Company lists · Data refreshed September 2026

Top 24 Organizational change management consultants based in New York, United States

RevenueBase identified 508 organizational change management consultants headquartered in New York, United States as of September 2026 and tracks 17,207 professional contacts across them, including 8,091 with verified work emails. New York is the largest hub.

This list covers organizational change management consultants headquartered in New York, 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
508Companies
17,207Contacts tracked
8,091Verified emails
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The 24 largest organizational change management consultants based in New York, United States

Ranked by team size
Top 24 of 508 organizational change management consultants based in New York, 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 5, 20265,001-10,0008,230 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
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 20261,001-5,0005,082 contacts →

“From strategy to execution.”

Source: company website · checked Sep 5, 2026
3Strong evidenceNew York, NY, United StatesHQ checked Sep 5, 2026501-1,000765 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
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 2026201-500191 contacts →

“We champion a culture of innovation to help our clients build the future of business.”

Source: company website · checked Sep 5, 2026
5Strong evidenceNew York, NY, United StatesHQ checked Sep 5, 202651-200170 contacts →

“SYPartners is a transformation consultancy that helps leaders improve organizational performance by aligning vision, activating strategy, and building cultures of competitive…”

Source: company website · checked Sep 5, 2026
6Strong evidenceNew York, United StatesHQ checked Sep 5, 20261,001-5,000167 contacts →

“We're a business process management organization that delivers professional services to our customers globally.”

Source: company website · checked Sep 5, 2026
7Partial evidenceNew York, NY, United StatesHQ checked Sep 5, 202651-200164 contacts →

“COLLINS is a transformation consultancy with offices in San Francisco and New York City.”

Source: company website · checked Sep 5, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 5, 202651-200150 contacts →

“Acquis is a different kind of management consulting firm.”

Source: company website · checked Sep 5, 2026
9Strong evidenceNew York, NY, United StatesHQ checked Sep 5, 2026201-500122 contacts →

“Tefen is an international management consulting firm, committed to driving organizations towards achieving performance excellence.”

Source: company website · checked Sep 5, 2026
10Partial evidenceNew York, NY, United StatesHQ checked Sep 5, 202651-20076 contacts →

“Our trained and certified US-based professionals provide intelligent, informed insight to manage IT change events – improving support for your end-users and reducing risk…”

Source: company website · checked Sep 5, 2026
11Partial evidenceNew York, United StatesHQ checked Sep 5, 202651-20068 contacts →

“We’re United Minds, a global consultancy of thinkers, doers and partners who genuinely care about supporting you-and your people-in whatever business challenge comes your way.”

Source: company website · checked Sep 5, 2026
12Strong evidenceNew York, United StatesHQ checked Sep 5, 202651-20055 contacts →

“Daggerwing Group is a Top-Ten rated global change consultancy*.”

Source: company website · checked Sep 5, 2026
13Partial evidenceNew York, United StatesHQ checked Sep 5, 202651-20049 contacts →

“Curious Rubik is a multidisciplinary team of consultants and solution design experts.”

Source: company website · checked Sep 5, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202611-5044 contacts →

“We follow a customer first approach and collaborate with our clients to identify what is important for their business.We understand the synergy between the journey and the…”

Source: company website · checked Sep 5, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202651-20041 contacts →

“DRUM Associates With over 50 years of industry experience, DRUM has been a trusted end-to-end service provider from inception to delivery.”

Source: company website · checked Sep 5, 2026
16Partial evidenceNew York, NY, United StatesHQ checked Sep 5, 2026n/a34 contacts →

“Who We Are: At The Leadership Development Group (TLD Group), we believe leadership is the transformative force that drives change and connects intention to execution.”

Source: company website · checked Sep 5, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202611-5027 contacts →

“Achieving Extraordinary Results with companies and clients worldwide through Scenario Planning, Executive Coaching, Corporate Governance and M&A.”

Source: company website · checked Sep 5, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202611-5026 contacts →

“In 2024, Lumeri joined Ankura.”

Source: company website · checked Sep 5, 2026
19Partial evidenceNew York, NY, United StatesHQ checked Sep 5, 202611-5024 contacts →

“Healthy, thriving nonprofits are needed to drive positive social change in our world.”

Source: company website · checked Sep 5, 2026
20Strong evidenceNew York, NY, United StatesHQ checked Sep 5, 202611-5024 contacts →

“cg42 is a boutique management consultancy that helps some of the world’s leading companies define and execute the bold moves required to get ahead of their competition.”

Source: company website · checked Sep 5, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202651-20023 contacts →

“VISTRADA partners with clients to find, plan, and deliver solutions that generate revenue, streamline costs, and manage risk.”

Source: company website · checked Sep 5, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202611-5022 contacts →

“Our mission is simple: To work with clients to solve their business problems and realize opportunities for growth.”

Source: company website · checked Sep 5, 2026
23Strong evidenceNew York, United StatesHQ checked Sep 5, 20261-1021 contacts →

“Creative and Strategic consulting firm Saints works with organizations to embrace Change, Innovate and discover new audience behaviors to improve customer experience starting from…”

Source: company website · checked Sep 5, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202611-5020 contacts →

“VSA Consulting Group, LLC is a global pioneer in the use of coaching in the corporate world.”

Source: company website · checked Sep 5, 2026

Showing 24 of 508 organizational change management consultants based in New York, United States

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Organizational change management consultants based in New York, United States at a glance

As of Sep 5, 2026
47.0%Verified-email coverage
33.9Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · New York
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
394
11-50
85
51-200
16
201-500
7
501-1,000
2
1,001-5,000
3
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for New York, over 508 companies.

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 New York, 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 New York 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, 8,091 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 in the United States

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 New York, United States?

RevenueBase identified 508 organizational change management consultants headquartered in New York, 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?

Oliver Wyman, headquartered in New York, 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 8,091 verified decision-maker contacts tracked across these 508 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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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.