Company lists · Data refreshed September 2026

Top 25 International tax services worldwide

Name: International tax services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 14,391 companies tracked

RevenueBase identified 14,391 company matches for international tax services worldwide as of September 2026 and tracks 126,686 professional contacts across them, including 40,063 with verified work emails. Germany is the largest market and Sao Paulo the largest hub.

This list covers company matches for international tax services 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 20, 2026. Country and city lists for international tax services 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 20, 2026 How this list was built

14,391Companies

126,686Contacts tracked

40,063Verified emails

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The 25 largest international tax services worldwide

Ranked by team size

Top 25 of 14,391 company matches for international tax services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 20, 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 20, 2026 · View company records in RevenueBase
2	Vialto	Exact match	London, United KingdomHQ recorded Sep 20, 2026	5,001-10,000	5,587 contacts →
	Exact match “Vialto is focused on transforming the global mobility ecosystem to support multinational organizations and their employees.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Leyton	Exact match	Issy-les-moulineaux, FranceHQ recorded Sep 20, 2026	1,001-5,000	3,143 contacts →
	Exact match “We are an international consulting firm that helps businesses leverage financial incentives to boost their growth and achieve long-lasting performance.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	TAX Consultant	Exact match	Brighton, United KingdomHQ recorded Sep 20, 2026	n/a	2,042 contacts →
	Exact match “A traditional general practice, with a twist.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	PKF O'connor Davies	Exact match	Harrison, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	1,730 contacts →
	Exact match “PKF O’Connor Davies is a top-tier accounting, tax and advisory practice with a long history of serving domestic and international clients.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Moore Kingston Smith	Exact match	London, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
7	WTS Deutschland	Exact match	München, GermanyHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
8	DMA	Exact match	Fort Wayne, IN, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
9	PWC Hungary	Exact match	Budapest, HungaryHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
10	Deloitte Société D'avocats	Exact match	Paris La Défense, FranceHQ recorded Sep 20, 2026	501-1,000	690 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 20, 2026 · View company records in RevenueBase
11	Chevez Ruiz Zamarripa	Exact match	Ciudad De Mexico, MexicoHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
12	Kpmg Avocats	Exact match	Courbevoie, FranceHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
13	Kpmg Global Services Hungary	Exact match	Budapest, HungaryHQ recorded Sep 20, 2026	501-1,000	562 contacts →
	Exact match “KPMG Global Services Hungary (KGSH) provides centralised tax compliance services to multinational companies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Lisicki Litvin & Asociados	Exact match	Ciudad Autónoma De Buenos Aires, ArgentinaHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
15	Knav India	Exact match	Mumbai, IndiaHQ recorded Sep 20, 2026	51-200	510 contacts →
	Exact match “KNAV is a dynamic global accounting and consulting firm, offering a comprehensive range of services including accounting, assurance, taxation, international transfer pricing…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	K C Mehta & CO LLP	Exact match	Vadodara, IndiaHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
17	Sensiba LLP	Exact match	San Jose, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
18	AKM Global	Exact match	Gurgaon, IndiaHQ recorded Sep 20, 2026	501-1,000	424 contacts →
	Exact match “AKM Global is a premier professional services firm, with specialization in tax, consulting and outsourcing services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Smith Howard	Exact match	Atlanta, GA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
20	IBFD	Exact match	Amsterdam, NetherlandsHQ recorded Sep 20, 2026	201-500	413 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 20, 2026 · View company records in RevenueBase
21	Dhruva Advisors India Pvt. LTD	Exact match	Mumbai, IndiaHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
22	CRIDO	Exact match	Warszawa, PolandHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
23	Apercen Partners LLC	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
24	VLH	Exact match	Neustadt An Der Weinstrasse, GermanyHQ recorded Sep 20, 2026	1,001-5,000	373 contacts →
	Exact match “Deutschlands Nr.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Cohesive	Exact match	Exton, PA, United StatesHQ recorded Sep 20, 2026	501-1,000	364 contacts →
	Exact match “Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Recorded in the RevenueBase company graph · Sep 20, 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 “international tax services”. 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 14,391 international tax services worldwide

See the full list, filter by size, metro and specialty, and access 40,063 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax services worldwide at a glance

As of Sep 20, 2026

31.6%Verified-email coverage

8.8Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

8,421

11-50

4,601

51-200

866

201-500

160

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 international tax services are linked below.
What qualifies: Company records worldwide whose business descriptions match “international tax services” 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 40,063 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 20, 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 services by location

62 lists · largest first

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

How many international tax services are there worldwide?

RevenueBase identified 14,391 company matches for international tax services 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 international tax services?

Germany leads with 3,129 companies, followed by the United States (1,893) and Brazil (930). Every international tax services list by country and city is linked on this page.

Which city has the most international tax services?

Sao Paulo leads with 233 company records, followed by Berlin (186) and London (168).

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 40,063 professional contacts with verified work emails tracked across these 14,391 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 20, 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.