Company lists · Data refreshed September 2026

Top 25 Accounting consultancies worldwide

RevenueBase identified 125,793 accounting consultancies worldwide as of September 2026 and tracks 2,080,174 professional contacts across them, including 720,259 with verified work emails and 289,084 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers accounting consultancies 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 22, 2026. Country and city lists for accounting consultancies 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 22, 2026 86% judged on-target in blind review
125,793Companies
2,080,174Contacts tracked
720,259Verified emails
289,084Mobile numbers
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The 25 largest accounting consultancies worldwide

Ranked by team size
Top 25 of 125,793 accounting consultancies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting consultancies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202610001+375,085 contacts →

Indirect evidence

“EY is building a better working world by creating new value for clients, people, society, the planet, while building trust in the capital markets.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceBerlin, SwitzerlandHQ checked Sep 22, 202610001+68,443 contacts →

Indirect evidence

“KPMG is a global organization of independent professional services firms providing Audit, Tax and Advisory services.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202610001+11,078 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceFrankfurt Am Main, GermanyHQ checked Sep 22, 202610001+10,357 contacts →

Indirect evidence

“PwC is the leading auditing and consulting company in Germany.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceSydney, AustraliaHQ checked Sep 22, 20265,001-10,0009,024 contacts →

Indirect evidence

“Welcome to KPMG.”

Source: RevenueBase Database · checked Sep 22, 2026
6Partial evidenceCalgary, AB, CanadaHQ checked Sep 22, 20265,001-10,0008,773 contacts →

Partial evidence

“MNP is a leading national accounting, tax and business consulting firm in Canada.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 22, 20265,001-10,0006,933 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceParis La Defense, FranceHQ checked Sep 22, 202610001+6,485 contacts →

Indirect evidence

“Mazars is an internationally integrated partnership, specialising in audit, accountancy, advisory, tax and legal services*.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceParis La Défense, FranceHQ checked Sep 22, 202610001+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 22, 2026
10Indirect evidenceToronto, CanadaHQ checked Sep 22, 20265,001-10,0005,573 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceSao Paulo, BrazilHQ checked Sep 22, 20261,001-5,0005,551 contacts →

Indirect evidence

“A KPMG opera como uma rede internacional de firmas-membro que oferecem serviços nas áreas de Audit, Tax e Advisory.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 22, 20265,001-10,0005,509 contacts →

Indirect evidence

“When choosing an advisor, you could accept the usual compromises.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceToronto, ON, CanadaHQ checked Sep 22, 20261,001-5,0004,833 contacts →

Indirect evidence

“Canada’s Top 100 Employers 2025 I 2024 I 2023 I 2022 BDO Canada LLP is a leading provider of professional services to clients across a variety of sectors and segments.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceSouthport, AustraliaHQ checked Sep 22, 20261,001-5,0003,912 contacts →

Indirect evidence

“Don’t wait until understaffing eats away at your productivity and client satisfaction.”

Source: RevenueBase Database · checked Sep 22, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202610001+3,630 contacts →

Indirect evidence

“RSM is a leading global network of assurance, tax and consulting firms focused on the middle-market.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceLuxembourgHQ checked Sep 22, 20261,001-5,0003,413 contacts →

Indirect evidence

“PwC Luxembourg is the largest professional services firm in Luxembourg with over 3,600 people employed from 90 different countries.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceLyon, FranceHQ checked Sep 22, 20265,001-10,0003,278 contacts →

Indirect evidence

“Crée en 1991 In Extenso est l’un des leaders de l’expertise comptable en France.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceLevallois-perret, FranceHQ checked Sep 22, 202610001+3,163 contacts →

Indirect evidence

“Forvis Mazars Group SC is an independent member of Forvis Mazars Global, a leading global professional services network.”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceIssy-les-moulineaux, FranceHQ checked Sep 22, 20261,001-5,0003,143 contacts →

Indirect evidence

“We are an international consulting firm that helps businesses leverage financial incentives to boost their growth and achieve long-lasting performance.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceDublin 2, IrelandHQ checked Sep 22, 20261,001-5,0002,952 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceMadrid, SpainHQ checked Sep 22, 20261,001-5,0002,853 contacts →

Indirect evidence

“Garrigues is an international legal and tax services firm that advises clients locally, regionally and globally from every angle of business law.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceMontréal, QC, CanadaHQ checked Sep 22, 20261,001-5,0002,539 contacts →

Indirect evidence

“Raymond Chabot Grant Thornton is a professional services firm dedicated to the success of organizations and their leaders since 1948.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceBdo, IndonesiaHQ checked Sep 22, 20261,001-5,0002,528 contacts →

Indirect evidence

“BDO is a trusted adviser to clients seeking audit, tax and advisory services.”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceDublin, IrelandHQ checked Sep 22, 20261,001-5,0002,374 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 22, 2026
25Indirect evidenceStockholm, SwedenHQ checked Sep 22, 20261,001-5,0002,276 contacts →

Indirect evidence

“På PwC hjälper vi våra kunder att bygga förtroende och ställa om sin verksamhet för att öka konkurrenskraften.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 125,793 accounting consultancies worldwide

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Accounting consultancies worldwide at a glance

As of Sep 22, 2026
34.6%Verified-email coverage
13.9%Mobile-number coverage
16.5Average contacts per company
1-10Median size (employees)
2.7%Largest-city concentration · Sao Paulo
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
84,703
11-50
32,843
51-200
5,461
201-500
894
501-1,000
327
1,001-5,000
327
5,001-10,000
69
10001+
74

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 accounting consultancies, 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
46 countries, largest first: the United States, Brazil, the United Kingdom, Australia, France, Germany, Italy, Canada, Spain, the Netherlands and 36 more. Country and city lists for accounting consultancies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “accounting consultancies”. 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 accounting consultancies), 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 accounting consultancies, 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, 720,259 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 22, 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.

Accounting consultancies by location

584 lists · largest first

Every Accounting consultancies 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 accounting consultancies, 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 accounting consultancies are there worldwide?

RevenueBase identified 125,793 accounting consultancies 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?

EY, headquartered in London, tops this list with the largest team on record.

Which country has the most accounting consultancies?

The United States leads with 31,428 companies, followed by Brazil (18,964) and the United Kingdom (12,902). Every accounting consultancies list by country and city is linked on this page.

Which city has the most accounting consultancies?

Sao Paulo leads with 3419 headquartered companies, followed by London (2866) and Paris (1325).

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 720,259 verified decision-maker contacts tracked across these 125,793 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 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 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.