Company lists · Data refreshed September 2026

Top 25 Clinical research consulting firms based in the United States

Name: Clinical research consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 5,533 companies tracked

RevenueBase identified 5,533 company matches for clinical research consulting firms associated with the United States as of September 2026 and tracks 264,648 professional contacts across them, including 115,546 with verified work emails. New York is the largest hub.

This list covers company matches for clinical research consulting firms 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 September 27, 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 Sep 27, 2026 How this list was built

5,533Companies

264,648Contacts tracked

115,546Verified emails

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The 25 largest clinical research consulting firms based in the United States

Ranked by team size

Top 25 of 5,533 company matches for clinical research consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	IQVIA	Exact match	Durham, NC, United StatesHQ recorded Sep 27, 2026	10001+	63,824 contacts →
	Exact match “IQVIA (NYSE:IQV) is a leading global provider of clinical research services, commercial insights and healthcare intelligence to the life sciences and healthcare industries.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	PPD	Exact match	Waltham, MA, United StatesHQ recorded Sep 27, 2026	10001+	20,530 contacts →
	Exact match “The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Parexel	Exact match	Raleigh, NC, United StatesHQ recorded Sep 27, 2026	10001+	19,257 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 · Sep 27, 2026 · View company records in RevenueBase
4	Fortrea	Exact match	Research Triangle Park, NC, United StatesHQ recorded Sep 27, 2026	10001+	10,632 contacts →
	Exact match “Fortrea (Nasdaq: FTRE) is a leading global clinical research organization (CRO) dedicated to providing innovative clinical development solutions to the life sciences industry.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Medpace	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 27, 2026	5,001-10,000	5,960 contacts →
	Exact match “Medpace is a scientifically-driven, global, full-service clinical contract research organization (CRO) providing Phase I-IV clinical development services to the biotechnology…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Covance	Exact match	Princeton, NJ, United StatesHQ recorded Sep 27, 2026	10001+	5,220 contacts →
	Exact match “As the drug development business of Laboratory Corporation of America Holdings (Labcorp) and the world’s most comprehensive drug development #CRO service company, we have helped…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Worldwide Clinical Trials	Exact match	Research Triangle Park, NC, United StatesHQ recorded Sep 27, 2026	1,001-5,000	3,440 contacts →
	Exact match “Worldwide Clinical Trials (Worldwide) is a global CRO serving development-driven biopharmaceutical companies, with more than 4,400 professionals operating across more than 70…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Westat	Exact match	Bethesda, MD, United StatesHQ recorded Sep 27, 2026	1,001-5,000	3,248 contacts →
	Exact match “Westat offers innovative professional services to help clients improve outcomes in health, education, and social policy.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Eversana	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	5,001-10,000	3,149 contacts →
	Exact match “EVERSANA® is a leading independent provider of global services to the life sciences industry.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Medidata Solutions	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,704 contacts →
	Exact match “Medidata is powering smarter treatments and healthier people through digital solutions to support clinical trials.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Premier Research	Exact match	Morrisville, NC, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,584 contacts →
	Exact match “Premier Research International LLC (Premier) is a global leader in clinical research and consulting services with expertise in driving an efficient and effective path to market…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Signant Health	Exact match	Blue Bell, PA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,083 contacts →
	Exact match “For 25+ years, Signant Health has been pioneering solutions and methodologies that propel clinical research programs toward regulatory success.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Propharma	Exact match	Raleigh, NC, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,079 contacts →
	Exact match “At ProPharma, we help pharmaceutical, biotechnology, and medical device companies bring life-changing therapies to market.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Precision For Medicine	Exact match	Bethesda, MD, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,781 contacts →
	Exact match “Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	CYTEL	Exact match	Cambridge, MA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,580 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 · Sep 27, 2026 · View company records in RevenueBase
16	Trinity Life Sciences	Exact match	Waltham, MA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,566 contacts →
	Exact match “Trinity is the commercialization intelligence partner for life sciences.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Clinchoice	Exact match	Horsham, PA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,516 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 · Sep 27, 2026 · View company records in RevenueBase
18	NAMSA	Exact match	Toledo, OH, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,275 contacts →
	Exact match “Helping medical device Sponsors improve healthcare since 1967, NAMSA is the world’s leading MedTech Contract Research Organization (CRO) offering global end-to-end development…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Cornerstone Research	Exact match	San Francisco, CA, United StatesHQ recorded Sep 27, 2026	501-1,000	1,248 contacts →
	Exact match “At Cornerstone Research, we attribute our success to a unique combination of resources: a creative and energetic staff, cutting-edge technology and research, and our work with…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	INC Research	Exact match	Raleigh, NC, United StatesHQ recorded Sep 27, 2026	10001+	1,123 contacts →
	Exact match “INC Research/inVentiv Health has become Syneos Health, the only fully integrated end-to-end clinical and commercial solution organization.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	WCG	Exact match	Cary, NC, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,103 contacts →
	Exact match “WCG is a true partner to research sponsors, CROs, sites and participants in navigating the clinical research journey.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Celerion	Exact match	Lincoln, NE, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,080 contacts →
	Exact match “Celerion, a leader in early clinical research, delivers Applied Translational Medicine.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	CTI Clinical Trial And Consulting Services	Exact match	Covington, KY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,043 contacts →
	Exact match “CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Inotiv	Exact match	West Lafayette, IN, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,015 contacts →
	Exact match “WHERE INSIGHTS LEAD TO ANSWERS Expect More In choosing a partner for discovery, development and research models, expect more: more attention, more insight, and a superlative…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Navitas Life Sciences	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 27, 2026	1,001-5,000	990 contacts →
	Exact match “Navitas Life Sciences is a global Clinical Research partner with over 35 years of expertise in Clinical, Regulatory, Safety, and Data Management solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “clinical research consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,533 clinical research consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 115,546 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clinical research consulting firms based in the United States at a glance

As of Sep 27, 2026

43.7%Verified-email coverage

47.8Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

3,255

11-50

1,509

51-200

497

201-500

125

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 5,533 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 research consulting firms” 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 115,546 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 September 27, 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.

Clinical research consulting firms by metro

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 research consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clinical research consulting firms are there based in the United States?

RevenueBase identified 5,533 company matches for clinical research consulting firms associated with the United States as of September 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?

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

Which city has the most clinical research consulting firms?

New York leads with 168 company records, followed by Boston (158) and San Diego (137).

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 115,546 professional contacts with verified work emails tracked across these 5,533 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 September 27, 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.