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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
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 287  (11.14 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.9 years (max.: 35.7 years)

Total number of statutory audit engagements: 3'197 (Ranked #3 in Switzerland)

Change in number of audit engagements: -175 (since 31.12.2023), -232 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 46 (thereof 5 in the SMI, 7 in the SMI Expanded and 24 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 74 2 6 210 71 98 58 263 5 14 6 48 22 18 5 61 16 42 31 51 110 1 259 34 204 492 2'201
Limited liability company 14     10 9 20 4 35   2 1 9 8   1 7 15 5 6 1 11   36 2 68 53 317
Foundation 11 1   69 13 32 4 32 1 2 1 8 3 1   8   6 6 4 16 1 26 4 19 93 361
Cooperative 23 1 2 26 8 2 10 5 1 8 5 17 2 1 1 33 1 13 4 14 17 2 14 18 6 21 255
Association       10   1   4       2                 1   7     12 37
Special legal forms       4   5 1 3 1 1                         3 1   7 26
∑ 122 4 8 329 101 158 77 342 8 27 13 84 35 20 7 109 32 66 47 70 155 4 345 59 297 678 3'197

This audit firm is recorded as statutory auditor for 3601 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 3'197 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 25     2 4 1       1   1     1   2 5             3 5 50
Basel 37 2 4 33 83 127 18 97 1 8 9 20 5 1 1 39 4 23 12 16 23 3 106 27 25 89 813
Bern 6     245 3 6 20   1   1 10 5 12   3   21 1 2 2 1 12   7 28 386
Lancy       5 1 4 9 187       2 9         4         45 2 8 15 291
Lausanne       14   2 26 35         11               8   163 25 7 4 295
Lugano               1   3   1 1 2             118       2 5 133
Luzern 3     2   2           17     4                   2   30
St. Gallen 6   4 1 2     3   6 1   1     46 2   1 12 1   4 1 4 12 107
Zug 3     1 1     1   1   7   2     5   2 1 1       67 10 102
Zürich 42 2   26 7 16 4 18 6 8 2 26 3 3 1 21 19 13 31 39 2   15 4 172 510 990
∑ 122 4 8 329 101 158 77 342 8 27 13 84 35 20 7 109 32 66 47 70 155 4 345 59 297 678 3'197

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: 3'203

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
MF Reinsurance SA CHE-230.664.884 Basel 05.09.2024 First auditor Basel
Walter Siegmann Liegenschaften AG CHE-103.183.541 Zürich 05.09.2024 Auditor switch Basel
MPS Schaffhausen International GmbH CHE-131.291.986 Schaffhausen 03.09.2024 First auditor Zürich
Park HZ OpCo GmbH CHE-376.529.926 Zürich 03.09.2024 First auditor Zürich
Z43 NetZero Stiftung CHE-281.354.514 Zürich 03.09.2024 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
ASAG Air System AG CHE-108.426.053 Langenthal 05.09.2024 Auditor switch Bern
Guggisberg Kurz AG CHE-108.129.980 Ostermundigen 05.09.2024 Auditor switch Bern
Jaggi & Rieder AG CHE-107.222.246 Saanen 05.09.2024 Auditor switch Bern
Laboratoires La Prairie SA CHE-101.441.407 Zürich 05.09.2024 Auditor switch Zürich
Pensionskasse Nyffeler, Corti AG CHE-109.779.583 Kirchberg (BE) 05.09.2024 Auditor switch Bern