Company lists · Data refreshed September 2026

Top 25 Audit and assurance service providers worldwide

RevenueBase identified 6,575 company matches for audit and assurance service providers worldwide as of September 2026 and tracks 125,861 professional contacts across them, including 31,207 with verified work emails. India is the largest market and Paris the largest hub.

This list covers company matches for audit and assurance service providers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026. Country and city lists for audit and assurance service providers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built
6,575Companies
125,861Contacts tracked
31,207Verified emails
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The 25 largest audit and assurance service providers worldwide

Ranked by team size
Top 25 of 6,575 company matches for audit and assurance service providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchToronto, CanadaHQ recorded Sep 19, 20265,001-10,0005,573 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchEnterprise, AL, United StatesHQ recorded Sep 19, 20261,001-5,0002,102 contacts →

Exact match

“Carr, Riggs & Ingram (CRI) is a Top 25 nationally-ranked accounting and advisory firm driven by relationships to cultivate growth.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchStockholm, SwedenHQ recorded Sep 19, 20261,001-5,0001,724 contacts →

Exact match

“Grant Thornton är ett ledande revisions- och rådgivningsföretag med över 1400 medarbetare som erbjuder tjänster inom revision, skatt, redovisning och specialistrådgivning.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchChicago, IL, United StatesHQ recorded Sep 19, 20261,001-5,0001,688 contacts →

Exact match

“Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchSydney, AustraliaHQ recorded Sep 19, 20261,001-5,0001,626 contacts →

Exact match

“Your business deserves remarkable support.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchOslo, NorwayHQ recorded Sep 19, 20261,001-5,0001,530 contacts →

Exact match

“We see great value in having a local presence and roots, factors which enable us to work closely with our clients.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchStuttgart, GermanyHQ recorded Sep 19, 20261,001-5,0001,442 contacts →

Exact match

“Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchChennai, IndiaHQ recorded Sep 19, 20261,001-5,0001,199 contacts →

Exact match

“Matrix is a passionate team of professionals providing People, Product, and Process assurance services for enterprises across different industry segments for better compliance and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchKuala Lumpur, MalaysiaHQ recorded Sep 19, 20261,001-5,0001,074 contacts →

Exact match

“About Crowe Malaysia Crowe Malaysia is the 5th largest accounting firm in Malaysia and an independent member of Crowe Global.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchNew Delhi, IndiaHQ recorded Sep 19, 2026501-1,000957 contacts →

Exact match

“S S Kothari Mehta & Company (SSKM) is chartered accountant firm established in 1953 in Kolkata and later on expanded its base to New Delhi, Chandigarh & Mumbai as well.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchDelhi-ncr, IndiaHQ recorded Sep 19, 20261,001-5,000952 contacts →

Exact match

“Nangia & Co LLP stands as a preeminent one of the top leading CA firm in India with a remarkable four-decade legacy of enriching the business landscape for an extensive clientele…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchChennai, IndiaHQ recorded Sep 19, 2026501-1,000916 contacts →

Exact match

“Established in 1978, PKF Sridhar & Santhanam LLP firm of Chartered Accountants, carry the legacy of vast experience and varied exposure in the industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchKuala Lumpur, MalaysiaHQ recorded Sep 19, 2026501-1,000885 contacts →

Exact match

“BDO is one of the world's largest professional services organisations providing professional services in 166 countries and territories, with more than people working out of 1,800…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchOrléans, FranceHQ recorded Sep 19, 20261,001-5,000800 contacts →

Exact match

“Pour ORCOM, le conseil est un état d'esprit.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchMumbai, IndiaHQ recorded Sep 19, 2026501-1,000601 contacts →

Exact match

“Founded in 1934, by two gentlemen to whom integrity was paramount, Mr.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchWien, AustriaHQ recorded Sep 19, 20261,001-5,000599 contacts →

Exact match

“Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchLexington, KY, United StatesHQ recorded Sep 19, 2026501-1,000590 contacts →

Exact match

“Dean Dorton provides an integrated suite of audit, tax, business management, consulting, and technology solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchTel Aviv, IsraelHQ recorded Sep 19, 20261,001-5,000574 contacts →

Exact match

“BDO Israel is a dynamic and business oriented accounting and consulting firm, ranking amongst the five leading industry firms in Israel and part of the international network BDO.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchKuala Lumpur, MalaysiaHQ recorded Sep 19, 2026501-1,000521 contacts →

Exact match

“Established in 1978, Baker Tilly is ranked the 6th largest accounting and business advisory firm in Malaysia, with 80 Partners and Directors, 14 offices across Malaysia and an…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 19, 20261,001-5,000505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchChicago, IL, United StatesHQ recorded Sep 19, 20265,001-10,000505 contacts →

Exact match

“Forget what you think you know about professional services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchNew York, United StatesHQ recorded Sep 19, 2026201-500467 contacts →

Exact match

“Prager Metis CPAs is an independent, full service, public accounting and consulting firm.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchSão Paulo, BrazilHQ recorded Sep 19, 2026201-500440 contacts →

Exact match

“A PP & C Auditores Independentes é uma firma de auditores e especialistas nas áreas de impostos e consultoria empresarial.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchParis, FranceHQ recorded Sep 19, 2026201-500436 contacts →

Exact match

“Nexia S&A, acteur de l’audit et du conseil, apporte des solutions pertinentes à ses clients dans les domaines comptables et financiers et les accompagne pour les mettre en œuvre.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchRiyadh, Saudi ArabiaHQ recorded Sep 19, 202651-200409 contacts →

Exact match

“ECOVIS Al Sabti, in the Kingdom of Saudi Arabia, is a member firm of the ECOVIS International network.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 6,575 audit and assurance service providers worldwide

See the full list, filter by size, metro and specialty, and access 31,207 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Audit and assurance service providers worldwide at a glance

As of Sep 19, 2026
24.8%Verified-email coverage
19.1Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Paris
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
2,825
11-50
2,792
51-200
729
201-500
125
501-1,000
28
1,001-5,000
31
5,001-10,000
7
10001+
7

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for audit and assurance service providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “audit and assurance service providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 31,207 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Audit and assurance service providers by location

35 lists · largest first

Every Audit and assurance service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “audit and assurance service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many audit and assurance service providers are there worldwide?

RevenueBase identified 6,575 company matches for audit and assurance service providers worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

PWC Canada tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most audit and assurance service providers?

India leads with 1,037 companies, followed by the United States (590) and France (403). Every audit and assurance service providers list by country and city is linked on this page.

Which city has the most audit and assurance service providers?

Paris leads with 104 company records, followed by Dubai (103) and Mumbai (103).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 31,207 professional contacts with verified work emails tracked across these 6,575 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.