Best Lawyers in Switzerland for Corporate Law
Christophe Buchwalder is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Corporate Law and Mergers and Acquisitions Law. Christophe, who practices law in Geneva, Switzerland, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christophe is held by other top lawyers in the same geographic and legal practice area.
Alexander Gutmans is a partner at Walder Wyss since 2014. He advises national and international clients in the fields of commercial and corporate law, mergers & acquisitions, private equity, venture capital and financings as well as in the field of health care and life sciences in contractual and regulatory matters. As a notary of the canton Basel-Stadt he accompanies his clients in commercial register and real estate register transactions as well as German notarisations. Alexander Gutman...
Reto Vonzun is a partner at Walder Wyss since 2014. His practice focuses mainly on corporate and commercial law, M&A, private equity and venture capital transactions. As co-author of the Zurich Commentary on the Simple Partnership (art. 530–551 CO) he is also recognized as one of Switzerland's leading scholars and practitioners in the area of partnership law. Finally, Reto Vonzun acts for various medium-sized and larger companies and their executive management as the 'point of first...
Mathieu Blanc has been practising for many years in the different fields of commercial law. He regularly advises local or international companies in all stages of their constitution and development as well as during corporate transfers and successions or for issues of governance (drawing up shareholders’ agreements, financing, organisation of the board of directors). Mathieu Blanc also advises numerous clients for the drawing up and negotiation of sales contracts. He furthermore assists...
Urs Schenker is very experienced in the areas of restructuring, financing, capital markets, M&As and company law. He has been involved in numerous national and international M&A transactions and public takeovers as well as financing, restructuring and other corporate finance transactions. He has published a number of books and specialist articles in his fields of expertise and is a regular lecturer at conferences in Switzerland and abroad. Urs Schenker completed his law studies in Zur...
Marina Castelli-Joos is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Mergers and Acquisitions Law and Private Equity Law. Marina, who practices law in Lausanne, Switzerland, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marina is held by other top lawyers in the same geographic and legal practice area.
Luc Defferrard, partner with Walder Wyss since 2001, has been active in the finance and legal industry for many years. He mainly advises clients in domestic and cross-border mergers & acquisitions, financing, restructuring as well as in real estate and capital market. Luc Defferrard particularly focuses on private equity and venture capital transactions. He is regularly recommended by Chambers, Legal500 and IFLR1000. Chambers Europe describes him as "always available" and "very strong neg...
Marco Strahm is a partner and notary of the Canton of Berne in the Corporate and Commercial Team. His main areas of practice include corporate and commercial law, real estate law. Born in 1964, Marco Strahm was educated at the University of Berne (state exam 1992, notary 1995). He has been working as a practising attorney and notary since 1995. Before joining Walder Wyss in 2009, Marco Strahm was a partner in a major Zurich law firm for eight years. Marco Strahm speaks German, English and Fre...
Thomas Goossens is an expert in the fields of banking and financial law, investment funds and corporate law. He regularly advises banks, securities dealers, financial institutions and trading companies, and assists promoters, asset managers of Swiss and foreign investment funds on regulatory matters. He also advises start-ups, entrepreneurs, investors, buyers, sellers and financial sponsors in all kinds of corporate finance deals, mergers and acquisitions, private equity, refinancing and proj...
Manuel Bianchi della Porta advises entrepreneurs and companies. He assists them for their projects and when important operations are ahead (acquisitions, transmissions, restructuring, etc.). He helps them assess risks/opportunities and take difficult decisions. He is also on their side when weather turns bad. His relationship with clients is defined by personal commitment and availability. Recognized for his thoroughness, pragmatic approach and sense of priorities, he never loses sight of the...
Hans-Jakob Diem is a corporate Partner at Lenz & Staehelin. He heads the firm's Corporate and M&A practice group and is the co-head of the Capital Markets practice group in Zurich. He has extensive experience in representing clients in a variety of corporate transactions, concentrating on mergers and acquisitions, capital market transactions, bank financings and corporate governance matters. Hans-Jakob Diem is regarded as a leading corporate practitioner in Switzerland and is regularl...
Patrick W. Vogel is a partner with Walder Wyss. He specializes in corporate law, as well as in banking and finance. He advises domestic and foreign companies on mergers and acquisitions and private equity transactions. With an education in both business and economics (HEC Lausanne) and law, he began his career by working for several years as an associate in the busy corporate finance departments of two pre-eminent US law firms in New York. Patrick Vogel has advised numerous clients on cross-b...
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.
Philippe Nordmann is Co-Head of our Employment Law Team and Head of our Basel Office. He advises companies as well as executive employees in all aspects of employment law (e.g. drafting of employment contracts and employee regulations, setting upcompensation schemes, support concerning dismissals and plant closures, advising companies in negotiations regarding collective bargaining agreements, assignments of employees, staff leasing, work permits, competition clauses etc.). He has substantial...
Alain Raemy is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Alain, who practices law in Zürich, Switzerland, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alain is held by other top lawyers in the same geographic and legal practice area.
Our Methodology
Recognition by Best Lawyers is based entirely on peer review. Our methodology is designed to capture, as accurately as possible, the consensus opinion of leading lawyers about the professional abilities of their colleagues within the same geographical area and legal practice area.
The Process
Best Lawyers employs a sophisticated, conscientious, rational, and transparent survey process designed to elicit meaningful and substantive evaluations of the quality of legal services. Our belief has always been that the quality of a peer review survey is directly related to the quality of the voters.