Services - Prototype Services
- Arrow Gear Company
- American Gear, Inc.
- Artec Machine Systems
- B&R Machine and Gear Corporation
- Carnes-Miller Gear Co., Inc.
- Clarke Engineering, Inc.
- Clifford-Jacobs Forging Co.
- First Gear Engineering & Technology
- Gear Motions, Inc.
- Mechanical & Structural Design & Software
- Midwest Gear Corp.
- Nachi America
- Niagara Gear Corporation
- Nixon Gear, Inc.
- Oliver Gear, Inc.
- Perry Technology Corp.
- Raycar Gear & Machine Co.
- STD Precision Gear & Instrument, Inc.
- The Gear Works - Seattle, Inc.
- Gerhardt Gear Co.
- mG miniGears
