Alleima Special Metals LLC | Kennewick | — | ● ACTIVE |
| SISteelscape INC | Kalama | 100–499 | ● ACTIVE |
Morel Industries, INC | Arlington | — | ● ACTIVE |
Seacast INC | Tulalip | — | ● ACTIVE |
Travis Pattern & Foundry, INC | Spokane | — | ● ACTIVE |
Usac Wa LLC | Entiat | 20–99 | ● ACTIVE |
| BHBright Horizon Metals, INC. | Sumner | — | ● ACTIVE |
Harbor Island Supply Corporation | Seattle | — | ● ACTIVE |
Vulcan Metals Corporation | Tacoma | — | ● ACTIVE |
| SISpokane Industries | Spokane | 1–19 | ◐ LIKELY ACTIVE |
| HEHoneywell Electronic Materials INC | Spokane | — | ◐ LIKELY ACTIVE |
| KAKaiser Aluminum and Chemical CO | Richland | — | ◐ LIKELY ACTIVE |
Kaiser Aluminum Fabricated Products | Spokane | — | ◐ LIKELY ACTIVE |
| NSNorth Star Casteel Products | Seattle | — | ◐ LIKELY ACTIVE |
| NSNorth Star Casteel Products | Seattle | 20–99 | ◐ LIKELY ACTIVE |
| NSNucor Steel Seattle INC | Seattle | — | ◐ LIKELY ACTIVE |
| RSRec Solar Grade Silicon | Moses Lake | 100–499 | ◐ LIKELY ACTIVE |
| SSSeacast Seattle | Seattle | — | ◐ LIKELY ACTIVE |
| UGUS Gypsum Corporation Auburn | Auburn | 20–99 | ◐ LIKELY ACTIVE |
| WWWalla Walla Foundry | Walla Walla | — | ◐ LIKELY ACTIVE |
| BABradken Atlas | Tacoma | — | ◐ LIKELY ACTIVE |
| DWDavis Wire CORP | Kent | — | ◐ LIKELY ACTIVE |
| RIRomac Industries | Sultan | — | ◐ LIKELY ACTIVE |
Skyline Steel LLC | Longview | — | ◐ LIKELY ACTIVE |
| IMIdeal Machine | Tacoma | — | ◇ UNVERIFIED |
| AWAlcoa Wenatchee LLC | Malaga | 1–19 | ◐ LIKELY ACTIVE |
| CRCpu River Road Generating Facility | Vancouver | — | ◐ LIKELY ACTIVE |
| ICIndustrial Container Services LLC | Seattle | — | ◐ LIKELY ACTIVE |
| IAIntalco Aluminum CORP Ferndale | Ferndale | — | ◐ LIKELY ACTIVE |
| KAKb Alloys INC | Malaga | — | ◐ LIKELY ACTIVE |
| MBMillennium Bulk Terminals Site | Longview | — | ◐ LIKELY ACTIVE |
| NANorthwest Alloys INC | Addy | — | ◐ LIKELY ACTIVE |
| OFOlympic Foundry INC | Seattle | — | ◐ LIKELY ACTIVE |
| SFSpecified Fittings INC | Bellingham | — | ◐ LIKELY ACTIVE |
| UDUS Doe Hanford Ust Site | Richland | — | ◐ LIKELY ACTIVE |
| WTWear Tek | Spokane | 20–99 | ◐ LIKELY ACTIVE |
| VIVaricast INC | Vancouver | — | ◐ LIKELY ACTIVE |
| ACAlaskan Copper & Brass CO Ctl | Seattle | — | ◇ UNVERIFIED |
| ASAmerican Silicon Technologies | Rock Island | — | ◇ UNVERIFIED |
| CMCdc Mead | Mead | — | ◇ UNVERIFIED |
| CCChemi Con Materials | Moses Lake | — | ◇ UNVERIFIED |
| CGColumbia Gorge Aluminum Site | Goldendale | — | ◇ UNVERIFIED |
| DADamar Aerosystems | Monroe | — | ◇ UNVERIFIED |
| GAGe Aircraft Engines | Seattle | — | ◇ UNVERIFIED |
| HEHydro Extrusion Portland | Vancouver | — | ◇ UNVERIFIED |
| IAImpact Alloys Foundry | Dallesport | — | ◇ UNVERIFIED |
| IHInternational Hearth Melting LLC | Richland | — | ◇ UNVERIFIED |
| JYJesse Yard Ii | Tacoma | — | ◇ UNVERIFIED |
| JFJorgensen Forge CORP | Tukwila | — | ◇ UNVERIFIED |
| LDLower Duwamish Waterway | Seattle | — | ◇ UNVERIFIED |