Company lists · Data refreshed September 2026

Top 25 Audit defense firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 22,328 companies tracked

RevenueBase identified 22,328 company matches for audit defense firms worldwide as of September 2026 and tracks 172,891 professional contacts across them, including 50,026 with verified work emails. Germany is the largest market and Sao Paulo the largest hub.

This list covers company matches for audit defense 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 30, 2026. Country and city lists for audit defense 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 30, 2026 How this list was built

22,328Companies

172,891Contacts tracked

50,026Verified emails

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The 25 largest audit defense firms worldwide

Ranked by team size

Top 25 of 22,328 company matches for audit defense firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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	RYAN	Exact match	Dallas, TX, United StatesHQ recorded Sep 30, 2026	5,001-10,000	6,089 contacts →
	Exact match “Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	TAX Consultant	Exact match	Brighton, United KingdomHQ recorded Sep 30, 2026	n/a	2,042 contacts →
	Exact match “A traditional general practice, with a twist.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Grant Thornton Sweden	Exact match	Stockholm, SwedenHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
4	BDO Germany	Exact match	Hamburg, GermanyHQ recorded Sep 30, 2026	1,001-5,000	1,576 contacts →
	Exact match “BDO is the leading entrepreneurial driven provider for audit and audit-related services, tax and business law consulting as well as advisory services.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	BDO In Indonesia	Exact match	Jakarta, IndonesiaHQ recorded Sep 30, 2026	501-1,000	1,508 contacts →
	Exact match “BDO is the leading provider of professional services within the mid-tier of our profession.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	RSM Ebner Stolz	Exact match	Stuttgart, GermanyHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
7	WTS Deutschland	Exact match	Munich, GermanyHQ recorded Sep 30, 2026	1,001-5,000	882 contacts →
	Exact match “WTS ist ein globaler Full-Service Anbieter für Steuerberatungsleistungen und Financial & Deal Advisory.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	DMA	Exact match	Fort Wayne, IN, United StatesHQ recorded Sep 30, 2026	501-1,000	861 contacts →
	Exact match “Great Place to Work® Certified™ DMA, a proudly employee-owned company, has been solving corporate tax challenges for its clients since 1972.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	PWC Hungary	Exact match	Budapest, HungaryHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
10	Chevez Ruiz Zamarripa	Exact match	Mexico City, MexicoHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
11	Kpmg Avocats	Exact match	Courbevoie, FranceHQ recorded Sep 30, 2026	501-1,000	669 contacts →
	Exact match “Les entreprises de toutes tailles sont exposées à des dispositions de plus en plus complexes en matière de réglementations fiscales et juridiques sur leur territoire national et…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Flick Gocke Schaumburg	Exact match	Bonn, GermanyHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
13	BDO Austria	Exact match	Vienna, AustriaHQ recorded Sep 30, 2026	1,001-5,000	599 contacts →
	Exact match “Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	BDO Israel	Exact match	Tel Aviv, IsraelHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
15	Bennett Thrasher	Exact match	Atlanta, GA, United StatesHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
16	Lisicki Litvin & Asociados	Exact match	Buenos Aires, ArgentinaHQ recorded Sep 30, 2026	501-1,000	553 contacts →
	Exact match “Somos una firma de profesionales altamente especializados y comprometidos con las necesidades de nuestros clientes.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	K C Mehta & CO LLP	Exact match	Vadodara, IndiaHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
18	Sensiba LLP	Exact match	San Jose, CA, United StatesHQ recorded Sep 30, 2026	501-1,000	493 contacts →
	Exact match “Sensiba’s comprehensive accounting, tax, and consulting services help businesses and people solve problems, navigate complexity, and build a foundation for sustainable growth.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	MAPAH	Exact match	Goiânia, BrazilHQ recorded Sep 30, 2026	201-500	475 contacts →
	Exact match “Nosso principal Foco: RESULTADO Nosso compromisso é identificar problemas, sua origem e causa, culminando na divulgação das consequências que estes pontos podem gerar para a…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	DHPG	Exact match	Bonn, GermanyHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
21	Smith Howard	Exact match	Atlanta, GA, United StatesHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
22	Dhruva Advisors India Pvt. LTD	Exact match	Mumbai, IndiaHQ recorded Sep 30, 2026	501-1,000	408 contacts →
	Exact match “Dhruva Advisors, a Ryan LLC affiliate, delivers strategic tax and regulatory solutions to clients across India and around the world.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	CRIDO	Exact match	Warsaw, PolandHQ recorded Sep 30, 2026	201-500	407 contacts →
	Exact match “We are a leading Polish consulting firm committed to helping businesses make informed decisions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Sistem Global Danışmanlık A.Ş	Exact match	İstanbul, TürkiyeHQ recorded Sep 30, 2026	501-1,000	384 contacts →
	Exact match “Sistem Group has been founded in 1996 and has more than 170 employees in the group offices in Ankara, İstanbul, Adana, Bursa, Gaziantep and İzmir.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	BDO México	Exact match	Cuauhtémoc, MexicoHQ recorded Sep 30, 2026	501-1,000	367 contacts →
	Exact match “Somos la quinta firma de contadores públicos y consultores de negocio a nivel mundial, proporcionamos los servicios profesionales de Auditoría; Impuestos y Consultoría Fiscal…” Recorded in the RevenueBase company graph · Sep 30, 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 defense 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 22,328 audit defense firms worldwide

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Audit defense firms worldwide at a glance

As of Sep 30, 2026

28.9%Verified-email coverage

7.7Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · Sao Paulo

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

12,913

11-50

7,546

51-200

1,266

201-500

194

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 audit defense firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “audit defense 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 50,026 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 30, 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 defense firms by location

112 lists · largest first

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

How many audit defense firms are there worldwide?

RevenueBase identified 22,328 company matches for audit defense 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?

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

Which country has the most audit defense firms?

Germany leads with 3,568 companies, followed by Brazil (2,714) and the United States (2,609). Every audit defense firms list by country and city is linked on this page.

Which city has the most audit defense firms?

Sao Paulo leads with 637 company records, followed by Berlin (188) and Madrid (182).

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 50,026 professional contacts with verified work emails tracked across these 22,328 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 30, 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.