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Arendt & Medernach

Guy Harles

Guy Harles



  • Corporate Law, Mergers & Acquisitions
  • Private Equity & Real Estate

WSG Practice Industries


WSG Leadership

WSG Regional Council
Member 2021/ 2022
WSG in Europe Group
WSG Main Group
IBA Group
Guy Harles is a Founding Partner and former Chairman 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 (Batonnier) 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 co-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 Universite Louis Pasteur (Strasbourg) from 1981 to 2007 and at the Universite Paul Cezanne (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.
Areas of Practice

Corporate Law, Mergers & Acquisitions | Private Equity & Real Estate | Private Wealth


Companies Still Permitted to Hold Meetings Without Physical Attendance Until 31 December 2020
Arendt & Medernach, September 2020

THE LAW OF 23 SEPTEMBER 2020 REGARDING MEASURES GOVERNING HOW COMPANIES AND OTHER LEGAL ENTITIES ARE PERMITTED TO HOLD MEETINGS HAS BEEN PUBLISHED IN THE LUXEMBOURG OFFICIAL JOURNAL. This law enables companies and other legal entities (such as ASBLs) to hold general meetings and other meetings of the company’s corporate bodies without the need for physical attendance, even where this is not provided for in the company’s articles of association...

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