Company lists · Data refreshed September 2026

Top 25 IT research and advisory companies based in the United States

Name: IT research and advisory companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,949 companies tracked

RevenueBase identified 1,949 IT research and advisory companies headquartered in the United States as of September 2026 and tracks 65,009 professional contacts across them, including 26,436 with verified work emails. New York is the largest hub.

This list covers IT research and advisory companies 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 21, 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 21, 2026 86% judged on-target in blind review

1,949Companies

65,009Contacts tracked

26,436Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest IT research and advisory companies based in the United States

Ranked by team size

Top 25 of 1,949 IT research and advisory companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT research and advisory companies: 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	Gartner	Indirect evidence	Stamford, CT, United StatesHQ checked Sep 21, 2026	10001+	22,675 contacts →
	Indirect evidence “We deliver actionable, objective business and technology insights.” Source: RevenueBase Database · checked Sep 21, 2026
2	IDC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,681 contacts →
	Indirect evidence “International Data Corporation (IDC) is the technology intelligence layer of the AI economy.” Source: RevenueBase Database · checked Sep 21, 2026
3	Forrester	Strong evidence	Cambridge, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,071 contacts →
	Strong evidence “Forrester is one of the most influential research and advisory firms in the world.” Source: RevenueBase Database · checked Sep 21, 2026
4	Computerworld	Partial evidence	New York City, NY, United StatesHQ checked Sep 21, 2026	n/a	2,569 contacts →
	Partial evidence “Computerworld from Foundry is recognized as the most trusted resource to Enterprise IT Leaders at all management levels seeking to align their business and technology goals.” Source: RevenueBase Database · checked Sep 21, 2026
5	ISG Information Services Group	Strong evidence	Stamford, CT, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,736 contacts →
	Strong evidence “ISG (Nasdaq: is a global AI-centered technology research and advisory firm.” Source: RevenueBase Database · checked Sep 21, 2026
6	Everest Group	Partial evidence	Dallas-fort Worth, TX, United StatesHQ checked Sep 21, 2026	501-1,000	1,307 contacts →
	Partial evidence “Everest Group is a leading research firm that applies research to people’s day-to-day business problems.” Source: RevenueBase Database · checked Sep 21, 2026
7	Jasper Colin	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	501-1,000	734 contacts →
	Partial evidence “Founded in 2007, Jasper Colin is a leading provider of comprehensive research and analytics services, powered by technology and backed by a growing team of industry experts.” Source: RevenueBase Database · checked Sep 21, 2026
8	EMA	Partial evidence	Boulder, CO, United StatesHQ checked Sep 21, 2026	n/a	684 contacts →
	Partial evidence “Enterprise Management Associates (EMA) is the leading independent industry analyst and consulting firm dedicated to the IT Management market.” Source: RevenueBase Database · checked Sep 21, 2026
9	IDG International Data Group	Indirect evidence	Needham, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	677 contacts →
	Indirect evidence “International Data Group (IDG) is the parent organization of International Data Corporation (IDC), the technology intelligence layer of the AI economy.” Source: RevenueBase Database · checked Sep 21, 2026
10	Coleman Research	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	671 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
11	Altman Solon	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	501-1,000	669 contacts →
	Indirect evidence “In 2020, Altman Vilandrie & Company and Solon Management Consulting cemented a decades-long partnership across the Atlantic to form Altman Solon, the world’s largest global…” Source: RevenueBase Database · checked Sep 21, 2026
12	Market Research Future Mrfr	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	574 contacts →
	Partial evidence “Market Research Future (MRFR) is one of the most trusted firms for syndicated research services.” Source: RevenueBase Database · checked Sep 21, 2026
13	Aarete	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	201-500	543 contacts →
	Indirect 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 21, 2026
14	Grand View Research, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	501-1,000	539 contacts →
	Partial evidence “Grand View Research is an end-to-end market research technology and consulting business.” Source: RevenueBase Database · checked Sep 21, 2026
15	Hanover Research	Partial evidence	Arlington, VA, United StatesHQ checked Sep 21, 2026	201-500	405 contacts →
	Partial evidence “Hanover is a leading provider of research and analytics for thousands of organizations worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
16	Avasant	Indirect evidence	El Segundo, CA, United StatesHQ checked Sep 21, 2026	201-500	340 contacts →
	Indirect evidence “Avasant is a leading management consulting firm focused on translating the power of technology into realizable business strategies.” Source: RevenueBase Database · checked Sep 21, 2026
17	IANS	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	327 contacts →
	Partial evidence “For the security practitioner caught between rapidly evolving threats and demanding executives, IANS Research is a clear-headed resource for decision-making and articulating risk.” Source: RevenueBase Database · checked Sep 21, 2026
18	ONE Source	Partial evidence	Greenville, NC, United StatesHQ checked Sep 21, 2026	201-500	327 contacts →
	Partial evidence “One Source is a leading technology advisory firm dedicated to driving innovation, efficiency, and growth in today's dynamic digital landscape.” Source: RevenueBase Database · checked Sep 21, 2026
19	Transparency Market Research	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 21, 2026	201-500	325 contacts →
	Partial evidence “Transparency Market Research Pvt.” Source: RevenueBase Database · checked Sep 21, 2026
20	Technologyadvice	Partial evidence	Nashville, TN, United StatesHQ checked Sep 21, 2026	201-500	309 contacts →
	Partial evidence “B2B Technology Advice From Experts Who Use It \| The latest B2B technology and software advice, trends, and guidance coming to you from the experts who work with it every day.” Source: RevenueBase Database · checked Sep 21, 2026
21	Strategic Systems INC	Indirect evidence	Dublin, OH, United StatesHQ checked Sep 21, 2026	201-500	292 contacts →
	Indirect evidence “We build the bridge between your business strategy and your technological capability.” Source: RevenueBase Database · checked Sep 21, 2026
22	Atcs INC	Partial evidence	Montvale, NJ, United StatesHQ checked Sep 21, 2026	501-1,000	275 contacts →
	Partial evidence “ATCS is a Technology Consulting firm providing services in the area of Enterprise IT, Digital Transformation, Data Analytics and Marketing Insights.” Source: RevenueBase Database · checked Sep 21, 2026
23	Datos Insights	Strong evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	257 contacts →
	Strong evidence “Datos Insights is the leading research and advisory partner to the banking, insurance, securities, and payments technology industries-both the financial services firms and the…” Source: RevenueBase Database · checked Sep 21, 2026
24	Ducker Carlisle	Strong evidence	Troy, MI, United StatesHQ checked Sep 21, 2026	51-200	238 contacts →
	Strong evidence “Named one of America's Top Management Consulting Firms 2026 by Business Insider, Ducker Carlisle is a global market research, strategy consulting and M&A advisory firm that helps…” Source: RevenueBase Database · checked Sep 21, 2026
25	The Millennium Alliance	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	238 contacts →
	Partial 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 21, 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: IT research and advisory companies. 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 IT research and advisory companies.
Partial evidence: Its own public description names part of IT research and advisory companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT research and advisory companies. 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 1,949 IT research and advisory companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 26,436 reachable decision-makers.

Free signup · no credit card

View the full list →

IT research and advisory companies based in the United States at a glance

As of Sep 21, 2026

40.7%Verified-email coverage

33.4Average contacts per company

1-10Median size (employees)

6.7%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,078

11-50

530

51-200

241

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,949 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 IT research and advisory companies, 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 “IT research and advisory companies”. 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 IT research and advisory companies), 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 IT research and advisory companies, 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, 26,436 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 21, 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.

IT research and advisory companies by metro

IT research and advisory companies in New York131
IT research and advisory companies in Boston50
IT research and advisory companies in Chicago47
IT research and advisory companies in San Francisco44
IT research and advisory companies in Austin42
IT research and advisory companies in Atlanta39
IT research and advisory companies in Houston33
IT research and advisory companies in Dallas30
IT research and advisory companies in Washington28
IT research and advisory companies in Denver26
IT research and advisory companies in Los Angeles25

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 IT research and advisory companies, 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 IT research and advisory companies are there based in the United States?

RevenueBase identified 1,949 IT research and advisory companies 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?

Gartner, headquartered in Stamford, tops this list with the largest team on record.

Which city has the most IT research and advisory companies?

New York leads with 131 headquartered companies, followed by Boston (50) and Chicago (47).

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 26,436 verified decision-maker contacts tracked across these 1,949 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,949 IT research and advisory companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

IT research and advisory companies by geography

Browse the directory

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.