| Business | Phone |
| It24.Com 60 Hazelwood Dr, Champaign 61820 | (217) 384-3005 |
| Knf & Assoc 206 N Randolph St, Champaign 61820 | (217) 352-3596 |
| Micro System Intl 505 S Neil St 103, Champaign 61820 | (217) 356-7226 |
| Mobeus Designs Inc 610 S 6th St, Champaign 61820 | (217) 344-3570 |
| Powerworld 2001 S 1st St 2, Champaign 61820 | (217) 384-6330 |
| Ramjet Computing 1823 S Neil St 100, Champaign 61820 | (217) 355-0755 |
| Simplified Computers 901 S Neil St A, Champaign 61820 | (217) 352-5000 |
| Sourcegear 115 N Neil St 408, Champaign 61820 | (217) 356-0105 |
| Team Prise 115 N Neil St 408, Champaign 61820 | (217) 356-8515 |
| Volition Inc 1 E Main St 300, Champaign 61820 | (217) 355-0320 |
| Wolfram Research Inc 100 Trade Centre Dr 6, Champaign 61820 | (217) 398-0700 |
| Spectrum Corp 2003 Round Barn Rd B, Champaign 61821 | (217) 356-5770 |
| Taxtronic Software 900 S Mattis Ave, Champaign 61821 | (217) 355-6657 |
| Power Distribution Inc 2706 N Mattis Ave, Champaign 61822 | (217) 355-4000 |
| Virtual Sales Department Champaign 61822 | (217) 586-6120 |
| Laser Lab Po Box 1112, Champaign 61824 | (217) 398-1700 |
| Willis Armstead Computer Sftwr Po Box 2692, Champaign 61825 | (217) 898-8648 |