Company lists · Data refreshed September 2026

Top 25 Clinical trial services companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 6,020 companies tracked

RevenueBase identified 6,020 company matches for clinical trial services companies worldwide as of September 2026 and tracks 288,372 professional contacts across them, including 120,991 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for clinical trial services companies 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 September 21, 2026. Country and city lists for clinical trial services companies 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 Sep 21, 2026 How this list was built

6,020Companies

288,372Contacts tracked

120,991Verified emails

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The 25 largest clinical trial services companies worldwide

Ranked by team size

Top 25 of 6,020 company matches for clinical trial services companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Icon PLC	Exact match	Dublin, JapanHQ recorded Sep 21, 2026	10001+	26,555 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 · Sep 21, 2026 · View company records in RevenueBase
2	PPD	Exact match	Waltham, MA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3	Parexel	Exact match	Raleigh, NC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4	Fortrea	Exact match	Research Triangle Park, NC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5	Iqvia India	Exact match	Bangalore, IndiaHQ recorded Sep 21, 2026	10001+	6,052 contacts →
	Exact match “Formed by the merger of Quintiles and IMS Health in 2016, IQVIA, The Human Data Science Company™ has had a significant presence of over two decades in India through it merged…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Medpace	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
7	Covance	Exact match	Princeton, NJ, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8	Almac Group	Exact match	Craigavon, United KingdomHQ recorded Sep 21, 2026	5,001-10,000	4,577 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 · Sep 21, 2026 · View company records in RevenueBase
9	Worldwide Clinical Trials	Exact match	Research Triangle Park, NC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
10	Eversana	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
11	Medidata Solutions	Exact match	New York, NY, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
12	Premier Research	Exact match	Morrisville, NC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
13	PSI CRO	Exact match	Zug, SwitzerlandHQ recorded Sep 21, 2026	1,001-5,000	2,494 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 · Sep 21, 2026 · View company records in RevenueBase
14	Signant Health	Exact match	Blue Bell, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
15	Propharma	Exact match	Raleigh, NC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16	Precision For Medicine	Exact match	Bethesda, MD, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17	Novotech	Exact match	Singapore, AustraliaHQ recorded Sep 21, 2026	1,001-5,000	1,778 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 · Sep 21, 2026 · View company records in RevenueBase
18	Altasciences	Exact match	Laval, QC, CanadaHQ recorded Sep 21, 2026	1,001-5,000	1,759 contacts →
	Exact match “Outsourcing made easy with a one-stop solution to early-phase drug development.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Pharmaron	Exact match	Beijing, ChinaHQ recorded Sep 21, 2026	10001+	1,720 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 · Sep 21, 2026 · View company records in RevenueBase
20	Cliantha Research Limited	Exact match	Ahmedabad, IndiaHQ recorded Sep 21, 2026	1,001-5,000	1,612 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 · Sep 21, 2026 · View company records in RevenueBase
21	CYTEL	Exact match	Cambridge, MA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
22	Clinchoice	Exact match	Horsham, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
23	Veeda Lifesciences	Exact match	Ahmedabad, IndiaHQ recorded Sep 21, 2026	501-1,000	1,320 contacts →
	Exact match “We partner with innovator and generic companies using our high-quality infrastructure and a global network of clinical trial sites, to launch novel therapies and new products for…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Suvoda	Exact match	Conshohocken, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,255 contacts →
	Exact match “Suvoda is a global clinical trial technology company, now strengthened by our merger with Greenphire.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	ERT	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,255 contacts →
	Exact match “ERT, the global clinical endpoint technology leader, and Bioclinica, a technological and scientific leader in medical imaging, is now the combined company of Clario.” Recorded in the RevenueBase company graph · Sep 21, 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 services companies”. 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 6,020 clinical trial services companies worldwide

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Clinical trial services companies worldwide at a glance

As of Sep 21, 2026

42.0%Verified-email coverage

47.9Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

2,581

11-50

2,049

51-200

896

201-500

230

501-1,000

108

1,001-5,000

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 services companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “clinical trial services companies” 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 120,991 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 21, 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 services companies by location

42 lists · largest first

Every Clinical trial services companies 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 services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clinical trial services companies are there worldwide?

RevenueBase identified 6,020 company matches for clinical trial services companies worldwide 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?

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

Which country has the most clinical trial services companies?

The United States leads with 2,150 companies, followed by India (557) and the United Kingdom (327). Every clinical trial services companies list by country and city is linked on this page.

Which city has the most clinical trial services companies?

London leads with 87 company records, followed by Hyderabad (81) and New York (61).

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 120,991 professional contacts with verified work emails tracked across these 6,020 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 21, 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.