| Business | Phone |
| Visual Solutions Inc 900 North Shore Dr 212, Lake Bluff 60044 | (847) 604-8579 |
| Synercor Inc 710 Safford Ave, Lake Bluff 60044 | (847) 234-5772 |
| Credit & Management Systems 49 Sherwood Ter 49e, Lake Bluff 60044 | (847) 735-9700 |
| Quality Computer Pros Inc 33 N Waukegan Rd 5, Lake Bluff 60044 | (847) 735-9495 |
| Great Spirit Systems 1014 W Woodland Rd, Lake Bluff 60044 | (847) 234-9993 |