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Primary Metal Manufacturing

8,881 FACILITIESAll Census product lines →

NAICS 331

The Primary Metal Manufacturing industry, as defined by NAICS 331, is measured by the Bureau of Labor Statistics to have 6096 establishments in the United States as of 2025. This register lists 8881 facilities across the country. Cleveland-Cliffs Burns Harbor LLC, located in Burns Harbor, employed 4003 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

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 industry6,017 FACILITIES

Listing 6,017 of 8,881: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityStateEmployeesStatus
Carter Alloys CompanyBryn MawrPA— ACTIVE
Cavalier Steel & Fence CODarbyPA— ACTIVE
Cb Marcellus Metalcasters INCPlainwellMI— ACTIVE
Ccm Mfg LLCVanderbiltMI— ACTIVE
Century Tubes, INC.San DiegoCA— ACTIVE
Choice Steel COAlbuquerqueNM— ACTIVE
Clayens Us, LLCLovelandCO— ACTIVE
Cosmic Reliable Services, LLCLancasterCA— ACTIVE
Critical Minerals Suppliers of America LLCMiamiFL— ACTIVE
Dairyland Fence Co., INC.Iron RiverWI— ACTIVE
Diez Group LLCTrentonMI— ACTIVE
Diversified Technology Sales, INC.MolinoFL— ACTIVE
Echo Elements, INC.RenoNV— ACTIVE
El Metals LLCRandolphNJ— ACTIVE
Engineered Manufacturing & Equipment CompanyMarysvilleOH— ACTIVE
Evolution Metals and Mining Technologies, LLCHaverfordPA— ACTIVE
Fabri INCAshlandMA— ACTIVE
Factory Supply Handling, LLCCharlotteNC— ACTIVE
Falcon Copper Works CORP.TimnathCO— ACTIVE
Fast Metals, INC.StamfordCT— ACTIVE
Foundry Lab Usa, INCAustinTX— ACTIVE
Gamma Alloys INCSanta ClaritaCA— ACTIVE
Gindre Copper INC.GreenwoodSC— ACTIVE
Global Drilling Suppliers, INC.CincinnatiOH— ACTIVE
Greybeard Steel LLCPost FallsID— ACTIVE
Harbor Fab LLCFort WorthTX— ACTIVE
Harbor Island Supply CorporationSeattleWA— ACTIVE
Haynes International, INC.WindsorCT— ACTIVE
Haynes International, INC.HendersonvilleNC— ACTIVE
Hertha Metals, INC.ConroeTX— ACTIVE
Holtec InternationalJupiterFL— ACTIVE
Howmet CorporationWhitehallMI— ACTIVE
Ibc US Holdings INCFranklinIN— ACTIVE
Ice Station Zebra, LLCCanonsburgPA— ACTIVE
Imperial Machine & Tool COColumbiaNJ— ACTIVE
Infrastructure Rail Systems LLCKennewickWA— ACTIVE
Inland Machine Company INC.Rancho CucamongaCA— ACTIVE
Innovative Powders LLCHeber CityUT— ACTIVE
Intellisteel Group LLCGrovelandFL1–19 ACTIVE
J.d. Miller & Sons, LLCElk MoundWI— ACTIVE
Judson A. Smith CompanyBoyertwonPA20–99 ACTIVE
Kaiser Aluminum Fabricated Products, LLCJacksonTN— ACTIVE
Keystone Bolt & Nut CompanyClevelandOH— ACTIVE
Kn Manufacturing INCLufkinTX— ACTIVE
Komax Systems, INC.Huntington BeachCA— ACTIVE
Lapham Hickey Steel CORPBedford ParkIL— ACTIVE
Leapfast Manufacturing INC.YoungstownOH— ACTIVE
Lifezone Recycling US LLCFairviewPA— ACTIVE
Lodestar Quality LLCLafayetteIN— ACTIVE
Mayco Manufacturing LLC dba Mayco IndustriesGranite CityIL20–99 ACTIVE

Search all 8,881 facilities

Common questions

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

As of NOV 2026, FactoryRegistry lists 8,881 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 901 facilities listed.

How many primary metal manufacturing facilities are still operating?

4,741 of the 8,881 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.