Flávia Chiquito Dos Santos

Flávia Chiquito dos Santos leads the Competition and Antitrust Law practice at Tauil & Chequer in association with Mayer Brown. With over 20 years of experience, she works on investigations of anticompetitive conduct, merger control, and strategic counseling on competition matters.

Flávia advises clients in administrative proceedings before the Administrative Council for Economic Defense (CADE), including investigations related to cartels and other anticompetitive practices, as well as competition analysis of mergers and acquisitions, negotiation of leniency agreements and cease-and-desist commitments, and representation of interested third parties in competition proceedings.

She counsels and represents domestic and multinational companies across various sectors on complex antitrust matters, including administrative investigations, preventive analysis of competition risks, and implementation of antitrust compliance programs. Flávia also provides strategic advice in sensitive situations involving competition authorities, supporting clients in defining legal and regulatory strategies in investigations and transactions with potential competition impacts.

Flávia has advised:

• Domestic and multinational companies in cartel investigations and other anticompetitive practices conducted by CADE.
• Clients in negotiating leniency agreements and cease-and-desist commitments before competition authorities.
• Companies in notifications and competition analyses of mergers and acquisitions submitted to CADE.
• Interested third parties, complainants, and interveners in administrative merger control proceedings.
• Companies in structuring and implementing competition compliance programs and internal trainings.
• Clients in preventive counseling on competition risks in commercial and contractual strategies.

• Recognized in Competition Law – Chambers and Partners
• Recognized in Competition – Who's Who Legal
• Recognized in Competition and Antitrust – Best Lawyers

• Universidade de São Paulo, Master's Degree in Economic Law
• Pontifical Catholic University of São Paulo (PUC-SP), Bachelor of Laws
• King's College London, Visiting Research Student Program
  
  • Researching cartel penalties under the supervision of Richard Whish
• George Washington University, Summer Course: U.S. Legal Methods - Introduction to U.S. Law

• Brazil

• Portugiesisch
• Englisch

• Institutional leadership in various roles at the Brazilian Institute for Competition, Consumer, and International Trade Studies (IBRAC), including Director of Institutional Relations (2024–2025 and 2026–2027), Publications Director (2022–2023), Cartel Coordinator in the Competition Division (2020–2021), and host of IBRACCast, the institution's podcast (2022–2025)
• Non-Governmental Advisor (NGA) at the International Competition Network (since 2007)
• Active member of the Competition and Economic Regulation Studies Commission of the Brazilian Bar Association – São Paulo Section and the Competition Defense Commission of the Federal Council of the Brazilian Bar Association
• Participant in the XX PINCADE – Administrative Council for Economic Defense Exchange Program (2005)
• Speaker at national and international events and guest lecturer in undergraduate, graduate, extension courses, and study groups at universities