Company lists · Data refreshed September 2026

Top 13 Patient recruitment services based in the Netherlands

RevenueBase identified 26 patient recruitment services headquartered in the Netherlands as of September 2026 and tracks 899 professional contacts across them, including 517 with verified work emails. Amsterdam is the largest hub.

This list covers patient recruitment services headquartered in the Netherlands, 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 14, 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 14, 2026 86% judged on-target in blind review
26Companies
899Contacts tracked
517Verified emails
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The 13 largest patient recruitment services based in the Netherlands

Ranked by team size
Top 13 of 26 patient recruitment services based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to patient recruitment services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLeiden, NetherlandsHQ checked Sep 14, 2026201-500367 contacts →

Indirect evidence

“The CRO for data-intensive, early phase clinical studies.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceZeist, NetherlandsHQ checked Sep 14, 2026201-500185 contacts →

Indirect evidence

“P95 Julius Clinical is a global, science-led contract research organization (CRO) supporting clinical development from early-phase trials through late-phase and real-world…”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 14, 202651-200137 contacts →

Indirect evidence

“Our mission is to enable earlier and better access to all possible treatment options.”

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceGroningen, NetherlandsHQ checked Sep 14, 202651-20027 contacts →

Partial evidence

“Biokinetica Early Phase Institute is a specialized clinical research unit conducting early phase studies in both healthy volunteers and patient populations.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceNorg, NetherlandsHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“Personal business, Personal touch-that’s what sets us apart for our clients but also the site staff.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceRoosendaal, NetherlandsHQ checked Sep 14, 202611-5012 contacts →

Indirect evidence

“For 25 years, Siron Clinical has been a leading provider of flexible, high-quality CRO services across Europe, Israel, and Turkey.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceLosser, NetherlandsHQ checked Sep 14, 202611-5010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
8Strong evidenceHilversum, NetherlandsHQ checked Sep 14, 202611-509 contacts →

Strong evidence

“Link2Trials offers patient pre-selection, recruitment, and adherence support services for clinical trials.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceLelystad, NetherlandsHQ checked Sep 14, 202611-508 contacts →

Indirect evidence

“BMclinical is a subsidiary of the BModesto Group which is part of the Uniphar Group.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceGroningen, NetherlandsHQ checked Sep 14, 20261-108 contacts →

Indirect evidence

“DELPHINIUM is a dedicated and dynamic company, comprised of experienced professionals committed to Phase I clinical pharmacology.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceHoofddorp, NetherlandsHQ checked Sep 14, 202611-506 contacts →

Indirect evidence

“We’ve moved!”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

“Medex15 offers medical and clinical expertise to pharmaceutical and biotech companies, and investigators.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceMeppel, NetherlandsHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Service Provider for your Clinical Monitoring needs”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 13 of 26 patient recruitment services based in the Netherlands

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Patient recruitment services based in the Netherlands at a glance

As of Sep 14, 2026
57.5%Verified-email coverage
34.6Average contacts per company
11-50Median size (employees)
7.7%Largest-city concentration · Amsterdam
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
8
51-200
4
201-500
3
501-1,000
1

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 26 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 patient recruitment services, 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 Netherlands whose own description of what they do matches “patient recruitment services”. 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 patient recruitment services), 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 patient recruitment services, and records with no verified work email. Companies headquartered outside Netherlands 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, 517 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 14, 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.

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 patient recruitment services, 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 patient recruitment services are there based in the Netherlands?

RevenueBase identified 26 patient recruitment services headquartered in the Netherlands 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?

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

Which city has the most patient recruitment services?

Amsterdam leads with 2 headquartered companies, followed by Groningen (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 517 verified decision-maker contacts tracked across these 26 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 14, 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.