Company lists · Data refreshed September 2026

Top 25 Tax services worldwide

RevenueBase identified 43,756 company matches for tax services worldwide as of September 2026 and tracks 333,017 professional contacts across them, including 82,238 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 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 21, 2026. Country and city lists for 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 21, 2026 How this list was built
43,756Companies
333,017Contacts tracked
82,238Verified emails
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The 25 largest tax services worldwide

Ranked by team size
Top 25 of 43,756 company matches for tax services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchThe Hague, NetherlandsHQ recorded Sep 21, 202610001+13,883 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 · Sep 21, 2026 · View company records in RevenueBase
2Exact matchCalgary, AB, CanadaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3Exact matchUnited StatesHQ recorded Sep 21, 20261,001-5,000627 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5Exact matchThornleigh, AustraliaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6Exact matchNeustadt An Der Weinstrasse, GermanyHQ recorded Sep 21, 20261,001-5,000373 contacts →

Exact match

“Deutschlands Nr.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchMumbai, IndiaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8Exact matchJakarta Selatan, IndonesiaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
9Exact matchCalgary, AB, CanadaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
10Exact matchJaipur, IndiaHQ recorded Sep 21, 2026201-500243 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 · Sep 21, 2026 · View company records in RevenueBase
11Exact matchBern, SwitzerlandHQ recorded Sep 21, 2026501-1,000230 contacts →

Exact match

“Logisch!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchBaraboo, WI, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
13Exact matchSofia, BulgariaHQ recorded Sep 21, 20265,001-10,000201 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchHamburg, GermanyHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
15Exact matchBeaufays, BelgiumHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16Exact matchNiterói, BrazilHQ recorded Sep 21, 202651-200193 contacts →

Exact match

“Excelência em consultoria.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchViña Del Mar, ChileHQ recorded Sep 21, 2026n/a186 contacts →

Exact match

“Oficina contable que se caracteriza por el profesionalismo de sus integrantes, la rápida solución a los problemas que se presenten y la atención que presta a sus clientes.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchSumaré, BrazilHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
19Exact matchShrewsbury, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
20Exact matchSainte-marie, QC, CanadaHQ recorded Sep 21, 2026201-500170 contacts →

Exact match

“Depuis maintenant plus de 60 ans, BVA a développé une panoplie de services axés sur les préoccupations des entrepreneurs, des professionnels et des dirigeants d’entreprises.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202651-200168 contacts →

Exact match

“Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchKarachi, PakistanHQ recorded Sep 21, 2026501-1,000160 contacts →

Exact match

“Consequent upon the 18th Constitutional Amendment (specifically in relation to item No.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchKuala Lumpur, MalaysiaHQ recorded Sep 21, 202651-200155 contacts →

Exact match

“ECOVIS is a leading global consulting firm with its origins in Continental Europe.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchDroitwich, United KingdomHQ recorded Sep 21, 202651-200151 contacts →

Exact match

“For 40 years, Ormerod Rutter have offered the specialist hands-on support that clients need to handle all of their tax, business and financial affairs.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchSchiphol-rijk, NetherlandsHQ recorded Sep 21, 2026201-500149 contacts →

Exact match

“JAN© weet waar je als ondernemer mee worstelt.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 43,756 tax services worldwide

See the full list, filter by size, metro and specialty, and access 82,238 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax services worldwide at a glance

As of Sep 21, 2026
24.7%Verified-email coverage
7.6Average contacts per company
1-10Median size (employees)
1.1%Largest-city concentration · Sao Paulo
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
30,824
11-50
10,576
51-200
1,463
201-500
199
501-1,000
60
1,001-5,000
43
5,001-10,000
7
10001+
14

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 are linked below.
What qualifies
Company records worldwide whose business descriptions match “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 82,238 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 21, 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 by location

174 lists · largest first

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

How many tax services are there worldwide?

RevenueBase identified 43,756 company matches for 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?

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

Which country has the most tax services?

The United States leads with 15,746 companies, followed by Germany (3,749) and Brazil (2,726). Every tax services list by country and city is linked on this page.

Which city has the most tax services?

Sao Paulo leads with 502 company records, followed by London (395) and New York (337).

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 82,238 professional contacts with verified work emails tracked across these 43,756 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 21, 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.