Company lists · Data refreshed September 2026

Top 25 Tax services firms worldwide

RevenueBase identified 45,806 company matches for tax services firms worldwide as of September 2026 and tracks 349,998 professional contacts across them, including 92,227 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for tax services 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 22, 2026. Country and city lists for tax services 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 22, 2026 How this list was built
45,806Companies
349,998Contacts tracked
92,227Verified emails
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The 25 largest tax services firms worldwide

Ranked by team size
Top 25 of 45,806 company matches for tax services firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchChennai, IndiaHQ recorded Sep 22, 2026n/a10,260 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 · Sep 22, 2026 · View company records in RevenueBase
2Exact matchJakarta, IndonesiaHQ recorded Sep 22, 2026501-1,0001,508 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 22, 2026 · View company records in RevenueBase
3Exact matchCalgary, AB, CanadaHQ recorded Sep 22, 20265,001-10,000889 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 22, 2026 · View company records in RevenueBase
4Exact matchUnited StatesHQ recorded Sep 22, 20261,001-5,000627 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchSan Fernando, PhilippinesHQ recorded Sep 22, 20261,001-5,000617 contacts →

Exact match

“Scrubbed is an outsourced professional services firm providing a complete suite of accounting*, finance, and tax services, as well as support services for professional…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchLuxembourgHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 22, 2026501-1,000575 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 · Sep 22, 2026 · View company records in RevenueBase
8Exact matchThornleigh, AustraliaHQ recorded Sep 22, 2026501-1,000412 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 · Sep 22, 2026 · View company records in RevenueBase
9Exact matchNeustadt An Der Weinstrasse, GermanyHQ recorded Sep 22, 20261,001-5,000373 contacts →

Exact match

“Deutschlands Nr.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchMumbai, IndiaHQ recorded Sep 22, 2026201-500274 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 · Sep 22, 2026 · View company records in RevenueBase
11Exact matchBerlin, GermanyHQ recorded Sep 22, 202610001+273 contacts →

Exact match

“Die ETL-Gruppe ist in Deutschland mit über 970 Kanzleien vertreten und darüber hinaus in mehr als 60 Ländern weltweit mit über 1.470 Standorten präsent und erwirtschaftet einen…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchBangalore, IndiaHQ recorded Sep 22, 2026201-500273 contacts →

Exact match

“Established in the year 1981, Singhvi Dev & Unni LLP, Chartered Accountants (SDU), is a professional services firm headquartered in Bengaluru, India and also operating from its…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 22, 2026201-500269 contacts →

Exact match

“TaxPrime is a Tax Consulting Firm, based in Jakarta, the Capital City of Indonesia.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchCalgary, AB, CanadaHQ recorded Sep 22, 2026201-500260 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 · Sep 22, 2026 · View company records in RevenueBase
15Exact matchRennes, FranceHQ recorded Sep 22, 2026201-500223 contacts →

Exact match

“CAPEOS accompagne la gestion et le développement d’entreprises depuis plus de 45 ans.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200203 contacts →

Exact match

“Lubbock Fine is an independent accounting, tax, audit and advisory firm in the City of London.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchBaraboo, WI, United StatesHQ recorded Sep 22, 202651-200201 contacts →

Exact match

“We are driven by more than a quality tax return, we provide effective solutions to help you, your family, and your business succeed.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchHamburg, GermanyHQ recorded Sep 22, 2026501-1,000198 contacts →

Exact match

“Die ADS Steuer.Beratung ist Ihr spezialisierter Partner für ganzheitliche Steuerberatung – exklusiv für Unternehmen.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchBeaufays, BelgiumHQ recorded Sep 22, 2026n/a198 contacts →

Exact match

“Bonjour et bienvenue sur la page entreprise de la Fiduciaire au Carré - Une équipe dynamique à votre service- Assistance efficace et conseils individualisés tant aux personnes…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchNiterói, BrazilHQ recorded Sep 22, 202651-200193 contacts →

Exact match

“Excelência em consultoria.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchKoblenz, GermanyHQ recorded Sep 22, 2026501-1,000186 contacts →

Exact match

“DORNBACH ist eine überregional tätige Unternehmensgruppe in den Bereichen Wirtschaftsprüfung, Steuerberatung, Rechtsberatung und Unternehmensberatung.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchSumaré, BrazilHQ recorded Sep 22, 2026n/a185 contacts →

Exact match

“Desde 1971 a Contec é responsavel pela assessoria contabil e tributaria de diversas empresas da região metropolitana de Campinas e demais cidades vizinhas, construindo ao longo do…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchNew Delhi, IndiaHQ recorded Sep 22, 202651-200178 contacts →

Exact match

“O.P.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchSão Paulo, BrazilHQ recorded Sep 22, 2026201-500172 contacts →

Exact match

“Tax Group is a network of independent professional firms dedicated to providing services in the tax area, which brings together a network of members with more than 200 employees.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchShrewsbury, United KingdomHQ recorded Sep 22, 2026201-500171 contacts →

Exact match

“We are a firm of dedicated Accountants, Business Advisors & Tax Specialists, fully committed to enhancing and protecting our clients’ financial position.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 45,806 tax services firms worldwide

See the full list, filter by size, metro and specialty, and access 92,227 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax services firms worldwide at a glance

As of Sep 22, 2026
26.4%Verified-email coverage
7.6Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Sao Paulo
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
31,279
11-50
11,876
51-200
1,734
201-500
241
501-1,000
65
1,001-5,000
43
5,001-10,000
10
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 tax services firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “tax services 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 92,227 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 22, 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.

Tax services firms by location

189 lists · largest first

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

How many tax services firms are there worldwide?

RevenueBase identified 45,806 company matches for tax services 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?

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

Which country has the most tax services firms?

The United States leads with 16,253 companies, followed by Germany (3,747) and Brazil (2,966). Every tax services firms list by country and city is linked on this page.

Which city has the most tax services firms?

Sao Paulo leads with 555 company records, followed by London (444) and New York (362).

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 92,227 professional contacts with verified work emails tracked across these 45,806 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 22, 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.