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Fact Sheet ST Schürmann Treuhand AG

Core Company Information
Company Name ST Schürmann Treuhand AG
UID CHE-368.403.482
Alternative / previous Names Gross Treuhand AG (until 17.12.2021)
Domicile Egerkingen
Canton SO
Legal Form Limited corporation
Inscription Date 25.02.2011
Takeovers: JAM Group AG (CHE-106.268.116)
FAOA Information
FAOA ID 505428
RAB Permission licensed audit expert
FAOA License active (since 14.01.2022)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations EXPERTsuisse
Number of auditors with permission 3  (20.33 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 12.4 years (max.: 31.1 years)

Total number of statutory audit clients: 61 (Ranked #153 in Switzerland)

Change in number of audit engagements: - (since 31.12.2025), +6 (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 BE BL BS LU SO TG ZG ZH ∑
Limited corporation 1 5 2   1 25 2 1 2 39
Limited liability company       1   4       5
Foundation           1       1
Cooperative   2     1 10       13
Special legal forms           3       3
∑ 1 7 2 1 2 43 2 1 2 61

This audit firm is recorded as statutory auditor for 1 deleted entities. These are not included in the table above.

Display client list

Latest audit engagements
These are this auditor's latest audit engagements.
 
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
AUGENWEIDE Kommunikation GmbH CHE-114.920.717 Zuchwil 02.12.2025 First auditor Egerkingen
Genossenschaft Alterswohnungen bim Spycher CHE-102.231.657 Roggwil (BE) 28.11.2025 Auditor switch Egerkingen
Genossenschaft betreutes Wohnen in Wynau CHE-109.879.440 Wynau 20.11.2025 Auditor switch Egerkingen
Brunner Informatik AG CHE-103.742.564 Ittigen 14.11.2025 Auditor switch Egerkingen
M + P Ingenieure AG CHE-391.802.199 Burgdorf 07.11.2025 Auditor switch Egerkingen
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
Oensingen-Balsthal-Bahn AG CHE-101.149.898 Balsthal 30.09.2025 Auditor switch Egerkingen
ESH Holding AG in Liquidation CHE-100.613.338 Egerkingen 03.11.2011 Opting-out Egerkingen