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Fact Sheet HST Treuhand AG

Core Company Information
Company Name HST Treuhand AG
UID CHE-103.337.991
Alternative / previous Names Treuhand Hans Wüthrich AG, Steffisburg
Domicile Thierachern
Canton BE
Legal Form Limited corporation
Inscription Date 29.04.1977
FAOA Information
FAOA ID 500483
RAB Permission licensed audit expert
FAOA License active (since 26.10.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations -
Number of auditors with permission 4  (22.50 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 7.7 years (max.: 17.5 years)

Total number of statutory audit clients: 90 (Ranked #124 in Switzerland)

Change in number of audit engagements: +2 (since 31.12.2025), +13 (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 BS GE SG TG ZH ∑
Limited corporation   38         4 42
Limited liability company   10         1 11
Foundation   13 1   1 1 1 17
Cooperative   5           5
Association 1 7   1 1 1 4 15
∑ 1 73 1 1 2 2 10 90

This audit firm is recorded as statutory auditor for 17 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
Wärmeverbund Schwanden AG CHE-171.376.838 Köniz 09.01.2026 Auditor switch Thierachern
Weber Verlag AG CHE-376.840.726 Thun 09.01.2026 First auditor Thierachern
Kaformatik AG CHE-106.505.687 Spiez 11.12.2025 Auditor switch Thierachern
PopNet Informatik AG CHE-109.348.071 Spiez 05.12.2025 Auditor switch Thierachern
Schöni Cars AG CHE-114.054.190 Wynau 03.12.2025 First auditor Thierachern
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
Bieri Food AG CHE-100.262.138 Eschenbach (SG) 13.08.2025 Auditor switch Thierachern
Santschi Möbel und Innenausbau AG CHE-102.218.711 Thierachern 28.04.2025 Auditor switch Thierachern
Stiftung Amazing Grace CHE-268.103.559 Bowil 12.07.2024 Opting-out Thierachern
H. Ringgenberg, Belp AG CHE-107.208.708 Belp 28.06.2024 Opting-out Thierachern
Ena (Schweiz) CHE-107.310.229 Zürich 07.06.2024 Auditor switch Thierachern