other

Updated:

TIM S.A.

TIM S.A. is an SEC-registered investment adviser in LONGWOOD, FL, registered since 2012. The firm manages approximately $490 million in regulatory assets.

TIM S.A.

TIM S.A. is an SEC-registered investment adviser in LONGWOOD, FL, registered since 2012. The firm manages approximately $490 million in regulatory assets. It has 4 employees and 3 investment advisers.

Website
tim.com.br

General information

Firm type

other

Year founded

1998

Location

Region

Latin America

Country

Brazil

City

Longwood

Corporate office

Rio de Janeiro, Brazil

Principals

Alberto Mario Griselli

Chief Executive Officer

Sector focus

Telecommunications

Frequently asked questions

Who controls TIM S.A. after Telecom Italia's exit?

TIM Brasil no longer has a single controlling shareholder. In 2022, Telecom Italia sold its majority stake to IHS Towers, which subsequently reduced its position. Today, TIM S.A. operates with a dispersed shareholding structure on the B3 stock exchange, managed by a professional board and executive team led by CEO Alberto Mario Griselli (per the firm's official communications).

What role did the Oi asset acquisition play in TIM's scale?

In 2022, TIM participated in a consortium with Vivo and Claro to acquire Oi's mobile operations for roughly R$16.5 billion. TIM's portion added around 14.5 million subscribers and valuable spectrum, allowing it to close the gap with its two main competitors. The full network migration finished in January 2025, cementing a more balanced three-player market.

Does TIM operate fiber-to-the-home broadband?

Yes, TIM Live is the company's FTTH broadband service, passing more than 15 million households primarily in Brazil's Southeast. It represents TIM's strategy to diversify revenue beyond mobile by becoming a convergent connectivity provider, competing with Claro's NET-branded cable network and Vivo's fiber offers.

What spectrum bands does TIM hold for 5G?

TIM secured spectrum in the 3.5 GHz, 2.3 GHz, and 700 MHz bands during Brazil's 2021 5G auction. It was an early adopter of 5G standalone architecture in the country, launching commercial service in select cities in 2022 and expanding coverage through 2024, targeting enterprise use cases alongside consumer mobile broadband.

How does TIM's structure differ from Vivo and Claro in Brazil?

Vivo is controlled by Spain's Telefónica, and Claro is the Brazilian arm of Mexico's América Móvil. TIM, by contrast, no longer answers to a foreign telecom parent after Telecom Italia's divestiture. This independence allows management to prioritize long-term infrastructure returns without the strategic pull of a global parent's media or content agenda.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

Need institutional-grade insight on investors?

Altss delivers:

Principals with verified direct contactsAllocation history by asset classOSINT-derived deal signals
Book a demo

Prefer a guided tour?

We’ll walk you through:

Interactive funding timelinesCustom mandate & allocation filters
Book a demo

More Longwood other profiles