Guillaume Tattevin

International Arbitration

Enforcement & Asset Recovery

Cross-border Litigation

International Contracts

Guillaume specialises in Cross Border Disputes, with a focus on International Arbitration and Asset Recovery

Guillaume has acted in more than 70 arbitration proceedings under most usual rules and regularly acts as arbitrator in commercial disputes.

Guillaume leverages his expertise to bridge arbitration and asset recovery. He excels in enforcing awards and tracing assets across jurisdictions, ensuring arbitration victories translate into tangible results.

With extensive professional experience spanning Europe, Africa, Asia, and the Middle East, Guillaume has demonstrated a strong ability to adapt to diverse legal and business environments to deliver results to his clients.

Guillaume is recognized as an expert in asset recovery by Lexology and is ranked in Legal 500 for his work in international arbitration.

Member of the Court of Arbitration of the Swiss Arbitration Centre

Fellow of the Chartered Institute of Arbitrators

Geneva Bar Association

Ongoing or recent work include:

Counsel in complex Swiss Arbitration Center arbitration with 100M+ stakes

Counsel in ICC Arbitration relating to European licensing agreements, Swiss law

Claimant's counsel in ICC Arbitration relating to post-fraud outcomes

Enforced a French ICC arbitral award to full recovery of assets in Switzerland

Co-Arbitrator in a dispute under the Sales Convention relating to the Middle East operations of several EMEA-based companies

Sole Arbitrator in a dispute under Swiss law relating to sanctions issues

Legal expert on Swiss law of contracts in a USD 800 million case before the English High Court

University Paris II-Assas

Master in International Law

Paris-X University

Postgraduate Diploma in English & American law

University of Essex

LL.M.

Avocat à la Cour (Paris), Registered at the Geneva Bar