| Business | Phone |
| Amateur Electronic Supply 5710 W Good Hope Rd, Milwaukee 53223 | (414) 358-0333 |
| Electronic Sales Lafayette 7115 W National Ave, Milwaukee 53214 | (414) 258-2010 |
| General Communications Inc 12040 W Feerick St N, Milwaukee 53222 | (414) 535-1845 |
| Milwaukee 2-Way Inc 11408 W Lincoln Ave, Milwaukee 53227 | (414) 546-2011 |
| Viking Communications 1421 S 62nd St, Milwaukee 53214 | (414) 771-8960 |
| Warden's Communications Svc 2701 S 92nd St, Milwaukee 53227 | (414) 541-2900 |
| Radcom Wireless 10600 W Bluemound Rd, Milwaukee 53226 | (414) 431-0953 |