| UFUnion Forest Products Site | Union | — | ◇ UNVERIFIED |
| UPUnited Pacific Forest Products INC | Scappoose | — | ◇ UNVERIFIED |
| UFUniversal Forest Products | Woodburn | — | ◇ UNVERIFIED |
| UUnknown | Salem | — | ◇ UNVERIFIED |
| UAUS Army National Guard Camp Adair Ranges | Corvallis | — | ◇ UNVERIFIED |
| VMValley Milling & Lumber, LLC | Eugene | — | ◇ UNVERIFIED |
| VWValley Wood Products INC | Grants Pass | — | ◇ UNVERIFIED |
| VWVersatile Wood Products LLC | Portland | — | ◇ UNVERIFIED |
| VRViridian Reclaimed Wood | Portland | — | ◇ UNVERIFIED |
| VWViridian Wood Products | Portland | — | ◇ UNVERIFIED |
| WFWarrenton Fiber Company | Forest Grove | — | ◇ UNVERIFIED |
| WFWarrenton Fiber Company | Astoria | — | ◇ UNVERIFIED |
| WBWave Barriers INC | Hillsboro | — | ◇ UNVERIFIED |
| WMWesley Mckenzie | Central Point | — | ◇ UNVERIFIED |
| WCWestern Cascade Industries | Toledo | — | ◇ UNVERIFIED |
| WPWestern Pacific Building Materials, INC. | Portland | — | ◇ UNVERIFIED |
| WPWestern Pallet INC | Sherwood | — | ◇ UNVERIFIED |
| WPWestern Panel Manufacturing | Eugene | — | ◇ UNVERIFIED |
| WSWestern Structures | Eugene | — | ◇ UNVERIFIED |
| WOWest Oregon Wood Products INC | Columbia City | — | ◇ UNVERIFIED |
| WPWestview Products INC | Dallas | — | ◇ UNVERIFIED |
| WLWestwood Lumber Company, INC. | Reedsport | — | ◇ UNVERIFIED |
| WCWeyerhaeuser CO | Dallas | — | ◇ UNVERIFIED |
| WCWeyerhaeuser Company | Salem | — | ◇ UNVERIFIED |
| WMWeyerhaeuser - Millicoma Spill | — | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company | Dallas | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company | Cottage Grove | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company | Lebanon | — | ◇ UNVERIFIED |
| WWWhalen Wood Products LLC | Nehalem | — | ◇ UNVERIFIED |
| WMWhitsell Manufacturing INC | Cottage Grove | — | ◇ UNVERIFIED |
| WCWillamette Custom Woodworks LLC | Springfield | — | ◇ UNVERIFIED |
| WVWillamette Valley Staffing Services LLC | Jasper | — | ◇ UNVERIFIED |
| WOWilson Operations INC | Lyons | — | ◇ UNVERIFIED |
| WBWood Bear Mfg INC | Albany | — | ◇ UNVERIFIED |
| WWWooddale Windows LLC | Portland | — | ◇ UNVERIFIED |
| WMWoodgrain Millwork INC | Prineville | — | ◇ UNVERIFIED |
| WLWoodminds LLC | Albany | — | ◇ UNVERIFIED |
| WIWpk INC | Sweet Home | — | ◇ UNVERIFIED |
| WHWren Hill Lumber, LLC | Philomath | — | ◇ UNVERIFIED |
| ZOZip O Log Mill INC | Eugene | — | ◇ UNVERIFIED |
| ZMZip-o-log Mills INC | Eugene | — | ◇ UNVERIFIED |
