Maria Zesch

T-Mobile Austria GmbH engages in the provision of mobile telecommunications, fixed-line network, and Internet services. It also operates an online platform, which offers mobile phones. The company was founded in October 1996 and is headquartered in Vienna, Austria.

Part of TAKKT AG, VHZ Versandhandelszentrum Pfungstadt GmbH is a wholesaler of cardboard, paper, stationery, office supplies, books, magazines, and newspapers. The private company is based in Pfungstadt, Germany. The CEOs are Maria Zesch, Claude Tomaszewski. The German company was founded in 2006.

oekostrom AG für Energieerzeugung und -handel engages in the construction and operation of installations for the use of renewable energy sources. It also develops models for the efficient generation, use, and conservation of energy. The company was founded on April 28, 1999 and is headquartered in Vienna, Austria.

Part of Deutsche Telekom AG, Magenta Telekom Infra GmbH is a telecommunications company based in Vienna, Austria. The Austrian company offers a range of services including internet, television, mobile network, and mobile devices. Magenta Telekom Infra also provides Magenta Youth Tariffs with unlimited minutes and SMS, and 25 or 40 GB of data. Customers can also purchase an iPad Pro with an M2 chip, Liquid Retina Display, and an ultrawide-angle camera with a 12 MP sensor. Rodrigo Francisco Diehl has been the CEO of the private company since 2022.