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Thomaz del Castillo Barroso Kastrup

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Thomaz del Castillo Barroso Kastrup

Lawyer licensed in Brazil and with a Master’s degree and experience as a foreign associate in the United States. Thomaz is a specialist and reference in insurance, reinsurance, health, financial services, and M&A. He has been advising local and foreign players in these sectors in Brazil for more than 20 years on regulatory and corporate advisory matters, especially around transactions, including M&A (global, regional and local), distribution contracts for insurance and other insurance products, purchase and sale of insurance portfolios and all types of corporate reorganizations. He conducted and participated in the most significant operations of this nature in Brazil and has authored several articles and publications on insurance law in Brazil and abroad.

Recent acknowledgments

  • Chambers Brazil – Insurance (2020-2023)
  • Chambers Latin America – Insurance (2017-2019)
  • Chambers Global – Insurance (2017-2023)
  • The Legal 500 – Insurance: Next Generation Lawyers (2014-2015; 2017-2018; 2021-2023)
  • Leaders League: Insurance & Reinsurance (2023)
  • Latin Lawyer 250 – Insurance & Reinsurance (2020-2023)
  • Euromoney - Expert Guides – Insurance & Reinsurance (2020-2022)
  • Best Lawyers in Insurance and Reinsurance (2019-2022)
  • AM Best – Recommended Insurance Attorneys (2020-2022)
  • Análise Advocacia 500 – Insurance (2017-2022)
  • Who’s Who Legal – Insurance & Reinsurance (2017-2022)
  • Who’s Who Legal Brazil – Insurance & Reinsurance (2017-2022)


  • Columbia Law School, Columbia University, US – LL.M in Corporate Law, Securities & Insurance Regulation (appointed Harlan Fiske Stone Scholar), 2008
  • Escola Nacional de Seguros (ENS), Brazil – Postgraduate and Specialization in Insurance, 2003
  • Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Brazil – Bachelor of Laws, 2001

Relevant experience

  • Cleary Gottlieb Steen & Hamilton LLP (NY Office) – Foreign Associate – 2008-2009


  • Member of the International Insurance Law Association (AIDA)
  • Member of the Insurance and Reinsurance Committee of the International Bar Association (IBA)
  • Member of the Insurance and Reinsurance Committee of the British Chamber of Commerce and Industry in Brazil (BRITCHAM)
  • Member of the Insurance and Reinsurance Committee of Instituto de Advogados de São Paulo (IASP)
  • Member of the Columbia University Alumni Representative Committee (ARC)
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