| Business | Phone |
| Central Coil Processing 501 George Nelson Dr, Portage 46368 | (219) 787-5000 |
| Charcas Innovations Inc 5357 Evergreen Ave, Portage 46368 | (219) 763-2038 |
| Feralloy Corp 600 George Nelson Dr, Portage 46368 | (219) 787-8773 |
| Feralloy Corp 6755 Waterway Dr, Portage 46368 | (219) 787-9698 |
| Indiana Pickling & Processing 6650 Nautical Dr, Portage 46368 | (219) 787-8889 |