Company lists · Data verified August 2026

Top 20 Clinical trial staffing based in the Netherlands

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 41 companies tracked

There are 41 clinical trial staffing headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 861 professional contacts across them, including 406 with verified work emails and 53 with mobile numbers. Rotterdam is the largest hub.

This list covers clinical trial staffing 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.

41Companies

861Contacts tracked

406Verified emails

53Mobile numbers

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The 20 largest clinical trial staffing based in the Netherlands

Ranked by team size

Top 20 of 41 clinical trial staffing 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	Centre For Human Drug Research	n/a	201-500	364	230
2	Castor	Ee	201-500	131	65
3	Sire Life Sciences	Mk	201-500	88	35
4	Icon Clinical Research U.K. LTD	Schiphol-Rijk	51-200	34	10
5	SMELT	Hilversum	11-50	27	2
6	Cr2o Clinical CRO	Maarssen	51-200	21	13
7	Clinichain B.V	Almere	11-50	19	14
8	Research Drive BV	Aa	11-50	13	5
9	Clinical Trial Service B.V	Es	11-50	10	5
10	Bmclinical	Lelystad	11-50	8	7
11	Link2trials	Hilversum	11-50	8	4
12	Delphinium	Groningen	1-10	8	4
13	PSR Orphan Experts NOW Ergomed	Hoofddorp	11-50	6	4
14	Bluecollar	Nijmegen	51-200	6	2
15	Geronimo Consultancy	Baarn	1-10	3	1
16	Sourcia	Zevenbergen	1-10	2	1
17	The Clinical Monitor	Meppel	1-10	2	1
18	Pharmaceutical Advice Consultancy PAC BV	Rotterdam	1-10	2	1
19	The Health Scientist	The Hague	1-10	1	1
20	Thomas Watson B.V	Amstelveen	1-10	1	1

Showing 20 of 41 clinical trial staffing based in the Netherlands

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Clinical trial staffing based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

RotterdamLargest hub · 3 HQs

53Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Clinical trial staffing by metro

Metro	Companies
Clinical trial staffing in Rotterdam	3
Clinical trial staffing in Nijmegen	2
Clinical trial staffing in Lelystad	2
Clinical trial staffing in Amsterdam	2
Clinical trial staffing in Utrecht	2
Clinical trial staffing in Hilversum	2
Clinical trial staffing in Almere	2

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 staffing”, 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; 3 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 staffing are there based in the Netherlands?

There are 41 clinical trial staffing headquartered in the Netherlands as of August 2026 (RevenueBase).

What is the largest company on this list?

Centre For Human Drug Research, headquartered in Netherlands, tops this list with the largest team on record.

Which city has the most clinical trial staffing?

Rotterdam leads with 3 headquartered companies, followed by Nijmegen (2) and Lelystad (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 406 verified decision-maker contacts tracked across these 41 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.