• NSI


The artax group consists of experts in judiciary, business management, financial management, accountancy and auditing. 



Senior Partner

Bernhard Madörin

Dr. iur.

Tax and Fiduciary Expert

Licensed Audit Expert RAB  (Reg.109127)

Licensed Insurance Intermediary FINMA  (Reg.26800)



Francine Fimbel

Certified Accountant BTS CGE

Licensed Auditor RAB  (Reg.101120)

Urs Fischer


Fiduciary / VAT Specialist STS

Licensed Auditor RAB  (Reg.108426)

Michael Hasler 

Certified Fiduciary Specialist

Licensed Audit Expert RAB  (Reg.109145)

Fabian Egger

Certified Fiduciary Expert

Licensed Auditor RAB  (Reg. 110869)



Mariana R. Almeida Apprentice third year
Nisani Sivabalan Apprentice second year
Gadafi Fazlijevic M.Sc. in Business & Economics
Patrizia Kaufhold Certified Fiduciary Specialist
Real Estate Tax Specialist
Martin Limberger

B.A. in Business Administration
Certified accountant IHK

Sandra Rodoni Administrative Assistant
Denise Sollier Administrative Assistant / Accountant
Hedon Sulimani Business Economist FH
Dominic Suter lic. iur.
Tax and Mobility Specialist

External Associates


Bruno Ruh

Audit Counsel

Certified Public Accountant and Auditor

Licensed Audit Expert RAB  (Reg.103431)