- A & M Machining
- Castillon Brothers
- Champ Co
- Co-Mar Enterprises Inc
- D & E Machine
- Experimental Associates
- G T Machining
- Haig Precision Mfr
- J & E Machining
- J D Engineering & Assoc
- Jessee Brothers Machine Shop
- Jesus Castillon
- Johnson Brothers Machining
- K & K Manufacturing Inc
- Kaeding Performance Inc
- Magic Machining
- Metal-Craft
- Metric Design & Mfg Inc
- Micro Precision Machining
- MJB Precision Machining
- Pacific Coast Mfg
- Precision Identity Corp
- Pro-Cision Machining
- R B Tool
- Re-Del Engineering
- RJS Machine Products
- Ron Witherspoon Inc
- Rubio's Precision Machining
- S & S Machining
- Tool Engineering Svc Co
- Triad Precision
- Yorke Precision Inc
