Part of Volkswagen AG, Renk Maag GmbH is a high-performance gearbox manufacturer that operates globally. The private company offers original MAAG technology and have a production facility based in Germany. Renk Maag provides new turbo gearboxes, integral gear units, synchronous clutch and toothed couplings, and spare parts for MAAG turbo gearboxes and MAAG marine gearboxes. The Swiss company's service technicians are deployed throughout the year to install and maintain gearboxes for customers worldwide. The company also has a network of agents and an ultra-mobile service team to provide support locally. With over 100 years of experience in gearbox construction, Renk Maag offers winning solutions for specific applications.

Part of RENK AG, Renk Test System GmbH is a leading provider of drive technology and offers reliable systems that set vehicles and machines in motion. The private company is based in Augsburg, Germany. The CEOs are Mathias Karrer, Rainer Thomay. The German company was founded in 2000.