Company lists · Data refreshed September 2026

Top 25 Intelligence business consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 40,670 companies tracked

RevenueBase identified 40,670 intelligence business consulting firms worldwide as of September 2026 and tracks 531,834 professional contacts across them, including 157,582 with verified work emails. The United States is the largest market and London the largest hub.

This list covers intelligence business consulting 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 intelligence business consulting 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

40,670Companies

531,834Contacts tracked

157,582Verified emails

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The 25 largest intelligence business consulting firms worldwide

Ranked by team size

Top 25 of 40,670 intelligence business consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to intelligence business consulting 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	Mckinsey & Company	Partial evidence	United StatesHQ checked Sep 21, 2026	10001+	50,427 contacts →
	Partial evidence “McKinsey & Company is a global management consulting firm.” Source: RevenueBase Database · checked Sep 21, 2026
2	ZS	Partial evidence	Evanston, IL, United StatesHQ checked Sep 21, 2026	10001+	16,896 contacts →
	Partial evidence “ZS is a management consulting and technology firm that partners with companies to improve life and how we live it.” Source: RevenueBase Database · checked Sep 21, 2026
3	Guidehouse	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 21, 2026	10001+	12,815 contacts →
	Indirect evidence “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Source: RevenueBase Database · checked Sep 21, 2026
4	FTI Consulting	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	5,001-10,000	8,964 contacts →
	Partial evidence “FTI Consulting is the leading global expert firm for organizations facing crisis and transformation, with more than 8,100 employees in 32 countries and territories.” Source: RevenueBase Database · checked Sep 21, 2026
5	Protiviti	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 21, 2026	5,001-10,000	8,779 contacts →
	Partial evidence “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: RevenueBase Database · checked Sep 21, 2026
6	Accenture Strategy & Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	5,001-10,000	5,514 contacts →
	Indirect evidence “Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Source: RevenueBase Database · checked Sep 21, 2026
7	Management Solutions	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	1,001-5,000	4,468 contacts →
	Partial evidence “Management Solutions is a leading provider of business consulting services for regulated industries.” Source: RevenueBase Database · checked Sep 21, 2026
8	L.E.K. Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,093 contacts →
	Indirect evidence “L.E.K.” Source: RevenueBase Database · checked Sep 21, 2026
9	Monitor Deloitte	Indirect evidence	United StatesHQ checked Sep 21, 2026	5,001-10,000	3,116 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
10	NRI Group	Indirect evidence	Chiyoda-ku, JapanHQ checked Sep 21, 2026	10001+	2,979 contacts →
	Indirect evidence “We align our goals with our clients’ goals – a true partnership that ensures shared success.” Source: RevenueBase Database · checked Sep 21, 2026
11	SIA	Strong evidence	Paris, FranceHQ checked Sep 21, 2026	1,001-5,000	2,890 contacts →
	Strong evidence “Sia is an next-generation global consulting group in strategy, artificial intelligence and management.” Source: RevenueBase Database · checked Sep 21, 2026
12	Globaldata PLC	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	2,779 contacts →
	Indirect evidence “In a world drowning in data, we deliver clarity.” Source: RevenueBase Database · checked Sep 21, 2026
13	Arthur D. Little	Indirect evidence	Brussels, BelgiumHQ checked Sep 21, 2026	1,001-5,000	2,186 contacts →
	Indirect evidence “As people, organizations and societies embrace change at pace, its leaders must anticipate, innovate and transform ever faster.” Source: RevenueBase Database · checked Sep 21, 2026
14	Systems Planning & Analysis	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,092 contacts →
	Indirect evidence “Systems Planning & Analysis (SPA) is a leading global provider of data-driven analytical insights for critical national security programs.” Source: RevenueBase Database · checked Sep 21, 2026
15	Crisis24	Partial evidence	Annapolis, MD, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,025 contacts →
	Partial evidence “Crisis24, a GardaWorld company, is widely regarded as the leading integrated risk management, crisis response, consulting, and global protective solutions firm, serving the…” Source: RevenueBase Database · checked Sep 21, 2026
16	J.S. Held LLC	Indirect evidence	Jericho, NY, PalestineHQ checked Sep 21, 2026	1,001-5,000	1,954 contacts →
	Indirect evidence “J.S.” Source: RevenueBase Database · checked Sep 21, 2026
17	Paragon Systems INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 21, 2026	10001+	1,949 contacts →
	Indirect evidence “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Source: RevenueBase Database · checked Sep 21, 2026
18	Columbus	Indirect evidence	Copenhagen, DenmarkHQ checked Sep 21, 2026	1,001-5,000	1,948 contacts →
	Indirect evidence “Columbus is a consultancy company helping organisations drive business value by defining, executing, and evolving their entire business.” Source: RevenueBase Database · checked Sep 21, 2026
19	TENEO	Indirect evidence	New York City, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,930 contacts →
	Indirect evidence “Teneo is the global CEO advisory firm.” Source: RevenueBase Database · checked Sep 21, 2026
20	Marketsandmarkets	Indirect evidence	Pune, IndiaHQ checked Sep 21, 2026	1,001-5,000	1,862 contacts →
	Indirect evidence “Founded in 2009, MarketsandMarkets recognized uncharted business potentials within disruptive trends, forecasting a surge of $25 trillion in new B2B revenues by 2030.” Source: RevenueBase Database · checked Sep 21, 2026
21	Latentview Analytics	Partial evidence	Chennai, IndiaHQ checked Sep 21, 2026	1,001-5,000	1,655 contacts →
	Partial evidence “LatentView Analytics is an AI-driven analytics, data engineering, and consulting company that inspires and transforms businesses to excel in the digital world by harnessing the…” Source: RevenueBase Database · checked Sep 21, 2026
22	Alliantgroup	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,595 contacts →
	Partial evidence “alliant is the nation's premier consulting and management engineering firm.” Source: RevenueBase Database · checked Sep 21, 2026
23	Abylsen	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1,001-5,000	1,577 contacts →
	Indirect evidence “In a world that too often follows currents, Abylsen has been opening itself up to new directions.” Source: RevenueBase Database · checked Sep 21, 2026
24	Solita	Indirect evidence	Tampere, FinlandHQ checked Sep 21, 2026	1,001-5,000	1,495 contacts →
	Indirect evidence “We create impact that lasts by combining tech, data and human insight.” Source: RevenueBase Database · checked Sep 21, 2026
25	Charles River Associates	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,479 contacts →
	Partial evidence “Charles River Associates (CRA) is a global consulting firm specializing in litigation, regulatory, financial, and management consulting.” 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: intelligence business consulting 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 intelligence business consulting firms.
Partial evidence: Its own public description names part of intelligence business consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name intelligence business consulting 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 40,670 intelligence business consulting firms worldwide

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Intelligence business consulting firms worldwide at a glance

As of Sep 21, 2026

29.6%Verified-email coverage

13.1Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

26,998

11-50

9,909

51-200

2,603

201-500

593

501-1,000

201

1,001-5,000

187

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 intelligence business consulting 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 intelligence business consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “intelligence business consulting 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 intelligence business consulting 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 intelligence business consulting 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, 157,582 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.

Intelligence business consulting firms by location

175 lists · largest first

Every Intelligence business 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 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 intelligence business consulting 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 intelligence business consulting firms are there worldwide?

RevenueBase identified 40,670 intelligence business consulting 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?

Mckinsey & Company, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most intelligence business consulting firms?

The United States leads with 9,287 companies, followed by the United Kingdom (2,822) and Brazil (2,109). Every intelligence business consulting firms list by country and city is linked on this page.

Which city has the most intelligence business consulting firms?

London leads with 1276 headquartered companies, followed by Paris (721) and Sao Paulo (676).

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 157,582 verified decision-maker contacts tracked across these 40,670 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.