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

He has over two decades of experience in complex cross-border 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.

He has acted in more than 70 arbitration proceedings under most usual rules and regularly acts as arbitrator in commercial disputes. He has recovered assets on behalf of states, multinational corporations, financial institutions, small businesses, and other victims of fraud and financial crime.

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

- Swiss Art Law Association

- Leading Swiss recovery of stolen assets following a USD multi-billion fraud involving cross-jurisdiction recovery

- Defence counsel in complex Swiss-based arbitration with 100M+ stakes

- Recovery counsel for several Middle Eastern institutional clients

- Won a Swiss-rules arbitration in relation to a post-M&A dispute.

- Enforced a French arbitral award and obtained recovery of assets in Switzerland

- Successfully applied for recognition of foreign liquidators to ensure their ability to operate in Switzerland

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

- 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.