Harald Sikorski

Industriegewerkschaft Bergbau Chemie Energie operates as a trade union. The private company is based in Hannover, Germany.

Part of RAG-Stiftung, Rag Anthrazit Ibbenbüren GmbH is a private company based in Ibbenbüren, Germany. Rag Anthrazit Ibbenbüren GmbH specializes in solutions for water management, groundwater purification, and real estate. The German company's website also mentions their focus on sustainability and responsible business practices. The company was founded in 1989, and the CEO is Bernd Tönjes.

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.

Part of RAG-Stiftung, Vivawest GmbH is a German company that focuses on the development and value enhancement of their properties. The company is based in Gelsenkirchen, Germany. The private company manages over 120,000 apartments in NRW, providing homes for approximately 300,000 people. The company offers a repair service to quickly address emergencies and repairs for their tenants. The company was founded in 2006 and is led by CEOs Claudia Goldenbeld and Haluk Serhat. Vivawest was acquired by RAG AG on June 30, 2015.

GSB Gesellschaft zur Sicherung von Bergmannswohnungen mbH engages in the coordination of the interests of the tenants of miners' apartments and housing associations. The company was founded on December 29, 1981 and is headquartered in Essen, Germany.

Part of Südwestdeutsche Salzwerke AG, Südsalz GmbH is a German company that produces salt. The private company is based in Munich, Germany. Kai Fischer has been the CEO of the company since 2011.