| Business | Phone |
| Hoy-Heir Inc 404 W Clark St, Champaign 61820 | (217) 359-5710 |
| Information Technology Assoc 701 Devonshire Dr 127, Champaign 61820 | (217) 359-0918 |
| Motorola 1800 S Oak St, Champaign 61820 | (217) 384-8500 |
| Open Prairie Ventures 115 N Neil St 209, Champaign 61820 | (217) 351-7000 |
| Pen Dragon Productions Champaign 61820 | (217) 359-5588 |
| Precision Graphics 106 S Neil St, Champaign 61820 | (217) 359-6655 |
| Strata Decision Technology 2001 S 1st St 200, Champaign 61820 | (217) 359-8422 |
| Luster Software Inc 313 N Mattis Ave 117, Champaign 61821 | (217) 403-9911 |
| Mr Greenberg Electronic Tech 1908 Augusta Dr, Champaign 61821 | (217) 359-7998 |
| Twistar Consulting Inc 502 N Mckinley Ave, Champaign 61821 | (217) 403-1288 |
| Kimble Data Systems Inc 38 Maple Ct, Champaign 61822 | (217) 359-3600 |