| Business | Phone |
| Arena Solutions 1116 Warren Ln, Vernon Hills 60061 | (847) 680-0308 |
| Lite Technologies 700 Forest Edge Dr, Vernon Hills 60061 | (847) 478-9000 |
| Dick Powers 241 Tally Ho Dr, Vernon Hills 60061 | (847) 549-0344 |
| Mike Jablo Vernon Hills 60061 | (847) 821-0369 |