Company lists · Data refreshed November 2026

Top 25 Taxation services worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 65,169 companies tracked

RevenueBase identified 65,169 company matches for taxation services worldwide as of November 2026 and tracks 520,935 professional contacts across them, including 121,859 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for taxation 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 November 6, 2026. Country and city lists for taxation 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 Nov 6, 2026 How this list was built

65,169Companies

520,935Contacts tracked

121,859Verified emails

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The 25 largest taxation services worldwide

Ranked by team size

Top 25 of 65,169 company matches for taxation services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Belastingdienst	Exact match	The Hague, NetherlandsHQ recorded Nov 6, 2026	10001+	15,293 contacts →
	Exact match “De organisatie bestaat uit diverse onderdelen, waaronder de Belastingdienst, Douane, Toeslagen, FIOD en enkele facilitaire organisaties.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	CA Firm	Exact match	Chennai, IndiaHQ recorded Nov 6, 2026	n/a	10,802 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 · Nov 6, 2026 · View company records in RevenueBase
3	BDO Brazil	Exact match	Sp, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,994 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 · Nov 6, 2026 · View company records in RevenueBase
4	BDO In Indonesia	Exact match	Jakarta, IndonesiaHQ recorded Nov 6, 2026	501-1,000	1,729 contacts →
	Exact match “BDO is the leading provider of professional services within the mid-tier of our profession.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	AG Capital	Exact match	Florianópolis, BrazilHQ recorded Nov 6, 2026	201-500	945 contacts →
	Exact match “Uma trajetória com mais de 16 anos dedicada à inteligência tributária, à tecnologia e à sustentabilidade financeira.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	H&r Block Canada	Exact match	Calgary, AB, CanadaHQ recorded Nov 6, 2026	5,001-10,000	894 contacts →
	Exact match “We’re Canada’s leading tax preparation firm for over 60 years – delivering value to Canadians by our expertise and knowledge in handling all tax situations and by our commitment…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	WIPRO	Exact match	Valencia, SpainHQ recorded Nov 6, 2026	n/a	832 contacts →
	Exact match “En Wipro impulsamos el progreso.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Grupo Studio	Exact match	Porto Alegre, BrazilHQ recorded Nov 6, 2026	201-500	647 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 · Nov 6, 2026 · View company records in RevenueBase
9	KUMAR	Exact match	n/a	1,001-5,000	638 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	BDO Luxembourg	Exact match	Diekirch, LuxembourgHQ recorded Nov 6, 2026	501-1,000	625 contacts →
	Exact match “BDO Luxembourg is one of the largest firms of accountants, auditors and consultants in Luxembourg.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Buzzacott	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	600 contacts →
	Exact match “Buzzacott is an accountancy and advisory firm with a long-standing history of supporting individuals, businesses, and not-for-profits.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Office Togolais DES Recettes - OTR	Exact match	Lome, TogoHQ recorded Nov 6, 2026	1,001-5,000	479 contacts →
	Exact match “L’OTR a été créé par la loi du 10 décembre 2012 votée à l’unanimité des représentants du peuple.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Gestión Tributaria Territorial	Exact match	Alicante, SpainHQ recorded Nov 6, 2026	501-1,000	464 contacts →
	Exact match “grupo gtt es una empresa tecnológica especializada en la gestión de tributos.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	H&r Block Australia	Exact match	Thornleigh, AustraliaHQ recorded Nov 6, 2026	501-1,000	463 contacts →
	Exact match “As Australia’s largest preparer of personal income tax returns, with over 400 offices across Australia, expert help is never far away.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Affinia	Exact match	Colchester, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	459 contacts →
	Exact match “Accountants, Tax and Business Advisers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Ααδε - Iapr	Exact match	Athens, GreeceHQ recorded Nov 6, 2026	10001+	393 contacts →
	Exact match “Υπηρετούμε πιστά το Δημόσιο Συμφέρον και το Κοινωνικό Σύνολο.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	VLH	Exact match	Neustadt An Der Weinstrasse, GermanyHQ recorded Nov 6, 2026	1,001-5,000	389 contacts →
	Exact match “Deutschlands Nr.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Administratiekantoor Tidak B.V	Exact match	Alphen Aan Den Rijn, NetherlandsHQ recorded Nov 6, 2026	n/a	383 contacts →
	Exact match “Tidak in Alphen aan den Rijn is het administratiekantoor voor startende ondernemers, zzp'ers, mkb en particulieren.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Taxprime	Exact match	Jakarta Selatan, IndonesiaHQ recorded Nov 6, 2026	201-500	307 contacts →
	Exact match “TaxPrime is a Tax Consulting Firm, based in Jakarta, the Capital City of Indonesia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	ADEJO	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	201-500	289 contacts →
	Exact match “For 20 years, we’ve helped leading companies navigate regulatory complexity through expertise, intelligence, and execution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Transaction Square	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	201-500	278 contacts →
	Exact match “Transaction Square is a Tax, Regulatory and Business Advisory firm founded by entrepreneurial Big-4 Partners having collective advisory experience spanning over 3 decades.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	TPA Austria	Exact match	Vienna, AustriaHQ recorded Nov 6, 2026	1,001-5,000	272 contacts →
	Exact match “TPA is one of the leading tax advisory and auditing services companies in Austria as well as in Central and South Eastern Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	FBC Farm And Small Business TAX Consultants	Exact match	Calgary, ON, CanadaHQ recorded Nov 6, 2026	201-500	270 contacts →
	Exact match “For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Tax2win	Exact match	Jaipur, IndiaHQ recorded Nov 6, 2026	201-500	262 contacts →
	Exact match “Indian tax laws are a maze of deadlines, exemptions and penalties, making it difficult for the taxpayer to file their ITR.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	DDTC	Exact match	Jakarta Utara, IndonesiaHQ recorded Nov 6, 2026	51-200	261 contacts →
	Exact match “DDTC is a research, technology, and knowledge-based tax institution and a centre of several business activities units, consultation services (DDTC Consulting), a center for review…” Recorded in the RevenueBase company graph · Nov 6, 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 “taxation 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 65,169 taxation services worldwide

See the full list, filter by size, metro and specialty, and access 121,859 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Taxation services worldwide at a glance

As of Nov 6, 2026

23.4%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

43,969

11-50

16,633

51-200

2,331

201-500

383

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 taxation services are linked below.
What qualifies: Company records worldwide whose business descriptions match “taxation 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 121,859 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 November 6, 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.

Taxation services by location

286 lists · largest first

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

How many taxation services are there worldwide?

RevenueBase identified 65,169 company matches for taxation services worldwide as of November 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?

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

Which country has the most taxation services?

The United States leads with 17,351 companies, followed by Brazil (5,363) and Germany (4,581). Every taxation services list by country and city is linked on this page.

Which city has the most taxation services?

Sao Paulo leads with 978 company records, followed by London (786) and Dubai (514).

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 121,859 professional contacts with verified work emails tracked across these 65,169 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 November 6, 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.