Auditor in
Olten
20 companies in Auditor based in Olten — name and year of registration from the commercial register. The list below shows them all.
All 20 companies in Olten
Gribi & Partner AG
Since 1990 · 11–20 empl.4.3(6)
Gribi & Partner AG is an owner-managed advisory and fiduciary firm serving businesses, individuals and institutions. Its services include auditing, tax and VAT consulting, bookkeeping, financial and payroll accounting, business consulting, succession planning and company valuations.
emas Treuhand GmbH
Since 2021 · 1–10 empl.5.0(12)
emas Treuhand GmbH is an independent fiduciary services firm serving small and medium-sized businesses and private individuals. Its services include accounting and annual financial statements, payroll accounting, tax returns, limited audits, business consulting, company valuations and succession planning.
Solidis Revisions AG
Since 1976 · 11–20 empl.
Solidis Revisions AG is an auditing and fiduciary services firm offering audits and tax advice. Its services also include financial accounting, personnel administration, corporate consulting and other fiduciary services for businesses, pension funds, municipalities, non-profit organizations and individuals.
HTO Treuhand AG
Since 1980 · 11–20 empl.
HTO Treuhand AG is a fiduciary and audit firm. Its services include business and tax advisory, financial and payroll accounting, and auditing. It also provides debt collection, estate partition and executor services.
TRESO Treuhand AG
Since 1990 · 11–20 empl.
TRESO Treuhand AG provides fiduciary, audit, tax and accounting services. Its work includes financial statement advice, business succession, audits, national and international tax consulting, payroll accounting and accounting outsourcing.
Emmenegger Fides AG
Since 1992 · 11–20 empl.
Emmenegger Fides AG is a fiduciary and business advisory firm serving companies and individuals. Its services include bookkeeping and financial statement advisory, auditing, tax advice and business consulting, including support with succession planning, financial planning and restructuring.
Forensis Treuhand AG
Since 2001 · 11–20 empl.
Forensis Treuhand AG provides tax, fiduciary, business advisory and audit services. Its services include tax advice for companies and individuals, accounting, payroll and personnel administration, and advice on business formations and restructurings.
Otto Treuhand AG
Since 2006 · 1–10 empl.4.4(7)
Otto Treuhand AG provides fiduciary services in taxation, accounting and controlling, business consulting, and auditing. Its services include tax returns, financial and payroll accounting, financial planning, support with company formations and restructurings, and business valuations.
BDO AG
Since 2010 · 1–10 empl.
BDO AG is an audit, fiduciary and consulting firm. Its services include auditing, tax and legal advice, financial services, business consulting and digital solutions.
Hubeli Treuhand GmbH
Since 2014 · 1–10 empl.
Hubeli Treuhand GmbH is an independent fiduciary firm providing accounting, tax advisory, auditing and business consulting services. Its work includes financial and payroll accounting, tax returns, annual financial statement audits, and advice on company formation and succession planning.
Z83 AG
Since 2020 · 21–50 empl.
Z83 AG provides fiduciary services for businesses, including accounting, payroll, VAT, tax returns and annual financial statements. Its services also include CFO support, tax advisory, auditing and IT consulting for financial processes, ERP systems and integrations.
Oltreu GmbH
Since 2019 · 1–10 empl.
Oltreu GmbH is a fiduciary and audit firm providing financial audits, bookkeeping, financial statement preparation and advice, and tax services. It also advises businesses and individuals on matters including financial planning, company formation and succession.
Acta-Treuhand AG
Since 1964 · 1–10 empl.4.0(10)
Acta-Treuhand AG provides fiduciary services in bookkeeping, payroll administration, taxation and auditing. Its services also include business consulting, financial and business plans, and support with company formation, succession planning and business transactions.
Solidis Treuhand AG
Since 1971 · 11–20 empl.4.0(4)
Solidis Treuhand AG provides fiduciary and business services, including auditing, tax advice and corporate consulting. Its services also cover accounting, personnel administration, outsourcing of administrative tasks and real estate matters.
Conz Treuhand AG
Since 1987 · 11–20 empl.4.0(4)
Conz Treuhand AG provides auditing, tax advisory and accounting services. Its activities also include payroll administration, business consulting and fiduciary services, as well as the management, valuation and brokerage of real estate.
Treuhand und Revisionen Bruno Gervasoni Dipl. Buchhalter/Controller
Since 1987 · 1–10 empl.
Gastroconsult AG
Since 1997 · 1–10 empl.
ReviCare GmbH
Since 2001 · 1–10 empl.
KMU Treuhand und Revisions AG
Since 2008 · 1–10 empl.
marc hert Consulting Wirtschaftsprüfung GmbH
Since 2008 · 1–10 empl.
Auditor in Olten
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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