Company lists · Data refreshed September 2026

Top 25 Tax audit firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 25,436 companies tracked

RevenueBase identified 25,436 company matches for tax audit firms worldwide as of September 2026 and tracks 275,945 professional contacts across them, including 66,018 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for tax audit 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 22, 2026. Country and city lists for tax audit 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 22, 2026 How this list was built

25,436Companies

275,945Contacts tracked

66,018Verified emails

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The 25 largest tax audit firms worldwide

Ranked by team size

Top 25 of 25,436 company matches for tax audit firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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	H&r Block	Exact match	Kansas City, MO, United StatesHQ recorded Sep 22, 2026	10001+	59,451 contacts →
	Exact match “H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2	CA Firm	Exact match	Chennai, IndiaHQ recorded Sep 22, 2026	n/a	10,260 contacts →
	Exact match “The core business of our firm is to provide comprehensive package of accounting, secretarial, taxation and business advisory services to Corporate Clients.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3	Eide Bailly LLP	Exact match	United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
4	Grant Thornton Ireland	Exact match	Dublin, IrelandHQ recorded Sep 22, 2026	1,001-5,000	2,374 contacts →
	Exact match “In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5	TAX Consultant	Exact match	Brighton, United KingdomHQ recorded Sep 22, 2026	n/a	2,042 contacts →
	Exact match “A traditional general practice, with a twist.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6	BDO Brazil	Exact match	Sp, BrazilHQ recorded Sep 22, 2026	1,001-5,000	1,791 contacts →
	Exact match “Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7	Grant Thornton Sweden	Exact match	Stockholm, SwedenHQ recorded Sep 22, 2026	1,001-5,000	1,724 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 22, 2026 · View company records in RevenueBase
8	RSM Ebner Stolz	Exact match	Stuttgart, GermanyHQ recorded Sep 22, 2026	1,001-5,000	1,442 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 22, 2026 · View company records in RevenueBase
9	Moore Kingston Smith	Exact match	London, United KingdomHQ recorded Sep 22, 2026	501-1,000	1,151 contacts →
	Exact match “At Moore Kingston Smith, we believe in the potential of people to make a positive impact, fuelled by the power of genuine understanding.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10	KSM Katz, Sapper & Miller	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 22, 2026	501-1,000	788 contacts →
	Exact match “KSM (Katz, Sapper & Miller) is a nationally recognized advisory, tax, and audit firm.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11	PKF Hadiwinata	Exact match	Jakarta Pusat, IndonesiaHQ recorded Sep 22, 2026	501-1,000	787 contacts →
	Exact match “PKF Hadiwinata is a top 10 accounting & professional services firm in Indonesia, headquartered in the heart of the financial district of Jakarta, and is a member of PKF…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12	PWC Hungary	Exact match	Budapest, HungaryHQ recorded Sep 22, 2026	501-1,000	749 contacts →
	Exact match “A PwC Magyarország közel három évtizede nyújt ügyfeleinek nemzetközi színvonalú szolgáltatást könyvvizsgálat, adótanácsadás és üzleti tanácsadás területeken.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13	Blick Rothenberg	Exact match	Covent Garden, United KingdomHQ recorded Sep 22, 2026	501-1,000	701 contacts →
	Exact match “Blick Rothenberg is a leading tax, accounting and business advisory firm founded on personal integrity and technical expertise.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14	Chevez Ruiz Zamarripa	Exact match	Ciudad De Mexico, MexicoHQ recorded Sep 22, 2026	501-1,000	683 contacts →
	Exact match “Chevez Ruiz Zamarripa, es una firma especializada en la Asesoría y Consultoría Fiscal de alto nivel, que se distingue por prestar servicios personalizados con total…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15	Flick Gocke Schaumburg	Exact match	Bonn, GermanyHQ recorded Sep 22, 2026	501-1,000	651 contacts →
	Exact match “Flick Gocke Schaumburg is an independent partnership of lawyers, tax advisors and auditors working with more than 320 professionals from offices in Berlin, Bonn, Düsseldorf…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16	BDO Austria	Exact match	Wien, AustriaHQ recorded Sep 22, 2026	1,001-5,000	599 contacts →
	Exact match “Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17	BDO Israel	Exact match	Tel Aviv, IsraelHQ recorded Sep 22, 2026	1,001-5,000	574 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 22, 2026 · View company records in RevenueBase
18	Bennett Thrasher	Exact match	Atlanta, GA, United StatesHQ recorded Sep 22, 2026	201-500	558 contacts →
	Exact match “Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19	Grupo Studio	Exact match	Porto Alegre, BrazilHQ recorded Sep 22, 2026	201-500	538 contacts →
	Exact match “A Studio Fiscal é uma rede de franquia especializada na prestação de serviços de auditoria fiscal e planejamento tributário.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20	K C Mehta & CO LLP	Exact match	Vadodara, IndiaHQ recorded Sep 22, 2026	201-500	504 contacts →
	Exact match “K C Mehta & Co LLP (KCM) is a team of passionate professionals.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21	DHPG	Exact match	Bonn, GermanyHQ recorded Sep 22, 2026	1,001-5,000	460 contacts →
	Exact match “As an interdisciplinary medium-sized tax audit, accountancy and legal advice service we guarantee all-round high-quality consultation combined with a personal component.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22	Pp&c Auditores Independentes	Exact match	São Paulo, BrazilHQ recorded Sep 22, 2026	201-500	440 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 22, 2026 · View company records in RevenueBase
23	Smith Howard	Exact match	Atlanta, GA, United StatesHQ recorded Sep 22, 2026	501-1,000	413 contacts →
	Exact match “Smith + Howard is a tax, accounting, advisory, and consulting firm headquartered in Atlanta, with a global presence.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24	Apercen Partners LLC	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 22, 2026	201-500	399 contacts →
	Exact match “Originating from the English and Latin roots of “apercu,” an act of insight, and “census,” an applied study of wealth and property, Apercen is a tax consulting firm offering high…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25	N. A. Shah Associates LLP	Exact match	Mumbai, IndiaHQ recorded Sep 22, 2026	51-200	375 contacts →
	Exact match “N.” Recorded in the RevenueBase company graph · Sep 22, 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 “tax audit 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 25,436 tax audit firms worldwide

See the full list, filter by size, metro and specialty, and access 66,018 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax audit firms worldwide at a glance

As of Sep 22, 2026

23.9%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

14,786

11-50

8,507

51-200

1,482

201-500

233

501-1,000

1,001-5,000

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 tax audit firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “tax audit 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 66,018 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 22, 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.

Tax audit firms by location

96 lists · largest first

Every Tax 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 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 “tax audit firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax audit firms are there worldwide?

RevenueBase identified 25,436 company matches for tax audit 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?

H&r Block tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most tax audit firms?

The United States leads with 6,039 companies, followed by Germany (2,987) and India (2,138). Every tax audit firms list by country and city is linked on this page.

Which city has the most tax audit firms?

Sao Paulo leads with 324 company records, followed by Dubai (306) and New Delhi (200).

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 66,018 professional contacts with verified work emails tracked across these 25,436 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 22, 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.