Introduction
Sebastian helps clients resolve high-stakes commercial disputes through litigation, arbitration and alternative dispute resolution across a wide range of industries.
Dr Sebastian Tetzlaff advises and represents clients in disputes before the national courts, in arbitration and alternative dispute resolution. He focuses on banking, commercial, healthcare and life sciences, and ESG. He has experience in DIS arbitrations, global enforcement of arbitral awards and managing complex mass proceedings. He also handles damages and warranty claims, product recall disputes, shareholder resolution challenges and plant engineering and energy disputes, and advises healthcare stakeholders on regulatory matters. His clients include banks, investment firms, international corporations, industrial and food manufacturers, and energy companies.
Sebastian studied law, focusing on corporate and restructuring law, and business administration at EBS University of Business and Law in Wiesbaden (LL.B., M.A.), including a semester at University College Dublin, and earned his Dr iur from the University of Potsdam. He completed his legal clerkship at the Hanseatic Higher Regional Court in Hamburg, having gained experience at Latham & Watkins and Noerr. He has practiced law since 2021, first as a senior associate at Noerr and most recently as counsel at Spangenberg. In 2022–23, he lectured on enforcement law at Alpmann Schmidt.
Sebastian's publications include his dissertation on Sections 299a and 299b of the German Criminal Code (Nomos, 2020) and articles on forum shopping under Article 7 Rome II in climate cases (RIW 2022), the ECtHR climate ruling (RAW 2024) and digital dispute resolution in Germany (LTZ 2026). He is a member of the German Arbitration Institute (DIS).Best Lawyers and Handelsblatt named him one of the "Ones to Watch" in 2026.