- Adolt Manufacturing & Design
- Advanced Precision Machining
- B C Doering Co
- De Chellis Machine
- De Chellis Machine
- DGA Machine
- DGA Machine
- DNA Machining
- DNA Machining
- Gertler Industries
- Gertler Industries
- Harbor Machine Shop
- Harbor Machine Shop
- Macfarlane Engineering
- Macfarlane Engineering
- Nimmo Machine