Company lists · Data refreshed September 2026

Top 18 Clinical trial law firms based in the Netherlands

RevenueBase identified 45 clinical trial law firms headquartered in the Netherlands as of September 2026 and tracks 728 professional contacts across them, including 392 with verified work emails. Amsterdam is the largest hub.

This list covers clinical trial law firms 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 27, 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 27, 2026 86% judged on-target in blind review
45Companies
728Contacts tracked
392Verified emails
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The 18 largest clinical trial law firms based in the Netherlands

Ranked by team size
Top 18 of 45 clinical trial law firms based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to clinical trial law firms: 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
1Partial evidenceLeiden, NetherlandsHQ checked Sep 27, 2026201-500367 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
2Strong evidenceArnhem, NetherlandsHQ checked Sep 27, 202651-20077 contacts →

Strong evidence

“Qserve is a trusted global partner for MedTech Regulatory, Clinical, and Quality Compliance, as well as a full-service CRO for medical device clinical trials.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceOss, NetherlandsHQ checked Sep 27, 202611-5034 contacts →

Indirect evidence

“Zwiers Regulatory Consultancy, now part of ProductLife Group, offers end-to-end regulatory support from early development to post-marketing compliance.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceSchiphol-rijk, NetherlandsHQ checked Sep 27, 202651-20034 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceMaarssen, NetherlandsHQ checked Sep 27, 202651-20022 contacts →

Indirect evidence

“CR2O is a full-service Contract Research Organization.”

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidenceZeist, NetherlandsHQ checked Sep 27, 202611-5015 contacts →

Strong evidence

“Salvius Legal is limited liability company providing legal support to the pharmaceutical, biotech and clinical trial industry.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceNorg, NetherlandsHQ checked Sep 27, 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 27, 2026
8Partial evidenceRoosendaal, NetherlandsHQ checked Sep 27, 202611-5012 contacts →

Partial 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 27, 2026
9Indirect evidenceLelystad, NetherlandsHQ checked Sep 27, 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 27, 2026
10Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 202651-2008 contacts →

Indirect evidence

“RegPak BioPharma is an Amsterdam based full service Regulatory Affairs Consultancy with the key objective of providing high quality services within Regulatory Affairs, Licensing…”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceHoofddorp, NetherlandsHQ checked Sep 27, 202611-506 contacts →

Indirect evidence

“We’ve moved!”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“J&S Preclinical Solutions is a consulting firm specializing in preclinical pharmacology and toxicology.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceWeert, NetherlandsHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

“De Peel Letselschade is een vooruitstrevend advocatenkantoor gevestigd tegenover het station in Weert.”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceAmsterdam, NetherlandsHQ checked Sep 27, 20261-104 contacts →

Partial evidence

“Leading pharma & biotech law firm in Amsterdam”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceAmsterdam, NetherlandsHQ checked Sep 27, 20261-103 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceMeppel, NetherlandsHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Service Provider for your Clinical Monitoring needs”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceRotterdam, NetherlandsHQ checked Sep 27, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceDuivendrecht, NetherlandsHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“Pharma Advice & Solutions is an independent consulting company which offers, along with its key partners, a fully comprehensive platform to support the medical and pharmaceutical…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 18 of 45 clinical trial law firms based in the Netherlands

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Clinical trial law firms based in the Netherlands at a glance

As of Sep 27, 2026
53.8%Verified-email coverage
16.2Average contacts per company
1-10Median size (employees)
13.3%Largest-city concentration · Amsterdam
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
7
51-200
7
201-500
1
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 45 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 clinical trial law firms, 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 “clinical trial law firms”. 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 clinical trial law firms), 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 clinical trial law firms, 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, 392 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 27, 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 clinical trial law firms, 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 clinical trial law firms are there based in the Netherlands?

RevenueBase identified 45 clinical trial law firms 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 clinical trial law firms?

Amsterdam leads with 6 headquartered companies, followed by Aa (2) and Arnhem (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 392 verified decision-maker contacts tracked across these 45 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 27, 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.