hero banner

Stephan Baumann is Head of the Service Line Tax of Grant Thornton Switzerland.

Professional experience

Stephan Baumann has over 20 years’ experience in tax consulting, including 12 years as a tax partner and leader international tax for a Big-4 in Switzerland. He joined Grant Thornton end of 2012.

Stephan developed and ran the Swiss Tax Desk in San Francisco and New York. Stephan focuses on international corporate tax with a special interest in the mobile income area and international corporate reorganizations.

He has successfully advised on and carried out numerous projects relating to cross-border trading, intellectual property, finance and other corporate tax structures and reorganizations. Main clients are U.S. and Eastern Europe privately-owned and publicly traded companies with nexus to Switzerland.

Professional qualifications and memberships

Dr. Baumann holds a PhD in Economics and is a Swiss certified tax expert. He is a member of EXPERTsuisse and of the Swiss-American Chamber of Commerce.


In addition to his mother tongue German, Stephan is fluent in English.

Download CV PDF [ 146 kb ]


  • PhD in Economics
  • Swiss certified tax expert
Read more


Meet our People