| Business | Phone |
| Third Generation 2730 Roundtree Dr, Troy 48083 | (248) 524-9839 |
| Churchill Systems Inc 3221 W Big Beaver Rd # 218, Troy 48084 | (248) 649-1800 |
| Data Communications Corp 5750 New King Dr 320, Troy 48098 | (248) 952-5050 |
| Digital Island 1352 Madison Dr, Troy 48083 | (248) 680-9942 |
| Churchill Systems Inc 3155 W Big Beaver Rd # 106, Troy 48084 | (248) 649-1800 |
| Eds Corp 5505 Corporate Dr, Troy 48098 | (248) 696-1450 |
| Eds Corp 5555 New King Dr, Troy 48098 | (248) 312-7000 |