
Mattos Filho's compliance and corporate ethics team is structured around six core areas: internal investigations, leniency agreements and remediation, enforcement defence, crisis management, and anti-corruption due diligence for M&A and capital markets transactions. The team handles high-stakes, often cross-border, mandates involving corruption, fraud, bid rigging, harassment, and environmental violations. Thiago Jabor Pinheiro, stands out for his experience in internal investigations, enforcement actions and corporate crisis management, often advising boards and board committees in response to allegations of corporate wrongdoings, including in relation to ESG issues. Thiago Sombra brings additional expertise in anti-corruption, public law, and regulatory investigations, while Marcel Ribas focuses on politically sensitive internal investigations and monitorships. Lucas Ribeiro supports clients with compliance programme assessments, due diligence, and enforcement proceedings.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Thiago Jabor always provides us with excellent service, offering both confidence and strong support in our decision-making process.'
- 'The firm’s team of lawyers has a valuable breadth of knowledge that goes beyond just technical expertise in the matters they handle.'
Key clients
- Meta
Work highlights
Supports Claranet in an internal investigation related to allegations of wrongdoing by its former CEO.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Other key lawyers
Thiago Jabor Pinheiro; Thiago Sombra; Marcel Ribas; Lucas Ribeiro; Luiza Cattley

