Stephan Beutler

Maud Fragnière is mainly active in the fields of intellectual property, competition and contract law. She benefits from huge judicial practice and frequently advises her clients before the courts. She acquired significant experience in competition law after working as a scientific collaborator at the Federal Competition Commission in Bern in 2010 and 2011. Maud Fragnière advises both multinationals and SMI in her areas of expertise (contracts, brands, patents, competition). She ...

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...

Andrio Orler is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Andrio, who practices law in Geneva, Switzerland, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrio is held by other top lawyers in the same geographic and legal practice area.

Fouad Sayegh is a partner in the tax team. His expertise covers most aspects of domestic and international taxation. He regularly advises high net worth families in their relocation, wealth reorganization, asset protection, estate planning and charitable projects, which often includes tax advice in relation to trusts, private foundations and investment vehicles. In the field of corporate tax, his practice includes advising on M&A transactions, corporate reorganizations, double tax treaty ...

Robert von Rosen is a partner in the Basel office of Walder Wyss. His practice focuses on domestic and international M&A transactions (mainly private M&A/private equity and venture capital) with a focus on telecommunication, energy and life sciences. In addition, he advises mainly medium-sized and start-up companies and SMEs on questions of corporate governance, compliance, restructuring and all other legal aspects of day-to-day business operations. Robert von Rosen is a board member ...

Christian Eichenberger is a partner in the real estate team. He focuses on real estate development, real estate transactions and real estate dispute resolution. In addition to his real estate transaction and real estate development experience, Christian Eichenberger also has extensive experience in real estate dispute resolution with particular expertise in the fields of construction law, planning and zoning law and landlord tenant law. He represents clients in both arbitration proceedings an...

Markus Pfenninger is a partner in the Transactions Team. His fields of expertise include capital market transactions, mergers & acquisitions, finance, restructurings, collective investment schemes as well as banking and insurance regulatory matters. He is a member of the International Bar Association’s (IBA) Task Force on the Financial Crisis and a past chair of the IBA’s Subcommittee on Legal Opinions as well as a past co-chair of the IBA’s Banking Law Committee. Born i...

Nicolas Béguin is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Nicolas, who practices law in Geneva, Switzerland, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nicolas is held by other top lawyers in the same geographic and legal practice area.

Urs P. Gnos heads the Transaction Team. His practice focuses on international and domestic mergers & acquisitions, private equity, venture capital and capital market transactions, commercial and corporate law as well as public tender offers and buy-outs. Urs P. Gnos also advises companies with respect to corporate governance matters, stock exchange regulations, corporate reorganizations and restructurings, incl. relocations. Urs P. Gnos is a member of various board of directors, among oth...

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...