Isaac Berensztejn

Embratel Participacoes SA engages in the providing of telecommunications service. It offers voice services such as, local, long distance domestic and international; mobility; data transmission; video; Internet; telepresence; cloud computing; data center; satellite solutions and value-added IT solutions and telecommunications. The company also provides convergent solutions Telecommunications and IT with mobile telephony and enterprise mobility. It is also involves in optical fibers, metropolitan optical rings, submarine cables and satellites. The company was founded on May 22, 1998 and is headquartered in Rio de Janeiro, Brazil.

Net Serviços de Comunicação SA engages in the provision of pay-television and broadband internet services. It offers traditional and subscription-based television programming, broadband Internet and telephone services, pay-per-view alternatives, programming resources, triple play, and fixed telephone services. The company was founded in 1991 and is headquartered in São Paulo, Brazil.

Star One SA provides satellite telecommunications services to clients including television and radio broadcasters, telephone and internet service providers, and web-based businesses. The company was founded in 2000 and is headquartered in Rio de Janeiro, Brazil.

Claro SA engages in the provision of telecommunications services to corporate and individual clients. It offers fixed and mobile telephony, broadband internet, and cable television subscriptions in prepaid and postpaid billing schemes. The company was founded in 1992 and is headquartered in Sao Paulo, Brazil.