- Business
- Oi S.A. is a leading Brazilian telecommunications company that provides a comprehensive range of telecommunications services including fixed-line and mobile voice services, broadband internet, data transmission, and pay-TV services. The company offers products and services such as mobile telecommunications through postpaid and prepaid plans; fixed telephony; broadband internet access via ADSL, fiber optics, and other technologies; data transmission services for enterprise customers; cloud and IT solutions; and pay-TV services. Oi operates extensively in Brazil, serving both retail and corporate clients with a broad geographic presence throughout the country. Founded in 1998, the company is headquartered in Rio de Janeiro, Brazil.
In recent years, Oi has undergone significant changes including a strategic restructuring effort following its judicial reorganization process. This restructuring has included divestitures of non-core assets to focus on its telecommunications infrastructure and service offerings. The company has also entered into strategic partnerships to expand its fiber optic network and improve broadband coverage. Additionally, Oi has been actively launching new fiber optic services to enhance its market position in high-speed internet access and expanding its corporate services portfolio. The company continues to leverage its extensive infrastructure network to support digital transformation initiatives across Brazil. These operational and strategic changes reflect Oi's commitment to modernization and strengthening its core business in a competitive telecommunications market.
Oi S.A. operates primarily in the telecommunications industry, targeting residential, small and medium-sized businesses, and large corporate clients across Brazil. The company’s key business segments include fixed and mobile telephony, broadband internet, pay-TV services, and enterprise telecommunications solutions. Oi is one of the largest telecom operators in Brazil by subscriber base and infrastructure footprint. It remains a critical player in Brazil’s telecommunications sector and is listed on the São Paulo Stock Exchange under the ticker symbol OIBR4.SA.