High Net Worth Guide 2026 : Switzerland
Ranked Individual
Provided by Twenty20 Trustees SA
Twenty20, a FINMA regulated company, assists in establishing various types of international trusts in a wide range of jurisdictions including Jersey, Guernsey, Gibraltar or England. Twenty20’s specialty lies in the establishment and administration of a Swiss Private Trust Company (“PTC”) or a Dedicated Trust Company (“DTC”) and its underlying structures in conjunction with the family’s professional advisors.
Twenty20 actively engages with key stakeholders such as families, their advisors, family offices, and banking institutions, both domestically in Switzerland and internationally. Its role extends beyond routine collaboration. Twenty20 guides clients through the strategic restructuring of their groups and structures. This involves the implementation of long-term dynastic trusts to optimize asset ownership, facilitate comprehensive estate planning, and fortify wealth protection. Additionally, Twenty20 collaborates closely with families to establish charitable trusts, tailoring our approach to their specific needs and aspirations.
Provided by Chambers
Based in Geneva, Twenty20 Trustees advises high net worth clients and families on establishing and administering private trust companies and dedicated trust companies. The team is highly praised for its technical expertise and ability to handle complex assets.
Provided by Chambers
Twenty20 Trustees is pragmatic, professional and very responsive.
Twenty20 Trustees has proven expertise in dealing with highly complex matters. It consistently adopts a bespoke approach, providing dedicated solutions to clients' personal issues.
Twenty20 Trustees is very adaptive, knowledgeable about finance and investment, and very reactive, responsible and transparent.
Twenty20 Trustees understands the overall approach from a business and tax perspective and works on the issues proactively on its own.
Twenty20 Trustees is one of the most sophisticated trustees in Switzerland.
Provided by Chambers
Arnaud Cywie is CEO of Twenty20 Trustees and counsel at Borel & Barbey. Cywie frequently advises clients on trusts, foundations and tax issues, acting for both individuals and financial institutions.
It is a pleasure to work with Arnaud Cywie.
Arnaud Cywie is an expert in his field with outstanding communication skills and a creative mindset.
Arnaud Cywie is a standout trustee in Switzerland.
Arnaud Cywie is extremely clever.
Arnaud is highly dedicated and very responsible when making decisions.
Trust Companies
Provided by Twenty20 Trustees SA
Arnaud Cywie
View profile of Arnaud Cywie
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