Company lists · Data refreshed September 2026

Top 25 Clinical research marketing agencies based in the United States

Name: Clinical research marketing agencies 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 3,801 companies tracked

RevenueBase identified 3,801 clinical research marketing agencies headquartered in the United States as of September 2026 and tracks 247,623 professional contacts across them, including 106,628 with verified work emails. New York is the largest hub.

This list covers clinical research marketing agencies 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 27, 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 27, 2026 86% judged on-target in blind review

3,801Companies

247,623Contacts tracked

106,628Verified emails

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The 25 largest clinical research marketing agencies based in the United States

Ranked by team size

Top 25 of 3,801 clinical research marketing agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to clinical research marketing agencies: 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	IQVIA	Strong evidence	Durham, NC, United StatesHQ checked Sep 27, 2026	10001+	63,824 contacts →
	Strong evidence “IQVIA (NYSE:IQV) is a leading global provider of clinical research services, commercial insights and healthcare intelligence to the life sciences and healthcare industries.” Source: RevenueBase Database · checked Sep 27, 2026
2	PPD	Strong evidence	Waltham, MA, United StatesHQ checked Sep 27, 2026	10001+	20,530 contacts →
	Strong evidence “The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Source: RevenueBase Database · checked Sep 27, 2026
3	Parexel	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 27, 2026	10001+	19,257 contacts →
	Strong evidence “Parexel is a leading global clinical research organization (CRO) providing insights-driven Clinical and Consulting solutions to the world’s life sciences industry.” Source: RevenueBase Database · checked Sep 27, 2026
4	Fortrea	Strong evidence	Research Triangle Park, NC, United StatesHQ checked Sep 27, 2026	10001+	10,632 contacts →
	Strong evidence “Fortrea (Nasdaq: FTRE) is a leading global clinical research organization (CRO) dedicated to providing innovative clinical development solutions to the life sciences industry.” Source: RevenueBase Database · checked Sep 27, 2026
5	Medpace	Strong evidence	Cincinnati, OH, United StatesHQ checked Sep 27, 2026	5,001-10,000	5,960 contacts →
	Strong evidence “Medpace is a scientifically-driven, global, full-service clinical contract research organization (CRO) providing Phase I-IV clinical development services to the biotechnology…” Source: RevenueBase Database · checked Sep 27, 2026
6	Covance	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 27, 2026	10001+	5,220 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
7	PRA Health Sciences	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 27, 2026	10001+	4,708 contacts →
	Indirect evidence “PRA is now an ICON plc company.” Source: RevenueBase Database · checked Sep 27, 2026
8	Worldwide Clinical Trials	Partial evidence	Research Triangle Park, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	3,440 contacts →
	Partial evidence “Worldwide Clinical Trials (Worldwide) is a global CRO serving development-driven biopharmaceutical companies, with more than 4,400 professionals operating across more than 70…” Source: RevenueBase Database · checked Sep 27, 2026
9	Westat	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 27, 2026	1,001-5,000	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 27, 2026
10	Medidata Solutions	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,704 contacts →
	Partial evidence “Medidata is powering smarter treatments and healthier people through digital solutions to support clinical trials.” Source: RevenueBase Database · checked Sep 27, 2026
11	Premier Research	Strong evidence	Morrisville, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,584 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
12	Signant Health	Strong evidence	Blue Bell, PA, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,083 contacts →
	Strong evidence “For 25+ years, Signant Health has been pioneering solutions and methodologies that propel clinical research programs toward regulatory success.” Source: RevenueBase Database · checked Sep 27, 2026
13	Propharma	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,079 contacts →
	Indirect evidence “At ProPharma, we help pharmaceutical, biotechnology, and medical device companies bring life-changing therapies to market.” Source: RevenueBase Database · checked Sep 27, 2026
14	Precision For Medicine	Strong evidence	Bethesda, MD, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,781 contacts →
	Strong evidence “Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…” Source: RevenueBase Database · checked Sep 27, 2026
15	CYTEL	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,580 contacts →
	Partial evidence “Cytel is the world’s leading data-science CRO, driving advancements in human health through robust analytics and innovative clinical trial software.” Source: RevenueBase Database · checked Sep 27, 2026
16	Trinity Life Sciences	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,566 contacts →
	Indirect evidence “Trinity is the commercialization intelligence partner for life sciences.” Source: RevenueBase Database · checked Sep 27, 2026
17	Clinchoice	Indirect evidence	Horsham, PA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,516 contacts →
	Indirect evidence “ClinChoice is a leading global full & functional service CRO, renowned for its exceptional product development and lifecycle management capabilities across the pharmaceutical…” Source: RevenueBase Database · checked Sep 27, 2026
18	NAMSA	Partial evidence	Toledo, OH, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,275 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
19	FCB Health NEW York	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,173 contacts →
	Partial evidence “Part of Omnicom Health, FCB Health New York is a full-service agency with more than 40 years of experience marketing to healthcare professionals, patients and consumers.” Source: RevenueBase Database · checked Sep 27, 2026
20	INC Research	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 27, 2026	10001+	1,123 contacts →
	Strong evidence “INC Research/inVentiv Health has become Syneos Health, the only fully integrated end-to-end clinical and commercial solution organization.” Source: RevenueBase Database · checked Sep 27, 2026
21	WCG	Strong evidence	Cary, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,103 contacts →
	Strong evidence “WCG is a true partner to research sponsors, CROs, sites and participants in navigating the clinical research journey.” Source: RevenueBase Database · checked Sep 27, 2026
22	Celerion	Strong evidence	Lincoln, NE, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,080 contacts →
	Strong evidence “Celerion, a leader in early clinical research, delivers Applied Translational Medicine.” Source: RevenueBase Database · checked Sep 27, 2026
23	CTI Clinical Trial And Consulting Services	Strong evidence	Covington, KY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,043 contacts →
	Strong evidence “CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…” Source: RevenueBase Database · checked Sep 27, 2026
24	Inotiv	Partial evidence	West Lafayette, IN, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,015 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
25	Navitas Life Sciences	Strong evidence	Gaithersburg, MD, United StatesHQ checked Sep 27, 2026	1,001-5,000	990 contacts →
	Strong evidence “Navitas Life Sciences is a global Clinical Research partner with over 35 years of expertise in Clinical, Regulatory, Safety, and Data Management solutions.” Source: RevenueBase Database · checked Sep 27, 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: clinical research marketing agencies. 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 clinical research marketing agencies.
Partial evidence: Its own public description names part of clinical research marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical research marketing agencies. 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 3,801 clinical research marketing agencies based in the United States

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Clinical research marketing agencies based in the United States at a glance

As of Sep 27, 2026

43.1%Verified-email coverage

65.1Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

1,862

11-50

1,242

51-200

444

201-500

117

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 3,801 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 clinical research marketing agencies, 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 “clinical research marketing agencies”. 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 clinical research marketing agencies), 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 clinical research marketing agencies, 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, 106,628 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 27, 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.

Clinical research marketing agencies 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 clinical research marketing agencies, 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 clinical research marketing agencies are there based in the United States?

RevenueBase identified 3,801 clinical research marketing agencies 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?

IQVIA, headquartered in Durham, tops this list with the largest team on record.

Which city has the most clinical research marketing agencies?

New York leads with 140 headquartered companies, followed by Miami (91) and San Diego (83).

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 106,628 verified decision-maker contacts tracked across these 3,801 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 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 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.