| Business | Phone |
| Mathson Industries 1845 Thunderbird, Troy 48084 | (248) 269-7696 |
| Itw Deltar Fasteners 850 Stephenson Hwy 500, Troy 48083 | (248) 589-2500 |
| Blackhawk Automotive Plastics 1111 W Long Lake Rd 102, Troy 48098 | (248) 641-5959 |
| Springfield Products Industry 275 E Big Beaver Rd 101, Troy 48083 | (248) 619-7031 |
| Proto Plastics Inc 1100 Piedmont Dr, Troy 48083 | (248) 689-2348 |
| Engineering Technology Intl 2901 Wagonwheel Dr, Troy 48085 | (248) 689-1844 |
| Multidimensional Extrusion 450 Park Dr, Troy 48083 | (248) 588-8885 |
| Mitchell Plastics 296 Town Center Dr, Troy 48084 | (248) 680-1430 |
| Millenium Manufacturing 1350 Rankin Dr, Troy 48083 | (248) 589-1400 |
| Pavsa Usa Corp 451 Robbins Dr, Troy 48083 | (248) 577-5169 |