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ADB has become a member of Nexia International


Nexia International is a global network of independent audit and advisory firms with a focus on international tax advisory services. Belonging to the largest networks after the "Big 4", it has been granted the "Rising Star Network of the Year" award in 2013 by the International Accounting Bulletin (IAB). Nexia International consists of member firms in over 100 countries with more than 600 locations. Over 35'000 qualified local specialists can be reached.

Increasingly, not only large multinational enterprises but also SMEs and high net worth individuals are confronted with crossborder issues. In this context, membership in an international network provides a valuable resource. In addition to our well established contacts with foreign advisers, we can rely with Nexia International on a strong partner, allowing us to cover a large area of international tax for the benefit of our clients. Local expertise with global reach!


When you choose a Nexia firm, you get a more responsive, more personal, partner-led service, across the world. Nexia is a highly active network that drives quality and facilitates collaboration to enable its member firms to provide effective local and global solutions. Nexia member firms deliver a partner-led service to clients which ensures continuity, expertise and a deep understanding of the client’s business. They are characterised by people who have an entrepreneurial spirit and who can relate closely to the SME and owner-managed businesses.


Nexia firms are focused on supporting local businesses as they grow and through the Nexia network, they can also help their clients confidently venture into new international markets.


Nexia International Limited, a company registered in the Isle of Man which operates the Nexia International network, does not deliver services in its own name or otherwise. Nexia International Limited and the member firms of the Nexia International network (including those members which trade under a name which includes the word NEXIA) are not part of a worldwide partnership. Nexia International Limited does not accept any responsibility for the commission of any act, or omission to act by, or the liabilities of, any of its members. Each member firm within the Nexia International network is a separate legal entity.


The trade marks NEXIA INTERNATIONAL, NEXIA and the NEXIA logo are owned by Nexia International Limited and used under licence.


References to Nexia or Nexia International are to Nexia International Limited or to the “Nexia International” network of firms, as the context may dictate. For more information, visite





ADB is recognized as a leading Swiss tax advisory firm by the following international rankings.


International Tax Review: World Tax, World TP


CHAMBERS GLOBAL: Global Guide, Tax - Switzerland


CHAMBERS EUROPE: Global Guide, Tax - Switzerland


Legal 500: Tax



Many ADB professionals are recognized as leading individuals in Swiss tax law by the following international professional services guides.


International Tax Review: Indirect Tax Leaders, Tax Controversy Leaders and Women in Tax Leaders


Who's Who Legal: Corporate Tax


Our partner, Fabian Duss has been awarded in the 2019 edition of "WWL Thought Leaders Switzerland 2019". The interview about his practice area, Corporate tax, can be viewed here


Expert Guides: Tax and Rising Stars




All listings are based on independent research.






Acquisition International 2016 Tax Awards

'Best Tax Consultancy Firm – Switzerland'

'Recognised Leader in Corporate Tax – Switzerland'


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Acquisition International 2015 Tax Awards

sponsored by


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'Tax Firm of the Year – Switzerland' Dreieck

The well-respected international corporate finance magazine "Acquisition international" commends each year various awards in different sectors of the professional service industry. The 2015 Tax Awards were sponsored by IBFD (International Bureau of Fiscal Documentation), Amsterdam, the most renowned independent non-profit organization in Europe for the promotion of the international tax law sciences.

ADB was awarded by the readership, its peers and the editorial expert team as winner in the category tax advisory services Switzerland ("Tax Firm of the Year - Switzerland"). This award reaffirms our permanent striving for excellence in the provision of high-quality tax advisory services to our national and international clients.