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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)
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 285  (12.26 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 9.8 years (max.: 34.1 years)

Total number of statutory audit engagements: 3'494 (Ranked #3 in Switzerland)

Change in number of audit engagements: -26 (since 31.12.2022), -81 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 52 (thereof 5 in the SMI, 9 in the SMI Expanded and 29 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 80 5 6 226 76 108 76 273 5 17 8 68 21 18 8 78 17 50 50 57 122 2 295 44 239 509 2'458
Limited liability company 14     12 7 17 3 37   1 1 10 8   2 7 17 6 7 2 12   36 2 59 51 311
Foundation 17 1   72 12 32 5 35 1 2 1 8 3 1   8   6 10 6 20 1 36 4 19 97 397
Cooperative 24 1 2 26 8 2 10 6 1 8 5 17 2 1 1 34 1 13 4 14 17 2 15 18 7 22 261
Association       10   1   4       2                 1   9     10 37
Special legal forms 1     4   6 1 4 1 1       1                 4     7 30
∑ 136 7 8 350 103 166 95 359 8 29 15 105 34 21 11 127 35 75 71 79 172 5 395 68 324 696 3'494

This auditor is recorded as statutory auditor for 3461 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 3'494 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 4 53
Basel 41 2 4 30 85 135 19 97 1 8 9 25 5 2 1 41 5 24 14 16 23 3 110 28 26 71 825
Bern 7     270 5 6 26   1 2 2 15 3 13 1 9 2 28 5 4 2 1 12 2 7 38 461
Lancy       3   4 10 195       2 9       1 3         51 3 8 15 304
Lausanne       17   1 33 40     1   12     1         9   200 28 6 5 353
Lugano                       1 1               133   1   2 4 142
Luzern 3     2   2           15     4                   2   28
St. Gallen 6 2 4 1 2 1   3   6 1   1     51 2   1 18 1   4 2 1 13 120
Zug 1     1 1     1   1   7   2     5   2 2 1       95 9 128
Zürich 51 3   24 6 16 7 23 6 11 2 39 3 4 4 25 16 15 49 39 3 1 17 5 174 537 1'080
∑ 136 7 8 350 103 166 95 359 8 29 15 105 34 21 11 127 35 75 71 79 172 5 395 68 324 696 3'494

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: 3'500

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
Engimmune Therapeutics AG CHE-218.178.555 Allschwil 30.01.2023 First auditor Basel
OS IT Security Switzerland AG CHE-403.134.768 Zürich 30.01.2023 First auditor Basel
Parcandi AG CHE-283.638.804 Basel 30.01.2023 First auditor Basel
MATEX LAB SWITZERLAND SA CHE-347.139.084 Plan-les-Ouates 25.01.2023 First auditor Lancy
KNGK - GLOBAL SA CHE-102.081.582 Genève 23.01.2023 Auditor switch Lancy
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
Roland Benz GmbH CHE-101.867.930 Gipf-Oberfrick 31.01.2023 Opting-out St. Gallen
Au Canard Pékinois S.A. CHE-108.463.568 Lausanne 30.01.2023 Discontinued Lausanne
Fondation Campus Biotech Geneva CHE-231.203.729 Genève 30.01.2023 Auditor switch Lausanne
Zürcher Lagerhaus AG CHE-101.337.141 Zürich 30.01.2023 Auditor switch Zürich
Cimeio Therapeutics AG CHE-465.367.689 Basel 27.01.2023 Auditor switch Basel