Hermann Oecking

DMT GmbH & Co. KG provides mining equipment and consulting services. The company was founded in 1990 and is headquartered in Essen, 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.

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.

TÜV HSA Holding GmbH & Co. KG is a private company based in Hannover, Germany. The CEOs of the German company are Holger W. Sievers, Guido Rettig. The company provides professional, scientific and technical services.

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.

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.

TÜV NORD Systems GmbH & Co. KG provides consulting, testing and inspection services for safety solutions. The company is headquartered in Hamburg, 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.

CETECOM GmbH engages in the provision of testing and certification of products with radio technologies. It offers EMC (electromagnetic compatibility) testing, radio testing, cellular testing, conformance testing, electrical safety testing, and audio testing services. The company was founded in 1993 and is headquartered in Essen, Germany.

Part of RWTÜV e V, Aktaios Verwaltungs-GmbH is a German company that provides investment services. The company is based in Essen, Germany. The company was founded in 2005. The CEO is Thomas Biedermann.

SYNLAB International GmbH offers medical laboratory services for practicing doctors, clinics and the pharmaceutical industry. It offers medical instruments, transfusion medicines, cytology, pathology, human genetics, and general hygiene services. The company was founded by Bartl Wimmer in 1998 and is headquartered in Munich, Germany.

Part of RAG-Stiftung, Rag Anthrazit Ibbenbüren GmbH is a 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.

Raiffeisenbank Aichhalden-Hardt-Sulgen eG is a bank that offers a new VR Banking App for both private and business customers. The private company is based in Hardt, Germany. The app is designed to be simple, fast, and secure. The CEOs are Ralf Bantle, Markus Hezel. The German company was founded in 1922.

Part of Caterpillar, Inc., Caterpillar Global Mining Europe GmbH is a German company that manufactures and distributes mining equipment. The company is based in Lunen, Germany. The CEOs of the company are Johan Masse, Thomas Reuß, Martin Wetter.

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.

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.

Lausitz Energie Bergbau AG is a German company that specializes in mining, technology, and innovation. The company is based in Cottbus, Germany. The company offers energy solutions and services such as mechanical engineering, plant optimization, technical diagnostics, rail vehicle maintenance, and more. The company is ultimately controlled by the Government of Sweden. The CEO of the company is Thorsten Kramer.

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.

Part of TÜV NORD AG, TÜV NORD Mobilität GmbH & Co. KG is a German company that provides testing and consulting services for vehicle and driving license tests. The company is based in Hannover, Germany. The company was founded in 2003. Hartmut Abeln has been the CEO of the company since 2017.

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.

Production in Time Zerspantechnik und Handels GmbH manufactures surgical instruments and implants. The private company is based in Schramberg-Sulgen, Germany. The German company was founded in 1990 by Jürgen Himmelsbach, Oswald Flaig.