| PTPhoenix Truss Corporation | Ellensburg | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| QBQuanex Building Products Site | Yakima | WA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| QCQwest Corporation W00369 | Olympia | WA | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| RWRainier Wood Recyclers, Inc. | Maple Valley | WA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| RPRdk Prefinish Site | Woodinville | WA | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| RMRfp Manufacturing INC | Spanaway | WA | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| RLRiverside Lumber Company LLC | Snohomish | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| RTRoof Truss Supply INC | Tumwater | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| RTRoof Truss Supply INC | Bothell | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| RTRoof Truss Supply INC | Olympia | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| RTRoof Truss Supply INC | Mercer Island | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| RRR & R Wood Products LLC | Port Orchard | WA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| RWRts Woodinville | Woodinville | WA | Wood Product Manufacturing321215 | — | ◇ UNVERIFIED |
| SDS D S Lumber CO | Husum | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| SSSeattle Stair & Design | Seattle | WA | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| SWSedro Woolley Lumber CO | Sedro Woolley | WA | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| SSelco | Everson | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| S1Shakertown 1992 INC | Winlock | WA | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
 Sierra Pacific Industries - Shelton | Shelton | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| SLSimpson Lumber Company, LLC | Tacoma | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| STSimpson Timber Company | Shelton | WA | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| SLSpencer LLC Monroe | Monroe | WA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| SWSpinner Wood Products LLC | Naches | WA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| SPStandard Pallet Company | Rock Island | WA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| SCStructural Components INC | Yakima | WA | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| SPSunnyside Place LLC | Tacoma | WA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| SCSunspot Creative Services | Bellingham | WA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| SWSuperior Wood Treating | Sumner | WA | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| TPTaylormade Products INC | Sumner | WA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| TTechwood | Shelton | WA | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| TPThe Parr Company | Fife | WA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| TPThe Phoenix Truss Corp | Ellensburg | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TFTmi Forest Products INC | Morton | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| TTTravis Thornton | Veradale | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| TTTri-county Truss | Burlington | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TTTri-county Truss | Bellevue | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TGTrinity Glass International INC Lakewood | Lakewood | WA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| TCTruss Company | Puyallup | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TCTruss Company | Spanaway | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TCTruss Company | University Place | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TCTruss Company and Building | Spokane Valley | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TCTruss Company Pasco the | Kennewick | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TPTrussty Pals LLC | Spokane Valley | WA | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
| TPTrussty Pals LLC | Spokane Valley | WA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| TWTrus Way | Vancouver | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TWTrus Way INC | Richland | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TWTrus Way of Tri Cities INC | Pasco | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TWTrus Way Panels INC | Ridgefield | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| TITru-truss INC | Lacey | WA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| VQValley Quality Homes | Yakima | WA | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
