Winfried Steeger

Jahr Holding GmbH & Co. KG engages in the acquisition and management of participating interests in firms, which specialize in asset management. The company is headquartered in Hamburg, Germany.

Blue Elephant Energy AG owns and operates solar and wind parks. It acquires and operates solar and wind parks as well as other infrastructure projects in the field of renewable energies. The company is headquartered in Hamburg, Germany.

Otto GmbH & Co. KG engages in the retail trading business and the provision of financial and retail-related services. It operates through the following segments: Multichannel Retail, Financial Services, and Services. The Multichannel Retail segment offers products through the channels of e-commerce, catalogue business, and over-the counter retail. The Financial Services segment specializes in receivables and liquidity management, as well as innovative financial services. The Services segment focuses on logistics and sourcing, procurement, quality testing, transport, warehousing, and delivery services. The company was founded by Werner Otto on August 17, 1949 and is headquartered in Hamburg, Germany.

Part of Freshfields Bruckhaus Deringer LLP, Freshfields Bruckhaus Deringer LLP (Germany) provides legal services. The company is based in Dusseldorf, Germany.

Grundstücksgesellschaft Mediencentrum Rotherbaum GmbH & Co. is a private company based in Hamburg, Germany. The German company engages in buying and selling of land, buildings & flats. The CEO of the company is Winfried Steeger.

Jahr Grundbesitz GmbH & Co. KG provides real estate services. The private company is based in Berlin, Germany. and has subsidiaries in Germany. The CEO of the German company is Winfried Steeger.

Verwaltung Constanze Verlag-GmbH is a German company that specializes in the administration and management of other companies and businesses. The private company is based in Hamburg, Germany. The CEO of the company is Winfried Steeger.

HMNC Holding GmbH provides investment services. The company is based in Munich, Germany. The German company was founded by Florian Holsboer. Benedikt von Braunmühl has been the CEO of the company since 2021.