Georg-Stephan Wilkening

AGO AG Energie + Anlagen specializes in energy supply systems for industry and municipalities. The firm engages in the provision of supply of heat, refrigeration, steam, compressed air, or electricity in the area of industrial energy supply systems as well as operators of these energy supply facilities. It operates through the provision of heat engineering, refrigeration engineering, power supply, and ventilation and climate technology. It also provides classical plant engineering and implementation services, consulting, energy efficiency consulting, and emission trading services. The company was founded in 1980 and is headquartered in Kulmbach, Germany.

Part of Meyer Burger Technology AG, Roth & Rau USA, Inc. manufactures plasma processing equipment for the photovoltaic industry. The private company is based in San Mateo, CA.