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Fact Sheet OBT AG

Core Company Information
Company Name OBT AG
UID CHE-109.029.855
Alternative / previous Names OBT SA, OBT Ltd
OBT Treuhand AG
Domicile St. Gallen
Canton SG
Legal Form Limited corporation
Inscription Date 19.12.1972
Website https://www.obt.ch
Phone +41 55 222 89 24
Offered services

Audit services

  • limited statutory examination (art. 727a CO)
  • ordinary statutory audit (art. 727 CO)
  • audit of public interest entities (e.g., listed companies)
  • 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
  • legal advice
  • real estate (fiduciary, management)
  • due diligence
  • valuation services

Covered accounting standards

  • CO (Code of Obligations)
  • Swiss GAAP FER
  • IFRS (International Financial Reporting Standards)
  • HAM2 (Harmonized Accounting Model 2)

Covered languages

  • German
  • French
  • English
  • Italian
FAOA Information
FAOA ID 500149
RAB Permission state-regulated audit firm
FAOA License active (since 11.10.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (13) OBT AG (CHE-373.077.879) in Andelfingen (ZH)  
OBT AG (CHE-210.232.211) in Basel (BS)
OBT AG (CHE-168.775.770) in Berikon (AG)
OBT AG (CHE-334.580.117) in Brugg (AG)
OBT AG (CHE-327.526.012) in Chur (GR)
OBT AG (CHE-323.201.462) in Köniz (BE)
OBT AG (CHE-307.177.931) in Lachen (SZ)
OBT AG (CHE-485.195.747) in Neuhausen am Rheinfall (SH)
OBT AG, Zweigniederlassung Rapperswil SG (CHE-193.282.619) in Rapperswil-Jona (SG)
OBT AG (CHE-248.888.710) in Schwyz (SZ)
OBT AG, Filiale St. Gallen (CHE-406.591.524) in St. Gallen (SG)
OBT AG (CHE-334.233.957) in Weinfelden (TG)
OBT AG (CHE-384.364.751) in Zürich (ZH)
OBT AG (CHE-399.743.258) in Appenzell (AI)
OBT AG (CHE-146.882.156) in Au (SG) (SG)
OBT AG (CHE-215.974.544) in Bern (BE)
OBT AG, Zweigniederlassung Buchs SG (CHE-455.360.450) in Buchs (SG) (SG)
OBT AG (CHE-377.425.583) in Frauenfeld (TG)
OBT AG, Zweigniederlassung Gossau SG (CHE-289.898.315) in Gossau (SG) (SG)
OBT AG (CHE-358.596.480) in Wädenswil (ZH)
OBT AG (CHE-457.478.430) in Winterthur (ZH)
OBT AG (CHE-269.654.359) in Zug (ZG)
Membership in Associations EXPERTsuisse
Number of auditors with permission 46  (28.65 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.8 years (max.: 33.2 years)

Total number of statutory audit engagements: 1'318 (Ranked #5 in Switzerland)

Change in number of audit engagements: +63 (since 31.12.2024), +56 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 2 (thereof 0 in the SMI, 0 in the SMI Expanded and 0 in the SPI)

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

  AG AI AR BE BL BS FR GE GL GR JU LU NE NW SG SH SO SZ TG TI UR VD VS ZG ZH ∑
Limited corporation 104 3 12 36 9 10 1 9 13 12 3 14 1 1 166 13 4 60 110 3 2 4 1 35 289 915
Limited liability company 5 1 1 5 1 1 1 1   1 1 3 1   16 3 1 5 7     3   2 29 88
Foundation 19   3 18   12     2     1     41 4   6 18         1 98 223
Cooperative 2               1 1         6       4       1   16 31
Association       4   2       1   1     11   1 1 2     1   1 33 58
Special legal forms                 1                   1           1 3
∑ 130 4 16 63 10 25 2 10 17 15 4 19 2 1 240 20 6 72 142 3 2 8 2 39 466 1'318

This audit firm is recorded as statutory auditor for 479 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 1'318 statutory audits are performed by the branch offices as indicated in the table below.

  AG AI AR BE BL BS FR GE GL GR JU LU NE NW SG SH SO SZ TG TI UR VD VS ZG ZH ∑
Basel           1                                       1
Berikon                                               1 3 4
Brugg 80     6 2 9   1       4   1 1 1 1 4 2         6 23 141
Chur                   3                               3
Köniz       29       1     3           1 1       1   1   37
Neuhausen am Rheinfall                               6     1           2 9
Rapperswil-Jona 1     1 1 2     12 2     2   40   1 30 1   2     2 40 137
Schwyz                       2           24               26
St. Gallen 2 2 7 4 1 1 1 1 2 3   4     112 1 1 1 16     3     24 186
St. Gallen 1 2 9 5 1 1     1 6   1     73 2   3 20 2       5 30 162
Weinfelden                             2 2     86       1   6 97
Zürich 46     18 5 11 1 7 2 1 1 8     12 8 2 9 16 1   4 1 24 338 515
∑ 130 4 16 63 10 25 2 10 17 15 4 19 2 1 240 20 6 72 142 3 2 8 2 39 466 1'318

Show client list for Basel, Berikon, Brugg, Chur, Köniz, Neuhausen am Rheinfall, Rapperswil-Jona, Schwyz, St. Gallen, St. Gallen, Weinfelden, Zürich.

Related audit firms

Network:

Total number of audit engagements across the network: 1'701

Direct personal relationship:

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
Silvestri AG CHE-107.285.560 Altstätten 04.11.2025 Auditor switch Brugg
Stüwe Switzerland AG CHE-270.057.791 Gams 04.11.2025 First auditor St. Gallen
Robert Fehr AG CHE-106.947.424 Andelfingen 03.11.2025 Auditor switch Weinfelden
Egon AG CHE-115.263.247 Zürich 16.10.2025 Auditor switch Zürich
Engadin Tourismus AG CHE-396.665.308 St. Moritz 15.10.2025 Auditor switch St. Gallen
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
RaiseNow AG CHE-339.167.405 Zürich 04.11.2025 Discontinued Zürich
SCQM Foundation (Swiss Clinical Quality Management in Rheumatic Diseases) CHE-110.528.645 Zürich 20.10.2025 Auditor switch Brugg
EBL Energiezentrum Rigi AG CHE-499.696.205 Küssnacht (SZ) 17.10.2025 Auditor switch Schwyz
Stiftung Wohnheim Sonnenrain Zihlschlacht CHE-105.337.708 Zihlschlacht-Sitterdorf 14.10.2025 Auditor switch Weinfelden
Complementa AG CHE-105.995.082 St. Gallen 08.10.2025 Auditor switch St. Gallen