Company lists · Data refreshed September 2026

Top 25 Big consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 31,308 companies tracked

RevenueBase identified 31,308 company matches for big consulting firms worldwide as of September 2026 and tracks 621,565 professional contacts across them, including 191,989 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for big consulting firms 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 September 21, 2026. Country and city lists for big consulting firms 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 Sep 21, 2026 How this list was built

31,308Companies

621,565Contacts tracked

191,989Verified emails

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The 25 largest big consulting firms worldwide

Ranked by team size

Top 25 of 31,308 company matches for big consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mckinsey & Company	Exact match	United StatesHQ recorded Sep 21, 2026	10001+	50,427 contacts →
	Exact match “McKinsey & Company is a global management consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	EXL	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	10001+	40,100 contacts →
	Exact match “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Boston Consulting Group BCG	Exact match	Boston, MA, United StatesHQ recorded Sep 21, 2026	10001+	38,730 contacts →
	Exact match “Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Guidehouse	Exact match	Mclean, VA, United StatesHQ recorded Sep 21, 2026	10001+	12,815 contacts →
	Exact match “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Accenture Brasil	Exact match	São Paulo, BrazilHQ recorded Sep 21, 2026	10001+	9,830 contacts →
	Exact match “A Accenture é uma empresa líder global de serviços profissionais que ajuda grandes companhias, governos e outras organizações a construir sua essência digital, otimizar suas…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	8,779 contacts →
	Exact match “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Bearingpoint	Exact match	Amsterdam, NetherlandsHQ recorded Sep 21, 2026	5,001-10,000	8,106 contacts →
	Exact match “BearingPoint is an independent management and technology consultancy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	HURON	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	5,001-10,000	7,520 contacts →
	Exact match “Huron is a global professional services firm that collaborates with organizations to solve complex challenges and achieve ambitious goals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Kearney	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	5,001-10,000	6,978 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 · Sep 21, 2026 · View company records in RevenueBase
10	Wavestone	Exact match	100-101 Terrasse Boieldieu, FranceHQ recorded Sep 21, 2026	1,001-5,000	6,190 contacts →
	Exact match “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	PA Consulting	Exact match	London, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,950 contacts →
	Exact match “We believe in the power of ingenuity to build a positive human future.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Amaris Consulting	Exact match	Chêne-bourg, SwitzerlandHQ recorded Sep 21, 2026	5,001-10,000	4,824 contacts →
	Exact match “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Management Solutions	Exact match	Madrid, SpainHQ recorded Sep 21, 2026	1,001-5,000	4,468 contacts →
	Exact match “Management Solutions is a leading provider of business consulting services for regulated industries.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	BECA	Exact match	Auckland, New ZealandHQ recorded Sep 21, 2026	1,001-5,000	4,268 contacts →
	Exact match “Creative people together transforming the world is our vision.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	L.E.K. Consulting	Exact match	Boston, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,093 contacts →
	Exact match “L.E.K.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	DAI	Exact match	Bethesda, MD, United StatesHQ recorded Sep 21, 2026	5,001-10,000	3,741 contacts →
	Exact match “DAI is an integrated professional services and advisory firm that provides project design and delivery, management consulting, and financial services to companies, investors, and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Accenture Dach	Exact match	Kronberg Im Taunus, GermanyHQ recorded Sep 21, 2026	10001+	3,644 contacts →
	Exact match “Über Accenture: Wir sind die weltweit führenden Berater für Strategie, Management, Digitalisierung, Technologie, Outsourcing und Business Transformation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Alixpartners	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	3,583 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 · Sep 21, 2026 · View company records in RevenueBase
19	Monitor Deloitte	Exact match	United StatesHQ recorded Sep 21, 2026	5,001-10,000	3,116 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 · Sep 21, 2026 · View company records in RevenueBase
20	VEE Technologies	Exact match	Decatur, GA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	2,933 contacts →
	Exact match “Vee Technologies is a global consulting and professional services organization delivering specialized, technology-enabled solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Arthur D. Little	Exact match	Brussels, BelgiumHQ recorded Sep 21, 2026	1,001-5,000	2,186 contacts →
	Exact match “As people, organizations and societies embrace change at pace, its leaders must anticipate, innovate and transform ever faster.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Baringa	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	2,179 contacts →
	Exact match “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	GFI World	Exact match	Saint-ouen, FranceHQ recorded Sep 21, 2026	10001+	2,169 contacts →
	Exact match “Gfi became Inetum in 2020.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	J.S. Held LLC	Exact match	Jericho, NY, PalestineHQ recorded Sep 21, 2026	1,001-5,000	1,954 contacts →
	Exact match “J.S.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Gspann Technologies, INC	Exact match	Milpitas, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,878 contacts →
	Exact match “GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “big consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 31,308 big consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 191,989 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Big consulting firms worldwide at a glance

As of Sep 21, 2026

30.9%Verified-email coverage

19.9Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

19,813

11-50

7,956

51-200

2,399

201-500

588

501-1,000

186

1,001-5,000

162

5,001-10,000

10001+

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 big consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “big consulting firms” 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 191,989 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 September 21, 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.

Big consulting firms by location

139 lists · largest first

Every Big consulting 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 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 “big consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many big consulting firms are there worldwide?

RevenueBase identified 31,308 company matches for big consulting firms worldwide as of September 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?

Mckinsey & Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most big consulting firms?

The United States leads with 7,376 companies, followed by the United Kingdom (1,900) and France (1,799). Every big consulting firms list by country and city is linked on this page.

Which city has the most big consulting firms?

London leads with 695 company records, followed by Paris (578) and Sao Paulo (360).

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 191,989 professional contacts with verified work emails tracked across these 31,308 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 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 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.