Company lists · Data refreshed September 2026

Top 25 Ca firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 41,117 companies tracked

RevenueBase identified 41,117 ca firms worldwide as of September 2026 and tracks 568,296 professional contacts across them, including 190,713 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers ca 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 21, 2026. Country and city lists for ca 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 21, 2026 86% judged on-target in blind review

41,117Companies

568,296Contacts tracked

190,713Verified emails

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The 25 largest ca firms worldwide

Ranked by team size

Top 25 of 41,117 ca firms worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to ca 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	MNP	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	5,001-10,000	8,773 contacts →
	Indirect evidence “MNP is a leading national accounting, tax and business consulting firm in Canada.” Source: RevenueBase Database · checked Sep 21, 2026
2	Kpmg France	Indirect evidence	Paris La Défense, FranceHQ checked Sep 21, 2026	10001+	5,839 contacts →
	Indirect evidence “Leader de l'audit, du conseil et de l'expertise comptable, KPMG France est membre de KPMG International, réseau de cabinets indépendants exerçant dans 155 pays.” Source: RevenueBase Database · checked Sep 21, 2026
3	BDO In Australia	Indirect evidence	Bdo, IndonesiaHQ checked Sep 21, 2026	1,001-5,000	2,528 contacts →
	Indirect evidence “BDO is a trusted adviser to clients seeking audit, tax and advisory services.” Source: RevenueBase Database · checked Sep 21, 2026
4	Grant Thornton Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 21, 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 21, 2026
5	BDO South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 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 21, 2026
6	Grant Thornton Sweden	Indirect evidence	Stockholm, SwedenHQ checked Sep 21, 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 21, 2026
7	Grant Thornton Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1,001-5,000	1,626 contacts →
	Indirect evidence “Your business deserves remarkable support.” Source: RevenueBase Database · checked Sep 21, 2026
8	BDO Norge	Indirect evidence	Oslo, NorwayHQ checked Sep 21, 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 21, 2026
9	RSM Ebner Stolz	Indirect evidence	Stuttgart, GermanyHQ checked Sep 21, 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 21, 2026
10	Crowe UK	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	1,395 contacts →
	Indirect evidence “Crowe UK is a leading audit, tax, advisory and consulting firm with a national presence to complement our international reach.” Source: RevenueBase Database · checked Sep 21, 2026
11	RSM France	Indirect evidence	Paris, FranceHQ checked Sep 21, 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 21, 2026
12	Manubhai & Shah LLP	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 21, 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 21, 2026
13	BDO Switzerland	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 21, 2026	1,001-5,000	1,090 contacts →
	Indirect evidence “BDO is one of the leading audit, accounting and consulting firms in Switzerland.” Source: RevenueBase Database · checked Sep 21, 2026
14	PKF Sridhar & Santhanam LLP	Indirect evidence	Chennai, IndiaHQ checked Sep 21, 2026	501-1,000	916 contacts →
	Indirect evidence “Established in 1978, PKF Sridhar & Santhanam LLP firm of Chartered Accountants, carry the legacy of vast experience and varied exposure in the industry.” Source: RevenueBase Database · checked Sep 21, 2026
15	Bernhoeft	Indirect evidence	Recife, BrazilHQ checked Sep 21, 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 21, 2026
16	Orcom Cabinet D'expertise Comptable, Audit ET Conseil	Indirect evidence	Orléans, FranceHQ checked Sep 21, 2026	1,001-5,000	800 contacts →
	Indirect evidence “Pour ORCOM, le conseil est un état d'esprit.” Source: RevenueBase Database · checked Sep 21, 2026
17	Kpmg Kazakhstan	Indirect evidence	Алматы, KazakhstanHQ checked Sep 21, 2026	501-1,000	785 contacts →
	Indirect evidence “KPMG Kazakhstan is part of KPMG Caucasus and Central Asia and also part of a global network of professional firms providing Audit, Tax and Advisory services.” Source: RevenueBase Database · checked Sep 21, 2026
18	Pkf-Francis Clark Chartered Accountants & Business Advisers	Indirect evidence	Exeter, United KingdomHQ checked Sep 21, 2026	501-1,000	700 contacts →
	Indirect evidence “Any good accountancy firm can help with your finance, audit, and tax.” Source: RevenueBase Database · checked Sep 21, 2026
19	BDO Luxembourg	Indirect evidence	LuxembourgHQ checked Sep 21, 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 21, 2026
20	BDO EN Colombia	Indirect evidence	Bogotá, ColombiaHQ checked Sep 21, 2026	501-1,000	580 contacts →
	Indirect evidence “BDO en Colombia se consolida en 1988 como miembro de la red internacional de contadores BDO.” Source: RevenueBase Database · checked Sep 21, 2026
21	BDO Israel	Indirect evidence	Tel Aviv, IsraelHQ checked Sep 21, 2026	1,001-5,000	574 contacts →
	Indirect 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 21, 2026
22	Bennett Thrasher	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	201-500	558 contacts →
	Indirect evidence “Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.” Source: RevenueBase Database · checked Sep 21, 2026
23	BDO Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 21, 2026	201-500	521 contacts →
	Indirect evidence “BDO Ireland LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…” Source: RevenueBase Database · checked Sep 21, 2026
24	Baker Tilly Malaysia	Indirect evidence	Kuala Lumpur, MalaysiaHQ checked Sep 21, 2026	501-1,000	521 contacts →
	Indirect evidence “Established in 1978, Baker Tilly is ranked the 6th largest accounting and business advisory firm in Malaysia, with 80 Partners and Directors, 14 offices across Malaysia and an…” Source: RevenueBase Database · checked Sep 21, 2026
25	BDO Sverige	Indirect evidence	Stockholm, SwedenHQ checked Sep 21, 2026	501-1,000	505 contacts →
	Indirect evidence “BDO – en global byrå med nöjdast kunder i revisionsbranschen BDO är en revisions- och rådgivningsbyrå som finns med dig hela vägen.” Source: RevenueBase Database · checked Sep 21, 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: ca 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 ca firms.
Partial evidence: Its own public description names part of ca firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ca 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 41,117 ca firms worldwide

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Ca firms worldwide at a glance

As of Sep 21, 2026

33.6%Verified-email coverage

13.8Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

24,583

11-50

13,071

51-200

2,468

201-500

420

501-1,000

102

1,001-5,000

110

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 ca 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 ca firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “ca 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 ca 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 ca 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, 190,713 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 21, 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.

Ca firms by location

191 lists · largest first

Every Ca firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Ca firms based in the United States14,548
Ca firms based in Brazil2,971
Ca firms based in Canada1,827
Ca firms based in India1,698
Ca firms based in France1,648
Ca firms based in the United Kingdom1,446
Ca firms based in Germany1,216
Ca firms based in Australia959
Ca firms based in Italy854
Ca firms based in South Africa556
Ca firms based in Mexico443
Ca firms based in the Netherlands409
Ca firms based in the United Arab Emirates399
Ca firms based in Sweden347
Ca firms based in Spain337
Ca firms based in Argentina308
Ca firms based in Belgium301
Ca firms based in Türkiye294
Ca firms based in Portugal229
Ca firms based in Colombia214
Ca firms based in Pakistan212
Ca firms based in Indonesia202
Ca firms based in Greece177
Ca firms based in Austria169
Ca firms based in Switzerland165
Ca firms based in Peru162
Ca firms based in Denmark159
Ca firms based in Norway157
Ca firms based in Poland152
Ca firms based in Ireland151
Ca firms based in Egypt143
Ca firms based in Cyprus138
Ca firms based in Chile137
Ca firms based in the Philippines134
Ca firms based in Morocco128
Ca firms based in Kenya123
Ca firms based in Nigeria122
Ca firms based in Malaysia106
Ca firms based in Israel102
Ca firms based in New Zealand97
Ca firms based in Ecuador94
Ca firms based in Romania88
Ca firms based in Saudi Arabia78
Ca firms based in Puerto Rico75
Ca firms based in Hong Kong54
Ca firms based in Bulgaria49
Ca firms based in Tanzania49
Ca firms based in Uruguay49
Ca firms based in Costa Rica48
Ca firms based in the Dominican Republic46
Ca firms based in Croatia45
Ca firms based in Finland45
Ca firms based in Serbia45
Ca firms based in Hungary44
Ca firms based in Panama38
Ca firms based in Georgia35
Ca firms based in Luxembourg34
Ca firms based in Malta34
Ca firms based in Slovakia34
Ca firms based in Oman30
Ca firms based in Qatar29

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 ca 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 ca firms are there worldwide?

RevenueBase identified 41,117 ca 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?

MNP, headquartered in Calgary, tops this list with the largest team on record.

Which country has the most ca firms?

The United States leads with 14,548 companies, followed by Brazil (2,971) and Canada (1,827). Every ca firms list by country and city is linked on this page.

Which city has the most ca firms?

Sao Paulo leads with 490 headquartered companies, followed by New York (323) and London (295).

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 190,713 verified decision-maker contacts tracked across these 41,117 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 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 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.