Klingelnberg AG develops, manufactures, and sells machines for bevel and cylindrical gear machining, and measuring centers for axially symmetrical objects and gears in Germany, Switzerland, Japan, the United States, and internationally. It operates through Bevel Gear, Cylindrical Gear, Measuring Centers, Drive Technology, and Other segments. The company offers tool management, bevel gear cutting, bevel gear grinding, bevel gear lapping, and bevel gear testing machines, as well as related software, tools and fixtures, after sales services, and tool management products. It also provides cylindrical gear grinding and roll testing machines, machine operating software, and after sales service; and precision measuring centers, application products, and accessories, as well as gear, general coordinate, form and position, roughness, contour, and optical measurement products. In addition, the company offers customized bevel gears; range of engineering services, including bearing-pattern optimization, calculations, design and simulation of gear components, and determination of static and dynamic factors of the complete system; and digital solutions, which include smart tooling and process control, machine status analyzer, OPC UA UMATI, machine gate, and smart factory. It serves automotive, maritime propulsion, rail, mining/materials handling, oil and gas, agriculture, racing transmission, robot, aviation, electromobility, and wind power industries, as well as crusher gearboxes, commercial vehicles, industrial gear units, and contract manufacturers. The company was formerly known as Oerlikon Geartec AG Klingelnberg AG and changed its name to Klingelnberg AG in March 2004. Klingelnberg AG was founded in 1863 and is headquartered in Zurich, Switzerland.