Thomas Wessel

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 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.

Part of RAG-Stiftung, Evonik Technology & Infrastructure GmbH is a German company that provides business support services. The company is based in Essen, Germany.

Part of RAG-Stiftung, Evonik Resource Efficiency GmbH is a German company that develops, manufactures and sells chemicals. The company is based in Essen, Germany. The company was founded in 2014. Andreas Fischer has been the CEO of the company since 2019.

Part of RAG-Stiftung, Evonik Nutrition & Care GmbH is a German company that manufactures specialty chemicals for applications in consumer goods, animal nutrition, and health care sectors. The company is based in Essen, Germany. The CEOs of the company are Johann Casper Gammelin, Lauren Kjeldsen.

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.

Evonik Operations GmbH manufactures specialty chemicals. The company was founded on August 23, 2000 and is headquartered in Weatherford, TX.

Pensionskasse Degussa VVaG engages in the provision of pension and retirement benefits. The company is headquartered in Marl, Gemany.

Evonik Services GmbH is a German company that manufactures and supplies chemicals. The private company is based in Marl, Germany.