| Business | Phone |
| Engineered Representation Inc 7717 W Imperial Dr, Franklin 53132 | (414) 529-5500 |
| Tewco 9701 S 58th St, Franklin 53132 | (414) 423-8080 |
| Tdaka Products Llc Franklin 53132 | (414) 427-0294 |
| Richmar Electronics Corp 3909 W Lakeview Dr, Franklin 53132 | (414) 423-5353 |