| Business | Phone |
| Wilson Engineering 646 N Winnebago St, Rockford 61103 | (815) 962-6116 |
| Brenton Engineering Co 333 E State St, Rockford 61104 | (815) 965-6695 |
| Norco Packaging Machinery Inc 5196 27th Ave, Rockford 61109 | (815) 227-0395 |
| Hmc Products Inc 5196 27th Ave, Rockford 61109 | (815) 397-9145 |