Company lists · Data refreshed September 2026

Top 25 Drug development staffing firms based in the United States

Name: Drug development staffing 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 28, 2026 6,361 companies tracked

RevenueBase identified 6,361 company matches for drug development staffing firms associated with the United States as of September 2026 and tracks 268,055 professional contacts across them, including 79,283 with verified work emails. New York is the largest hub.

This list covers company matches for drug development staffing firms 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 September 28, 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 Sep 28, 2026 How this list was built

6,361Companies

268,055Contacts tracked

79,283Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest drug development staffing firms based in the United States

Ranked by team size

Top 25 of 6,361 company matches for drug development staffing firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	PPD	Exact match	Waltham, MA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
2	Fortrea	Exact match	Research Triangle Park, NC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3	Medpace	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	Covance	Exact match	Princeton, NJ, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	PCI Pharma Services	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	4,342 contacts →
	Exact match “We are PCI Pharma Services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Worldwide Clinical Trials	Exact match	Research Triangle Park, NC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7	Eversana	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8	Premier Research	Exact match	Morrisville, NC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
9	Propharma	Exact match	Raleigh, NC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
10	Patheon	Exact match	Waltham, MA, United StatesHQ recorded Sep 28, 2026	10001+	2,004 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 · Sep 28, 2026 · View company records in RevenueBase
11	Remedy Intelligent Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Sep 28, 2026	10001+	1,948 contacts →
	Exact match “Remedy Intelligent Staffing is a nationwide professional staffing organization with more than 50 years of recruiting and selection expertise to match job candidates with positions…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Soliant	Exact match	Peachtree Corners, GA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	1,910 contacts →
	Exact match “Soliant is a leader in human capital solutions within the education, healthcare, and pharmacy sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Addison Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,840 contacts →
	Exact match “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Precision For Medicine	Exact match	Bethesda, MD, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
15	MEDIX	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	1,753 contacts →
	Exact match “Medix provides workforce solutions to clients and creates opportunity for talent in the Healthcare, Life Sciences, Engineering and Technology fields.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	KBI Biopharma	Exact match	Durham, NC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,645 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 · Sep 28, 2026 · View company records in RevenueBase
17	Nesco Resource	Exact match	Mayfield Heights, OH, United StatesHQ recorded Sep 28, 2026	501-1,000	1,599 contacts →
	Exact match “Companies need talent.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Syneos Health Clinical Solutions	Exact match	Morrisville, NC, United StatesHQ recorded Sep 28, 2026	10001+	1,569 contacts →
	Exact match “Syneos Health® is a leading fully integrated biopharmaceutical solutions organization built to accelerate customer success.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Infotree Global Solutions	Exact match	Plymouth, MI, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,545 contacts →
	Exact match “Infotree Global was founded in 2002 in a small office in Canton, MI, Infotree Global had a clear mission; To bring the world’s best talent together with the greatest companies…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Triage Staffing Healthcare Staffing	Exact match	Omaha, NE, United StatesHQ recorded Sep 28, 2026	n/a	1,538 contacts →
	Exact match “In recruiting, stating actual facts has become: Foreign \| Uncommon \| Taboo.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Clinchoice	Exact match	Horsham, PA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
22	ALKU	Exact match	Andover, MA, United StatesHQ recorded Sep 28, 2026	201-500	1,480 contacts →
	Exact match “ALKU® is a highly specialized consulting services firm focused on deploying highly skilled consulting resources in the areas of Technologies, HCIT, Life Sciences, and Government…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	ASK Consulting	Exact match	Alpharetta, GA, United StatesHQ recorded Sep 28, 2026	501-1,000	1,296 contacts →
	Exact match “ASK Consulting is an award-winning technology and professional services recruiting firm servicing Fortune 500 organizations nationally.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Cambrex	Exact match	East Rutherford, NJ, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,294 contacts →
	Exact match “Cambrex is a leading global contract development and manufacturing organization (CDMO) that provides drug substance development and manufacturing across the entire drug lifecycle…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	GHR Healthcare	Exact match	Blue Bell, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,241 contacts →
	Exact match “For over 30 years, GHR Healthcare has been the bridge between healthcare professionals and the facilities that need them.” Recorded in the RevenueBase company graph · Sep 28, 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 “drug development staffing firms”. 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 6,361 drug development staffing firms based in the United States

See the full list, filter by size, metro and specialty, and access 79,283 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Drug development staffing firms based in the United States at a glance

As of Sep 28, 2026

29.6%Verified-email coverage

42.1Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,036

11-50

1,760

51-200

937

201-500

330

501-1,000

135

1,001-5,000

110

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 6,361 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 “drug development staffing firms” 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 79,283 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 28, 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.

Drug development staffing firms 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 “drug development staffing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many drug development staffing firms are there based in the United States?

RevenueBase identified 6,361 company matches for drug development staffing firms associated with the United States 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?

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

Which city has the most drug development staffing firms?

New York leads with 244 company records, followed by Boston (138) and San Diego (135).

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 79,283 professional contacts with verified work emails tracked across these 6,361 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 6,361 drug development staffing firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Drug development staffing firms by geography

Browse the directory

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.