Olaf Kraus

Deutsche Bahn AG engages in the provision of mobility, logistics, and passenger transport services. It operates through the following segments: DB Long-Distance, DB Regional, DB Arriva, DB Cargo, DB Schenker, DB Netze bStations, and DB Netza Energy. The company was founded in 1994 and is headquartered in Berlin, Germany.

Thyssen'sche Handelsgesellschaft mbH operates as a development stage company. The company is headquartered in Mulheim an der Ruhr, Germany.

STEAG GmbH engages in the planning, development, construction, and operation of power plants and storage facilities. Its services include conventional power generation, energy trading and optimization, district heating, as well as distributed generation. The company was founded in 1937 and is headquartered in Essen, Germany.

RAG Coal International AG operates as a holding company with interest in specializing in coal producing, manufacturing and trading of mining equipment. The company was founded in 1996 and is headquartered in Essen, Germany.

Roeser Medical GmbH operates as a holding company, which engages in the supply of medical products and services to clinics and similar facilities. It offers examination couches, otoscopes, urine test strips, tourniquets, blood collection systems, microscopes, table centrifuges, blood pressure monitors, disinfectants, and biopsy punches. The company was founded in 1918 and is headquartered in Essen, Germany.

EWE AG provides utility services such as distribution of electricity and gas. The firm supplies electricity and natural gas, water management, communication infrastructure, Internet connections, billing systems in network control, energy trading, and energy management. The company was founded in 1943 and is headquartered in Oldenburg, Germany.

Deutsche Steinkohle AG provides coal mining services. Its coke coal is used primarily for the production of steel and its hard coal is used for power generation. It operates mines in Northrhine-Westphalia, in the Saarland and a coking plant in Northrhine-Westphalia. The company is headquartered in Herne, Germany.

Part of RAG-Stiftung, RAG Immobilien AG is a German company that provides real estate management services. The company is based in Essen, Germany.

Stadtwerke Göttingen AG is an energy service provider based in Göttingen, Germany, founded in 1859. The German company is responsible for providing gas, energy, heat, and water to Göttingen and the surrounding region. The company also offers emergency services for gas leaks, water supply disruptions, and district heating interruptions. Additionally, the company assists with the renewal of heating systems. Stadtwerke Göttingen AG is ultimately controlled by the City of Göttingen.

Stadtentwaesserung Dresden GmbH provides water-cleaning services. The private company is based in Dresden, Germany.

Gas-Union GmbH engages in the production and supply of natural gas. The firm operates through the following segments: Sales, Trading, and Services; Networks; Storage; and Upstream. The Sales, Trading, and Services segment focuses on product procurement, sales, distribution, and risk management processes. The Networks segment refers to product transport. The Storage segment is reponsible for technical storage and services. The Upstream segment specializes in gas exploration. The company was founded in 1961 and is headquartered in Frankfurt, Germany.

Stadtwerke - Altmaerkische Gas-, Wasser- Und distributes electricity, gas, and water and is ultimately controlled by the City of Stendal. The company is based in Stendal, Germany. The CEOs are Thomas Bräuer, Doe Klitzke, Thorsten Jansing. The German company was founded in 1886.

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.

VEBA Kraftwerke Ruhr AG is a German company that produces and distributes steam, compressed air, and power. The private company is based in Gelsenkirchen, Germany.

Familie Julius Thyssen Verwaltungsgesellschaft mbH engages in the acquisition and management of participating interests in firms. It focuses on businesses in the liquefied petroleum gas, building hardware, DIY store, machine and plant construction, packaging, and financial investment sectors. The company was founded on October 19, 1992 and is headquartered in Muelheim an der Ruhr, Germany.

Jacob Stauder GmbH & Co. KG is a family-owned company based in Essen, Germany that has been brewing beer for over 150 years in the heart of the Ruhr area. The German company places a high value on training and education, with many of its employees having completed their apprenticeships with the company. The CEOs of the private company are Thomas Stauder and Axel Stauder, who are sixth-generation family members.

Open Grid Europe GmbH provides natural gas transmission services. The firm's activities include design and construction of pipelines from conceptual design, project management, and engineering to implementation operation of the pipeline system. It offers services including maintenance and repair, as well as control and monitoring of the network and storage facilities; provision of capacity management services that include capacity assessment and development of new gas industry standards; marketing of the capacities and support of customers; and quantity determination, and billing services. The company was founded in 2004 and is headquartered in Essen, Germany.

Founded in 1997, Hansewasser Bremen GmbH is a subsidiary of EWE AG that provides wastewater disposal and environmental services. The company is based in Bremen, Germany.

Marien Gesellschaft Siegen gGmbH provides integrated healthcare services. The company was founded by Friedrich Adam Krengel in 1857 and is headquartered in Siegen, Germany.

Wasserwerke Westfalen GmbH is a German water treatment company that provides drinking water to 1.5 million people in the southern Münsterland, middle and eastern Ruhr area, and northern Sauerland. The company prepares water from the Ruhr river in its six waterworks located between Wickede (Ruhr) and Witten. The company is based in Schwerte, Germany and was founded in 2001. The company ensures the quality and freshness of the drinking water and also focuses on environmental management and cooperation with agriculture and energy companies. Wasserwerke Westfalen is a subsidiary of the City of Dortmund. The CEOs are Bernd Heinz and Bernhard Klocke.

Part of Kath. Kirchengemeinde St. Dionysius, Katholisches Klinikum Essen GmbH operates general medical hospitals and colleges. The company is based in Essen, Germany. The CEO of the German company is Holger Raphael.

Contilia Pflege und Betreuung GmbH engages in the management and operation of senior homes. It offers services, which include nursing and personal care, living assistance, and housekeeping. The company was founded on March 15, 1999 and is headquartered in Essen, Germany.

Part of Contilia GmbH, Elisabeth-Krankenhaus Essen GmbH is a healthcare services provider. The company is based in Essen, Germany. The German company was founded in 1844. The CEO is Peter Berlin.

Part of St. Marien-Hospital Krankenhaus, St Marien Hospital Mülheim An der Ruhr GmbH is a healthcare company based in Mulheim an der Ruhr, Germany. The CEOs of the German company are Dirk Albrecht, Hubert Brams. The company operates an acute care hospital with a total of 367 beds and offers a wide range of basic and standard care in nine specialist departments, including internal medicine, general and visceral surgery, orthopedic surgery, psychiatry, and intensive care medicine as well as radiology.

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

WMR Wasserbeschaffung und Energieerzeugung Mittlere Ruhr GmbH is a company based in Germany that engages in the supply of water. The private company was founded in 1970 and the CEO is Dirk Waider.

GELSEN-NET Kommunikationsgesellschaft mbH provides internet, telephone, and cloud services. The private company is based in Gelsenkirchen, Germany. The CEOs are Thomas Dettenberg, Carsten Wick. The German company was founded in 1983.

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

St. Laurentius Seniorenwerk GmbH provides nursing care and disable care services. The non-profit company is based in Essen, Germany. The CEOs are Heinz-Jürgen Heiske, Helga Nottebohm. The German company was founded in 1999.

NKM Dienstleistungs GmbH is a company based in Prien am Chiemsee, Germany. The CEOs are Jens Egert, Kerstin Eisenbeiß, Patrick Mickler. The German company was founded in 2005.

St. Andreas Seniorenwerk GmbH is a private company based in Essen, Germany. The German company is led by CEOs Heinz-Jürgen Heiske and Helga Nottebohm.

Medizinisches Versorgungszentrum für Labormedizin und Mikrobi is a private company headquartered in Essen, Germany. The firm operates hospitals. It was founded in 1997. Carsten Preuß and Yuriko Stiegler are the current co-CEOs of the company.

Erenja AG & Co. KG provides electricity generation services. The private company is located in Germany.

Stauder Verwaltungsgesellschaft mbH provides investment services. The private company is based in Essen, Germany. The CEOs are Thomas Stauder, Axel Stauder. The German company was founded in 1972.

Fjt Familie Nette Verwaltungsgesellschaft Mbh provides management services. The private company is based in Mulheim an der Ruhr, Germany. The CEOs are Benedikt Boucke, Achim Breidenstein, Jürgen Heite. The German company was founded in 2001.

OBI Group Holding SE & Co. KGaA operates as a holding company with interests in retailing construction and gardening supplies and tools. The firm's product range encompasses wood and construction materials, tiles, power tools, machinery, ironware, paints, wallpapers, lamps, balcony, pots, room plants, and garden furniture. It develops and manages stores that also offer an assortment of do-it-yourself products for decoration and home improvement. Its focus areas encompass store management, brand marketing, and business development and expansion. The company was founded by Emil Lux and Manfred Maus in 1970 and is headquartered in Wermelskirchen, Germany.

Städtische Werke Magdeburg GmbH & Co. KG is a company based in Magdeburg, DE. Städtische Werke Magdeburg GmbH & Co. KG is a subsidiary of the City of Magdeburg. The German company provides various services such as electricity, electric car charging, heating, water supply, and wastewater disposal. The company is currently offering apprenticeships. The company was founded in 1993, and Helmut Herdt has been the CEO of the company since then.