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Fact Sheet ConSinius Treuhand AG

Core Company Information
Company Name ConSinius Treuhand AG
UID CHE-104.117.771
Alternative / previous Names FTZ Fidius Treuhand Zürich AG (until 11.12.2014)
Domicile Dietikon
Canton ZH
Legal Form Limited corporation
Inscription Date 24.04.1987
FAOA Information
FAOA ID 503987
RAB Permission licensed audit expert
FAOA License active (since 25.03.2009)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations -
Number of auditors with permission 2  (14.00 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 6.5 years (max.: 30.2 years)

Total number of statutory audit clients: 28 (Ranked #179 in Switzerland)

Change in number of audit engagements: +1 (since 31.12.2025), +3 (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 LU SZ ZG ZH ∑
Limited corporation 3 1 1 2 13 20
Limited liability company   3     4 7
Foundation         1 1
∑ 3 4 1 2 18 28

This audit firm is recorded as statutory auditor for 5 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
AG für innovative Finanzdienstleistungen CHE-101.168.358 Freienbach 13.04.2026 Auditor switch Dietikon
AGFIF International AG CHE-111.693.873 Risch 27.03.2026 Auditor switch Dietikon
Immo Invest Partner AG CHE-113.839.981 Opfikon 06.03.2026 Auditor switch Dietikon
Somapharm AG CHE-106.510.381 Baar 24.12.2025 Auditor switch Dietikon
MATEX Facility Services GmbH CHE-455.294.422 Dietlikon 02.12.2025 First auditor Dietikon
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
OMR Group AG CHE-313.054.975 Baar 13.10.2026 Auditor switch Dietikon
Portfolio Immobilien AG CHE-101.258.381 Obersiggenthal 28.04.2026 Opting-out Dietikon
Gode AG Zürich, Ingenieurgesellschaft für Elektrotechnik CHE-107.831.250 Zürich 29.07.2025 Auditor switch Dietikon
Stiftung Allegria CHE-229.577.528 Zürich 27.06.2024 Discontinued Dietikon
Trinacrium AG CHE-114.309.941 Zürich 09.11.2023 Opting-out Dietikon