Zacharias Piperidis

Polska Telefonia Cyfrowa Sp zoo provides wireless telephonic services in Western Europe. Its services include call forwarding, call waiting, voicemail, account information, short message service, multimedia messaging service, information services and wireless Internet access. It also offers roaming services to its subscribers in 156 countries. The company's products and services are sold under the brand name, Era. Polska Telefonia Cyfrowa offers its services to individual post paid, prepaid, and corporate customers. Polska Telefonia Cyfrowawas founded in 1995 and is headquartered in Warsaw, Poland.

Nova Telecommunications & Media Single Member SA provides wireless telecommunication services. It offers wind triple play, mobile, fixed and Internet, broadband, mobile and device solutions. The company was founded in 1992 and is headquartered in Athens, Greece.

COSMOTE begins its commercial operations five years after its competitors and radically changes the status of mobile telecommunications in Greece. It is the only company of its sector in the world, which entered the market third and yet managed to become number one in only 3.5 years. It took only 3 years for COSMOTE, April 1998 to June 2001, to become the leading operator in the Greek market. This impressive achievement is compounded by the fact that it is the only 3rd entrant to achieve 1st place in its market. Currently it has more than 4.6 million customers in Greece with the leading market position and also has presence in 4 other Balkan countries: in Albania (AMC), in Bulgaria (GLOBUL), in FYROM (COSMOFON), and in Romania (COSMOTE Romania). The Company in 2005 generated approximately 1.8 billion euro in revenues and 340 million euro in net profit. Both the Company's EBITDA margin (approx. 42%) and net profit margin (approx. 19%) remain consistently among the highest in Europe. In addition, COSMOTE has expanded its operations in B2B and B2C services through its participation in CosmoONE and COSMO-MEGALA KATASTIMATA respectively.

Part of Vodafone Group Plc, Vodafone (Greece) is a Greek company that provides mobile telecommunication services. The company is based in Halandri, Greece. Haris Broumidis has been the CEO of the company since 2016.

Albanian Mobile Communications provides mobile telecommunications services. It offers GSM network service covering 85% of the Albanian territory. The company is present in five countries of South Eastern Europe. AMC Mobil was founded in June, 1996 and is headquartered in Tirane, Albania.

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.

O2 Germany GmbH & Co. OHG provides telecommunications services. It provides mobile services to subscribers in Germany. Its customers include BMW, Christian Dior and TCHIBO. The company introduced 3G service to business and consumer customers and it has a joint venture with TCHIBO to sell pre-paid service under the Tchibo Mobilfunk name. The company was founded in 1995 and is headquartered in Munich, Germany.

OTE Plc provides interest bearing loans. It raises bonds and loans from the market. The company was founded on December 17, 1999 and is headquartered in London, the United Kingdom.