Company lists · Data refreshed September 2026

Top 25 Consultancy firms based in New York, United States

Name: Consultancy firms based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 2,098 companies tracked

RevenueBase identified 2,098 company matches for consultancy firms associated with New York, United States as of September 2026 and tracks 49,502 professional contacts across them, including 27,667 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for consultancy firms associated with New York, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 24, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 24, 2026 How this list was built

2,098Companies

49,502Contacts tracked

27,667Verified emails

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The 25 largest consultancy firms based in New York, United States

Ranked by team size

Top 25 of 2,098 company matches for consultancy firms based in New York, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Alvarez & Marsal	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	10001+	13,099 contacts →
	Exact match “Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	Oliver Wyman	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	5,001-10,000	8,230 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3	Eisneramper	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	1,001-5,000	4,199 contacts →
	Exact match “EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4	Alixpartners	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	1,001-5,000	3,583 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5	Cumming Group	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,612 contacts →
	Exact match “At Cumming Group, we are passionate about helping our clients execute large-scale, complex projects on time and within budget.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	Perella Weinberg	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	501-1,000	883 contacts →
	Exact match “Perella Weinberg is a leading global independent financial services firm, founded in 2006 to address the need for experienced, trusted and unconflicted advice in the financial…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	The Vertex Companies LLC	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	501-1,000	765 contacts →
	Exact match “The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	Coleman Research	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	201-500	671 contacts →
	Exact match “VISASQ/COLEMAN was established as a partnership between VisasQ Inc, Asia’s top expert network and the only publicly traded company in this field, and Coleman Research, a trusted…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9	Prager Metis Cpas	Exact match	New York, United StatesHQ recorded Sep 24, 2026	201-500	467 contacts →
	Exact match “Prager Metis CPAs is an independent, full service, public accounting and consulting firm.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	Keystone	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	201-500	423 contacts →
	Exact match “Keystone is an innovative strategy, economics, and technology consulting firm delivering transformative ideas and novel solutions to global brands and law firms on leading-edge…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	Industri	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	n/a	292 contacts →
	Exact match “Construction Sector/B2B Brand Strategy, Marketing & Business Development INDUSTRI® is a multi-faceted business development consultancy that focuses on key areas of an organization…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	ZEN & ART	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	501-1,000	236 contacts →
	Exact match “Zen & Art is a group of talented and experienced technologists and business practitioners who recognize the need for a simplistic approach amidst mass disruption.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	Lab49	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	201-500	231 contacts →
	Exact match “Lab49 is a specialist consultancy that designs and develops bespoke and innovative technology solutions in partnership with key participants in financial markets.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
14	Kraft & Kennedy, INC	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	51-200	219 contacts →
	Exact match “Kraft Kennedy is a multidisciplinary technology and management consulting firm.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15	Horwath HTL	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	201-500	198 contacts →
	Exact match “Bold steps forward.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16	Research Nester Analytics	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	51-200	191 contacts →
	Exact match “Research Nester is a global consulting firm that works with the most aspirational facilitators to define the future market strategies.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17	Birches Group LLC	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	51-200	183 contacts →
	Exact match “Birches Group LLC is a specialized human resource consultancy focused on labor market data in over 150 emerging and developing countries.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18	Essex Lake Group	Exact match	New York, United StatesHQ recorded Sep 24, 2026	201-500	183 contacts →
	Exact match “Essex delivers transformative business solutions to major global corporations.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19	LECG	Exact match	New York, United StatesHQ recorded Sep 24, 2026	1,001-5,000	181 contacts →
	Exact match “LECG is a global litigation; economics; consulting and business advisory; and governance, assurance, and tax expert services firm.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20	Kurt Salmon, Part Of Accenture Strategy	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	1,001-5,000	167 contacts →
	Exact match “More than 260 employees of Kurt Salmon across the U.S, Germany, U.K, Japan and China are now part of the Accenture Strategy retail industry practice, strengthening its…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21	Cedar Management Consulting International	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	51-200	155 contacts →
	Exact match “Cedar is a global strategy consulting, research, & analytics firm with a 35-year track record & clients across multiple industry sectors.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
22	ITAC	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	n/a	150 contacts →
	Exact match “ITAC is a leading consulting organization located in New York City.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23	FW Cook	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	51-200	145 contacts →
	Exact match “From the beginning, Frederic W.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24	Soho Square Solutions	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	201-500	142 contacts →
	Exact match “Experts on financial regulatory & compliance, business analysis, project Implementation and delivery for Corporate and Investment Banking, Asset management clients Firm…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
25	Vertical Relevance	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	51-200	129 contacts →
	Exact match “Vertical Relevance is an industry-focused consulting firm with deep expertise in financial services and additional regulated industries.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “consultancy firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 2,098 consultancy firms based in New York, United States

See the full list, filter by size, metro and specialty, and access 27,667 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Consultancy firms based in New York, United States at a glance

As of Sep 24, 2026

55.9%Verified-email coverage

23.6Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

1,475

11-50

456

51-200

106

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with New York, United States whose business descriptions match “consultancy firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 27,667 professional contacts with verified work emails across the full matched dataset. 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 24, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Consultancy firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “consultancy firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many consultancy firms are there based in New York, United States?

RevenueBase identified 2,098 company matches for consultancy firms associated with New York, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Alvarez & Marsal tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most consultancy firms?

New York leads the United States with 2,098 company records, followed by Chicago (827) and Atlanta (777).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 27,667 professional contacts with verified work emails tracked across these 2,098 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 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 SmartSearch, 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.