Company lists · Data refreshed September 2026

Top 25 Audit and assurance firms worldwide

Name: Audit and assurance firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 15,794 companies tracked

RevenueBase identified 15,794 company matches for audit and assurance firms worldwide as of September 2026 and tracks 1,112,549 professional contacts across them, including 355,644 with verified work emails. The United States is the largest market and Dubai the largest hub.

This list covers company matches for audit and assurance firms 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 firms 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

15,794Companies

1,112,549Contacts tracked

355,644Verified emails

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The 25 largest audit and assurance firms worldwide

Ranked by team size

Top 25 of 15,794 company matches for audit and assurance firms 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	EY	Exact match	London, United KingdomHQ recorded Sep 19, 2026	10001+	375,085 contacts →
	Exact match “EY is building a better working world by creating new value for clients, people, society, the planet, while building trust in the capital markets.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	PWC	Exact match	London, NY, United KingdomHQ recorded Sep 19, 2026	10001+	173,408 contacts →
	Exact match “At PwC, we help clients drive their companies to the leading edge.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	PWC India	Exact match	Kolkata, IndiaHQ recorded Sep 19, 2026	10001+	26,651 contacts →
	Exact match “At PwC, we help clients build trust and reinvent so they can turn complexity into competitive advantage.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Kpmg UK	Exact match	London, United KingdomHQ recorded Sep 19, 2026	10001+	14,509 contacts →
	Exact match “Make growth happen.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	PWC UK	Exact match	London, United KingdomHQ recorded Sep 19, 2026	10001+	11,078 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Baker Tilly US	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	10001+	10,534 contacts →
	Exact match “Baker Tilly is a leading advisory, tax and assurance firm, providing clients with a genuine coast-to-coast and global advantage in major regions of the U.S.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	PWC Deutschland	Exact match	Frankfurt Am Main, GermanyHQ recorded Sep 19, 2026	10001+	10,357 contacts →
	Exact match “PwC is the leading auditing and consulting company in Germany.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	BDO USA	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	10001+	10,078 contacts →
	Exact match “At BDO, our success is measured by what we achieve together.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Kpmg Australia	Exact match	Sydney, AustraliaHQ recorded Sep 19, 2026	5,001-10,000	9,024 contacts →
	Exact match “Welcome to KPMG.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	CROWE	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	5,001-10,000	8,390 contacts →
	Exact match “Crowe provides professional services through two separate entities: Crowe LLP delivers audit and attest services, and Crowe Advisory LLC provides tax, advisory, consulting, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	BDO UK	Exact match	London, United KingdomHQ recorded Sep 19, 2026	5,001-10,000	6,933 contacts →
	Exact match “BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Kpmg France	Exact match	Paris La Défense, FranceHQ recorded Sep 19, 2026	10001+	5,839 contacts →
	Exact match “Leader de l'audit, du conseil et de l'expertise comptable, KPMG France est membre de KPMG International, réseau de cabinets indépendants exerçant dans 155 pays.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	BDO Canada	Exact match	Toronto, ON, CanadaHQ recorded Sep 19, 2026	1,001-5,000	4,833 contacts →
	Exact match “Canada’s Top 100 Employers 2025 I 2024 I 2023 I 2022 BDO Canada LLP is a leading provider of professional services to clients across a variety of sectors and segments.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Eisneramper	Exact match	New York, NY, United StatesHQ recorded Sep 19, 2026	1,001-5,000	4,199 contacts →
	Exact match “EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Eide Bailly LLP	Exact match	United StatesHQ recorded Sep 19, 2026	1,001-5,000	3,643 contacts →
	Exact match “We’re Eide Bailly (I’d bay-lee), a business advisory, accounting and technology firm built with our clients in mind.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	PWC Luxembourg	Exact match	LuxembourgHQ recorded Sep 19, 2026	1,001-5,000	3,413 contacts →
	Exact match “PwC Luxembourg is the largest professional services firm in Luxembourg with over 3,600 people employed from 90 different countries.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Wipfli	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 19, 2026	1,001-5,000	3,047 contacts →
	Exact match “Always advancing.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Kpmg Ireland	Exact match	Dublin 2, IrelandHQ recorded Sep 19, 2026	1,001-5,000	2,952 contacts →
	Exact match “KPMG is a leading provider of professional services, offering a range of audit, tax and advisory services to a broad range of domestic and international clients across all sectors…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Raymond Chabot Grant Thornton	Exact match	Montréal, QC, CanadaHQ recorded Sep 19, 2026	1,001-5,000	2,539 contacts →
	Exact match “Raymond Chabot Grant Thornton is a professional services firm dedicated to the success of organizations and their leaders since 1948.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	BDO In Australia	Exact match	Bdo, IndonesiaHQ recorded Sep 19, 2026	1,001-5,000	2,528 contacts →
	Exact match “BDO is a trusted adviser to clients seeking audit, tax and advisory services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Forvis Mazars In The UK	Exact match	United StatesHQ recorded Sep 19, 2026	1,001-5,000	2,397 contacts →
	Exact match “Forvis Mazars is a leading global professional services network operating under a single brand with just two members: Forvis Mazars, LLP in the United States and Forvis Mazars…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	PWC Sweden	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	1,001-5,000	2,276 contacts →
	Exact match “På PwC hjälper vi våra kunder att bygga förtroende och ställa om sin verksamhet för att öka konkurrenskraften.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Carr, Riggs & Ingram	Exact match	Enterprise, AL, United StatesHQ recorded Sep 19, 2026	1,001-5,000	2,102 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
24	Uhy-Us	Exact match	New York, NY, United StatesHQ recorded Sep 19, 2026	1,001-5,000	2,035 contacts →
	Exact match “UHY is one of the nation’s largest professional services firms providing audit, tax, consulting and advisory services to clients primarily in the dynamic middle market.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Kpmg Philippines	Exact match	Makati City, PhilippinesHQ recorded Sep 19, 2026	1,001-5,000	1,888 contacts →
	Exact match “KPMG R.G.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “audit and assurance firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 15,794 audit and assurance firms worldwide

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Audit and assurance firms worldwide at a glance

As of Sep 19, 2026

32.0%Verified-email coverage

70.4Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Dubai

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

6,797

11-50

6,505

51-200

1,734

201-500

397

501-1,000

106

1,001-5,000

124

5,001-10,000

10001+

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 firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “audit and assurance firms” 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 355,644 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 firms by location

86 lists · largest first

Every Audit and assurance firms 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 firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many audit and assurance firms are there worldwide?

RevenueBase identified 15,794 company matches for audit and assurance firms 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?

EY 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 firms?

The United States leads with 2,082 companies, followed by India (2,075) and France (949). Every audit and assurance firms list by country and city is linked on this page.

Which city has the most audit and assurance firms?

Dubai leads with 260 company records, followed by Paris (208) and Sao Paulo (188).

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 355,644 professional contacts with verified work emails tracked across these 15,794 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.