| Business | Phone |
| Integrated Inventory Tech 5400 Patton Dr, Lisle 60532 | (630) 493-9900 |
| National Business Systems Inc 906 Lacey Ave, Lisle 60532 | (630) 493-3490 |
| Porsche Business Svc 4343 Commerce Ct, Lisle 60532 | (630) 225-3200 |
| Spectrum Business Resources 4343 Commerce Ct, Lisle 60532 | (630) 799-1800 |
| Wis Intl 801 Warrenville Rd, Lisle 60532 | (630) 968-5544 |