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

Fact Sheet PRT Revisions & Treuhand AG

Core Company Information
Company Name PRT Revisions & Treuhand AG
Company UID CHE-105.269.596
Alternative / previous Names -
Domicile Winterthur
Canton ZH
Legal Form Limited corporation
Firm Inscription Date 28.10.1999
Takeovers: PRT Pauli & Rechsteiner Treuhand AG in Liquidation (ADM-491.286.401), per 11.09.2001
FAOA Information
FAOA ID 502578
RAB Permission licensed audit expert
FAOA License active
Link to FAOA website View auditor profile at FAOA
Branch offices (1) PRT Revisions & Treuhand AG (CHE-439.875.773) in Gossau (SG) (SG)
Membership in Associations TREUHAND|SUISSE
Number of auditors with permission 4  (13.75 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 11.6 years (max.: 27.6 years)

Total number of statutory audit engagements: 55 (Ranked #149 in Switzerland)

Change in number of audit engagements: +4 (since 31.12.2021), +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.

  Basel Stadt Schwyz Thurgau Zürich
Limited corporation   2 4 32 38
Limited liability company       9 9
Foundation 1     4 5
Cooperative 1     1 2
Association       1 1
2 2 4 47 55

This auditor is recorded as statutory auditor for 25 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 55 statutory audits are performed by the branch offices as indicated in the table below.

  Basel Stadt Schwyz Thurgau Zürich
Winterthur 2 2 4 47 55
2 2 4 47 55

Show client list for Winterthur.

Related audit firms

Same domicile: 

Latest audit engagements
These are this auditor's latest audit engagements.
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
Mosimann & Partner AG CHE-106.043.758 Zürich 04.08.2022 Auditor switch Winterthur
Villa Ninck AG CHE-227.972.693 Winterthur 03.08.2022 First auditor Winterthur
Beemerging GmbH CHE-112.245.514 Winterthur 28.06.2022 First auditor Winterthur
HereOnAir GmbH CHE-494.593.443 Zürich 31.03.2022 First auditor Winterthur
AKOMPA GmbH CHE-364.252.592 Winterthur 21.07.2021 First auditor Winterthur
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
aawi treuhand ag CHE-106.479.038 Wetzikon (ZH) 28.09.2021 Opting-out Winterthur
GEKA-Management Verlags AG CHE-103.937.955 Zufikon 12.01.2021 Opting-out Winterthur
Plaz Immobilien Treuhand AG CHE-100.923.276 Oftringen 23.11.2020 Auditor switch Winterthur
Gustave Kaeser S.A. CHE-108.013.739 Meilen 09.11.2020 Opting-out Winterthur
Cucina Pero AG CHE-105.217.903 Egg 18.02.2020 Opting-out Winterthur