Company lists · Data refreshed September 2026

Top 25 Pharmaceutical contract research organizations based in the Netherlands

Name: Pharmaceutical contract research organizations based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 138 companies tracked

RevenueBase identified 138 pharmaceutical contract research organizations headquartered in the Netherlands as of September 2026 and tracks 2,864 professional contacts across them, including 1,393 with verified work emails. Amsterdam is the largest hub.

This list covers pharmaceutical contract research organizations 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 17, 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 17, 2026 86% judged on-target in blind review

138Companies

2,864Contacts tracked

1,393Verified emails

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The 25 largest pharmaceutical contract research organizations based in the Netherlands

Ranked by team size

Top 25 of 138 pharmaceutical contract research organizations based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical contract research organizations: 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	Symeres	Strong evidence	Nijmegen, NetherlandsHQ checked Sep 17, 2026	501-1,000	377 contacts →
	Strong evidence “Symeres is a leading contract research, development and manufacturing organization (CDMO & CRO) supporting pharmaceutical and biotechnology companies across the full drug…” Source: RevenueBase Database · checked Sep 17, 2026
2	Centre For Human Drug Research	Indirect evidence	Leiden, NetherlandsHQ checked Sep 17, 2026	201-500	367 contacts →
	Indirect evidence “The CRO for data-intensive, early phase clinical studies.” Source: RevenueBase Database · checked Sep 17, 2026
3	Julius Clinical	Strong evidence	Zeist, NetherlandsHQ checked Sep 17, 2026	201-500	185 contacts →
	Strong 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 17, 2026
4	Tjoapack	Strong evidence	Etten Leur, NetherlandsHQ checked Sep 17, 2026	201-500	161 contacts →
	Strong evidence “Tjoapack is a EU-GMP and FDA certified global contract packaging organization (CPO) specializing in primary and secondary pharmaceutical packaging and supply chain management…” Source: RevenueBase Database · checked Sep 17, 2026
5	NIZO	Strong evidence	Ede, NetherlandsHQ checked Sep 17, 2026	51-200	112 contacts →
	Strong evidence “NIZO is one of the most renowned contract research organisations for better food and health in the world.” Source: RevenueBase Database · checked Sep 17, 2026
6	Delpharm Meppel	Indirect evidence	Meppel, NetherlandsHQ checked Sep 17, 2026	201-500	101 contacts →
	Indirect evidence “DELPHARM, al meer dan drie decennia een prominente speler in de markt van uitbestede geneesmiddelenproductie, heeft zijn verkoop gestaag zien toenemen tot 1,1 miljard euro en…” Source: RevenueBase Database · checked Sep 17, 2026
7	Triskelion	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 17, 2026	51-200	89 contacts →
	Indirect evidence “Safe and compliant.” Source: RevenueBase Database · checked Sep 17, 2026
8	Sire Life Sciences	Indirect evidence	Leiden, NetherlandsHQ checked Sep 17, 2026	201-500	88 contacts →
	Indirect evidence “SIRE® Life Sciences is the market-leading partner for Life Sciences consultancy, project management, and secondment services in the Netherlands.” Source: RevenueBase Database · checked Sep 17, 2026
9	Bioconnection	Strong evidence	Oss, NetherlandsHQ checked Sep 17, 2026	51-200	78 contacts →
	Strong evidence “BioConnection (BCO) is a specialized contract manufacturing organization (specialized CMO) serving the pharmaceutical industry.” Source: RevenueBase Database · checked Sep 17, 2026
10	Qserve Group	Indirect evidence	Arnhem, NetherlandsHQ checked Sep 17, 2026	51-200	77 contacts →
	Indirect 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 17, 2026
11	HALIX	Indirect evidence	Leiden, NetherlandsHQ checked Sep 17, 2026	51-200	53 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
12	Ofichem Group	Indirect evidence	Ter Apel, NetherlandsHQ checked Sep 17, 2026	51-200	38 contacts →
	Indirect evidence “Ofichem is a European-centred CDMO that pharma teams count on for flexible, reliable supply.” Source: RevenueBase Database · checked Sep 17, 2026
13	Icon Clinical Research U.K. LTD	Indirect evidence	Schiphol-rijk, NetherlandsHQ checked Sep 17, 2026	51-200	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	Pharmo Institute, Part Of Lumanity	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 17, 2026	11-50	30 contacts →
	Indirect evidence “The PHARMO Institute, part of Lumanity, uses data to derive real-life insights into value of medicines.” Source: RevenueBase Database · checked Sep 17, 2026
15	DWISE	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 17, 2026	11-50	27 contacts →
	Partial evidence “The premium research services delivered by DWise provide a unique approach to outsourced research & data transformation for technology companies, research agencies & corporate…” Source: RevenueBase Database · checked Sep 17, 2026
16	OCS Life Sciences	Indirect evidence	S-hertogenbosch, NetherlandsHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence “OCS Life Sciences is a specialist business unit of OCS Consulting in the Netherlands that focuses on bringing high-value expertise and services to its life sciences clients.” Source: RevenueBase Database · checked Sep 17, 2026
17	Peregrion	Indirect evidence	Leiden, NetherlandsHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “Peregrion is a specialized CRO that supports the acceleration and de-risking of drug development programs.” Source: RevenueBase Database · checked Sep 17, 2026
18	Cr2o Clinical CRO	Strong evidence	Maarssen, NetherlandsHQ checked Sep 17, 2026	51-200	22 contacts →
	Strong evidence “CR2O is a full-service Contract Research Organization.” Source: RevenueBase Database · checked Sep 17, 2026
19	Mercachemsyncom	Strong evidence	Nijmegen, NetherlandsHQ checked Sep 17, 2026	201-500	19 contacts →
	Strong evidence “Symeres is the leading mid-sized European Contract Research Organization for your drug-discovery and development challenges.” Source: RevenueBase Database · checked Sep 17, 2026
20	Researchmanager	Partial evidence	Deventer, NetherlandsHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “At ResearchManager, we believe in a world where everyone has the chance to live a healthier, longer life.” Source: RevenueBase Database · checked Sep 17, 2026
21	Salvius Legal B.V	Partial evidence	Zeist, NetherlandsHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “Salvius Legal is limited liability company providing legal support to the pharmaceutical, biotech and clinical trial industry.” Source: RevenueBase Database · checked Sep 17, 2026
22	Bevinced	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 17, 2026	11-50	14 contacts →
	Partial evidence “BeVinced is a small niche Clinical Research Organization (CRO) with solid expertise in medical devices.” Source: RevenueBase Database · checked Sep 17, 2026
23	Research Drive BV	Indirect evidence	Norg, NetherlandsHQ checked Sep 17, 2026	11-50	13 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 17, 2026
24	DGR Pharma	Indirect evidence	Breda, NetherlandsHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “DGr Pharma provides consultancy support in early phase drug development with a focus on PK, Clinical Pharmacology, CMC, Regulatory Affairs and IT support.” Source: RevenueBase Database · checked Sep 17, 2026
25	Siron Clinical	Indirect evidence	Roosendaal, NetherlandsHQ checked Sep 17, 2026	11-50	12 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 17, 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: pharmaceutical contract research organizations. 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 pharmaceutical contract research organizations.
Partial evidence: Its own public description names part of pharmaceutical contract research organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pharmaceutical contract research organizations. 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 138 pharmaceutical contract research organizations based in the Netherlands

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Pharmaceutical contract research organizations based in the Netherlands at a glance

As of Sep 17, 2026

48.6%Verified-email coverage

20.8Average contacts per company

1-10Median size (employees)

8.0%Largest-city concentration · Amsterdam

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 138 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 pharmaceutical contract research organizations, 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 “pharmaceutical contract research organizations”. 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 pharmaceutical contract research organizations), 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 pharmaceutical contract research organizations, 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, 1,393 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 17, 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 pharmaceutical contract research organizations, 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 pharmaceutical contract research organizations are there based in the Netherlands?

RevenueBase identified 138 pharmaceutical contract research organizations 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?

Symeres, headquartered in Nijmegen, tops this list with the largest team on record.

Which city has the most pharmaceutical contract research organizations?

Amsterdam leads with 11 headquartered companies, followed by Utrecht (6) and Groningen (4).

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 1,393 verified decision-maker contacts tracked across these 138 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 17, 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.