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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
Prism Resources, INC.HoustonTX20–99 ACTIVE
Prl Industries INCLebanonPA100–499 ACTIVE
Profile Extrusion CompanyPhoenixAZ20–99 ACTIVE
Qml INCRumfordRI1–19 ACTIVE
Quality Industries of AmericaLake CityFL20–99 ACTIVE
Reliable SilverNaugatuckCT20–99 ACTIVE
Reynolds Consumer Products LLCLake ForestIL— ACTIVE
Rhenium Alloys INCElyriaOH— ACTIVE
Rotometals, INCSan LeandroCA1–19 ACTIVE
Royal Metals Co., INC.HonoluluHI1–19 ACTIVE
Saber Steel LLCMillingtonTN20–99 ACTIVE
Sanders Lead Company IncorporatedTroyAL500+ ACTIVE
Scm Industries LLCPrince GeorgeVA100–499 ACTIVE
Scm Metal Products LLCDurhamNC100–499 ACTIVE
Scottsboro Aluminum IndustriesScottsboroAL1–19 ACTIVE
Sculpture Arts Atelier, LLCTempeAZ20–99 ACTIVE
Seah Superalloy Technologies LLCTempleTX20–99 ACTIVE
Sessa Manufacturing & WeldingVenturaCA— ACTIVE
Siemens Energy, INC.GibsontonFL100–499 ACTIVE
Sierra Alloys CompanyIrwindaleCA20–99 ACTIVE
Skinner CO INCGreenwoodSC1–19 ACTIVE
Skyline Steel, LLCArmorelAR20–99 ACTIVE
Sol's Pipe & Steel, LLCMonroeLA20–99 ACTIVE
Southeast Rigging, INCJacksonvilleFL— ACTIVE
Special Power Sources LLCAllianceOH— ACTIVE
Sp Manufacturing INCLivermoreCA— ACTIVE
Steel Ops LTD.Fort CollinsCO— ACTIVE
Steel Ventures, INC.GreenupKY20–99 ACTIVE
Stegman Tool Co, INCTroyMI— ACTIVE
Talladega Foundry & Machine CompanyTalladegaAL20–99 ACTIVE
Techspec, INC.DerryPA20–99 ACTIVE
Te Connectivity CorporationRedwood CityCA— ACTIVE
Teledyne Defense Electronics, LLCWoodridgeIL— ACTIVE
The Landmark Group INCValley CottageNY20–99 ACTIVE
The Worthington Steel CompanyColumbusOH— ACTIVE
The Zinc Guy INCDavieFL— ACTIVE
Thompson Aluminum Casting CO.ClevelandOH20–99 ACTIVE
Thor Odinson Research Extraction CORPOrlandoFL— ACTIVE
Thunder Bay Capital, LLCDade CityFL— ACTIVE
Townley Foundry & Machine Company, INCCandlerFL100–499 ACTIVE
Universal Molding Extrusion CODowneyCA500+ ACTIVE
Vac Magnetics, LLCElizabethtownKY— ACTIVE
Victor Microwave, INCWakefieldMA— ACTIVE
Wacker Polysilicon North AmericaCharlestonTN500+ ACTIVE
Warner Bros, Foundry CO.RosevilleMI1–19 ACTIVE
Webco Industries, INC.Sand SpringsOK— ACTIVE
Whitley Steel Building Supply, LLCKilleenTX1–19 ACTIVE
Whitmor Plastic Wire & Cable CORP.ValenciaCA— ACTIVE
Wickcraft Company, INC.MadisonWI1–19 ACTIVE
Windy Hill Supply CORP.KetchumID— 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.