Company lists · Data refreshed September 2026
Top 25 Independent research organizations based in the United States
RevenueBase identified 951 independent research organizations headquartered in the United States as of September 2026 and tracks 52,284 professional contacts across them, including 15,188 with verified work emails. New York is the largest hub.
This list covers independent research organizations 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 20, 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 independent research organizations based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,490 contacts → | ||||
Partial evidence “MITRE is a nonprofit systems engineering, applied research, and advanced technology organization.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,248 contacts → | ||||
Indirect evidence “Westat offers innovative professional services to help clients improve outcomes in health, education, and social policy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,025 contacts → | ||||
Strong evidence “Southwest Research Institute is an independent, nonprofit, applied research and development organization.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,660 contacts → | ||||
Partial evidence “RAND is a nonprofit, nonpartisan research organization that provides leaders with the information they need to make evidence-based decisions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,502 contacts → | ||||
Partial evidence “We Engineer Solutions for the Nation’s Toughest Problems As an independent nonprofit engineering innovation company, Draper provides engineering services directly to government…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 2,205 contacts → | ||||
Strong evidence “An independent non-profit institute headquartered in Silicon Valley, SRI is a global leader in research and development.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,494 contacts → | ||||
Partial evidence “SRC, Inc, a not-for-profit research and development company, combines information, science, technology and ingenuity to solve “impossible” problems in the areas of defense…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,343 contacts → | ||||
Partial evidence “IDA (Institute for Defense Analyses) – a not-for-profit corporation headquartered in Alexandria, Virginia just outside Washington, DC – operates three Federally Funded Research…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,261 contacts → | ||||
Indirect evidence “Noblis is a nonprofit science, technology, and strategy organization that brings the best of scientific thought, management, and engineering expertise in an environment of…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,157 contacts → | ||||
Partial evidence “The Research Foundation for the State University of New York (RF) is the largest, most comprehensive university-connected research foundation in the country.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,149 contacts → | ||||
Strong evidence “Concurrent Technologies Corporation (CTC) is an independent, nonprofit, applied scientific research and development professional services organization.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,103 contacts → | ||||
Partial evidence “WCG is a true partner to research sponsors, CROs, sites and participants in navigating the clinical research journey.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 758 contacts → | ||||
Partial evidence “Caidya is a multi-therapeutic clinical research organization (CRO) serving innovators worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 658 contacts → | ||||
Strong evidence “Health Management Associates is an independent national research and consulting firm specializing in complex health care program and policy issues.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 585 contacts → | ||||
Partial evidence “For nearly 40 years, Kaufman Hall has provided independent, objective insights grounded in sound data and analysis to help clients fulfill their missions, achieve their goals, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 517 contacts → | ||||
Indirect evidence “In 1958 the Air Force needed a technically qualified unbiased organization that could rapidly provide analysis for identified and evolving mission requirements.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 397 contacts → | ||||
Partial evidence “MRIGlobal is a world leader in applied science and technology research.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 325 contacts → | ||||
Partial evidence “Transparency Market Research Pvt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 311 contacts → | ||||
Indirect evidence “BATTELLE ENERGY ALLIANCE LLC BEA ETC is a civic & social organization company based out of PO BOX 1625, Idaho Falls, Idaho, United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 292 contacts → | ||||
Partial evidence “Since Wolfe Research, LLC’s founding in 2008, our mission has been to deliver best-in-class research and service-providing timely, rigorous, and unconflicted insights from the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 289 contacts → | ||||
Partial evidence “Founded in 1979, Technical Resources International, Incorporated (TRI) is a certified Hispanic woman-owned full service contract research organization plus (CRO+).” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 274 contacts → | ||||
Partial evidence “OTR is a leading platform for primary research and one of the largest channel research firms servicing the institutional investment community.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 251 contacts → | ||||
Partial evidence “Centricity Research is an integrated research organization (IRO) with more than 40 wholly owned and integrated clinical research offices across North America.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 245 contacts → | ||||
Indirect evidence “Global Science & Technology was founded in 1991.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 214 contacts → | ||||
Indirect evidence “Frasco has hundreds of investigators and regional offices located throughout the country.” Source: RevenueBase Database · checked Sep 20, 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: independent research organizations. 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 independent research organizations.
- Partial evidence
- Its own public description names part of independent research organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name independent research organizations. 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 951 independent research organizations based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 15,188 reachable decision-makers.
Free signup · no credit card
Independent research organizations based in the United States at a glance
As of Sep 20, 2026Companies by employee count
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 951 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 independent research organizations, 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 “independent research organizations”. 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 independent research organizations), 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 independent research organizations, 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, 15,188 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 20, 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.
Independent research organizations by metro
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 independent research organizations, 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 independent research organizations are there based in the United States?
RevenueBase identified 951 independent research organizations 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?
MITRE, headquartered in Mclean, tops this list with the largest team on record.
Which city has the most independent research organizations?
New York leads with 52 headquartered companies, followed by Washington (32) and San Francisco (30).
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 15,188 verified decision-maker contacts tracked across these 951 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 951 independent research organizations based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Independent research organizations by geography
- Independent research organizations based in Mumbai, India
- Independent research organizations based in New Delhi, India
- Independent research organizations based in New York, United States
- Independent research organizations based in San Francisco, United States
- Independent research organizations based in Washington, United States
- Independent research organizations based in Argentina
- Independent research organizations based in Australia
- Independent research organizations based in Belgium
- Independent research organizations based in Brazil
- Independent research organizations based in Canada
- Independent research organizations based in France
- Independent research organizations based in Germany
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Independent research organizations based in Mumbai, India
- Independent research organizations based in New Delhi, India
- Independent research organizations based in New York, United States
- Independent research organizations based in San Francisco, United States
- Independent research organizations based in Washington, United States
- Independent research organizations based in Argentina