Company lists · Data verified August 2026

Top 15 Clinical trial recruitment firms based in the Netherlands

Name: Clinical trial recruitment firms based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 35 companies tracked

There are 35 clinical trial recruitment firms headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 1,376 professional contacts across them, including 787 with verified work emails and 134 with mobile numbers. Rotterdam is the largest hub.

This list covers clinical trial recruitment firms headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

35Companies

1,376Contacts tracked

787Verified emails

134Mobile numbers

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The 15 largest clinical trial recruitment firms based in the Netherlands

Ranked by team size

Top 15 of 35 clinical trial recruitment firms based in the Netherlands, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Alimentiv	Amsterdam	501-1,000	616	421
2	Centre For Human Drug Research	n/a	201-500	364	230
3	Castor	Ee	201-500	131	65
4	Icon Clinical Research U.K. LTD	Schiphol-Rijk	51-200	34	10
5	Cr2o Clinical CRO	Maarssen	51-200	21	13
6	Clinichain B.V	Almere	11-50	19	14
7	Research Drive BV	Aa	11-50	13	5
8	Clinical Trial Service B.V	Es	11-50	10	5
9	Bmclinical	Lelystad	11-50	8	7
10	Link2trials	Hilversum	11-50	8	4
11	Delphinium	Groningen	1-10	8	4
12	PSR Orphan Experts NOW Ergomed	Hoofddorp	11-50	6	4
13	Applied Clinical Services BV	Arnhem	1-10	5	3
14	The Clinical Monitor	Meppel	1-10	2	1
15	The Health Scientist	The Hague	1-10	1	1

Showing 15 of 35 clinical trial recruitment firms based in the Netherlands

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Clinical trial recruitment firms based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

RotterdamLargest hub · 3 HQs

134Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Clinical trial recruitment firms by metro

Metro	Companies
Clinical trial recruitment firms in Rotterdam	3
Clinical trial recruitment firms in Lelystad	2
Clinical trial recruitment firms in Hoofddorp	2
Clinical trial recruitment firms in Amsterdam	2
Clinical trial recruitment firms in Meppel	1
Clinical trial recruitment firms in Zeist	1
Clinical trial recruitment firms in Arnhem	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “clinical trial recruitment firms”, with match quality audited by blind human judging, and headquartered in the Netherlands.
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: Contact records re-verify on a rolling cadence; 4 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many clinical trial recruitment firms are there based in the Netherlands?

There are 35 clinical trial recruitment firms headquartered in the Netherlands as of August 2026 (RevenueBase).

What is the largest company on this list?

Alimentiv, headquartered in Amsterdam, tops this list with the largest team on record.

Which city has the most clinical trial recruitment firms?

Rotterdam leads with 3 headquartered companies, followed by Lelystad (2) and Hoofddorp (2).

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 787 verified decision-maker contacts tracked across these 35 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.