Company lists · Data refreshed September 2026

Top 23 Immunotherapy biotech companies based in the Netherlands

Name: Immunotherapy biotech companies based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 32 companies tracked

RevenueBase identified 32 immunotherapy biotech companies headquartered in the Netherlands as of September 2026 and tracks 1,263 professional contacts across them, including 717 with verified work emails. Utrecht is the largest hub.

This list covers immunotherapy biotech companies 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 15, 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 15, 2026 86% judged on-target in blind review

32Companies

1,263Contacts tracked

717Verified emails

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The 23 largest immunotherapy biotech companies based in the Netherlands

Ranked by team size

Top 23 of 32 immunotherapy biotech companies based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to immunotherapy biotech companies: 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	Byondis	Indirect evidence	Nijmegen, NetherlandsHQ checked Sep 15, 2026	201-500	272 contacts →
	Indirect evidence “Driven to improve patients’ lives, Byondis is an independent, fully integrated biopharmaceutical research and development company creating innovative targeted medicines for cancer.” Source: RevenueBase Database · checked Sep 15, 2026
2	Merus N.V	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 15, 2026	201-500	265 contacts →
	Indirect evidence “Merus is developing best-in-class therapeutics to treat and potentially cure cancer patients.” Source: RevenueBase Database · checked Sep 15, 2026
3	HAL Allergy Group	Partial evidence	Leiden, NetherlandsHQ checked Sep 15, 2026	201-500	265 contacts →
	Partial evidence “HAL Allergy is one of the European top players in the development, production and distribution of allergen immunotherapies for the treatment and prevention of allergic diseases.” Source: RevenueBase Database · checked Sep 15, 2026
4	Roche Diagnostics Nederland	Indirect evidence	Almere, NetherlandsHQ checked Sep 15, 2026	10001+	160 contacts →
	Indirect evidence “Eerder duidelijkheid, betere resultaten, meer jaren in goede gezondheid.” Source: RevenueBase Database · checked Sep 15, 2026
5	Neogene Therapeutics	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 15, 2026	51-200	59 contacts →
	Partial evidence “Neogene Therapeutics is a global, clinical-stage biotechnology company pioneering the discovery, development, and manufacturing of next-generation engineered T cell receptor (TCR)…” Source: RevenueBase Database · checked Sep 15, 2026
6	Gyes BV	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 15, 2026	11-50	25 contacts →
	Indirect evidence “Gyes is using the Multispecific Antibody Platform (the MAP) to discover and develop precision antibody therapeutics.” Source: RevenueBase Database · checked Sep 15, 2026
7	Curevac Netherlands	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 15, 2026	11-50	19 contacts →
	Indirect evidence “CureVac Netherlands BV is dedicated to transforming the treatment of cancer by directing the immune system towards Frame neoantigens.” Source: RevenueBase Database · checked Sep 15, 2026
8	Nanocell Therapeutics	Partial evidence	Utrecht, NetherlandsHQ checked Sep 15, 2026	11-50	19 contacts →
	Partial evidence “NanoCell Therapeutics is a privately-held biotechnology company with offices in King of Prussia, Pennsylvania, and Utrecht, the Netherlands.” Source: RevenueBase Database · checked Sep 15, 2026
9	Sairopa B.V	Indirect evidence	Rotterdam, NetherlandsHQ checked Sep 15, 2026	1-10	19 contacts →
	Indirect evidence “Sairopa develops novel treatments for cancer by modulating the patient’s immune system.” Source: RevenueBase Database · checked Sep 15, 2026
10	Oncolines B.V	Partial evidence	Oss, NetherlandsHQ checked Sep 15, 2026	11-50	18 contacts →
	Partial evidence “Oncolines B.V.(Oss, The Netherlands) is a precision medicine services company in oncology and cancer immunotherapy, part of Symeres B.V.(Nijmegen, The Netherlands).” Source: RevenueBase Database · checked Sep 15, 2026
11	Immios B.V	Indirect evidence	Oss, NetherlandsHQ checked Sep 15, 2026	11-50	16 contacts →
	Indirect evidence “IIMMIOS is a pre-clinical stage company developing IMS-2407 antibody to reset tissue auto-immune disease providing durable relapse-free benefit to patients suffering from…” Source: RevenueBase Database · checked Sep 15, 2026
12	Kling Biotherapeutics	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 15, 2026	11-50	13 contacts →
	Partial evidence “Kling Biotherapeutics is a clinical-stage, privately held biotech company focused on discovery and development of antibody based therapeutics.” Source: RevenueBase Database · checked Sep 15, 2026
13	Lead Pharma	Indirect evidence	Oss, NetherlandsHQ checked Sep 15, 2026	11-50	11 contacts →
	Indirect evidence “Lead Pharma is a pharmaceutical company focusing on the discovery and development of innovative medicines for the treatment of immune diseases and cancer.” Source: RevenueBase Database · checked Sep 15, 2026
14	PAN Cancer T	Partial evidence	Rotterdam, NetherlandsHQ checked Sep 15, 2026	1-10	10 contacts →
	Partial evidence “Pan Cancer T is a biotechnology spin-out (Erasmus MC, Rotterdam) focussed on the discovery and development of T cell receptor (TCR) T cell therapies.” Source: RevenueBase Database · checked Sep 15, 2026
15	Cimcure B.V	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 15, 2026	1-10	8 contacts →
	Partial evidence “CimCure’s solution is a vaccination based immunotherapy directed to the tumor blood vessels that are common to most solid tumors.” Source: RevenueBase Database · checked Sep 15, 2026
16	Allero Therapeutics BV	Strong evidence	Rotterdam, NetherlandsHQ checked Sep 15, 2026	1-10	6 contacts →
	Strong evidence “Allero Therapeutics is a Dutch biotech company that develops next generation immunotherapies for immune mediated disorders.” Source: RevenueBase Database · checked Sep 15, 2026
17	Gadeta B.V., A Clade Therapeutics Inc. Company	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 15, 2026	11-50	5 contacts →
	Indirect evidence “Gadeta B.V, a Clade Therapeutics Inc.” Source: RevenueBase Database · checked Sep 15, 2026
18	Glycotreat	Partial evidence	Amersfoort, NetherlandsHQ checked Sep 15, 2026	1-10	5 contacts →
	Partial evidence “GlycoTreat develops glyco-immunotherapy with the mission to develop a cure for all humans and animals suffering from allergies.” Source: RevenueBase Database · checked Sep 15, 2026
19	Ayuvant	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 15, 2026	1-10	4 contacts →
	Indirect evidence “Ayuvant is a pharmaceutical company that has created an advanced delivery system to boost the effectiveness of RNA medicines.” Source: RevenueBase Database · checked Sep 15, 2026
20	Abvion	Partial evidence	Utrecht, NetherlandsHQ checked Sep 15, 2026	1-10	3 contacts →
	Partial evidence “Abvion is an early-stage biotechnology company on a mission to pioneer therapeutics based on the most powerful human antibodies.” Source: RevenueBase Database · checked Sep 15, 2026
21	Cimaas BV	Indirect evidence	Maastricht, NetherlandsHQ checked Sep 15, 2026	1-10	3 contacts →
	Indirect evidence “Our mission is achieving a better cure for cancer.” Source: RevenueBase Database · checked Sep 15, 2026
22	ellogon.ai	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 15, 2026	1-10	2 contacts →
	Partial evidence “ELLOGON.AI is working on personalizing immunotherapy with the power of big and rich data, cutting-edge algorithms and a world-class research and development team.” Source: RevenueBase Database · checked Sep 15, 2026
23	Xenikos B.V	Partial evidence	Nijmegen, NetherlandsHQ checked Sep 15, 2026	1-10	1 contacts →
	Partial evidence “Xenikos is a clinical-stage biotechnology company focused on developing a novel therapy that aims to quickly and efficiently reset the immune system of patients suffering from…” Source: RevenueBase Database · checked Sep 15, 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: immunotherapy biotech companies. 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 immunotherapy biotech companies.
Partial evidence: Its own public description names part of immunotherapy biotech companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name immunotherapy biotech companies. 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 23 of 32 immunotherapy biotech companies based in the Netherlands

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Immunotherapy biotech companies based in the Netherlands at a glance

As of Sep 15, 2026

56.8%Verified-email coverage

39.5Average contacts per company

11-50Median size (employees)

18.8%Largest-city concentration · Utrecht

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

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 32 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 immunotherapy biotech companies, 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 “immunotherapy biotech companies”. 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 immunotherapy biotech companies), 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 immunotherapy biotech companies, 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, 717 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 15, 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 immunotherapy biotech companies, 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 immunotherapy biotech companies are there based in the Netherlands?

RevenueBase identified 32 immunotherapy biotech companies 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?

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

Which city has the most immunotherapy biotech companies?

Utrecht leads with 6 headquartered companies, followed by Amsterdam (4) and Rotterdam (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 717 verified decision-maker contacts tracked across these 32 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 15, 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.