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Focus on

A founder leaving the team?
Implemented an ESOP without ruling?
Lost in term sheet legalese?
You focus on your startup.
We take care of your legal needs.

A founder leaving the team?
Implemented an ESOP without ruling?
Lost in term sheet legalese?
You focus on your startup.
We take care of your legal needs.

News

Deals & Cases | 20 August 2025
Series A Financing Round of Evulpo
Deals & Cases | 15 August 2025
Walder Wyss advises on the partial buyout and the restructuring of Swissbadge GmbH
Deals & Cases | 31 July 2025
askEarth AG – Swiss startup in the field of geospatial AI raises CHF 2.26m in seed financing round
Deals & Cases | 15 July 2025
Walder Wyss advised Chrysalis Investments Ltd. in connection with its investment in wefox
Deals & Cases | 11 July 2025
NUCLIDIUM Closes CHF 79 Million (EUR 84 Million) Series B Financing to Advance Clinical Development of its Copper-based Radiopharmaceutical Platform
Deals & Cases | 26 June 2025
Walder Wyss advised Boostbar AG on EUR 16m financing round
Deals & Cases | 17 June 2025
Voliro announces Series A Extension
Deals & Cases | 13 May 2025
Granite Bio Debuts With USD 100 Million of Capital
Deals & Cases | 8 April 2025
Sparta Commodities secures USD 42m Series-B Round led by One Peak to transform commodity trading with AI-powered insights and collaboration
Deals & Cases | 12 March 2025
Vi Partners Invests in Kadoa

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Events

20.11.2025
Switzerland Innovation Park Basel Area in Allschwil
Co-founder Matchmaking Event

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Publications

Publikationen | 31 July 2025
Corporate Law - Developments 2024
by André Kuhn, Katja Schott-Morgenroth, Letizia Schlegel, Michelle Bruni and Fabian Akeret
Publikationen | July 2025
Startup Legal Playbook
by Jürg Schneider, Michael Kündig, Joffrey Dobosz, Emilia Rebetez, Mattia Vidoz, Matteo Berti and Anaïs Essinger
PDF: 1283 KB
Publikationen | 22 May 2025
Key Swiss Tax Practice Update: Welcome Adjustment of Rules on the Taxation of Convertible Loans
by Fabienne Limacher and Maurus Winzap
PDF: 234 KB
Publikationen | 13 May 2025
Venture Capital 2025 - Chapter Switzerland
by Marion Bähler, Ramona Wyss, Florian Gunz Niedermann, Fabienne Limacher and Urs Hofer
PDF: 1280 KB
Publikationen | 2024
The shareholders' right to convene a meeting
by Tizian Troxler
Publikationen | 16 October 2024
Financing of Start-up and Early-Stage Companies with Convertible Loans Swiss Tax Considerations
by Maurus Winzap and Fabienne Limacher
PDF: 601 KB
Publikationen | 22 April 2024
Venture Capital 2024 - Chapter Switzerland
by Marion Bähler, Ramona Wyss, Florian Gunz Niedermann, Fabienne Limacher, Alex Nikitine and Urs Hofer
PDF: 976 KB
Publikationen | 1 April 2024
The Share Token, A Private Law Examination of a Share issued as a ledger-based security according to the Swiss DLT-Bill
by Merens Derungs
Publikationen | 19 June 2023
Switzerland’s new corporate law – what startups and investors need to know
by Marion Bähler
PDF: 52 KB
Publikationen | 23 December 2022
Article 725 et seq. CO: (Il-)Liquidity, Capital Loss and Over-Indebtedness – New Duties for Swiss Boards
by Alex Nikitine and Jenny von Arx
PDF: 319 KB

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Our Offerings

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Client Feedback

Our collaboration with Walder Wyss has been crucial in driving GetYourGuide's growth from its inception to a global leader.

Johannes Reck, CEO and co-founder
Our journey from Series Seed to Series B wouldn't have been the same without this incredible team. Walder Wyss are deeply attuned to the unique needs of startups and have been highly effective counsel every step of the way. We trust them completely and couldn’t recommend them more highly.

Johannes Lermann, CFO & Co-Founder
Walder Wyss helped us end to end from term sheet to closing a Series A round swiftly. They’ve provided efficient and responsive support and were able to make the process appear seamless.

Christoph Jenny, Co-Founder

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Our Team

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