- Aleco Machine
- American Tool Works Corp
- Bowling Precision Machining
- Cincinnati Hydraulic Svc
- CINCINNATI Precision Mchnry
- Dresser-Rand
- Enterprise Machine & Tool
- Estes Machine Prods Inc
- Hamilton Machine Svc LLC
- Lou's Machine Shop
- Lykins Technical Svc
- Micron North Machining Inc
- Mulcahey Inc
- R & K Machine Shop
- Toolmaster
