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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
Hrp Metals, INC.BurgettstownPA— ACTIVE
Ibc US Holdings INCFranklinIN— ACTIVE
Ice Station Zebra, LLCCanonsburgPA— ACTIVE
Imperial Machine & Tool COColumbiaNJ— ACTIVE
Inland Machine Company INC.Rancho CucamongaCA— ACTIVE
Innovative Casting Technologies, INC.FranklinIN20–99 ACTIVE
Innovative Powders LLCHeber CityUT— ACTIVE
International Manufacturing Group, LLCClearwaterFL— ACTIVE
Invest Cast IncorporatedColumbia HeightsMN— ACTIVE
J.d. Miller & Sons, LLCElk MoundWI— ACTIVE
Judson A. Smith CompanyBoyertwonPA20–99 ACTIVE
Kaiser Aluminum Fabricated Products, LLCJacksonTN— ACTIVE
Kaiser Aluminum Investments CompanyFranklinTN— ACTIVE
Kapp Alloy & Wire, INCOil CityPA— ACTIVE
Karbon Manufacturing LLCWichitaKS— ACTIVE
Keystone Bolt & Nut CompanyClevelandOH— ACTIVE
K & H Precision Products, INC.Honeoye FallsNY— ACTIVE
Komax Systems, INC.Huntington BeachCA— ACTIVE
Krengel Equipment LLCEastlakeOH— ACTIVE
Lacy Foundries LLCBaltimoreMD— ACTIVE
Lancaster Alloys Company, INC.LancasterCA— ACTIVE
Leapfast Manufacturing INC.YoungstownOH— ACTIVE
Lifezone Recycling US LLCFairviewPA— ACTIVE
Lodestar Quality LLCLafayetteIN— ACTIVE
Luvata Waterbury, INC.WaterburyCT100–499 ACTIVE
Magnesium Innovations Group INCCarmelIN— ACTIVE
Materion Brush INCMayfield HeightsOH— ACTIVE
Mayco Manufacturing, LLCBirminghamAL— ACTIVE
Mayco Manufacturing LLC dba Mayco IndustriesGranite CityIL20–99 ACTIVE
Mccrink JosephCarlsbadCA— ACTIVE
Mcwane, INC.BirminghamAL— ACTIVE
Melt Technologies LPDel ValleTX— ACTIVE
Metal Fabrication and Art LLCLos AngelesCA— ACTIVE
Metalkraft Technologies LLCAlbanyOH— ACTIVE
Michigan Metals & Manufacturing INCSouthfieldMI— ACTIVE
Mobile Industrial Metal INCTheodoreAL— ACTIVE
Monarca Technical LLCHoustonTX— ACTIVE
Mp Mine Operations LLCMountain PassCA— ACTIVE
Mr Target LLCTempeAZ— ACTIVE
Mti Partners, LLCAlbanyOR— ACTIVE
Nav-x, LLCFort LauderdaleFL— ACTIVE
Negative Emissions Materials, INCBrooklynNY— ACTIVE
Nemo Industries, INC.BrooklynNY— ACTIVE
New England Castings, LLCStandishME— ACTIVE
New England Foundry LLCTauntonMA— ACTIVE
New England Trading Global INCPembrokeMA— ACTIVE
New Source CorporationOrlandoFL— ACTIVE
Non-ferrous Casting CompanyDaytonOH— ACTIVE
Norsk Titanium US INCPlattsburghNY— ACTIVE
North American Hoganas High Alloys LLCJohnstownPA— 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.