Harald Wolf

Part of Lhoist SA, Rheinkalk GmbH is a German company that manufactures lime and dolomite stone products. The company is based in Wülfrath, Germany. The CEOs of the company are Michael Liell, Paul Alexander Schipper, Philipp Niemann.

Fernwärme Transportgesellschaft mbH operates district heating networks. The company is based in Boeblingen, Germany. The CEOs are Gerd Hertle, Karl Peter Hoffmann. The German company was founded in 2009.

Part of Stadt Frankfurt der Oberbuergermeister, Frankfurter Dienstleistungsholding GmbH is a corporate service provider that offers a range of services including termination training, sewage treatment, waste collection, and disposal. The company is based in Frankfurt, Germany. The company is a subsidiary of the city of Frankfurt and operates through its subsidiaries, including Stadtwerke Frankfurt (oder) and er abfallwirtschaft gmbh, which provide electricity, natural gas, heat, and waste disposal services to the region. The German city transport company ensures that the city remains in motion, with approximately 11 million passengers using their tram and regular buses every year. The company also provides corporate services, career contact, data protection, and consulting services. The CEO of the company is Irene Djaouat.