David
Siegenthaler

Associate
B.A. HSG in Law and Economics

David Siegenthaler
  • +41 58 958 53 61
  • d.siegenthaler [SECURE E-MAIL - REWRITE MANUALLY] *at* wengervieli.ch
  • Zurich Office

    Wenger Vieli Ltd.
    Dufourstrasse 56
    P.O. Box
    8034 Zurich

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Expertise

Taxation

About

David Siegenthaler primarily focuses on VAT consulting and provides tax advice to both individuals and legal entities on national and international matters.

“During my studies, I explored the intersection of business and law. This interdisciplinary approach inspired me to pursue a career in tax law, as taxation perfectly embodies this cross-disciplinary field. I am fascinated by the opportunity to work with numbers while addressing complex legal issues and developing tailored solutions for our clients. I find balance in my professional life through kitesurfing and spending time with friends and family.“

David Siegenthaler speaks German and English.

David Siegenthaler
  At present in training to become a certified tax expert
Since 2025 Associate at Wenger Vieli Ltd. 
2025 University of St. Gallen (M.A. HSG in Law & Economics)
2023-2025 Tax Intern at Wenger Vieli Ltd.
2023 University of St. Gallen (B.A. HSG in Law and Economics)
2017-2019 Private Banking at Credit Suisse (Schweiz) AG
2017-2018 Passerelle program
2014-2017 Training as Banking Specialist with vocational diploma at Credit-Suisse (Schweiz) AG