Company lists · Data refreshed October 2026

Top 25 International clinical trial networks worldwide

RevenueBase identified 1,122 company matches for international clinical trial networks worldwide as of October 2026 and tracks 24,418 professional contacts across them, including 7,547 with verified work emails. The United States is the largest market and Miami the largest hub.

This list covers company matches for international clinical trial networks 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 17, 2026. Country and city lists for international clinical trial networks 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 17, 2026 How this list was built
1,122Companies
24,418Contacts tracked
7,547Verified emails
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The 25 largest international clinical trial networks worldwide

Ranked by team size
Top 25 of 1,122 company matches for international clinical trial networks worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 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 matchDurham, NC, United StatesHQ recorded Oct 17, 20261,001-5,000991 contacts →

Exact match

“Velocity is the world’s leading organization of fully integrated clinical research sites.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2Exact matchRockville, MD, United StatesHQ recorded Oct 17, 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 17, 2026 · View company records in RevenueBase
3Exact matchNashville, TN, United StatesHQ recorded Oct 17, 2026501-1,000928 contacts →

Exact match

“Sarah Cannon Research Institute (SCRI) is one of the world’s leading oncology research organizations, conducting community-based clinical trials.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 17, 20261,001-5,000884 contacts →

Exact match

“CenExel is a leading integrated, wholly owned, nationwide clinical research site network comprised of 18 Centers of Excellence in major metropolitan areas across the U.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5Exact matchHyderabad, IndiaHQ recorded Oct 17, 2026201-500532 contacts →

Exact match

“AXIS Clinicals Limited is one of the most experienced and fastest growing Clinical Research Organization.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
6Exact matchApex, NC, United StatesHQ recorded Oct 17, 2026501-1,000342 contacts →

Exact match

“Flourish Research is a fully integrated, multi-site clinical trial network serving sponsors and CROs across North America.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7Exact matchWarsaw, PolandHQ recorded Oct 17, 2026201-500319 contacts →

Exact match

“Pratia Research Site Network, owns and commands a network of over 100 clinical research sites, establishing strong presence across 8 countries globally.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8Exact matchLiverpool, United KingdomHQ recorded Oct 17, 2026501-1,000303 contacts →

Exact match

“FutureMeds is an independent, fully-owned European Site Network and DCT service provider dedicated to running patient-centric clinical trials and delivering quality data for the…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9Exact matchSan Antonio, TX, United StatesHQ recorded Oct 17, 2026501-1,000295 contacts →

Exact match

“Deeply rooted in community oncology centers globally, the START Center for Cancer Research ("START") provides patients with access to specialized Phase 1 clinical trials for novel…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10Exact matchMorrisville, NC, United StatesHQ recorded Oct 17, 2026201-500288 contacts →

Exact match

“Science 37 is a modern clinical research site that delivers trials directly to patients’ homes.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11Exact matchUnited StatesHQ recorded Oct 17, 2026501-1,000286 contacts →

Exact match

“Accellacare delivers clinical trial services to pharmaceutical, biotechnology, medical device industries.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12Exact matchAustin, TX, United StatesHQ recorded Oct 17, 2026201-500238 contacts →

Exact match

“Elligo Health Research is an integrated research organization founded to bridge the gap between cutting-edge clinical trials and the patients who need them-an idea that sparked…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13Exact matchDenver, CO, United StatesHQ recorded Oct 17, 20261,001-5,000233 contacts →

Exact match

“EmVenio Clinical Research, a Professional Case Management subsidiary, operates from U.S.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14Exact matchMaitland, FL, United StatesHQ recorded Oct 17, 2026201-500232 contacts →

Exact match

“Welcome to K2 Medical Research, a privately-owned clinical research facility with multiple locations in Florida, Tennessee, and Rhode Island.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15Exact matchSan Jose, CA, United StatesHQ recorded Oct 17, 2026201-500229 contacts →

Exact match

“Since 2005, KlinEra has partnered with some of the largest pharmaceutical, biotech and device companies, providing innovative and customized clinical trial and research services.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16Exact matchUnited StatesHQ recorded Oct 17, 2026201-500224 contacts →

Exact match

“At Alcanza℠, we believe in the power of clinical research to move healthcare forward for all patients.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17Exact matchLake Worth, AZ, United StatesHQ recorded Oct 17, 2026501-1,000191 contacts →

Exact match

“Headlands Research is a leading globally integrated site organization with a mission to improve patients’ lives by advancing innovative medical therapies.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18Exact matchWinston-salem, NC, United StatesHQ recorded Oct 17, 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 17, 2026 · View company records in RevenueBase
19Exact matchAmherst, NY, United StatesHQ recorded Oct 17, 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 17, 2026 · View company records in RevenueBase
20Exact matchRaleigh, NC, United StatesHQ recorded Oct 17, 2026201-500171 contacts →

Exact match

“M3 Wake Research is a premier clinical trial network that has been conducting studies since 1984.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Oct 17, 202651-200167 contacts →

Exact match

“Founded in 2006, Tekton Research is a multi-specialty clinical research site organization conducting Phase 1-4 clinical trials across neurology and psychiatry, cardiometabolic…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22Exact matchBuenos Aires, ArgentinaHQ recorded Oct 17, 2026201-500166 contacts →

Exact match

“CINME es un centro de investigación médica fundado en 2007 con la misión de mejorar la calidad de vida de las personas a través de la investigación clínica y una atención médica…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23Exact matchCape Town, South AfricaHQ recorded Oct 17, 202651-200156 contacts →

Exact match

“Accelerate Clinical Trials with Diverse Expertise and Global Reach TASK: Your Partner for Efficient, High-Quality Clinical Research TASK is a leading multinational, multi-site…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24Exact matchSan Antonio, TX, United StatesHQ recorded Oct 17, 2026201-500147 contacts →

Exact match

“At Pinnacle Clinical Research, we are driven by a shared mission to improve lives through innovation in clinical trials.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25Exact matchWalnut Creek, CA, United StatesHQ recorded Oct 17, 202651-200139 contacts →

Exact match

“Hawthorne Health is the leading community site network, with 75+ locations across the U.S.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase

Showing 25 of 1,122 international clinical trial networks worldwide

See the full list, filter by size, metro and specialty, and access 7,547 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International clinical trial networks worldwide at a glance

As of Oct 17, 2026
30.9%Verified-email coverage
21.8Average contacts per company
11-50Median size (employees)
2.2%Largest-city concentration · Miami
Oct 17, 2026Page data refreshed

Companies by employee count

1-10
436
11-50
454
51-200
160
201-500
38
501-1,000
15
1,001-5,000
14
5,001-10,000
1
10001+
2

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 international clinical trial networks are linked below.
What qualifies
Company records worldwide whose business descriptions match “international clinical trial networks” 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 7,547 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 17, 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.

International clinical trial networks by location

5 lists · largest first

Every International clinical trial networks list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “international clinical trial networks”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international clinical trial networks are there worldwide?

RevenueBase identified 1,122 company matches for international clinical trial networks 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?

Velocity Clinical Research, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most international clinical trial networks?

The United States leads with 530 companies, followed by Australia (39) and Brazil (33). Every international clinical trial networks list by country and city is linked on this page.

Which city has the most international clinical trial networks?

Miami leads with 25 company records, followed by Houston (17) and London (14).

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 7,547 professional contacts with verified work emails tracked across these 1,122 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 17, 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.