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Primary Metal Manufacturing in Washington

NAICS 331 · WA

Washington is home to Primary Metal Manufacturing, an industry with a location quotient of 0.57 according to the Bureau of Labor Statistics in 2024. Listed in the register are 140 facilities in 49 cities across Washington. Kaiser Aluminum - Trentwood in Spokane Valley had 899 employees in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and product lines

Biggest counties

King36Spokane20Pierce15Snohomish15Clark14Benton7Chelan4Cowlitz4

Biggest cities

Plants in Washington36 FACILITIES

FacilityCityEmployeesStatus
Harbor Island Supply CorporationSeattle— ACTIVE
North Star Casteel ProductsSeattle20–99 LIKELY ACTIVE
North Star Casteel ProductsSeattle— LIKELY ACTIVE
Nucor Steel Seattle INCSeattle— LIKELY ACTIVE
Seacast SeattleSeattle— LIKELY ACTIVE
US Gypsum Corporation AuburnAuburn20–99 LIKELY ACTIVE
Davis Wire CORPKent— LIKELY ACTIVE
Industrial Container Services LLCSeattle— LIKELY ACTIVE
Olympic Foundry INCSeattle— LIKELY ACTIVE
Alaskan Copper & Brass CO CtlSeattle— UNVERIFIED
Ge Aircraft EnginesSeattle— UNVERIFIED
Jorgensen Forge CORPTukwila— UNVERIFIED
Lower Duwamish WaterwaySeattle— UNVERIFIED
Nonferrous Metals INCSeattle— UNVERIFIED
Northwest CastingsSeattle— UNVERIFIED
Pacific Car and Foundry CORenton— UNVERIFIED
Pentz Design Pattern and Foundry INCDuvall— UNVERIFIED
Salmon Bay Steel CompanyKent— UNVERIFIED
Western Steel Casting COSeattle— UNVERIFIED
Weyerhaeuser Technology CenterFederal Way— UNVERIFIED
Levy Environmental Services Company dba SeaTac Steel Mill and Recycling ServicesSeattle1–19 LIKELY ACTIVE
MPG US KentKent20–99 LIKELY ACTIVE
Nucor Steel Seattle INC.Seattle (SEA)100–499 LIKELY ACTIVE
Ace Iron WorksSeattle— UNVERIFIED
Ballard Pattern and Brass FoundrySeattle— UNVERIFIED
Castle MetalsKent— UNVERIFIED
Hot Iron Fabrication LLCFederal Way— UNVERIFIED
Meltec a Div of Young CORPSeattle— UNVERIFIED
MK Industries, LLCSeattle— UNVERIFIED
Namco Precision CorpSeattle— UNVERIFIED
S & S Custom Iron Works LlcRedmond— UNVERIFIED
Viking ChainSeattle— UNVERIFIED
Viking ChainSeattle— UNVERIFIED
Wa317935208 - Morel Industries INCSeattle— UNVERIFIED
Wa317936212 - Parrotts B&b Welding INCEnumclaw— UNVERIFIED
Wa317940854 - Nucor CorporationSeattle— UNVERIFIED

Search all 140 facilities

All primary metal manufacturing nationwide · All manufacturing in Washington