Services - Gear Hobbing Services and Manufacturing
- Abundant Manufacturing, Inc.
- B&R Machine and Gear Corporation
- Buffalo Gear, Inc.
- C-B Gear & Machine, Inc.
- Carnes-Miller Gear Co., Inc.
- Clarke Engineering, Inc.
- First Gear Engineering & Technology
- Forest City Gear
- Havlik International Machinery, Inc.
- High Performance Gear
- Innovative Rack & Gear Co, Inc.
- Ka-Wood Gear & Machine Co.
- Lawler Gear Corp.
- Midwest Gear Corp.
- Nachi America
- Niagara Gear Corporation
- Nixon Gear, Inc.
- Oliver Gear, Inc.
- Perry Technology Corp.
- R.T. Blackhawk Machine Products, Inc.
- Raycar Gear & Machine Co.
- STD Precision Gear & Instrument, Inc.
- The Gear Works - Seattle, Inc.
- United Gear & Assembly, Inc.
- Gerhardt Gear Co.
- McCullough Industries, Inc.
- mG miniGears
- OEM Industries, Inc.
