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Fact Sheet Lenz Treuhand AG

Core Company Information
Company Name Lenz Treuhand AG
UID CHE-113.916.280
Alternative / previous Names -
Domicile Zürich
Canton ZH
Legal Form Limited corporation
Inscription Date 08.11.2007
Takeovers: Frauenknecht Treuhand GmbH (CHE-257.284.037), per 07.11.2024
Treuhand Peter Lenz (CHE-107.931.779), per 14.12.2016
FAOA Information
FAOA ID 502033
RAB Permission licensed audit expert
FAOA License active (since 13.12.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (1) Lenz Treuhand AG (CHE-446.895.746) in Zürich (ZH)
Membership in Associations TREUHAND|SUISSE
Number of auditors with permission 4  (7.50 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 5.7 years (max.: 19.6 years)

Total number of statutory audit clients: 30 (Ranked #183 in Switzerland)

Change in number of audit engagements: +1 (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.

  BL LU SG UR VD ZG ZH
Limited corporation 1 1 7   1 1 12 23
Limited liability company     1       3 4
Foundation     1 1     1 3
1 1 9 1 1 1 16 30

This audit firm is recorded as statutory auditor for 4 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 30 statutory audits are performed by the branch offices as indicated in the table below.

  BL LU SG UR VD ZG ZH
Zürich 1 1 6 1 1   10 20
Zürich     3     1 6 10
1 1 9 1 1 1 16 30

Show client list for Zürich, Zürich.

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Direct personal relationship:

Latest audit engagements
These are this auditor's latest audit engagements.
 
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
RomandieFlor SA CHE-113.297.991 Denges 03.02.2026 Auditor switch Zürich
Heberlein-Stiftung CHE-110.143.972 Wattwil 03.11.2025 Auditor switch Zürich
wintivets AG CHE-446.132.157 Winterthur 10.10.2025 First auditor Zürich
Mirlo Urbano Architekten GmbH CHE-387.028.309 Zürich 19.09.2025 First auditor Zürich
miniSchoggi GmbH CHE-466.612.851 Wittenbach 23.07.2025 First auditor Zürich
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
FTK Immobilien AG CHE-231.863.216 Kaltbrunn 22.10.2025 Auditor switch Zürich
Federtechnik Group AG CHE-107.286.080 Kaltbrunn 08.10.2025 Auditor switch Zürich
Federtechnik Kaltbrunn AG CHE-499.904.645 Kaltbrunn 08.10.2025 Auditor switch Zürich
Egli Federnfabrik AG CHE-107.162.845 Volketswil 03.10.2025 Auditor switch Zürich
Feinstanz AG, Werkzeug- und Feinstanztechnik in Nachlassliquidation CHE-102.487.010 Rapperswil-Jona 16.12.2024 Auditor switch Zürich