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Fact Sheet ATTEST audit & consulting SA

Core Company Information
Company Name ATTEST audit & consulting SA
UID CHE-110.364.869
Alternative / previous Names -
Domicile Lugano
Canton TI
Legal Form Limited corporation
Inscription Date 29.12.2003
Takeovers: Udo Schiller Consulting (CHE-111.699.278), per 24.09.2024
FAOA Information
FAOA ID 505479
RAB Permission licensed audit expert
FAOA License active (since 11.07.2023)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations EXPERTsuisse
SwissAccounting
Number of auditors with permission 3  (11.33 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 6.6 years (max.: 19.5 years)

Total number of statutory audit clients: 34 (Ranked #181 in Switzerland)

Change in number of audit engagements: +2 (since 31.12.2025), +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.

  AG GE TI ZG ZH ∑
Limited corporation 1 1 21 1   24
Limited liability company     4   1 5
Foundation     4     4
Cooperative     1     1
∑ 1 1 30 1 1 34

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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
EUDAIMON SA CHE-418.984.899 Paradiso 04.05.2026 First auditor Lugano
PN Nutrition AG CHE-371.612.833 Zug 17.04.2026 First auditor Lugano
SIDERALLOYS INTL SA CHE-464.896.519 Lugano 03.11.2025 Auditor switch Lugano
SIDERALLOYS SA CHE-334.997.262 Lugano 03.11.2025 Auditor switch Lugano
Dreieck Fiduciaria SA CHE-108.161.860 Lugano 03.06.2025 Auditor switch Lugano
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
Publineon Sagl CHE-102.668.706 Agno 04.11.2025 Auditor switch Lugano
Finwood Development AG CHE-294.765.045 Genève 09.01.2025 Auditor switch Lugano
Haiyang Resources SA CHE-181.954.599 Genève 09.01.2025 Auditor switch Lugano
Lombardini Generalbau AG in liquidazione CHE-105.737.143 Silvaplana 07.11.2024 Opting-out Lugano