| Business | Phone |
| Human Information Tech Svc 200 E Big Beaver Rd, Troy 48083 | (248) 457-4535 |
| 1 Tech Information Systems 2080 Somerset Blvd # 206, Troy 48084 | (248) 637-8667 |
| Via Information Tolls Inc 5607 New King Dr, Troy 48098 | (248) 265-4483 |
| Systems Information Inc 1850 Axtell Dr, Troy 48084 | (248) 822-3966 |
| C Di Information Svc 466 Stephenson Hwy, Troy 48083 | (248) 397-5000 |
| Resources Usa Info Technology 3310 W Beaver Rd, Troy 48084 | (248) 458-8100 |
| Hurdling Handicaps Speaking 1417 Fountain Dr, Troy 48098 | (248) 544-7731 |
| Harita Info Svc 100 W Big Beaver Rd 63, Troy 48084 | (248) 526-3307 |
| Classic Auto Showplace Ltd 2222 Stephenson Hwy, Troy 48083 | (248) 689-1968 |