Company lists · Data refreshed November 2026

Top 25 Business advisory services worldwide

RevenueBase identified 135,075 company matches for business advisory services worldwide as of November 2026 and tracks 1,021,559 professional contacts across them, including 271,567 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for business advisory services 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 business advisory services 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
135,075Companies
1,021,559Contacts tracked
271,567Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest business advisory services worldwide

Ranked by team size
Top 25 of 135,075 company matches for business advisory services 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, IsraelHQ recorded Nov 6, 202610001+19,017 contacts →

Exact match

“Our unique combination of transformative strategy, transactions and corporate finance delivers real-world value – solutions that work in practice, not just on paper.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, IL, United StatesHQ recorded Nov 6, 202610001+14,637 contacts →

Exact match

“Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchChennai, IndiaHQ recorded Nov 6, 2026n/a10,802 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
4Exact matchChicago, United StatesHQ recorded Nov 6, 20265,001-10,0007,451 contacts →

Exact match

“As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchChicago, IL, United StatesHQ recorded Nov 6, 20265,001-10,0007,199 contacts →

Exact match

“Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchIndependence, MO, United StatesHQ recorded Nov 6, 202610001+6,622 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0005,964 contacts →

Exact match

“Azets is an international business advisory group, with local experts in 190 locations across eight countries, backed by progressive technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,0004,730 contacts →

Exact match

“Management Solutions is a leading provider of business consulting services for regulated industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchNew York, CA, United StatesHQ recorded Nov 6, 20261,001-5,0004,410 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBoston, United StatesHQ recorded Nov 6, 20261,001-5,0004,270 contacts →

Exact match

“L.E.K.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNew York, United StatesHQ recorded Nov 6, 20261,001-5,0003,786 contacts →

Exact match

“For more than forty years, AlixPartners has helped businesses around the world respond quickly and decisively to their most critical challenges – circumstances as diverse as…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPrinceton, NJ, United StatesHQ recorded Nov 6, 20261,001-5,0003,484 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLuxembourgHQ recorded Nov 6, 20261,001-5,0003,425 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
14Exact matchLyon, FranceHQ recorded Nov 6, 20265,001-10,0003,406 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchUnited StatesHQ recorded Nov 6, 20265,001-10,0003,376 contacts →

Exact match

“To navigate the future with confidence, organizations need to make and act upon the right choices: clear, timely and inspirational choices that deliver growth in a dynamic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMilwaukee, WI, United StatesHQ recorded Nov 6, 20261,001-5,0003,201 contacts →

Exact match

“Always advancing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDublin 2, IrelandHQ recorded Nov 6, 20261,001-5,0002,988 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
18Exact matchUnited StatesHQ recorded Nov 6, 20261,001-5,0002,859 contacts →

Exact match

“Né en 2025, RYDGE Conseil est le cabinet de conseil aux Entrepreneurs leader en France.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLondon, IL, United KingdomHQ recorded Nov 6, 20261,001-5,0002,311 contacts →

Exact match

“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026n/a2,245 contacts →

Exact match

“Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchJericho, NY, PalestineHQ recorded Nov 6, 20261,001-5,0002,131 contacts →

Exact match

“J.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,0002,070 contacts →

Exact match

“Teneo is the global CEO advisory firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSp, BrazilHQ recorded Nov 6, 20261,001-5,0001,994 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026n/a1,928 contacts →

Exact match

“Nassau Street Partners is an independent capital advisory firm focused on mergers and acquisitions, capital markets advisory, and strategic financial solutions for early-stage and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPraha 4 – Chodov, Czech RepublicHQ recorded Nov 6, 20261,001-5,0001,890 contacts →

Exact match

“Česká akciová společnost Partners Financial Services, a.s, zahájila svou činnost v červnu roku 2007 a její hlavní aktivitou je poskytování nezávislého finančního poradenství.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 135,075 business advisory services worldwide

See the full list, filter by size, metro and specialty, and access 271,567 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Business advisory services worldwide at a glance

As of Nov 6, 2026
26.6%Verified-email coverage
7.6Average contacts per company
1-10Median size (employees)
2.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
97,950
11-50
29,204
51-200
4,798
201-500
1,055
501-1,000
276
1,001-5,000
218
5,001-10,000
53
10001+
84

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 business advisory services are linked below.
What qualifies
Company records worldwide whose business descriptions match “business advisory services” 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 271,567 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.

Business advisory services by location

501 lists · largest first

Every Business 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 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 “business advisory services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business advisory services are there worldwide?

RevenueBase identified 135,075 company matches for business advisory services 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?

Ey-Parthenon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most business advisory services?

The United States leads with 19,575 companies, followed by Brazil (9,973) and the United Kingdom (8,478). Every business advisory services list by country and city is linked on this page.

Which city has the most business advisory services?

London leads with 2821 company records, followed by Sao Paulo (2334) and Dubai (1576).

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 271,567 professional contacts with verified work emails tracked across these 135,075 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.

Ready to reach these companies? Verified emails and direct dials for all 135,075 business advisory services worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.