| Business | Phone |
| Wheeler Inc 320 E Washington St, Oswego 60543 | (630) 554-0700 |
| Brocade Communications 4776 Reservation Rd, Oswego 60543 | (630) 551-1800 |
| Responsive Network Svc Llc 320 E Plainfield Rd, Oswego 60543 | (630) 554-0700 |
| Hansen Partnership Inc Oswego 60543 | (630) 554-2559 |