- American Precision Machining
- APMC
- Central Engine & Machine Inc
- Central Engine & Machine Inc
- Century Grinding Inc
- Century Grinding Inc
- Chucking Machine Products Inc
- Chucking Machine Products Inc
- D E Specialty Tool & Mfg Inc
- D E Specialty Tool & Mfg Inc
- Dana Products
- Dana Products
- Dana Products
- Delta Centerless Grinding Corp
- Delta Centerless Grinding Corp
- Devon Precision Mach Products
- Devon Precision Mach Products
- Die-Tech Industries
- Die-Tech Industries
- Durable Engravers Inc
- Durable Engravers Inc
- E & R Machines & Mfr Co
- E & R Machines & Mfr Co
- ERA Industries Inc
- ERA Industries Inc
- ERA Industries Inc
- Exact Machine Inc
- Exact Machine Inc