Company lists · Data refreshed September 2026

Top 25 International tax consulting firms worldwide

RevenueBase identified 27,553 company matches for international tax consulting firms worldwide as of September 2026 and tracks 265,072 professional contacts across them, including 76,200 with verified work emails. Germany is the largest market and Sao Paulo the largest hub.

This list covers company matches for international tax consulting 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 28, 2026. Country and city lists for international tax consulting 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 28, 2026 How this list was built
27,553Companies
265,072Contacts tracked
76,200Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest international tax consulting firms worldwide

Ranked by team size
Top 25 of 27,553 company matches for international tax consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCalgary, AB, CanadaHQ recorded Sep 28, 20265,001-10,0008,773 contacts →

Exact match

“MNP is a leading national accounting, tax and business consulting firm in Canada.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLyon, FranceHQ recorded Sep 28, 20265,001-10,0003,278 contacts →

Exact match

“Crée en 1991 In Extenso est l’un des leaders de l’expertise comptable en France.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchDublin, IrelandHQ recorded Sep 28, 20261,001-5,0002,374 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 28, 2026 · View company records in RevenueBase
4Exact matchStockholm, SwedenHQ recorded Sep 28, 20261,001-5,0002,276 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 28, 2026 · View company records in RevenueBase
5Exact matchHamburg, GermanyHQ recorded Sep 28, 20261,001-5,0001,576 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 28, 2026 · View company records in RevenueBase
6Exact matchStuttgart, GermanyHQ recorded Sep 28, 20261,001-5,0001,442 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 28, 2026 · View company records in RevenueBase
7Exact matchAthens, GreeceHQ recorded Sep 28, 20261,001-5,0001,313 contacts →

Exact match

“Grant Thornton SA provides personalised assurance, tax and advisory services to listed entities, privately-held businesses and public sector businesses.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,0001,151 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 28, 2026 · View company records in RevenueBase
9Exact matchValencia, SpainHQ recorded Sep 28, 2026n/a1,097 contacts →

Exact match

“En Wipro impulsamos el progreso.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchPrague, Czech RepublicHQ recorded Sep 28, 20261,001-5,000858 contacts →

Exact match

“Poskytujeme služby v oblasti auditu, daní, poradenství a práva.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchDüsseldorf, GermanyHQ recorded Sep 28, 20261,001-5,000745 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchParis La Défense, FranceHQ recorded Sep 28, 2026501-1,000690 contacts →

Exact match

“Deloitte Société d'Avocats is one of the leading French law firms, specializing in international tax and legal strategies.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchBonn, GermanyHQ recorded Sep 28, 2026501-1,000651 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 28, 2026 · View company records in RevenueBase
14Exact matchUnited StatesHQ recorded Sep 28, 20261,001-5,000627 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchMéxico, MexicoHQ recorded Sep 28, 2026501-1,000614 contacts →

Exact match

“Con 25 oficinas a lo largo de todo el País, Gossler S.C está catalogada como la 5ta Firma más grande en México.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchLuxembourgHQ recorded Sep 28, 2026501-1,000600 contacts →

Exact match

“BDO Luxembourg is one of the largest firms of accountants, auditors and consultants in Luxembourg.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchTel Aviv, IsraelHQ recorded Sep 28, 20261,001-5,000574 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 28, 2026 · View company records in RevenueBase
18Exact matchWemmel, BelgiumHQ recorded Sep 28, 2026201-500559 contacts →

Exact match

“Samen ondernemen, met kennis en visie.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchAtlanta, GA, United StatesHQ recorded Sep 28, 2026201-500558 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 28, 2026 · View company records in RevenueBase
20Exact matchAmsterdam, NetherlandsHQ recorded Sep 28, 2026201-500413 contacts →

Exact match

“Our mission is to advance the dissemination and understanding of information on cross-border taxation.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchWarszawa, PolandHQ recorded Sep 28, 2026201-500407 contacts →

Exact match

“We are a leading Polish consulting firm committed to helping businesses make informed decisions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchNeustadt An Der Weinstrasse, GermanyHQ recorded Sep 28, 20261,001-5,000373 contacts →

Exact match

“Deutschlands Nr.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchMadrid, SpainHQ recorded Sep 28, 2026501-1,000345 contacts →

Exact match

“CE Consulting Empresarial es la mayor red en volumen de asesorías y líder en España: Somos más de 150 asesorías nacionales e internacionales, que ofrecen servicios de asesoría…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchMontevideo, UruguayHQ recorded Sep 28, 2026201-500337 contacts →

Exact match

“Guyer & Regules is proud to be considered as Uruguay’s first choice for international and domestic complex legal, accounting and tax work.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchMexicoHQ recorded Sep 28, 2026201-500322 contacts →

Exact match

“Bienvenidos a Kreston BSG."Knowing you" Somos una firma de consultoría multidisciplinaria que brinda soluciones integrales mediante la sinergia de un equipo de expertos en el área…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 27,553 international tax consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 76,200 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

International tax consulting firms worldwide at a glance

As of Sep 28, 2026
28.7%Verified-email coverage
9.6Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
15,909
11-50
9,067
51-200
1,707
201-500
282
501-1,000
83
1,001-5,000
67
5,001-10,000
23
10001+
13

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 international tax consulting firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “international tax consulting 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 76,200 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 28, 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.

International tax consulting firms by location

140 lists · largest first

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

How many international tax consulting firms are there worldwide?

RevenueBase identified 27,553 company matches for international tax consulting 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?

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

Which country has the most international tax consulting firms?

Germany leads with 4,925 companies, followed by the United States (2,939) and Brazil (2,600). Every international tax consulting firms list by country and city is linked on this page.

Which city has the most international tax consulting firms?

Sao Paulo leads with 620 company records, followed by Berlin (273) and London (250).

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 76,200 professional contacts with verified work emails tracked across these 27,553 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 27,553 international tax consulting firms worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.