| Business | Phone |
| Larson Communications 2855 Donegal Dr, Troy 48098 | (248) 879-8349 |
| A N Communications 2628 Chanterell Dr, Troy 48083 | (248) 619-1681 |
| Unified Communications Lc 1395 Wheaton Dr, Troy 48083 | (248) 498-2200 |
| Mercury Technology Svc 1683 3 Lakes Dr, Troy 48085 | (248) 879-0075 |