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
Plants in Ohio19 FACILITIES
Listing 19 of 35: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Alliance Tubular Products LLC - Alliance Plant (1576010407) | Alliance | 100–499 | ACTIVE |
| Metallus INC. | Canton | 500+ | ACTIVE |
| Special Power Sources LLC | Alliance | — | ACTIVE |
| United Rolls INC | Canton | 100–499 | LIKELY ACTIVE |
| US Casting | Canton | 1–19 | LIKELY ACTIVE |
| American Aluminum Extrusions of Ohio LLC | Canton | 20–99 | LIKELY ACTIVE |
| Jewel Acquisition LLC - Louisville | Louisville | — | LIKELY ACTIVE |
| Republic Steel Massillon Cfb | Massillon | — | LIKELY ACTIVE |
| Alliance Casting CO. LLC (1576010014) | Alliance | 1–19 | LIKELY ACTIVE |
| Gnw Aluminum INC | Alliance | — | LIKELY ACTIVE |
| Rmi Titanium CO LLC - Canton Ingot Operations | Canton | — | LIKELY ACTIVE |
| Timkensteel CORP - Faircrest Steel Plant | Canton | — | LIKELY ACTIVE |
| Matalco USA LLC | Canton | 100–499 | LIKELY ACTIVE |
| Navarre Industries | Navarre | 100–499 | LIKELY ACTIVE |
| Omni Die Casting INC | Massillon | 20–99 | UNVERIFIED |
| Republic Steel (slag Processing Facility) | Canton | — | UNVERIFIED |
| Republic Technologies Intl - Massillon H | Massillon | — | UNVERIFIED |
| Castlebar Corporation | Canton | 1–19 | UNVERIFIED |
| Kylcase Metals, LLC | Canton | 1–19 | UNVERIFIED |
All primary metal manufacturing nationwide · All manufacturing in Ohio