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Primary Metal Manufacturing

8,651 FACILITIESAll Census product lines →

NAICS 331

Map, cities and product lines
Map of United States manufacturing facilities

Product lines reported here

These are counts by industry: the Economic Census records what establishments in primary metal manufacturing reported producing, and never names a plant.

Plants in this industry8,651 FACILITIES

FacilityCityStateEmployeesStatus
Solcoa Industries, INC.San FranciscoCA— ACTIVE
Solonian Resources, LLCMishawakaIN— ACTIVE
Sol's Pipe & Steel, LLCMonroeLA— ACTIVE
Sophisticated Alloys INCButlerPA— ACTIVE
Southern Copper & Supply Co, INCPelhamAL— ACTIVE
Sovereign Materials, INC.AustinTX— ACTIVE
Space Alloys USA LLCWindfallIN— ACTIVE
S. P. Reed INC.EncinitasCA— ACTIVE
Steele Solutions INCSouth MilwaukeeWI— ACTIVE
Steel Ops LTD.Fort CollinsCO— ACTIVE
Steel Services & Supplies INCToa BajaPR— ACTIVE
Sts Metals, INC.IrwindaleCA— ACTIVE
Surepure Chemetals L.l.c.Florham ParkNJ— ACTIVE
Sycast, INC.HartfordCT— ACTIVE
Sync Intelligence INC.New YorkNY— ACTIVE
Target Metal Blanking INCNew BostonMI— ACTIVE
Techspec, INC.DerryPA— ACTIVE
Texas Hauling Atx, LLCAustinTX— ACTIVE
Thalon Materials, INC.HoustonTX— ACTIVE
The Loren Group, LTD.WilmingtonDE— ACTIVE
The National Meat CODelray BeachFL— ACTIVE
The Renco Group, INC.New YorkNY— ACTIVE
The Worthington Steel CompanyColumbusOH— ACTIVE
The Zinc Guy INCDavieFL— ACTIVE
Thompson Aluminum Casting CO.ClevelandOH— ACTIVE
Thunder Bay Capital, LLCDade CityFL— ACTIVE
Titanium Engineers, INC.Sugar LandTX— ACTIVE
Tpl LLCWest BloomfieldMI— ACTIVE
Tri Star Metals, LLCAuroraIL— ACTIVE
Ulbrich Stainless Steels & Special Metals, INC.North HavenCT— ACTIVE
United Canvas and Sling; DBA UCS INC.LincolntonNC20–99 ACTIVE
United Rare Earths, INCJacksboroTN— ACTIVE
United States Antimony CorporationThompson FallsMT— ACTIVE
United States Steel CorporationPittsburghPA— ACTIVE
U.s. Aluminum Company, LLCOklahoma CityOK— ACTIVE
US Forged Rings INC.GreenwichCT— ACTIVE
Vac Magnetics, LLCElizabethtownKY— ACTIVE
Velocity USA LLCClemsonSC— ACTIVE
Verde Bronzeworks, LLCCornvilleAZ— ACTIVE
Veritas Alloys & Metals, LLCRochesterPA— ACTIVE
Versatile Automation Technology CORP.SolonOH— ACTIVE
Volmetals LLCMiamiFL— ACTIVE
Vulcan Metals CorporationTacomaWA— ACTIVE
Warner Bros, Foundry CO.RosevilleMI— ACTIVE
Webco Industries, INC.Sand SpringsOK— ACTIVE
Wer CorporationSinking SpringPA— ACTIVE
Western Magnesium CorporationLas VegasNV— ACTIVE
Westwin Elements, INC.Oklahoma CityOK— ACTIVE
Whitley Steel Building Supply, LLCKilleenTX— ACTIVE
Wickcraft Company, INC.MadisonWI— ACTIVE

Search all 8,651 facilities

Common questions

How many primary metal manufacturing facilities are in the United States?

As of AUG 2026, FactoryRegistry lists 8,651 primary metal manufacturing facilities (NAICS 331) across 53 states, compiled from EPA, OSHA and Census records.

Which state has the most primary metal manufacturing facilities?

California, with 877 facilities listed.

How many primary metal manufacturing facilities are still operating?

3,820 of the 8,651 listed carry a recent operating signal in federal data — the register's Active or Likely active status. The rest are listed from their filings alone, which is a gap in the federal record rather than evidence that a plant has closed.