| Business | Phone |
| Advanced Networking Solutions Northbrook 60062 | (847) 291-1688 |
| Aventail Corp 5 Revere Dr, Northbrook 60062 | (847) 498-7321 |
| Genesis Integrators 1101 Skokie Blvd, Northbrook 60062 | (847) 412-9990 |
| Dm Solutions Northbrook 60062 | (847) 272-7240 |
| Computer Warehouse Club 425 Huehl Rd, Northbrook 60062 | (847) 714-0107 |
| Computerized Business Sltns 604 Academy Dr, Northbrook 60062 | (847) 412-9320 |