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 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.
| Facility | City | Employees | Status |
|---|---|---|---|
| CGAR Stainless, LLC | Eastlake | 20–99 | UNVERIFIED |
| Cleveland Engineered Materials | Bedford Heights | 1–19 | UNVERIFIED |
| Founders Service & Manufacturing, INC. | Deerfield | 20–99 | UNVERIFIED |
| Harvey Brothers, INC. | Cincinnati | 1–19 | UNVERIFIED |
| Jj Seville LLC | Seville | 20–99 | UNVERIFIED |
| Klb Industries, INC. | Bellefontaine | 1–19 | UNVERIFIED |
| Kylcase Metals, LLC | Canton | 1–19 | UNVERIFIED |
| Micron Manufacturing Inc. | LaGrange | 20–99 | UNVERIFIED |
| Model Pattern & Foundry CO | Cincinnati | 1–19 | UNVERIFIED |
| Mts Enterprises Llc | Springfield | 1–19 | UNVERIFIED |
| New Age Design & Tool, Inc. | Lagrange | 1–19 | UNVERIFIED |
| North Central Processing | Cleveland | 1–19 | UNVERIFIED |
| Ohio Valley Stamping-assemblies INC. | Mansfield | 20–99 | UNVERIFIED |
| Paul Wilke & Son, INC. | Cincinnati | 1–19 | UNVERIFIED |
| Post Products | Kent | 1–19 | UNVERIFIED |
| Prototype Fabricators Co. | Cleveland | 1–19 | UNVERIFIED |
| Ross Casting & Innovation, LLC | Sidney | — | UNVERIFIED |
| Seyekcub Aluminum | Uhrichsville | 20–99 | UNVERIFIED |
| Therm-o-link Dba Vulkor INC. | Warren | 20–99 | UNVERIFIED |
| Utm Investments INC. | Lakeview | 20–99 | UNVERIFIED |
All primary metal manufacturing nationwide · All manufacturing in Ohio