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Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados

Work +55 61 3218 6000
Brasilia, London, New York, Rio de Janeiro, Sao Paulo
Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados, Thiago Luís Sombra, Brasilia, BRAZIL

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Thiago Luís Sombra

Work +55 61 3218 6010
Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados

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Partner - Compliance and Coporate ethics, Business public law, Data protection and Cybersecurity, Telecommunications and Information technology.


Thiago has experience in cross border investigations and cases conducted by law enforcement authorities regarding Data Protection, Technology Regulation and Anti-Corruption. Thiago also advise clients on cases related to Business Public Law such as state-owned companies governance, administrative sanctioning procedures, bids and public procurement contracts. He was State Attorney before the Brazilian Supreme Court (STF) and Superior Court of Justice (STJ), and clerk at the STJ. He is currently a Private Law Professor at the University of Brasilia (UnB), arbitrator at the London Court of International Arbitration-LCIA, member of the International Association of Privacy Professionals (IAPP) and International Chamber of Commerce (ICC) . He is certified by the International Association of Privacy Professionals with CIPP / Europe and CIPP / Management.


Portuguese, English and Italian.


- Bachelor of Laws, Centro Universitário de Brasília
- Master’s degree in Private Law, Pontifícia Universidade Católica
- Specialization in Cyberlaw, focusing on privacy protection and data protection, London School of Economics, United Kingdon
- Post-graduation in Private Law, Università degli Studi di Camerino, Italy
- Currently pursuing a PH.D in data and privacy protection, Universidade de Brasília



Within: Compliance

Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados has 'an extremely good knowledge of the Brazilian market and market practices', and clients also highlight the firm's technical skills as a 'key competitive advantage'. With a team is split between the São Paulo, Brasília and Rio de Janeiro offices, the broad compliance and corporate ethics practice covers everything from prevention to crisis management. Highlights included representing an oil-and-gas company in a multilateral investigation into allegations of bribery and in the negotiation of a leniency agreement. Thiago Luís Sombra focuses his practice on anti-corruption, public law and data protection. Thiago Jabor Pinheiro, Renato Tastardi Portella and Kevin Michael Altit are recommended.

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Public law

Within: Public law

The 'responsible' and 'efficient' public law lawyers at Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados are 'always personally engaged'. It has a broad infrastructure practice, and also advises its clients on administrative contracts, negotiations with governmental authorities and in administrative proceedings. The 'polite and intelligent' Thiago Luís Sombra 'has a strong name in this area', and 'great attorney' Lauro Celidonio Gomes dos Reis Neto 'solves problems quickly'. Bruno Dario Werneck has an active infrastructure and public procurement practice.

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Within: TMT

Mattos Filho, Veiga Filho, Marrey Jr. e Quiroga Advogados has invested strongly in the technology and data privacy fields and its service offering now covering the full range of services. Fabio Ferreira Kujawski focuses on telecoms and Thiago Luís Sombra has a strong track record for internet and data privacy regulation. Paulo Brancher joined in July 2018, increasing the partner count to three.

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