Auditor in
Aarau

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

Companies

All 20 companies in Aarau

thv AG Logo

thv AG

Since 1958 · 21–50 empl.5.0(2)

thv AG provides fiduciary services, audits, and business, legal and tax consulting. It serves small and medium-sized enterprises and non-profit organizations.

Management consultantFiduciary servicesBusiness auditingBusiness consulting
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #1
Welte Treuhand AG Logo

Welte Treuhand AG

Since 1987 · 1–10 empl.4.7(7)

Welte Treuhand AG provides fiduciary services to businesses and individuals. Its services include bookkeeping and financial statements, tax returns and advice, payroll accounting, administrative support, business advice, and assistance with company formation and succession.

AuditorAccountingTax advisoryPayroll accounting
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #2
Ernst & Young AG Logo

Ernst & Young AG

Since 1998 · 51–100 empl.

Ernst & Young AG provides audit and assurance services, as well as consulting in strategy, transactions, technology and transformation. Its services also include tax and legal advice.

LawyerFinancial auditingTax advisoryBusiness consulting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
ITERA AG Logo

ITERA AG

Since 1999 · 11–20 empl.

ITERA AG provides fiduciary and tax advisory services, as well as services in accounting, controlling, IT, personnel and legal matters. Its activities also include auditing, financial and pension planning, and support with business succession.

AuditorTrust servicesTax advisoryAccounting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
KSG Kompetenzzentrum für Städte und Gemeinden AG Logo

KSG Kompetenzzentrum für Städte und Gemeinden AG

Since 2001 · 11–20 empl.

KSG Kompetenzzentrum für Städte und Gemeinden AG provides services to public-sector organizations. Its work includes financial and organizational consulting for municipalities and other public institutions, audits, temporary staff assignments, and support with specialized tasks.

Management consultantConsultingAuditTemporary staff assignments
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
Acklin & Keusch AG Logo

Acklin & Keusch AG

Since 2002 · 1–10 empl.

Acklin & Keusch AG is a fiduciary and audit firm. Its services include bookkeeping and administration, tax advice, auditing and business consulting, including advice on company formation, restructuring and liquidation.

Management consultantBookkeeping and administrationTax advisoryFinancial auditing
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #6
SRG Schweizerische Revisionsgesellschaft AG Logo

SRG Schweizerische Revisionsgesellschaft AG

Since 2014 · 1–10 empl.

SRG Schweizerische Revisionsgesellschaft AG provides auditing and advisory services to small and medium-sized enterprises. Its work includes statutory and limited audits, specialist audits, and advice on accounting, business valuations, internal controls and risk management.

AuditorFinancial auditSpecial auditsReview of processes and internal controls
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #7
aaretax Treuhand AG Logo

aaretax Treuhand AG

Since 2016 · 1–10 empl.

aaretax Treuhand AG provides fiduciary, accounting, tax advisory and audit services for businesses and individuals. Its services include business consulting, financial and payroll accounting, and personnel administration.

AuditorTrust servicesTaxes (Tax advisory)Financial auditing
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #8
Realit Treuhand AG Logo

Realit Treuhand AG

Since 1974 · 11–20 empl.3.4(173)

Realit Treuhand AG provides services and advisory work in real estate and fiduciary matters. Its services include property management, valuation and brokerage, as well as tax advisory, audit and business consulting.

AuditorBusiness consultingAuditingTax consulting
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #9
invicto ag Logo

invicto ag

Since 2021 · 1–10 empl.

AuditorFiduciary servicesCorporate finance advisoryAudit and assurance
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #10
Gruber Partner AG Logo

Gruber Partner AG

Since 1986 · 11–20 empl.5.0(1)

Gruber Partner AG provides auditing, fiduciary and business consulting services. Its activities include financial statement audits, bookkeeping, payroll and personnel administration, tax advice, business valuation and succession planning.

Management consultantFinancial AuditFiduciary ServicesBusiness Consulting
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #11
RVW Revisions AG Logo

RVW Revisions AG

Since 1989 · 1–10 empl.5.0(2)

RVW Revisions AG is an audit and assurance firm serving small and medium-sized businesses. Its services include financial statement and special audits, company valuations, and incorporation, capital and due diligence reviews.

AuditorAnnual financial statement auditsSpecial auditsBusiness valuations
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #12
Savoy Treuhand AG Logo

Savoy Treuhand AG

Since 2007 · 11–20 empl.5.0(1)

Savoy Treuhand AG provides auditing, fiduciary, tax and business advisory services to SMEs, foundations, self-employed professionals and private individuals. Its services include bookkeeping and financial statements, tax advice, audits, and advice on company formations, conversions and liquidations.

AuditorTrust servicesTax advisoryAudits and special examinations
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #13
PricewaterhouseCoopers AG Logo

PricewaterhouseCoopers AG

Since 1998 · 51–100 empl.1.0(1)

PricewaterhouseCoopers AG provides audit, tax and consulting services. Its services also include deals, legal advice, fiduciary and technology services, and advice for family businesses and SMEs.

Management consultantFinancial auditConsultingTax advisory
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #14
REIST PARTNER AG Logo

REIST PARTNER AG

Since 1991 · 1–10 empl.5.0(1)

REIST PARTNER AG is a fiduciary and audit firm serving businesses and individuals. Its services include accounting, payroll administration, tax and business consulting, audits, and real estate services.

Management consultantBookkeepingTax ConsultingBusiness Consulting
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #15
SRC Christen AG Logo

SRC Christen AG

Since 2011 · 1–10 empl.5.0(1)

SRC Christen AG is a fiduciary and auditing firm providing audit services, tax advice and planning, and business consulting. Its services also include bookkeeping, financial statement support, payroll administration and financial advice.

Management consultantTax advisory and tax planningAuditing and special auditsBusiness and financial consulting
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #16
BA

BDO AG

Since 1977 · 1–10 empl.

Management consultant
No score yet
B&

B & S Treuhand AG

Since 1997 · 1–10 empl.

Management consultant
No score yet
AR

AWB Revisionen AG

Since 2003 · 1–10 empl.

Auditor
No score yet
AA

Arimec Audit AG

Since 2019 · 1–10 empl.

Auditor
No score yet

Auditor in Aarau

20AuditorCommercial register (Zefix) · as of November 15, 2026
1999Median year of registrationCommercial register (Zefix) · as of November 15, 2026
132in the Canton of AargauCommercial 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