| | PCO Inc PCO is a manufacturer of polyurethane parts, including, but not limited to: wheels, rollers, plugs, plates, bumpers, liners, tool racks, shock absorbers, hammers, gears, sprockets, blocks, casters, and doffers. | |
| | Aerospace Gear Inc Precision gears for aircraft & aerospace industries | |
| | Apex Gear Machine shop: drilling, boring, plastic, general & CNC machining, mill & lathe work, threading, custom gears, hydraulic parts & pumps | |
| | Avon Gear Co Iron & steel gears | |
| | Central Gear Inc Screw machine products, machine tools, gears & gear cutting | |
| | Factory Gear Commercial & industrial gears | |
| | Gear Products Inc Custom commercial & plastic gears | |
| | Hanover Gear Manufacturing Co Gears & gear cutting | |
| | Heclyn Precision Gear Co Inc Fine pitch custom gears | |
| | Industrial Gear Works Inc Gears & gear cutting | |
| | Invincible Gear Co Manufactures gears | |
| | L M Gear Co Gears & screw machine products | |
| | Merit Gear Corp Gears & gear assemblies for OEM, gear boxes, heat treat; transmission components | |
| | Milwaukee Gear Co Gears & gear boxes; heat treating | |
| | Omni Gear & Machine Corp Spur, worm, helical & industrial gears | |
