| Business | Phone |
| Area Wide Networking Technolgy 2110 Clearlake Blvd 203, Champaign 61822 | (217) 359-8041 |
| B P Computer Svc 1313 S Mattis Ave, Champaign 61821 | (217) 352-6479 |
| Cisco Systems Inc 2302 Fox Dr # A, Champaign 61820 | (217) 363-4500 |
| Cu Tech Group Champaign 61820 | (217) 649-2798 |