Johannes Jansen

Slovak Telekom, a.s. provides telecommunication services to residential and corporate clients in Slovakia. It offers a range of services, including voice and data services through landline and mobile telecommunication networks, Internet connectivity, digital TV services, MMS messaging services, and roaming services. Slovak Telekom was founded on April 1, 1999 and is headquartered in Bratislava, Slovakia.

T-Mobile International AG & Co. KG provides telecommunications services. As strategic business segment of Deutschen Telekom AG for mobile telephony, the company concentrates on mobile telephony markets in Europe and the USA. The company is a partner of the FreeMove alliance, which they founded together with three other european mobile phone providers: Orange, Telefónica Móviles Espana and TIM (Telecom Italia Mobile). The company was founded in 1999 and is headquartered in Bonn, Germany.

T-Mobile Czech Republic a.s. provides telecommunications services. The company offers mobile telecommunication services, internet, television, mobile phones, tablets, laptops and modems. The company was founded on February 15, 1996 and is headquartered in Prague, Czech Republic.

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.

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.

Orange Romania Communications SA provides telecommunications services. It offers internet, mobile and landline telephone, roaming, migration, and digital television solutions, as well as trade of mobile phones and tablets, and accessories. The company was founded in 1930 and is headquartered in Bucharest, Romania.

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

Buyin SA is a Belgian procurement company that specializes in telecommunications industry. Buyin is based in Brussels, BE. The private company provides technical consultancy with commercial cost insights and leverage scale and innovation across all the strategic telco product categories. The company creates solutions to increase competitiveness on the basis of a demand plan and in constant interaction with their customers. The company has a proven track of building strong long-term relationships with suppliers and partners. Béatrice Felder has been the CEO of the company since 2019.