| Business | Phone |
| Advanced E-Business Solutions 605 Garden Blvd, Belleville 62220 | (618) 239-6522 |
| Skyway Software 521 W Main St, Belleville 62220 | (618) 222-0397 |
| Covenant Systems Belleville 62220 | (618) 277-6110 |
| Eccentric Solutions 3460 Langford Ln, Belleville 62221 | (618) 416-0456 |
| Federated Software Group 4977 Benchmark Centre Dr, Belleville 62226 | (618) 624-0189 |
| Intranet Solutions 521 W Main St 201, Belleville 62220 | (618) 473-3332 |
| Micro Technologies Inc 9720 W Main St, Belleville 62223 | (618) 394-0058 |