Pia Hesse
Pia Hesse, LL.M.
Associate, Antitrust and Competition Law, International Trade Law
T +49 30 2148027 00
E pia.hesse@blomstein.com

Pia Hesse specialises in German and European antitrust law as well as in international trade law. She advises German and international clients in proceedings before the German and European courts, the European Commission and the Bundeskartellamt.

Languages: German, English, Spanish, French


  • Advising leading Chinese locomotive manufacturer CRRC Zhuzhou Locomotive Co., Ltd. (CRRC ZELC) on the merger control aspects of its acquisition of Vossloh Locomotives GmbH (Vossloh Locomotives).


Pia studied law at the University of Cologne and the Université d‘Auvergne with a focus on Public International and European Law and obtained an LL.M. from the University of Glasgow. She completed her legal traineeship (“Referendariat”) at the Higher Regional Court of Berlin, during which she also worked for the Legal Service of the European Commission. Her doctoral thesis deals with extraterritorial law enforcement measures in Public International Law (ongoing Ph.D. project).


  • Extraterritorial Law Enforcement in Areas of Limited Statehood: The Transnational Dimension of The Rule of Law, in: Hamid/Wouters (eds.), Rule of Law and Areas of Limited Statehood: Domestic and International Dimensions, 2021, p. 184-205
  • UN Security Council Resolutions as a Legal Framework for Multinational Military Operations, in: Geiß/Krieger (eds.), The ‘Legal Pluriverse’ Surrounding Multinational Military Operations, 2020, p. 267-286
  • Comment: Neither Sunken Vessel nor Blooming Flower! The Lotus Principle and International Humanitarian Law, in: Baade/Mührel/Petrov (eds.), International Humanitarian Law in Areas of Limited Statehood, 2018, p. 80-85