About Leonie
Leonie Hesse: Legal Counsel Specializing in European Public Commercial Law
Leonie Hesse is a highly experienced legal counsel providing strategic guidance to international and German clients facing complex matters within the realm of public commercial law. As a key member of the firm’s Antitrust and Competition Practice and the Public Policy and Legislative Affairs Group, Ms. Hesse brings a deep understanding of European regulatory landscapes and a proven ability to navigate intricate legal challenges. She is particularly recognized for her expertise in advising clients on matters of significant consequence, including those involving data protection, regulatory oversight of financial markets, and the resolution of bank insolvencies.
Ms. Hesse’s focus centers on European public commercial law and EU administrative and constitutional law, offering a robust legal foundation for businesses and organizations operating within these critical areas. Her comprehensive knowledge allows her to effectively counsel clients through a wide range of issues, from antitrust litigation and competition law concerns to navigating the complexities of regulatory compliance.
A cornerstone of Ms. Hesse’s practice lies in her expertise in EU constitutional and administrative law. She possesses a sophisticated grasp of the legal frameworks governing data protection, empowering her to advise clients on adherence to stringent regulations and mitigation of potential risks. Furthermore, she provides critical support in the oversight of financial markets and the management of bank resolutions, ensuring that clients remain compliant and protect their interests during periods of significant market volatility and potential crisis.
Recognized as a leading legal professional, Ms. Hesse also offers specialized counsel in European and German competition law, with a particular emphasis on antitrust damages litigation. Her experience in this domain allows her to develop robust defense strategies for clients facing allegations of anti-competitive behavior, safeguarding their market positions and mitigating potential financial repercussions. She consistently assists clients in understanding and responding to complex antitrust investigations and litigation.
During her legal education, Ms. Hesse’s commitment to public law was further solidified through valuable work experience at the Chair for Public Law, European Law and Public International Law at Helmut Schmidt University in Hamburg. This experience provided her with a strong theoretical foundation and practical insights into the legal principles governing these areas, enhancing her ability to provide tailored and effective solutions to her clients’ needs. Her background equips her with a unique blend of academic rigor and real-world application, setting her apart as a trusted legal advisor.
Key Practice Areas:
- Competition / Antitrust Law
- Public Law
- Data Protection Law
- Financial Market Regulation
- Bank Resolution
Education & Credentials:
- Experience at the Chair for Public Law, European Law and Public International Law at Helmut Schmidt University in Hamburg
- Strong foundation in EU Constitutional and Administrative Law
- Specialized expertise in antitrust damages litigation
Awards & Recognition:
Recognized: Competition / Antitrust Law, Recognized: Public Law, Recognized Since: Recognized in Best Attorney USA since 2025
Affiliations:
Leonie Hesse is dedicated to providing proactive and strategic legal solutions for a diverse clientele, consistently delivering results and upholding the highest standards of legal expertise. Her commitment to understanding the nuances of public commercial law, coupled with her practical experience, makes her a valuable asset for any organization navigating the complex legal landscape of Europe.
To learn more about how Ms. Hesse can assist your organization, please contact her directly to discuss your specific legal needs. We are confident that her deep understanding and dedication will provide you with the robust legal support you deserve.
