Now with auditor networks!

Get detailed statistics about any audit firm in Switzerland. Just type the auditor name in the field below and off you go!

Fact Sheet Deloitte AG

Core Company Information
Company Name Deloitte AG
UID CHE-101.377.666
Alternative / previous Names Deloitte SA, Deloitte Ltd
DELOITTE & TOUCHE AG, DELOITTE & TOUCHE SA, DELOITTE & TOUCHE LTD
Deloitte & Touche Experta AG, Deloitte & Touche Experta SA
Experta Revision AG, Experta Revision SA, Experta Revisione SA, Experta Audit Ltd
Domicile Zürich
Canton ZH
Legal Form Limited corporation
Inscription Date 19.01.1984
Website http://www.deloitte.ch
FAOA Information
FAOA ID 500420
RAB Permission state-regulated audit firm
FAOA License active (since 29.11.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (5) Deloitte AG (CHE-156.952.551) in Basel (BS)  
Deloitte AG (CHE-437.674.867) in Bern (BE)
Deloitte SA (CHE-411.931.790) in Genève (GE)
Deloitte SA (CHE-281.829.115) in Lausanne (VD)
Deloitte AG (CHE-193.020.143) in Lugano (TI)
DELOITTE & TOUCHE AG (CHE-394.391.123) in Bern (BE)
DELOITTE & TOUCHE AG (CHE-348.251.660) in Zug (ZG)
Membership in Associations EXPERTsuisse
Number of auditors with permission 123  (9.20 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 7.7 years (max.: 33.5 years)

Total number of statutory audit clients: 1'132 (Ranked #6 in Switzerland)

Change in number of audit engagements: -4 (since 31.12.2025), +21 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 16 (thereof 1 in the SMI, 1 in the SMI Expanded and 9 in the SPI)

Details regarding the distribution of the audit engagements across legal forms and cantons are depicted in the table below.

  AG BE BL BS FR GE GL GR LU NE NW SG SH SO SZ TG TI UR VD VS ZG ZH ∑
Limited corporation 21 35 22 53 31 112 3 4 17 9 2 12 6 14 18 15 54 8 77 9 138 200 860
Limited liability company 11 4 4 6 1 17   1 8 9   3 20 3 2 1 2   20 1 36 43 192
Foundation   1   5   29     4 1 1 1 2   1 1 3   4 1 3 9 66
Cooperative       1                                     1
Association       1   2                         3       6
Special legal forms   1       4                           1   1 7
∑ 32 41 26 66 32 164 3 5 29 19 3 16 28 17 21 17 59 8 104 12 177 253 1'132

This audit firm is recorded as statutory auditor for 1238 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 1'132 statutory audits are performed by the branch offices as indicated in the table below.

  AG BE BL BS FR GE GL GR LU NE NW SG SH SO SZ TG TI UR VD VS ZG ZH ∑
Basel 2 3 8 19                 1   3           10 3 49
Genève       3 4 148     2 4   4     1       39 4 9 9 227
Lausanne   1   2 6 2       8                 51 2 2 3 77
Lugano 1             1 1         1     56   1   4 2 67
Zürich 29 37 18 42 22 14 3 4 26 7 3 12 27 16 17 17 3 8 13 6 152 236 712
∑ 32 41 26 66 32 164 3 5 29 19 3 16 28 17 21 17 59 8 104 12 177 253 1'132

Show client list for Basel, Genève, Lausanne, Lugano, Zürich.

Latest audit engagements
These are this auditor's latest audit engagements.
 
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
Epimon Trading SA CHE-362.426.355 Genève 14.01.2026 First auditor Genève
CES Global Operations AG CHE-226.173.933 Meggen 09.01.2026 First auditor Zürich
CENTIEL SA CHE-163.168.166 Lugano 08.01.2026 Auditor switch Lugano
RecyPET AG CHE-104.869.492 Frauenfeld 08.01.2026 Auditor switch Zürich
Thur Milch Ring AG CHE-105.447.225 Hochdorf 23.12.2025 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
Vanomet Holding AG CHE-103.355.598 Zug 16.01.2026 Auditor switch Zürich
AfriMet Resources AG CHE-113.780.721 Zug 14.01.2026 Auditor switch Zürich
Vanomet AG CHE-106.765.739 Zug 14.01.2026 Auditor switch Zürich
GIWM - Institut Genevois pour la Gestion de Patrimoine CHE-158.002.005 Genève 12.01.2026 Auditor switch Genève
Audatex (Schweiz) GmbH CHE-102.235.709 Zürich 09.01.2026 Auditor switch Zürich