Company lists · Data refreshed November 2026

Top 25 Tax advisory service providers worldwide

Name: Tax advisory service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 70,576 companies tracked

RevenueBase identified 70,576 company matches for tax advisory service providers worldwide as of November 2026 and tracks 742,302 professional contacts across them, including 226,369 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for tax advisory service providers 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 tax advisory service providers 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

70,576Companies

742,302Contacts tracked

226,369Verified emails

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The 25 largest tax advisory service providers worldwide

Ranked by team size

Top 25 of 70,576 company matches for tax advisory service providers 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	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
2	MNP	Exact match	Calgary, AB, CanadaHQ recorded Nov 6, 2026	5,001-10,000	9,206 contacts →
	Exact match “MNP is a leading national accounting, tax and business consulting firm in Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	BDO UK	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	7,139 contacts →
	Exact match “BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	PWC Luxembourg	Exact match	LuxembourgHQ recorded Nov 6, 2026	1,001-5,000	3,425 contacts →
	Exact match “PwC Luxembourg is the largest professional services firm in Luxembourg with over 3,600 people employed from 90 different countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Kpmg Ireland	Exact match	Dublin 2, IrelandHQ recorded Nov 6, 2026	1,001-5,000	2,988 contacts →
	Exact match “KPMG is a leading provider of professional services, offering a range of audit, tax and advisory services to a broad range of domestic and international clients across all sectors…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	BDO In Australia	Exact match	Bdo, IndonesiaHQ recorded Nov 6, 2026	1,001-5,000	2,758 contacts →
	Exact match “We help ambitious organisations move forward with confidence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Grant Thornton Ireland	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	1,001-5,000	2,584 contacts →
	Exact match “In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	PWC Sweden	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	1,001-5,000	2,312 contacts →
	Exact match “På PwC hjälper vi våra kunder att bygga förtroende och ställa om sin verksamhet för att öka konkurrenskraften.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	BDO South Africa	Exact match	Johannesburg, South AfricaHQ recorded Nov 6, 2026	1,001-5,000	1,906 contacts →
	Exact match “Audit \| Advisory \| Tax The South African member firm of BDO International - The Leader for Exceptional Client Service since 1963 BDO clients experience a distinctive level of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Kpmg Poland	Exact match	Warsaw, PolandHQ recorded Nov 6, 2026	1,001-5,000	1,741 contacts →
	Exact match “KPMG jest globalną organizacją niezależnych firm świadczących profesjonalne usługi z zakresu audytu, doradztwa podatkowego, finansowego, prawnego oraz consultingu.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	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
12	Grant Thornton Sweden	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	1,001-5,000	1,726 contacts →
	Exact match “Grant Thornton är ett ledande revisions- och rådgivningsföretag med över 1400 medarbetare som erbjuder tjänster inom revision, skatt, redovisning och specialistrådgivning.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	BDO Germany	Exact match	Hamburg, GermanyHQ recorded Nov 6, 2026	1,001-5,000	1,665 contacts →
	Exact match “BDO is the leading entrepreneurial driven provider for audit and audit-related services, tax and business law consulting as well as advisory services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	RSM Ebner Stolz	Exact match	Stuttgart, GermanyHQ recorded Nov 6, 2026	1,001-5,000	1,599 contacts →
	Exact match “Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Crowe UK	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,482 contacts →
	Exact match “Crowe UK is a leading audit, tax, advisory and consulting firm with a national presence to complement our international reach.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	ASPIA	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	1,001-5,000	1,319 contacts →
	Exact match “Aspia är Nordeuropas ledande affärspartner för företag som vill ta nästa steg.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Moore Kingston Smith	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,215 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 · Nov 6, 2026 · View company records in RevenueBase
18	Menzies LLP	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,069 contacts →
	Exact match “Menzies is a proudly independent UK business advisory and accountancy practice with national coverage and international connections.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Kpmg Czech Republic	Exact match	Prague, Czech RepublicHQ recorded Nov 6, 2026	1,001-5,000	924 contacts →
	Exact match “Poskytujeme služby v oblasti auditu, daní, poradenství a práva.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	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
21	ASA	Exact match	Delhi, IndiaHQ recorded Nov 6, 2026	1,001-5,000	775 contacts →
	Exact match “ASA is the exclusive India member firm of Baker Tilly International network – the 9th largest accounting network globally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Pkf-Francis Clark Chartered Accountants & Business Advisers	Exact match	Exeter, United KingdomHQ recorded Nov 6, 2026	501-1,000	760 contacts →
	Exact match “Any good accountancy firm can help with your finance, audit, and tax.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Deloitte Société D'avocats	Exact match	Paris La Défense, FranceHQ recorded Nov 6, 2026	501-1,000	728 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 · Nov 6, 2026 · View company records in RevenueBase
24	Moore MKW	Exact match	Zwolle, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	721 contacts →
	Exact match “Wij zijn Moore MKW.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Flick Gocke Schaumburg	Exact match	Bonn, GermanyHQ recorded Nov 6, 2026	501-1,000	687 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 · 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 “tax advisory service providers”. 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 70,576 tax advisory service providers worldwide

See the full list, filter by size, metro and specialty, and access 226,369 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax advisory service providers worldwide at a glance

As of Nov 6, 2026

30.5%Verified-email coverage

10.5Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

44,669

11-50

20,279

51-200

3,282

201-500

496

501-1,000

148

1,001-5,000

118

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 tax advisory service providers are linked below.
What qualifies: Company records worldwide whose business descriptions match “tax advisory service providers” 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 226,369 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.

Tax advisory service providers by location

328 lists · largest first

Every Tax advisory service providers 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 advisory service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax advisory service providers are there worldwide?

RevenueBase identified 70,576 company matches for tax advisory service providers 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?

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 advisory service providers?

The United States leads with 16,375 companies, followed by Brazil (6,491) and Germany (5,309). Every tax advisory service providers list by country and city is linked on this page.

Which city has the most tax advisory service providers?

Sao Paulo leads with 1229 company records, followed by London (853) and Dubai (492).

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 226,369 professional contacts with verified work emails tracked across these 70,576 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.