Klingelnberg AG develops and manufactures machinery tools. The firm engages in the production of bevel and cylindrical gears, measuring centers, and gear components. It operates through the following business divisions: Bevel Gear Technology, Clylinder Gear Technology, Measuring Centers, and Drive Technology. The company was founded by Julius Klingelnberg and Ernst Klingelnberg in 1863 and is headquartered in Zurich, Switzerland.