Audit Treuhand AG - Audit Firms

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Core Company Information

FAOA Information

FAOA ID	501123
RAB Permission	licensed audit expert
FAOA License	active (since 28.02.2008)
Link to FAOA website	View auditor profile at FAOA
Branch offices (0)	-
Membership in Associations	TREUHAND\|SUISSE veb.ch
Number of auditors with permission	6 (3.33 audit engagements per employee on average)

Auditor Statistics

Average engagement duration: 11.6 years (max.: 21.4 years)

Total number of statutory audit engagements: 20 (Ranked #185 in Switzerland)

Change in number of audit engagements: -6 (since 31.12.2024), -10 (over the last 12 months)

Details regarding the distribution of the audit engagements across legal forms and cantons are depicted in the table below.

This audit firm is recorded as statutory auditor for 14 deleted entities. These are not included in the table above.

Related audit firms

Direct personal relationship:

Aeberli Treuhand AG (CHE-101.652.973), 213 audit engagements
Argo Consilium AG (CHE-106.829.049), 99 audit engagements
Gasser Wepf & Partner AG (CHE-107.433.932), 29 audit engagements
Audit Suisse AG (CHE-112.451.953), 154 audit engagements
WPB AG in Liquidation (CHE-104.527.212), 0 audit engagements
Paradowski Treuhand AG in Liquidation (CHE-108.448.296), 0 audit engagements
Premium Audit & Consulting GmbH (CHE-337.189.206), 8 audit engagements

Latest audit engagements

These are this auditor's latest audit engagements.

Client Name	Client UID	Domicile	Start Date	Type of switch	Auditor Branch
Toblerplatz-Drogerie Kurt Häfliger AG	CHE-107.826.349	Zürich	20.10.2023	Auditor switch	Horgen
Kidssmile Foundation	CHE-374.057.448	Zürich	10.05.2023	First auditor	Horgen
Kitro SA	CHE-215.007.526	Ecublens (VD)	05.12.2022	First auditor	Horgen
Sanos Group AG	CHE-233.710.575	Wallisellen	18.10.2022	First auditor	Horgen
inAut GmbH	CHE-171.636.407	Luzern	21.06.2021	First auditor	Horgen

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
inAut GmbH	CHE-171.636.407	Luzern	15.07.2025	Auditor switch	Horgen
Kidssmile Foundation	CHE-374.057.448	Zürich	15.07.2025	Auditor switch	Horgen
BZ Berater Zentrum AG	CHE-110.096.321	Zollikon	13.05.2025	Auditor switch	Horgen
Corestate Capital Services GmbH	CHE-207.397.372	Freienbach	28.03.2025	Auditor switch	Horgen
Projekt Interim Zürich GmbH	CHE-350.012.389	Zürich	22.01.2025	Auditor switch	Horgen