Ralf Nejedl

Drawing on a global infrastructure of data centers and networks, T-Systems operates information and communication technology (ICT) systems for multinational corporations and public sector institutions. On this basis, the company provides integrated solutions for the networked future of business and society. T-Systems combines industry expertise and ICT innovations to add significant value to customers' core business all over the world.

T-Mobile Polska SA engages in the operation of mobile phone networks. It also offers telephones, routers, modems, tablets, and computers. The company provides caller identification, hotspot, high definition voice and Internet services. T-Mobile Polska was founded in 1995 and is headquartered in Warsaw, Poland.

GTS Poland Sp zoo provides telecommunications services. The company was founded in 1997 and is headquartered in Warsaw, Poland.

T-Systems International GmbH engages in the development, implementation, operation, and marketing of client- and industry-specific solutions in the information processing and telecommunications sectors. These include security, data processing, information management, training, and consulting services. The company was founded on August 30, 2004 and is headquartered in Frankfurt, Germany.