Leonie Hesse advises international and German clients on a wide range of public commercial law matters. She is a Senior Associate in the firm’s Antitrust and Competition Practice as well as the firm’s Public Policy and Legislative Affairs Group.

A key focus of Ms. Hesse’s practice is advising clients on matters relating to European public commercial law and EU administrative and constitutional law. Ms. Hesse has expertise in EU constitutional and administrative law and, inter alia, advises on matters of data protection, regulatory oversight of financial markets and bank resolutions. Ms. Hesse also counsels clients in European and German competition law, particularly on antitrust damages litigation.

While pursuing her legal education, Ms. Hesse worked for the Chair for Public Law, European Law and Public International Law at Helmut Schmidt University in Hamburg.


  • Advising and representing a global technology company on data protection law and dispute resolution with the German Federal Cartel Office, including representation in litigation proceedings before the EU Courts.
  • Advising an EU institution on European administrative law, bank resolution and data protection law, including representation in litigation proceedings before the EU Courts.
  • Advising and representing Deutsche Bahn AG in a dispute with public entities on the financing of cost increases of the Stuttgart 21 infrastructure project.
  • Advising and representing Deutsche Bahn AG on damages claims arising from the rail cartel.


  • Education

    • Second State Exam, Berlin Court of Appeals, 2018

    • First State Exam, Free University of Berlin, 2016

  • Admissions

    • Berlin

  • Languages

    • German

    • English

    • French

    • Spanish



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