Katia Berchier Theiler

Attorney at Law and Notary

Katia Berchier Theiler is specialized primarily in the areas of corporate and contract law. She offers solution oriented advice to national and international private individuals as well as companies. Furthermore, Katia Berchier Theiler focusses her practice on construction law as well as inheritance law and estate planning issues. Her origin from the French-speaking part of Switzerland enables her to be active for French-speaking clients as well as to draw up multilingual deeds.


Since 2021 Attorney at law and notary public at Bright Law AG
2009-2020 Attorney at law and notary public at Zwicky Windlin & Partner
2009 Admission to the Bar of the Canton of Zug: Attorney at Law and Notary
2007-2008 Attorney Trainee at the Cantonal Court of the Canton of Zug
2006-2007 Attorney Trainee at Stadlin Advokatur | Notariat, Zug
2001-2006 Universities of Zurich and Fribourg, lic. iur., Master of Law


  • SAV (Swiss Bar Association)
  • Advokatenverein des Kantons Zug (Zug Bar Association)


  • German (bilingue)
  • French (bilingue)
  • English

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