Guy Harles

Guy Harles is a Founding Partner of Arendt & Medernach. He specialises in corporate projects,  advising multinational and domestic companies, as well as HNWIs on the structuring of  international transactions, private equity investments, corporate reorganisations, mergers and  acquisitions, corporate finance and private wealth management. As an entrepreneurial lawyer,  Guy plays a major role in Arendt & Medernach’s international development. He has acquired a  very good knowledge of the international market and more specifically of Asia, where he  regularly advises clients.

Guy’s international business experience and long-standing position as trusted advisor are  underscored by a number of Board-level appointments. Guy also regularly serves as an  arbitrator, designated by leading international arbitration centres. He is a former President of  EuroArbitrage, chairman of the Luxembourg arbitration association and a member of the ICC  Commission on Arbitration and ADR. 

Guy is involved in the lawyers’ community in Luxembourg and abroad. He has been a member  of the Luxembourg Bar since 1980 and served as Chair (Bâtonnier) of the Luxembourg Bar  Council from 2011 to 2012. He has been a member of the Paris Bar since 1993 and was  admitted as a foreign lawyer to the Hong Kong Bar in 2009. He was the president of the  Luxembourg Young Bar Association and of AIJA (International Young Lawyers’ Association). 

Guy currently serves as senior vice chair on the Corporate and M&A law committee of the IBA. 

Sharing his knowledge and professional experience is very important to Guy. He graduated in  1979 from the Robert Schuman University in Strasbourg with a Master’s degree in law and an  advanced degree (DESS) in banking and finance. Only three years later he started as a lecturer  on business law at the Centre Universitaire de Luxembourg, the Faculty of Law (University of  Luxembourg), at the Université Louis Pasteur (Strasbourg) from 1981 to 2007 and at the  Université Paul Cézanne (Aix en Provence) from 2010 to 2012. 

Guy started his professional career in the finance department of Arbed, now part of  ArcelorMittal, the global steel company headquartered in Luxembourg, working on long-term  debt and export financing. 

Languages: English, French, German, Italian and Luxembourgish.

Educating Leaders for a fast-changing World


+352 26 25 89 80

46 Côte d'Eich, 1450 Luxembourg


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