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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 296  (11.18 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.7 years (max.: 35.3 years)

Total number of statutory audit engagements: 3'308 (Ranked #3 in Switzerland)

Change in number of audit engagements: -64 (since 31.12.2023), -192 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 49 (thereof 6 in the SMI, 9 in the SMI Expanded and 27 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 78 2 6 225 74 100 63 262 5 18 7 51 22 18 5 66 18 45 43 53 111 1 274 37 209 511 2'304
Limited liability company 15     12 8 19 3 35   2 1 9 8   1 7 14 6 6 1 12   37 2 66 51 315
Foundation 12 1   69 13 32 5 33 1 2 1 7 3 1   8   6 8 5 16 1 30 4 19 95 372
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       4   5 1 2 1 1                         4     7 25
128 4 8 345 103 159 82 342 8 31 14 86 35 20 7 114 33 70 61 73 157 4 366 61 300 697 3'308

This audit firm is recorded as statutory auditor for 3551 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 3'308 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   3 5             3 5 53
Basel 39 2 4 31 84 129 18 98 1 8 9 20 5 1 1 39 4 23 11 16 23 3 107 27 24 78 805
Bern 6     265 4 6 26   1 2 2 14 4 12   4 2 25 5 3 2 1 12 2 6 37 441
Lancy       4 1 4 8 187       2 9         4         48 2 8 15 292
Lausanne       14   2 26 33         12     1         9   179 25 6 4 311
Lugano               1   2   1 1 2             118       2 5 132
Luzern 3     2   2           13     4                   2   26
St. Gallen 6   4 1 2     3   5 1   1     48 2   1 15 1   4 1 3 12 110
Zug 3     1 1     1   1   7   2     5   2 2 1       74 10 110
Zürich 44 2   25 7 15 4 19 6 12 2 28 3 3 1 22 17 13 42 37 3   16 4 172 531 1'028
128 4 8 345 103 159 82 342 8 31 14 86 35 20 7 114 33 70 61 73 157 4 366 61 300 697 3'308

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: 3'314

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
Vassalli Service AG CHE-105.837.916 Opfikon 17.04.2024 Auditor switch Zürich
zahnarztzentrum.ch AG CHE-113.709.953 St. Gallen 15.04.2024 Auditor switch Zürich
Brunel Switzerland AG CHE-161.611.699 Zürich 09.04.2024 Auditor switch St. Gallen
Arklyz Group AG CHE-463.846.921 Stansstad 08.04.2024 Auditor switch Lugano
Arklyz Holding AG CHE-170.463.653 Stansstad 08.04.2024 Auditor switch Lugano
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
Fiat Chrysler Rimaco SA CHE-107.874.667 Chiasso 15.04.2024 Auditor switch Lugano
Académie Internationale des Sciences et Techniques du Sport (AISTS) CHE-109.572.125 Ecublens (VD) 12.04.2024 Auditor switch Lausanne
Siemens Energy AG CHE-345.528.351 Zürich 08.04.2024 Auditor switch Zürich
Garden Park Zug AG CHE-101.466.933 Zug 04.04.2024 Auditor switch Zug
Kernkraftwerk-Beteiligungsgesellschaft AG (KBG) CHE-101.435.111 Bern 04.04.2024 Auditor switch Lausanne