Ferdinand Maria Dirnhofer

AUMA Riester GmbH & Co. KG engages in the design, development and manufacture of electric actuators as well as valve gearboxes. Its products include multi-turn and part-turn, linear actuators, multi-turn and part-turn gearboxes, controls and communication systems. It also offers automation of all valve types solution. The firm serves water, energy, oil and gas, and industry markets. The company was founded by Werner Riester and Rudolf Dinse in 1964 and is headquartered in Müllheim, Germany.

Part of AUMA Riester GmbH & Co. KG, AUMA Riester Verwaltungsgesellschaft mbH is a German company that provides management services. The company is based in Muellheim, Germany. The CEOs are Ferdinand Maria Dirnhofer and Jörg Werner Hoffmann. The company was founded in 1993.

Auma - Armaturenantriebe GmbH is a company based in Muellheim, Germany. The German company manufactures and distributes valves and machine drives. It was founded in 1976 and is led by CEOs Ferdinand Maria Dirnhofer and Jörg Hoffmann.

AUMA Drives GmbH is a German company that specializes in developing and producing high-quality gearbox solutions and customized drive systems. The private company is based in Coswig, Germany. The company's products, such as worm gearboxes, are used in elevators worldwide. The company places a strong emphasis on maintaining high testing standards throughout their development and production processes to ensure maximum gearbox quality. A professional customer service is also essential for this international manufacturer of gearboxes and drive systems. The company was founded in 1896 by Herrmann Arthur Pekrun, and the CEOs are Ferdinand Dirnhofer, Thomas Suckut, Jörg Hoffmann.