Company lists · Data refreshed September 2026

Top 25 Research and development outsourcing providers based in the Netherlands

RevenueBase identified 82 research and development outsourcing providers headquartered in the Netherlands as of September 2026 and tracks 1,530 professional contacts across them, including 908 with verified work emails and 78 with mobile numbers. Amsterdam is the largest hub.

This list covers research and development outsourcing providers 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
82Companies
1,530Contacts tracked
908Verified emails
78Mobile numbers
Explore all 82 companies → Free signup · no credit card · 500 free credits

The 25 largest research and development outsourcing providers based in the Netherlands

Ranked by team size
Top 25 of 82 research and development outsourcing providers based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names research and development outsourcing providers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
SymeresStrong evidence
Nijmegen, NetherlandsHQ checked Sep 5, 2026501-1,000377

“Symeres is a leading contract research, development and manufacturing organization (CDMO & CRO) supporting pharmaceutical and biotechnology companies across the full drug…”

Source: company website · checked Sep 5, 2026
2Leiden, NetherlandsHQ checked Sep 5, 2026201-500367

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

Source: company website · checked Sep 5, 2026
3
Julius ClinicalStrong evidence
Zeist, NetherlandsHQ checked Sep 5, 2026201-500185

“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: company website · checked Sep 5, 2026
4
Sire Life SciencesIndirect evidence
Leiden, NetherlandsHQ checked Sep 5, 2026201-50088

“SIRE® Life Sciences is the market-leading partner for Life Sciences consultancy, project management, and secondment services in the Netherlands.”

Source: company website · checked Sep 5, 2026
5
FindestIndirect evidence
Amsterdam, NetherlandsHQ checked Sep 5, 202611-5037

“The world needs discovery.”

Source: company website · checked Sep 5, 2026
6
3d-PharmxchangePartial evidence
Tilburg, NetherlandsHQ checked Sep 5, 202611-5037

“As a drug development consultancy company, 3D-PharmXchange brings a range of solutions to companies, by designing and executing optimized product development scenario’s along…”

Source: company website · checked Sep 5, 2026
7
InterdosIndirect evidence
Geleen, NetherlandsHQ checked Sep 5, 202611-5036

“Interdos is part of the Basic Pharma Group located at the Brightlands Chemelot Campus in Geleen, the Netherlands.”

Source: company website · checked Sep 5, 2026
8Schiphol-rijk, NetherlandsHQ checked Sep 5, 202651-20034
Source: company website · checked Sep 5, 2026
9
DWISEPartial evidence
Amsterdam, NetherlandsHQ checked Sep 5, 202611-5027

“The premium research services delivered by DWise provide a unique approach to outsourced research & data transformation for technology companies, research agencies & corporate…”

Source: company website · checked Sep 5, 2026
10
Cr2o Clinical CROPartial evidence
Maarssen, NetherlandsHQ checked Sep 5, 202651-20022

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

Source: company website · checked Sep 5, 2026
11
MercachemsyncomStrong evidence
Nijmegen, NetherlandsHQ checked Sep 5, 2026201-50019

“Symeres is the leading mid-sized European Contract Research Organization for your drug-discovery and development challenges.”

Source: company website · checked Sep 5, 2026
12
Research Drive BVIndirect evidence
Norg, NetherlandsHQ checked Sep 5, 202611-5013

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

Source: company website · checked Sep 5, 2026
13
Siron ClinicalIndirect evidence
Roosendaal, NetherlandsHQ checked Sep 5, 202611-5012

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

Source: company website · checked Sep 5, 2026
14
AviviaIndirect evidence
Nijmegen, NetherlandsHQ checked Sep 5, 20261-1012

“Avivia is a Dutch independent pharmaceutical R&D service organization and your partner in drug (re)formulation, repurposing and repositioning.”

Source: company website · checked Sep 5, 2026
15
VivenicsPartial evidence
Oss, NetherlandsHQ checked Sep 5, 202611-5011

“Imagine that you can fully focus on your research business: developing effective new products and services that matter.”

Source: company website · checked Sep 5, 2026
16
Axon MedchemIndirect evidence
Groningen, NetherlandsHQ checked Sep 5, 202611-5011

“Axon Medchem is a chemistry service platform, spinned-off from Axon Biochemicals BV.”

Source: company website · checked Sep 5, 2026
17
AIGROStrong evidence
Best, NetherlandsHQ checked Sep 5, 20261-109

“We are a Research & Development company with the main focus on disruptive technology.”

Source: company website · checked Sep 5, 2026
18
DelphiniumIndirect evidence
Groningen, NetherlandsHQ checked Sep 5, 20261-108

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

Source: company website · checked Sep 5, 2026
19
AMMOStrong evidence
Amsterdam, NetherlandsHQ checked Sep 5, 20261-108

Research, design and development.”

Source: company website · checked Sep 5, 2026
20Hoofddorp, NetherlandsHQ checked Sep 5, 202611-506

“We’ve moved!”

Source: company website · checked Sep 5, 2026
21
Waders Milieu BVIndirect evidence
Waddinxveen, NetherlandsHQ checked Sep 5, 20261-106

“Waddinxveen”

Source: company website · checked Sep 5, 2026
22
J&s Preclinical SolutionsIndirect evidence
Amsterdam, NetherlandsHQ checked Sep 5, 20261-105

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

Source: company website · checked Sep 5, 2026
23
Neunco Pharmaceutical B.VIndirect evidence
Eindhoven, NetherlandsHQ checked Sep 5, 20261-105

“Neunco Pharmaceuticals is an established consultancy firm that represents exceptional clinical trial distribution and pharma companies, our journey began by providing…”

Source: company website · checked Sep 5, 2026
24
Pharma DiversityIndirect evidence
Sassenheim, NetherlandsHQ checked Sep 5, 20261-105

“To implement and execute the complete process with the big variety of tasks, complexity and the amount of work, it is possible some additional hands are required in your team.”

Source: company website · checked Sep 5, 2026
25
Medex15Indirect evidence
Amsterdam, NetherlandsHQ checked Sep 5, 20261-103

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

Source: company website · checked Sep 5, 2026

Showing 25 of 82 research and development outsourcing providers based in the Netherlands

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Research and development outsourcing providers based in the Netherlands at a glance

As of Sep 5, 2026
1-10Median size (employees)
AmsterdamLargest hub · 11 HQs
78Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
55
11-50
14
51-200
4
201-500
6
501-1,000
2
10001+
1

Verified emails by last verification

0–30
837
31–60
69
61–90
0
90–180
0
180+
2

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 research and development outsourcing providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “research and development outsourcing providers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among research and development outsourcing providers, 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 an evidence 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, 908 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 5, 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

How many research and development outsourcing providers are there based in the Netherlands?

RevenueBase identified 82 research and development outsourcing providers 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 research and development outsourcing providers?

Amsterdam leads with 11 headquartered companies, followed by Groningen (4) and Leiden (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 908 verified decision-maker contacts tracked across these 82 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 5, 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 SmartSearch, 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.