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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryFiduciary Offices

Fiduciary Offices

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13'258 companies found

athanas&partner ag Logo

athanas&partner ag 

Zurich · Since 2014

The core activity of Athanas&Partner is tax consulting for companies and entrepreneurs, particularly in the area of international and Swiss tax law. The specific activities include: tax planning for restructuring, planning and implementation of tax-optimized acquisition structures, conducting tax due diligence, planning and implementation of M&A projects, tax consulting for IPO/Going Private, start-up consulting, and tax support for succession planning. The company positions itself as a sparring partner for companies and entrepreneurs, offering entrepreneurial expertise and long-standing experience in tax law.

Fiduciary Offices
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ath Treuhand GmbH Logo

ath Treuhand GmbH 

Meiringen · Since 2003

ath Treuhand GmbH provides fiduciary and advisory services, including bookkeeping, payroll administration, company formation and restructuring, and tax advice. The firm also offers business and operational consulting such as business plans, financing and cash-flow planning, cost accounting and project controlling.

Fiduciary Offices
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ATO Treuhand AG Logo

ATO Treuhand AG 

Bern · Since 1967

The core activity of ATO Treuhand AG consists of providing services in the field of trust, particularly in the areas of: * Accounting (bookkeeping, payroll accounting) * Taxes (tax declaration, tax consulting, outsourcing as authorized tax representative) * Business consulting (company formation, financial planning, succession planning, inheritance, structural planning) * Auditing The company offers these services as a competent trust company for companies, institutions, associations, private individuals, and non-profit organizations throughout Switzerland and in the cross-border EU area.

Fiduciary Offices
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ATP ReviFid GmbH Logo

ATP ReviFid GmbH 

Biel/Bienne · Since 2015

The core activity of ATP Revifid GmbH is the provision of services in the fields of auditing, business consulting, tax consulting and trust services for small and medium-sized enterprises (SMEs).

Fiduciary Offices
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atrevi GmbH Logo

atrevi GmbH 

Härkingen · Since 2005

The core activity of atrevi GmbH is the provision of tax and corporate consulting services, general trust services, management of customer accounting, incorporation of companies and assumption of audit mandates.

Fiduciary Offices
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atrimos ag Logo

atrimos ag 

Wallisellen · Since 2004

atrimos ag provides modular administrative services for SMEs, focusing on accounting, accounts receivable and payable, and financial reporting. Its services also include payroll administration, tax returns and tax advisory, as well as supplementary offerings such as interim management and due diligence.

Management ConsultingRecruitment & HR ConsultingFiduciary Offices
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Atrinum Group AG Logo

Atrinum Group AG 

Zug · Since 1992

Atrinum Group AG provides regulatory and operational services for financial and regulated businesses. Its offering includes compliance and AML/KYC solutions, support for FinTech and PSP/FinTech license applications, asset management and funds-as-a-service, and introductions to banking and payment partners.

Fiduciary Offices
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ATTENDUS Company AG Logo

ATTENDUS Company AG 

Zug · Since 2002

ATTENDUS Company AG is a globally active family office and fiduciary firm providing legal and business services. Services include administration of trusts, foundations and companies, wills and succession planning, escrow and nominee services, bookkeeping and accountancy, and implementation and administration of employee benefit schemes.

Fiduciary Offices
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ATTESTA, Treuhand- und Verwaltungs-AG Logo

ATTESTA, Treuhand- und Verwaltungs-AG 

Jenins · Since 1966

Fiduciary Offices
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atto treuhand ag Logo

atto treuhand ag 

Oberglatt Zh · Since 2002

The core activity of atto treuhand ag is to accompany and support individuals during their reintegration, particularly within the framework of disability insurance (DI). The services include legal advice, administrative support, asset management and individual care. The company also offers a free initial consultation and assessment to clarify the clients' situation and jointly define goals and steps.

Fiduciary Offices
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Atufina AG Logo

Atufina AG 

Aarau · Since 2013

The core activity of Atufina AG encompasses services in the areas of trust, accounting, payroll and social insurance, family office, taxes, as well as project management and interim management. The company also offers specific services such as the implementation of ERP systems, reorganization, restructuring, and business closure.

Management ConsultingFiduciary Offices
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audax ag Logo

audax ag 

Bad Zurzach · Since 2007

The core activity of audax AG is auditing and revision, in particular the performance of limited and ordinary audits, reviews, auditor's reviews, special and extraordinary audits for companies, foundations and associations.

Fiduciary Offices
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AudEx AG Logo

AudEx AG 

Bremgarten B. Bern · Since 2001

The company provides services in the areas of revision, audit, compliance, finance, taxes, risk management and law, particularly for small and medium-sized enterprises (SMEs). The core activity involves supporting companies in navigating complex regulatory environments, developing strategies and monitoring market and industry trends.

Fiduciary Offices
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Audict fiduciaire SA Logo

Audict fiduciaire SA 

Pully · Since 1989

The core activity of Audict Fiduciaire SA is the provision of services in the fields of accounting, taxes and finance, including expert and auditing services.

Fiduciary Offices
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Audita GmbH Logo

Audita GmbH 

Tegerfelden · Since 2022

The core activity of Audita GmbH is the provision of services in the fields of accounting and auditing, particularly bookkeeping, annual financial statements, trust and revision, specifically for small and medium-sized enterprises (SMEs).

Fiduciary Offices
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Audisa AG für Wirtschaftsprüfung Logo

Audisa AG für Wirtschaftsprüfung 

Wattwil · Since 2007

The core activity of Audisa AG is auditing, particularly the revision of companies, where they are registered as licensed audit experts in the register of the Federal Audit Oversight Authority RAB.

Fiduciary Offices
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Auditax Consulting Corporation Sàrl Logo

Auditax Consulting Corporation Sàrl 

Geneva · Since 2016

Auditax Consulting Corporation Sàrl is an international audit, insurance, investment and financial consultancy offering a range of financial products and services, including short- and long-term insurance, investment and tax advice, investment risk management and advisory services.

Fiduciary Offices
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Auditax Partner AG Logo

Auditax Partner AG 

Zurich · Since 2004

The core activity of AUDITax Partner AG is the provision of services in the areas of tax consulting, trust and accounting.

Fiduciary Offices
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Auditco AG Logo

Auditco AG 

Zurich · Since 1981

Auditco AG provides audit and advisory services as a licensed audit expert, offering ordinary and limited statutory audits, group and special audits, as well as annual financial statement preparation and accounting services. Other services include tax advisory, VAT filings and support on international tax and restructuring matters.

Fiduciary Offices
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Audit & Compliance Solutions (ACS) Sàrl Logo

Audit & Compliance Solutions (ACS) Sàrl 

Geneva · Since 2020

The core activity of ACS Sàrl Fiduciaire is the provision of services in the field of fiduciary business, including audit and compliance solutions.

Fiduciary Offices
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
Per page
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.
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