| Business | Phone |
| Kwang Jin America Inc 32450 N Avis Dr, Madison Heights 48071 | (248) 583-2901 |
| Yeta-Usa Inc 25235 Dequindre Rd, Madison Heights 48071 | (248) 543-0888 |
| Tech Line Automation Inc 1250 Kempar Ave, Madison Heights 48071 | (248) 589-9070 |
| Specmo Enterprises Inc 32655 Industrial Dr, Madison Heights 48071 | (248) 307-2570 |
| Rowerdink Inc 30495 Stephenson Hwy, Madison Heights 48071 | (248) 583-9668 |