| Business | Phone |
| V Soft Technologies Inc 39w456 Homeward Hill Dr, St Charles 60175 | (630) 377-8630 |
| Elumber Solutions 103 W Main St, St Charles 60174 | (630) 443-9525 |
| Ex-Comp St Charles 60174 | (630) 762-9440 |
| Extreme Software Inc 38w656 Dean St, St Charles 60175 | (630) 513-5955 |
| Freidel Computing Technologies 3n861 Babson Ln, St Charles 60175 | (630) 443-0871 |
| Impact Technology Resources 2400 E Main St # 103, St Charles 60174 | (630) 762-9800 |