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Amadeu Ribeiro

Partner

US-LatAm Practice Group Regional Co-Leader, Regulatory and Antitrust/Compliance

US-LatAm Practice Group Regional Co-Leader, US-Brazilian Initiative

Amadeu is a prominent figure in the competition and antitrust area.
— Competition/Antitrust, Chambers, (2023)
New YorkDLA Piper Brazil
About

Amadeu Ribeiro has more than 25 years of experience advising clients on complex cross-border antitrust matters and investigations, including merger review cases, cartel, bid-rigging and abuse of dominance investigations. Over his career, Amadeu has advised clients from various sectors, including aviation, automotive, energy and natural resources, food and beverage, life sciences, and technology.

As a dual-licensed attorney active in both the United States and Brazil, Amadeu also serves as a trusted advisor to Brazilian companies with their cross-border legal matters in the Americas, advising them on matters ranging from complex transactions and market entry to compliance and regulatory issues.

Chambers 2023 ranks Amadeu as an "eminent antitrust practitioner." In 2021, the American Bar Association awarded him with the "Outstanding Performance Award." Amadeu is also ranked as a leading antitrust practitioner by virtually all other major legal publications, including Legal 500, Global Competition Review, Euromoney, LACCA, Latin Lawyer 250, and Who's Who Legal.

Amadeu is part of the leadership of the American Bar Association – Antitrust Law Section and the Vice-President of the Brazilian-American Chamber of Commerce in New York. He is also an adjunct professor at the Fordham University School of Law in New York.

Areas of FocusLitigation, Arbitration and InvestigationsMergers and AcquisitionsRegulatory and Government AffairsEnergy and Natural ResourcesLife SciencesTechnology
Bar admissionsNew YorkBrazil
Education
  • LL.M., Fordham University, School of Law
    cum laude
  • J.S.D., University of São Paulo
  • LL.B., University of São Paulo

EXPERIENCE

  • Advised S&P Global in its agreement to acquire the Automatic Identification System (AIS) data services business of ORBCOMM Inc. The acquisition will strengthen S&P's supply chain and maritime offerings
Languages
  • German
  • Portuguese
  • Spanish

AWARDS

Chambers Brazil

  • Brazil: Competition & Antitrust, (2012 – 2023) 

The Legal 500 United States

  • Recommended, Cartel, (2024)

The Legal 500 Latin America

  • Recommended, Latin America: International Firms, Corporate and M&A, (2024)
Additional Recognitions

Leaders League

  • Highly Recommended, Brazil: Capital Markets, Best International Law Firms, (2025)
  • Recommended, Brazil: Mergers & Acquisitions, Best International Law Firms, (2025)

Best Lawyers

  • Ones to Watch in America, Antitrust Law, (2025)

LACCA

  • Approved, Antitrust & Competition, (2024)
  • Recognized, Antitrust & Competition, (2015, 2021 – 2023)
  • Thought Leader, Antitrust, (2019 – 2020, 2023)

Latin Lawyer 250

  • Recognized, Antitrust and Competition, (2012 – 2023)

Who's Who Legal Brazil

  • Recognized, Competition, (2014-2023)
  • Thought Leader, Competition, (2021)

Who's Who Legal US

  • Thought Leader, Competition, (2022)

Who's Who Legal Global

  • Recognized, Competition, (2021 – 2022)

American Bar Association

  • Recipient, Outstanding Performance Award, (2021)

Publications

  • Co-author, "Merger Control in Brazil – What to Have in Mind in the Context of a Multi-Jurisdictional Transaction," (June 2023)
  • Co-author, "Ethics Issues in Internal Antitrust Investigations in Brazil," (March 2023)
  • Author, "Competition Law and Policy in Brazil: 2022 Retrospective and New Perspectives," (March 2023)
  • Co-author, "Competition Law Treatment of Joint Ventures - A Jurisdictional Guide," (November 2022)
  • Co-author, "Competition Law and Policy in Brazil: New Developments," (June 2022)
  • Co-author, "German Supply Chain Law Requires Companies to Adopt Due Diligence Procedures," (June 2022)
  • Author, "Brazilian competition law: trends and perspectives for 2022," (February 2022)

Seminars

  • Moderator, "Rule of Law and Legal Certainty in Investments in Brazil," Brazil Summit, Brazilian-American Chamber of Commerce, (April 2025)
  • Panelist, "Merger Control in the Americas," DLA Piper Webinar, (March 13, 2025)
  • Speaker, "The Nuts & Bolts of Vertical Restraints in Latin America," International Committee of the Antitrust Law Section, American Bar Association, (November 20, 2024)
  • Speaker, "Current Challenges in Multi-Jurisdictional Reviews," Antitrust in the Americas, (June 2023)
  • Speaker, "Canada Launches Employer Cartel Offences; Who's Next?" Antitrust Law Section, American Bar Association, (May 2023)   
  • Speaker, "Ethics & Compliance in Global Investigations," 71st Annual Antitrust Spring Meeting, Antitrust Law Section, American Bar Association, (March 2023)

Media Mentions

PODCASTS

Memberships

  • American Bar Association, Antitrust Law Section
    • Co-chair, Media & Technology Committee
    • Vice-chair, International Comments & Policy Committee
  • Brazilian-American Chamber of Commerce in New York
    • Vice-president and Member, Executive Committee
    • Chair, Investing in Brazil Committee

My latest insights

Podcast

Brazil: A conversation on the landscape of opportunities ahead

14 June 2024 .1 minute read

News

DLA Piper advises S&P Global in its agreement to acquire ORBCOMM's Automatic...

28 April 2025 .2 minute read

Publication

Juntos

27 March 2025 .10 minute read

View All

Connect

Phone

+1 212 335 4880
(Work, New York)
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