| ASArclin Surfaces, LLC | Tacoma | 20–99 | ● ACTIVE |
Fatigue Technology, INC | Tukwila | — | ● ACTIVE |
| NDNippon Dynawave Packaging Longview Wa | Longview | 500+ | ● ACTIVE |
| NPNorth Pacific Paper Company LLC | Longview | 100–499 | ● ACTIVE |
| PPPac Paper INC | Vancouver | 100–499 | ● ACTIVE |
American Retail Supply CORP | Puyallup | — | ● ACTIVE |
Palouse Fiber LLC | Pomeroy | — | ● ACTIVE |
Portco CORP | Woodland | — | ● ACTIVE |
Sp Holdings, INC | Renton | — | ● ACTIVE |
Sp Holdings, INC. | Spokane Valley | — | ● ACTIVE |
| BWBoise White Paper LLC | Wallula | — | ◐ LIKELY ACTIVE |
| CBCommencement Bay Corrugated | Orting | 100–499 | ◐ LIKELY ACTIVE |
Georgia Pacific Consumer Products | Camas | — | ◐ LIKELY ACTIVE |
| NPNippon Paper CO | Port Angeles | — | ◐ LIKELY ACTIVE |
| PIPaneltech International LLC | Hoquiam | — | ◐ LIKELY ACTIVE |
| PTPort Townsend Paper Mill | Port Townsend | — | ◐ LIKELY ACTIVE |
| RPRainier Plywood | Tacoma | — | ◐ LIKELY ACTIVE |
| STSimpson Tacoma | Tacoma | — | ◐ LIKELY ACTIVE |
| SSSmurfit Stone Container CORP | Tacoma | — | ◐ LIKELY ACTIVE |
| SPSonderen Packaging | Spokane | 100–499 | ◐ LIKELY ACTIVE |
Sonoco Products CO 1802 Steele | Sumner | — | ◐ LIKELY ACTIVE |
| GPGeorgia Pacific Corrugated LLC Olympia | Olympia | — | ◐ LIKELY ACTIVE |
| HLHarpo LLC | Aberdeen | — | ◐ LIKELY ACTIVE |
| JCJohnson Concentrates | Sunnyside | — | ◐ LIKELY ACTIVE |
| KCKapstone Container Plant Yakima | Yakima | — | ◐ LIKELY ACTIVE |
| NPNorthwest Paper Box Mfrs. Inc., Camas | Camas | 20–99 | ◐ LIKELY ACTIVE |
| PCPacific Container CORP | Tacoma | 20–99 | ◐ LIKELY ACTIVE |
| PNPonderay Newsprint Company | Usk | — | ◐ LIKELY ACTIVE |
| PTPort Townsend Paper Corporation | Port Townsend | 100–499 | ◐ LIKELY ACTIVE |
| SASealed Air Renton, WA | Renton | 20–99 | ◐ LIKELY ACTIVE |
| SUSheets Unlimited | Renton | 100–499 | ◐ LIKELY ACTIVE |
| SPSpokane Packaging | Spokane | 20–99 | ◐ LIKELY ACTIVE |
| TPTetra Pak Materials LP | Vancouver | — | ◐ LIKELY ACTIVE |
| WCWeyerhaeuser CO Box Plant | Olympia | — | ◐ LIKELY ACTIVE |
| EPExcelsior Packaging Group INC | Vancouver | — | ◐ LIKELY ACTIVE |
| IEInland Empire Paper | Spokane | — | ◐ LIKELY ACTIVE |
| RPRrd Packaging Solutions | Kent | — | ◐ LIKELY ACTIVE |
| SBShields Bag and Printing CO | Yakima | — | ◐ LIKELY ACTIVE |
| TLTrojan Lithograph CORP Sw 27th St | Renton | — | ◐ LIKELY ACTIVE |
| ACAbitibi Consolidated Site | Steilacoom | — | ◇ UNVERIFIED |
| BCBemis Company INC | Vancouver | — | ◇ UNVERIFIED |
Boise Cascade Site | Vancouver | — | ◇ UNVERIFIED |
| GPGeorgia Pacific West Bellingham | Bellingham | — | ◇ UNVERIFIED |
| GPGraphic Packaging International INC | Renton | — | ◇ UNVERIFIED |
| GHGrays Harbor Paper LP | Hoquiam | — | ◇ UNVERIFIED |
| IPInternational Paper Bellevue | Bellevue | — | ◇ UNVERIFIED |
| IPInternational Paper Company | Moses Lake | — | ◇ UNVERIFIED |
| JDJl Darling CORP | Tacoma | — | ◇ UNVERIFIED |
| KCKimberly Clark Worldwide | Everett | — | ◇ UNVERIFIED |
| PLPhenopath Laboratories | Seattle | — | ◇ UNVERIFIED |