Oi S.A. is a Brazilian telecommunications company headquartered in Rio de Janeiro. It provides fixed-line telephony, broadband internet, data transmission, and corporate services across Brazil. Formerly known as Telemar and Brasil Telecom, the company originated from the 1998 privatization of the Telebrás system and expanded nationwide through acquisitions.
Oi S.A. operates under judicial reorganization. It has sold its mobile assets and certain business units to focus on fiber optic infrastructure and corporate solutions. The company maintains concessions for switched fixed telephony services.
Also known as Telemar and Brasil Telecom.
None yet. When a new project in the record names Oi as owner, partner or investor, it shows here.
Governance refreshed to accelerate financial reorganisation, improve operational efficiency and preserve liquidity; new CEO and turnaround-focused leadership appointed.
