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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
Wyatt Resources INCFulshearTX20–99 ACTIVE
Wyman-gordon CompanyNorth GraftonMA100–499 ACTIVE
Wytech Industries, INC.Rahway CityNJ100–499 ACTIVE
Yamaha Marine Precision Propellers INC. GreenfieldGreenfieldIN100–499 ACTIVE
Yankee Casting Co, INCEnfieldCT20–99 ACTIVE
Aaa Air SupportGardenaCA1–19 ACTIVE
Aim Products LLCCranstonRI— ACTIVE
Aimtek, INC.AuburnMA20–99 ACTIVE
Aisin Automotive Castings LLCLondonKY— ACTIVE
Alcoa USA CORPMassenaNY100–499 ACTIVE
Alexandria Extrusion Midamerica LLCIndianapolisIN— ACTIVE
Alleima USA LLCSouth Abington TownshipPA500+ ACTIVE
Allied Metals COJohnson CityTN— ACTIVE
Alotech Limited, LLCBrooklynOH— ACTIVE
American Spiralweld PipeColumbiaSC100–499 ACTIVE
American Steel and Aluminum LLCAuburnMA— ACTIVE
Ameridrives International LLCEriePA100–499 ACTIVE
Amphenol Cable and Interconnect Technologies, INCSaint AugustineFL— ACTIVE
Angeles Precision Engineering, INC.OntarioCA— ACTIVE
Applied Ceramics, INC.FremontCA— ACTIVE
Aquashield, INCHixsonTN1–19 ACTIVE
Arconic CorporationPittsburghPA500+ ACTIVE
Artazn LLCGreenevilleTN100–499 ACTIVE
Astroseal Products Mfg. CorporationChesterCT— ACTIVE
Atrenne Computing Solutions, LLCBrocktonMA— ACTIVE
Avion Alloys INC.Boca RatonFL— ACTIVE
Aviva Metals, INC.LorainOH100–499 ACTIVE
Bastech INCDaytonOH1–19 ACTIVE
Billco CORP.AddisonIL— ACTIVE
Bishtec LLCBlackfootID— ACTIVE
Black Bay Ventures Vi, LLCPalmerMA20–99 ACTIVE
Blue Bayou Brass, INCHoustonTX1–19 ACTIVE
Blue Whale Materials LLCWashingtonDC— ACTIVE
Bocar Us, INCTannerAL100–499 ACTIVE
Bridon-american CORPOakland CityIN— ACTIVE
Brownell Boat Stands INCDartmouthMA— ACTIVE
Bruker Ost LLCCarteretNJ100–499 ACTIVE
Cain Tubular Products, INCSt CharlesIL— ACTIVE
Cain Tubular Products, INCSaint CharlesIL— ACTIVE
Calidad, INC.OntarioCA— ACTIVE
Cambridge InternationalCambridgeMD100–499 ACTIVE
Cast Parts, INC.City of IndustryCA— ACTIVE
Cast Products, INC.AthensAL100–499 ACTIVE
Centerline Precision Tube Bending INCDublinCA— ACTIVE
Century International ArmsWest Palm BeachFL— ACTIVE
Chicago Metal Rolled Products CompanyChicagoIL20–99 ACTIVE
Cleveland-cliffs Plate LLCCoatesvillePA500+ ACTIVE
Cmc Steel New JerseySayrevilleNJ100–499 ACTIVE
Cmp Global INCSuffolkVA20–99 ACTIVE
Combined Metals Company, LLCElginIL20–99 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.