| Business | Phone |
| Cdw Corp 200 N Milwaukee Ave, Vernon Hills 60061 | (847) 465-6000 |
| Paramark Inc 1175 Corporate Woods Pkwy 210, Vernon Hills 60061 | (847) 821-8820 |
| Dgm Creative 977 Lakeview Pkwy, Vernon Hills 60061 | (847) 918-9486 |
| Linderman Media Group 2008 N Trevino Ter, Vernon Hills 60061 | (847) 549-9410 |