| Business | Phone |
| Primary Communications 1621 Spencer Ave, Wilmette 60091 | (847) 853-7441 |
| Hsa Corp 2526 Thornwood Ave, Wilmette 60091 | (847) 256-4840 |
| Localnet Corp Wilmette 60091 | (847) 256-7460 |
| Tsr Consulting Svc Inc 2450 Iroquois Rd, Wilmette 60091 | (847) 256-7536 |