Thomas Künzi

DSD Steel Group GmbH is a steel construction and maintenance company, engages in the engineering, production, and erection of steel structures in Germany and internationally. The company’s structural steel work activities include bridge-building and structural engineering; steel construction services for the hydraulic engineering, project management, manufacturing, and assembly; and the construction of container cranes, hydro mechanical equipment, and assembly technology for the iron and steel industry. It also provides various maintenance services, including construction of ready-to use plants, repair of component assemblies, plant and machine maintenance and assembly, and industrial installation services. The company was founded in 2004 and is headquartered in Saarlouis, Germany.

Heidland Werres Diederichs Rechtsanwaltsgesellschaft mbH is a German company that provides legal services. The private company is based in Cologne, Germany. The company was founded by Herbert Heidland.

Ströer Management SE is a private company based in Cologne, Germany. The CEOs of the German company are Udo Müller, Christian Schmalzl. The company provides management services.