Mario Girasole

TIM Participações SA is a holding company, which engages in the provision of wireless cellular telecommunication services. The company provides private and public telephone services at both the local and regional levels. It offers wireless and fixed line telephone services, pre-paid mobile, post-paid mobile, GSM mobile services, and Internet access services. The company was founded on May 22, 1998 and is headquartered in Rio de Janeiro, Brazil.

TIM Brasil Serviços e Participações SA provides telecommunication services. The company is headquartered in Sao Cristovao, Brazil.

Telecom Italia America Latina SA provides telecommunication services. It operates landline telephone and GSM mobile phone services in Brazil. The company is headquartered in Barra de Tijuca, Brazil.

Telebrasilia Celular SA provides cellular telecommunication services.

Tim Celular SA provides telecommunications services. It offers short message services or text messaging, multimedia messaging services, push-mail, blackberry service, video call; turbo mail, wireless application protocol downloads, web browsing, business data solutions, songs, games, television access, voice mail, conference calling, chats, and other content and services, as well as pre-paid broadband services. The company was founded in 2003 and is located in Sao Paulo, Brazil.

Federação das Indústrias do Estado de São Paulo (FIESP) is based in São Paulo, Brazil. The Brazilian company is focused on improving the quality of life of workers in the industry, their families, and the community in general. The private company's subsidiary, Sesi, plays a fundamental role in the social development of Brazil by collaborating effectively with the improvement of the quality of life of workers in the industry, their families, and the community in general. The company also operates the SENAI-SP portal, which provides industrial learning services.