| Business | Phone |
| A W Radtke Tool Corp 111 W Greenwood Ave, Waukegan 60087 | (847) 662-7373 |
| Z & L Machining Inc 3140 Central Ave, Waukegan 60085 | (847) 623-9500 |
| Zupansic Tool & Die Inc 828 S Jackson St, Waukegan 60085 | (847) 336-6770 |
| Vari-Op Co 1209 Pine St, Waukegan 60085 | (847) 623-7667 |
| T & F Machine & Tool 111 W Greenwood Ave, Waukegan 60087 | (847) 625-0377 |
| Tolerance Manufacturing Inc 1435 10th St, Waukegan 60085 | (847) 244-8836 |
| Stevens Instrument Co 111 E Greenwood Ave, Waukegan 60087 | (847) 336-9375 |
| Griffin Machining Inc 2233 Northwestern Ave D, Waukegan 60087 | (847) 360-0098 |
| Lcm 2233 Northwestern Ave, Waukegan 60087 | (847) 623-6327 |