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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 278  (11.48 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.9 years (max.: 35.9 years)

Total number of statutory audit engagements: 3'191 (Ranked #3 in Switzerland)

Change in number of audit engagements: -181 (since 31.12.2023), -211 (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 76 2 8 211 69 100 58 259 5 14 6 48 22 18 5 61 17 41 29 51 108 1 259 34 200 496 2'198
Limited liability company 14     10 8 20 5 34   2 1 9 9   1 7 16 5 6 1 11   38 2 64 55 318
Foundation 11 1   66 13 31 4 31 1 2 1 8 3 1   8   6 6 4 16 1 27 4 19 94 358
Cooperative 23 1 2 26 8 2 10 5 1 8 5 17 2 1 1 33 1 13 4 14 17 2 15 18 6 21 256
Association       10   1   4       2                 1   6     12 36
Special legal forms       4   5 1 3 1 1                         3 1   6 25
124 4 10 327 98 159 78 336 8 27 13 84 36 20 7 109 34 65 45 70 153 4 348 59 289 684 3'191

This audit firm is recorded as statutory auditor for 3608 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 3'191 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 26     2 4 1       1   1     1   3 5             3 5 52
Basel 36 2 4 35 82 128 17 97 1 8 9 20 5 1 1 39 4 22 11 16 23 3 106 27 25 90 812
Bern 6     239   6 20   1   1 9 5 12   3   21 1 2 2 1 12   7 28 376
Lancy       5 1 4 9 183       2 9         4         44 2 6 14 283
Lausanne       14   2 27 34         12               8   164 25 8 4 298
Lugano               1   3   1 1 2             116       2 5 131
Luzern 3     2   2           17     4                   2   30
St. Gallen 6   4 1 2     3   6 1   1     45 2   1 12 1   5 1 4 12 107
Zug 3     1 1     1   1   7   2     5   2 1 1       65 10 100
Zürich 44 2 2 28 8 16 5 17 6 8 2 27 3 3 1 22 20 13 30 39 2   17 4 167 516 1'002
124 4 10 327 98 159 78 336 8 27 13 84 36 20 7 109 34 65 45 70 153 4 348 59 289 684 3'191

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: 3'197

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
Fonds de prévoyance en faveur du personnel de la Société Coopérative d'Habitation Lausanne CHE-109.784.615 Lausanne 08.11.2024 Auditor switch Lausanne
MDZ Uster AG, Medizinisches Diagnose-Zentrum Zürcher Oberland CHE-109.595.209 Uster 06.11.2024 Auditor switch Zürich
IMRAD SA CHE-380.823.398 Lausanne 30.10.2024 Auditor switch Zürich
STRADE AG CHE-241.611.254 Kloten 30.10.2024 Auditor switch Zürich
Burckhardt Compression AG CHE-101.390.201 Winterthur 29.10.2024 Auditor switch 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
Suissepool Services AG CHE-115.688.701 Bern 07.11.2024 Opting-out Bern
BKW Renewables Partners AG CHE-316.960.717 Bern 06.11.2024 Auditor switch Bern
Armator Shipping SA CHE-187.014.766 Paradiso 01.11.2024 Auditor switch Lugano
Amulia AG CHE-184.719.600 Zug 29.10.2024 Opting-out Zürich
Briosa AG CHE-116.087.131 Zug 29.10.2024 Opting-out Zürich