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Fact Sheet Duttweiler & Partner Wirtschaftsprüfung AG

Core Company Information
Company Name Duttweiler & Partner Wirtschaftsprüfung AG
UID CHE-113.952.407
Alternative / previous Names -
Domicile Liestal
Canton BL
Legal Form Limited corporation
Inscription Date 28.11.2007
FAOA Information
FAOA ID 502446
RAB Permission licensed audit expert
FAOA License active (since 27.12.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations EXPERTsuisse
Number of auditors with permission 5  (23.20 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.5 years (max.: 31.4 years)

Total number of statutory audit clients: 116 (Ranked #100 in Switzerland)

Change in number of audit engagements: -3 (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.

  AG BE BL BS FR JU SO ZH
Limited corporation   2 50 10 2 1 1 1 67
Limited liability company     8 1         9
Foundation 1 1 23 2         27
Cooperative     6 3         9
Association     3         1 4
1 3 90 16 2 1 1 2 116

This audit firm is recorded as statutory auditor for 16 deleted entities. These are not included in the table above.

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Latest audit engagements
These are this auditor's latest audit engagements.
 
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
Wohngenossenschaft Wettstein CHE-101.683.301 Basel 05.05.2026 Auditor switch Liestal
Aenis Sicherheit GmbH CHE-114.153.260 Sissach 08.01.2026 First auditor Liestal
Alters- und Pflegeheim Madle, Pratteln CHE-108.041.457 Pratteln 29.08.2025 Auditor switch Liestal
thuba AG CHE-101.743.156 Allschwil 28.08.2025 Auditor switch Liestal
Baumgartner Gärtnerei AG CHE-101.997.490 Ziefen 18.08.2025 Auditor switch Liestal
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
Wilhelm und Ida Hertner-Strasser Stiftung CHE-109.746.804 Zwingen 28.04.2026 Auditor switch Liestal
kajelini Holding AG CHE-115.304.515 Zwingen 01.04.2026 Auditor switch Liestal
MT Robot AG CHE-114.132.223 Breitenbach 23.03.2026 Auditor switch Liestal
Flaigg AG CHE-108.093.537 Aesch (BL) 13.01.2026 Auditor switch Liestal
Verein Genuss aus Stadt und Land CHE-362.260.126 Basel 21.10.2025 Auditor switch Liestal