Nicolas Herren

Philippe Mantel is an attorney-at-law, member of the Geneva bar Association (ODAGE), the International Fiscal Association (IFA) and the association of Business Lawyers (AIBL). Philippe gained his experience working for about 10 years in the corporate tax department of the big fours in Geneva, Lausanne and Zurich. As from 2015, he was an associate and since 2019 a partner of Meyerlustenberger Lachenal (MLL) in Geneva, assisting private individuals and corporate clients in all tax matters. Phil...

Expert in corporate tax law, international tax planning, mergers and acquisitions, as well as strategy and transfer pricing. Also acts as counsel in domestic and international tax criminal proceedings. Seats on the Board of directors of several companies. He has extensive experience in banking tax law, as well as in taxation of investment structures (investment funds and corporate holdings) and commodity trading companies.

Counsel Fabien Liégeois advises businesses (groups, banks and SMEs) and individuals on Swiss and international taxation matters.His practice focuses on restructurings (mergers and acquisitions, demergers or transfers of assets), cross-border transactions and setting up businesses in Switzerland. He also assists individuals in their relocation to Switzerland (wealth and inheritance planning), in particular in anticipating the legal and economic consequences of such decisions. He also de...

Vaïk Müller is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Corporate Law. Vaïk, who practices law in Geneva, Switzerland, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Vaïk is held by other top lawyers in the same geographic and legal practice area.

Sarah Busca Bonvin is a lawyer and tax expert specialised in both corporate and individual tax law. Together with M. Andrio Orler, she is responsible for CMS’ tax department in Geneva, which she joined in 2017. She worked for 15 years in the Geneva tax administration as Director of the tax affairs where she was responsible for tax rulings before being appointed Deputy Director-General in 2010. This experience has given her significant breadth and depth of knowledge and practice in many ...

Adriano Antonietti advises domestic and foreign banking and financial institutions, as well as collective investment schemes and asset managers on a wide range of matters, in particular regulatory issues, private placements, the drafting of banking contracts and certain tax related matters (FATCA, CRS). He also defends banks and their clients in a number of disputes and deals with all aspects of corporate and commercial law. His main fields include financial products and services, including r...

Diana Akikol represents our clients in complex commercial arbitrations and regularly sits as an arbitrator, often as president. She has been involved in more than 65 arbitrations seated in a number of jurisdictions and involving claims governed by various national laws. Her expertise extends to both institutional arbitrations (e.g. Swiss Rules, ICC, LCIA and DIS Rules) and ad hoc arbitrations (including UNCITRAL proceedings). Diana Akikol acts as counsel or arbitrator in all types of contract...

Etienne von Streng is a co-founder of Streng SA, a tax law firm based in Geneva, Switzerland. Etienne received his law degree from the University of Lausanne (Switzerland), was admitted to the Zurich bar, and holds a Certified Tax Expert diploma. Etienne advises on Swiss and international tax matters for companies including listed and private multinationals, high net worth individuals, entrepreneurs, and families. His expertise includes in general tax optimization, frequent negotiations with ...

Rodolphe Gautier heads the Dispute Resolution practice of Geneva. He has more than 15 years of experience working in litigation and arbitration. His practice focuses on commercial and banking disputes in Switzerland and international arbitration involving Swiss-connected parties, assets, substantive law or seats of arbitration. He frequently acts for multinationals, domestic companies and individuals before civil and criminal courts and arbitral tribunals. His practice also includes applicati...

Michel Abt is the co-head of the Tax Group and a member of the Banking & Finance Group. He advises both natural persons and legal entities such as banks, family offices and trusts, as well as investors and administrators whether in Switzerland or abroad, with a specific emphasis on asset holding structures. Since 2009, Michel Abt has been advising a large number of French clients in their regularization process and has assisted them with their tax optimisation. He thus addresses all tax m...