Simone Thiäner

Telekom Deutschland GmbH provides mobile communication services. It offers fixed network telephony, broadband Internet, mobile voice and data, and IPTV products and services. The firm's technologies for mobile data transmission include GPRS, EDGE, W-LAN, UMTS, and HSDPA. The company was founded in 1993 and is headquartered in Bonn, Germany.

Bertelsmann SE & Co. KGaA engages in the provision of services related to media and education. It operates through the following segments: RTL Group, Penguin Random House, Gruner + Jahr, BMG, Arvato, Bertelsmann Printing Group, Bertelsmann Education Group, and Bertelsmann Investments. The RTL Group segment specializes in radio and television production. The Penguin Random House segment publishes books. The Gruner + Jahr segment focuses on magazines. The BMG segment engages in music production. The Arvato segment offers technology services. The Bertelsmann Printing Group segment unites the printing activities of the Bertelsmann Group. The Bertelsmann Education Group segment encompasses the overall education business. The Bertelsmann Investments segment comprises start-up and fund investments. The company was founded by Carl Bertelsmann in 1835 and is headquartered in Guetersloh, Germany.

Amazon.de GmbH provides online retail shopping services. It sells new and used books, CDs, videos and DVDs, home & garden products, consumer electronics, toys, video games, software, and computer supplies. The company was founded in 1998 and is headquartered in Munich, Germany.

Part of Deutsche Telekom AG, Deutsche Telekom Technik GmbH is a German telecommunications company. The company is based in Bonn, Germany. The CEOs are Abdurazak Mudesir, Christian Kramm, Peter Beutgen. The company was founded in 2005.

Part of Deutsche Telekom AG, Deutsche Telekom Geschäftskunden-Vertrieb GmbH is a company based in Bonn, Germany. The German company provides wired telecommunication services.