Oi, also known as Oi S.A., a publicly owned company headquartered in Brazil, was founded in 1998 with an estimated 19,860 employees, and reported $1.5 billion in revenue as of 2024. It functions as a tier 1 media tech buyer. The company operates as a Brazilian telecoms operator, formerly known as Telemar, specializing in telecoms services.

2024 Revenue

Founded

1998

Headcount

20,154

Headquarters

Brazil

Primary Segment

Telecoms

Ownership

Publicly Owned

News Summary:

Bankrupt Brazilian telecoms company Oi agreed on July 14, 2026, to sell its fixed-line services unit, known as Isolated Production Unit (UPI) Telephone Services, to Método Telecomunicações for R$60.1 million (US$11.7m). This agreement followed Oi's formal execution on July 10, 2026, of a Purchase and Sale Agreement with Método Telecomunicações e Comércio Ltda. for the UPI Telephone Services, building on earlier disclosures from March and April 2026. Previously, on June 27, 2026, Pharol announced its acquisition of a 19.55% stake in Novobanco and Oi through Tavrion PT04, signaling a strategic realignment in Portugal’s financial and telecom sectors. This followed news from May 25, 2026, that BTG Pactual-backed fibre and data centre operator V.tal joined TIM, Vivo, Claro, and Sercomtel in formally registering to participate in the auction for Oi Solucoes, Oi's corporate connectivity and IT division. Earlier, on May 22, 2026, Oi reported a mixed performance in its Q1 2026 earnings, with revenue increasing 4.4% year-over-year to BRL 6.4 billion driven by growth in mobile and fixed broadband services. However, the company’s EBITDA declined 12.1% to BRL 2.3 billion due to higher operating expenses and lower margins in the fixed segment, with management highlighting plans to invest in its 5G network and digital transformation while improving operational efficiency.

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Oi offers 5 products in the media and telecoms services industry. Oi's product portfolio comprises of telecoms.
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Oi's revenues were $1.5B in 2024. Caretta Research has split Oi's revenue into 3 different product categories, the largest of which is mobile services, which represents 33% of Oi's revenue.
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Examples of Oi's suppliers include Vantiva, AppsFlyer and Google.

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