Company lists · Data refreshed October 2026

Top 25 Contract research organizations biotechnology companies based in the United States

Name: Contract research organizations biotechnology companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 4,494 companies tracked

RevenueBase identified 4,494 company matches for contract research organizations biotechnology companies associated with the United States as of October 2026 and tracks 379,559 professional contacts across them, including 159,564 with verified work emails. San Diego is the largest hub.

This list covers company matches for contract research organizations biotechnology companies 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 10, 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 10, 2026 How this list was built

4,494Companies

379,559Contacts tracked

159,564Verified emails

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The 25 largest contract research organizations biotechnology companies based in the United States

Ranked by team size

Top 25 of 4,494 company matches for contract research organizations biotechnology companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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	Thermo Fisher Scientific	Exact match	Waltham, MA, United StatesHQ recorded Oct 10, 2026	10001+	73,889 contacts →
	Exact match “About Thermo Fisher Scientific Thermo Fisher Scientific Inc.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	Parexel	Exact match	Raleigh, NC, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
3	PPD	Exact match	Wilmington, NC, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
4	Biogen	Exact match	Cambridge, MA, United StatesHQ recorded Oct 10, 2026	5,001-10,000	11,060 contacts →
	Exact match “Founded in 1978, Biogen is a leading biotechnology company that pioneers innovative science to deliver new medicines to transform patients’ lives and to create value for…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Fortrea	Exact match	Research Triangle Park, NC, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
6	Indegene	Exact match	Princeton, NJ, United StatesHQ recorded Oct 10, 2026	5,001-10,000	6,657 contacts →
	Exact match “Indegene Limited is the tech-native, life sciences specialist orchestrating the path from commercialization strategy through execution.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Medpace	Exact match	Cincinnati, OH, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
8	Covance	Exact match	Princeton, NJ, United StatesHQ recorded Oct 10, 2026	10001+	5,059 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 · Oct 10, 2026 · View company records in RevenueBase
9	PCI Pharma Services	Exact match	Philadelphia, PA, United StatesHQ recorded Oct 10, 2026	5,001-10,000	4,539 contacts →
	Exact match “We are PCI Pharma Services.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Worldwide Clinical Trials	Exact match	Research Triangle Park, NC, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
11	Eversana	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
12	Revvity	Exact match	Waltham, MA, United StatesHQ recorded Oct 10, 2026	10001+	3,071 contacts →
	Exact match “At Revvity, “impossible” is inspiration, and ""can't be done"" is a call to action.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	CURIA	Exact match	Albany, NY, United StatesHQ recorded Oct 10, 2026	1,001-5,000	2,996 contacts →
	Exact match “Curia is a Contract Development and Manufacturing Organization with over 30 years of experience, an integrated network of 25 global sites and 3,500 employees partnering with…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	Premier Research	Exact match	Morrisville, NC, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
15	AGC Biologics	Exact match	Bothell, WA, United StatesHQ recorded Oct 10, 2026	1,001-5,000	2,440 contacts →
	Exact match “AGC Biologics is a leading global biopharmaceutical Contract Development and Manufacturing Organization (CDMO) with a strong commitment to delivering the highest standard of…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	Hovione	Exact match	East Windsor, NJ, United StatesHQ recorded Oct 10, 2026	1,001-5,000	2,330 contacts →
	Exact match “At Hovione, we help partners turn scientific innovation into medicines that reach patients around the world.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Phillips Medisize	Exact match	Hudson, WI, United StatesHQ recorded Oct 10, 2026	5,001-10,000	2,315 contacts →
	Exact match “As a contract development and manufacturing organization (CDMO), the world’s leading pharmaceutical, medtech and in vitro diagnostic companies trust us to help them design and…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Propharma	Exact match	Raleigh, NC, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
19	Signant Health	Exact match	Blue Bell, PA, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
20	Patheon	Exact match	Waltham, MA, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
21	Precision For Medicine	Exact match	Bethesda, MD, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
22	KBI Biopharma	Exact match	Durham, NC, United StatesHQ recorded Oct 10, 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 10, 2026 · View company records in RevenueBase
23	Trinity Life Sciences	Exact match	Waltham, MA, United StatesHQ recorded Oct 10, 2026	1,001-5,000	1,636 contacts →
	Exact match “Trinity is the commercialization intelligence partner for life sciences.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Eurofins Lancaster Laboratories	Exact match	Lancaster, PA, United StatesHQ recorded Oct 10, 2026	1,001-5,000	1,634 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 10, 2026 · View company records in RevenueBase
25	CYTEL	Exact match	Cambridge, MA, United StatesHQ recorded Oct 10, 2026	1,001-5,000	1,574 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 10, 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 “contract research organizations biotechnology 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 4,494 contract research organizations biotechnology companies based in the United States

See the full list, filter by size, metro and specialty, and access 159,564 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Contract research organizations biotechnology companies based in the United States at a glance

As of Oct 10, 2026

42.0%Verified-email coverage

84.5Average contacts per company

11-50Median size (employees)

3.9%Largest-city concentration · San Diego

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

2,123

11-50

1,329

51-200

611

201-500

199

501-1,000

1,001-5,000

103

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 4,494 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 “contract research organizations biotechnology 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. 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 159,564 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 10, 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.

Contract research organizations biotechnology companies by metro

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

How many contract research organizations biotechnology companies are there based in the United States?

RevenueBase identified 4,494 company matches for contract research organizations biotechnology companies 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 contract research organizations biotechnology companies?

San Diego leads with 175 company records, followed by Boston (115) and New York (103).

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 159,564 professional contacts with verified work emails tracked across these 4,494 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 10, 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.