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Fact Sheet Solidis Revisions AG

Core Company Information

Company Name	Solidis Revisions AG
UID	CHE-102.352.278
Alternative / previous Names	Solidis Audit Ltd Adr. Sudan AG für Revision und Steuerberatung Sudan Partner AG (until 08.10.2014)
Domicile	Olten
Canton	SO
Legal Form	Limited corporation
Inscription Date	23.03.1976

FAOA Information

FAOA ID	501533
RAB Permission	licensed audit expert
FAOA License	active (since 29.11.2007)
Link to FAOA website	View auditor profile at FAOA
Branch offices (0)	-
Membership in Associations	EXPERTsuisse TREUHAND\|SUISSE veb.ch
Number of auditors with permission	5 (37.00 audit engagements per employee on average)

Auditor Statistics

Average engagement duration: 15.8 years (max.: 33.1 years)

Total number of statutory audit engagements: 185 (Ranked #62 in Switzerland)

Change in number of audit engagements: -6 (since 31.12.2024), -1 (over the last 12 months)

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

This audit firm is recorded as statutory auditor for 76 deleted entities. These are not included in the table above.

Related audit firms

Network:

BMU Treuhand AG (CHE-115.321.376), 113 audit engagements
Solidis Treuhand AG (CHE-107.909.432), 0 audit engagements
Rotmonten Treuhand AG (CHE-103.555.424), 16 audit engagements
Treuhand-Zentrum AG (CHE-106.834.702), 1 audit engagements
Thalmann Treuhand AG (CHE-108.028.770), 187 audit engagements
Tschanz Treuhand AG (CHE-109.601.382), 0 audit engagements
Merki Treuhand AG (CHE-113.529.374), 0 audit engagements
Rotmonten Wirtschaftsprüfung AG (CHE-205.494.662), 152 audit engagements

Total number of audit engagements across the network: 654

Direct personal relationship:

Further connections:

Hartbert Immobilien AG (CHE-102.122.548), 0 audit engagements
Confina Treuhand AG (CHE-100.153.093), 0 audit engagements
Tschanz-Treuhand (CHE-106.134.384), 0 audit engagements
R + H Treuhand AG Lyss (CHE-107.170.767), 0 audit engagements
mathys gmbh Treuhand und Unternehmensberatung (CHE-109.303.826), 0 audit engagements
M-Treuhand und Unternehmensberatung, Theo und Monika Mathys (CHE-107.519.367), 0 audit engagements
Confina Revisions AG (CHE-462.414.329), 12 audit engagements
witreva & Thalmann Treuhand AG (CHE-157.557.542), 12 audit engagements
ERM Solutions AG (CHE-110.209.944), 0 audit engagements

Latest audit engagements

These are this auditor's latest audit engagements.

Client Name	Client UID	Domicile	Start Date	Type of switch	Auditor Branch
A. Aubry AG	CHE-101.467.944	Grenchen	01.09.2025	Auditor switch	Olten
FRXSH Vertrieb AG	CHE-443.814.094	Dulliken	07.07.2025	First auditor	Olten
Braso AG	CHE-106.308.187	Schöftland	27.06.2025	Auditor switch	Olten
IMEDCO AG	CHE-108.075.479	Hägendorf	23.06.2025	Auditor switch	Olten
Vorsorgestiftung der Imedco AG	CHE-109.789.392	Hägendorf	23.06.2025	Auditor switch	Olten

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
Aare-Kies Holding AG	CHE-103.447.042	Gunzgen	04.11.2025	Auditor switch	Olten
Belagswerk Boningen AG	CHE-106.930.211	Boningen	04.11.2025	Auditor switch	Olten
Boninger-Frischbeton AG	CHE-106.930.263	Boningen	04.11.2025	Auditor switch	Olten
Kieswerk Boningen AG	CHE-106.930.234	Boningen	04.11.2025	Auditor switch	Olten
Kieswerk Gunzgen AG	CHE-113.756.875	Gunzgen	04.11.2025	Auditor switch	Olten