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Fact Sheet COT Treuhand AG

Core Company Information
Company Name COT Treuhand AG
UID CHE-107.378.380
Alternative / previous Names -
Domicile Lyss
Canton BE
Legal Form Limited corporation
Inscription Date 23.12.1991
FAOA Information
FAOA ID 500559
RAB Permission licensed audit expert
FAOA License active (since 09.11.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations TREUHAND|SUISSE
Number of auditors with permission 4  (22.50 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.4 years (max.: 26 years)

Total number of statutory audit clients: 90 (Ranked #121 in Switzerland)

Change in number of audit engagements: -1 (since 31.12.2025), - (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 FR SO VD ZH ∑
Limited corporation 4 51 9 4   9 77
Limited liability company   4 1   1   6
Foundation   4         4
Cooperative   1         1
Association   2         2
∑ 4 62 10 4 1 9 90

This audit firm is recorded as statutory auditor for 39 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
liquitec AG CHE-331.264.559 Kirchberg (BE) 22.09.2026 First auditor Lyss
lean key solutions AG CHE-191.024.360 Wil (ZH) 10.09.2026 First auditor Lyss
Meierexpress Sàrl CHE-106.114.861 Vully-les-Lacs 27.08.2026 Auditor switch Lyss
Bureaurama H. Brönnimann AG CHE-105.926.282 Biel/Bienne 17.12.2025 Auditor switch Lyss
Verein Jugendschutz in den Medien CHE-159.926.320 Bern 06.10.2025 Auditor switch Lyss
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
XS Holding AG CHE-114.112.545 Aarberg 22.09.2026 Opting-out Lyss
XS Stellen AG CHE-108.259.878 Aarberg 22.09.2026 Opting-out Lyss
Sportanlage TEC-GmbH CHE-111.964.055 Lenk 17.04.2026 Auditor switch Lyss
Nyla Immobilien GmbH CHE-107.207.554 Studen (BE) 03.05.2023 Opting-out Lyss
Natural Reisen Biel AG CHE-112.719.073 Biel/Bienne 12.04.2023 Auditor switch Lyss