Your Fiduciary Service Provider in Central Switzerland since 1997

N & W Treuhand GmbH

About us

N & W Treuhand GmbH was set up by Klaus Niederberger & Yvonne Wyder in Dallenwil on 1st January 1997.

Our core business is in fiduciary services, together with all their associated functions. We support small and medium-sized enterprises, working as a partner alongside you and preparing practical, made-to-measure approaches to solving problems that help you achieve sustainable success.

Our customer base includes sole traders and legal entities in the service provision, trade and commerce sectors. We specialise in looking after English-speaking clients in the international environment.

We continuously update our education and training and have accumulated many years of practical experience, so we are perfectly placed to offer you high-quality, efficient services and fair prices.


Yvonne Niederberger

  • Swiss Certified Fiduciary (Eidg. dipl. Treuhandexpertin)
  • Master of Advanced Studies in fiduciary services and business management (MAS FH Treuhand & Unternehmensberatung)

Specialist professional sectors:

  • International accounts in English 
  • Salary mandates, int. businesses

Klaus Niederberger

  • Swiss Certified Fiduciary (Treuh√§nder mit eidg. Fachausweis)

Specialist professional sectors:

  • Salary mandates, various sectors/sizes
  • Reorganisations

Michael Z'Rotz

  • Currently undergoing commercial training