Primary Metal Manufacturing in Illinois
NAICS 331 · IL
This register lists 550 facilities in Illinois. The Bureau of Labor Statistics counted 336 establishments in the Primary Metal Manufacturing industry in Illinois in 2025. Mapleton Foundry in Mapleton employed 1,186 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Illinois5 FACILITIES
Listing 5 of 8: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Ims-amco Engineered Products LLC | Des Plaines | — | LIKELY ACTIVE |
| Mid-States Recycling & Refining | Des Plaines | 20–99 | LIKELY ACTIVE |
| Dulin Metals CO | Des Plaines | — | UNVERIFIED |
| Dulin Metals CO | Des Plaines | — | UNVERIFIED |
| Interstate Steel CO | Des Plaines | — | UNVERIFIED |
All primary metal manufacturing nationwide · All manufacturing in Illinois