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Fact Sheet May-Treuhand AG

Core Company Information
Company Name May-Treuhand AG
UID CHE-107.796.843
Alternative / previous Names -
Domicile Muttenz
Canton BL
Legal Form Limited corporation
Inscription Date 22.03.1978
FAOA Information
FAOA ID 500179
RAB Permission licensed audit expert
FAOA License active (since 09.06.2008)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations TREUHAND|SUISSE
Number of auditors with permission 3  (17.67 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 13.3 years (max.: 33.7 years)

Total number of statutory audit clients: 53 (Ranked #157 in Switzerland)

Change in number of audit engagements: -1 (since 31.12.2025), +2 (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 SO ∑
Limited corporation 2 1 29 7 2 41
Limited liability company       2   2
Foundation   1 3 5   9
Cooperative     1     1
∑ 2 2 33 14 2 53

This audit firm is recorded as statutory auditor for 29 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
4Dvets AG CHE-349.527.847 Interlaken 02.10.2026 Auditor switch Muttenz
REAL-TECHNIK AG CHE-405.818.731 Kaiseraugst 01.07.2026 First auditor Muttenz
Grollimund AG CHE-193.091.812 Muttenz 19.06.2026 First auditor Muttenz
ValVac SA CHE-311.857.503 Ettingen 12.11.2025 Auditor switch Muttenz
Radio-Television-Foto Bürgi AG CHE-107.781.824 Therwil 11.11.2025 Auditor switch Muttenz
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
Bernhardt Inter Engineering Corp. AG CHE-103.344.436 Kaiseraugst 04.09.2026 Opting-out Muttenz
Herzog Sport AG CHE-107.792.176 Binningen 08.05.2026 Opting-out Muttenz
Interlachs AG in Liquidation CHE-108.064.553 Balsthal 16.07.2025 Auditor switch Muttenz
Dyhrberg AG CHE-101.322.139 Balsthal 11.07.2025 Auditor switch Muttenz
Spänhauer AG CHE-102.239.966 Muttenz 27.02.2025 Auditor switch Muttenz