Company lists · Data refreshed September 2026

Top 25 Regional accounting firms worldwide

Name: Regional accounting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 37,304 companies tracked

RevenueBase identified 37,304 regional accounting firms worldwide as of September 2026 and tracks 472,284 professional contacts across them, including 170,980 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers regional accounting firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for regional accounting firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

37,304Companies

472,284Contacts tracked

170,980Verified emails

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The 25 largest regional accounting firms worldwide

Ranked by team size

Top 25 of 37,304 regional accounting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to regional accounting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	CA Firm	Partial evidence	Chennai, IndiaHQ checked Sep 29, 2026	n/a	10,260 contacts →
	Partial evidence “The core business of our firm is to provide comprehensive package of accounting, secretarial, taxation and business advisory services to Corporate Clients.” Source: RevenueBase Database · checked Sep 29, 2026
2	MNP	Partial evidence	Calgary, AB, CanadaHQ checked Sep 29, 2026	5,001-10,000	8,773 contacts →
	Partial evidence “MNP is a leading national accounting, tax and business consulting firm in Canada.” Source: RevenueBase Database · checked Sep 29, 2026
3	Grant Thornton Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	1,001-5,000	2,374 contacts →
	Indirect evidence “In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Source: RevenueBase Database · checked Sep 29, 2026
4	BDO South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	1,001-5,000	1,870 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
5	Grant Thornton Sweden	Indirect evidence	Stockholm, SwedenHQ checked Sep 29, 2026	1,001-5,000	1,724 contacts →
	Indirect evidence “Grant Thornton är ett ledande revisions- och rådgivningsföretag med över 1400 medarbetare som erbjuder tjänster inom revision, skatt, redovisning och specialistrådgivning.” Source: RevenueBase Database · checked Sep 29, 2026
6	BDO Germany	Indirect evidence	Hamburg, GermanyHQ checked Sep 29, 2026	1,001-5,000	1,576 contacts →
	Indirect evidence “BDO is the leading entrepreneurial driven provider for audit and audit-related services, tax and business law consulting as well as advisory services.” Source: RevenueBase Database · checked Sep 29, 2026
7	Beierholm	Indirect evidence	Aalborg, DenmarkHQ checked Sep 29, 2026	1,001-5,000	1,568 contacts →
	Indirect evidence “Beierholm is the preferred auditing and consulting company for small and medium-sized companies in Denmark.” Source: RevenueBase Database · checked Sep 29, 2026
8	Pitcher Partners	Partial evidence	Docklands, AustraliaHQ checked Sep 29, 2026	1,001-5,000	1,531 contacts →
	Partial evidence “Accounting and business advisory experts sharing insights about issues impacting family-controlled and privately owned businesses, high net-worth individuals, the public sector…” Source: RevenueBase Database · checked Sep 29, 2026
9	BDO Norge	Indirect evidence	Oslo, NorwayHQ checked Sep 29, 2026	1,001-5,000	1,530 contacts →
	Indirect evidence “We see great value in having a local presence and roots, factors which enable us to work closely with our clients.” Source: RevenueBase Database · checked Sep 29, 2026
10	RSM Ebner Stolz	Indirect evidence	Stuttgart, GermanyHQ checked Sep 29, 2026	1,001-5,000	1,442 contacts →
	Indirect evidence “Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Source: RevenueBase Database · checked Sep 29, 2026
11	RSM France	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	1,001-5,000	1,330 contacts →
	Indirect evidence “RSM en France, membre de RSM International, 6ème réseau international d'audit, expertise comptable et conseil, c'est 18 implantations dans les principaux pôles régionaux et près…” Source: RevenueBase Database · checked Sep 29, 2026
12	Mallette	Indirect evidence	Québec, QC, CanadaHQ checked Sep 29, 2026	1,001-5,000	1,268 contacts →
	Indirect evidence “Mallette compte plus de 40 bureaux solidement implantés dans plusieurs régions du Québec et regroupe plus de 1 600 ressources œuvrant dans différents secteurs d’activité.” Source: RevenueBase Database · checked Sep 29, 2026
13	Manubhai & Shah LLP	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	1,001-5,000	1,113 contacts →
	Indirect evidence “Manubhai & Shah LLP is a firm of Chartered Accountants based in Ahmedabad, Gujarat.” Source: RevenueBase Database · checked Sep 29, 2026
14	EXCO	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	1,001-5,000	1,005 contacts →
	Indirect evidence “Exco est un réseau d’expertise comptable et d’audit classé dans le top 10 des réseaux pluridisciplinaires en France.” Source: RevenueBase Database · checked Sep 29, 2026
15	Bernhoeft	Indirect evidence	Recife, BrazilHQ checked Sep 29, 2026	501-1,000	833 contacts →
	Indirect evidence “A Bernhoeft Contadores é uma empresa de atuação nacional que oferece terceirização de serviços contábeis para clientes de diversos portes e segmentos.” Source: RevenueBase Database · checked Sep 29, 2026
16	Orcom Cabinet D'expertise Comptable, Audit ET Conseil	Indirect evidence	Orléans, FranceHQ checked Sep 29, 2026	1,001-5,000	800 contacts →
	Indirect evidence “Pour ORCOM, le conseil est un état d'esprit.” Source: RevenueBase Database · checked Sep 29, 2026
17	Baker Tilly Canada	Partial evidence	Waterloo, ON, CanadaHQ checked Sep 29, 2026	1,001-5,000	785 contacts →
	Partial evidence “With member firms from coast to coast, the Baker Tilly Canada Cooperative is one of the country’s largest associations of chartered professional accounting firms.” Source: RevenueBase Database · checked Sep 29, 2026
18	BDO Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 29, 2026	501-1,000	600 contacts →
	Indirect evidence “BDO Luxembourg is one of the largest firms of accountants, auditors and consultants in Luxembourg.” Source: RevenueBase Database · checked Sep 29, 2026
19	Armstrong Watson	Indirect evidence	Carlisle, United KingdomHQ checked Sep 29, 2026	501-1,000	579 contacts →
	Indirect evidence “Armstrong Watson has been advising and protecting clients across the North of England and Scotland since 1867.” Source: RevenueBase Database · checked Sep 29, 2026
20	BDO Israel	Partial evidence	Tel Aviv, IsraelHQ checked Sep 29, 2026	1,001-5,000	574 contacts →
	Partial evidence “BDO Israel is a dynamic and business oriented accounting and consulting firm, ranking amongst the five leading industry firms in Israel and part of the international network BDO.” Source: RevenueBase Database · checked Sep 29, 2026
21	Mazars In The UK	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	505 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
22	Scrubbed	Partial evidence	Burlingame, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	490 contacts →
	Partial evidence “Scrubbed delivers partner-led accounting, tax, advisory, and audit services to middle-market companies that want a financial partner they can trust.” Source: RevenueBase Database · checked Sep 29, 2026
23	Pp&c Auditores Independentes	Indirect evidence	São Paulo, BrazilHQ checked Sep 29, 2026	201-500	440 contacts →
	Indirect evidence “A PP & C Auditores Independentes é uma firma de auditores e especialistas nas áreas de impostos e consultoria empresarial.” Source: RevenueBase Database · checked Sep 29, 2026
24	FCN	Indirect evidence	Bezannes, FranceHQ checked Sep 29, 2026	501-1,000	432 contacts →
	Indirect evidence “FCN est une société anonyme d'Expertise Comptable et de Commissariat aux Comptes inscrite à l'Ordre des Experts-Comptables de Champagne et à la Compagnie Régionale des…” Source: RevenueBase Database · checked Sep 29, 2026
25	Kpmg Ukraine	Indirect evidence	Kyiv, UkraineHQ checked Sep 29, 2026	501-1,000	431 contacts →
	Indirect evidence “KPMG – це міжнародна мережа фірм, що надають аудиторські, податкові та консультаційні послуги.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: regional accounting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names regional accounting firms.
Partial evidence: Its own public description names part of regional accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name regional accounting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 37,304 regional accounting firms worldwide

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Regional accounting firms worldwide at a glance

As of Sep 29, 2026

36.2%Verified-email coverage

12.7Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

22,964

11-50

11,375

51-200

2,118

201-500

341

501-1,000

1,001-5,000

112

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among regional accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for regional accounting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “regional accounting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names regional accounting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among regional accounting firms, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 170,980 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Regional accounting firms by location

174 lists · largest first

Every Regional accounting 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names regional accounting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many regional accounting firms are there worldwide?

RevenueBase identified 37,304 regional accounting firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

CA Firm, headquartered in Chennai, tops this list with the largest team on record.

Which country has the most regional accounting firms?

The United States leads with 12,440 companies, followed by Brazil (3,027) and the United Kingdom (2,001). Every regional accounting firms list by country and city is linked on this page.

Which city has the most regional accounting firms?

Sao Paulo leads with 454 headquartered companies, followed by London (360) and Paris (241).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 170,980 verified decision-maker contacts tracked across these 37,304 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.