| Business | Phone |
| Kvm Systems 2210 Midwest Rd 105, Oak Brook 60523 | (630) 573-1938 |
| Lanier Worldwide Inc 820 Jorie Blvd 120, Oak Brook 60523 | (630) 990-0047 |
| Mercantile Trust Credit Card 2021 Midwest Rd, Oak Brook 60523 | (630) 953-8546 |
| Merchant Services Midwest 2021 Midwest Rd 302, Oak Brook 60523 | (630) 889-8244 |
| Replay Systems 1100 Jorie Blvd, Oak Brook 60523 | (630) 954-1977 |
| Verbatim Corp 600 Enterprise Dr 102, Oak Brook 60523 | (630) 654-1990 |