Olivier Weniger

Jürg Schneider is a partner at Walder Wyss and head of our Lausanne office. His practice areas include Information Technology, Data Protection, and Outsourcing. He regularly advises both Swiss and international firms on comprehensive licensing, development, system integration, and global outsourcing projects. He has deep and extensive experience in the fields of data protection, information security, and e-commerce, with a particular focus on transborder and international contexts. In ad...

An expert in real estate law, Nicolas Iynedjian also advises Swiss and international clients on all aspects of corporate and commercial law. A significant portion of his work is in connection with real estate and includes acquisition, lease, loan, security interest, regulatory and zoning matters, as well as dispute resolution. He also regularly advises Swiss and foreign companies on corporate issues, shareholders’ agreements, mergers and acquisitions, plus banking and financing matters....

Ralph Schlosser is a renowned intellectual property and contract law specialist. Very active before the courts, he has gained considerable experience in disputes and advises, among others, several world renowned multinationals. Ralph Schlosser frequently publishes contributions devoted to intellectual property and contract law, often concerning issues of civil procedure. Furthermore, he regularly gives conferences in his areas of expertise. He has been chosen as one of the best lawyers of the...

Alexandre Both is a partner at Walder Wyss. He specialises in domestic and cross-border M&A, private equity and venture capital transactions. His practice also covers a wide range of finance transactions, in particular acquisition finance, real estate finance and commodity trade finance. He also advises on general corporate and contractual matters. Alexandre Both was educated at Fribourg University (lic. iur. 1999) and St. Gallen University (lic. oec., specialisation in finance and capita...

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 ...

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.

Juliette Ancelle is a top attorney recognized by Best Lawyers in the practice area(s) of Entertainment Law, Intellectual Property Law and Labor and Employment Law. Juliette, who practices law in Lausanne, Switzerland, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Juliette is held by other top lawyers in the same geographic and legal practice area.

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

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...

Véronique Perroud, active at the bar for more than 15 years, benefits from sound, extensive experience in the field of labour law based on intensive legal practice. She advises and defends the interests of both employees and employers in complex cases. Wishing to be capable of offering her clients a global approach, Véronique Perroud was trained in mediation and obtained a CAS in company mediation in 2014 as well as a general mediation certificate in 2015. FSA specialist in labo...