Company lists · Data refreshed September 2026

Top 25 Change management consulting services based in the United States

RevenueBase identified 16,603 change management consulting services headquartered in the United States as of September 2026 and tracks 139,757 professional contacts across them, including 53,667 with verified work emails and 48,828 with mobile numbers. New York is the largest hub.

This list covers change management consulting services 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 23, 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 23, 2026 86% judged on-target in blind review
16,603Companies
139,757Contacts tracked
53,667Verified emails
48,828Mobile numbers
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The 25 largest change management consulting services based in the United States

Ranked by team size
Top 25 of 16,603 change management consulting services based in the United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to change management consulting 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
1Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 23, 202610001+13,486 contacts →

Partial evidence

“Korn Ferry is a global consulting firm that powers performance.”

Source: RevenueBase Database · checked Sep 23, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 23, 20265,001-10,0008,230 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
3Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 20265,001-10,0006,978 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
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 23, 20261,001-5,0005,082 contacts →

Indirect evidence

“From strategy to execution.”

Source: RevenueBase Database · checked Sep 23, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 23, 20261,001-5,0003,583 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
6Indirect evidenceSomerset, NJ, United StatesHQ checked Sep 23, 2026n/a3,285 contacts →

Indirect evidence

“For over 25 years, eTeam has been trusted by global organizations to lead high-stakes programs where execution matters as much as strategy.”

Source: RevenueBase Database · checked Sep 23, 2026
7Indirect evidenceSan Antonio, TX, United StatesHQ checked Sep 23, 20261,001-5,0002,330 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
8Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 23, 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 23, 2026
9Indirect evidenceIrvine, CA, United StatesHQ checked Sep 23, 20261,001-5,0001,345 contacts →

Indirect evidence

“Trace3 delivers business transformation.”

Source: RevenueBase Database · checked Sep 23, 2026
10Partial evidenceFrisco, TX, United StatesHQ checked Sep 23, 2026501-1,0001,149 contacts →

Partial evidence

“W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.”

Source: RevenueBase Database · checked Sep 23, 2026
11Strong evidenceChicago, IL, United StatesHQ checked Sep 23, 20265,001-10,0001,029 contacts →

Strong evidence

“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: RevenueBase Database · checked Sep 23, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 23, 2026501-1,000821 contacts →

Partial evidence

“Porter Novelli is the strategic communications company, fueled by innovation, empowering clients to do business better in an ever-changing world.”

Source: RevenueBase Database · checked Sep 23, 2026
13Indirect evidenceRichardson, TX, United StatesHQ checked Sep 23, 2026501-1,000706 contacts →

Indirect evidence

“MobileComm is now fully integrated with UST.”

Source: RevenueBase Database · checked Sep 23, 2026
14Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 2026501-1,000678 contacts →

Indirect evidence

“Spaulding Ridge is the modern GSI for the modern executive team.”

Source: RevenueBase Database · checked Sep 23, 2026
15Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 2026501-1,000656 contacts →

Indirect evidence

“At Point B, we help organizations adapt and thrive in a world that refuses to stand still.”

Source: RevenueBase Database · checked Sep 23, 2026
16Strong evidenceCincinnati, OH, United StatesHQ checked Sep 23, 2026501-1,000618 contacts →

Strong evidence

“SEI is a management consulting firm delivering fresh perspectives and reliable results.”

Source: RevenueBase Database · checked Sep 23, 2026
17Indirect evidenceLewisville, TX, United StatesHQ checked Sep 23, 2026501-1,000598 contacts →

Indirect evidence

“At TechStar Group, we are a Cloud & Digital Transformation Advisory and implementation services company headquartered in Dallas, TX-dedicated to being a trusted partner in…”

Source: RevenueBase Database · checked Sep 23, 2026
18Indirect evidenceWayne, PA, United StatesHQ checked Sep 23, 20261,001-5,000557 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 23, 2026
19Strong evidenceChicago, IL, United StatesHQ checked Sep 23, 2026201-500546 contacts →

Strong evidence

“DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.”

Source: RevenueBase Database · checked Sep 23, 2026
20Strong evidenceChicago, IL, United StatesHQ checked Sep 23, 2026201-500543 contacts →

Strong evidence

“AArete is a global management and technology consulting firm specializing in driving profitability improvement, digital transformation, and strategy & change for clients.”

Source: RevenueBase Database · checked Sep 23, 2026
21Partial evidenceFort Collins, CO, United StatesHQ checked Sep 23, 2026201-500535 contacts →

Partial evidence

“Since our founding in 1994, Prosci has been laser-focused on change.”

Source: RevenueBase Database · checked Sep 23, 2026
22Strong evidenceDallas, TX, United StatesHQ checked Sep 23, 2026201-500420 contacts →

Strong evidence

“Sendero is a management consulting firm that optimizes technology, improves operations, advances workforce productivity, and enhances customer experience-all to deliver tangible…”

Source: RevenueBase Database · checked Sep 23, 2026
23Strong evidenceColumbus, OH, United StatesHQ checked Sep 23, 2026201-500416 contacts →

Strong evidence

“Avaap is a technology and management consulting firm that helps organizations modernize systems, transform processes, and drive meaningful outcomes.”

Source: RevenueBase Database · checked Sep 23, 2026
24Indirect evidenceIrving, TX, United StatesHQ checked Sep 23, 20261,001-5,000412 contacts →

Indirect evidence

“We accelerate business transformation by solving complex technology, business and talent challenges.”

Source: RevenueBase Database · checked Sep 23, 2026
25Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 2026201-500382 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 16,603 change management consulting services based in the United States

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Change management consulting services based in the United States at a glance

As of Sep 23, 2026
38.4%Verified-email coverage
34.9%Mobile-number coverage
8.4Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · New York
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
13,564
11-50
2,280
51-200
542
201-500
126
501-1,000
34
1,001-5,000
31
5,001-10,000
5
10001+
11

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 25.0d

Company record updated

Median 69.0d

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 consulting 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “change management consulting 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 consulting 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 consulting services, 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, 53,667 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 management consulting services 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 change management consulting 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 consulting services are there based in the United States?

RevenueBase identified 16,603 change management consulting services 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 change management consulting services?

New York leads with 676 headquartered companies, followed by Atlanta (467) and Chicago (447).

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 53,667 verified decision-maker contacts tracked across these 16,603 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.