| Business | Phone |
| West Machine Products Inc 606 Long Lake Dr, Round Lake 60073 | (847) 740-2404 |
| Alpha Manufacturing 31632 N Ellis Dr, Round Lake 60073 | (847) 546-5904 |
| U S Machine & Tool 331 W Main St, Round Lake 60073 | (847) 740-0077 |
| B Radtke & Sons Inc 101 W Main St, Round Lake 60073 | (847) 546-3999 |
| Dynamic Tool Corp 1655 Wood St, Round Lake 60073 | (847) 223-1743 |
| E & J Precision Machining 31632 N Ellis Dr 302-, Round Lake 60073 | (847) 546-1039 |
| Mhs Automation 1655 Wood St, Round Lake 60073 | (847) 223-4666 |
| Hi-Tech Cnc 26563 W Commerce Dir, Round Lake 60073 | (847) 201-8151 |