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Fact Sheet WG-Treuhand AG

Core Company Information
Company Name WG-Treuhand AG
UID CHE-113.859.765
Alternative / previous Names -
Domicile Basel
Canton BS
Legal Form Limited corporation
Inscription Date 10.10.2007
FAOA Information
FAOA ID 501872
RAB Permission licensed audit expert
FAOA License active (since 20.12.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations TREUHAND|SUISSE
Number of auditors with permission 3  (28.33 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 13.1 years (max.: 17.9 years)

Total number of statutory audit clients: 85 (Ranked #125 in Switzerland)

Change in number of audit engagements: -2 (since 31.12.2025), +1 (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 ZH ∑
Limited corporation 1 2 7 6   16
Limited liability company     2   1 3
Foundation       5   5
Cooperative     11 50   61
∑ 1 2 20 61 1 85

This audit firm is recorded as statutory auditor for 11 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
Wohngenossenschaft Grünfeld CHE-101.922.931 Riehen 12.11.2025 Auditor switch Basel
Drinks of the World Holding GmbH CHE-114.568.371 Zürich 14.10.2025 First auditor Basel
Praxis Claravita AG CHE-330.714.896 Basel 09.09.2025 First auditor Basel
A. Meyer AG CHE-106.610.427 Therwil 28.01.2025 Auditor switch Basel
Senioren Wohngenossenschaft Münchenstein CHE-111.727.609 Münchenstein 27.03.2024 Auditor switch Basel
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
Wohngenossenschaft Wettstein CHE-101.683.301 Basel 05.05.2026 Auditor switch Basel
Wohngenossenschaft Breite CHE-103.448.202 Basel 01.04.2026 Auditor switch Basel
Zollimpex AG CHE-105.824.948 Pratteln 29.04.2025 Auditor switch Basel
School Of Rock GmbH CHE-264.395.512 Münchenstein 08.04.2025 Auditor switch Basel
Holzbau Gisin AG CHE-106.785.363 Lauwil 13.01.2025 Auditor switch Basel