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Fact Sheet Ernst & Young AG

Core Company Information
Company Name Ernst & Young AG
UID CHE-105.932.265
Alternative / previous Names Ernst & Young SA, Ernst & Young Ltd
ATAG Ernst & Young AG, ATAG Ernst & Young SA, ATAG Ernst & Young Ltd
Domicile Basel
Canton BS
Legal Form Limited corporation
Firm Inscription Date 28.09.1998
Website https://www.ey.com/ch
Takeovers: Neofidaria AG (ADM-169.740.521), per 09.08.2001
Hangartner Treuhand AG (CHE-100.067.795), per 19.11.2002
Verifica SA (CHE-100.818.159), per 11.05.2005
ATAG Allgemeine Treuhand AG (CHE-100.818.892), per 20.12.2019
GBR Ernst & Young AG (CHE-100.918.105), per 05.03.2002
Ernst & Young AG (CHE-101.392.967), per 11.11.2003
Treuhand- und Revisionsgesellschaft T + R Grischa AG (CHE-101.715.639), per 19.06.2001
Fiduciaire Jacques Ceriani SA (CHE-101.822.086), per 08.04.2005
Fiduciaire de gestion et d'informatique S.A. (CHE-102.664.306), per 31.05.2005
Bösch & Edthofer AG (CHE-103.349.066), per 17.08.2023
FAOA Information
FAOA ID 500646
RAB Permission state-regulated audit firm
FAOA License active (since 28.11.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (9) Ernst & Young AG (CHE-461.581.835) in Aarau (AG)   [+]
Ernst & Young AG (CHE-311.498.829) in Baden (AG)
Ernst & Young AG (CHE-441.858.784) in Bern (BE)
Ernst & Young AG (CHE-354.720.232) in Biel/Bienne (BE)
ATAG Ernst & Young AG (CHE-132.732.622) in Buchs (SG) (SG)
Ernst & Young AG (CHE-421.676.725) in Chur (GR)
Ernst & Young AG (CHE-357.440.711) in Granges-Paccot (FR)
Ernst & Young AG (CHE-367.926.091) in Kreuzlingen (TG)
Ernst & Young SA (CHE-186.791.979) in Lancy (GE)
Ernst & Young SA (CHE-294.400.879) in Lausanne (VD)
Ernst & Young AG (CHE-475.755.395) in Lugano (TI)
Ernst & Young AG (CHE-259.230.495) in Luzern (LU)
Ernst & Young SA (CHE-185.564.694) in Neuchâtel (NE)
Ernst & Young SA (CHE-264.470.869) in Sion (VS)
Ernst & Young AG (CHE-327.393.030) in St. Gallen (SG)
Ernst & Young AG (CHE-152.377.547) in Zug (ZG)
Ernst & Young AG (CHE-491.907.686) in Zürich (ZH)
Membership in Associations EXPERTsuisse
Number of auditors with permission 274  (12.36 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.4 years (max.: 35 years)

Total number of statutory audit engagements: 3'388 (Ranked #3 in Switzerland)

Change in number of audit engagements: -132 (since 31.12.2022), -156 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 51 (thereof 6 in the SMI, 9 in the SMI Expanded and 28 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 OW SG SH SO SZ TG TI UR VD VS ZG ZH ∑
Limited corporation 79 4 7 227 73 107 65 269 5 18 8 56 22 16 6 66 19 45 45 52 109 1 280 38 237 518 2'372
Limited liability company 14     12 7 19 3 34   1 1 8 8   1 7 14 5 7 1 12   37 1 67 54 313
Foundation 14 1   72 12 34 5 35 1 2 1 8 3 1   8   6 9 6 17 1 32 4 19 94 385
Cooperative 23 1 2 25 8 2 10 6 1 8 5 17 2 1 1 33 1 13 4 14 17 2 14 18 6 22 256
Association       10   1   4       2                 1   7     11 36
Special legal forms 1     4   5 1 2 1 1                         4     7 26
∑ 131 6 9 350 100 168 84 350 8 30 15 91 35 18 8 114 34 69 65 73 156 4 374 61 329 706 3'388

This audit firm is recorded as statutory auditor for 3529 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 3'388 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 OW SG SH SO SZ TG TI UR VD VS ZG ZH ∑
Aarau 27     2 4 1       1   1     1   4 5             3 6 55
Basel 39 2 4 30 81 138 18 98 1 8 9 21 5 1 1 39 4 23 12 16 23 3 109 29 24 79 817
Bern 7     270 4 6 26   1 2 2 14 4 12   4 2 26 5 3 2 1 13 2 6 37 449
Lancy       4 1 4 9 192       2 9         2         50 2 8 15 298
Lausanne       15   2 27 35     1   12     1         9   181 23 7 4 317
Lugano                   1   1 1               117   1   3 5 129
Luzern 3     2   2           14     4                   2   27
St. Gallen 6 2 5 1 2     3   6 1   1     50 2   1 16 1   4 1 3 12 117
Zug 1     1 1     1   1   6   2     5   2 2 1       97 11 131
Zürich 48 2   25 7 15 4 21 6 11 2 32 3 3 2 20 17 13 45 36 3   16 4 176 537 1'048
∑ 131 6 9 350 100 168 84 350 8 30 15 91 35 18 8 114 34 69 65 73 156 4 374 61 329 706 3'388

Show client list for Aarau, Basel, Bern, Lancy, Lausanne, Lugano, Luzern, St. Gallen, Zug, Zürich.

Related audit firms

Network:

Total number of audit engagements across the network: 3'394

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
prosperity solutions (Switzerland) AG CHE-441.471.126 Zürich 08.12.2023 First auditor Basel
AMCI Carbon GmbH CHE-114.661.987 Zug 07.12.2023 Auditor switch Zug
Born Consulting AG CHE-115.188.798 Bern 07.12.2023 Auditor switch Bern
Vidara Switzerland AG CHE-103.535.290 Schlieren 07.12.2023 Auditor switch Zürich
Holcim Center of Excellence AG CHE-364.611.892 Zug 30.11.2023 First auditor 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
Forces Motrices Hongrin-Léman S.A. (FMHL) CHE-101.440.939 Château-d'Oex 01.12.2023 Auditor switch Lausanne
Solis of Switzerland AG CHE-103.298.227 Opfikon 01.12.2023 Auditor switch Zürich
Vifor Fresenius Medical Care Renal Pharma Ltd. CHE-116.256.592 St. Gallen 30.11.2023 Auditor switch Bern
Grande Dixence SA CHE-105.968.168 Sion 24.11.2023 Auditor switch Lausanne
Polygon Holding Schweiz AG CHE-358.912.902 Liestal 21.11.2023 Auditor switch Basel