| Business | Phone |
| Toshiba America Electronic 2150 E Lake Cook Rd, Buffalo Grove 60089 | (847) 541-7287 |
| Icon Clinical Research Buffalo Grove 60089 | (847) 459-4048 |
| Properties Assessment Svc Po Box 6283, Buffalo Grove 60089 | (847) 639-7277 |
| Test America Analytical Inc 1380 Busch Pkwy, Buffalo Grove 60089 | (847) 808-7766 |