| Business | Phone |
| Area-Wide Technologies Inc 2110 Clearlake Blvd, Champaign 61822 | (217) 422-1601 |
| Data Security Solutions 2110 Clearlake Blvd 203, Champaign 61822 | (217) 352-3562 |
| Hci Networking 411 Devonshire Dr, Champaign 61820 | (217) 355-2010 |
| Sun Microsystems 701 Devonshire Dr 115, Champaign 61820 | (217) 359-1164 |
| Synergy Data Solutions Inc 1104 S State St A, Champaign 61820 | (217) 356-2522 |
| Viscon Networking Innovations 467 Devonshire Dr, Champaign 61820 | (217) 352-4404 |
| Zeltech It Svc 415 Devonshire Dr, Champaign 61820 | (217) 352-1916 |
| Telogix Systems Inc 2504 Galen Dr, Champaign 61821 | (217) 355-4400 |