Horst Piepenburg

Sat.1 Beteiligungs GmbH operates as a holding company with interest in newspaper publishing services and media enterprises. Its core business lies in newspapers, magazines, and the digitization of its distribution channels which are supported by printing works and distributing organizations. The company is headquartered in Berlin, Germany.

VEM Vermögensverwaltung GmbH manufactures construction materials. The company also offers residential places for rents as well as for sale and provides maintenance services to museums, heritage buildings and monuments. VEM Vermögensverwaltung was founded in 1887 and is headquartered in Dresden, Germany.

A-Z Beteiligungen GmbH operates as a holding firm. The company was founded on November 23, 2005 and is headquartered in Cologne, Germany.

Ziems & Partner Unternehmensberater provides financial consulting services. The private company is based in Cologne, Germany. The CEOs are Elmar Geissinger, Stephan Maas, Hans-Joachim Ziems. The German company was founded in 1996.

A.T.U. Auto-Teile-Unger Handels GmbH & Co. KG owns and operates a chain of car and truck parts retail and repair franchises. The firm also specializes in the retail distribution, installation, as well as maintenance of automotive parts and accessories. Its product portfolio includes tires, alloy rims, airbags, seats, seat covers, batteries, oil, and stereo systems. The company was founded by Peter Unger in 1985 and is headquartered in Weiden in der Oberpfalz, Germany.

Part of LEONI AG, LEONI Kabel GmbH is a German company that manufactures and supplies cables. The company is based in Roth, Germany. The CEO of the company is Hans-Joachim Ziems.

Part of LEONI AG, LEONI Kerpen GmbH is a leading provider of standard and special management for the automotive industry. The company is based in Stolberg, Germany. The German company develops and produces technically sophisticated products for the automotive industry, ranging from single-cathated vehicle management to complete electrical system systems with integrated electronics. Additionally, the company offers wires and strands, standardized lines, special cables, and completely assembled systems for applications in different industrial markets. The company was founded in 2007. The CEO is Michael Keßler.

KATHREIN SE engages in the acquisition, holding, management, and sale of participations in companies that specialize in the development, production, and distribution of electronics, antenna technology solutions, components and systems, as well as electrical equipment used in the industrial sectors, automotive systems, broadband communications systems, filters, switches and amplifiers, broadcasting systems, mobile communications, satellites, and terrestrial receiving systems. The company was founded by Anton Kathrein Sr. in 1919 and is headquartered in Rosenheim, Germany.