Company lists · Data refreshed September 2026

Top 25 Corporate tax firms worldwide

Name: Corporate tax firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 31,448 companies tracked

RevenueBase identified 31,448 company matches for corporate tax firms worldwide as of September 2026 and tracks 266,178 professional contacts across them, including 67,525 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for corporate tax 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 19, 2026. Country and city lists for corporate tax 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 19, 2026 How this list was built

31,448Companies

266,178Contacts tracked

67,525Verified emails

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The 25 largest corporate tax firms worldwide

Ranked by team size

Top 25 of 31,448 company matches for corporate tax firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 19, 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 19, 2026 · View company records in RevenueBase
2	RYAN	Exact match	Dallas, TX, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
3	Garrigues	Exact match	Madrid, SpainHQ recorded Sep 19, 2026	1,001-5,000	2,853 contacts →
	Exact match “Garrigues is an international legal and tax services firm that advises clients locally, regionally and globally from every angle of business law.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	TAX Consultant	Exact match	Brighton, United KingdomHQ recorded Sep 19, 2026	n/a	2,042 contacts →
	Exact match “A traditional general practice, with a twist.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	AAB	Exact match	Uk And Ireland, United KingdomHQ recorded Sep 19, 2026	1,001-5,000	1,125 contacts →
	Exact match “We provide services that help businesses at every stage of the lifecycle.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	The Bonadio Group	Exact match	Pittsford, NY, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,083 contacts →
	Exact match “Founded in 1978 and led by active and engaged problem solvers, The Bonadio Group (TBG) brings a unique passion and approach to our work.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	H&r Block Canada	Exact match	Calgary, AB, CanadaHQ recorded Sep 19, 2026	5,001-10,000	889 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 · Sep 19, 2026 · View company records in RevenueBase
8	WTS Deutschland	Exact match	München, GermanyHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
9	DMA	Exact match	Fort Wayne, IN, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
10	Bonellierede	Exact match	Milan, ItalyHQ recorded Sep 19, 2026	501-1,000	819 contacts →
	Exact match “BonelliErede è leader in Italia nei servizi legali e fiscali, attivo in tutti i settori del diritto commerciale e nel diritto penale d'impresa.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Deloitte Société D'avocats	Exact match	Paris La Défense, FranceHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
12	Chevez Ruiz Zamarripa	Exact match	Ciudad De Mexico, MexicoHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
13	Kpmg Avocats	Exact match	Courbevoie, FranceHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
14	Flick Gocke Schaumburg	Exact match	Bonn, GermanyHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
15	KUMAR	Exact match	United StatesHQ recorded Sep 19, 2026	1,001-5,000	627 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Grupo Planning	Exact match	Goiânia, BrazilHQ recorded Sep 19, 2026	1,001-5,000	569 contacts →
	Exact match “A Planning oferece soluções contábeis, tributárias, trabalhistas e financeiras para empresas que buscam mais eficiência, segurança e inteligência na gestão dos seus negócios.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Grupo Studio	Exact match	Porto Alegre, BrazilHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
18	Sensiba LLP	Exact match	San Jose, CA, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
19	Smith Howard	Exact match	Atlanta, GA, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
20	Dhruva Advisors India Pvt. LTD	Exact match	Mumbai, IndiaHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
21	Apercen Partners LLC	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
22	Gravita	Exact match	London, United KingdomHQ recorded Sep 19, 2026	201-500	379 contacts →
	Exact match “Welcome to the new era of accountancy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Cohesive	Exact match	Exton, PA, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
24	Advantage ONE TAX Consulting	Exact match	Sterling, VA, United StatesHQ recorded Sep 19, 2026	201-500	347 contacts →
	Exact match “Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Guyer & Regules	Exact match	Montevideo, UruguayHQ recorded Sep 19, 2026	201-500	337 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 19, 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 “corporate tax 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 31,448 corporate tax firms worldwide

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Corporate tax firms worldwide at a glance

As of Sep 19, 2026

25.4%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

20,452

11-50

8,991

51-200

1,355

201-500

162

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 corporate tax firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “corporate tax 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 67,525 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 19, 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.

Corporate tax firms by location

132 lists · largest first

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

How many corporate tax firms are there worldwide?

RevenueBase identified 31,448 company matches for corporate tax 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 corporate tax firms?

The United States leads with 9,114 companies, followed by Germany (3,677) and Brazil (2,795). Every corporate tax firms list by country and city is linked on this page.

Which city has the most corporate tax firms?

Sao Paulo leads with 613 company records, followed by London (274) and New York (243).

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 67,525 professional contacts with verified work emails tracked across these 31,448 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 19, 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.