Company lists · Data refreshed September 2026

Top 25 Verify audit firms worldwide

Name: Verify audit firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 15,864 companies tracked

RevenueBase identified 15,864 verify audit firms worldwide as of September 2026 and tracks 484,312 professional contacts across them, including 152,008 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers verify audit 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 21, 2026. Country and city lists for verify audit 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 21, 2026 86% judged on-target in blind review

15,864Companies

484,312Contacts tracked

152,008Verified emails

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The 25 largest verify audit firms worldwide

Ranked by team size

Top 25 of 15,864 verify audit firms worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to verify audit 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kpmg US	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	10001+	45,394 contacts →
	Indirect evidence “KPMG is one of the world’s leading professional services firms and the fastest growing Big Four accounting firm in the United States.” Source: RevenueBase Database · checked Sep 21, 2026
2	Kpmg India	Indirect evidence	Gurugram, IndiaHQ checked Sep 21, 2026	10001+	28,997 contacts →
	Indirect evidence “KPMG entities in India are established under the laws of India and are owned and managed (as the case may be) by established Indian professionals.” Source: RevenueBase Database · checked Sep 21, 2026
3	PWC UK	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	10001+	11,078 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
4	Baker Tilly US	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	10001+	10,534 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
5	BDO USA	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	10001+	10,078 contacts →
	Indirect evidence “At BDO, our success is measured by what we achieve together.” Source: RevenueBase Database · checked Sep 21, 2026
6	CBIZ	Indirect evidence	Independence, OH, United StatesHQ checked Sep 21, 2026	10001+	6,369 contacts →
	Indirect evidence “CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.” Source: RevenueBase Database · checked Sep 21, 2026
7	Kpmg France	Partial evidence	Paris La Défense, FranceHQ checked Sep 21, 2026	10001+	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 21, 2026
8	Eisneramper	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,199 contacts →
	Indirect 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 21, 2026
9	Eide Bailly LLP	Indirect evidence	United StatesHQ checked Sep 21, 2026	1,001-5,000	3,643 contacts →
	Indirect evidence “We’re Eide Bailly (I’d bay-lee), a business advisory, accounting and technology firm built with our clients in mind.” Source: RevenueBase Database · checked Sep 21, 2026
10	PWC Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 21, 2026	1,001-5,000	3,413 contacts →
	Indirect evidence “PwC Luxembourg is the largest professional services firm in Luxembourg with over 3,600 people employed from 90 different countries.” Source: RevenueBase Database · checked Sep 21, 2026
11	Wipfli	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,047 contacts →
	Indirect evidence “Always advancing.” Source: RevenueBase Database · checked Sep 21, 2026
12	Citrin Cooperman	Indirect evidence	New York, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,996 contacts →
	Indirect evidence “Citrin Cooperman is one of the nation’s largest and fastest-growing professional services firms.” Source: RevenueBase Database · checked Sep 21, 2026
13	BDO In Australia	Partial evidence	Bdo, IndonesiaHQ checked Sep 21, 2026	1,001-5,000	2,528 contacts →
	Partial evidence “BDO is a trusted adviser to clients seeking audit, tax and advisory services.” Source: RevenueBase Database · checked Sep 21, 2026
14	Grant Thornton Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 21, 2026	1,001-5,000	2,374 contacts →
	Indirect evidence “In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Source: RevenueBase Database · checked Sep 21, 2026
15	Carr, Riggs & Ingram	Indirect evidence	Enterprise, AL, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,102 contacts →
	Indirect evidence “Carr, Riggs & Ingram (CRI) is a Top 25 nationally-ranked accounting and advisory firm driven by relationships to cultivate growth.” Source: RevenueBase Database · checked Sep 21, 2026
16	Uhy-Us	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,035 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
17	Kpmg Philippines	Indirect evidence	Makati City, PhilippinesHQ checked Sep 21, 2026	1,001-5,000	1,888 contacts →
	Indirect evidence “KPMG R.G.” Source: RevenueBase Database · checked Sep 21, 2026
18	BDO South Africa	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	1,001-5,000	1,870 contacts →
	Partial evidence “Audit \| Advisory \| Tax The South African member firm of BDO International - The Leader for Exceptional Client Service since 1963 BDO clients experience a distinctive level of…” Source: RevenueBase Database · checked Sep 21, 2026
19	Grant Thornton Sweden	Indirect evidence	Stockholm, SwedenHQ checked Sep 21, 2026	1,001-5,000	1,724 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 21, 2026
20	Kpmg Poland	Indirect evidence	Warsaw, PolandHQ checked Sep 21, 2026	1,001-5,000	1,696 contacts →
	Indirect evidence “KPMG jest globalną organizacją niezależnych firm świadczących profesjonalne usługi z zakresu audytu, doradztwa podatkowego, finansowego, prawnego oraz consultingu.” Source: RevenueBase Database · checked Sep 21, 2026
21	Sikich	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,688 contacts →
	Indirect evidence “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Source: RevenueBase Database · checked Sep 21, 2026
22	Grant Thornton Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1,001-5,000	1,626 contacts →
	Indirect evidence “Your business deserves remarkable support.” Source: RevenueBase Database · checked Sep 21, 2026
23	BDO Norge	Indirect evidence	Oslo, NorwayHQ checked Sep 21, 2026	1,001-5,000	1,530 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 21, 2026
24	RSM Ebner Stolz	Indirect evidence	Stuttgart, GermanyHQ checked Sep 21, 2026	1,001-5,000	1,442 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 21, 2026
25	Crowe UK	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	1,395 contacts →
	Partial 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 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: verify audit firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names verify audit firms.
Partial evidence: Its own public description names part of verify audit firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name verify audit firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 15,864 verify audit firms worldwide

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Verify audit firms worldwide at a glance

As of Sep 21, 2026

31.4%Verified-email coverage

30.5Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

7,567

11-50

6,183

51-200

1,523

201-500

311

501-1,000

1,001-5,000

100

5,001-10,000

10001+

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 verify audit 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 verify audit firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “verify audit 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 verify audit 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 verify audit 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, 152,008 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 21, 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.

Verify audit firms by location

75 lists · largest first

Every Verify audit 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 verify audit 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 verify audit firms are there worldwide?

RevenueBase identified 15,864 verify audit 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 US, headquartered in New York, tops this list with the largest team on record.

Which country has the most verify audit firms?

The United States leads with 2,949 companies, followed by India (1,522) and Brazil (1,047). Every verify audit firms list by country and city is linked on this page.

Which city has the most verify audit firms?

Sao Paulo leads with 231 headquartered companies, followed by Paris (209) and Dubai (170).

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 152,008 verified decision-maker contacts tracked across these 15,864 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 21, 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.