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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  (10.95 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 4.9 years (max.: 25.1 years)

Total number of statutory audit clients: 832 (Ranked #10 in Switzerland)

Change in number of audit engagements: +35 (since 31.12.2025), +94 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 12 (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 17     42 14 3 18 124 1 1 26 9 37 1 2 12 1 7 12 7 15 123 24 51 79 626
Limited liability company 3     3 1   1 40     3 1                   22 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
∑ 22 1 1 50 15 3 27 211 1 1 30 12 43 1 2 14 1 7 13 7 16 178 30 57 89 832

This audit firm is recorded as statutory auditor for 241 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 832 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       16               2       1   1           1 1 22
Delémont       4             12                             16
Fribourg       2     14 1     1                     3       21
Lausanne       4     6 9     7   11         1 1 1   133 8 3 1 185
Neuchâtel 3     2     1       6   22                 2     2 38
Sion                                             13     13
Vernier       6     4 198 1   4   10 1 1 2   1   1 10 28 9 9 12 297
Zürich 17 1 1 16 11 3 2 3   1   10     1 11 1 4 12 5 6 12   44 73 234
∑ 22 1 1 50 15 3 27 211 1 1 30 12 43 1 2 14 1 7 13 7 16 178 30 57 89 832

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
JC International SA CHE-394.935.141 Lausanne 21.07.2026 First auditor Vernier
Transamine SA CHE-113.083.763 Genève 20.07.2026 Auditor switch Vernier
Q - Base Capital Group AG CHE-238.195.692 Zürich 17.07.2026 Auditor switch Zürich
La Courtine S.A. CHE-101.912.772 Saulcy 15.07.2026 Auditor switch Neuchâtel
Manotel Hospitality SA CHE-386.759.540 Genève 15.07.2026 First auditor Vernier
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
Goldner AG CHE-103.458.962 Kleinandelfingen 21.07.2026 Opting-out Zürich
Haute Capital Partners AG CHE-225.664.737 Biel/Bienne 20.07.2026 Discontinued Bern
SCOR Services Switzerland AG CHE-115.022.979 Zürich 13.07.2026 Auditor switch Zürich
SCOR Switzerland Asset Services AG CHE-317.008.313 Zürich 10.07.2026 Auditor switch Zürich
Diffulivre SA CHE-107.933.755 Saint-Sulpice (VD) 23.06.2026 Auditor switch Vernier