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Fact Sheet Bösch Treuhand

Core Company Information
Company Name Bösch Treuhand
UID CHE-347.904.123
Alternative / previous Names -
Domicile Rorschach
Canton SG
Legal Form Sole proprietorship
Inscription Date 18.12.2012
Firm Deletion Date 06.07.2026
FAOA Information
FAOA ID 505144
RAB Permission licensed auditor
FAOA License cancelled (active from 13.06.2016 until 13.06.2026)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations TREUHAND|SUISSE
Number of auditors with permission -
Auditor Statistics

Average engagement duration: 4.4 years (max.: 9 years)

Total number of statutory audit clients: 3 (Ranked #205 in Switzerland)

Change in number of audit engagements: -6 (since 31.12.2025), -5 (over the last 12 months)

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

  Appenzell Ausserrhoden Thurgau ∑
Limited liability company   1 1
Foundation 2   2
∑ 2 1 3

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
Brugger & Läuffer Stiftung CHE-336.039.030 Schübelbach 17.10.2025 First auditor Rorschach
HolzBau Bissegger GmbH in Liquidation CHE-115.013.118 Altnau 25.07.2025 Auditor switch Rorschach
Bridging Nations Stiftung CHE-346.574.879 Küsnacht (ZH) 27.02.2025 First auditor Rorschach
Andreas und Heidi Keller-Stiftung CHE-446.811.123 St. Gallen 20.08.2024 Auditor switch Rorschach
Stiftung "Pro Trogen" CHE-110.384.949 Trogen 25.10.2023 Auditor switch Rorschach
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
Stiftung Wildvogelpflegestation CHE-304.420.294 St. Gallen 14.10.2026 Auditor switch Rorschach
Andreas und Heidi Keller-Stiftung CHE-446.811.123 St. Gallen 15.07.2026 Auditor switch Rorschach
Bridging Nations Stiftung CHE-346.574.879 Küsnacht (ZH) 05.05.2026 Auditor switch Rorschach
Prado Gastro AG CHE-101.299.658 Sisikon 01.05.2026 Opting-out Rorschach
Carl Sutter-Stiftung CHE-112.052.949 Schwende-Rüte 08.04.2026 Auditor switch Rorschach