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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
Wirco, INC.AvillaIN100–499 ACTIVE
Wireco Worldgroup INC.LeawoodKS— ACTIVE
Wire Mesh Sales, LLCJacksonvilleFL20–99 ACTIVE
Wolverine Tube, INCDecaturAL100–499 ACTIVE
Worthington Steel, INC.WorthingtonOH500+ ACTIVE
Yacht Boarding Systems, INC.Apollo BeachFL— ACTIVE
426-deborah-rose-durr-supplies L.l.cSouthfieldMI— ACTIVE
9th Degree Metals LLCPortlandOR— ACTIVE
Aclara Metals INC.BethesdaMD— ACTIVE
Adamco INC.HoustonTX— ACTIVE
Albaksan Advanced Copper Alloys LLCSugar GroveIL— ACTIVE
Albright Steel & Wire COOklahoma CityOK— ACTIVE
Alcast Mfg, INC.CommerceCA— ACTIVE
Al Cu Met, INC.LondonderryNH— ACTIVE
Alkemba Holdings, LLCKatyTX— ACTIVE
Allfirst L.l.c.SuffolkVA— ACTIVE
Ambor Structures, INC.VeniceFL— ACTIVE
American Hydroformers, INC.Fort WayneIN— ACTIVE
American Strategic Metals CORP.WabashIN— ACTIVE
American Veterans Steel LLCSouthwest RanchesFL— ACTIVE
Americas Rare Earth CORPPittstonPA— ACTIVE
Amg Critical Materials CORP.WaynePA— ACTIVE
Anspanner, LLCHealdsburgCA— ACTIVE
Antimony Refining Company, LLCHoustonTX— ACTIVE
Apmfg Fabricators INCSan MarcosCA— ACTIVE
Artesia Metals INCArtesiaNM— ACTIVE
Associated Fastening Products, INC.ItascaIL— ACTIVE
At Ease Sustainment LLCPataskalaOH— ACTIVE
Ati Specialty Alloys & Components, LLCPittsburghPA— ACTIVE
Ati Specialty Materials LLCPittsburghPA— ACTIVE
Atlas Bronze Casting LLCSalt Lake CityUT— ACTIVE
Barry a Dorfman & COLos AngelesCA— ACTIVE
Bestwill CorporationIrvineCA— ACTIVE
Black Hills Metal Fabricators, LLCRapid CitySD— ACTIVE
Blackhorse Industrial Solutions LLCBeech IslandSC— ACTIVE
Blueore, INC.San FranciscoCA— ACTIVE
Blue Star Military Alloys and Supplies INCBoca RatonFL— ACTIVE
Bolton Metal Products CO. INC.State CollegePA— ACTIVE
Bomar Tactical Training Group LLCChandlerAZ— ACTIVE
Boyce Iron and Steel IncorporatedNiederwaldTX— ACTIVE
Briggs Steel, INCRigbyID— ACTIVE
Bright Horizon Metals, INC.SumnerWA— ACTIVE
Buffalo Armory Group, LLCBuffaloNY— ACTIVE
Caldwell Casting Co., INC.CambridgeMD— ACTIVE
Cal-sierra Pipe, LLCStocktonCA— ACTIVE
Camden Copper Holdings LLCCamdenSC20–99 ACTIVE
Cannon-muskegon CORPNorton ShoresMI— ACTIVE
Carley Foundry, INCMinneapolisMN— ACTIVE
Carpenter Brothers, INC.MequonWI— ACTIVE
Carpenter Technology CorporationPhiladelphiaPA— 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.