- Marhefka Gear & Engineering
- Marine Gears Inc
- Marine Propulsion Inc
- Marples Gears Inc
- Martin Sprocket & Gear Inc
- Master Gear
- Merit Gear Corp
- Merit Gear Corp
- Metro Gear
- Metro Gear
- Midwest Gear
- Midwest Manufacturing Co
- Milwaukee Gear Co
- MJH Gear & Tool Co Inc
- Moore Gear & Mfg Co
- Moore Machine & Gear Co
- Mostar Gear & Machine
- Mr Gears
- New England Gear
- Niagara Gear Corp
- Nicholson Gear Technology
- Nissei Corp Of America
- Nixon Gear Inc
- Nordex Inc
- Nortek Gear
- North Shore Gear & Tool Corp
- North Texas Gear & Machine
- Northlake Industries Inc
- Northwest Gears Inc
- Numeric Engineering
- Ohio Gear Richmond Gear
- Orlandi Gear Co
- P & M Machine
- Pace Performance Industries
- Pawlus Gear Co
- Peerless-Winsmith Inc
- Perfection Gear
- Perry Technology Corp
- Perry Technology Corp
- Philadelphia Gear Corp
- Philadelphia Gear Corp
- Philadelphia Gear Corp
- Philadelphia Gear Corp
- Philadelphia Gear Svc Ctr
- Philidelphia Gear Corp
- Phoenix Gear Mfg
- Power Engineering & Mfg LTD
- Power Transmission Svc
- Prager Inc
- Precipart Corp
- Precision Gear Drive Inc
- Precision Gear Inc
- Precision Gear Inc
- Precision Gears Inc
- Precision Machine & Gear Inc
- Precision Speed Mfg
- Pro Gear Co Inc
- Pro Gear Svc
- Production Concepts
- Profile Gear
- Profile Gear
- Prophet Gear
- Quality Gear
- Radian Tool Co
- Ram-Gear Mfg
- Ramsey Products Corp
- Raycar Gear & Machine Inc
- Reliance Electric Co
- Richmond Gear & Machine Corp
- Riedel Inc
- Riley Gear Corp
- Riley Gear Corp
- Riverside Spline & Gear
- Riverside Spline & Gear
- Robertson Manufacturing Co
- Rochester Gear Inc
- Rockland Precision Gearmotors
- Roton Products Inc
- S F Differential Repair Svc
- Satellite Gear
- Schwartz Precision Gear Co
- SECS Inc
- Selector Spline Products Inc
- Sewall Gear Mfg Co
- Shafer Gear Works Inc
- Skykat Gear Shop
- Snyder Industries Inc
- Sound Gear & Spline Inc
- Southern Gear & Machine Inc
- Southern Gear Works Inc
- Specialty Gears Inc
- Springdale Machine & Gear Co
- Springdale Machine & Gear Co
- St Louis Gear Co
- Stahl Gear & Machine Co
- Standard Gear Mfg
- State Gear Co
- State Tool Gear Co
- STD Precision Gear
- STERLING Gear Inc
- Stevenson Machine Inc
- Stewart Gear Mfg
- Stine Gear & Machine Co
- Stoy Machine & Gear Inc
- Supreme Gear
- TEK Engineering
- TEK Gear & Machine Inc
- Textron Power Transmission
- Tiejin Seiki Boston Inc
- Timron Precision Gear
- Titanium Engineering & Mfg
- TLJ Products Inc
- Triumph Gear Systems Macomb
- Trojon Gear Inc
- Twin City Gear Grinding
- Unicor Inc
- United Precision Gear Co
- Universal Machine Co Inc
- Valley Gear & Machine
- Value Component Sales Co
- VCST Powertrain Components
- W J Albro Machine Works
- Wayne Carrell
- Wayne Carrell
- Webster Gears
- Worcester Gears & Racks
- Worcester Gears & Racks Inc
- Zimmer Gears
