Company lists · Data refreshed September 2026

Top 25 Change management services worldwide

RevenueBase identified 9,280 change management services worldwide as of September 2026 and tracks 44,674 professional contacts across them, including 12,572 with verified work emails. The United States is the largest market and London the largest hub.

This list covers change management 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 change management 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
9,280Companies
44,674Contacts tracked
12,572Verified emails
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The 25 largest change management services worldwide

Ranked by team size
Top 25 of 9,280 change management services worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to change management 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
1Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261,001-5,0001,792 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 21, 2026
2Partial evidenceCamberley, United KingdomHQ checked Sep 21, 20261,001-5,000610 contacts →

Partial evidence

“Cennox help the world’s leading brands to execute and deliver their complex change programs across technology, security and facility transformation.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceBengaluru, IndiaHQ checked Sep 21, 2026n/a408 contacts →

Partial evidence

“Culturelligence drives organizational transformation by energizing and engaging leaders and employees as change champions.”

Source: RevenueBase Database · checked Sep 21, 2026
4Strong evidenceTripoli, LibyaHQ checked Sep 21, 202651-200329 contacts →

Strong evidence

“Mediterranean For Communication and Information Technology (MCIT) provides a total coverage of the life-cycle phases of all technology-related projects and change management…”

Source: RevenueBase Database · checked Sep 21, 2026
5Strong evidenceParis, FranceHQ checked Sep 21, 2026201-500321 contacts →

Strong evidence

“Colombus Consulting is a management consulting firm specialized in business change and complex project management.”

Source: RevenueBase Database · checked Sep 21, 2026
6Strong evidenceSao Paulo, BrazilHQ checked Sep 21, 2026201-500292 contacts →

Strong evidence

“Integration is a strategy & management consultancy committed to realizing the change that our clients need.”

Source: RevenueBase Database · checked Sep 21, 2026
7Strong evidenceLondon, United KingdomHQ checked Sep 21, 2026n/a281 contacts →

Strong evidence

“WCL specialises in change and transformation management and has worked extensively with nearly all UK Government Departments, as well as many private sector clients, on planning…”

Source: RevenueBase Database · checked Sep 21, 2026
8Strong evidenceGeneve, SwitzerlandHQ checked Sep 21, 2026201-500248 contacts →

Strong evidence

“Global change management consulting company with >25 years of experience.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 21, 2026201-500247 contacts →

Partial evidence

“We’re a dynamic consulting firm, focused on delivering change.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceStockholm, SwedenHQ checked Sep 21, 2026201-500222 contacts →

Indirect evidence

“Vi vitaliserar företag genom förändring.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 21, 2026201-500206 contacts →

Indirect evidence

“Welcome to the Protiviti perspective.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceSandton, South AfricaHQ checked Sep 21, 2026201-500196 contacts →

Partial evidence

“We live in an era of exponential change.”

Source: RevenueBase Database · checked Sep 21, 2026
13Strong evidenceParis, FranceHQ checked Sep 21, 2026201-500188 contacts →

Strong evidence

“Our mission is supporting our clients' organizational change through Product management and providing them innovation capacity through technology and the Cloud”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceAlphen Aan Den Rijn, NetherlandsHQ checked Sep 21, 202651-200187 contacts →

Indirect evidence

“Blue Bricks is dé energieke veranderpartner die focust op wat er wél kan.”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 21, 2026n/a187 contacts →

Partial evidence

“JA Consulting Limited is a passionate change consultancy focussing on sales and business transformation.”

Source: RevenueBase Database · checked Sep 21, 2026
16Strong evidenceFort Wayne, IN, United StatesHQ checked Sep 21, 202651-200174 contacts →

Strong evidence

“Founded in 1998, we specialize in training, organizational change management, and health strategy and innovation.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202651-200158 contacts →

Indirect evidence

“SeederDeBoer is een eigenzinnig organisatieadviesbureau, gevestigd naast het centraal station van Amsterdam.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidencePortsmouth, NH, United StatesHQ checked Sep 21, 2026201-500155 contacts →

Indirect evidence

“For 25+ years, many of the world’s largest companies and best-known brands have chosen Spencer Thomas to guide them through their HCM journey.”

Source: RevenueBase Database · checked Sep 21, 2026
19Strong evidenceBarcelona, SpainHQ checked Sep 21, 2026201-500148 contacts →

Strong evidence

“Nexe The Way of Change is a company specialized in change management, active in Europe and Latin America.”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceFranceHQ checked Sep 21, 202651-200142 contacts →

Partial evidence

“Orphoz, a McKinsey company, is an implementation leader with a proven track record for driving lasting impact and value from the ground-up, through rigorous project management…”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceMunich, GermanyHQ checked Sep 21, 202651-200141 contacts →

Partial evidence

“With almost 100 employees and a network of more than managers, Atreus masters difficult management problems - especially in transformation and transition situations - when the…”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceBracknell, United KingdomHQ checked Sep 21, 202651-200140 contacts →

Partial evidence

“We enable every SAP-run business to manage change intelligently - no matter how complex their technology landscape.”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 21, 20261,001-5,000139 contacts →

Partial evidence

“We believe that change is an opportunity to thrive.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceNeu-anspach, GermanyHQ checked Sep 21, 202651-200137 contacts →

Indirect evidence

“Assure Consulting unterstützt Unternehmen bei der erfolgreichen Realisierung komplexer Großprojekte im In- und Ausland.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceRoma, ItalyHQ checked Sep 21, 202651-200120 contacts →

Indirect evidence

“Double Consulting è un'azienda italiana attiva nella consulenza direzionale.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 9,280 change management services worldwide

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Change management services worldwide at a glance

As of Sep 21, 2026
28.1%Verified-email coverage
4.8Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
7,860
11-50
1,169
51-200
186
201-500
30
501-1,000
9
1,001-5,000
8
10001+
2

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 change management 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 change management services are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “change management 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 change management 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 change management 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, 12,572 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.

Change management services by location

41 lists · largest first

Every Change management 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 change management 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 change management services are there worldwide?

RevenueBase identified 9,280 change management 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?

North Highland, headquartered in Atlanta, tops this list with the largest team on record.

Which country has the most change management services?

The United States leads with 1,407 companies, followed by the United Kingdom (848) and Germany (788). Every change management services list by country and city is linked on this page.

Which city has the most change management services?

London leads with 281 headquartered companies, followed by Paris (187) and Stockholm (93).

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 12,572 verified decision-maker contacts tracked across these 9,280 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.