Company lists · Data refreshed October 2026

Top 25 Clinical research laboratories based in the United States

RevenueBase identified 2,473 company matches for clinical research laboratories associated with the United States as of October 2026 and tracks 369,940 professional contacts across them, including 161,633 with verified work emails. Miami is the largest hub.

This list covers company matches for clinical research laboratories 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 October 9, 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 Oct 9, 2026 How this list was built
2,473Companies
369,940Contacts tracked
161,633Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest clinical research laboratories based in the United States

Ranked by team size
Top 25 of 2,473 company matches for clinical research laboratories based in the United States, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWaltham, MA, United StatesHQ recorded Oct 9, 202610001+73,889 contacts →

Exact match

“About Thermo Fisher Scientific Thermo Fisher Scientific Inc.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchDurham, NC, United StatesHQ recorded Oct 9, 202610001+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
3Exact matchBurlington, NC, United StatesHQ recorded Oct 9, 202610001+39,299 contacts →

Exact match

“Clear and confident health care decisions begin with questions.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchRaleigh, NC, United StatesHQ recorded Oct 9, 202610001+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
5Exact matchWilmington, NC, United StatesHQ recorded Oct 9, 202610001+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
6Exact matchResearch Triangle Park, NC, United StatesHQ recorded Oct 9, 202610001+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
7Exact matchCincinnati, OH, United StatesHQ recorded Oct 9, 20265,001-10,0006,234 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
8Exact matchRaleigh, NC, United StatesHQ recorded Oct 9, 202610001+4,768 contacts →

Exact match

“PRA is now an ICON plc company.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchResearch Triangle Park, NC, United StatesHQ recorded Oct 9, 20261,001-5,0003,794 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
10Exact matchChicago, IL, United StatesHQ recorded Oct 9, 20265,001-10,0003,218 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
11Exact matchNew York, NY, United StatesHQ recorded Oct 9, 20261,001-5,0002,678 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
12Exact matchMorrisville, NC, United StatesHQ recorded Oct 9, 20261,001-5,0002,670 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
13Exact matchRaleigh, NC, United StatesHQ recorded Oct 9, 20261,001-5,0002,144 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
14Exact matchBlue Bell, PA, United StatesHQ recorded Oct 9, 20261,001-5,0002,127 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
15Exact matchBethesda, MD, United StatesHQ recorded Oct 9, 20261,001-5,0001,917 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
16Exact matchLancaster, PA, United StatesHQ recorded Oct 9, 20261,001-5,0001,634 contacts →

Exact match

“Eurofins Lancaster Laboratories is one of the largest commercial contract laboratories in the world providing comprehensive laboratory services in the pharmaceutical…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchCambridge, MA, United StatesHQ recorded Oct 9, 20261,001-5,0001,574 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 · Oct 9, 2026 · View company records in RevenueBase
18Exact matchHorsham, PA, United StatesHQ recorded Oct 9, 20261,001-5,0001,572 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 · Oct 9, 2026 · View company records in RevenueBase
19Exact matchMorrisville, NC, United StatesHQ recorded Oct 9, 202610001+1,558 contacts →

Exact match

“Syneos Health® is a leading fully integrated biopharmaceutical solutions organization built to accelerate customer success.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchToledo, OH, United StatesHQ recorded Oct 9, 20261,001-5,0001,313 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 · Oct 9, 2026 · View company records in RevenueBase
21Exact matchConshohocken, PA, United StatesHQ recorded Oct 9, 20261,001-5,0001,303 contacts →

Exact match

“Suvoda is a global clinical trial technology company, now strengthened by our merger with Greenphire.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchBurlington, MA, United StatesHQ recorded Oct 9, 20261,001-5,0001,226 contacts →

Exact match

“Azenta (Nasdaq: AZTA) is a leading provider of life sciences solutions worldwide, enabling impactful breakthroughs and therapies to market faster.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchCary, NC, United StatesHQ recorded Oct 9, 20261,001-5,0001,179 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 · Oct 9, 2026 · View company records in RevenueBase
24Exact matchLincoln, NE, United StatesHQ recorded Oct 9, 20261,001-5,0001,151 contacts →

Exact match

“Celerion, a leader in early clinical research, delivers Applied Translational Medicine.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchCovington, KY, United StatesHQ recorded Oct 9, 20261,001-5,0001,102 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 · Oct 9, 2026 · View company records in RevenueBase

Showing 25 of 2,473 clinical research laboratories based in the United States

See the full list, filter by size, metro and specialty, and access 161,633 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Clinical research laboratories based in the United States at a glance

As of Oct 9, 2026
43.7%Verified-email coverage
149.6Average contacts per company
11-50Median size (employees)
3.0%Largest-city concentration · Miami
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
929
11-50
917
51-200
379
201-500
92
501-1,000
48
1,001-5,000
66
5,001-10,000
9
10001+
29

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 2,473 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 laboratories” 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 161,633 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.

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

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

RevenueBase identified 2,473 company matches for clinical research laboratories associated with the United States 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?

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

Which city has the most clinical research laboratories?

Miami leads with 73 company records, followed by Houston (64) and New York (55).

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 161,633 professional contacts with verified work emails tracked across these 2,473 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 2,473 clinical research laboratories based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.