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Fact Sheet Copartner Revision AG

Core Company Information
Company Name Copartner Revision AG
UID CHE-107.423.224
Alternative / previous Names -
Domicile Basel
Canton BS
Legal Form Limited corporation
Inscription Date 16.11.1992
Website http://www.copartner.ch
Phone +41 61 270 21 21
Offered services

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
  • other special examinations based on legal requirements (such as in the context of relocations or public bids)
  • reviews (according to ISRE 2400 or ISRE 2410)
  • audit of the equal pay analysis (art. 13d GEA)
  • audit of non-financial reports (such as sustainability reports according to art. 964a CO)

Non-audit services

  • accounting and fiduciary services
  • consulting
  • tax consulting
  • real estate (fiduciary, management)
  • due diligence
  • valuation services

Covered accounting standards

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

Covered languages

  • German
  • English
FAOA Information
FAOA ID 501793
RAB Permission licensed audit expert
FAOA License active (since 28.12.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations EXPERTsuisse
SwissAccounting
Number of auditors with permission 15  (36.53 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 7.2 years (max.: 31.7 years)

Total number of statutory audit clients: 548 (Ranked #12 in Switzerland)

Change in number of audit engagements: +8 (since 31.12.2025), +39 (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 AR BE BL BS FR GE GR LU NE NW OW SG SO SZ TG TI ZG ZH
Limited corporation 17   4 70 118   2   17   7 1 7 7 1 1 1 25 27 305
Limited liability company 5   3 13 17       1       1 1         4 45
Foundation 9 1 2 16 97 1   1 2 1 1     4       14 10 159
Cooperative       5 6       1         1         1 14
Association       1 18       1   1     1         3 25
31 1 9 105 256 1 2 1 22 1 9 1 8 14 1 1 1 39 45 548

This audit firm is recorded as statutory auditor for 133 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
mareas AG CHE-489.702.181 Binningen 12.05.2026 First auditor Basel
Thomas Kamber AG CHE-141.868.864 Sissach 07.05.2026 First auditor Basel
Förderstiftung für Soziale Arbeit Zürich CHE-106.828.771 Zürich 01.04.2026 Auditor switch Basel
Metropol Kurier GmbH CHE-110.567.639 Basel 25.03.2026 Auditor switch Basel
sun2wheel AG CHE-153.335.480 Kriens 06.03.2026 Auditor switch Basel
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
DePoly SA CHE-194.663.705 Sion 23.03.2026 Auditor switch Basel
IBEX Investment I AG in Liquidation CHE-492.397.782 Basel 26.01.2026 Discontinued Basel
Portofino Technologies AG CHE-269.235.583 Zug 21.01.2026 Auditor switch Basel
Stiftung St. Anna zu Röschenz CHE-113.190.471 Röschenz 16.01.2026 Auditor switch Basel
Event-Treff Adelboden GmbH CHE-113.988.842 Adelboden 12.01.2026 Opting-out Basel