Hellenic Telecommunications Organization (OTE S.A.) is Greece's largest telecommunications operator, providing services to consumers, Greek and foreign businesses and public agencies.

Apart from serving as a full service telecommunications group in the Greek telecoms market, during the last decade OTE Group has expanded its geographical footprint throughout South East Europe, acquiring stakes in the incumbent telecommunications companies of Romania and the Republic of Serbia and establishing mobile operations in Albania, Bulgaria, the FYROM and Romania.


The Group also offers mobile telephony, internet access, broadband, ISDN, satellite, high - speed data communications and leased lines services.

OTE is among the five largest listed companies with respect to capitalization in the Athens Stock Exchange and also trades on New York (NYSE) and London (LSE) Stock Exchanges.