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Aachener Strassenbahn & Energieversorgungs AG provides public transport services. The firm's fleet includes its own and hired buses. It operates parking lots and garages. The company's subsidiaries include APAG, ESBUS Eschweiler Bus & Service GmbH and ASEAG-Reisen GmbH. Aachener Strassenbahn & Energieversorgungs was founded in 1880 and is located in Aachen, 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.

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.

TÜV NORD AG provides testing, inspection, and certification services. It offers seminars, courses, professional development, and in-house training courses in relevant subjects to companies and private individuals. The company was founded in 1869 and is headquartered in Hannover, Germany.

RWTÜV eV operates as an association, which focuses on the protection of natural and legal persons, property, and environment from detrimental impacts of technology. The company was founded in 1872 and is headquartered in Essen, Germany.

Enwor - Energie & Wasser Vor Ort GmbH is a German company that supplies water, electricity, and natural gas through online means. The company is based in Herzogenrath, Germany, and has subsidiaries in Germany. The private company was founded in 1909, and the CEO is Axel Thomas.

AWA Entsorgung GmbH is a waste management company based in Eschweiler, Germany. AWA employs a team of 160 people who ensure waste disposal for 820,000 people. The German company offers a repair guide for broken items and a customer service team for waste management advice. The private company was founded in 1991 and is led by CEO Frank Wolff.

Part of Stadtverwaltung Marl, Neue Marler Baugesellschaft mbH constructs non-residential buildings. The company is based in Marl, Germany. The German company was founded in 1951. The CEO is Christoph Thier.

Gemeinnützige Wohnungsbaugesellschaft für die StädteRegion is based in Wurselen, Germany. The German company provides real estate services. The non-profit company was founded in 1951. The CEO is Axel Thomas.

Part of Lebenshilfe fuer Behinderte eV, Albert-Schweitzer-Einrichtungen fuer Behinderte gGmbH is a company based in Dinslaken, Germany. The German company provides services for disabled individuals, including the KoKoBe and a café. The CEO of the company is Meinhard Reichelt.

Van Ameyde International BV offers internal claims process auditing for the insurance industry. Its services include claims handling, claims adjusting and surveying such as outsourcing claims processes, claims overflow services, fleet management, and risk management. The company was founded by H.A. van Ameyde in 1945 and is headquartered in Rijswijk, the Netherlands.

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.

Universitätsklinikum Essen A.d.ö.R. is a top-rated hospital located in Essen, Germany. The hospital is part of the Universitätsmedizin Essen hospital network, which includes 15 other subsidiaries such as the Ruhrlandklinik, St. Josef Krankenhaus Werden, Herzchirurgie Huttrop, and Westdeutsche Protonentherapiezentrum Essen. The hospital network employs approximately 11,000 people and has 1,700 beds.

RWTÜV GmbH is a technology service provider based in Essen, Germany, with subsidiaries in Germany. The German company's focus is on diversity, integrity, communication, customer orientation, sustainability, and entrepreneurship. The private company provides services in energy and environmental, telecommunications, insurance, and advanced consulting. The company has made strategic investments and is a secure partner for investments. The company also prioritizes company succession. The CEO of the company is Reinhold Rüther.

Part of Stadtwerke Luenen GmbH, Energiehandel Luenen GmbH generates wind and biomass electric power. The company is based in Luenen, Germany. The CEO of the German company is Achim Grunenberg.

Knappschaftsklinikum Saar GmbH is a company based in Puttlingen, Germany. The German company specializes in providing medical services and operates various specialized clinics and medical centers. Knappschaftsklinikum Saar GmbH was founded in 1862. The CEO is Andrea Massone.

DSL-Dienst- und Serviceleistungen - GmbH Knappschaftskrank provides an overview of the clinics and specialized departments at the University Hospital Knappschaftskrankenhaus Bochum. The private company is based in Bochum, Germany. The centers offer highly professional treatment for a range of conditions, including colon cancer, epilepsy, and transplantation. The CEOs of the German company are Hans-Peter Jochum, Thomas Tatka.

DRK-Pflegedienste Herzogtum Lauenburg gGmbH provides nursing and outpatient care services. The private company is based in Ratzeburg, Germany. The CEO of the German company is Peter Timmermanns.

EWV Energie- und Wasser-Versorgung GmbH engages in the energy supply business. Its product portfolio includes electricity, natural gas, heating, and drinking water. The firm also offers photovoltaic systems. The company was founded in 1994 and is headquartered in Stolberg, Germany.

Klinikum Herford Aör operates as a medical facility that offers cutting-edge medical services. The company is headquartered in Herford, Germany.

Part of Stadt Bergkamen Bergkamen, GSW Gemeinschaftsstadtwerke GmbH Kamen, Bönen, Bergkamen supplies electricity, natural gas, and water. The company is based in Kamen, Germany. The CEO of the German company is Jochen Baudrexl.

Part of Stadtwerke Luenen GmbH, Wirtschaftsbetriebe Luenen GmbH is a waste disposal and management company based in Luenen, DE. Wirtschaftsbetriebe Luenen GmbH offers services such as green space management, recycling, and technical services. The German company also provides training programs and job opportunities. Additionally, they operate a recycling center and offer container services for bulky waste. The company was founded in 2002 and is led by CEOs Achim Grunenberg and Stefan Jonic.