| Business | Phone |
| Winn Tool & Impression Inc 1308 Barnes St, Rockford 61104 | (815) 964-7159 |
| Rockford Forging Die & Tool Co 1845 18th Ave, Rockford 61104 | (815) 397-3790 |
| Midwest Forging Die & Tool Inc 1531 Preston St, Rockford 61102 | (815) 963-6303 |
| Mid-States Forging Die & Tool 2844 Eastrock Dr, Rockford 61109 | (815) 226-2313 |