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Fact Sheet FIDUSERVICE S.A.

Core Company Information
Company Name FIDUSERVICE S.A.
UID CHE-105.888.799
Alternative / previous Names Fiduservice W. Friz & R. Koller SA
Domicile Fribourg
Canton FR
Legal Form Limited corporation
Inscription Date 27.12.1982
FAOA Information
FAOA ID 502397
RAB Permission licensed audit expert
FAOA License active (since 14.02.2008)
Link to FAOA website View auditor profile at FAOA
Branch offices (2) FIDUSERVICE S.A. (CHE-491.427.162) in Genève (GE)
FIDUSERVICE S.A. (CHE-485.276.794) in Zürich (ZH)
FIDUSERVICE S.A. (CHE-328.304.520) in Bulle (FR)
Membership in Associations EXPERTsuisse
TREUHAND|SUISSE
SwissAccounting
Number of auditors with permission 3  (6.00 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 6.8 years (max.: 21 years)

Total number of statutory audit clients: 18 (Ranked #195 in Switzerland)

Change in number of audit engagements: -5 (since 31.12.2025), -7 (over the last 12 months)

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

  BE FR VD ∑
Limited corporation 1 12 2 15
Foundation   1 1 2
Cooperative     1 1
∑ 1 13 4 18

This audit firm is recorded as statutory auditor for 7 deleted entities. These are not included in the table above.

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Audit Engagements by Branch Office

The 18 statutory audits are performed by the branch offices as indicated in the table below.

  BE FR VD ∑
Fribourg 1 13 4 18
∑ 1 13 4 18

Show client list for Fribourg.

Related audit firms

Direct personal relationship:

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
Vitadent SA CHE-359.439.630 Fribourg 02.03.2026 Auditor switch Fribourg
Ecosa SA CHE-147.885.306 Bas-Intyamon 17.07.2024 Auditor switch Fribourg
TalkTo Sàrl CHE-283.630.961 Neuchâtel 05.02.2024 First auditor Fribourg
Constructions métalliques Mauron S.A. CHE-269.405.187 Châtonnaye 16.11.2023 Auditor switch Fribourg
Société Immobilière Imo S.A. CHE-102.440.770 Fribourg 13.10.2023 Auditor switch Fribourg
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
Ateliers Firmann SA CHE-492.922.688 Gruyères 05.03.2026 Auditor switch Fribourg
J. Oulevey S.A. CHE-106.997.072 Payerne 09.02.2026 Auditor switch Fribourg
Crinimax CLEMENT PEINTURE SA CHE-112.975.481 Gibloux 29.01.2026 Auditor switch Fribourg
Moncor Automobiles SA CHE-111.726.030 Villars-sur-Glâne 28.01.2026 Auditor switch Fribourg
Société Immobilière Imo S.A. CHE-102.440.770 Fribourg 28.01.2026 Auditor switch Fribourg