Dr iur Olivier Mosimann > Kellerhals Carrard > Basel, Switzerland > Lawyer Profile

Kellerhals Carrard
Henric Petri-Strasse 35
P.O. Box 257
CH-4010 Basel
Olivier Mosimann photo

Work Department

  • International and domestic arbitration (counsel and arbitrator)
  • International and domestic litigation
  • Sports law


Dr. iur., LL.M., Attorney at Law, Partner


  • since 2019: Partner at Kellerhals Carrard, Basel
  • 2017-2018: Senior Associate at Kellerhals Carrard
  • 2015-2016: Associate in Arbitration Practice Group at LALIVE, Zurich
  • 2012-2014: Associate in Litigation/Arbitration Team at Homburger, Zurich
  • 2010-2011: Clerk at Civil Court of Basel-Stadt
  • 2009-2010: Junior Associate at Homburger, Zurich
  • 2008: Court Intern at International Chamber of Commerce (ICC), Paris
  • 2007-2009: Research and Teaching Assistant at Chair of Prof. Dr. Ingeborg Schwenzer
  • 2005-2006: Junior Assistant at Chair of Prof. Ingeborg Schwenzer


  • German
  • English
  • French


  • Swiss Arbitration Association (ASA)
  • ASA below 40
  • ICC Young Arbitrators Forum (ICC YAF)
  • Deutsche Institution für Schiedsgerichtsbarkeit DIS40
  • London Court of International Arbitration Young International Arbitration Group (LCIA YIAG)
  • International Centre for Dispute Resolution Young & International (ICDR Y&I)
  • Advokatenkammer Basel
  • Zürcher Anwaltsverband (ZAV; Passivmitgliedschaft)
  • Schweizerischer Anwaltsverband (SAV)


  • 2015: LL.M. with Certificate of Specialization in Law & Technology, University of California, Berkeley, School of Law (Boalt Hall)
  • 2011: Bar admission Basel-Stadt (admitted to all Swiss courts)
  • 2009: Dr. iur. (Ph.D.), University of Basel
  • 2006: lic. iur. (licentiate in law), University of Basel

Lawyer Rankings

Switzerland > Dispute resolution: arbitration

(Next Generation Partners)

Olivier MosimannKellerhals Carrard

Kellerhals Carrard has ‘good depth in the international arbitration space’, acting as counsel and arbitrator in domestic and international proceedings, particularly in the health, oil and gas, construction and sports sectors; clients include the International Olympic Committee, the World Anti-Doping Agency and the International Federation of Sport Climbing. Bernhard Berger and Olivier Mosimann jointly lead the group from Bern and Basel respectively; other key names include Martin Molina in Zurich and Geneva-based financial dispute specialist Jean-Cédric Michel. Isabelle Romy joined the group from MLL Legal in mid-2021.