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Fact Sheet SEFID Revision AG

Core Company Information
Company Name SEFID Revision AG
UID CHE-101.379.211
Alternative / previous Names SEFID Révision SA, SEFID Audit Ltd
Abacor Revisionsgesellschaft, Abacor Compagnie de Révision, Abacor Auditing Company (until 14.03.2001)
ABT Revisionsgesellschaft, ABT Compagnie de Révision, ABT Auditing Company (until 12.12.2007)
ABT Revisionsgesellschaft AG, ABT Compagnie de Révision SA, ABT Auditing Company Ltd (until 30.09.2014)
Domicile Cham
Canton ZG
Legal Form Limited corporation
Inscription Date 13.12.1991
FAOA Information
FAOA ID 500686
RAB Permission licensed audit expert
FAOA License active (since 20.11.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations EXPERTsuisse
TREUHAND|SUISSE
SwissAccounting
Number of auditors with permission 4  (36.00 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.1 years (max.: 32.4 years)

Total number of statutory audit clients: 144 (Ranked #79 in Switzerland)

Change in number of audit engagements: -6 (since 31.12.2025), -6 (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 BL BS FR GR LU OW SG SZ TG TI ZG ZH ∑
Limited corporation 5 2 6   3 7   2 8 1 2 49 36 121
Limited liability company 1     1     1 2 2     2 5 14
Foundation                 1     2 4 7
Cooperative                       1 1 2
∑ 6 2 6 1 3 7 1 4 11 1 2 54 46 144

This audit firm is recorded as statutory auditor for 104 deleted entities. These are not included in the table above.

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Related audit firms

Network:

Total number of audit engagements across the network: 281

Further connections:

Latest audit engagements
These are this auditor's latest audit engagements.
 
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
Stiftung Liebfrauenhof CHE-109.821.334 Zug 05.02.2026 Auditor switch Cham
changesolutions GmbH CHE-198.396.006 Feusisberg 03.12.2025 First auditor Cham
Aerztezentrum Kelmatt AG CHE-400.741.400 Küssnacht (SZ) 28.11.2025 First auditor Cham
Lalique Holding SA CHE-440.668.293 Zürich 18.11.2025 First auditor Cham
Ultrasun AG CHE-103.939.902 Zürich 01.10.2025 Auditor switch Cham
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
ETEROM SA in liquidazione CHE-321.989.419 Gravesano 13.03.2026 Opting-out Cham
ECOTHERM AG für Anlagen der Wärme- und Umwelttechnik CHE-100.386.208 Illnau-Effretikon 13.02.2026 Discontinued Cham
zetcom group AG CHE-115.071.038 Bern 10.02.2026 Auditor switch Cham
zetcom Informatikdienstleistungs AG CHE-104.287.456 Bern 10.02.2026 Auditor switch Cham
Culture Software Group AG CHE-388.244.330 Bern 09.02.2026 Auditor switch Cham