| Business | Phone |
| Aspen Communications 10809 E Colfax Ave, Aurora 80010 | (303) 341-2999 |
| Intellyst Medical Comm 2101 S Blackhawk St # 240, Aurora 80014 | (720) 748-8800 |
| Ironwood Communications 3151 S Vaughn Way, Aurora 80014 | (303) 368-5612 |
| Precision Communications Inc 2530 S Parker Rd, Aurora 80014 | (303) 743-0465 |
| Sauter Communication Specs Ltd 15570 E Rice Pl, Aurora 80015 | (303) 693-4765 |
| Sos Communications 9333 E Colfax Ave, Aurora 80010 | (303) 363-1888 |
| U S Communications 19560 E Colfax Ave, Aurora 80011 | (720) 859-3414 |
| Summit Communications Inc 2600 S Parker Rd # 316 # 1, Aurora 80014 | (720) 748-7826 |