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This website provides you with comprehensive statistics on audit firms in Switzerland. You can do the following:

Lastest Auditor Changes

Company Name Domicile Engagement Start New Auditor Previous Auditor
GELOG AG Villmergen 07.07.2025 KEEL + PARTNER AG, St. Gallen Rovisa Wirtschaftsprüfungs AG, Dietikon
TRDemolition SA Genève 07.07.2025 Fidusafe SA, Vernier Synergie & Partenaires, Société Fiduciaire SA, Vernier
Green Forests GmbH Horw 07.07.2025 TSZ Treuhandgesellschaft Sauter + Co Zürich AG, Zürich Avanta Audit AG, Baar
Würth Management AG Rorschach 07.07.2025 KPMG AG, St. Gallen Ernst & Young AG, St. Gallen
Hydroliq Systems AG Luzern 07.07.2025 bepartner ag, Luzern Alpina Treuhand AG, Hergiswil (NW)
KSA Praxiszentrum AG Aarau 07.07.2025 Ernst & Young AG, Aarau PricewaterhouseCoopers AG, Aarau
SecuTix Group SA Pully 07.07.2025 BDO SA, Epalinges Ernst & Young SA, Renens (VD)
Hydroliq Solutions GmbH Luzern 07.07.2025 bepartner ag, Luzern Alpina Treuhand AG, Hergiswil (NW)
ELCA Holding SA Pully 07.07.2025 BDO SA, Epalinges Ernst & Young SA, Renens (VD)
Wohnbaugenossenschaft Ballwil Ballwil 07.07.2025 Aregger Spörri Bucheli AG, Kriens Lufida Revisions AG, Hochdorf
Playtronic GmbH Geroldswil 07.07.2025 Interrevision AG, St. Gallen Steuri + Partner AG, Embrach
vRbikes.ch ag Zug 07.07.2025 Honold Treuhand AG, Zürich Aeberli Treuhand AG, Zürich
ELCA Informatique SA Pully 07.07.2025 BDO SA, Epalinges Ernst & Young SA, Renens (VD)
Garage Relais Onex SA Onex 07.07.2025 Anca Fiduciaire SA, Genève Fidusynergie SA, Genève
Papperla Pub GmbH Zermatt 07.07.2025 Zenhäusern Treuhand AG, Visp Treuhand Taugwalder AG, Zermatt
HERTZEISEN SA Haute-Sorne 07.07.2025 FSK Fiduciaire SA, Courgenay Fiduciaire Simon Kohler S.A., Courgenay
Nicol SA Porrentruy 07.07.2025 CRF Conseil, Révision et Fiscalité SA, Delémont Berney Associés Audit SA, Genève
Hydroliq Group Holding AG Luzern 07.07.2025 bepartner ag, Luzern Alpina Treuhand AG, Hergiswil (NW)
SecuTix SA Pully 07.07.2025 BDO SA, Epalinges Ernst & Young SA, Renens (VD)
Ogilvy AG Zürich 07.07.2025 PricewaterhouseCoopers AG, Zürich Deloitte AG, Zürich

Evolution of the Swiss Audit Market

The chart depicts the evolution of active limited companies (AG, SA) and limited liability companies (GmbH, Sàrl) and shows how many of them have a statutory auditor. The decline is strongly related to the possibility of an opting-out for companies with up to ten employees which was introduced in 2008. At the same time, the number of new company registrations has increased significantly over the last years, thus reducing the audit rate for limited companies and limited liability companies from around 64% in 2005 to currently less than 20%.