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Fact Sheet Mäder + Baumgartner Treuhand AG

Core Company Information
Company Name Mäder + Baumgartner Treuhand AG
UID CHE-103.815.364
Alternative / previous Names -
Domicile Neuhausen am Rheinfall
Canton SH
Legal Form Limited corporation
Inscription Date 09.07.1975
FAOA Information
FAOA ID 504645
RAB Permission licensed audit expert
FAOA License active (since 07.12.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations EXPERTsuisse
TREUHAND|SUISSE
Number of auditors with permission 6  (20.00 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 14.4 years (max.: 31.3 years)

Total number of statutory audit clients: 120 (Ranked #97 in Switzerland)

Change in number of audit engagements: - (since 31.12.2025), +4 (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 FR GL LU SG SH SZ TG ZG ZH ∑
Limited corporation 1 2 3 1 1   6 47 1 5 2 14 83
Limited liability company       1   1 1 4       1 8
Foundation               20   2   1 23
Cooperative               3       1 4
Association               1         1
Special legal forms               1         1
∑ 1 2 3 2 1 1 7 76 1 7 2 17 120

This audit firm is recorded as statutory auditor for 74 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
Anklin Holding 2 AG CHE-477.263.909 Reinach (BL) 09.01.2026 First auditor Neuhausen am Rheinfall
KARL STORZ Endoskope Schweiz AG CHE-110.547.565 Reinach (BL) 09.01.2026 Auditor switch Neuhausen am Rheinfall
Wanner Internationale Transporte AG CHE-106.928.527 Schaffhausen 08.08.2025 Auditor switch Neuhausen am Rheinfall
Plafondplan AG CHE-147.188.176 Cham 30.07.2025 First auditor Neuhausen am Rheinfall
iPet.ch GmbH CHE-115.076.981 Gurmels 22.07.2025 Auditor switch Neuhausen am Rheinfall
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
Küng Blockflöten GmbH CHE-110.129.386 Schaffhausen 23.01.2026 Auditor switch Neuhausen am Rheinfall
Swiss Private Placement AG CHE-286.941.601 Zug 08.07.2025 Auditor switch Neuhausen am Rheinfall
Maximum Solution Consulting Group GmbH CHE-165.450.165 Wollerau 01.10.2024 Auditor switch Neuhausen am Rheinfall
Scherrer Gebäudetechnik AG CHE-108.416.646 Neuhausen am Rheinfall 24.07.2023 Auditor switch Neuhausen am Rheinfall
Viendis AG CHE-114.032.656 Beringen 27.07.2022 Opting-out Neuhausen am Rheinfall