Marnix has 25 years of experience as counsel on dozens of major disputes in international arbitration and litigation across many sectors. He acts as a trusted advisor to clients on their arbitration and cross border litigation challenges. Since 2010, Marnix has been recognised by the major legal guides as a leading arbitration and litigation practitioner in the Netherlands, and he is the only Dutch lawyer ranked by Chambers in Band 1 for both arbitration and litigation.

Exceptionally committed, with very strong ethical values and excellent performance both on the strategic level and in execution

Client feedback in Global Arbitration Review


  • Profession

    Advocaat, admitted to the Bar in 1997

  • Languages

    Dutch, English, French

  • Education

    Leiden University

    Institut d'Etudes Politiques de Paris

    Magdalen College, Oxford University (MJur)

  • Additional positions

    Vice-President of the ICC International Court of Arbitration since 2015, and a member of the ICC court since 2006

    Co-chair of the ICC Commission’s Task Force on Emergency Arbitration

    An active member of the ICC’s Institute of World Business Law, the ICC’s Commission on Arbitration, ICCA and the IBA Arbitration Committee.

Personal Assistant