Telecom Italia S.p.A. is the largest Italian telecommunications company. Now a private concern listed on the Borsa Italiana, it was founded in 1994 by the merger of several state-owned telecommunications companies, the most important of which was Società Italiana per l'Esercizio Telefonico p.A. The company operates landline telephone services in Italy, GSM mobile phone services in Italy and Brazil through its TIM subsidiary, and DSL internet and telephony services.