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Guillaume Fatio


Banking and Finance
Commercial Law
Mergers and Acquisitions
Project Finance
Commercial Litigation
Nonprofit and Charitable Organizations

Guillaume Fatio heads the Firm’s practice group in banking and finance law. Besides providing advice to banks and other financial institutions, he litigates cases before commercial and criminal courts for them. Guillaume Fatio is also a renowned expert in project financing and commercial and private disputes (in particular in estate matters) as well as in commercial law. He also dedicates a sizeable amount of his time to non-profit organizations and public interest foundations.

Spoken languages : French, Spanish, English and German

Professional career


Admitted to the Bar 1995 
Universities of Geneva and Zurich (Licence en droit, 1992)
University of Geneva (Licence en sciences commerciales, 1997)

Career history

Partner with BMG Avocats, Geneva, since 2005 
Associate with BMG Avocats, Geneva, 1999-2005
Associate with Larrain y Asociados, Santiago, Chile, 1997-1999
Trainee, then Associate, with Notter, Blatter, Davidoff & Partners, Geneva, 1995-1997
Trainee with the Geneva Court of First Instance, 1995


Geneva Bar Association 
Swiss Bar Association
International Association of Young Lawyers
Latin American Chamber of Commerce in Switzerland
Geneva Business Law Association (AGDA)
ASA Below 40
Association of International Business Lawyers


Switzerland : Litigation & Dispute Resolution Laws and Regulations 2021, in International Comparative Legal Guide - Litigation & Dispute Resolution 2021 (with Rocco Rondi and Isabelle Baroz Kuffer)

Switzerland: Enforcement of Foreign Judgments Laws and Regulations 2021, in International Comparative Legal Guides - Enforcement of Foreign Judgments Laws and Regulations 2021 (with Rocco Rondi and Isabelle Baroz Kuffer)

Art. 764-771 CO, Commentaire romand du Code des obligations, vol. II, 2007

Le secret bancaire en Suisse, in Gazette du Palais, 125e année (2005), n° 159-160, Paris, p. 28 à 31

Association et «Corporate Governance», in De Lege Ferenda – Etudes pour le prof. Alain Hirsch, Slatkine, Genève, 2004, p. 273-279

Présentation du système fiscal chilien, in Cahiers juridiques et fiscaux de l’exportation 1999/n°3 (avec Carlos Larrain Peña), Centre français du commerce extérieur, 1999, p. 477-492

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