Lawyers

Simon Gabriel specializes in representing parties in complex disputes and regularly sits as arbitrator. He has participated in over 100 international arbitrations and numerous state court litigations and is considered as “Thought Leader” in international arbitration by Global Arbitration Review and Who’s Who Legal (2019, 2020, 2021).

Simon is regularly appointed as arbitrator under ICC Rules, Vienna Rules, DIS Rules, SCC Rules, Swiss Rules, and ad hoc rules. He has acted as party representative under the same sets of rules with places of arbitration in Switzerland, Austria, Germany, and France. Before founding Gabriel Arbitration in 2012, Simon Gabriel was a member of the dispute resolution group of a major international law firm.

Simon studied law at the Universities of Berne (CH) and British Columbia in Vancouver (CDN). He holds a Ph.D. from the University of Lucerne (CH) and an LL.M. in Advocacy from the University of Strathclyde (UK). University of Lucerne has appointed Simon as lecturer for “international arbitration” (2016).

Simon is the President of the ICC Swiss Commission of Arbitration and ADR (since March 2023) and Swiss delegate in the ICC Commission of Arbitration and ADR in Paris. Moreover, he is acknowledged and listed as arbitrator of ICC Switzerland, Vienna International Arbitral Centre, Russian Arbitration Association and Asian International Arbitration Centre.

• CV Simon Gabriel (PDF)
• Simon Gabriel WWL Thought Leader Interview (PDF)
• Global Arbitration Review (GAR) recognizes law firm opening (PDF)

Axel Buhr specializes in international arbitration and state court litigation cases.

Since 2009, Axel has participated in numerous arbitration proceedings as arbitrator and counsel. Axel is experienced in handling cases under Swiss, ICC, DIS, VIAC and ad hoc arbitration rules.

In addition to his arbitration work, Axel represents clients in state court litigations, in particular international commercial disputes.

Axel holds bar admissions in Germany (Karlsruhe, 2009) and Switzerland (Zurich, 2013).

In 2003, Axel graduated from the University of Heidelberg (Germany). After his traineeship (Referendariat) at the district court of Constance (Germany), Axel passed the German bar exam in 2005.

From 2006 to 2009, Axel worked as a research assistant at the University of Lucerne and specialized in conflicts of law. In 2009, he received a doctorate from the University of Lucerne. In 2010, Axel started teaching at the University of Lucerne. He regularly publishes on Swiss arbitration and procedural issues.

From 2009 until 2017, Axel was a member of the dispute resolution team of an international law firm in Zurich. In 2017, Axel joined Gabriel Arbitration as a partner.

Since 2017, Axel was repeatedly recognized as a “future leader” and “recommended lawyer” in the field of arbitration by Who’s Who Legal and Lexology.

• CV of Axel Buhr (PDF)
• Article in Global Arbitration Review (PDF)

Andreas Schregenberger specializes in representing parties in complex arbitration cases and acts as arbitrator. His work focuses on international dispute resolution matters.

Since 2013, Andreas has represented international businesses, organizations and individuals in a broad range of disputes with a particular focus on construction, engineering, energy, banking, and insurance. He acted as arbitrator, counsel and secretary in over 35 arbitration proceedings involving up to over 150 million Euros of amount in dispute. Andreas was involved in cases under ICC, Swiss, VIAC, LCIA, ISTAC and ad hoc arbitration rules involving various legal systems.

Andreas studied law at the University of Zurich (MLaw UZH) and holds an LL.M. degree from Georgetown University Law Center (Fulbright Fellow). He was admitted to the Swiss bar in 2011 and worked in business law firms in Zurich, Vienna and Washington, D.C.

Andreas is a member of ASA, ArbAut, and the Viennese Attorney's Society UNION. He regularly publishes and speaks on topics in the field of international arbitration. Andreas speaks German, English and French.

• CV of Andreas Schregenberger (PDF)

Daniela Frenkel’s main practice areas are arbitration and litigation, debt enforcement and bankruptcy law as well as commercial and contract law. She regularly represents parties before state courts and arbitral tribunals under various rules in complex domestic and international cases across a wide range of industries. She also serves as arbitrator and acts as a legal secretary to arbitral tribunals. She has not only special expertise in arbitration-related litigation (including setting-aside proceedings, enforcement and interim relief) but also in asset tracing and freezing. Further, she has broad experience in representing clients in debt enforcement and bankruptcy proceedings.

Daniela graduated from the University of Zurich (lic. iur., 2007; Dr. iur., 2012) and the University of San Diego (LL.M. with a specialization in Business and Corporate Law, 2014). Her PhD thesis on freezing injunctions was distinguished with the prestigious Walther Hug Award. In 2010, she was admitted to the Swiss bar, and since 2011, she has worked in business law firms in Zurich.

In addition to her work as a legal counsel, Daniela gained broad experience as research and teaching assistant to Prof. Meier at the University of Zurich in the fields of litigation, arbitration, debt enforcement and bankruptcy law, to Prof. Müller at the University of Lucerne in the field of commercial law and to Prof. Hettich at the University of St. Gallen in the field of public business law.

In 2020, 2021, and 2022, Daniela was recognized as "Rising Star" in Litigation by Euromoney's Expert Guide. Further, in 2022, WWL listed her as Future Leader in Commercial Litigation.

• CV of Daniela Frenkel (PDF)

Roxane Schmidgall specializes in international arbitration where she acts as party representative, sole arbitrator, and secretary to arbitral tribunals. She has taken part in several arbitration proceedings most of which were conducted under the Swiss Rules or the ICC Arbitration Rules. Roxane also represents clients in state court litigation, including enforcement and attachment proceedings as well as proceedings for international judicial assistance.

Roxane studied law at the University of Lucerne. She was admitted to the Swiss bar in 2014 and practiced in arbitration and litigation ever since. She holds a teaching assignment at the University of Lucerne for a course in the fields of international arbitration and the international sale of goods (since 2020).

• CV of Roxane Schmidgall (PDF)

Audrey Duffner is specializing in international arbitration. She is experienced in arbitration proceedings conducted under the Swiss and ICC Rules.

Audrey holds a bar admission in Germany (Hamburg, 2021). She is registered pursuant to Article 28 BGFA in the public list of citizens from EU or EFTA member states who regularly represent parties before judicial authorities in Switzerland, under their original professional title (Zurich, 2023).

Audrey studied law at the Humboldt University of Berlin (Germany). After completing her legal clerkship at the Higher Regional Court of Bamberg (Rechtsreferendariat), she passed the German bar exam in 2020.

From 2021 until 2022, Audrey was an Associate of an international commercial law firm in Hamburg. Audrey joined Gabriel Arbitration in 2023.

• CV of Audrey Duffner (PDF)