Accountant in
Olten

37 companies in Accountant based in Olten — name and year of registration from the commercial register. The list below shows them all.

Companies

All 37 companies in Olten

Bussmann & Frey AG Logo

Bussmann & Frey AG

Since 1999 · 11–20 empl.4.9(9)

The core activity of Bussmann & Frey AG encompasses two main areas: 1. **Trust Services**: The company provides trust services, including accounting, financial statement consulting, tax consulting, and general business consulting. 2. **Real Estate**: Bussmann & Frey AG is also active in the real estate sector, offering services such as brokerage and sale of properties, traffic value appraisals, management of rental properties, renting and buying of properties.

AccountantReal estate brokerageProperty managementValuation of market value
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #1
Gribi & Partner AG Logo

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.

AccountantTax advisoryAuditFiduciary & business consulting
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #2
emas Treuhand GmbH Logo

emas Treuhand GmbH

Since 2021 · 1–10 empl.5.0(12)

The core activity of emas Treuhand GmbH is the provision of services in the field of trust services, particularly in the areas of: * Accounting: assumption of accounting tasks for companies and private individuals * Taxes: handling of tax matters, including the preparation of tax returns * Auditing: conducting audits and examinations of companies * Consulting: advising companies and private individuals in all areas of trust services and finance The company thus offers comprehensive services in the field of financial management and consulting.

AccountantBookkeepingTaxesFinancial Audit
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #3
Carlino Trust Logo

Carlino Trust

Since 2020 · 1–10 empl.5.0(10)

Carlino Trust provides fiduciary, accounting and tax advisory services to individuals and businesses. Its services also include payroll administration, financial advice, preparation of business and HR documents, and temporary support in finance and accounting.

AccountantBookkeepingTax advisoryTax Care membership
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
HTO Treuhand AG Logo

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.

AccountantBusiness consultingTax consultingBookkeeping and accounting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
TRESO Treuhand AG Logo

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.

AccountantTrust servicesAuditsTax services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #6
Emmenegger Fides AG Logo

Emmenegger Fides AG

Since 1992 · 11–20 empl.

The core activity of Emmenegger Fides AG is the provision of services in the following areas: accounting and financial reporting, auditing, tax consulting, and business consulting. The company acts as a trust specialist and provides its clients with individual advice and support in these areas, helping them to achieve their entrepreneurial and economic goals.

AccountantBookkeeping and closing adviceAuditingTax advisory
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #7
Forensis Treuhand AG Logo

Forensis Treuhand AG

Since 2001 · 11–20 empl.

The core activity of Forensis Treuhand AG encompasses the provision of services in the areas of tax consulting, trust services, business consulting, and auditing. Specifically, the company offers the following services: tax consulting for companies and individuals, including tax planning, tax deductions, and representation before tax authorities; trust services, such as accounting, personnel and payroll management, as well as representation; business consulting, including succession planning, mergers and acquisitions, and real estate consulting; and auditing, including the review and examination of companies. The company offers its services both nationally and internationally and has branches in Olten and Zurich.

AccountantTax advisoryFiduciary servicesBusiness consulting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #8
SCHAFER Dienste GmbH Logo

SCHAFER Dienste GmbH

Since 2006 · 1–10 empl.

SCHAFER Dienste GmbH is not described on the website as a separate company. The website presents the Arbeitskontrollstelle Kanton Solothurn and its activities in labour-market inspections, monitoring wage and working conditions, and reporting suspected violations such as undeclared work.

AccountantLabour market inspectionsReporting undeclared workReporting permit-required employment
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #9
Otto Treuhand AG Logo

Otto Treuhand AG

Since 2006 · 1–10 empl.4.4(7)

The core activity of Otto Treuhand AG is the provision of trust services, particularly in the areas of taxes, accounting and controlling, corporate consulting and auditing.

AccountantAccounting and controllingTaxesBusiness consulting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #10
adlatus Logo

adlatus

Since 2007 · 11–20 empl.

adlatus is a network of experienced professionals and executives. Its members work as independent consultants, offering their expertise, skills and experience to society and the economy at moderate fees.

AccountantBusiness consulting for SMEsExecutive coachingSuccession planning
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #11
Hubeli Treuhand GmbH Logo

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.

AccountantFiduciary servicesTax advisoryAuditing
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #12
LangSys GmbH Logo

LangSys GmbH

Since 2018 · 1–10 empl.

The core activity of LangSys GmbH is consulting European companies on entering the Chinese market and interacting with Chinese partners, particularly in identifying business potential and providing strategic support.

AccountantConsulting for European-Chinese BusinessesValue chain analysis and optimisation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #13
Z83 AG Logo

Z83 AG

Since 2020 · 21–50 empl.

The core activity of Z83 is to provide trust and CFO services to digital companies, particularly startups and SMEs. This includes, among other things: accounting and payroll processing, VAT returns and tax returns, CFO-as-a-Service (CFOaaS) with proactive consulting and support on financial topics such as process optimization, budgeting and succession solutions, and audits and inspections to ensure compliance with legal regulations. The company supports its customers in processing financial and HR processes, enabling them to have more time for their entrepreneurial goals and dreams.

AccountantFiduciary ServicesCFO ServiceTax Advisory
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #14
KANZLEI ULF BROSOWSKI Logo

KANZLEI ULF BROSOWSKI

Since 2011 · 1–10 empl.

KANZLEI ULF BROSOWSKI provides business consulting to small and medium-sized companies and private individuals. Its services include independent company analyses and valuations, fiduciary administration, investment advice, and support with business relationships and capital raising.

Lawyer
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #15
Oltreu GmbH Logo

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.

AccountantAudit and AssuranceBusiness ConsultingAccounting Services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #16
Acta-Treuhand AG Logo

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.

AccountantAccountingAdvisoryTaxes
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #17
Avida Immobilien-Treuhand AG Logo

Avida Immobilien-Treuhand AG

Since 1990 · 11–20 empl.3.4(83)

Avida Immobilien-Treuhand AG is a real estate services firm offering property management and administration for rental properties and condominium ownership, together with brokerage and sales, property valuation (market-value reports) and real-estate photography. The company serves private and commercial clients and provides full or partial mandates for administrative and technical property management.

AccountantProperty managementMarketing and initial leasing of propertiesProperty brokerage and sale
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #18
Solidis Treuhand AG Logo

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.

AccountantFiduciary servicesTax advisoryAuditing
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #19
Conz Treuhand AG Logo

Conz Treuhand AG

Since 1987 · 11–20 empl.4.0(4)

The core activity of Conz Treuhand AG is the provision of trust services, particularly in the areas of auditing, tax consulting, accounting, business consulting, and property management. The company supports and relieves its clients in these areas, enabling them to focus on their core business.

AccountantFinancial AuditingTax ConsultingAccounting
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #20
BaselLegal GmbH Zweigniederlassung Olten Logo

BaselLegal GmbH Zweigniederlassung Olten

Since 2025 · 1–10 empl.

BaselLegal GmbH Zweigniederlassung Olten is a law firm focused on pension law. It advises and represents pension funds, employers and private individuals, with particular work in occupational pension matters, foundations and tax law.

LawyerOccupational Pensions Law AdviceTax Law Advice
ranQ Trust Score 3.6 out of 5.0, rated Solid, Rank #21
KUB International AG Logo

KUB International AG

Since 2009 · 1–10 empl.

KUB International AG provides business and technology consulting for companies and private clients, including services in fiduciary administration, investment and finance. Its services include company analysis and valuation, domiciliation, and advice and support with company formation.

AccountantBusiness consultingBusiness & technology advisoryBusiness domiciliation
No score yet
Richard Finance GmbH Logo

Richard Finance GmbH

Since 2026 · 1–10 empl.

Richard Finance GmbH is an insurance broker providing advice on insurance, financial and tax matters. It compares offers from different insurance companies and supports clients in selecting and implementing suitable solutions.

AccountantInsurance AdvisoryFinancial AdvisoryTax Advisory
No score yet
PK

PVM Konzept AG

Since 1973 · 1–10 empl.

Accountant
No score yet
RI

Reize Immobilien AG

Since 1977 · 1–10 empl.

Accountant
No score yet
VA

Veto AG

Since 1978 · 1–10 empl.

Accountant
No score yet
TU

Treuhand und Revisionen Bruno Gervasoni Dipl. Buchhalter/Controller

Since 1987 · 1–10 empl.

Accountant
No score yet
MH

Marc Hert Consulting

Since 1987 · 1–10 empl.

Accountant
No score yet
GA

GeRoGestions AG

Since 1990 · 1–10 empl.

Accountant
No score yet
AG

AB GmbH

Since 2001 · 1–10 empl.

Accountant
No score yet
RG

ReviCare GmbH

Since 2001 · 1–10 empl.

Accountant
No score yet
IA

ImmoOlten AG

Since 2005 · 1–10 empl.

Accountant
No score yet
CG

calmida gmbh

Since 2007 · 1–10 empl.

Accountant
No score yet
HI

Hübeli Immo AG

Since 2010 · 1–10 empl.

Management consultant
No score yet
AT

ASIMO Treuhand AG

Since 2020 · 1–10 empl.

Accountant
No score yet
IA

Immokreis AG

Since 2023 · 1–10 empl.

Accountant
No score yet
AT

Aureum Treuhand & Interim Management GmbH

Since 2024 · 1–10 empl.

Accountant
No score yet

Accountant in Olten

37AccountantCommercial register (Zefix) · as of November 6, 2026
2005Median year of registrationCommercial register (Zefix) · as of November 6, 2026
365in the Canton of SolothurnCommercial register (Zefix) · as of November 6, 2026
17,180in SwitzerlandCommercial register (Zefix) · as of November 6, 2026
Locations

Accountant in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 6, 2026