Company lists · Data refreshed September 2026

Top 25 Change consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 74,586 companies tracked

RevenueBase identified 74,586 change consulting firms worldwide as of September 2026 and tracks 590,009 professional contacts across them, including 195,630 with verified work emails and 99,090 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers change 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 23, 2026. Country and city lists for change 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 23, 2026 86% judged on-target in blind review

74,586Companies

590,009Contacts tracked

195,630Verified emails

99,090Mobile numbers

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The 25 largest change consulting firms worldwide

Ranked by team size

Top 25 of 74,586 change consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to change 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	EXL	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	10001+	40,100 contacts →
	Indirect evidence “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Source: RevenueBase Database · checked Sep 23, 2026
2	Boston Consulting Group BCG	Partial evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	10001+	38,730 contacts →
	Partial evidence “Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.” Source: RevenueBase Database · checked Sep 23, 2026
3	Korn Ferry	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	10001+	13,486 contacts →
	Partial evidence “Korn Ferry is a global consulting firm that powers performance.” Source: RevenueBase Database · checked Sep 23, 2026
4	Alvarez & Marsal	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	10001+	13,099 contacts →
	Indirect evidence “Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…” Source: RevenueBase Database · checked Sep 23, 2026
5	Protiviti	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 23, 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 23, 2026
6	Oliver Wyman	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	5,001-10,000	8,230 contacts →
	Indirect evidence “At Oliver Wyman, a Marsh business, we bring deep industry insight, bold innovation, and a collaborative approach that cuts through complexity to help organizations navigate their…” Source: RevenueBase Database · checked Sep 23, 2026
7	Yash Technologies	Partial evidence	East Moline, IL, United StatesHQ checked Sep 23, 2026	5,001-10,000	7,769 contacts →
	Partial evidence “YASH Technologies is a consulting-led transformation partner with a proven track record of helping customers address their current and prospective digital transformation…” Source: RevenueBase Database · checked Sep 23, 2026
8	Deloitte Digital	Indirect evidence	Usa, FranceHQ checked Sep 23, 2026	10001+	7,716 contacts →
	Indirect evidence “At Deloitte Digital, we connect brands with the right strategies and tools to create great impact.” Source: RevenueBase Database · checked Sep 23, 2026
9	HURON	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	5,001-10,000	7,520 contacts →
	Indirect evidence “Huron is a global professional services firm that collaborates with organizations to solve complex challenges and achieve ambitious goals.” Source: RevenueBase Database · checked Sep 23, 2026
10	Kearney	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	5,001-10,000	6,978 contacts →
	Partial evidence “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: RevenueBase Database · checked Sep 23, 2026
11	Wavestone	Partial evidence	100-101 Terrasse Boieldieu, FranceHQ checked Sep 23, 2026	1,001-5,000	6,190 contacts →
	Partial evidence “Wavestone is a leading consulting firm operating at the intersection of business and technology.” Source: RevenueBase Database · checked Sep 23, 2026
12	Accenture Strategy & Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
13	Strategy	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	5,082 contacts →
	Indirect evidence “From strategy to execution.” Source: RevenueBase Database · checked Sep 23, 2026
14	Roland Berger	Indirect evidence	Munich, GermanyHQ checked Sep 23, 2026	1,001-5,000	4,632 contacts →
	Indirect evidence “Roland Berger is the only leading global strategy consultancy of European origin.” Source: RevenueBase Database · checked Sep 23, 2026
15	Management Solutions	Partial evidence	Madrid, SpainHQ checked Sep 23, 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 23, 2026
16	SX Negócios	Indirect evidence	Novo Hamburgo, BrazilHQ checked Sep 23, 2026	5,001-10,000	4,020 contacts →
	Indirect evidence “Somos a Pulse Client Experts, uma empresa em constante evolução, impulsionados pela vontade de fazer acontecer.” Source: RevenueBase Database · checked Sep 23, 2026
17	Accenture Dach	Indirect evidence	Kronberg Im Taunus, GermanyHQ checked Sep 23, 2026	10001+	3,644 contacts →
	Indirect evidence “Über Accenture: Wir sind die weltweit führenden Berater für Strategie, Management, Digitalisierung, Technologie, Outsourcing und Business Transformation.” Source: RevenueBase Database · checked Sep 23, 2026
18	Alixpartners	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,583 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 23, 2026
19	Frost & Sullivan	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,330 contacts →
	Indirect evidence “For over six decades, Frost & Sullivan has helped the world’s top companies toward transformational growth journeys that result in a stream of innovative growth opportunities.” Source: RevenueBase Database · checked Sep 23, 2026
20	Arthur D. Little	Partial evidence	Brussels, BelgiumHQ checked Sep 23, 2026	1,001-5,000	2,186 contacts →
	Partial evidence “As people, organizations and societies embrace change at pace, its leaders must anticipate, innovate and transform ever faster.” Source: RevenueBase Database · checked Sep 23, 2026
21	Baringa	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	2,179 contacts →
	Strong evidence “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Source: RevenueBase Database · checked Sep 23, 2026
22	BBA Consultants	Indirect evidence	Mont-saint-hilaire, QC, CanadaHQ checked Sep 23, 2026	1,001-5,000	1,863 contacts →
	Indirect evidence “We help companies with their challenges and transformation by relying on our sharp business acumen, extensive practical experience and vast technological curiosity.” Source: RevenueBase Database · checked Sep 23, 2026
23	North Highland	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 23, 2026	1,001-5,000	1,792 contacts →
	Indirect evidence “North Highland helps businesses move from strategy to reality, taking a pragmatic and practical approach to build solutions that work and create impact that lasts.” Source: RevenueBase Database · checked Sep 23, 2026
24	Delaware Belux	Indirect evidence	Kortrijk, BelgiumHQ checked Sep 23, 2026	1,001-5,000	1,713 contacts →
	Indirect evidence “WHAT do we do?” Source: RevenueBase Database · checked Sep 23, 2026
25	Implement Consulting Group	Indirect evidence	Hellerup, DenmarkHQ checked Sep 23, 2026	1,001-5,000	1,681 contacts →
	Indirect evidence “How can organisations become truly fit for humans and fit for the future?” Source: RevenueBase Database · checked Sep 23, 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: change 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 change consulting firms.
Partial evidence: Its own public description names part of change consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name change 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 74,586 change consulting firms worldwide

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Change consulting firms worldwide at a glance

As of Sep 23, 2026

33.2%Verified-email coverage

16.8%Mobile-number coverage

7.9Average contacts per company

1-10Median size (employees)

3.4%Largest-city concentration · London

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

58,525

11-50

10,604

51-200

2,217

201-500

422

501-1,000

163

1,001-5,000

108

5,001-10,000

10001+

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 change 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: 39 countries, largest first: the United States, France, Germany, the United Kingdom, Brazil, Canada, Australia, the Netherlands, Spain, Italy and 29 more. Country and city lists for change consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “change 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 change 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 change 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, 195,630 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 23, 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.

Change consulting firms by location

290 lists · largest first

Every Change 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 change 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 change consulting firms are there worldwide?

RevenueBase identified 74,586 change 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?

EXL, headquartered in New York, tops this list with the largest team on record.

Which country has the most change consulting firms?

The United States leads with 26,256 companies, followed by France (7,392) and Germany (6,019). Every change consulting firms list by country and city is linked on this page.

Which city has the most change consulting firms?

London leads with 2509 headquartered companies, followed by Sao Paulo (2202) and Paris (1344).

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 195,630 verified decision-maker contacts tracked across these 74,586 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 23, 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.