Guilherme Ribas

Guilherme Ribas
Rua Borges Lagoa, 1328
São Paulo
+55 11 5086 5198


Who's Who Legal Competition: Lawyers

Guilherme Ribas specialises in antitrust litigation and counselling across a variety of industries, including air and land transportation, food and beverage, plastics, textile, telecoms, internet, technology, oil and gas, mining, and energy. He currently focuses on cartel investigations, merger filings and antitrust compliance. He has an in-depth knowledge of Brazilian antitrust laws and practice. Prior to joining Mundie e Advogados, where he heads its antitrust practice, Guilherme Ribas worked as an antitrust lawyer in other major Brazilian law firms and was head of department of the Secretariat of Economic Law (SDE) of the Ministry of Justice, where he coordinated the first dawn raids ever carried out in Brazil and helped to prepare the Brazilian government antitrust compliance guidelines.

Mr Ribas was educated at the University of São Paulo, where he gained a PhD in administrative law (thesis: cartel proceedings and evidence) and an LLM in commercial law (dissertation: tying arrangements, intellectual property and antitrust). Mr Ribas is the publications officer of the Brazilian Antitrust Institute (IBRAC) and member of the antitrust committee of the Brazilian Bar (São Paulo section). He is the author of several articles and books relating to antitrust. He has been consistently recognised by well-known legal market research publications, such as Chambers Latin America, The Legal 500, Best Lawyers and Expert Guides: Guide to the World's Leading Competition & Antitrust Lawyers/Economists

WWL says: Guilherme Ribas has a "deep knowledge of the antitrust environment, both in Brazil but also in foreign jurisdictions", say sources. He has a "very proactive and business-oriented approach", with expertise in merger control and cartel matters.

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