Company lists · Data refreshed September 2026

Top 25 External audit consulting firms worldwide

RevenueBase identified 9,085 external audit consulting firms worldwide as of September 2026 and tracks 187,951 professional contacts across them, including 49,525 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers external audit consulting firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for external audit consulting firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
9,085Companies
187,951Contacts tracked
49,525Verified emails
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The 25 largest external audit consulting firms worldwide

Ranked by team size
Top 25 of 9,085 external audit consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to external audit consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBerlin, GermanyHQ checked Sep 28, 202610001+8,886 contacts →

Indirect evidence

“KPMG is a network of professional firms with about employees in 146 countries and territories.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceMenlo Park, CA, United StatesHQ checked Sep 28, 20265,001-10,0008,779 contacts →

Partial evidence

“Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceParis La Défense, FranceHQ checked Sep 28, 202610001+5,839 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0004,199 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSp, BrazilHQ checked Sep 28, 20261,001-5,0001,791 contacts →

Indirect evidence

“Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceStockholm, SwedenHQ checked Sep 28, 20261,001-5,0001,724 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,0001,688 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceAalborg, DenmarkHQ checked Sep 28, 20261,001-5,0001,568 contacts →

Partial evidence

“Beierholm is the preferred auditing and consulting company for small and medium-sized companies in Denmark.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261,001-5,0001,530 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261,001-5,0001,498 contacts →

Indirect evidence

“KPMG er mest kjent som revisorer, forretningskonsulenter og advokater, men vi er også mye mer.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceStuttgart, GermanyHQ checked Sep 28, 20261,001-5,0001,442 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0001,395 contacts →

Strong evidence

“Crowe UK is a leading audit, tax, advisory and consulting firm with a national presence to complement our international reach.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidencePune, IndiaHQ checked Sep 28, 20261,001-5,0001,152 contacts →

Partial evidence

“In today's complex and challenging business world, Accounting, Auditing & Consulting Firms play a significant role in managing these complexities/challenges and in turning them…”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceZürich, SwitzerlandHQ checked Sep 28, 20261,001-5,0001,090 contacts →

Strong evidence

“BDO is one of the leading audit, accounting and consulting firms in Switzerland.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceKuala Lumpur, MalaysiaHQ checked Sep 28, 20261,001-5,0001,074 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceOrléans, FranceHQ checked Sep 28, 20261,001-5,000800 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceParis, FranceHQ checked Sep 28, 2026501-1,000765 contacts →

Indirect evidence

“Ensemble, changeons la donne.”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceDüsseldorf, GermanyHQ checked Sep 28, 20261,001-5,000745 contacts →

Strong evidence

“With employees in 146 countries, Baker Tilly provides a broad range of innovative and individual consulting services in the areas of Audit & Advisory, Tax, Legal and Consulting…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceSan Isidro, PeruHQ checked Sep 28, 2026501-1,000603 contacts →

Indirect evidence

“La red global de BDO se extiende a lo largo de 166 países y territorios, con 115,661 personas trabajando en 1,776 oficinas y todas bajo un mismo objetivo: brindar a nuestros…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceMumbai, IndiaHQ checked Sep 28, 2026501-1,000601 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceWien, AustriaHQ checked Sep 28, 20261,001-5,000599 contacts →

Indirect evidence

“Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceMelbourne, AustraliaHQ checked Sep 28, 2026501-1,000592 contacts →

Partial evidence

“Moore Australia is a network of five independent accounting, audit and advisory firms with 13 offices and 600+ staff across Australia.”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceLexington, KY, United StatesHQ checked Sep 28, 2026501-1,000590 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceTel Aviv, IsraelHQ checked Sep 28, 20261,001-5,000574 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceAtlanta, GA, United StatesHQ checked Sep 28, 2026201-500558 contacts →

Partial evidence

“Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 9,085 external audit consulting firms worldwide

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External audit consulting firms worldwide at a glance

As of Sep 28, 2026
26.3%Verified-email coverage
20.7Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Paris
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
4,468
11-50
3,453
51-200
811
201-500
196
501-1,000
37
1,001-5,000
46
5,001-10,000
16
10001+
12

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among external audit consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for external audit consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “external audit consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names external audit consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among external audit consulting firms, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 49,525 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

External audit consulting firms by location

56 lists · largest first

Every External audit consulting 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names external audit consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many external audit consulting firms are there worldwide?

RevenueBase identified 9,085 external audit consulting firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Kpmg Deutschland, headquartered in Berlin, tops this list with the largest team on record.

Which country has the most external audit consulting firms?

The United States leads with 895 companies, followed by France (704) and Brazil (636). Every external audit consulting firms list by country and city is linked on this page.

Which city has the most external audit consulting firms?

Paris leads with 171 headquartered companies, followed by Sao Paulo (166) and Dubai (142).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 49,525 verified decision-maker contacts tracked across these 9,085 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.