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.
The 25 largest research and development outsourcing providers based in the Netherlands
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | SymeresStrong evidence | 377 | |||
“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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 367 | ||||
“The CRO for data-intensive, early phase clinical studies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | Julius ClinicalStrong evidence | 185 | |||
“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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 88 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 5 | FindestIndirect evidence | 37 | |||
“The world needs discovery.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 37 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 36 | ||||
“Interdos is part of the Basic Pharma Group located at the Brightlands Chemelot Campus in Geleen, the Netherlands.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | Icon Clinical Research U.K. LTDIndirect evidence | 34 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 22 | ||||
“CR2O is a full-service Contract Research Organization.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | MercachemsyncomStrong evidence | 19 | |||
“Symeres is the leading mid-sized European Contract Research Organization for your drug-discovery and development challenges.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 | ||||
“Personal business, Personal touch-that’s what sets us apart for our clients but also the site staff.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 11 | ||||
“Imagine that you can fully focus on your research business: developing effective new products and services that matter.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 | ||||
“Axon Medchem is a chemistry service platform, spinned-off from Axon Biochemicals BV.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 | ||||
“We are a Research & Development company with the main focus on disruptive technology.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 | ||||
“DELPHINIUM is a dedicated and dynamic company, comprised of experienced professionals committed to Phase I clinical pharmacology.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 | ||||
“Research, design and development.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 | ||||
“We’ve moved!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | Waders Milieu BVIndirect evidence | 6 | |||
“Waddinxveen” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | J&s Preclinical SolutionsIndirect evidence | 5 | |||
“J&S Preclinical Solutions is a consulting firm specializing in preclinical pharmacology and toxicology.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Neunco Pharmaceutical B.VIndirect evidence | 5 | |||
“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, 2026Thanks. The Data Team will review it. | |||||
| 24 | Pharma DiversityIndirect evidence | 5 | |||
“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, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 | ||||
“Medex15 offers medical and clinical expertise to pharmaceutical and biotech companies, and investigators.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
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, 2026Companies by employee count
Verified emails by last verification
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.
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