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Tele Norte Celular Participações SA provides telecommunication services. It offers services which include data transmission, telex, mobile phone, telephone, wireless and internet services. The company was founded on May 22, 1998 and is headquartered in Rio de Janeiro, Brazil.

Telemar Norte Leste SA engages in providing telecommunications services. It operates through the following segments: Fixed Telephony/Data, Mobile Telephony, and Other. The Fixed Telephony/Data segment offers local and long distance voice transmission and data communication services. The Mobile Telephony segment consists of mobile voice, 3G data communication, and additional services, which include messaging services and interactivity. The Other segment covers pay TV services, internet service provider, means of payment, and call center. The company was founded in 1998 and is headquartered in Rio de Janeiro, Brazil.

Dommo Empreendimentos Imobiliários SA operates as a holding company that engages in the management, purchase, and sale of real estate property. It also offers consulting and financial investment services. The company was founded on July 31, 2000 and is headquartered in Sao Paulo, Brazil.