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Fact Sheet Ryser Audit AG

Core Company Information
Company Name Ryser Audit AG
UID CHE-287.263.502
Alternative / previous Names -
Domicile Zürich
Canton ZH
Legal Form Limited corporation
Inscription Date 22.04.2024
FAOA Information
FAOA ID 505515
RAB Permission licensed audit expert
FAOA License active (since 12.06.2024)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations -
Number of auditors with permission 2  (13.00 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 9.7 years (max.: 29.1 years)

Total number of statutory audit clients: 26 (Ranked #187 in Switzerland)

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

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

  TG ZG ZH ∑
Limited corporation   3 11 14
Foundation 1   8 9
Association     3 3
∑ 1 3 22 26

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Related audit firms

Network:

Total number of audit engagements across the network: 29

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
Stiftung zur Förderung einer behindertengerechten, baulichen Umwelt CHE-104.030.147 Zürich 10.06.2026 Auditor switch Zürich
Marie Meierhofer Institut für das Kind CHE-107.845.393 Zürich 08.06.2026 First auditor Zürich
EIO Lack- und Farbenfabrik AG CHE-101.904.985 Wädenswil 14.04.2026 Auditor switch Zürich
Jafram AG CHE-107.997.241 Schlieren 14.04.2026 Auditor switch Zürich
Möbel-Transport AG CHE-105.919.916 Schlieren 10.04.2026 Auditor switch Zürich
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
L.B. Foundation CHE-113.018.731 Zollikon 30.04.2026 Auditor switch Zürich
Stiftung compagna conviva CHE-373.026.959 Zürich 26.03.2026 Auditor switch Zürich
Greater Zurich Area AG CHE-101.003.674 Zürich 02.02.2026 Auditor switch Zürich
PRO FILIA, Kantonalverein Zürich CHE-114.490.941 Zürich 01.09.2025 Auditor switch Zürich