- Blast furnaces and steel mills (4)
- Steel wire and related products (2)
- Gray and ductile iron foundries (1)
- Secondary nonferrous metals (1)
- Aluminum die-castings (1)
- Aluminum foundries (2)
- Copper foundries (1)
- Primary metal products (1)
The following companies are listed in the PowerProfiles business database for the Dubuque, Iowa region and for the category Primary Metal Industries.