Audit Firms

Get detailed statistics about any audit firm in Switzerland. Just type the auditor name in the field below and off you go!

Core Company Information

Company Name	TRZ Treuhand Zulauf AG
UID	CHE-106.767.649
Alternative / previous Names	TRZ Treuhand und Revisions AG
Domicile	Büren an der Aare
Canton	BE
Legal Form	Limited corporation
Firm Inscription Date	26.02.1991

FAOA Information

FAOA ID	501397
RAB Permission	licensed audit expert
FAOA License	active (since 06.12.2007)
Link to FAOA website	View auditor profile at FAOA
Branch offices (0)	-
Membership in Associations	TREUHAND\|SUISSE veb.ch
Number of auditors with permission	3 (3.00 audit engagements per employee on average)

Auditor Statistics

Average engagement duration: 19.5 years (max.: 28.5 years)

Total number of statutory audit engagements: 9 (Ranked #200 in Switzerland)

Change in number of audit engagements: -1 (since 31.12.2023), -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.

This audit firm is recorded as statutory auditor for 11 deleted entities. These are not included in the table above.

Related audit firms

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
Zaugg Emballeur AG	CHE-211.405.773	Biel/Bienne	28.06.2022	First auditor	Büren an der Aare
Fondazione Collezione Ferroviaria Rohrer	CHE-441.944.691	Grossaffoltern	12.11.2019	First auditor	Büren an der Aare
Wohnen Werken Worben WOWEWO	CHE-109.698.594	Worben	20.05.2009	Auditor switch	Büren an der Aare
bielmann-expert.ch GmbH	CHE-114.829.844	Düdingen	28.04.2009	First auditor	Büren an der Aare
Hans Lauper-Krüger Stiftung in Liquidation	CHE-110.380.348	Pieterlen	08.07.2008	First auditor	Büren an der Aare

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
BusinessCom AG	CHE-112.327.448	Burgdorf	01.02.2024	Auditor switch	Büren an der Aare
Fondazione Collezione Ferroviaria Rohrer	CHE-441.944.691	Grossaffoltern	02.05.2022	Opting-out	Büren an der Aare
Elpex Immobilien AG	CHE-101.101.288	Kirchberg (BE)	02.03.2022	Auditor switch	Büren an der Aare
De Gregorio SA	CHE-105.906.457	Biel/Bienne	17.06.2020	Opting-out	Büren an der Aare
Stiftung Pflegebildung Seeland PBS	CHE-106.124.374	Biel/Bienne	10.01.2020	Auditor switch	Büren an der Aare