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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
Steel Edge, INCLas VegasNV— ACTIVE
Steel Forgings, INC.ShreveportLA20–99 ACTIVE
Steelscape INCKalamaWA100–499 ACTIVE
Stephens Pipe & Steel LLCRussell SpringsKY100–499 ACTIVE
Sterling Metal Works LLCSterling HeightsMI— ACTIVE
St Paul Brass Foundry COSaint PaulMN— ACTIVE
Strohecker INCEast PalestineOH20–99 ACTIVE
Stupp Bridge CompanyBowling GreenKY100–499 ACTIVE
Stupp Bros., INC.Saint LouisMO20–99 ACTIVE
Sulzer Metco (us) TroyTroyMI20–99 ACTIVE
Sumiden Wire Products CORPDicksonTN20–99 ACTIVE
Supercon, IncorporatedShrewsburyMA20–99 ACTIVE
Superior Brass & Aluminum Casting COEast LansingMI20–99 ACTIVE
Superior Extrusion, INCGwinnMI100–499 ACTIVE
Superior Forge & Steel CORPLimaOH— ACTIVE
Superior Tube Company, INC.CollegevillePA100–499 ACTIVE
Tampa Brass and Aluminum Corporation.TampaFL— ACTIVE
Taubensee Steel and Wire COWheelingIL100–499 ACTIVE
Taurus Fabrication, INCGrass ValleyCA— ACTIVE
Taylor Forge Engineered Systems, INC.PaolaKS100–499 ACTIVE
Team Industries BagleyBagleyMN100–499 ACTIVE
Techni-cast LLCSouth GateCA20–99 ACTIVE
Tech Tube, INC.King of PrussiaPA100–499 ACTIVE
Tecomet INC.WilmingtonMA100–499 ACTIVE
Telcon LLCStreetsboroOH20–99 ACTIVE
Temperform LLCNoviMI20–99 ACTIVE
Tennessee Aluminum Processors INCMount PleasantTN20–99 ACTIVE
Tennessee Aluminum Processors INCGadsdenAL20–99 ACTIVE
The Carondelet Foundry CorporationPevelyMO— ACTIVE
The Electric Materials Co/north EastNorth EastPA100–499 ACTIVE
The Harrison Steel Castings COAtticaIN100–499 ACTIVE
The Indium Corporation of AmericaRomeNY— ACTIVE
The Quality Castings CompanyOrrvilleOH100–499 ACTIVE
Thermalex, INCMontgomeryAL100–499 ACTIVE
Ti Squared Technologies, INC.AlbanyOR20–99 ACTIVE
Titan International, INC.PottstownPA20–99 ACTIVE
Titan Wheel Corporation of IllinoisQuincyIL500+ ACTIVE
Toyota Motor Mfg Missouri INCTroyMO500+ ACTIVE
Tpm Acquisition Holdings LLCSugar LandTX20–99 ACTIVE
Trace Die Cast INCBowling GreenKY100–499 ACTIVE
Tricab INCWorcesterMA20–99 ACTIVE
Trimet Industries INCTraverse CityMI1–19 ACTIVE
True Temper Sports, INC.AmoryMS100–499 ACTIVE
Tst INCFontanaCA100–499 ACTIVE
Tyler UnionAnnistonAL100–499 ACTIVE
Ulbrich Shaped Wire, INC.North HavenCT20–99 ACTIVE
Ultraviolet Devices IncorporatedValenciaCA20–99 ACTIVE
Umicore Optical Materials USA INC.QuapawOK20–99 ACTIVE
Unarco Material Handling, LLCSpringfieldTN100–499 ACTIVE
United Metal Fabricators, INC.JohnstownPA— 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.