Company lists · Data refreshed September 2026

Top 25 Business consulting firms based in New York, United States

Name: Business consulting 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 8, 2026 1,526 companies tracked

RevenueBase identified 1,526 business consulting firms headquartered in New York, United States as of September 2026 and tracks 83,514 professional contacts across them, including 35,845 with verified work emails and 13,574 with mobile numbers. New York is the largest hub.

This list covers business consulting firms 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 8, 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 8, 2026 86% judged on-target in blind review

1,526Companies

83,514Contacts tracked

35,845Verified emails

13,574Mobile numbers

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The 25 largest business consulting firms based in New York, United States

Ranked by team size

Top 25 of 1,526 business consulting firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to business consulting firms: 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	EXL	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	10001+	40,100 contacts →
	Indirect evidence “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Source: RevenueBase Database · checked Sep 8, 2026
2	Alvarez & Marsal	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	10001+	13,099 contacts →
	Indirect evidence “Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…” Source: RevenueBase Database · checked Sep 8, 2026
3	Oliver Wyman	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	5,001-10,000	8,230 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 8, 2026
4	Strategy	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	1,001-5,000	5,082 contacts →
	Indirect evidence “From strategy to execution.” Source: RevenueBase Database · checked Sep 8, 2026
5	Alixpartners	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	1,001-5,000	3,583 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 8, 2026
6	Porter Novelli	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	501-1,000	821 contacts →
	Indirect 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 8, 2026
7	The Vertex Companies LLC	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	501-1,000	765 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 8, 2026
8	SSA & Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	n/a	605 contacts →
	Indirect evidence “SSA & Company transforms companies to enhance business outcomes (e.g, growth, profit, capability).” Source: RevenueBase Database · checked Sep 8, 2026
9	Industri	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	n/a	292 contacts →
	Indirect evidence “Construction Sector/B2B Brand Strategy, Marketing & Business Development INDUSTRI® is a multi-faceted business development consultancy that focuses on key areas of an organization…” Source: RevenueBase Database · checked Sep 8, 2026
10	Seargin	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	501-1,000	276 contacts →
	Indirect evidence “Seargin was founded to close the gap between traditional advisory and hands-on delivery - combining strategic insight with deep expertise in ERP, AI and data.” Source: RevenueBase Database · checked Sep 8, 2026
11	Kraft & Kennedy, INC	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	219 contacts →
	Strong evidence “Kraft Kennedy is a multidisciplinary technology and management consulting firm.” Source: RevenueBase Database · checked Sep 8, 2026
12	Horwath HTL	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	201-500	198 contacts →
	Indirect evidence “Bold steps forward.” Source: RevenueBase Database · checked Sep 8, 2026
13	Bryant Park Consulting	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	201-500	191 contacts →
	Indirect evidence “We champion a culture of innovation to help our clients build the future of business.” Source: RevenueBase Database · checked Sep 8, 2026
14	Research Nester Analytics	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	191 contacts →
	Strong evidence “Research Nester is a global consulting firm that works with the most aspirational facilitators to define the future market strategies.” Source: RevenueBase Database · checked Sep 8, 2026
15	Essex Lake Group	Indirect evidence	New York, United StatesHQ checked Sep 8, 2026	201-500	183 contacts →
	Indirect evidence “Essex delivers transformative business solutions to major global corporations.” Source: RevenueBase Database · checked Sep 8, 2026
16	Sypartners	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	170 contacts →
	Indirect evidence “SYPartners is a transformation consultancy that helps leaders improve organizational performance by aligning vision, activating strategy, and building cultures of competitive…” Source: RevenueBase Database · checked Sep 8, 2026
17	NEO Tangent Limited	Indirect evidence	New York, United StatesHQ checked Sep 8, 2026	1,001-5,000	167 contacts →
	Indirect evidence “We're a business process management organization that delivers professional services to our customers globally.” Source: RevenueBase Database · checked Sep 8, 2026
18	Kurt Salmon, Part Of Accenture Strategy	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	1,001-5,000	167 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 8, 2026
19	Cedar Management Consulting International	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	155 contacts →
	Strong evidence “Cedar is a global strategy consulting, research, & analytics firm with a 35-year track record & clients across multiple industry sectors.” Source: RevenueBase Database · checked Sep 8, 2026
20	Acquis Consulting Group	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	150 contacts →
	Strong evidence “Acquis is a different kind of management consulting firm.” Source: RevenueBase Database · checked Sep 8, 2026
21	ITAC	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	n/a	150 contacts →
	Strong evidence “ITAC is a leading consulting organization located in New York City.” Source: RevenueBase Database · checked Sep 8, 2026
22	HTD Health	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	201-500	146 contacts →
	Indirect evidence “HTD Health is a strategy and technology consultancy dedicated to healthcare transformation.” Source: RevenueBase Database · checked Sep 8, 2026
23	Vertical Relevance	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	129 contacts →
	Strong evidence “Vertical Relevance is an industry-focused consulting firm with deep expertise in financial services and additional regulated industries.” Source: RevenueBase Database · checked Sep 8, 2026
24	Applied Value Group	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	124 contacts →
	Strong evidence “Founded in 1997 by Executive Chairman Bruce Grant and the late Jan Stenbeck, Applied Value Group is a leading global management consulting firm with decades of experience growing…” Source: RevenueBase Database · checked Sep 8, 2026
25	Tefen Management Consulting	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	201-500	122 contacts →
	Strong evidence “Tefen is an international management consulting firm, committed to driving organizations towards achieving performance excellence.” Source: RevenueBase Database · checked Sep 8, 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: business consulting firms. 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 business consulting firms.
Partial evidence: Its own public description names part of business consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business consulting firms. 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 1,526 business consulting firms based in New York, United States

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Business consulting firms based in New York, United States at a glance

As of Sep 8, 2026

42.9%Verified-email coverage

16.3%Mobile-number coverage

54.7Average contacts per company

1-10Median size (employees)

100.1%Largest-city concentration · New York

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

1,064

11-50

314

51-200

100

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

32,5610–30

2,76931–60

3261–90

2090–180

463180+

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 business consulting firms, 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 “business consulting firms”. 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 business consulting firms), 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 business consulting firms, 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, 35,845 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 8, 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.

Business consulting firms by metro in the United States

Business consulting firms in New York1528
Business consulting firms in Chicago845
Business consulting firms in Atlanta830
Business consulting firms in Houston716
Business consulting firms in Los Angeles654
Business consulting firms in Washington562
Business consulting firms in Dallas528

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 business consulting firms, 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 business consulting firms are there based in New York, United States?

RevenueBase identified 1,526 business consulting firms 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?

EXL, headquartered in New York, tops this list with the largest team on record.

Which city has the most business consulting firms?

New York leads with 1528 headquartered companies, followed by Chicago (845) and Atlanta (830).

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 35,845 verified decision-maker contacts tracked across these 1,526 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 8, 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.