Auditor in
Solothurn

13 companies in Auditor based in Solothurn — name and year of registration from the commercial register. The list below shows them all.

Companies

All 13 companies in Solothurn

Lemag Treuhand+Partner AG Logo

Lemag Treuhand+Partner AG

Since 1998 · 1–10 empl.5.0(7)

Lemag Treuhand+Partner AG is a consulting and audit firm providing fiduciary, accounting and payroll services. Its services also include financial audits, tax and business consulting, software support and outsourcing.

AuditorFiduciary servicesPayroll accountingAudit services
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #1
BDO AG Logo

BDO AG

Since 1945 · 11–20 empl.

BDO AG is an audit, fiduciary and consulting firm. Its services include auditing, fiduciary services, tax and legal advice, financial services, business consulting and digital services for companies, public administrations and non-profit organisations.

Management consultantBusiness auditingTrust servicesTax advisory
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
Unico Treuhand Solothurn AG Logo

Unico Treuhand Solothurn AG

Since 2009 · 1–10 empl.

Unico Treuhand Solothurn AG provides fiduciary and business advisory services for companies and individuals. Its services include accounting, annual financial statements, financial and tax advice, business consulting, payroll and personnel administration, and audits.

Management consultantFiduciary servicesTax advisoryBusiness consulting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
CV Treuhand AG Logo

CV Treuhand AG

Since 2003 · 11–20 empl.4.3(6)

CV Treuhand AG provides accounting, tax advisory, personnel administration, business consulting and auditing services. Its work includes financial statements, payroll administration, tax planning, and statutory and limited audits.

AuditorBookkeepingTax consultingHR administration
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #4
Schärer & Partner Treuhand AG Logo

Schärer & Partner Treuhand AG

Since 2000 · 1–10 empl.3.3(14)

Schärer & Partner Treuhand AG provides fiduciary and advisory services to businesses, public administrations and private individuals. Its services include accounting, tax advice, auditing, business and pension consulting, and property management.

AuditorAccountingTax consultingAuditing
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #5
Rüfenacht Heer Partner AG Logo

Rüfenacht Heer Partner AG

Since 1981 · 11–20 empl.1.0(2)

Rüfenacht Heer Partner AG is a fiduciary and auditing firm. It provides audits, accounting and advisory services, and tax and legal advice for businesses and individuals, including bookkeeping, financial statements, VAT and payroll accounting, and advice on company formation, transactions and succession planning.

AuditorFiduciary advisoryAuditingTax and legal advisory
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #6
GSW Revisions AG Logo

GSW Revisions AG

Since 2020 · 21–50 empl.5.0(1)

GSW Revisions AG provides audit services to small and medium-sized businesses, foundations, associations and individuals. Its services include limited audits, audits of annual financial statements under Swiss GAAP FER, and special and extraordinary audits.

AuditorFinancial auditing
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #7
4udit.ch AG Logo

4udit.ch AG

Since 2024 · 1–10 empl.

4udit.ch AG provides an online platform for preparing and carrying out limited audits for Swiss SMEs. A digital assistant guides users through collecting and submitting documents, and the audit team reviews them and completes the audit. The company also offers special audits.

AuditorOnline audit for Swiss SMEsSpecial audits
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #8
Contas Treuhand AG Logo

Contas Treuhand AG

Since 2000 · 11–20 empl.4.0(2)

Contas Treuhand AG provides fiduciary and accounting services, including bookkeeping, financial statements and payroll administration. Its services also include tax advice, audits and business consulting, such as support with company formations, succession planning and financial planning.

AuditorFinancial close & bookkeepingTax advisoryAuditing
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #9
Bargetzi Revisions AG Logo

Bargetzi Revisions AG

Since 2016 · 1–10 empl.3.0(2)

Bargetzi Revisions AG conducts limited audits and reviews for legal entities, including companies, foundations and associations. Its audits cover annual financial statements and take account of statutory requirements and the principles of the Swiss accounting profession.

Management consultantAuditsBusiness consultingTrust services
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #10
Bonfina Treuhand GmbH Logo

Bonfina Treuhand GmbH

Since 2008 · 1–10 empl.3.0(2)

Bonfina Treuhand GmbH is an audit and consulting firm serving small and medium-sized businesses. Its services include tax and business advice, bookkeeping and support with financial accounting, as well as outsourced accounting work, company formation, registered office services and board mandates.

AuditorTax advisoryAccounting / SupportOutsourcing of accounting
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #11
S&

Schärer & Partner Revision AG

Since 1992 · 1–10 empl.

Auditor
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Auditor in Solothurn

13AuditorCommercial register (Zefix) · as of November 15, 2026
2003Median year of registrationCommercial register (Zefix) · as of November 15, 2026
62in the Canton of SolothurnCommercial register (Zefix) · as of November 15, 2026
2,530in SwitzerlandCommercial register (Zefix) · as of November 15, 2026
Locations

Auditor in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 15, 2026

Largest places

Olten20