
Cescon Barrieu’s telecoms practice is headed by Thays Castaldi Gentil, who is recognised for her expertise in telecoms regulatory matters and project finance. Her practice spans a wide range of issues, including complex agreements, M&A transactions, administrative proceedings, data protection, and internet law. The team advises telecoms companies on negotiating self-composition agreements, license renewals, acquisitions, and the development of innovative business models. Gentil works alongside Matheus Palhares Vieira, a public law expert with in-depth telecoms knowledge who regularly acts in administrative proceedings and has advised on privatisation processes for state-owned telecoms entities.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘The team combines extensive knowledge of the sector with experience in applying the regulations in practice ’
‘Thays Castaldi Gentil is always responsive and provides practical advice.’
Key clients
- Telefônica Brasil
- Algar Telecom
Work highlights
Advised Telefônica on drafting and negotiating the Self-Composition Term to be signed with Anatel before the Brazilian Federal Court of Advisors to replace Telefônica’s landline concession agreement with an authorisation.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head
Thays Castaldi Gentil
Other key lawyers
Matheus Vieira
