Company lists · Data refreshed October 2026

Top 25 Clinical outcomes research organizations based in the United States

RevenueBase identified 482 company matches for clinical outcomes research organizations associated with the United States as of October 2026 and tracks 47,133 professional contacts across them, including 20,005 with verified work emails. New York is the largest hub.

This list covers company matches for clinical outcomes research organizations associated with the 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 October 9, 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 Oct 9, 2026 How this list was built
482Companies
47,133Contacts tracked
20,005Verified emails
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The 25 largest clinical outcomes research organizations based in the United States

Ranked by team size
Top 25 of 482 company matches for clinical outcomes research organizations based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRaleigh, NC, United StatesHQ recorded Oct 9, 202610001+19,864 contacts →

Exact match

“Parexel is a leading global clinical research organization (CRO) providing insights-driven Clinical and Consulting solutions to the world’s life sciences industry.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchRaleigh, NC, United StatesHQ recorded Oct 9, 202610001+4,768 contacts →

Exact match

“PRA is now an ICON plc company.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3Exact matchCambridge, MA, United StatesHQ recorded Oct 9, 20261,001-5,0001,574 contacts →

Exact match

“Cytel is the world’s leading data-science CRO, driving advancements in human health through robust analytics and innovative clinical trial software.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchHorsham, PA, United StatesHQ recorded Oct 9, 20261,001-5,0001,572 contacts →

Exact match

“ClinChoice is a leading global full & functional service CRO, renowned for its exceptional product development and lifecycle management capabilities across the pharmaceutical…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5Exact matchLincoln, NE, United StatesHQ recorded Oct 9, 20261,001-5,0001,151 contacts →

Exact match

“Celerion, a leader in early clinical research, delivers Applied Translational Medicine.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchRockville, MD, United StatesHQ recorded Oct 9, 20261,001-5,000945 contacts →

Exact match

“Emmes is a Contract Research Organization delivering complex clinical trials through therapeutic expertise, scientific rigor, and technology-enabled execution.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchCanton, MI, United StatesHQ recorded Oct 9, 2026501-1,000913 contacts →

Exact match

“MMS Holdings (MMS) is an award-winning, data-focused clinical research organization (CRO) that supports the pharmaceutical and biotech industries with a proven, scientific…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchDurham, NC, United StatesHQ recorded Oct 9, 2026501-1,000747 contacts →

Exact match

“Experience the Cohesion Effect.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchRaleigh, NC, United StatesHQ recorded Oct 9, 20261,001-5,000734 contacts →

Exact match

“Caidya is a multi-therapeutic clinical research organization (CRO) serving innovators worldwide.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchDurham, NC, United StatesHQ recorded Oct 9, 202610001+528 contacts →

Exact match

“THIS PAGE IS NOT MONITORED.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchWashington, DC, United StatesHQ recorded Oct 9, 2026201-500507 contacts →

Exact match

“PCORI helps people make informed healthcare decisions, and improves healthcare delivery and outcomes, by producing and promoting high-integrity, evidence-based information that…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12Exact matchCoral Gables, FL, United StatesHQ recorded Oct 9, 2026501-1,000383 contacts →

Exact match

“Sitero is a next-generation, site-focused clinical research organization (CRO) for life sciences and institutional research organizations that helps get treatments to market safer…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchCary, NC, United StatesHQ recorded Oct 9, 2026501-1,000356 contacts →

Exact match

“RQM+ is *The* MedTech CRO – a full-service partner supporting everything from groundbreaking innovation to well-established technologies.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchMarlborough, MA, United StatesHQ recorded Oct 9, 2026201-500323 contacts →

Exact match

“Avania is the only global CRO built for MedTech, integrating regulatory strategy, clinical development, and market access and reimbursement to take innovations from concept to…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15Exact matchBethesda, MD, United StatesHQ recorded Oct 9, 2026201-500292 contacts →

Exact match

“Founded in 1979, Technical Resources International, Incorporated (TRI) is a certified Hispanic woman-owned full service contract research organization plus (CRO+).”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16Exact matchLas Vegas, NV, United StatesHQ recorded Oct 9, 202651-200245 contacts →

Exact match

“Novum is a Contract Research Organization (CRO) that provides research services to the worldwide pharmaceutical industry.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchLawrenceville, NJ, United StatesHQ recorded Oct 9, 2026n/a241 contacts →

Exact match

“ISPOR, the professional society for health economics and outcomes research (HEOR), is an international, multistakeholder, nonprofit dedicated to advancing HEOR excellence to…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchIndianapolis, IN, United StatesHQ recorded Oct 9, 202651-200236 contacts →

Exact match

“Regenstrief Institute, Inc, an international leader in electronic medical records and health care data integration, is a medical research and development organization focused on…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchDallas, TX, United StatesHQ recorded Oct 9, 2026n/a211 contacts →

Exact match

“Parkland Center for Clinical Innovation (PCCI) is a research institute that leverages clinical expertise, data science and non-medical drivers of health to address the needs of…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchSt. Louis, MO, United StatesHQ recorded Oct 9, 2026201-500209 contacts →

Exact match

“Biomedical Systems was acquired by ERT in September, 2017.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21Exact matchFranklin, TN, United StatesHQ recorded Oct 9, 2026201-500189 contacts →

Exact match

“ObjectiveHealth is a leading integrated research provider partnering with physicians and healthcare organizations to establish advanced infrastructure for research programs.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchWinston-salem, NC, United StatesHQ recorded Oct 9, 202651-200186 contacts →

Exact match

“As a leading Integrated Research Organization (IRO), we partner with major healthcare systems to embed clinical trials at the point of care, connecting patients to research…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchEatontown, NJ, United StatesHQ recorded Oct 9, 2026201-500185 contacts →

Exact match

“Clinilabs is a global, full-service contract research organization (CRO) focused exclusively on central nervous system (CNS) drug, device, and technology development.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24Exact matchAmherst, NY, United StatesHQ recorded Oct 9, 202651-200181 contacts →

Exact match

“Frontier Science is an independent not-for-profit organization with proven expertise in the design, conduct, analysis, and reporting of clinical trials and observational studies.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchGrand Rapids, MI, United StatesHQ recorded Oct 9, 202651-200171 contacts →

Exact match

“iMPROve Health is a recognized national leader in healthcare quality improvement.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

Showing 25 of 482 clinical outcomes research organizations based in the United States

See the full list, filter by size, metro and specialty, and access 20,005 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clinical outcomes research organizations based in the United States at a glance

As of Oct 9, 2026
42.4%Verified-email coverage
97.8Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · New York
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
167
11-50
178
51-200
96
201-500
20
501-1,000
6
1,001-5,000
10
5,001-10,000
1
10001+
4

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 482 companies.

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 the United States whose business descriptions match “clinical outcomes research organizations” 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 20,005 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 October 9, 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.

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 “clinical outcomes research organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clinical outcomes research organizations are there based in the United States?

RevenueBase identified 482 company matches for clinical outcomes research organizations associated with the United States as of October 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?

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

Which city has the most clinical outcomes research organizations?

New York leads with 16 company records, followed by Boston (13) and Houston (12).

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 20,005 professional contacts with verified work emails tracked across these 482 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 October 9, 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.