Johanna is a partner in Hengeler's dispute resolution group. She represents corporate clients in domestic and international arbitration proceedings, but also routinely handles cases before national courts. Johanna's work has a particular focus on technology and post M&A disputes. Her major clients include companies in the automotive and energy sector, as well as financial institutions.

Johanna has broad experience in international arbitration proceedings. Recent matters include advising a listed company in a large scale arbitration for damages after the acquisition of an enterprise in Germany or a US company in a technology related dispute with a Chinese distributor. Highlights of her past work include advising Deutsche Telekom AG in the US-$ multi-billion arbitral proceedings initiated by the Federal Republic of Germany in the matter of Toll Collect GmbH.

Johanna's current litigation practice includes defending major companies in mass claims proceedings, representing financial institutes in cum-ex related matters or industrial enterprises in energy related disputes. In the context of her dispute-related work, Johanna regularly advises clients on compliance issues and in cross-border investigations.

Johanna is an LCIA Court Member and a Board Member of the German Arbitration Institute (DIS). She is regularly acting as an arbitrator. Her competitors describe her as "efficient and good" (JUVE 2022/2023).


  • Admitted to bar 2008
  • Attorney-at-Law (New York) 
  • Humboldt-University of Berlin
  • New York University (LL.M.)