| Business | Phone |
| Jan Corp Inc 4030 White Eagle Dr, Aurora 60504 | (630) 375-1000 |
| Babbage's Software 2128 Fox Valley Ctr, Aurora 60504 | (630) 236-4495 |
| Systems Me Computer 1955 W Downer Pl, Aurora 60506 | (630) 264-6547 |
| Kontill Solutions 918 Industrial Dr, Aurora 60506 | (630) 801-9358 |
| Imprint Enterprises Inc 555 N Commons Dr, Aurora 60504 | (630) 505-1700 |
| Orient International Inc 314 Abington Woods Dr, Aurora 60502 | (630) 236-5752 |
| Sryas Inc 3157 Bennett Pl, Aurora 60502 | (630) 898-0000 |
| Sunray Consulting 1286 Dunbarton Dr, Aurora 60502 | (630) 585-0671 |
| Golden Gate Software Inc Aurora 60504 | (630) 585-0989 |
| Infix Solutions 448 Belvedere Ln, Aurora 60502 | (630) 236-1455 |