- A-Ok Grinding
- A-Ok Grinding
- AAA Precision Grinding Corp
- AAA Precision Grinding Corp
- American Centerless Grinding
- American Centerless Grinding
- Great Lake Precision Grinding
- Great Lake Precision Grinding
- King Centerless Grinding Co
- King Centerless Grinding Co
- LA Salle Thread Grinding Inc
- LA Salle Thread Grinding Inc
- Nichols Precision Tool Inc
- Nichols Precision Tool Inc
- Pezco Industries Inc
- Raab Precision Grinding
- Raab Precision Grinding