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
Products made in Illinois8 PRODUCTS
| Product | Source | Facilities |
|---|---|---|
| Anchor Bolts | Company website | 1 |
| Copper Alloys | Company website | 1 |
| Die Casting | Company website | 1 |
| Extension Springs | Company website | 1 |
| Robotics | Company website | 1 |
| Stamping | Company website | 1 |
| Torsion Springs | Company website | 1 |
| Wire Forms | Company website | 1 |
All primary metal manufacturing nationwide · All manufacturing in Illinois