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Primary Metal Manufacturing in Ohio

NAICS 331 · OH

The register lists 697 facilities in Ohio. According to the Bureau of Labor Statistics, there were 456 establishments in the Primary Metal Manufacturing industry in Ohio in 2025. CLEVELAND-CLIFFS STEEL CORP, located in Middletown, employed 2,296 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and product lines

Biggest counties

Cuyahoga92Trumbull38Summit37Stark35Hamilton30Mahoning25Lake21Lorain21

Biggest cities

Plants in Ohio520 FACILITIES

Listing 520 of 697: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityEmployeesStatus
St Marys FoundrySaint Marys100–499 LIKELY ACTIVE
45qua Emery Cutter & Foundry Co.,inc. Dba Piqua EmPiqua20–99 LIKELY ACTIVE
Alumalloy Metalcasting CO.Avon Lake1–19 LIKELY ACTIVE
American Highway Products, LTDBolivar1–19 LIKELY ACTIVE
Barclay Machine, INC.Salem1–19 LIKELY ACTIVE
Castings USA INCNew Philadelphia1–19 LIKELY ACTIVE
G a Avril CO - White Metal Prods DivCincinnati1–19 LIKELY ACTIVE
Jsw Steel USA Ohio, INC.Mingo Junction100–499 LIKELY ACTIVE
Kuhn Fabricating Inc.Lorain1–19 LIKELY ACTIVE
Matalco USA LLCCanton100–499 LIKELY ACTIVE
Mcm Precision Castings INCWeston1–19 LIKELY ACTIVE
Middletown Tube Works INCMiddletown20–99 LIKELY ACTIVE
Phillips Tube GroupShelby100–499 LIKELY ACTIVE
Reebar Die Casting INC.Waterville1–19 LIKELY ACTIVE
Unity Tube, Inc.East Palestine20–99 LIKELY ACTIVE
Youngstown Specialty Metls INCYoungstown1–19 LIKELY ACTIVE
A & B Foundry & MachiningFranklin20–99 UNVERIFIED
Aluminum Wheel Technologies INCRavenna— UNVERIFIED
American Steel Fabricators, LLCSpringfield1–19 UNVERIFIED
Arcelormittal WarrenWarren— UNVERIFIED
Avalon Precision MetalsmithsCleveland— UNVERIFIED
Barberton Steel Industries, INC.Barberton20–99 UNVERIFIED
Cast Metals INCDeshler1–19 UNVERIFIED
Cast Metals TechnologyUnion20–99 UNVERIFIED
Hamilton Brass & Aluminum Castings COHamilton1–19 UNVERIFIED
I H Schlezinger INCColumbus20–99 UNVERIFIED
Mid-ohio Tubing LLCButler— UNVERIFIED
Opw Engineered SystemsLebanon— UNVERIFIED
Seneca Railroad & MiningBellevue1–19 UNVERIFIED
Sewah StudiosMarietta20–99 UNVERIFIED
Trumbull Foundry & AlloyNiles— UNVERIFIED
Wm. Powell Valve CO.Cincinnati20–99 UNVERIFIED
Xenia FoundryXenia20–99 UNVERIFIED
Allegheny Rail Products/ Lb Foster CONiles— LIKELY ACTIVE
Amg Vanadium LLCZanesville— LIKELY ACTIVE
Amsted RailGroveport100–499 LIKELY ACTIVE
Byer SteelCincinnati20–99 LIKELY ACTIVE
Cleveland-Cliffs Steel Research & Innovation CenterMiddletown20–99 LIKELY ACTIVE
Col-Pump CompanyColumbiana20–99 LIKELY ACTIVE
Coopermill Bronzeworks LTDZanesville1–19 LIKELY ACTIVE
Core-tech Enterprises, LLCMentor20–99 LIKELY ACTIVE
Core-Tech, Inc.Mentor20–99 LIKELY ACTIVE
Custom HoistsAshland20–99 LIKELY ACTIVE
Epix Tube Company, Inc.Dayton100–499 LIKELY ACTIVE
Fort Recovery Industries IncFt. Recovery100–499 LIKELY ACTIVE
General Aluminum LLC, RavennaRavenna100–499 LIKELY ACTIVE
General Die Casters, Inc. PeninsulaPeninsula1–19 LIKELY ACTIVE
Geneva Liberty SteelYoungstown20–99 LIKELY ACTIVE
Guardian Express INCWapakoneta— LIKELY ACTIVE
Haydon Corporation- OHStow20–99 LIKELY ACTIVE

Search all 697 facilities

All primary metal manufacturing nationwide · All manufacturing in Ohio