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Thais Matallo Cordeiro

Thais Matallo Cordeiro A woman with shoulder-length blonde hair. She is wearing a black and white wool blouse with long sleeves. She is standing with her arms crossed, looking straight ahead.

Advises on strategic legal issues of consumer relations for all market segments. Its preventive action includes consulting and preparation of legal opinions and legal opinions, as well as monitoring legislative initiatives on issues related to consumer relations. In the administrative area, it acts in the preparation and monitoring of recall, sponsorship of civil investigations, assessments, notifications and sanctioning procedures in general, in addition to the representation of clients before all consumer protection agencies, regulatory agencies and self-regulatory bodies, such as Conar. In the judicial sphere, it advises on actions of collective interest, actions for annulment, direct actions of unconstitutionality, incidents of resolution of repetitive demands (IRDR), repetitive resources, among others.

Recent acknowledgments

  • Chambers & Partners Brazil: Consumer Law (2021-2024)
  • Chambers Latin America: Consumer relations (2021)
  • Chambers Consumer law in Brazil: Contentious: Consumer relations (2021)
  • The Legal 500: Dispute Resolution: Litigation (2023)
  • Leaders League: Consumer Law (2022-2023)
  • Latin Lawyer 250: Litigation (2022)
  • Análise Advocacia 500: Consumer Law and in the banks, communication, construction and engineering, education, electronics, pension funds, oil and gas, specialized services and telecommunications sectors (2021); Civil, Consumer, Eletronic, Technology and in São Paulo (2022)
  • Análise Advocacia Mulher: Consumer Relations (2021); Civil, Consumer, and in the Automotive and Auto Parts, Banking, Communication and Entertainment, Eletronics, Building material and decoration and Environmental Services and Sanitation sectors, and in São Paulo (2022); Civil, Competition, Consumer, Labor, Banking, Electrical & electronics, Machinery & Equipment, Technology, and in São Paulo (2023)
  • IFLR - Americas Women in Business Law Awards: Civil Litigation


  • Pontifícia Universidade Católica de São Paulo (PUC-SP) – Doctorate in Diffuse and Collective Rights, ongoing
  • Câmara de Comércio França-Brasil – Training Course in Corporate Mediation, based on the technical evaluation of the faculty of the Centre de Médiation et d'Arbitrage de Paris - CMAP, 2017
  • Pontifícia Universidade Católica de São Paulo (PUC-SP) – Master's degree in Civil Procedure, 2016
  • Fundação Getúlio Vargas (FGV-SP) – Postgraduate in Business Law, 2007
  • Pontifícia Universidade Católica de São Paulo (PUC-SP) – Law Degree, 2005


  • Brazilian Bar Association - OAB
  • Counselor of the Brazilian Institute for the Defense of Competition, Consumption and International Trade (Ibrac)
  • Brazilian Institute for the Defense of Competition, Consumption and International Trade (Ibrac) - Director of Consumer Relations (2018-2021)
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