FactoryRegistry
Claim a page

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
Precision Casting Prototypes and Engineering INCCommerce CityCO— ACTIVE
Precision Castings of Tennessee, INC.GallatinTN20–99 ACTIVE
Precision Components & Assemblies, INCSaint PetersMO1–19 ACTIVE
Precision Marshall SteelWashingtonPA20–99 ACTIVE
Precision Wire Cut, INC.WaterburyCT1–19 ACTIVE
Production Pattern and Foundry CO INCMound HouseNV20–99 ACTIVE
Prysmian Cables & Systems USA LLCDu QuoinIL100–499 ACTIVE
Prysmian Cables & Sys USA Llc/williamsport PltWilliamsportPA100–499 ACTIVE
Purity Zinc Metals, LLCClarksvilleTN20–99 ACTIVE
Pyromet LLCAstonPA20–99 ACTIVE
Quality Machine of Iowa Acquisition, INC.AudubonIA20–99 ACTIVE
Radcliff Wire INCBristolCT20–99 ACTIVE
Ramco Electric Motors, INC.GreenvilleOH100–499 ACTIVE
Rathbone Precision Metals, INCPalmerMA20–99 ACTIVE
Reading Alloys, LLCRobesoniaPA100–499 ACTIVE
Real Alloy Recycling LLCLoudonTN20–99 ACTIVE
Real Alloy Recycling LLCMorgantownKY100–499 ACTIVE
Rec Advanced Silicon Materials LLCButteMT100–499 ACTIVE
Regent Die & Tool Co, INCMilwaukeeWI20–99 ACTIVE
Reo Industries, INC.HaydenID20–99 ACTIVE
Republic ConduitLouisvilleKY100–499 ACTIVE
ResoneticsNew HartfordNY20–99 ACTIVE
Riverdale Mills CORPNorthbridgeMA20–99 ACTIVE
R. Kern Engineering & Manufacturing CORP.ChinoCA20–99 ACTIVE
Rlm Industries INCOxfordMI20–99 ACTIVE
Rmi Titanium CO (0278060189)NilesOH— ACTIVE
Rocky Mountain Steel INC.OlatheCO20–99 ACTIVE
Roscoe Moss Manufacturing COLos AngelesCA100–499 ACTIVE
Rotor Clip Company, INC.SomersetNJ— ACTIVE
Round Ground Metals, INC.Hanover ParkIL100–499 ACTIVE
Rubadue Wire CO INCLovelandCO20–99 ACTIVE
Sabin Metal CORPScottsvilleNY100–499 ACTIVE
Samtech Automotive Usa, INC.CarsonCA20–99 ACTIVE
Sanders Lead CompanyTroyAL500+ ACTIVE
Sapa Extrusions North America, INCNorth LibertyIN— ACTIVE
Sawbrook Steel Casting LLCCincinnatiOH— ACTIVE
Schoellhorn - Albrecht Machine CO INCSaint LouisMO20–99 ACTIVE
Scicast International IncorporatedBechtelsvillePA20–99 ACTIVE
Scm Industries LLCPrince GeorgeVA100–499 ACTIVE
Seacast INCTulalipWA500+ ACTIVE
Sea Shield Marine Products, INC.WalnutCA20–99 ACTIVE
Sea Wire & Cable INCMadisonAL100–499 ACTIVE
Selmet, INC.AlbanyOR500+ ACTIVE
Senior Aerospace SspBurbankCA500+ ACTIVE
Shalmet CORPOrwigsburgPA100–499 ACTIVE
Shawnee Specialties INC.Eau ClaireMI1–19 ACTIVE
Shelmet Precision Casting CO. INC.Wild RoseWI20–99 ACTIVE
Shultz Steel LLCSouth GateCA100–499 ACTIVE
Sierra Sheet and Plate, INC.CovingtonGA20–99 ACTIVE
Sigmund Cohn CORP.Mount VernonNY20–99 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.