Primary Metal Manufacturing in Indiana
NAICS 331 · IN
The register lists 449 facilities in Indiana. According to the Bureau of Labor Statistics, 247 establishments in Indiana operated in the Primary Metal Manufacturing industry in 2025. Cleveland-Cliffs Burns Harbor LLC, located in Burns Harbor, employed 4,003 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Indiana13 FACILITIES
Listing 13 of 16: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Heidtman Steel Products | Butler | 100–499 | ACTIVE |
| Metal Technologies Auburn LLC | Auburn | 100–499 | ACTIVE |
| Ball Brass & Aluminum Foundry | Auburn | 1–19 | LIKELY ACTIVE |
| Foley Pattern Company, Inc. | Auburn | 1–19 | LIKELY ACTIVE |
| Steel Dynamics Incorporated | Butler | — | LIKELY ACTIVE |
| Contech Us, LLC | Auburn | — | LIKELY ACTIVE |
| Paragon Steel-treatment Plant | Butler | 20–99 | LIKELY ACTIVE |
| Metalx | Auburn | — | LIKELY ACTIVE |
| Auburn Foundry, INC Plant 1 | Auburn | — | UNVERIFIED |
| Kimball Electronices Group Auburn | Auburn | — | UNVERIFIED |
| Levy Environmental Services Company dba Butler Mill Service | Butler | 20–99 | LIKELY ACTIVE |
| Steel Dynamics, Inc. - Flat Roll Group - Butler | Butler | 500+ | LIKELY ACTIVE |
| 106483 - Heartland Castings Incorporated | Waterloo | 20–99 | UNVERIFIED |
All primary metal manufacturing nationwide · All manufacturing in Indiana