| Business | Phone |
| Mc Clain Communications Inc 1492 Maple Way Dr, Troy 48084 | (248) 643-8012 |
| Integrated Information Svc 2100 W Big Beaver Rd 101, Troy 48084 | (248) 822-2100 |
| Technoventures 100 W Big Beaver Rd 200, Troy 48084 | (248) 597-0945 |
| Contractors Computers Svc 1955 Stephenson Hwy # F, Troy 48083 | (248) 680-8639 |
| Quantum Training Ctr 1172 E Big Beaver Rd, Troy 48083 | (248) 524-9707 |
| R Peluso Troy 48084 | (248) 645-1017 |
| Technical Consulting Group 101 W Big Beaver Rd 14, Troy 48084 | (248) 288-5617 |
| Computer Training 1301 W Long Lake Rd, Troy 48098 | (248) 952-1375 |
| Computer Horizons Education 5455 Corporate Dr 306, Troy 48098 | (248) 641-1500 |
| Michigan Academy 1000 John R road,, Troy 48083 | (248) 588-0123 |