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Fact Sheet Brunner et Associés SA, société fiduciaire

Core Company Information
Company Name Brunner et Associés SA, société fiduciaire
UID CHE-107.962.254
Alternative / previous Names Cecosa SA
Domicile Neuchâtel
Canton NE
Legal Form Limited corporation
Inscription Date 29.11.1991
FAOA Information
FAOA ID 501010
RAB Permission licensed audit expert
FAOA License active (since 22.11.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (2) Brunner et Associés SA, société fiduciaire, succursale de Genève (CHE-160.274.300) in Genève (GE)
Brunner et Associés SA, société fiduciaire, succursale de La Chaux-de-Fonds (CHE-241.844.545) in La Chaux-de-Fonds (NE)
Membership in Associations EXPERTsuisse
TREUHAND|SUISSE
Number of auditors with permission 8  (25.50 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 11.3 years (max.: 33.3 years)

Total number of statutory audit clients: 204 (Ranked #53 in Switzerland)

Change in number of audit engagements: +4 (since 31.12.2025), +4 (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 BS FR GE NE SZ VD VS ZG ZH ∑
Limited corporation 6 1 1 14 101 2 6 1 1 2 135
Limited liability company 1   1 2 13           17
Foundation     2 16 28     1     47
Cooperative         2           2
Association         3           3
∑ 7 1 4 32 147 2 6 2 1 2 204

This audit firm is recorded as statutory auditor for 107 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 204 statutory audits are performed by the branch offices as indicated in the table below.

  BE BS FR GE NE SZ VD VS ZG ZH ∑
Genève     1 21             22
La Chaux-de-Fonds         1           1
Neuchâtel 7 1 3 11 146 2 6 2 1 2 181
∑ 7 1 4 32 147 2 6 2 1 2 204

Show client list for Genève, La Chaux-de-Fonds, Neuchâtel.

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
Optigestion Services Immobiliers SA CHE-102.119.463 Neuchâtel 13.10.2026 Auditor switch Neuchâtel
CAD2525 SA CHE-367.504.844 Le Landeron 22.09.2026 First auditor Neuchâtel
Grandjean Transports S.A. CHE-105.955.639 Le Locle 03.07.2026 Auditor switch Neuchâtel
Web-Romandie SA CHE-115.582.089 Milvignes 02.07.2026 First auditor Neuchâtel
Cabinet Médical Santé 360 Sàrl CHE-412.617.787 La Chaux-de-Fonds 03.06.2026 First auditor Neuchâtel
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
Plair SA CHE-270.490.998 Perly-Certoux 11.09.2026 Auditor switch Genève
Château d'Agel Suisse Sàrl CHE-431.135.810 Teufen (AR) 07.09.2026 Opting-out Neuchâtel
MAG45 Switzerland Sàrl CHE-265.557.148 La Chaux-de-Fonds 20.08.2026 Discontinued Neuchâtel
UDITIS SA CHE-105.513.566 Neuchâtel 28.05.2026 Auditor switch Neuchâtel
dbi services sa CHE-115.853.816 Delémont 18.05.2026 Auditor switch Neuchâtel