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Fact Sheet von Gunten, Häseli & Partner AG

Core Company Information
Company Name von Gunten, Häseli & Partner AG
UID CHE-107.901.169
Alternative / previous Names Dr. Ed. Rüsch Treuhand AG (until 22.01.2001)
Dr. Rüsch & Partner AG (until 21.11.2006)
Dr. Rüsch, Häseli & Partner AG (until 17.12.2012)
Domicile St. Gallen
Canton SG
Legal Form Limited corporation
Inscription Date 04.07.1975
Takeovers: Artium Wirtschaftsprüfung GmbH (CHE-113.624.854), per 17.12.2014
Dr. Rüsch & Dr. Rietmann AG (CHE-107.891.766), per 11.09.2025
von Gunten Treuhand AG (CHE-107.140.418), per 28.03.2013
FAOA Information
FAOA ID 500885
RAB Permission licensed audit expert
FAOA License active (since 13.12.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations EXPERTsuisse
Number of auditors with permission 5  (26.20 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.5 years (max.: 33.4 years)

Total number of statutory audit clients: 131 (Ranked #92 in Switzerland)

Change in number of audit engagements: -1 (since 31.12.2025), +11 (over the last 12 months)

Details regarding the distribution of the audit engagements across legal forms and cantons are depicted in the table below.

  AG AR BL GR LU SG TG ZH ∑
Limited corporation 1 9 1 1   54 14 12 92
Limited liability company   1       2 1   4
Foundation 1 4     1 17 8   31
Cooperative   1       1 1   3
Association           1     1
∑ 2 15 1 1 1 75 24 12 131

This audit firm is recorded as statutory auditor for 42 deleted entities. These are not included in the table above.

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Latest audit engagements
These are this auditor's latest audit engagements.
 
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
DLFG Holding AG CHE-486.477.823 St. Gallen 24.12.2025 First auditor St. Gallen
Stiftung AccessAbility CHE-453.346.048 Luzern 26.11.2025 Auditor switch St. Gallen
Arbonia Vorsorge CHE-109.762.720 Arbon 28.10.2025 Auditor switch St. Gallen
Sozialfonds Arbonia CHE-110.158.264 Arbon 28.10.2025 Auditor switch St. Gallen
Fabian Hächler AG CHE-177.676.931 Winterthur 14.10.2025 First auditor St. Gallen
Discontinued audit engagements
The following audit engagements were lost recently, either to a competitor, due to auditor resignation or due to an opting out.
 
Client Name Client UID Domicile End Date Reason Auditor Branch
Verein "bin fit" in Liquidation CHE-133.116.041 Uzwil 03.02.2026 Discontinued St. Gallen
herzog systems ag CHE-107.261.588 Flawil 22.10.2024 Auditor switch St. Gallen
Bleiker AG CHE-107.937.026 Herisau 03.10.2024 Opting-out St. Gallen
Augenlaser Centrum St. Gallen AG CHE-109.069.777 St. Gallen 12.03.2024 Opting-out St. Gallen
REATO CHANGE MANAGEMENT GmbH CHE-333.444.440 Sennwald 13.09.2023 Opting-out St. Gallen