- Ceramtech
- Classic Turning Inc
- Commander Precision Machining
- Jackson Custom Machining
- Lee Blake Precision Machine
- M & M Automatic Products Inc
- Main & Co
- Metalform
- Microtech Machine Co
- P T & T Precise Machining
- Petty Machine & Tool
- Ruede Products Inc
- Scott Machine Inc
- Terry Tool & Die Co Inc
- Thoman Tool
- Wolverine Industries Inc
- Wolverine Industries Inc
