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Fact Sheet FORVIS MAZARS SA

Core Company Information
Company Name FORVIS MAZARS SA
UID CHE-107.861.311
Alternative / previous Names MAZARS AG, MAZARS LTD
Mazars & Guérard SA (until 26.02.2003)
MAZARS (Suisse) SA, MAZARS (Schweiz) AG, MAZARS (Switzerland) LTD (until 19.12.2005)
MAZARS CORESA (until 26.01.2010)
MAZARS CORESA SA, MAZARS CORESA AG, MAZARS CORESA LTD (until 19.04.2013)
MAZARS SA, MAZARS AG, MAZARS LTD (until 13.06.2024)
Domicile Vernier
Canton GE
Legal Form Limited corporation
Inscription Date 06.03.1975
Website https://www.mazars.ch
Phone +41 4 4 3 84 84 44
Takeovers: Coresa, Contrôle, Organisation, Révision SA (CHE-106.031.703), per 19.12.2005
REVITAG SA (CHE-101.360.312), per 09.03.2017
FAOA Information
FAOA ID 500241
RAB Permission state-regulated audit firm
FAOA License active (since 27.12.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (9) FORVIS MAZARS SA (CHE-183.769.593) in Basel (BS)  
FORVIS MAZARS SA (CHE-328.124.886) in Bern (BE)
FORVIS MAZARS SA (CHE-209.061.262) in Delémont (JU)
FORVIS MAZARS SA (CHE-388.216.322) in Fribourg (FR)
FORVIS MAZARS SA (CHE-281.111.934) in Lausanne (VD)
FORVIS MAZARS SA (CHE-363.308.793) in Lugano (TI)
FORVIS MAZARS SA (CHE-463.790.686) in Neuchâtel (NE)
FORVIS MAZARS SA (CHE-317.742.057) in Sion (VS)
FORVIS MAZARS SA (CHE-248.814.976) in Zürich (ZH)
MAZARS CORESA (CHE-271.109.628) in Lausanne (VD)
Membership in Associations EXPERTsuisse
IIAS
Number of auditors with permission 76  (11.07 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 5 years (max.: 25.2 years)

Total number of statutory audit clients: 841 (Ranked #10 in Switzerland)

Change in number of audit engagements: +44 (since 31.12.2025), +91 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 11 (thereof 0 in the SMI, 0 in the SMI Expanded and 7 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 VD VS ZG ZH ∑
Limited corporation 19     43 14 3 18 126 1 1 30 11 37 1 2 11 1 7 13 7 14 122 24 51 79 635
Limited liability company 3     3 1   2 40     3 1                   21 2 5 7 88
Foundation     1 2     6 34       1 4     2     1   1 14 4   2 72
Cooperative 2 1   2     1           1                         7
Association       1     1 10     1 1 1                 15   1 1 32
Special legal forms               3                           4       7
∑ 24 1 1 51 15 3 28 213 1 1 34 14 43 1 2 13 1 7 14 7 15 176 30 57 89 841

This audit firm is recorded as statutory auditor for 242 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 841 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 VD VS ZG ZH ∑
Basel 2       4                                         6
Bern       17               2       1   1           1 1 23
Delémont       4             12                             16
Fribourg       2     15 1     1                     3       22
Lausanne       4     6 9     7   11         1 1 1   131 8 3 1 183
Neuchâtel 3     2     1       10   22                 2     3 43
Sion                                             13     13
Vernier       6     4 200 1   4   10 1 1 1   1   1 10 28 9 9 12 298
Zürich 19 1 1 16 11 3 2 3   1   12     1 11 1 4 13 5 5 12   44 72 237
∑ 24 1 1 51 15 3 28 213 1 1 34 14 43 1 2 13 1 7 14 7 15 176 30 57 89 841

Show client list for Basel, Bern, Delémont, Fribourg, Lausanne, Neuchâtel, Sion, Vernier, Zürich.

Related audit firms

Direct personal relationship:

Latest audit engagements
These are this auditor's latest audit engagements.
 
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
Centre sportif de Malley SA CHE-108.008.282 Prilly 11.09.2026 Auditor switch Lausanne
Teleinformatik Services AG CHE-105.270.777 Zürich 10.09.2026 Auditor switch Neuchâtel
GOTRI SA CHE-292.254.207 Develier 07.09.2026 Auditor switch Neuchâtel
B. Braun Medical Care AG CHE-137.827.891 Urdorf 02.09.2026 Auditor switch Zürich
Gobat Génie Civil SA CHE-107.213.394 Courgenay 02.09.2026 Auditor switch Neuchâtel
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
OrientSwiss SA CHE-383.545.149 Lausanne 01.09.2026 Discontinued Lausanne
ZoodPay SA CHE-343.541.719 Lausanne 01.09.2026 Discontinued Lausanne
SCOR Investment Partners Switzerland AG CHE-424.766.282 Zürich 17.08.2026 Auditor switch Zürich
Sonepar Suisse AG CHE-106.829.003 St. Gallen 12.08.2026 Auditor switch Vernier
MERAXIS Italy SA CHE-100.170.163 Chiasso 28.07.2026 Opting-out Zürich