Grégoire Mangeat

Grégoire Mangeat is one of the founders of MANGEAT and Former Chairman of the Geneva Bar Association (2016-2018). He is recommended by Legal 500 and a ranked lawyer by Chambers and Partners.

His main practice areas are Litigation, Arbitration and White Collar Crime and Investigations.

He specialises in assisting and representing clients in Swiss and International proceedings, enforcing and defending against claims and taking preliminary measures (seizing of properties, obtaining bans, prohibiting media releases etc.).

He is a member of the European Criminal Bar Association (ECBA) and a member of the European Fraud and Compliance Lawyers (ECFL).

He has proven experience in gathering preliminary evidence, representing clients in white-collar crime, extradition, inheritance or bankruptcy proceedings. He also specialises in the delisting of people or entities from sanction lists and in legal and administrative assistance (tax, criminal and financial matters) and has appeared in several cross-border and multi-jurisdictional proceedings.

Grégoire served as Chairman of the Human Rights Commission of the Geneva Bar Association (ODA).

Prior to founding Mangeat Attorneys at Law, Grégoire was partner at Eversheds in Geneva and a partner at MCP Avocats, Geneva, before that.

He is a lecturer at the University of Geneva (ECAV) and has been teaching litigation skills since 2011.

“I endorse Grégoire Mangeat without any reservation. He helped us in several critical cases to maintain the upper hand when dealing with competitors and governmental agencies.”
“He dedicates himself to every case and will do his best to secure a favorable outcome for his clients. Anyone who hires Grégoire can expect the absolute best possible result in his/her case.”

– Alexander C. Zwyer, ZWYVER Caviar

“Grégoire Mangeat provides incisive analysis, a fine sense of strategy, combined with the right amount of boldness to achieve the outcome clients require. Depth of analysis, fearlessness and boldness of strategy coupled with a healthy sense of pragmatism and realism are a hallmark of Grégoire’s approach” When faced with a potentially sensitive political and legal matter, Grégoire provided a steady hand in terms of putting together a coherent analysis of the matter and a clear strategy to achieve the necessary outcome for this client.”
– Niels Olesen, CEO of HYPOSWISS PrivatBank AG.

Academic Background / Education

M.B.L.-HSG, University of St.Gallen, Switzerland

Geneva Bar

University of Paris II Assas

University of Fribourg, Switzerland


French, English, Italian, German