Company lists · Data refreshed October 2026

Top 25 Clinical trial contract organizations worldwide

Name: Clinical trial contract organizations worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 7,678 companies tracked

RevenueBase identified 7,678 company matches for clinical trial contract organizations worldwide as of October 2026 and tracks 440,588 professional contacts across them, including 172,751 with verified work emails. The United States is the largest market and Hyderabad the largest hub.

This list covers company matches for clinical trial contract organizations worldwide, 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. Country and city lists for clinical trial contract organizations follow the table.

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

7,678Companies

440,588Contacts tracked

172,751Verified emails

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

The 25 largest clinical trial contract organizations worldwide

Ranked by team size

Top 25 of 7,678 company matches for clinical trial contract organizations worldwide, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	IQVIA	Exact match	Durham, NC, United StatesHQ recorded Oct 9, 2026	10001+	66,683 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 · Oct 9, 2026 · View company records in RevenueBase
2	Icon PLC	Exact match	Dublin, JapanHQ recorded Oct 9, 2026	10001+	27,739 contacts →
	Exact match “Since our foundation in Dublin, Ireland in 1990, our mission has been to help our clients to accelerate the development of drugs and devices that save lives and improve quality of…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Parexel	Exact match	Raleigh, NC, United StatesHQ recorded Oct 9, 2026	10001+	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
4	PPD	Exact match	Wilmington, NC, United StatesHQ recorded Oct 9, 2026	10001+	19,757 contacts →
	Exact match “PPD is part of Thermo Fisher Scientific, the world leader in serving science.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Fortrea	Exact match	Research Triangle Park, NC, United StatesHQ recorded Oct 9, 2026	10001+	10,915 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 · Oct 9, 2026 · View company records in RevenueBase
6	Medpace	Exact match	Cincinnati, OH, United StatesHQ recorded Oct 9, 2026	5,001-10,000	6,234 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 · Oct 9, 2026 · View company records in RevenueBase
7	Almac Group	Exact match	Craigavon, United KingdomHQ recorded Oct 9, 2026	5,001-10,000	4,686 contacts →
	Exact match “Partnering to Advance Human Health A unique culture delivering exceptional solutions: Almac is a financially secure, privately owned organisation with 7,800+ employees globally.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Aragen Life Sciences	Exact match	Hyderabad, IndiaHQ recorded Oct 9, 2026	1,001-5,000	4,212 contacts →
	Exact match “Aragen is a trusted R&D and manufacturing partner to the global life sciences industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Worldwide Clinical Trials	Exact match	Research Triangle Park, NC, United StatesHQ recorded Oct 9, 2026	1,001-5,000	3,794 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 · Oct 9, 2026 · View company records in RevenueBase
10	Wuxi Apptec	Exact match	Shanghai, ChinaHQ recorded Oct 9, 2026	10001+	3,261 contacts →
	Exact match “WuXi AppTec is a trusted partner and contributor to the pharmaceutical and life sciences industries, providing R&D and manufacturing services that help advance healthcare…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Eversana	Exact match	Chicago, IL, United StatesHQ recorded Oct 9, 2026	5,001-10,000	3,218 contacts →
	Exact match “EVERSANA® is a leading independent provider of global services to the life sciences industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Evotec	Exact match	Hamburg, GermanyHQ recorded Oct 9, 2026	5,001-10,000	3,063 contacts →
	Exact match “Evotec is a biotechnology company that is committed to advancing drug discovery and development.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Medidata Solutions	Exact match	New York, NY, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,678 contacts →
	Exact match “Medidata is powering smarter treatments and healthier people through digital solutions to support clinical trials.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Premier Research	Exact match	Morrisville, NC, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,670 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 · Oct 9, 2026 · View company records in RevenueBase
15	PSI CRO	Exact match	Zug, SwitzerlandHQ recorded Oct 9, 2026	1,001-5,000	2,622 contacts →
	Exact match “PSI is a leading full-service global Contract Research Organization whose key strength is predictable patient enrollment across multiple therapeutic areas.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Propharma	Exact match	Raleigh, NC, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,144 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 · Oct 9, 2026 · View company records in RevenueBase
17	Signant Health	Exact match	Blue Bell, PA, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,127 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 · Oct 9, 2026 · View company records in RevenueBase
18	Patheon	Exact match	Waltham, MA, United StatesHQ recorded Oct 9, 2026	10001+	2,041 contacts →
	Exact match “Thermo Fisher Scientific provides industry-leading pharma services for drug development, clinical trial logistics, and commercial manufacturing through our Patheon™ brand.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Jubilant Biosys Limited	Exact match	Noida, IndiaHQ recorded Oct 9, 2026	1,001-5,000	1,928 contacts →
	Exact match “Jubilant Biosys is an integrated Contract Research, Development and Manufacturing Organization (CRDMO) providing drug discovery, development, and GMP manufacturing services to…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Precision For Medicine	Exact match	Bethesda, MD, United StatesHQ recorded Oct 9, 2026	1,001-5,000	1,917 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 · Oct 9, 2026 · View company records in RevenueBase
21	Novotech	Exact match	Singapore, AustraliaHQ recorded Oct 9, 2026	1,001-5,000	1,906 contacts →
	Exact match “Novotech is a globally recognized full-service clinical research organization (CRO) and scientific advisory company that provides biotech and small- to mid-sized pharma companies…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Pharmaron	Exact match	Beijing, ChinaHQ recorded Oct 9, 2026	10001+	1,831 contacts →
	Exact match “Pharmaron: Global Life Sciences Services Provider Stock Code: 300759.SZ/3759.HK Founded in 2004, Pharmaron is a premier life sciences service provider that offers a broad spectrum…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Altasciences	Exact match	Laval, QC, CanadaHQ recorded Oct 9, 2026	1,001-5,000	1,781 contacts →
	Exact match “Outsourcing made easy with a one-stop solution to early-phase drug development.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	KBI Biopharma	Exact match	Durham, NC, United StatesHQ recorded Oct 9, 2026	1,001-5,000	1,694 contacts →
	Exact match “KBI Biopharma is an award-winning biopharmaceutical contract services organization providing fully-integrated, accelerated drug development and biomanufacturing services to…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Cliantha Research Limited	Exact match	Ahmedabad, IndiaHQ recorded Oct 9, 2026	1,001-5,000	1,615 contacts →
	Exact match “Cliantha Research, full-service clinical research organization (CRO), provides comprehensive and integrated offerings in Early Phase (BA/BE and Phase I) trials, Late Phase (Phase…” Recorded in the RevenueBase company graph · Oct 9, 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 trial contract organizations”. 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 7,678 clinical trial contract organizations worldwide

See the full list, filter by size, metro and specialty, and access 172,751 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Clinical trial contract organizations worldwide at a glance

As of Oct 9, 2026

39.2%Verified-email coverage

57.4Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Hyderabad

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

3,243

11-50

2,647

51-200

1,154

201-500

296

501-1,000

145

1,001-5,000

119

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for clinical trial contract organizations are linked below.
What qualifies: Company records worldwide whose business descriptions match “clinical trial contract 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. 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 172,751 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.

Clinical trial contract organizations by location

56 lists · largest first

Every Clinical trial contract organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 trial contract organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clinical trial contract organizations are there worldwide?

RevenueBase identified 7,678 company matches for clinical trial contract organizations worldwide 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?

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

Which country has the most clinical trial contract organizations?

The United States leads with 2,601 companies, followed by India (780) and the United Kingdom (420). Every clinical trial contract organizations list by country and city is linked on this page.

Which city has the most clinical trial contract organizations?

Hyderabad leads with 116 company records, followed by London (112) and Bangalore (93).

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 172,751 professional contacts with verified work emails tracked across these 7,678 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.

Ready to reach these companies? Verified emails and direct dials for all 7,678 clinical trial contract organizations worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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 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.