Clients’ comments "ADB’s approach is pragmatic and in the interest of long-term goals”, “ADB convince with their ability to analyse and efficiently solve complex tax issues in a structured, forward-looking manner and with a high level of professional precision” and “We know that we get excellent, reliable advice from ADB that will stand before tax authorities".

We are pleased that ADB has once again been recognized by Chambers and Partners as one of the world’s leading tax advisory firms and has been listed in the Chambers Global Guide 2026 in the “Tax” category.
In the individual rankings, Fabian Duss, Andreas Helbing und Pascal Taddei were identified as among the world’s leading practitioners in the field of tax law.
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.