Company lists · Data refreshed September 2026

Top 25 Preclinical research consulting firms based in the United States

Name: Preclinical research consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 3,672 companies tracked

RevenueBase identified 3,672 preclinical research consulting firms headquartered in the United States as of September 2026 and tracks 139,836 professional contacts across them, including 61,814 with verified work emails. Boston is the largest hub.

This list covers preclinical research consulting firms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

3,672Companies

139,836Contacts tracked

61,814Verified emails

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The 25 largest preclinical research consulting firms based in the United States

Ranked by team size

Top 25 of 3,672 preclinical research consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to preclinical research consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	PPD	Partial evidence	Waltham, MA, United StatesHQ checked Sep 29, 2026	10001+	20,530 contacts →
	Partial evidence “The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Source: RevenueBase Database · checked Sep 29, 2026
2	Fortrea	Partial evidence	Research Triangle Park, NC, United StatesHQ checked Sep 29, 2026	10001+	10,632 contacts →
	Partial evidence “Fortrea (Nasdaq: FTRE) is a leading global clinical research organization (CRO) dedicated to providing innovative clinical development solutions to the life sciences industry.” Source: RevenueBase Database · checked Sep 29, 2026
3	Medpace	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 29, 2026	5,001-10,000	5,960 contacts →
	Partial evidence “Medpace is a scientifically-driven, global, full-service clinical contract research organization (CRO) providing Phase I-IV clinical development services to the biotechnology…” Source: RevenueBase Database · checked Sep 29, 2026
4	Covance	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 29, 2026	10001+	5,220 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
5	Worldwide Clinical Trials	Indirect evidence	Research Triangle Park, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,440 contacts →
	Indirect evidence “Worldwide Clinical Trials (Worldwide) is a global CRO serving development-driven biopharmaceutical companies, with more than 4,400 professionals operating across more than 70…” Source: RevenueBase Database · checked Sep 29, 2026
6	Premier Research	Strong evidence	Morrisville, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,584 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
7	Signant Health	Partial evidence	Blue Bell, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,083 contacts →
	Partial evidence “For 25+ years, Signant Health has been pioneering solutions and methodologies that propel clinical research programs toward regulatory success.” Source: RevenueBase Database · checked Sep 29, 2026
8	Propharma	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,079 contacts →
	Indirect evidence “At ProPharma, we help pharmaceutical, biotechnology, and medical device companies bring life-changing therapies to market.” Source: RevenueBase Database · checked Sep 29, 2026
9	Precision For Medicine	Partial evidence	Bethesda, MD, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,781 contacts →
	Partial evidence “Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…” Source: RevenueBase Database · checked Sep 29, 2026
10	KBI Biopharma	Indirect evidence	Durham, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,645 contacts →
	Indirect evidence “KBI Biopharma is an award-winning biopharmaceutical contract services organization providing fully-integrated, accelerated drug development and biomanufacturing services to…” Source: RevenueBase Database · checked Sep 29, 2026
11	CYTEL	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,580 contacts →
	Indirect evidence “Cytel is the world’s leading data-science CRO, driving advancements in human health through robust analytics and innovative clinical trial software.” Source: RevenueBase Database · checked Sep 29, 2026
12	Trinity Life Sciences	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,566 contacts →
	Indirect evidence “Trinity is the commercialization intelligence partner for life sciences.” Source: RevenueBase Database · checked Sep 29, 2026
13	INC Research	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 29, 2026	10001+	1,123 contacts →
	Partial evidence “INC Research/inVentiv Health has become Syneos Health, the only fully integrated end-to-end clinical and commercial solution organization.” Source: RevenueBase Database · checked Sep 29, 2026
14	Celerion	Partial evidence	Lincoln, NE, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,080 contacts →
	Partial evidence “Celerion, a leader in early clinical research, delivers Applied Translational Medicine.” Source: RevenueBase Database · checked Sep 29, 2026
15	CTI Clinical Trial And Consulting Services	Strong evidence	Covington, KY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,043 contacts →
	Strong evidence “CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…” Source: RevenueBase Database · checked Sep 29, 2026
16	Inotiv	Partial evidence	West Lafayette, IN, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,015 contacts →
	Partial evidence “WHERE INSIGHTS LEAD TO ANSWERS Expect More In choosing a partner for discovery, development and research models, expect more: more attention, more insight, and a superlative…” Source: RevenueBase Database · checked Sep 29, 2026
17	Navitas Life Sciences	Partial evidence	Gaithersburg, MD, United StatesHQ checked Sep 29, 2026	1,001-5,000	990 contacts →
	Partial evidence “Navitas Life Sciences is a global Clinical Research partner with over 35 years of expertise in Clinical, Regulatory, Safety, and Data Management solutions.” Source: RevenueBase Database · checked Sep 29, 2026
18	Allucent	Indirect evidence	Cary, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	977 contacts →
	Indirect evidence “Allucent is on a mission to help bring new therapies to light by solving the distinct challenges of small and mid-sized biotech companies.” Source: RevenueBase Database · checked Sep 29, 2026
19	Pharmaace	Partial evidence	Princeton, NJ, United StatesHQ checked Sep 29, 2026	1,001-5,000	969 contacts →
	Partial evidence “PharmaACE is a US-headquartered, life sciences-focused consulting and analytics firm with a global presence across the United States, Germany, Canada, and India.” Source: RevenueBase Database · checked Sep 29, 2026
20	EMMES	Partial evidence	Rockville, MD, United StatesHQ checked Sep 29, 2026	1,001-5,000	961 contacts →
	Partial evidence “Emmes is a Contract Research Organization delivering complex clinical trials through therapeutic expertise, scientific rigor, and technology-enabled execution.” Source: RevenueBase Database · checked Sep 29, 2026
21	Advanced Clinical	Indirect evidence	Deerfield, IL, United StatesHQ checked Sep 29, 2026	501-1,000	960 contacts →
	Indirect evidence “Advanced Clinical is a clinical development and strategic resourcing organization committed to providing a better clinical experience across the drug development journey.” Source: RevenueBase Database · checked Sep 29, 2026
22	Bioagilytix	Partial evidence	Durham, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	915 contacts →
	Partial evidence “BioAgilytix is a leading global contract research organization focused on supporting pharmaceutical and biotech partners in all phases of drug development.” Source: RevenueBase Database · checked Sep 29, 2026
23	Excelra	Indirect evidence	Iselin, NJ, United StatesHQ checked Sep 29, 2026	501-1,000	894 contacts →
	Indirect evidence “Discover how Excelra, a leader in biopharma data and analytics, uniquely blends scientific understanding with technological expertise.” Source: RevenueBase Database · checked Sep 29, 2026
24	MMS	Partial evidence	Canton, MI, United StatesHQ checked Sep 29, 2026	501-1,000	876 contacts →
	Partial evidence “MMS Holdings (MMS) is an award-winning, data-focused clinical research organization (CRO) that supports the pharmaceutical and biotech industries with a proven, scientific…” Source: RevenueBase Database · checked Sep 29, 2026
25	Agilisium Consulting	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	862 contacts →
	Partial evidence “Agilisium – The World's First Life Sciences Context-Centric AI Consulting & Services Company, from Molecule to Market.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: preclinical research consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names preclinical research consulting firms.
Partial evidence: Its own public description names part of preclinical research consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name preclinical research consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 3,672 preclinical research consulting firms based in the United States

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Preclinical research consulting firms based in the United States at a glance

As of Sep 29, 2026

44.2%Verified-email coverage

38.1Average contacts per company

1-10Median size (employees)

3.4%Largest-city concentration · Boston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

2,239

11-50

898

51-200

338

201-500

501-1,000

1,001-5,000

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 3,672 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among preclinical research consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “preclinical research consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names preclinical research consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among preclinical research consulting firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 61,814 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Preclinical research consulting firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names preclinical research consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many preclinical research consulting firms are there based in the United States?

RevenueBase identified 3,672 preclinical research consulting firms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

PPD, headquartered in Waltham, tops this list with the largest team on record.

Which city has the most preclinical research consulting firms?

Boston leads with 126 headquartered companies, followed by San Diego (112) and New York (110).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 61,814 verified decision-maker contacts tracked across these 3,672 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.