Burckhard Bergmann

E.ON Ruhrgas AG distributes gas. It offers gas transmission and storage solutions. Through a long pipeline system, the company supplies natural gas to gas merchant companies, distributors and industrial users in Germany and seven other nations. It also has interests in gas companies in other countries. Its customers comprises of regional companies, local distribution companies, industry and power stations. The company was founded in 1926 and is headquartered in Essen, Germany.

E.ON Energie AG is a provider of energy services. Most of its activities are concentrated in the countries of Central Europe and Central Eastern Europe. It's power stations in Germany and abroad generate electricity and, in some cases, district heating, and have a total installed capacity of some 27,000 megawatts (MW). It's German nuclear subsidiary, E.ON Kernkraft, owns / co-owns 12 reactors in Germany's Bavaria, Lower Saxony, and Schleswig-Holstein regions, with a net installed capacity of about 8,500 MW

Accumulatorenwerke HOPPECKE Carl Zoellner & Sohn GmbH specializes in the development of technologies and services for energy storage purposes. It manufactures industrial battery systems. The firm''s products include batteries, chargers, battery changeover systems, accessories, photovoltaic and fuel cells, and battery technologies. The company was founded by Carl Zoellner in 1927 and is headquartered in Brilon, Germany.

Part of RAG-Stiftung, RAG AG specializes in coal mining. The private company is based in Essen, Germany. The CEO of the German company is Peter Schrimpf.

RAG-Stiftung operates as a private foundation. It provides financing services for the perpetual mine management as well as the educational, scientific, and cultural projects related to coal mining in the Ruhr and Saar regions. The company was founded on June 26, 2007 and is headquartered in Essen, Germany.

Hoppecke Carl Zoellner & Sohn GmbH develops and manufactures industrial batteries. The private company is based in Brilon, Russian Federation.