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Guillaume
Tattevin
Partner
Geneva
Avocat à la Cour (Paris), Registered at the Geneva Bar
+41 (0) 22 555 82 20
CV (English)
Expertise
International Arbitration
Enforcement & Asset Recovery
Cross-border Litigation
International Contracts
Professional background
Previously practiced with the arbitration teams of international firms in Paris and Geneva
Legal Counsel at the Permanent Court of Arbitration in The Hague (2005-2008)
Education
Master in International Law, University Paris II-Assas (2001)
Postgraduate Diploma in English & American law, Paris-X University (1999)
LL.M., University of Essex (2000)
Languages
French
English
Professional affiliations
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
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.
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Details of recent activities
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
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Conferences
East Africa Arbitration Conference, 2024 (Moderator, Addis Abeba, 2024)

Arbitration & ADR in Art-related Disputes (Speaker, The Hague, 2019)

The New ICC Notes to Parties on the Conduct of the Arbitration (Speaker, Geneva, 2019)

Advocacy in International Commercial Arbitration (Elliott Geisinger, Guillaume Tattevin (eds), ASA Special Series, Londres, 2013)

Price Revision Arbitration under LCIA & Swiss Rules (Geneva, 2017)

Iura novit curia (Florence, October 2016)

Third Party Funding & Enforcement (Geneva, 2015)

International sanctions in Cuba after the Embargo (Paris, 2015)

L’extension des clauses d’arbitrages dans les groupes de sociétés (Santo Domingo, 2015)
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