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Chambers Global 2014

“very bright and capable lawyer who does a great job for her clients”

Who's Who Legal Commercial Litigation 2015

“key adviser“ in complex multi-jurisdictional matters”

Who's Who Legal Commercial Arbitration 2016

“immaculate in her thinking and presentation”

Chambers Europe 2017

“a very experienced practitioner”

Chambers Europe 2017

“I have a lot of respect for her: she is outstanding”

Chambers Europe 2017

“strong, high-level and technical lawyer who has a big international following”

Who's Who Legal 2018

“an obvious inclusion”

Who's Who Legal Construction 2019

“exceptionally well versed in any type of construction dispute”

Who's Who Legal Litigation 2019

“she is a first-rate lawyer who excels when it comes to representing clients in high-value construction and energy-related disputes”

Who's Who Legal Arbitration 2019

“she continues to be regarded as an “obvious inclusion” in the listings and is equally well regarded by sources for her work as arbitrator and counsel”

Who's Who Legal Arbitration 2019

“she offers a broad array of industry expertise covering energy, construction and distribution agreements among other matters”

Who's Who Legal Construction & Real Estate 2019

“she is a distinguished arbitration specialist in the construction field”

Who's Who Legal Construction & Real Estate 2019

“she has significant experience acting as both counsel and arbitrator in a variety of multi-jurisdictional disputes”

Who's Who Legal Litigation 2019

“a very well-known dispute resolution lawyer”

Who's Who Legal Litigation 2019

“she is dogmatically thorough and she enjoys an excellent reputation for her work in the energy and construction sector”

Chambers Europe 2019

“very accomplished”

Chambers Europe 2019

“she's a step ahead”

Chambers Europe 2019

“expert in civil law arbitration”

Who's Who Legal Arbitration 2020

“a high flyer”

Who's Who Legal Arbitration 2020

“only have praise for”

Who's Who Legal Arbitration 2020

“never fails to impress – neither on the law, nor on inter-personal skills as an arbitrator”

Nathalie Voser

Katja Vontobel


Nathalie Voser is a partner in Schellenberg Wittmer's Dispute Resolution Group. She has acted as arbitrator and counsel in a vast number of cases. Her expertise includes Investor-State disputes, construction / infrastructure projects, civil engineering and energy related projects, oil and gas, pharmaceutical, and automotive industries.


  • Presiding in DIS Rules arbitration regarding two German companies in a dispute over price adaptation under a long-term gas storage agreement.
  • Representing an Israeli company (and its international parent company) as EPC contractor of a large scale solar thermal power station in an ICC arbitration regarding a dispute against one of its subcontractors concerning mechanical, electrical and piping erection work.
  • Representing a German company in ICC arbitration against a CIS state seated company in a dispute under a series of supply and engineering contracts related to the design, delivery of equipment and related ancillary services concerning a ferrochrome smelting facility.


Professional Experience
Private Lecturer, University of Basel
Partner at Schellenberg Wittmer
Part-time lecturer, Universities of Basel, St. Gallen and Zurich
Associate at Schellenberg Wittmer
Assistant to Professor Frank Vischer, University of Basel
Education and Admission
Professor (Titularprofessor), University of Basel
Venia docendi, University of Basel
LL.M., Columbia University New York
Dr. iur., University of Basel
Bar Admission in Switzerland
lic. iur., University of Basel
Additional Professional Activities
  • Member / Vice President of London Court of International Arbitration (LCIA)
  • Board member Swiss Arbitration Association
  • Member of the Steering Committee of the Vienna International Arbitration Chamber (VIAC)
  • Swiss delegate in the ICC Arbitration and ADR Commission Paris
  • Member of the SIAC Users' Council and HKIAC Panel of Arbitrators

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