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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
Pmx Industries, INC.Cedar RapidsIA100–499 ACTIVE
Pompanette, LLCCharlestownNH— ACTIVE
Portsmouth Lumber CorporationPortsmouthVA— ACTIVE
Prairie View Industries, INC.FairburyNE— ACTIVE
Precision Castings of Tennessee, INC.GallatinTN20–99 ACTIVE
Precision Marshall SteelWashingtonPA20–99 ACTIVE
Prl Industries INCLebanonPA100–499 ACTIVE
Production Pattern and Foundry CO INCMound HouseNV20–99 ACTIVE
Profile Extrusion CompanyPhoenixAZ20–99 ACTIVE
Rec Advanced Silicon Materials LLCButteMT100–499 ACTIVE
R. Kern Engineering & Manufacturing CORP.ChinoCA— ACTIVE
Rlm Industries INCOxfordMI— ACTIVE
Rotor Clip Company, INC.SomersetNJ— ACTIVE
Saber Steel LLCMillingtonTN20–99 ACTIVE
Sabin Metal CORPScottsvilleNY100–499 ACTIVE
Samtech Automotive Usa, INC.CarsonCA— ACTIVE
Scicast International IncorporatedBechtelsvillePA20–99 ACTIVE
Scm Industries LLCPrince GeorgeVA100–499 ACTIVE
Scottsboro Aluminum IndustriesScottsboroAL1–19 ACTIVE
Sculpture Arts Atelier, LLCTempeAZ20–99 ACTIVE
Seacast INCTulalipWA— ACTIVE
Seah Superalloy Technologies LLCTempleTX20–99 ACTIVE
Sessa Manufacturing & WeldingVenturaCA— ACTIVE
Siemens Energy, INC.GibsontonFL100–499 ACTIVE
Sierra Alloys CompanyIrwindaleCA20–99 ACTIVE
Sierra Sheet and Plate, INC.CovingtonGA20–99 ACTIVE
Sigmund Cohn CORP.Mount VernonNY— ACTIVE
Silver City AluminumTauntonMA20–99 ACTIVE
Skyline Steel, LLCArmorelAR20–99 ACTIVE
Smith Ironworks INCLyerlyGA— ACTIVE
Solidiform, INCFort WorthTX— ACTIVE
Special Power Sources LLCAllianceOH— ACTIVE
Spuncast INCWatertownWI— ACTIVE
Ssab Alabama INCAxisAL— ACTIVE
Ssab Enterprises LLCMobileAL100–499 ACTIVE
StadcoLos AngelesCA— ACTIVE
Steeltech, LLCGrand RapidsMI— ACTIVE
Steel Ventures, INC.GreenupKY20–99 ACTIVE
Stegman Tool Co, INCTroyMI— ACTIVE
St Products LLCDuncansvillePA— ACTIVE
St. Regis Culvert, INCCharlotteMI— ACTIVE
Sunshine Minting INCHendersonNV100–499 ACTIVE
Talladega Foundry & Machine CompanyTalladegaAL20–99 ACTIVE
Te Connectivity CorporationRedwood CityCA— ACTIVE
Teledyne Defense Electronics, LLCWoodridgeIL— ACTIVE
Terves, LLCEuclidOH— ACTIVE
Texas HydraulicsTempleTX100–499 ACTIVE
The Indium Corporation of AmericaUticaNY— ACTIVE
The Landmark Group INCValley CottageNY20–99 ACTIVE
The Platt Brothers & CompanyWaterburyCT20–99 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.