LAWYER PROFILE
Barbara Rosenberg

Barbara Rosenberg

Brazil 2026

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Ranked in 1 practice area

Contributions and articles

1 Articles, Press releases, highlights

About

Provided by BMA – Barbosa, Müssnich, Aragão

Brazil: Contentious

Practice Areas

Competition Law

Sports and Entertainment

Career

Barbara Rosenberg is one of BMA’s Competition and Antitrust partners. She acts for companies involved in mergers and acquisitions in notifications and other proceedings before Brazil’s competition authority, CADE, and represents clients in investigations of anticompetitive conduct. She also advises on competition compliance matters and in reviewing commercial practices. Barbara has been involved in the main M&A transactions in Brazil over the last decade.

Barbara has exceptional experience acting for companies in approval of mergers and acquisitions by CADE, Brazil’s competition authority, and in representing clients in investigations into anticompetitive conduct, including cartels. She also advises on competition compliance matters, and assists business in reviewing their commercial practices to ensure conformity with competition laws.

Barbara has been involved in the main M&A transactions in Brazil over the last decade, in both value and complexity. Her clients include a wide range of national and international companies doing business in various markets, such as retail, pharmaceuticals, technology, chemicals, electronics, food and beverages, and in the education, aviation, logistics and infrastructure sectors.

She was part of the Brazilian federal competition authority for three years, from 2003 to 2005, as Director of the Economic Protection and Defense Department of the Economic Law Secretariat (SDE - Secretaria de Direito Econômico), attached to the Ministry of Justice. She was an associate with Cleary Gottlieb Steen & Hamilton LLP in the United States. Barbara lectured in Competition Law, International Trade, and Intellectual Property in continuing education courses at the Getúlio Vargas Foundation Law School from 2004 to 2012.

She is a frequent speaker at events related to her area of practice, and contributes to publications on competition and antitrust law.

Barbara is a member of the BMA Women and BMA Diversity Committees.

Chambers Review

Provided by Chambers

Chambers Brazil: Contentious

Competition/Antitrust - Brazil

Star Individual
Star Individuals

Individual Editorial

Star individual Barbara Rosenberg has built an impressive reputation as a leading practitioner in the Brazilian competition area. She is renowned for handling complex merger control mandates for high profile national and international market players from across several industry sectors, with remarkable sophistication and expertise.

Strengths

Provided by Chambers

  • Barbara Rosenberg is an exceptional professional. She combines technical depth with strategic vision and pragmatism. She is extremely available, involved in all stages of the work, and has great leadership and networking skills.

    Competition/AntitrustChambers Brazil: Contentious
  • Barbara is a point of reference in competition and antitrust law, not only in Brazil but internationally.

    Competition/AntitrustChambers Brazil: Contentious
  • Barbara Rosenberg has outstanding relationship‑building skills and navigates interactions with the authorities exceptionally well. She is highly recognised in the market and carries significant influence.

    Competition/AntitrustChambers Brazil: Contentious

Ranked Individuals at BMA – Barbosa, Müssnich, Aragão (62)

Brazil

Articles, Highlights and Press Releases

1 item provided by BMA – Barbosa, Müssnich, Aragão

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