| Business | Phone |
| American Medical Industries 28045 N Ashley Cir 106, Libertyville 60048 | (847) 918-9449 |
| Oakwood Enterprises Po Box 492, Libertyville 60048 | (847) 367-1028 |
| Manufacturing Technology Assoc 1840 Industrial Dr, Libertyville 60048 | (847) 549-1066 |