| Business | Phone |
| Act Affordable Comms & Phone Po Box 706, Waukesha 53187 | (262) 513-5950 |
| Black Box Network Svc 20975 Swenson Dr 450, Waukesha 53186 | (262) 798-1300 |
| Nortek Communications 1542 Jefferson Ave, Waukesha 53186 | (262) 544-8448 |
| Fortec Inc W226n825 Eastmound Dr, Waukesha 53186 | (262) 544-4300 |
| Horizon Communication Syst Inc 2021 S West Ave, Waukesha 53189 | (414) 541-6474 |
| Phone Doctors S36w32313 Depot Hill Rd, Waukesha 53189 | (262) 968-2803 |