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Anna Masser


Frankfurt am Main

Image of Anna Masser
Anna Masser


Frankfurt am Main

Anna heads the international arbitration practice in Germany. She focuses on international commercial arbitration and advises on all stages of dispute resolution. 

Anna acts as lead counsel in international commercial arbitrations, in particular in the energy, plant engineering and renewable energies sectors. She also advises on disputes under long-term contracts in general. She has experience of conducting arbitrations under a wide range of rules including those of the ICC, SCAI, DIS, LCIA, SCC, as well as in ad hoc arbitrations also under UNCITRAL rules. She was qualified in Switzerland until 2016 and advises on German and Swiss law issues. She equally deals with issues relating to the recognition and enforcement of arbitral awards and judgments and is regularly appointed as arbitrator. Anna is a CEDR Accredited Mediator.

Anna has been recognised by Who’s Who Legal as a Future Leader from 2017 to 2020, as “one of Europe’s top names”, and as an “efficient and pragmatic lawyer who is great to work with”. Additionally, she is praised as “very analytic” with “excellent strategy skills”. Since 2021, Who’s Who Legal ranks her as global leader in arbitration and she is also ranked by Chambers for her specific experience in Switzerland. Legal 500 Germany mentions her as a key contact. She serves as a member of the ICC Commission on Arbitration and ADR. Anna is a member of DIS, ASA and VIAC, an immediate past Global Advisory Board Member of ICDR Y&I and has led the German DIS 40 group for three years.

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Frankfurt am Main

Allen & Overy LLP
Bockenheimer Landstraße 2
60306 Frankfurt am Main

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Admitted as German Rechtsanwalt, 2007

Admitted to Swiss bar, 2013-2016


Second State Exam, Schleswig Holstein, 2007

First State Exam, University of Heidelberg, 2004

Published work

  • Masser, A. Choice of Law Clauses in Arbitration Agreements, Arbitration in Switzerland – The Practitioner’s Guide, ed. Arroyo (1st ed. 2013, 2nd ed. to be published in 2018)
  • Masser, A. Commentary of Art. 28 Swiss Rules, Arbitration in Switzerland – The Practitioner’s Guide, ed. Arroyo (1st ed. 2013, 2nd ed. to be published in 2018)
  • Masser, A. Commentary of Arts. 34 to 37 Swiss Rules, Co-Author with Dr Marc Veit, eds. Zuberbühler / Müller / Habegger, Swiss Rules of International Arbitration, 2nd ed., 2013
  • Masser, A. Die revidierte Schweizerische Schiedsgerichtsordnung (Swiss Rules), Co-Author with Dr Philipp Habegger, IPRax 5/2012, p. 459 et seq
  • Masser, A. Criminal Offences During the Arbitration – False Testimony, Fraud: What Should Arbitrators Do?, Dutch-Flemish Mediation and Conflictmanagement Journal, 2011, pages 32-42
  • Masser, A. The UNCITRAL Notes on Organizing Arbitral Proceedings – Time for an Update? Co-Author with Dr Philipp Habegger, Liber Amicorum Eric Bergsten, International Arbitration and International Commercial Law: Synergy, Convergence and Evolution, eds Kröll, Mistelis, Rogers, Perales Viscasillas, Alphen a/d Rijn 2011, pages 207-223
  • Masser, A. May Arbitral Tribunals Seated in Switzerland and Applying German Law or the CISG Estimate Quantum? - ASA Bulletin Volume 39, No. 3 (September 2021), Co-Author with Eileen Löbig, Kluwer Law International, 2021 
  • Masser, A. The Guide to Evidence in International Arbitration - First Edition, Co-Author with Lucia Raimanová, Kendall Pauley and Peter Plachý, Global Arbitration Review, 2021, chapter 16 
  • Masser, A. Does the CISG Apply to Arbitration Agreements? ICC Dispute Resolution Bulletin | 2021 Issue 1, Co-Author with Dr Nadja Harraschain, International Chamber of Commerce (ICC), 2021, pages 36-38 
  • Masser, A. Commentary of Federal Supreme Court Decision xxx in SchiedsVZ 2021, 97 – Applicability of the CISG to the arbitration agreement (in German), Co-Author with Dr. Nadja Harraschain