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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 299  (11.04 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.7 years (max.: 35.4 years)

Total number of statutory audit engagements: 3'301 (Ranked #3 in Switzerland)

Change in number of audit engagements: -71 (since 31.12.2023), -189 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 47 (thereof 6 in the SMI, 8 in the SMI Expanded and 26 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 77 2 6 224 75 101 63 261 5 17 7 52 22 18 5 66 17 44 44 53 109 1 274 37 210 511 2'301
Limited liability company 15     11 8 19 3 34   2 1 9 8   1 7 14 6 6 1 12   37 2 66 51 313
Foundation 12 1   69 13 32 5 32 1 2 1 7 3 1   8   6 6 5 16 1 30 4 19 96 370
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   3       2                 1   7     11 35
Special legal forms       4   5 1 2 1 1                         4 1   7 26
127 4 8 343 104 160 82 338 8 30 14 87 35 20 7 114 32 69 60 73 155 4 366 62 301 698 3'301

This audit firm is recorded as statutory auditor for 3559 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 3'301 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   2 5             3 5 52
Basel 38 2 4 32 85 129 18 98 1 8 9 20 5 1 1 39 4 23 12 16 23 3 107 27 25 84 814
Bern 6     262 4 6 26   1 2 2 14 4 12   4 2 24 5 3 2 1 12 2 6 36 436
Lancy       4 1 4 8 182       2 9         4         47 2 8 15 286
Lausanne       14   2 26 34         12     1         9   180 26 6 4 314
Lugano               1   2   1 1 2             116       2 5 130
Luzern 3     2   2           14     4                   2   27
St. Gallen 6   4 1 2     3   5 1   1     48 2   1 15 1   4 1 4 12 111
Zug 3     1 1     1   1   7   2     5   2 2 1       73 10 109
Zürich 44 2   25 7 16 4 19 6 11 2 28 3 3 1 22 17 13 40 37 3   16 4 172 527 1'022
127 4 8 343 104 160 82 338 8 30 14 87 35 20 7 114 32 69 60 73 155 4 366 62 301 698 3'301

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: 3'307

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
Credit Suisse Investment Partners (Schweiz) AG CHE-113.939.878 Freienbach 23.05.2024 Auditor switch Basel
CS LP Holding AG CHE-102.125.794 Zug 23.05.2024 Auditor switch Basel
GfK Switzerland AG CHE-105.741.386 Root 22.05.2024 Auditor switch Luzern
HC FinCo SA CHE-187.610.678 Lausanne 22.05.2024 First auditor Lausanne
Merban Equity AG CHE-102.125.937 Zug 22.05.2024 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
Repower AG CHE-103.176.251 Brusio 23.05.2024 Auditor switch Zürich
BKW AEK Contracting AG CHE-375.316.517 Solothurn 17.05.2024 Auditor switch Bern
Kühne-Stiftung CHE-110.379.919 Feusisberg 16.05.2024 Auditor switch Zürich
CSL Behring Biotherapies GmbH CHE-395.081.501 Bern 14.05.2024 Auditor switch Bern
Swiss Car ABS 2021-1 AG CHE-286.187.689 Cham 14.05.2024 Opting-out Zürich