Klingelnberg AG is a Switzerland-based mechanical engineering company specializing in the development, manufacturing, and sale of high-precision machines for bevel and cylindrical gear machining, as well as precision measuring centers for gears and rotationally symmetric components. Founded in 1863 and headquartered in Zurich, it serves critical industries including automotive, electromobility, wind power, aviation, rail, maritime propulsion, mining, oil and gas, agriculture, and industrial gear units. The company's product portfolio encompasses bevel gear cutting, grinding, lapping, and testing machines; cylindrical gear grinding and roll testing equipment; advanced measuring systems for gear, coordinate, form, roughness, and optical analysis; and digital solutions like smart tooling, process control, and machine analytics. Klingelnberg AG also provides engineering services such as gear design simulation, bearing optimization, and customized bevel gears. With over 1,300 employees, global production sites in Switzerland and Germany, and more than 200 patents, it maintains a leadership position through innovation, sustainability initiatives like ISO 14001 certification, and a strong focus on Industry 4.0 technologies for high-productivity gear solutions in electrified drivetrains and renewable energy applications.