Fiduciary Offices in the
Canton of St. Gallen
992 companies in Fiduciary Offices based in the Canton of St. Gallen — name and year of registration from the commercial register.
50 of 992 companies
ATG Business AG
Since 2012 · 11–20 empl.5.0(110)
The core activity of ATG Business AG encompasses three main areas: 1. **Trust Services**: The company provides trust services, including accounting, tax returns, and other financial services. 2. **Insurance**: ATG Business AG acts as an insurance broker and offers insurance services, including the placement of insurance policies and support in the event of claims. 3. **Tax Returns**: The company supports clients in the preparation and submission of tax returns and also offers consulting services in tax matters. Overall, ATG Business AG offers a combination of financial, insurance-related, and tax services to support clients in these areas.
RT Immobilien Treuhand AG
Since 1997 · 11–20 empl.4.8(70)
RT Immobilien Treuhand AG provides real estate and fiduciary services. Its real estate activities include property purchase and sale, valuation, brokerage, advisory services and property management (rental and condominium administration); its fiduciary services cover company formation, bookkeeping and financial statements, tax and payroll matters, succession and restructuring advice, limited statutory audits and digital accounting solutions.
RT Treuhand AG
Since 2000 · 11–20 empl.4.8(70)
RT Treuhand AG provides fiduciary services to businesses and private clients, including company formation, accounting with annual financial statements, VAT declarations, payroll and tax advisory. The firm also performs limited audits for SMEs, foundations and associations and supports clients with digital accounting solutions (e.g. Abacus, Bexio, Klara).
Eberle Treuhand und Verwaltungs-AG
Since 1970 · 11–20 empl.4.6(25)
Eberle Treuhand und Verwaltungs-AG is part of FIT – Finanzen, Immobilien und Treuhand and provides services in finance, real estate and fiduciary services. Its range includes financial consulting, property management, fiduciary services, accounting, tax matters and auditing.
GMTC Treuhand & Consulting AG
Since 1996 · 11–20 empl.4.8(16)
The core activity of GMTC Treuhand & Consulting AG is the provision of trust services, particularly in the areas of accounting, tax consulting, business consulting, company formation, digitalization and marketing, specifically for small and medium-sized enterprises (SMEs) as well as self-employed individuals and private persons from various industries, such as doctors and healthcare, architecture, real estate and law firms.
Wettstein & Partner Treuhand AG
Since 2002 · 21–50 empl.4.8(21)
The core activity of Wettstein & Partner Treuhand AG encompasses the areas of accounting, tax consulting, auditing and business consulting. The company offers services such as business valuation, tax planning, tax representation, auditing and business consulting to support customers in fulfilling legal requirements and ensuring quality, transparency and trust.
Kamber Treuhand AG
Since 1993 · 1–10 empl.5.0(16)
Kamber Treuhand AG provides fiduciary and tax services for private individuals and corporate clients. Services include bookkeeping, VAT returns, annual financial statements, payroll, company formation and register changes, audit services, digitalization projects, outsourcing and property administration.
Immo-Treuhand AG
Since 2010 · 11–20 empl.4.5(51)
The core activity of Immo-Treuhand AG is the provision of services in the field of real estate economics, particularly in the areas of: Portfolio Management: purchase and sales consulting, support in transactions for the strategic expansion or optimization of real estate portfolios; Rental and Tax Law: consulting and representation in rental and tax law matters; Project Developments with Initial Rental: development and management of real estate projects with the goal of initial rental; Property Accounting: management of accounting for real estate; Administration of Rental Properties: administration and maintenance of rental properties. The company also offers additional services such as sustainability management, financing and trust services.

consis Treuhand AG
Since 2005 · 11–20 empl.4.7(12)
consis is a fiduciary and auditing office that supports SMEs in the areas of accounting, payroll, succession, tax consulting, auditing, and Abacus software solutions.
WIESER Wirtschaftsberatung AG
Since 2003 · 1–10 empl.4.6(18)
WIESER Wirtschaftsberatung AG provides advisory and fiduciary services, including accounting, tax, payroll administration, corporate structuring and business consulting. The company assists clients with finance and administrative processes through lawful tax planning and structured procedures.
WIESER Wirtschaftsprüfung AG
Since 2003 · 1–10 empl.4.6(18)
WIESER Wirtschaftsprüfung AG provides audit and control‑body mandates and prepares economic expert reports. Services include statutory and chartered audits, audits of incorporations, changes of domicile, capital increases or reductions, and other business‑economic assessments.
df audit GmbH
Since 2016 · 1–10 empl.4.9(32)
The core activity of the company "df audit gmbh" encompasses services in the following areas: * Trust services: Support in founding companies, accounting, taxes and audits * Accounting: Taking over accounting tasks, payroll accounting, collection and annual financial statements * Taxes: Support in tax returns and optimization * Secretariat: Taking over administrative tasks * Audits: Conducting limited audits, examinations and founding audits The company thus offers comprehensive services for companies in the areas of finance, administration and accounting.
Kamber Treuhand AG
Since 2000 · 1–10 empl.5.0(16)
Kamber Treuhand AG provides fiduciary, accounting and tax services for private individuals and companies. Its services also include company formation and commercial-register changes, auditing, payroll, digitalisation, property management, financial planning and outsourcing.
WBT Treuhand AG
Since 2008 · 1–10 empl.4.8(26)
The company's core activity is providing services in the field of financial and corporate consulting, particularly in the areas of accounting, tax planning, human resources management, and real estate management. The company offers its clients solution-oriented consulting and support in overcoming challenges and securing values.
Stieger Treuhand AG
Since 2005 · 21–50 empl.5.0(4)
The core activity of Stieger Treuhand AG is the provision of services in the areas of trust accounting, tax consulting, auditing, business consulting, legal consulting and real estate consulting, in particular for small and medium-sized enterprises from all industries.
ACV WILLI Treuhand + Immobilien AG Buchs
Since 1994 · 11–20 empl.4.9(10)
ACV WILLI Treuhand + Immobilien AG Buchs is a services firm offering fiduciary (treuhand), real estate and business consulting services, as well as auditing services provided via ACV Wirtschaftsprüfung AG. Fiduciary tasks range from tax returns to estate settlement; real estate services include sales, rentals, property valuation and project development.
ACV Steuerberatung AG
Since 1981 · 1–10 empl.4.9(10)
ACV Steuerberatung AG provides fiduciary and tax advisory services as well as real-estate services, business consulting and auditing. It supports private clients and companies with tax returns, estate matters, property transactions and management consulting.
Brenner Treuhand AG
Since 1982 · 11–20 empl.5.0(11)
Brenner Treuhand AG provides fiduciary (treuhand), tax advisory and audit services, as well as legal and real-estate advisory. The firm works notably with physicians and small and medium-sized enterprises, supporting accounting, tax matters and audit tasks.
Haag + Wild Treuhand AG
Since 1989 · 11–20 empl.4.4(64)
The company's core activity is the brokerage and management of real estate, including rental, purchase, sale, valuation and management of properties, as well as the construction of multi-family houses in condominium ownership.
Ramos Treuhand GmbH
Since 2007 · 1–10 empl.4.8(17)
Ramos Treuhand GmbH is a fiduciary firm offering services such as arranging financings, tax advisory, assistance with returning to one’s country of origin and related paperwork, certified translations, and general fiduciary services; the firm also sells automobiles.
TF-Übersetzung, Beratung und Buchhaltung - Firat
Since 2014 · 1–10 empl.5.0(18)
TF-Übersetzung, Beratung und Buchhaltung - Firat offers accounting services including financial and payroll accounting, payroll administration and tax return preparation, and provides business advisory services. The firm also provides translation services in German and Turkish, with translations accepted by the Turkish consulate.
Aggeler Huber & Partner AG
Since 2019 · 11–20 empl.5.0(17)
The core activity of Aggeler Huber & Partner AG is the provision of legal and trust services, particularly in the areas of matrimonial and inheritance law, advance care directives, patient declarations, legal advice, notarizations, accounting, taxes, and pension mandates.

Provida Treuhand AG
Since 2014 · 51–100 empl.5.0(2)
Die Provida Treuhand AG in Rorschach supports companies and organisations in ongoing administrative and financial tasks. Its services include accounting, bookkeeping, annual financial statements, closing advice, personnel administration, payroll accounting, and labor-law topics, consulting and sparring partner for companies, management and interim solutions. It relieves its clients in day-to-day business and assists them in preparing financial and management information.
Fischer + Partner Treuhand AG
Since 1991 · 1–10 empl.5.0(7)
The core activity of Fischer + Partner Treuhand AG is the comprehensive consulting and service in the field of trust and finance for private individuals and companies. This includes in particular: Trust services (accounting, VAT returns, annual accounts, budgets, liquidity planning), Tax consulting (tax-optimized annual financial statements, VAT consulting, tax returns, tax planning), Business consulting (company formations, transformations, restructurings, succession planning), Personnel administration and payroll accounting, Financing and insurance services. The company thus offers a wide range of services to support and advise customers in all financial matters.
Revion Treuhand AG
Since 1990 · 1–10 empl.4.5(8)
Revion Treuhand AG is a fiduciary firm providing accounting, tax advisory, auditing and business consulting services. Its offerings also include succession and estate planning, payroll administration, company formation and restructuring, as well as real-estate services such as sales, property management and property administration.
Ernst & Young AG
Since 1998 · 101–500 empl.4.2(5)
Ernst & Young AG provides professional services including assurance (audit), tax, consulting, strategy and transactions, legal services and technology-enabled managed services. The firm also offers sustainability and AI-enabled solutions (for example EY.ai) to support reporting, transformation and risk management.
Schneiter Treuhand & Immobilien AG
Since 1972 · 1–10 empl.4.9(9)
The core activity of Schneiter Treuhand & Immobilien AG is comprehensive consulting in the areas of trust, taxes, finance and real estate, including internal and external auditing, strategic analysis, consulting and real estate management, with a focus on personal and holistic consulting for private individuals and SMEs.
Brenner Treuhand
Since 1994 · 11–20 empl.5.0(11)
Brenner Treuhand provides fiduciary (treuhand), tax and audit services as well as legal and real-estate advisory. The firm focuses on medical practices and SMEs and offers bookkeeping, payroll administration, year-end accounts, tax optimisation and support for practice openings, acquisitions and succession.
IM Treuhand Irene Meyer
Since 2022 · 1–10 empl.4.9(31)
The core activity of IM Treuhand is the provision of services in the areas of financial and accounting, controlling, company formation, tax consulting and trust services. The company offers personal advice and support to customers in these areas and places a strong emphasis on excellent and trustworthy cooperation.
Nachlasspartner AG
Since 2020 · 1–10 empl.5.0(12)
The core activity of Nachlasspartner AG is inheritance consulting and planning, including the creation of wills, inheritance contracts, advance directives, living wills and cohabitation agreements, as well as support in the execution of wills and the administration of estates.
Kropf & Partner Treuhand GmbH
Since 2002 · 1–10 empl.5.0(5)
The core activity of Kropf & Partner Treuhand GmbH is the provision of services in the areas of auditing, tax consulting, business consulting, financial and accounting, personnel administration, controlling, and pension and succession planning. The company positions itself as a trust partner and offers demanding consulting and administrative support for companies and private individuals.
hartmannpartner experts ag
Since 1999 · 11–20 empl.4.8(5)
M. Hartmann Treuhand AG provides fiduciary, tax and audit services as well as business consulting, succession planning and real estate valuation. The firm handles bookkeeping, preparation of annual financial statements, VAT and fiscal representation, acts as an ABACUS distributor and performs audits as a revision expert approved by the federal audit oversight authority (RAB).
PL Treuhand AG
Since 2009 · 11–20 empl.4.8(6)
PL Treuhand AG provides back‑office services for personnel service providers, handling personnel and payroll administration, payroll processing and statutory reporting. The company also delivers finance and accounting services (accounts receivable/payable, general ledger, annual financial statements, VAT filings) as well as audits, tax filings and general advisory services.
STEFA Treuhand GmbH
Since 2016 · 1–10 empl.5.0(8)
The core activity of STEFA Treuhand GmbH is the provision of services in the field of fiduciary services, particularly in accounting, tax consulting, business consulting and inheritance planning for companies and private individuals.
Sedna Treuhand GmbH
Since 2008 · 1–10 empl.4.8(5)
The core activity of Sedna Treuhand GmbH primarily involves providing services in the areas of: corporate and tax consulting, accounting and payroll, tax returns for natural and legal persons, and property management, including rental and sale of properties. The company specializes in serving SMEs and private individuals.
Widmer Treuhand AG
Since 1980 · 1–10 empl.4.7(7)
The core activities of Widmer Treuhand AG include the areas of: Trust services (including taxes), Law, and Real Estate. The company thus provides services in the fields of financial and tax consulting, legal consulting, as well as property management and consulting.
hartmannpartner audit ag
Since 1987 · 1–10 empl.4.8(5)
hartmannpartner audit ag provides audit and fiduciary services including bookkeeping, preparation of financial statements, VAT handling and tax advisory for companies and private clients. The firm also offers real estate valuation, distribution of ABACUS software, support for business succession and is authorised to perform statutory audits (RAB).
häseli + partner treuhand ag
Since 1994 · 1–10 empl.5.0(5)
The core activity of Häseli Treuhand AG is the provision of services in the areas of trust, tax consulting and company formations. This includes in particular: Trust: The company offers trust services that include the management and administration of companies and their finances. Tax consulting: Häseli Treuhand AG offers tax consulting services that include advice and support on tax matters. Company formations: The company supports the formation of companies and offers corresponding services. Häseli Treuhand AG positions itself as a full-service provider for companies and private individuals, offering a comprehensive range of services in the areas of trust, tax consulting and company formations.
Activa Treuhand + Consulting GmbH
Since 1999 · 1–10 empl.4.7(7)
The core activity of ACTIVA TREUHAND + CONSULTING GMBH is the provision of trust services, tax consulting, legal consulting, business consulting, accounting, auditing, IT solutions and fiscal representation for SMEs, young entrepreneurs, company start-ups, private individuals, inheritance communities and associations.
STR Treuhand Uznach GmbH
Since 2012 · 11–20 empl.4.4(7)
STR Treuhand Uznach GmbH provides fiduciary services, tax advice and audit services, as well as business consulting and startup support. The firm serves corporate and private clients, offers personal consultancy and works with software solutions such as Abacus, Bexio, Taxware and BM Informatik.
Caladious & Partner GmbH
Since 2020 · 1–10 empl.5.0(8)
The core activity of Caladious & Partner is the provision of trust services, particularly in the areas of: company formation and consulting, accounting and payroll, domiciliary and back office services, tax declaration and consulting. The company also offers special services for start-ups and has a network of partners from various industries to provide customers with comprehensive solutions.
Treuhandbüro Hälg AG
Since 2005 · 1–10 empl.4.9(8)
Treuhandbüro Hälg AG provides fiduciary services as well as tax and legal advice, business consulting and auditing. The firm supports clients with accounting, tax matters and corporate advisory services.
Legit Treuhand & Beratung GmbH
Since 2020 · 1–10 empl.5.0(12)
Legit Treuhand & Beratung GmbH is a fiduciary and consulting firm providing financial and payroll accounting, VAT and social security administration, and other administrative services. The company also delivers tax services (tax returns, representation before tax authorities, tax-optimised choice of legal form) and business consulting including business plans, company formation and controlling, with legal matters handled via a partner firm.
AVITAX AG
Since 2024 · 1–10 empl.5.0(22)
The company's core activity is tax consulting and optimization for companies and private individuals, including the preparation of tax reports, the development of tax strategies and support in succession planning, restructuring and reorganization.
AERNE & SCHNELLI TREUHAND AG
Since 1971 · 1–10 empl.5.0(4)
The core activity of Aerne & Schnelli Treuhand AG is the provision of trust services, particularly in the areas of accounting, financial consulting, tax consulting, business consulting, auditing and financial auditing. The company offers these services primarily to small and medium-sized enterprises (SMEs) and positions itself as a reliable partner for trust services in the region.
MKY Group AG
Since 2023 · 1–10 empl.4.7(27)
MKY Group AG is a fiduciary services firm offering bookkeeping, payroll accounting, tax advisory, and controlling & reporting services. It also provides company-formation support and uses digital processes for financial reporting and dashboards.

PROVIDA Wirtschaftsprüfung AG
Since 2000 · 11–20 empl.
Die Provida Wirtschaftsprüfung AG in St. Gallen ist auf Wirtschaftsprüfung, Revision und besondere Prüfungsdienstleistungen spezialisiert. Als unabhängige Revisionsstelle unterstützt sie Unternehmen, Organisationen und Institutionen bei ordentlichen und eingeschränkten Revisionen sowie bei weiteren gesetzlichen und freiwilligen Prüfungen. Sie beurteilt die Vermögens-, Finanz- und Ertragslage risikobasiert, effizient und branchenspezifisch. Zum Angebot gehören zudem Prüfungen von Vorsorgeeinrichtungen und öffentlich-rechtlichen Organisationen, die Gestaltung und Prüfung Interner Kontrollsysteme (IKS), Due-Diligence-Prüfungen, Gutachten, Expertisen und weitere spezifische Prüfungen.
Vitras Treuhand AG
Since 1954 · 1–10 empl.
Vitras Treuhand AG provides tax advisory, accounting and payroll administration services. The fiduciary office supports private clients and companies with tax and administrative matters.
Pro Cura AG Revisions- und Treuhandgesellschaft
Since 1955 · 1–10 empl.
The core activity of PRO CURA AG is the provision of auditing and trust services, including accounting and administrative support.
inspecta treuhand ag
Since 1960 · 21–50 empl.
The company offers comprehensive consulting and services for businesses and individuals in the following areas: Financial and tax consulting (cost and investment accounting, tax and VAT consulting), Legal consulting (marriage, inheritance law, estate planning), Business consulting (company formations, succession planning, business and practice brokerage), Auditing and examination (audits, special examinations), Collection and special consulting, Industry expertise for SMEs and trade, particularly for electrical installation companies, dentists, doctors, housing cooperatives and young entrepreneurs. The core activity of the company is the comprehensive consulting and support of businesses and individuals in all financial, legal and business matters.
Fiduciary Offices in the Canton of St. Gallen
Fiduciary Offices in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 12, 2026
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