| Business | Phone |
| Access Network Solutions Inc 5445 Dtc Pkwy # 4, Greenwood Vlg 80111 | (720) 875-1480 |
| Aspect Communications 8400 E Prentice Ave, Greenwood Vlg 80111 | (303) 770-1630 |
| Foundry Networks 8101 E Prentice Ave # 950, Greenwood Vlg 80111 | (303) 407-0031 |
| Parity Computer Systems Inc 6635 S Dayton St # 220, Greenwood Vlg 80111 | (303) 649-1942 |