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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
Kraftwerk Ryburg-Schwörstadt AG Rheinfelden 15.05.2025 KPMG AG, Zürich KPMG AG, Basel
Alterssiedlung Albert Näf-Hallauer Zürich 15.05.2025 BDO AG, Zürich Rebex AG, Dietikon
Steiner AG Zürich 15.05.2025 Aeberli Treuhand AG, Zürich Deloitte AG, Zürich
Arctys GmbH Ebikon 15.05.2025 OPTEX Audit AG, Kriens Segmüller Treuhand AG, Luzern
Advertising, Art & Ideas Ltd Zürich 15.05.2025 Rupert Herzog Treuhand und Revisions AG, Salenstein Steuer-Bilanz-Treuhand AG, Zürich
Zemango Industries Aktiengesellschaft Zug 15.05.2025 B + H Treuhand AG, Inwil MT TREUHAND AG, Zug
Michele Arnaboldi Architetti Sagl Minusio 15.05.2025 Fiduciaria Sartori & Associati SA, Locarno Massimiliano Tasinato, Fiduciario con attestato professionale federale, Bellinzona
WWH Operations AG Zug 15.05.2025 B + H Treuhand AG, Inwil MT TREUHAND AG, Zug
Wiederkehr Recycling AG Waltenschwil 15.05.2025 OBT AG, Zürich Avanta Audit AG, Baar
DSM-Firmenich AG Kaiseraugst 15.05.2025 PricewaterhouseCoopers AG, Basel KPMG AG, Basel
Wierec Services GmbH Waltenschwil 15.05.2025 OBT AG, Zürich Avanta Audit AG, Baar
WWH Holding Aktiengesellschaft Zug 15.05.2025 B + H Treuhand AG, Inwil MT TREUHAND AG, Zug
WG-Treuhand AG Basel 15.05.2025 BDO AG, Basel RST Treuhand AG, Basel
Probst + Eggimann AG Belp 15.05.2025 SRG Schweizerische Revisionsgesellschaft AG, Bern Brand AG Treuhand und Revision, Bern
e + h Services AG Däniken 15.05.2025 OBT AG, Brugg Ernst & Young AG, Bern
MLS Maple Leaf Stadiums AG Lindau 15.05.2025 ConSinius Treuhand AG, Dietikon Limmat Audit AG, Zürich
SA-LI Solution GmbH Fisibach 15.05.2025 Audita GmbH, Tegerfelden Argus Revisionen GmbH, Dietlikon
Mirva Holding SA Delémont 14.05.2025 Siegenthaler Revision AG, Ittigen FIDAG Jura SA, Delémont
Pro Montagna Stiftung Glarus 14.05.2025 Effida Treuhand und Revisionen AG, Mellingen Bernet & Lehner Treuhand AG, Glarus
FONDATION FOYER-HANDICAP Carouge (GE) 14.05.2025 FIDUCIAIRE CHAVAZ SA, Carouge (GE) OGH expertises comptables et fiscales SA, Genève

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%.