Company lists · Data refreshed September 2026
Top 25 Global consulting firms based in New York, United States
RevenueBase identified 1,112 global consulting firms headquartered in New York, United States as of September 2026 and tracks 100,723 professional contacts across them, including 43,413 with verified work emails and 16,849 with mobile numbers. New York is the largest hub.
This list covers global 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 12, 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.
The 25 largest global consulting firms based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 2 | 13,099 contacts → | ||||
Partial 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 12, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 4 | 8,037 contacts → | ||||
Partial evidence “We are your global partner in tech-integrated business solutions, turning AI ambition into measurable business impact.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 5 | 5,082 contacts → | ||||
Indirect evidence “From strategy to execution.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 7 | 2,996 contacts → | ||||
Indirect evidence “Citrin Cooperman is one of the nation’s largest and fastest-growing professional services firms.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2,035 contacts → | ||||
Partial evidence “UHY is one of the nation’s largest professional services firms providing audit, tax, consulting and advisory services to clients primarily in the dynamic middle market.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 10 | 605 contacts → | ||||
Indirect evidence “SSA & Company transforms companies to enhance business outcomes (e.g, growth, profit, capability).” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 11 | 530 contacts → | ||||
Indirect evidence “Lumenalta partners with companies and organizations to accelerate business performance through technology.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 12 | 423 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 13 | 337 contacts → | ||||
Indirect evidence “At Phronesis Partners, we turn complexity into clarity for the world's leading organizations.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 15 | 252 contacts → | ||||
Partial evidence “Aon plc (NYSE:AON) is a leading global professional services firm providing a broad range of risk, retirement and health solutions.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 16 | 238 contacts → | ||||
Indirect evidence “Founded in 2014, The Millennium Alliance is a premier technology and business advisory firm dedicated to transforming the digital enterprise.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 17 | 219 contacts → | ||||
Partial evidence “Kraft Kennedy is a multidisciplinary technology and management consulting firm.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 18 | 198 contacts → | ||||
Indirect evidence “Bold steps forward.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 19 | 191 contacts → | ||||
Indirect evidence “We champion a culture of innovation to help our clients build the future of business.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 21 | 183 contacts → | ||||
Partial evidence “Essex delivers transformative business solutions to major global corporations.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 22 | 171 contacts → | ||||
Indirect evidence “For over 33 years, Sharp Decisions Inc.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 23 | 167 contacts → | ||||
Partial evidence “We're a business process management organization that delivers professional services to our customers globally.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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 12, 2026Thanks. The Data Team will review it. | |||||
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: global 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 global consulting firms.
- Partial evidence
- Its own public description names part of global consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name global 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 1,112 global consulting firms based in New York, United States
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Global consulting firms based in New York, United States at a glance
As of Sep 12, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 15.0dCompany record updated
Median 62.0dHow 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 global 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 “global 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 global 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 global 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, 43,413 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 12, 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.
Global consulting firms by metro in the United States
- Global consulting firms in New York808
- Global consulting firms in Washington439
- Global consulting firms in Chicago437
- Global consulting firms in Atlanta436
- Global consulting firms in Houston379
- Global consulting firms in Los Angeles300
- Global consulting firms in Dallas280
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 global 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 global consulting firms are there based in New York, United States?
RevenueBase identified 1,112 global 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 global consulting firms?
New York leads with 808 headquartered companies, followed by Washington (439) and Chicago (437).
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 43,413 verified decision-maker contacts tracked across these 1,112 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 12, 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.
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