Primary Metal Manufacturing in Washington
NAICS 331 · WA
This register lists 145 facilities in Washington. The Bureau of Labor Statistics counted 96 establishments in Washington. Kaiser Aluminum - Trentwood, located in Spokane Valley, employed 899 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Washington4 FACILITIES
| Facility | City | Employees | Status |
|---|---|---|---|
| Steelscape INC | Kalama | 100–499 | ACTIVE |
| Skyline Steel LLC | Longview | — | LIKELY ACTIVE |
| Roemer Electric Steel Foundry | Longview | 1–19 | UNVERIFIED |
| Millennium Bulk Terminals Site | Longview | — | LIKELY ACTIVE |
All primary metal manufacturing nationwide · All manufacturing in Washington