Company lists · Data refreshed September 2026

Top 25 Accounting advisory services worldwide

RevenueBase identified 47,921 accounting advisory services worldwide as of September 2026 and tracks 610,702 professional contacts across them, including 194,012 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers accounting advisory services 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 accounting advisory services 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
47,921Companies
610,702Contacts tracked
194,012Verified emails
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The 25 largest accounting advisory services worldwide

Ranked by team size
Top 25 of 47,921 accounting advisory services worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to accounting advisory services: 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
1Partial evidenceChicago, IL, United StatesHQ checked Sep 21, 202610001+10,534 contacts →

Partial evidence

“Baker Tilly is a leading advisory, tax and assurance firm, providing clients with a genuine coast-to-coast and global advantage in major regions of the U.S.”

Source: RevenueBase Database · checked Sep 21, 2026
2Strong evidenceChennai, IndiaHQ checked Sep 21, 2026n/a10,260 contacts →

Strong 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 21, 2026
3Indirect evidenceBerlin, GermanyHQ checked Sep 21, 202610001+8,886 contacts →

Indirect evidence

“KPMG is a network of professional firms with about employees in 146 countries and territories.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceIndependence, OH, United StatesHQ checked Sep 21, 202610001+6,369 contacts →

Partial evidence

“CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261,001-5,0004,199 contacts →

Indirect evidence

“EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…”

Source: RevenueBase Database · checked Sep 21, 2026
6Strong evidenceUnited StatesHQ checked Sep 21, 20261,001-5,0003,643 contacts →

Strong evidence

“We’re Eide Bailly (I’d bay-lee), a business advisory, accounting and technology firm built with our clients in mind.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceLuxembourgHQ checked Sep 21, 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 21, 2026
8Strong evidencePrinceton, NJ, United StatesHQ checked Sep 21, 20261,001-5,0003,326 contacts →

Strong evidence

“Withum is a forward-thinking, technology-driven advisory and accounting firm, helping clients to Be in a Position of Strength in today’s modern business landscape.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceLyon, FranceHQ checked Sep 21, 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 21, 2026
10Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 21, 20261,001-5,0003,047 contacts →

Indirect evidence

“Always advancing.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceNew York, United StatesHQ checked Sep 21, 20261,001-5,0002,996 contacts →

Indirect evidence

“Citrin Cooperman is one of the nation’s largest and fastest-growing professional services firms.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceDublin 2, IrelandHQ checked Sep 21, 20261,001-5,0002,952 contacts →

Partial 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 21, 2026
13Indirect evidenceRaleigh, NC, United StatesHQ checked Sep 21, 20261,001-5,0002,824 contacts →

Indirect evidence

“Cherry Bekaert is a top-ranked U.S.”

Source: RevenueBase Database · checked Sep 21, 2026
14Strong evidenceEnterprise, AL, United StatesHQ checked Sep 21, 20261,001-5,0002,102 contacts →

Strong evidence

“Carr, Riggs & Ingram (CRI) is a Top 25 nationally-ranked accounting and advisory firm driven by relationships to cultivate growth.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20265,001-10,0002,047 contacts →

Indirect evidence

“At Moore, our purpose is to help people thrive – our clients, our people and the communities they live and work in.”

Source: RevenueBase Database · checked Sep 21, 2026
16Strong evidenceLondon, United KingdomHQ checked Sep 21, 20261,001-5,0001,930 contacts →

Strong evidence

“As a fast growing UK accounting and advisory firm, we’ve been there, as a trusted partner, helping businesses and individuals meet challenges and seize opportunities across…”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceJohannesburg, South AfricaHQ checked Sep 21, 20261,001-5,0001,870 contacts →

Partial 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
18Indirect evidenceSp, BrazilHQ checked Sep 21, 20261,001-5,0001,791 contacts →

Indirect evidence

“Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.”

Source: RevenueBase Database · checked Sep 21, 2026
19Strong evidenceHarrison, NY, United StatesHQ checked Sep 21, 20261,001-5,0001,730 contacts →

Strong evidence

“PKF O’Connor Davies is a top-tier accounting, tax and advisory practice with a long history of serving domestic and international clients.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceStockholm, SwedenHQ checked Sep 21, 20261,001-5,0001,724 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
21Indirect evidenceSydney, AustraliaHQ checked Sep 21, 20261,001-5,0001,626 contacts →

Indirect evidence

“Your business deserves remarkable support.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceAalborg, DenmarkHQ checked Sep 21, 20261,001-5,0001,568 contacts →

Indirect evidence

“Beierholm is the preferred auditing and consulting company for small and medium-sized companies in Denmark.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceOslo, NorwayHQ checked Sep 21, 20261,001-5,0001,530 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
24Indirect evidenceJakarta, IndonesiaHQ checked Sep 21, 2026501-1,0001,508 contacts →

Indirect evidence

“BDO is the leading provider of professional services within the mid-tier of our profession.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceChicago, AL, United StatesHQ checked Sep 21, 202610001+1,458 contacts →

Indirect evidence

“HORNE is now a part of BDO USA.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 47,921 accounting advisory services worldwide

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Accounting advisory services worldwide at a glance

As of Sep 21, 2026
31.8%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
2.2%Largest-city concentration · Sao Paulo
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
28,331
11-50
15,517
51-200
2,930
201-500
557
501-1,000
136
1,001-5,000
130
5,001-10,000
21
10001+
25

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 accounting advisory services, 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 accounting advisory services are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “accounting advisory services”. 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 advisory services), 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 advisory services, 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, 194,012 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.

Accounting advisory services by location

202 lists · largest first

Every Accounting advisory 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 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 advisory services, 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 advisory services are there worldwide?

RevenueBase identified 47,921 accounting advisory services 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?

Baker Tilly US, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most accounting advisory services?

The United States leads with 6,117 companies, followed by Brazil (6,107) and India (3,952). Every accounting advisory services list by country and city is linked on this page.

Which city has the most accounting advisory services?

Sao Paulo leads with 1045 headquartered companies, followed by London (557) and Dubai (507).

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 194,012 verified decision-maker contacts tracked across these 47,921 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.