- Arrow Machine Industries
- Bear Machine Inc
- C & S Machining
- Cerco Tool & Mfg
- Chromalloy San Diego Inc
- Diversified Technology-Dvlpmnt
- Emberton's Machine & Tool Inc
- G A Machine
- Goodsell Machine
- Griffith's Machining
- High Precision Grinding
- Iron Sharpens Iron Mfg
- Jiffy Machine & Welding
- Laudeman Engineering
- M B Mfg
- Precision Billet Inc
- Rem Machine
- Reyes Machining
- Roling Engineering & Machining
- S R Fox Inc
- Webbtech Precision Machining