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Fact Sheet Treuhand- und Steuerberatungsbüro Martin Koller

Core Company Information
Company Name Treuhand- und Steuerberatungsbüro Martin Koller
UID CHE-106.721.771
Alternative / previous Names -
Domicile Mellingen
Canton AG
Legal Form Sole proprietorship
Firm Inscription Date 11.12.1990
FAOA Information
FAOA ID 504131
RAB Permission licensed auditor
FAOA License active (since 25.08.2009)
Link to FAOA website View auditor profile at FAOA
Branch offices (0) -
Membership in Associations TREUHAND|SUISSE
Number of auditors with permission 1  (4.00 audit engagements per employee on average)
Auditor Statistics

Average engagement duration: 22.2 years (max.: 29.6 years)

Total number of statutory audit engagements: 4 (Ranked #203 in Switzerland)

Change in number of audit engagements: - (since 31.12.2023), - (over the last 12 months)

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

  Aargau Zürich ∑
Limited corporation 3 1 4
∑ 3 1 4

This audit firm is recorded as statutory auditor for 4 deleted entities. These are not included in the table above.

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Latest audit engagements
These are this auditor's latest audit engagements.
 
Client Name Client UID Domicile Start Date Type of switch Auditor Branch
Abo Druck Abt AG CHE-106.775.399 Niederwil (AG) 17.08.2021 Auditor switch Mellingen
J. Moser Consulting AG CHE-108.739.049 Mellingen 29.01.2021 Auditor switch Mellingen
Almira Group Holding AG CHE-110.509.702 Zug 11.01.2021 Auditor switch Mellingen
ReCare AG CHE-100.134.078 Neuenhof 11.01.2021 Auditor switch Mellingen
Almira Management Services AG CHE-115.813.136 Zürich 14.12.2020 Auditor switch Mellingen
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
Prosoft Aarau AG in Liquidation CHE-108.591.410 Aarau 16.02.2018 Opting-out Mellingen
Magnus Huber AG Transporte CHE-103.376.264 Stetten (AG) 30.08.2017 Opting-out Mellingen
Saidoo AG CHE-112.711.226 Zürich 19.02.2013 Opting-out Mellingen
Columbus Film AG CHE-101.147.764 Zürich 07.06.2011 Auditor switch Mellingen
Elisabeth Wiederkehr AG in Liquidation CHE-103.699.566 Illnau-Effretikon 01.11.2010 Opting-out Mellingen