Company lists · Data refreshed September 2026

Top 25 Medical research recruitment companies worldwide

Name: Medical research recruitment companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 8,580 companies tracked

RevenueBase identified 8,580 medical research recruitment companies worldwide as of September 2026 and tracks 255,401 professional contacts across them, including 87,016 with verified work emails. The United States is the largest market and London the largest hub.

This list covers medical research recruitment companies worldwide, 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 28, 2026. Country and city lists for medical research recruitment companies follow the table.

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 28, 2026 86% judged on-target in blind review

8,580Companies

255,401Contacts tracked

87,016Verified emails

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The 25 largest medical research recruitment companies worldwide

Ranked by team size

Top 25 of 8,580 medical research recruitment companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to medical research recruitment companies: 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	IQVIA	Partial evidence	Durham, NC, United StatesHQ checked Sep 28, 2026	10001+	63,824 contacts →
	Partial evidence “IQVIA (NYSE:IQV) is a leading global provider of clinical research services, commercial insights and healthcare intelligence to the life sciences and healthcare industries.” Source: RevenueBase Database · checked Sep 28, 2026
2	PPD	Partial evidence	Waltham, MA, United StatesHQ checked Sep 28, 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 28, 2026
3	Premier Research	Partial evidence	Morrisville, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,584 contacts →
	Partial 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 28, 2026
4	PSI CRO	Partial evidence	Zug, SwitzerlandHQ checked Sep 28, 2026	1,001-5,000	2,494 contacts →
	Partial evidence “PSI is a leading full-service global Contract Research Organization whose key strength is predictable patient enrollment across multiple therapeutic areas.” Source: RevenueBase Database · checked Sep 28, 2026
5	Propharma	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,079 contacts →
	Partial evidence “At ProPharma, we help pharmaceutical, biotechnology, and medical device companies bring life-changing therapies to market.” Source: RevenueBase Database · checked Sep 28, 2026
6	Precision For Medicine	Strong evidence	Bethesda, MD, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,781 contacts →
	Strong 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 28, 2026
7	Novotech	Partial evidence	Singapore, AustraliaHQ checked Sep 28, 2026	1,001-5,000	1,778 contacts →
	Partial evidence “Novotech is a globally recognized full-service clinical research organization (CRO) and scientific advisory company that provides biotech and small- to mid-sized pharma companies…” Source: RevenueBase Database · checked Sep 28, 2026
8	Cliantha Research Limited	Partial evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,612 contacts →
	Partial evidence “Cliantha Research, full-service clinical research organization (CRO), provides comprehensive and integrated offerings in Early Phase (BA/BE and Phase I) trials, Late Phase (Phase…” Source: RevenueBase Database · checked Sep 28, 2026
9	Triage Staffing Healthcare Staffing	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 28, 2026	n/a	1,538 contacts →
	Indirect evidence “In recruiting, stating actual facts has become: Foreign \| Uncommon \| Taboo.” Source: RevenueBase Database · checked Sep 28, 2026
10	Adecco Medical	Partial evidence	Villeurbanne, FranceHQ checked Sep 28, 2026	201-500	1,493 contacts →
	Partial evidence “Adecco Medical est le leader des solutions emploi des professionnels de la santé : Infirmier, IADE, IBODE, aide-soignant, Kinésithérapeute, Pharmacien, Ergothérapeute, Médecin, ….” Source: RevenueBase Database · checked Sep 28, 2026
11	Veeda Lifesciences	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	501-1,000	1,320 contacts →
	Indirect evidence “We partner with innovator and generic companies using our high-quality infrastructure and a global network of clinical trial sites, to launch novel therapies and new products for…” Source: RevenueBase Database · checked Sep 28, 2026
12	Perceptive INC	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,197 contacts →
	Partial evidence “Expanding on their combined 50-year history, Perceptive provides best-in-class specialist support to global pharmaceutical, biotech, and clinical research organizations, spanning…” Source: RevenueBase Database · checked Sep 28, 2026
13	Planet Pharma	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,088 contacts →
	Strong evidence “Founded in 2012, Planet Pharma is a global leader in life sciences recruitment and staffing, specializing in Pharmaceuticals, Biotechnology, Medical Device, Labs & Healthcare…” Source: RevenueBase Database · checked Sep 28, 2026
14	CTI Clinical Trial And Consulting Services	Partial evidence	Covington, KY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,043 contacts →
	Partial 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 28, 2026
15	Inotiv	Partial evidence	West Lafayette, IN, United StatesHQ checked Sep 28, 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 28, 2026
16	Navitas Life Sciences	Partial evidence	Gaithersburg, MD, United StatesHQ checked Sep 28, 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 28, 2026
17	Velocity Clinical Research, INC	Partial evidence	Durham, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	971 contacts →
	Partial evidence “Velocity is the world’s leading organization of fully integrated clinical research sites.” Source: RevenueBase Database · checked Sep 28, 2026
18	EMMES	Partial evidence	Rockville, MD, United StatesHQ checked Sep 28, 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 28, 2026
19	Medacs Healthcare	Partial evidence	Uk, United KingdomHQ checked Sep 28, 2026	501-1,000	926 contacts →
	Partial evidence “Medacs Healthcare is part of MGG Health, a global healthcare staffing company providing temporary and permanent recruitment opportunities to doctors, nurses, carers and allied…” Source: RevenueBase Database · checked Sep 28, 2026
20	Bioagilytix	Partial evidence	Durham, NC, United StatesHQ checked Sep 28, 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 28, 2026
21	Cenexel	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 28, 2026	1,001-5,000	847 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
22	MMG	Partial evidence	Rockville, MD, United StatesHQ checked Sep 28, 2026	n/a	770 contacts →
	Partial evidence “MMG is a full-service global health communications group that specializes in patient recruitment and retention.” Source: RevenueBase Database · checked Sep 28, 2026
23	Caidya	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	758 contacts →
	Partial evidence “Caidya is a multi-therapeutic clinical research organization (CRO) serving innovators worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
24	TFS Healthscience	Partial evidence	Lund, SwedenHQ checked Sep 28, 2026	501-1,000	735 contacts →
	Partial evidence “TFS HealthScience is a full-service, global Contract Research Organization (CRO) that partners with biotechnology and pharmaceutical companies to advance innovative treatments and…” Source: RevenueBase Database · checked Sep 28, 2026
25	RHO	Indirect evidence	Durham, NC, United StatesHQ checked Sep 28, 2026	501-1,000	732 contacts →
	Indirect evidence “Experience the Cohesion Effect.” Source: RevenueBase Database · checked Sep 28, 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: medical research recruitment companies. 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 medical research recruitment companies.
Partial evidence: Its own public description names part of medical research recruitment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name medical research recruitment companies. 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 8,580 medical research recruitment companies worldwide

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Medical research recruitment companies worldwide at a glance

As of Sep 28, 2026

34.1%Verified-email coverage

29.8Average contacts per company

1-10Median size (employees)

5.1%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

4,577

11-50

2,622

51-200

911

201-500

255

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 medical research recruitment companies, 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.
Coverage: Every country. Country and city lists for medical research recruitment companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “medical research recruitment companies”. 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 medical research recruitment companies), 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 medical research recruitment companies, and records with no verified work email.
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, 87,016 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 28, 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.

Medical research recruitment companies by location

52 lists · largest first

Every Medical research recruitment companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 medical research recruitment companies, 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 medical research recruitment companies are there worldwide?

RevenueBase identified 8,580 medical research recruitment companies worldwide 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?

IQVIA, headquartered in Durham, tops this list with the largest team on record.

Which country has the most medical research recruitment companies?

The United States leads with 2,698 companies, followed by the United Kingdom (1,261) and India (509). Every medical research recruitment companies list by country and city is linked on this page.

Which city has the most medical research recruitment companies?

London leads with 435 headquartered companies, followed by New York (91) and Paris (88).

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 87,016 verified decision-maker contacts tracked across these 8,580 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 28, 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.