| NDNorthwest Door INC | Puyallup | — | ◇ UNVERIFIED |
| NRNorthwest Renewable Energy Group, LLC | Enumclaw | — | ◇ UNVERIFIED |
| NTNorthwest Truss | Kennewick | — | ◇ UNVERIFIED |
| NFNumatic Finishing Corporation | Auburn | — | ◇ UNVERIFIED |
| OCOeser CO | Bellingham | — | ◇ UNVERIFIED |
| OCOeser Company the | Sumas | — | ◇ UNVERIFIED |
| OCOlympic Cedar Products INC | Forks | — | ◇ UNVERIFIED |
| OWOmak Wood Products (owp | Omak | — | ◇ UNVERIFIED |
| PBPacific Bay INC | Tacoma | — | ◇ UNVERIFIED |
| PSPacific Shingle INC | Forks | — | ◇ UNVERIFIED |
| PSPallet Services INC | Mount Vernon | — | ◇ UNVERIFIED |
| PSPallet Services INC | Burlington | — | ◇ UNVERIFIED |
| PSPallet Services INC | Pasco | — | ◇ UNVERIFIED |
| PLPalmer Lumber CO. | Chehalis | — | ◇ UNVERIFIED |
| PTPeninsula Truss LLC | Silverdale | — | ◇ UNVERIFIED |
| PLPerry Land, LLC | Ferndale | — | ◇ UNVERIFIED |
| PTPhoenix Truss Corporation | Ellensburg | — | ◇ UNVERIFIED |
| PTPhoenix Truss Corporation | Ellensburg | — | ◇ UNVERIFIED |
| QBQuanex Building Products Site | Yakima | — | ◇ UNVERIFIED |
| QCQwest Corporation W00369 | Olympia | — | ◇ UNVERIFIED |
| RWRainier Wood Recyclers, Inc. | Maple Valley | — | ◇ UNVERIFIED |
| RPRdk Prefinish Site | Woodinville | — | ◇ UNVERIFIED |
| RMRfp Manufacturing INC | Spanaway | — | ◇ UNVERIFIED |
| RLRiverside Lumber Company LLC | Snohomish | — | ◇ UNVERIFIED |
| RTRoof Truss Supply INC | Tumwater | — | ◇ UNVERIFIED |
| RTRoof Truss Supply INC | Bothell | — | ◇ UNVERIFIED |
| RTRoof Truss Supply INC | Mercer Island | — | ◇ UNVERIFIED |
| RTRoof Truss Supply INC | Olympia | — | ◇ UNVERIFIED |
| RRR & R Wood Products LLC | Port Orchard | — | ◇ UNVERIFIED |
| RWRts Woodinville | Woodinville | — | ◇ UNVERIFIED |
| SDS D S Lumber CO | Husum | — | ◇ UNVERIFIED |
| SSSeattle Stair & Design | Seattle | — | ◇ UNVERIFIED |
| SWSedro Woolley Lumber CO | Sedro Woolley | — | ◇ UNVERIFIED |
| SSelco | Everson | — | ◇ UNVERIFIED |
| S1Shakertown 1992 INC | Winlock | — | ◇ UNVERIFIED |
 Sierra Pacific Industries - Shelton | Shelton | — | ◇ UNVERIFIED |
| SLSimpson Lumber Company, LLC | Tacoma | — | ◇ UNVERIFIED |
| STSimpson Timber Company | Shelton | — | ◇ UNVERIFIED |
| SWSound Wood Properties LLC | Chehalis | — | ◇ UNVERIFIED |
| SLSpencer LLC Monroe | Monroe | — | ◇ UNVERIFIED |
| SWSpinner Wood Products LLC | Naches | — | ◇ UNVERIFIED |
| SPStandard Pallet Company | Rock Island | — | ◇ UNVERIFIED |
| SCStructural Components INC | Yakima | — | ◇ UNVERIFIED |
| SPSunnyside Place LLC | Tacoma | — | ◇ UNVERIFIED |
| SCSunspot Creative Services | Bellingham | — | ◇ UNVERIFIED |
| SWSuperior Wood Treating | Sumner | — | ◇ UNVERIFIED |
| TPTaylormade Products INC | Sumner | — | ◇ UNVERIFIED |
| TTechwood | Shelton | — | ◇ UNVERIFIED |
| TPThe Parr Company | Fife | — | ◇ UNVERIFIED |
| TPThe Phoenix Truss Corp | Ellensburg | — | ◇ UNVERIFIED |
