Company lists · Data refreshed September 2026

Top 25 Organizational change management consultants based in the United States

Name: Organizational change management consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 13,135 companies tracked

RevenueBase identified 13,135 organizational change management consultants headquartered in the United States as of September 2026 and tracks 110,451 professional contacts across them, including 41,734 with verified work emails and 39,083 with mobile numbers. New York is the largest hub.

This list covers organizational change management consultants headquartered in the United States, 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 5, 2026.

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 5, 2026 86% judged on-target in blind review

13,135Companies

110,451Contacts tracked

41,734Verified emails

39,083Mobile numbers

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The 25 largest organizational change management consultants based in the United States

Ranked by team size

Top 25 of 13,135 organizational change management consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to organizational change management consultants: 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	Korn Ferry	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	10001+	13,486 contacts →
	“Korn Ferry is a global consulting firm that powers performance.” Source: company website · checked Sep 5, 2026
2	Oliver Wyman	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	5,001-10,000	8,230 contacts →
	“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: company website · checked Sep 5, 2026
3	Kearney	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	5,001-10,000	6,978 contacts →
	“As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: company website · checked Sep 5, 2026
4	Strategy	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	5,082 contacts →
	“From strategy to execution.” Source: company website · checked Sep 5, 2026
5	Frost & Sullivan	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,330 contacts →
	“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: company website · checked Sep 5, 2026
6	North Highland	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,792 contacts →
	“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: company website · checked Sep 5, 2026
7	W3global	Indirect evidence	Frisco, TX, United StatesHQ checked Sep 5, 2026	501-1,000	1,149 contacts →
	“W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Source: company website · checked Sep 5, 2026
8	Navigant	Partial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	5,001-10,000	1,029 contacts →
	“Guidehouse is a leading global provider of consulting services to the public and commercial markets with broad capabilities in management, technology, and risk consulting.” Source: company website · checked Sep 5, 2026
9	The Vertex Companies LLC	Strong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	765 contacts →
	“The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…” Source: company website · checked Sep 5, 2026
10	Point B	Partial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	501-1,000	656 contacts →
	“At Point B, we help organizations adapt and thrive in a world that refuses to stand still.” Source: company website · checked Sep 5, 2026
11	SEI	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 5, 2026	501-1,000	618 contacts →
	“SEI is a management consulting firm delivering fresh perspectives and reliable results.” Source: company website · checked Sep 5, 2026
12	Solomonedwards	Partial evidence	Wayne, PA, United StatesHQ checked Sep 5, 2026	1,001-5,000	557 contacts →
	“For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Source: company website · checked Sep 5, 2026
13	DLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	201-500	546 contacts →
	“DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Source: company website · checked Sep 5, 2026
14	Prosci	Partial evidence	Fort Collins, CO, United StatesHQ checked Sep 5, 2026	201-500	535 contacts →
	“Since our founding in 1994, Prosci has been laser-focused on change.” Source: company website · checked Sep 5, 2026
15	Sendero	Partial evidence	Dallas, TX, United StatesHQ checked Sep 5, 2026	201-500	420 contacts →
	“Sendero is a management consulting firm that optimizes technology, improves operations, advances workforce productivity, and enhances customer experience-all to deliver tangible…” Source: company website · checked Sep 5, 2026
16	AVAAP	Strong evidence	Columbus, OH, United StatesHQ checked Sep 5, 2026	201-500	416 contacts →
	“Avaap is a technology and management consulting firm that helps organizations modernize systems, transform processes, and drive meaningful outcomes.” Source: company website · checked Sep 5, 2026
17	Tekgence INC	Indirect evidence	Irving, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	412 contacts →
	“We accelerate business transformation by solving complex technology, business and talent challenges.” Source: company website · checked Sep 5, 2026
18	Weaver Consultants Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	201-500	382 contacts →
	“From its inception in 1991, Weaver Consultants Group has been founded upon the tenets of attentive and responsive customer service, strong project management, and solid internal…” Source: company website · checked Sep 5, 2026
19	ATLAS	Indirect evidence	Berkeley Heights, NJ, United StatesHQ checked Sep 5, 2026	501-1,000	382 contacts →
	“Atlas is a,%, that partners with our clients to solve complex challenges, driving operational excellence and delivering impactful solutions.” Source: company website · checked Sep 5, 2026
20	Clarkston Consulting	Partial evidence	Durham, NC, United StatesHQ checked Sep 5, 2026	201-500	365 contacts →
	“Clarkston Consulting offers the full spectrum of strategy, operations, implementation, and managed services with a change-focused, data-driven approach for life sciences, consumer…” Source: company website · checked Sep 5, 2026
21	Tier1 Performance	Indirect evidence	Covington, KY, United StatesHQ checked Sep 5, 2026	201-500	341 contacts →
	“At TiER1 Performance, we partner with leaders to turn bold strategy into real impact-by aligning people, systems, and purpose.” Source: company website · checked Sep 5, 2026
22	Eagle Hill Consulting	Partial evidence	Arlington, VA, United StatesHQ checked Sep 5, 2026	201-500	337 contacts →
	“Unconventional, woman-owned, and award-winning-at Eagle Hill, we break away from the expected and apply the best tools and methodologies of larger consultancies in the nimble…” Source: company website · checked Sep 5, 2026
23	IPM Integrated Project Management Company	Partial evidence	Burr Ridge, IL, United StatesHQ checked Sep 5, 2026	201-500	307 contacts →
	“Integrated Project Management Company, Inc.(IPM) is a business consulting firm focused on planning and implementing strategically critical initiatives across multiple industries…” Source: company website · checked Sep 5, 2026
24	Dominion Consulting	Indirect evidence	Reston, VA, United StatesHQ checked Sep 5, 2026	51-200	278 contacts →
	“Dominion Consulting is now TeraThink.” Source: company website · checked Sep 5, 2026
25	Wimmer Solutions	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	501-1,000	262 contacts →
	“We help you to see the full picture, bringing our experts together with you to co-develop approaches and operationalize plans across the dimension of strategy, people, process…” Source: company website · checked Sep 5, 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: organizational change management consultants. 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 organizational change management consultants.
Partial evidence: Its own public description names part of organizational change management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name organizational change management consultants. 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 13,135 organizational change management consultants based in the United States

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Organizational change management consultants based in the United States at a glance

As of Sep 5, 2026

37.8%Verified-email coverage

35.4%Mobile-number coverage

8.4Average contacts per company

1-10Median size (employees)

3.9%Largest-city concentration · New York

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

10,886

11-50

1,725

51-200

377

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

38,7780–30

2,55131–60

1661–90

1190–180

378180+

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 organizational change management consultants, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “organizational change management consultants”. 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 organizational change management consultants), 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 organizational change management consultants, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 41,734 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 5, 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.

Organizational change management consultants by metro

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 organizational change management consultants, 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 organizational change management consultants are there based in the United States?

RevenueBase identified 13,135 organizational change management consultants headquartered in the United States 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?

Korn Ferry, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most organizational change management consultants?

New York leads with 508 headquartered companies, followed by Atlanta (373) and Chicago (371).

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 41,734 verified decision-maker contacts tracked across these 13,135 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 5, 2026.

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Organizational change management consultants by geography

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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.