Fact Sheet Aeberli Treuhand AG

Audit services

• limited statutory examination (art. 727a CO)
• ordinary statutory audit (art. 727 CO)
• audit of incorporation or capital increase reports (art. 635a and 652f CO)
• audit of capital decreases (art. 653m CO)
• audit in relation to early distribution of assets (art. 745 CO)
• audits in the context of the merger law
• limited statutory examination according to art. 725a CO
• reviews (according to ISRE 2400 or ISRE 2410)
• audit of the equal pay analysis (art. 13d GEA)

Non-audit services

• accounting and fiduciary services
• consulting
• tax consulting
• due diligence
• valuation services

Covered accounting standards

• CO (Code of Obligations)
• Swiss GAAP FER
• IFRS (International Financial Reporting Standards)

Covered languages

• German
• French
• English
• Italian

Average engagement duration: 9.4 years (max.: 33.1 years)

Total number of statutory audit clients: 232 (Ranked #45 in Switzerland)

Change in number of audit engagements: +5 (since 31.12.2025), +2 (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 107 deleted entities. These are not included in the table above.

Display client list

The 232 statutory audits are performed by the branch offices as indicated in the table below.

Show client list for Zug, Zürich.

Direct personal relationship:

• Audit Treuhand AG (CHE-100.983.841), 9 audit engagements
• WPB AG in Liquidation (CHE-104.527.212), 0 audit engagements
• Lenz Treuhand AG (CHE-113.916.280), 30 audit engagements

Further connections:

• Paradowski Treuhand AG in Liquidation (CHE-108.448.296), 0 audit engagements