| Business | Phone |
| Avtex Inc 20900 Swenson Dr 100, Waukesha 53186 | (262) 798-8990 |
| Telegration Inc 909 Blackstone Ave, Waukesha 53186 | (262) 970-7070 |
| Telerep N11w28698 Northview Rd, Waukesha 53188 | (262) 896-1700 |
| Pronto Communicaitons Inc W222n615 Cheaney Rd, Waukesha 53186 | (262) 544-6500 |
| North American Communications N19w24400 Riverwood Dr 375, Waukesha 53188 | (262) 523-0007 |