Petra Rossbrey

ZEAG Energie AG engages in the provision of energy-related services. It operates through the Gas and Electricity segments. The Gas segment engages in the distribution of natural gas. The Electricity segment provides sales of electricity, power distribution and provision of energy-related services. The company was founded on December 9, 1888 and is headquartered in Heilbronn, Germany.

Flughafen Hamburg GmbH provides consulting and other services, both in the airport sector and in other fields. It operates through the following: Aviation, Ground Handling, Center Management, and Real Estate Management. The Aviation division is to maintain, ensure, and enhance safe and smooth flight operations. The Ground Handling division holds the contracts with the airlines along with the shares in ground handling service holding companies. The Center Management division includes all property rentals at Hamburg Airport, the concept and design of retail and food court areas, and the management and marketing of advertising operations. The Real Estate Management division maintains and provides the entire infrastructure for Hamburg Airport. The company was founded in 1911 and is headquartered in Hamburg, Germany.

ZF Friedrichshafen AG provides driveline and chassis as well as active and passive safety technology solutions. The company was founded on August 20, 1915 by Alfred Count von Soden-Fraunhofen and Alfred Colsman and is headquartered in Friedrichshafen, Germany.

SupplyOn AG provides supply chain collaboration solutions. It offers purchase to pay, supply management, supply chain performance management, transport management, source to contract, procurement, supplier management, and quality management solutions. The company was founded in 2000 and is headquartered in Hallbergmoos, Germany.

TenneT Holding BV engages in the provision of power transmission services, system services and facilitation of the energy market. It functions as grid operator under the Dutch and German energy laws, the Elektriciteitswet and the German Energiewirtschaftsgesetz. It operates through the following segments: TSO Netherlands and TSO Germany. It is also involved in certain limited non-regulated activities, which help to ensure the energy market performs properly. The company was founded in 1998 and is headquartered in Arnhem, the Netherlands.

Technische Werke Friedrichshafen GmbH operates parking garages. The private company is based in Friedrichshafen, Germany. and has subsidiaries in Germany. The CEO of the German company is Alexander-Florian Bürkle.

Flughafen Stuttgart GmbH is the largest transport hub in Baden-Württemberg, Germany. The company is based in Stuttgart, Germany. The German company aims to be one of the most successful and sustainable airports in the long term. The company is ultimately controlled by the State of Baden-Württemberg. The company was founded in 1924. Ulrich Heppe has been the CEO of the company since 2023.

Part of Landesbank Baden-Württemberg, Projektgesellschaft Neue Messe GmbH & Co. KG operates a trade center. The company is based in Stuttgart, Germany. The CEOs of the German company are Ulrich Kromer von Baerle, Walter Schoefer.

Part of Zeppelin-Stiftung, Luftschiffbau Zeppelin GmbH is a German company that provides real estate services. The company is based in Friedrichshafen, Germany. The CEOs are Thomas Brandt, Jörg Bischof. The company was founded in 1908 by Ferdinand von Zeppelin.

TenneT Offshore GmbH operates regional electricity grids and is ultimately controlled by the Government of the Netherlands. The company is based in Bayreuth, Germany. The CEOs are Wilfried Breuer, Markus Glatfeld. The German company was founded in 2007.

ZIM Flugsitz GmbH manufactures and supplies aircraft seats. The firm's product range includes seats for economy, premium economy, and business class. The company was founded by Angelika and Peter Zimmermann in 2009 and is headquartered in Markdorf, Germany.