Clients’ comments "For every specific issue, we have proven experts with in-depth know-how at our side who handle our concerns efficiently and at the highest professional level” and “ADB approach matters in a smart manner and are able to break them down into more tangible modules, thus making them easier to understand and solve in a pragmatic manner".

We are pleased that ADB has once again been recognized by Chambers and Partners as one of Switzerland’s leading tax firms and has been listed in the Chambers Europe Guide 2026 in the “Tax” category.
In the individual rankings, Fabian Duss, Andreas Helbing and Pascal Taddei are among the leading experts in the field of taxation.
Each year, Chambers and Partners meticulously evaluates and publishes rankings spotlighting the most distinguished national and international lawyers and law firms across diverse specializations. These rankings are the result of rigorous research conducted by an expert team of market researchers.