| Business | Phone |
| Hill Screw Machine Products 12401 Hartel St, Livonia 48150 | (734) 422-1323 |
| Livonia Automatic Inc 12650 Newburgh Rd, Livonia 48150 | (734) 591-0321 |
| Lyon Manufacturing Inc 13017 Newburgh Rd, Livonia 48150 | (734) 591-0606 |
| Unco Auto Products Div 11975 Globe St, Livonia 48150 | (734) 591-1800 |
| Tru-Line Metal Products Co 30844 Industrial Rd, Livonia 48150 | (734) 261-8780 |