Auditor in the
Canton of St. Gallen
156 companies in Auditor based in the Canton of St. Gallen — name and year of registration from the commercial register.
50 of 156 companies
RT Treuhand AG
Since 2000 · 11–20 empl.4.8(70)
RT Treuhand AG provides fiduciary and real estate services to businesses, private individuals and organisations. Its services include accounting, tax advice, company formation, auditing, and real estate valuation, brokerage and management.
Kamber Treuhand AG
Since 1993 · 1–10 empl.5.0(16)
Kamber Treuhand AG provides fiduciary and accounting services to individuals and businesses. Its services include bookkeeping, payroll, tax advice and returns, company formation, auditing, property management and brokerage, and financial planning.
Wettstein & Partner Treuhand AG
Since 2002 · 21–50 empl.4.8(21)
Wettstein & Partner Treuhand AG provides fiduciary services, including bookkeeping, tax and legal advice, and auditing. Its services also include business consulting, such as support with company formation, financial planning and succession.
WIESER Asset Management AG
Since 2007 · 11–20 empl.4.6(18)
WIESER Asset Management AG is part of the WIESER Treuhand Gruppe and provides fiduciary services including accounting, tax, payroll administration, audit services, shell companies, and business consulting. The website also indicates support for finance and administration tasks as well as cross-border cases.
df audit GmbH
Since 2016 · 1–10 empl.4.9(32)
df audit GmbH is a fiduciary and accounting firm serving small and medium-sized businesses, associations and private individuals. Its services include bookkeeping and annual accounts, payroll accounting, tax returns, audits, administrative support, and advice on real estate, company formation and succession planning.
Kamber Treuhand AG
Since 2000 · 1–10 empl.5.0(16)
Kamber Treuhand AG provides fiduciary and accounting services to individuals and businesses. Its services include bookkeeping, payroll, tax services, audits, company formation and commercial register changes, as well as financial planning, property management, and advice on matrimonial and inheritance matters.
WIESER Wirtschaftsprüfung AG
Since 2003 · 1–10 empl.4.6(18)
WIESER Wirtschaftsprüfung AG conducts statutory and non-statutory audits. Its services also include audits relating to company formations, changes of registered office and changes in capital, as well as business and economic assessments.
Stieger Treuhand AG
Since 2005 · 21–50 empl.5.0(4)
Stieger Treuhand AG is a fiduciary services firm providing accounting, tax advice, auditing, and business, legal and property consulting. Its services also include payroll administration, company formation, succession planning and external CFO support.
Revion Treuhand AG
Since 1990 · 1–10 empl.4.5(8)
Revion Treuhand AG provides fiduciary and advisory services to businesses, individuals and business-owning families. Its services include financial accounting, payroll administration, tax advice, business support, independent audits, and the management, valuation and brokerage of real estate.
Ernst & Young AG
Since 1998 · 101–500 empl.4.2(5)
Ernst & Young AG provides assurance and audit services, as well as consulting in business strategy, transactions, tax, law, technology and sustainability. Its services also include managed services and advice on workforce and organizational matters.
Brenner Treuhand
Since 1994 · 11–20 empl.5.0(11)
Brenner Treuhand provides fiduciary and tax advisory services for medical professionals and small and medium-sized businesses. Its services include bookkeeping, financial statements, payroll administration, audits, legal advice and real estate-related support.
Kropf & Partner Treuhand GmbH
Since 2002 · 1–10 empl.5.0(5)
Kropf & Partner Treuhand GmbH provides fiduciary and advisory services for businesses and individuals. Its services include financial accounting, tax advice, payroll and personnel administration, business consulting, controlling and audits.
Activa Treuhand + Consulting GmbH
Since 1999 · 1–10 empl.4.7(7)
Activa Treuhand + Consulting GmbH provides fiduciary and advisory services for businesses, start-ups and private individuals. Its services include accounting and payroll administration, tax and legal advice, audits, business consulting and IT solutions.
hartmannpartner audit ag
Since 1987 · 1–10 empl.4.8(5)
hartmannpartner audit ag provides auditing and audit services. The company is licensed as an audit expert by the Federal Audit Oversight Authority (RAB).
Treuhandbüro Hälg AG
Since 2005 · 1–10 empl.4.9(8)
Treuhandbüro Hälg AG is a fiduciary and accounting firm offering bookkeeping, financial statement preparation, tax and legal advice, business consulting and auditing. It supports businesses with their fiduciary matters.
STR Treuhand Uznach GmbH
Since 2012 · 11–20 empl.4.4(7)
STR Treuhand Uznach GmbH provides fiduciary and business advisory services to companies and individuals. Its services include bookkeeping and financial statements, payroll administration, tax advice, support with business start-ups and business consulting.
AERNE & SCHNELLI TREUHAND AG
Since 1971 · 1–10 empl.5.0(4)
AERNE & SCHNELLI TREUHAND AG provides fiduciary services for SMEs, including bookkeeping, financial and tax advice, business consulting, and auditing. It handles client mandates across a range of business activities.
Rhenum Treuhand AG
Since 1985 · 11–20 empl.5.0(7)
Rhenum Treuhand AG is a fiduciary and accounting services firm offering accounting, auditing and tax advice. Its services also include controlling, business consulting and company formation, payroll and personnel administration, pension and succession planning, and property management.

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.
inspecta treuhand ag
Since 1960 · 21–50 empl.
inspecta treuhand ag provides fiduciary, audit, tax advisory and real estate services for businesses and individuals. Its services include accounting and financial administration, limited and ordinary audits, tax planning, and property management.
Alfa Treuhand- und Revisions AG
Since 1960 · 1–10 empl.
Alfa Treuhand- und Revisions AG provides audit and fiduciary services, along with advice on accounting, finance and controlling. Its services also include tax and legal advice, business valuations, corporate law and succession planning.
OBT AG
Since 1972 · 21–50 empl.
OBT AG provides fiduciary and consulting services to businesses and other institutions. Its activities include auditing, tax and legal advice, HR services, comprehensive IT solutions and business consulting.
TEAG Advisors AG
Since 1973 · 1–10 empl.
TEAG Advisors AG is an independent, multidisciplinary consulting and fiduciary services firm serving businesses, public institutions, non-profit organisations and individuals. Its services cover fiduciary work and auditing, tax and legal advice, strategy and transformation, and marketing and communications.
Prefera Treuhand AG
Since 1974 · 11–20 empl.
Prefera Treuhand AG provides fiduciary and auditing services for businesses. Its services include accounting, tax and business consulting, estate divisions, and audits.
TREHAG Treuhand St. Gallen AG
Since 1976 · 11–20 empl.
TREHAG Treuhand St. Gallen AG is a fiduciary services firm providing tax advice, auditing and accounting services. Its activities also include property management, administrative support, business consulting and financial planning.
Revisora Revisionsgesellschaft AG
Since 1982 · 1–10 empl.
Revisora Revisionsgesellschaft AG provides financial audits, special audits, internal auditing and controlling, as well as expert reports.
Interrevision AG
Since 1982 · 1–10 empl.
Interrevision AG is an audit and business advisory firm. Its services include statutory and limited audits, audits of individual and consolidated financial statements, special audits, and advice on internal control systems and accounting standards.
Alma Treuhand und Beratungs AG
Since 1984 · 1–10 empl.
Alma Treuhand und Beratungs AG provides fiduciary and advisory services to businesses and individuals. Its services include bookkeeping and annual accounts, tax and business advice, personnel and real estate consulting, and audit assignments.
DF Treuhand und Verwaltungs AG
Since 1984 · 1–10 empl.
DF Treuhand und Verwaltungs AG provides fiduciary and administrative services. Its activities include accounting and payroll, tax and business advice, real estate advice and management, and auditing.
Revisal AG Gossau
Since 1988 · 1–10 empl.
Revisal AG Gossau provides audit and accounting services, tax support and advice for small and medium-sized businesses. Its services include statutory and limited audits, other types of audits, bookkeeping, tax advice and business consulting.
RevisionsPartner AG
Since 1991 · 1–10 empl.
RevisionsPartner AG is an audit and business advisory firm. Its services include statutory and limited audits, voluntary reviews and audits of specific transactions, as well as business consulting, restructuring, company valuations and succession planning.
KPMG AG
Since 1992 · 51–100 empl.
KPMG AG provides audit, tax, legal and advisory services to businesses and organisations. Its work includes management and technology consulting, deal advisory, forensic services, and risk and cybersecurity consulting.
Mettler Treuhand AG
Since 1993 · 1–10 empl.
Mettler Treuhand AG provides fiduciary and audit services for businesses. Its services include financial accounting, annual financial statements, accounting and controlling, payroll and personnel administration, company formation advice, tax advice and audits.
Wyrsch Treuhand AG
Since 1993 · 1–10 empl.
Wyrsch Treuhand AG advises and supports SMEs and private individuals on fiduciary and business matters. Its services include bookkeeping and annual financial statements, tax advice, audits and business consulting.
Horwath Alfa GmbH
Since 1995 · 1–10 empl.
Horwath Alfa GmbH provides auditing, accounting, bookkeeping and financial services, as well as tax and legal advice. Its services also include business consulting, corporate law, succession planning and fiduciary mandates.
in time business consulting ag (itbc)
Since 1997 · 1–10 empl.
in time business consulting ag (itbc) provides fiduciary and consulting services, including management consulting, coaching, controlling, auditing, tax advice and business analysis.
OBT AG, Zweigniederlassung Rapperswil SG
Since 1998 · 11–20 empl.
OBT AG, Zweigniederlassung Rapperswil SG provides fiduciary, audit and consulting services as well as IT solutions. Its services include accounting and payroll administration, financial audits, business and tax consulting, HR services and IT support.
Resida Treuhand und Wirtschaftsprüfungs GmbH
Since 1998 · 1–10 empl.
Resida Treuhand und Wirtschaftsprüfungs GmbH provides fiduciary services for businesses and individuals. Its services include bookkeeping and payroll accounting, annual financial statements, tax advice, audits, and consulting on business formation, restructuring and succession planning.
Treviso Revisions AG
Since 2000 · 11–20 empl.
Treviso Revisions AG provides audit, tax advisory, fiduciary and business consulting services. Its work includes statutory and voluntary audits, tax planning, bookkeeping and financial statements, as well as advice on business formation, restructuring and succession.
KEEL + PARTNER AG
Since 2000 · 1–10 empl.
KEEL + PARTNER AG provides auditing, fiduciary, business consulting and tax services. Its activities include statutory and other audits, financial and payroll accounting, corporate advisory services, and tax planning and tax return preparation.
Amivo AG Treuhand + Revision
Since 2001 · 1–10 empl.
Amivo AG Treuhand + Revision provides auditing, tax, fiduciary and business consulting services. Its work includes financial statement audits, tax advice, financial and business planning, and support with company acquisitions, sales and succession planning.
OREEX Treuhand AG
Since 2002 · 1–10 empl.
The core activity of Kern Treuhandpartner AG is the provision of services in the areas of auditing, fiduciary, tax consulting, accounting and management consulting, including the creation of management reporting packages, consolidations and key performance indicators.
consis Wirtschaftsprüfung AG
Since 2002 · 11–20 empl.
consis Wirtschaftsprüfung AG provides audit and assurance services for companies and other organisations. Its work includes limited, ordinary and voluntary audits of annual and consolidated financial statements, as well as special audits, due diligence and audits of foundations and non-profit organisations.
rawp raschle wirtschaftsprüfung
Since 2002 · 1–10 empl.
rawp raschle wirtschaftsprüfung provides auditing, fiduciary, tax and business advisory services. Its work includes financial statement and special audits, bookkeeping and annual accounts, as well as company valuations and advice on internal control systems.
Trewitax St. Gallen AG
Since 2002 · 1–10 empl.
Trewitax St. Gallen AG provides fiduciary, audit and tax advisory services. Its activities include bookkeeping, annual financial statements, business succession advice, and support with corporate reorganisations and restructuring.
Torgler Treuhand AG
Since 2003 · 1–10 empl.
Torgler Treuhand AG provides fiduciary and advisory services to businesses, start-ups, associations, foundations and private individuals. Its services include bookkeeping, annual financial statements, tax and business consulting, interim support and real estate services.
Prefera Audit AG
Since 2003 · 1–10 empl.
Neuhauser+Rosa Treuhand GmbH
Since 2003 · 1–10 empl.
Neuhauser+Rosa Treuhand GmbH provides fiduciary, tax advisory, business consulting and audit services. Its services include bookkeeping, financial statements, payroll accounting, tax returns, business valuations and audits.
ERM Solutions AG
Since 2003 · 11–20 empl.
ERM Solutions AG provides audit and consulting services in financial and IT auditing, internal audit, compliance, and enterprise-wide risk and opportunity management. Its services also include governance, internal control systems and IT security consulting, as well as forensic work such as fraud prevention and investigations.
RTG Revisions- und Treuhandgesellschaft AG
Since 2004 · 1–10 empl.
RTG Revisions- und Treuhandgesellschaft AG provides audit and fiduciary services. Its work includes ordinary and limited audits, incorporation and special audits, audits related to capital increases and reductions, and audits of employee pension funds.
Auditor in the Canton of St. Gallen
Auditor in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of November 15, 2026
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