Danon, Douma & Kofler

About Danon, Douma & Kofler

Danon, Douma & Kofler was founded as an independent network by Professors Robert Danon from Switzerland, Sjoerd Douma from the Netherlands, and Georg Kofler from Austria.

Our fields of expertise include: tax treaty law (including its relation with investment law), public international law, tax policy, all fields of European primary and secondary tax law (including fundamental freedoms, State aid, directives, such as the anti-tax avoidance directives), international tax, commercial and investment law arbitration, as well as business and individual taxation in general in Switzerland, the Netherlands, and Austria. We have vast academic and practical experience in those fields, with past work including expert witness reports for courts, scientific support in litigation and negotiation, and international arbitration.

It is our mission to support governments, tax administrations, taxpayers, advisors and lawyers with highest quality international tax expertise that is clear, thorough and independent.

We remain fully independent from each other and are instructed separately. Depending on the subject matter of the assignment, we may however act jointly, providing our expertise in a coordinated and complementary way.

We do not provide classical prospective tax advice but rather focus on expert opinions, conflict resolution and expert counsel services in the context of disputes, arbitration proceedings, transactions or restructurings, domestic and international alike.

Team by function

Based on 1 public job profiles as of 19 September 2026.

• Founder / Owner1