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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
Ampco Metal INCSturtevantWI1–19 ACTIVE
Amsted RailKansas CityKS100–499 ACTIVE
Amt IncorporatedSharon SpringsNY20–99 ACTIVE
Anchor-harvey Components LLCFreeportIL1–19 ACTIVE
Anderson Steel Supply INCGreat FallsMT20–99 ACTIVE
Andrex INCHackettstownNJ1–19 ACTIVE
Arc Colorado, INCLongmontCO100–499 ACTIVE
Arcelormittal Tubular Products USA LLC (0370020133)ShelbyOH500+ ACTIVE
Arcos Industries LLCMount CarmelPA20–99 ACTIVE
Ardagh Metal Packaging USA CORPOlive BranchMS100–499 ACTIVE
Aristo-cast, INC.AlmontMI20–99 ACTIVE
Ark Technologies, INC.Saint CharlesIL20–99 ACTIVE
Armstrong Mold CorporationEast SyracuseNY20–99 ACTIVE
Arntzen CorporationSharonWI20–99 ACTIVE
Asahi Refining USA INCSalt Lake CityUT— ACTIVE
Asama Coldwater Manufacturing, INC.ColdwaterMI100–499 ACTIVE
Ashland Foundry & Machine Works, LLCAshlandPA100–499 ACTIVE
Ashley Machine & Tool COWyomingPA20–99 ACTIVE
Astech INCVassarMI20–99 ACTIVE
Astro Industries INCDaytonOH— ACTIVE
Atalco Gramercy LLCGramercyLA— ACTIVE
Atlantic Casting & Engineering CORPCliftonNJ100–499 ACTIVE
Atlas Foundry Company INCMarionIN20–99 ACTIVE
A. T. Wall COWarwickRI20–99 ACTIVE
Audubon Metals LLCHendersonKY100–499 ACTIVE
Auris Noble LLCAkronOH1–19 ACTIVE
Aurora Casting & Engineering, INC.Santa PaulaCA20–99 ACTIVE
Aurora Metals Division LLCMontgomeryIL20–99 ACTIVE
Baikowski International CORPCharlotteNC1–19 ACTIVE
Barron Industries INCOxfordMI20–99 ACTIVE
Basf CORP - Suite BSenecaSC100–499 ACTIVE
Bay Cast Technologies, INC.Bay CityMI20–99 ACTIVE
Bay Shore Steel Works LLCCharlevoixMI20–99 ACTIVE
Bci Solutions, INCBremenIN100–499 ACTIVE
Bear Valley Precision Casting, LLCParowanUT1–19 ACTIVE
Becker Metal Works INCSaint ClairMI1–19 ACTIVE
Belmont Metals, INC.BrooklynNY20–99 ACTIVE
Beneke Holdings LLCLouisvilleKY20–99 ACTIVE
Benton Foundry INCBentonPA100–499 ACTIVE
Berntsen Brass & Aluminum Foundry INCMadisonWI100–499 ACTIVE
Bescast, INC.WilloughbyOH100–499 ACTIVE
Betz IndustriesGrand RapidsMI100–499 ACTIVE
Bilstein Cold Rolled SteelBowling GreenKY100–499 ACTIVE
Bison Metals Technologies LLCShawneeOK100–499 ACTIVE
Boose Aluminum Foundry CO INCStevensPA20–99 ACTIVE
Borusan Berg PipePanama CityFL100–499 ACTIVE
Boston Electrometallurgical CORPWoburnMA100–499 ACTIVE
Bradford BuiltWashingtonKS20–99 ACTIVE
Bridesburg Foundry CompanyWhitehallPA20–99 ACTIVE
Bridge City Steel, LLCPortlandOR20–99 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.