LLC | CC-01 | 2022 | Active |
| Painting Express LLC | CC-01 | 2025 | Active |
| Paintpros LLC | CC-01 | 2017 | Active |
| Palatine Construction LLC | CC-01 | 2014 | Active |
| Palette Interior PNTG Stud LLC | CC-01 | 2024 | Active |
| Palmer Const And Remodel LLC | CC-01 | 2007 | Active |
| Panef Construction LLC | CC-01 | 2024 | Active |
| Paradigm Framing Link Inc | CC-01 | 1998 | Active |
| Parametric Construction LLC | CC-01 | 2021 | Active |
| Partwise LLC | CC-01 | 2025 | Active |
| Patricelli Construction Inc | CC-01 | 1998 | Active |
| Patrick Archer Construct Inc | CC-01 | 2006 | Active |
| Pau Hana Productions LLC | CC-01 | 2013 | Active |
| Paul Stoner Construction LLC | CC-01 | 2002 | Active |
| Paulsen Const Srvcs LLC | CC-01 | 2001 | Active |
| PBP Built LLC | CC-01 | 2026 | Active |
| Peak General Contracting LLC | CC-01 | 2020 | Active |
| Pedestal Construction LLC | CC-01 | 2025 | Active |
| Pedrozo Construction LLC | CC-01 | 2026 | Active |
| Pelletier Construction GRP LLC | CC-01 | 2023 | Active |
| Penhall Company | CC-01 | 1990 | Active |
| Peninsula Contracting Services | CC-01 | 1999 | Renew by Dec 5, 2026 |
| Perdigon Roofing | CC-01 | 2023 | Active |
| Peregrine Construction LLC | CC-01 | 2021 | Active |
| Perfect Square Carpentry LLC | CC-01 | 2021 | Active |
| Perpetuity LLC | CC-01 | 2013 | Active |
| Pete Celovsky Design LLC | CC-01 | 2014 | Active |
| Peterson Works LLC | CC-01 | 2012 | Active |
| Petric Paint And Remodel LLC | CC-01 | 2025 | Active |
| Phil's Home Services LLC | CC-01 | 2021 | Active |
| Phinney Ridge Painting LLC | CC-01 | 2011 | Active |
| Pierce Klein Contracting LLC | CC-01 | 2009 | Active |
| Piko Construction Inc | CC-01 | 2011 | Active |
| Pillar Resources | CC-01 | 2015 | Active |
| Pin Point Painting & Const LLC | CC-01 | 2012 | Active |
| Pineview Interiors LLC | CC-01 | 2026 | Active |
| Pinky's Plumbing LLC | CC-01 | 2010 | Active |
| Pinnacle Custom Floors | CC-01 | 1994 | Active |
| Pioneer Human Services | CC-01 | 2006 | Active |
| Pioneer Masonry Rstrtn Co Inc | CC-01 | 1988 | Active |
| Pipewright Inc | CC-01 | 2004 | Active |
| Pius Kitchen & Bath Inc | CC-01 | 2007 | Active |
| Pixar Roofing & Masonry LLC | CC-01 | 2026 | Active |
| PJ Construction Group | CC-01 | 2018 | Active |
| Pj-Tile LLC | CC-01 | 2017 | Active |
| Places | CC-01 | 2024 | Active |
| Planet Rock Construction LLC | CC-01 | 2025 | Active |
| Play-Creation Inc | CC-01 | 2010 | Active |
| Plum Construction LLC | CC-01 | 2011 | Active |
| Plum Projects LLC | CC-01 | 2010 | Active |
| Plumb Landscapes Inc | CC-01 | 2014 | Active |
| Plumb Level Square LLC | CC-01 | 2014 | Active |