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Fact Sheet BDO AG

Core Company Information
Company Name BDO AG
UID CHE-105.952.747
Alternative / previous Names BDO SA, BDO Ltd
BDO Visura
Visura Treuhand-Gesellschaft, Visura Société Fiduciaire, Visura Società Fiduciaria, Visura Auditing and Fiduciary Company
Domicile Zürich
Canton ZH
Legal Form Limited corporation
Inscription Date 30.12.1932
Website https://www.bdo.ch
Takeovers: BDO Visura International AG (CHE-101.311.259), per 29.11.2016
accontax Markus Gfeller Treuhand AG (CHE-101.350.360), per 03.06.2025
Continental Revision und Treuhand AG in Liquidation (CHE-102.133.983), per 11.12.2020
LMK Revisions AG (CHE-102.604.764), per 12.07.2021
Fidirevisa SA (CHE-105.752.734), per 17.12.2015
BDO Sofirom SA (CHE-106.015.064), per 09.07.2013
Wyss + Partner Treuhand AG (CHE-106.214.899), per 29.06.2021
Dr. Suter Treuhand AG (CHE-106.926.617), per 06.05.2010
Jörg Moser AG (CHE-108.766.997), per 03.06.2022
FSA FIDUCIARIA SVIZZERA DEGLI ALBERGATORI DIVISIONE TICINO SA (CHE-110.366.118), per 09.07.2013
BDO Visura (Valais) SA (CHE-113.627.261), per 09.07.2013
FAOA Information
FAOA ID 500705
RAB Permission state-regulated audit firm
FAOA License active (since 13.12.2007)
Link to FAOA website View auditor profile at FAOA
Branch offices (42) BDO AG (CHE-345.012.024) in Aarau (AG)   [+]
BDO AG (CHE-265.966.133) in Affoltern am Albis (ZH)
BDO AG (CHE-426.842.563) in Altdorf (UR) (UR)
BDO AG (CHE-367.201.384) in Arosa (GR)
BDO AG (CHE-229.255.214) in Baden (AG)
BDO AG (CHE-370.772.724) in Basel (BS)
BDO AG (CHE-430.259.378) in Bern (BE)
BDO AG (CHE-305.494.906) in Biel/Bienne (BE)
BDO SA (CHE-224.514.963) in Bulle (FR)
BDO AG (CHE-414.946.954) in Burgdorf (BE)
BDO AG (CHE-444.757.547) in Chur (GR)
BDO SA (CHE-208.015.259) in Delémont (JU)
BDO Visura (CHE-313.641.055) in Delémont (JU)
BDO SA (CHE-383.819.803) in Delémont (JU)
BDO Visura (CHE-421.671.283) in Egerkingen (SO)
BDO SA (CHE-347.141.454) in Epalinges (VD)
BDO AG (CHE-487.865.056) in Frauenfeld (TG)
Visura Société Fiduciaire (CHE-999.000.112) in Fribourg (FR)
BDO AG (CHE-314.312.594) in Glarus (GL)
BDO AG (CHE-327.753.565) in Grenchen (SO)
BDO AG (CHE-325.977.510) in Herisau (AR)
BDO AG (CHE-367.593.836) in Kreuzlingen (TG)
BDO AG (CHE-373.972.722) in Lachen (SZ)
BDO AG (CHE-132.773.704) in Lamone (TI)
BDO AG (CHE-408.158.150) in Langenthal (BE)
BDO AG (CHE-320.101.456) in Laufen (BL)
BDO AG (CHE-147.528.510) in Liestal (BL)
BDO AG (CHE-384.263.558) in Luzern (LU)
BDO SA (CHE-213.009.885) in Monthey (VS)
BDO AG (CHE-218.606.663) in Muri (AG) (AG)
BDO SA (CHE-412.010.941) in Nyon (VD)
BDO Visura (CHE-325.058.313) in Nyon (VD)
BDO Visura (ADM-212.658.265) in Oensingen (SO)
BDO AG (CHE-303.222.254) in Olten (SO)
BDO Visura (ADM-278.574.216) in Olten (SO)
BDO SA (CHE-464.088.838) in Porrentruy (JU)
BDO SA (CHE-309.054.162) in Porrentruy (JU)
BDO AG (CHE-329.959.698) in Rüte (AI)
BDO AG (CHE-135.926.789) in Sarnen (OW)
BDO AG (CHE-161.247.777) in Schaffhausen (SH)
BDO AG (CHE-210.965.785) in Schwyz (SZ)
BDO SA (CHE-278.511.546) in Sion (VS)
BDO AG (CHE-389.731.986) in Solothurn (SO)
BDO AG (CHE-386.245.531) in St. Gallen (SG)
BDO AG (CHE-457.315.785) in Stans (NW)
BDO AG (CHE-384.985.628) in Steinhausen (ZG)
BDO AG (CHE-295.361.041) in Sursee (LU)
BDO AG (CHE-154.513.531) in Uster (ZH)
BDO SA (CHE-398.161.059) in Vernier (GE)
BDO SA (CHE-320.207.362) in Villars-sur-Glâne (FR)
BDO AG (CHE-345.180.503) in Wetzikon (ZH) (ZH)
BDO AG (CHE-363.697.773) in Wil (SG) (SG)
BDO AG (CHE-392.959.099) in Winterthur (ZH)
BDO AG (CHE-313.962.401) in Zofingen (AG)
BDO Visura (CHE-316.539.499) in Zürich (ZH)
Membership in Associations EXPERTsuisse
SVIR
Number of auditors with permission 328  (19.49 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 10.2 years (max.: 32.9 years)

Total number of statutory audit engagements: 6'392 (Ranked #1 in Switzerland)

Change in number of audit engagements: +88 (since 31.12.2024), +169 (over the last 12 months)

Number of audit clients listed on a Swiss stock exchange: 18 (thereof 0 in the SMI, 1 in the SMI Expanded and 13 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 523 5 9 492 146 112 128 194 21 57 33 306 41 52 79 123 21 284 115 73 126 50 252 114 258 796 4'410
Limited liability company 23     27 9 12 13 15 4 8 5 12 6 1 3 16 2 22 7 2 6 2 9 17 26 70 317
Foundation 118   11 130 33 77 13 31 7 16 12 81 1 14 19 39 4 85 14 13 28 11 55 21 35 264 1'132
Cooperative 24 1 1 36 9 5 9   1 6   23 1 1 1 3   12 4 6 4 3 6 2 3 83 244
Association 23     45 9 13 1 6   2   23     1 4   14 1   3   13 4 10 58 230
Special legal forms 2 1 1 6 1 2 5 5 2 1   4   1   5   5   2 5   6 1   4 59
∑ 713 7 22 736 207 221 169 251 35 90 50 449 49 69 103 190 27 422 141 96 172 66 341 159 332 1'275 6'392

This audit firm is recorded as statutory auditor for 2564 deleted entities. These are not included in the table above.

Display client list

Audit Engagements by Branch Office

The 6'392 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 448     11 12 12   1   4   18   1   2   28 4 4   1 1   16 63 626
Affoltern am Albis 6       1                                       3 22 32
Altdorf (UR) 1                 1   2             13     52     3   72
Baden 110     10 1 2       1   7     2     4 2       2 1 4 25 171
Basel 8     11 68 150     1 1 1 2   1 2     11     2 2 1   2 13 276
Bern 18     324 2 4 16 4 2 7 1 12 5 1   1 1 10 5 6 1 2 10 16 8 30 486
Biel/Bienne 3     70 2 5 1 1     1   3         6         5     10 107
Burgdorf 2     68     1         1           8             1 2 83
Chur                 1 43           1       3 1           49
Delémont       1             8   4                           13
Epalinges       1     9 18     6   18         1 1       201 14 2   271
Frauenfeld                               1       14         1 4 20
Glarus     1 1         19             9     1             10 41
Grenchen       30 1 2 1               1 1   76     1   1   3 6 123
Herisau   1 3                         1                   2 7
Lachen 12   2   3 2   1 3 4   2     1 14 1   53 2   1     4 26 131
Lamone               4   5   2                 156   1   1 4 173
Langenthal       75                           3                 78
Laufen         13                         14                 27
Liestal 6     2 83 22         2 5   1       7 1       3   1 5 138
Luzern 9     13 1         7   260   13 22 4   1 8   3 3   4 39 42 429
Monthey                                             3 8     11
Muri (AG) 2                                                   2
Nyon               3                             27       30
Olten 10     7 1   1       1 1           48             5   74
Porrentruy               1                                     1
Porrentruy       1             24                               25
Sarnen 1                     4   1 48                       54
Schaffhausen                                 1                 2 3
Sion             1 3                             4 107 2   117
Solothurn 6     55 1 1 2         3 3   3 1   197     1   1   3 14 291
St. Gallen 3 3 16 1 1       3 4           123 10 1 2 51     1   5 21 245
Stans 2     2               7 1 45 8 1           4     1 1 72
Steinhausen 3     11 1     1   2   12 1   1 3   1 2           127 22 187
Sursee 11     5     1   2     92   3 3 1       1     1   5 8 133
Vernier       1     7 202         7 1       1     3   52 2 5 7 288
Villars-sur-Glâne       4     127 2         6                   17 4 2 4 166
Wetzikon (ZH) 3 1   1         1     2     1 4 3   4 3     2   3 158 186
Zofingen 6                                 1                 7
Zürich 43 2   31 16 21 2 10 3 11 6 17 1 2 11 23 11 4 45 12 4 1 8 3 86 774 1'147
∑ 713 7 22 736 207 221 169 251 35 90 50 449 49 69 103 190 27 422 141 96 172 66 341 159 332 1'275 6'392

Show client list for Aarau, Affoltern am Albis, Altdorf (UR), Baden, Basel, Bern, Biel/Bienne, Burgdorf, Chur, Delémont, Epalinges, Frauenfeld, Glarus, Grenchen, Herisau, Lachen, Lamone, Langenthal, Laufen, Liestal, Luzern, Monthey, Muri (AG), Nyon, Olten, Porrentruy, Porrentruy, Sarnen, Schaffhausen, Sion, Solothurn, St. Gallen, Stans, Steinhausen, Sursee, Vernier, Villars-sur-Glâne, Wetzikon (ZH), Zofingen, Zürich.

Related audit firms

Network:

Total number of audit engagements across the network: 6'393

Direct personal relationship:

Same domicile: 

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
Arnold Gastro GmbH CHE-414.185.310 Unterschächen 20.06.2025 First auditor Altdorf (UR)
Fondazione per l'Istituto Oncologico di Ricerca (IOR) CHE-110.407.651 Bellinzona 20.06.2025 Auditor switch Lamone
My Swiss Keeper SA CHE-331.822.927 Nyon 20.06.2025 Auditor switch Nyon
ComatReleco AG CHE-102.235.425 Düdingen 19.06.2025 Auditor switch Bern
Geoterra Services AG CHE-361.099.779 Freienbach 19.06.2025 First auditor Lachen
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
Kellenberger Machines Holdings GmbH CHE-114.310.080 Goldach 20.06.2025 Auditor switch Zürich
Hipp Management AG CHE-101.085.985 Sachseln 19.06.2025 Opting-out Solothurn
Hauseigentümerverband Basel-Stadt CHE-101.192.463 Basel 18.06.2025 Auditor switch Basel
Erhard GmbH Malerei - Gipserei CHE-115.282.322 Lauperswil 13.06.2025 Auditor switch Burgdorf
Förderstiftung Technopark Aargau CHE-113.184.476 Brugg 13.06.2025 Auditor switch Aarau