Claudia Annacker is a partner based in the Paris office.
Ms. Annacker’s practice focuses on international litigation and arbitration and public international law matters. She is widely published on various aspects of public international law and European law and regularly lectures as an adjunct professor at the University of Vienna. She has also served as an arbitrator in international arbitrations.
Recent significant matters include representation of the Russian Federation in three parallel arbitrations under the Energy Charter Treaty, of the Republic of Slovenia before the European Court of Human Rights, of ArcelorMittal in an arbitration under the Netherlands-Czech Republic bilateral investment treaty, and of an Austrian investor in an arbitration under the Austria-Croatia and Austria-Yugoslavia bilateral investment treaties. She has also represented the Bank for International Settlements in proceedings before an arbitral tribunal established pursuant to Article XV of the Agreement signed at the Hague on January 20, 1930 commenced by the Bank’s former private shareholders seeking additional compensation for the mandatory redemption of their shares.
Ms. Annacker is recognized as a leading public international law lawyer by
Chambers Global and was named in
Global Arbitration Review's "45 Under 45" guide to the leading figures of the "young" international arbitration bar.
Ms. Annacker joined the firm in 1998, became counsel in 2005, and became a partner in 2009. From 1998 to 2001, she was resident in the Brussels office, and from 2001 to 2004 in the New York office. Ms. Annacker received a Ph.D. degree,
summa cum laude, from the University of Vienna in 1992. She received a venia legendi and docendi for public international law from the University of Vienna in 1997.
Ms. Annacker is a member of the Bars in Austria and Paris, and a member of the International Law Association and the German Society of International Law. Her native language is German; she is fluent in English and proficient in French.