Company lists · Data refreshed September 2026

Top 25 Oncology biotech companies based in Spain

Name: Oncology biotech companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 53 companies tracked

RevenueBase identified 53 oncology biotech companies headquartered in Spain as of September 2026 and tracks 1,863 professional contacts across them, including 395 with verified work emails. Barcelona is the largest hub.

This list covers oncology biotech companies headquartered in Spain, 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

53Companies

1,863Contacts tracked

395Verified emails

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The 25 largest oncology biotech companies based in Spain

Ranked by team size

Top 25 of 53 oncology biotech companies based in Spain, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oncology 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	Vall D'hebron Institute Of Oncology Vhio	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	201-500	666 contacts →
	Partial evidence “Under the leadership of Josep Tabernero, the Vall d’Hebron Institute of Oncology (VHIO) has established itself as a cancer research center of proven excellence internationally.” Source: RevenueBase Database · checked Sep 17, 2026
2	Pharmamar	Partial evidence	Colmenar Viejo, SpainHQ checked Sep 17, 2026	501-1,000	428 contacts →
	Partial evidence “Headquartered in Madrid, PharmaMar is a biopharmaceutical company, focused on oncology and committed to research and development which takes its inspiration from the sea to…” Source: RevenueBase Database · checked Sep 17, 2026
3	Solti Cancerresearch	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	51-200	100 contacts →
	Indirect evidence “SOLTI es un grupo referente en investigación clínica del cáncer en España.” Source: RevenueBase Database · checked Sep 17, 2026
4	Amadix	Indirect evidence	Valladolid, SpainHQ checked Sep 17, 2026	11-50	47 contacts →
	Indirect evidence “AMADIX is a leading molecular diagnostics company focused on liquid biopsy, developing innovative diagnostic tests for early cancer detection in blood.” Source: RevenueBase Database · checked Sep 17, 2026
5	STE Prasfarma	Partial evidence	Manlleu, SpainHQ checked Sep 17, 2026	11-50	36 contacts →
	Partial evidence “At Prasfarma, we are a pharmaceutical company with over 75 years of experience, specializing in the development, co-development, and manufacturing of high-potency and oncology…” Source: RevenueBase Database · checked Sep 17, 2026
6	Pangaea Oncology	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	35 contacts →
	Partial evidence “Pangaea Oncology es una compañía de servicios médicos focalizada en la oncología de precisión, cuya misión es mejorar la supervivencia y calidad de vida de los pacientes y…” Source: RevenueBase Database · checked Sep 17, 2026
7	Probelte Pharma	Indirect evidence	Murcia, SpainHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Probelte Pharma es un laboratorio biofarmacéutico investigador fabricante de vacunas terapéuticas de uso humano, creado en Murcia en 1995.” Source: RevenueBase Database · checked Sep 17, 2026
8	ONA Therapeutics	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	30 contacts →
	Indirect evidence “Ona Therapeutics is pioneering the development of first-in-class antibody drug conjugates (ADCs) that exploit the molecular underpinnings of advanced cancer.” Source: RevenueBase Database · checked Sep 17, 2026
9	Oncomatryx Biopharma	Indirect evidence	Derio, SpainHQ checked Sep 17, 2026	11-50	26 contacts →
	Indirect evidence “Oncomatryx is a biopharmaceutical company focused on the tumor microenvironment.” Source: RevenueBase Database · checked Sep 17, 2026
10	Oncologypipeline	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “OncologyPipeline is a comprehensive online resource tool that maps all relevant clinical trials and molecules in development in Oncology on a worldwide basis.” Source: RevenueBase Database · checked Sep 17, 2026
11	Hawk Biosystems	Partial evidence	Derio, SpainHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “HAWK Biosystems is a biotechnology company spun out of the Francis Crick Institute in London.” Source: RevenueBase Database · checked Sep 17, 2026
12	Abilitypharma	Partial evidence	Cerdanyola Del Vallès, SpainHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “Ability Pharmaceuticals is a clinical-stage biopharmaceutical company committed to develop first-in-class therapies that address unmet medical needs in the oncology space.” Source: RevenueBase Database · checked Sep 17, 2026
13	IOB Institute Of Oncology Madrid	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	18 contacts →
	Partial evidence “Con un equipo de más de 30 años de experiencia, IOB Institute of Oncology Madrid está formado por un amplio grupo de oncólogos de reconocido prestigio internacional y es un…” Source: RevenueBase Database · checked Sep 17, 2026
14	Highlight Therapeutics SL	Partial evidence	Valencia, SpainHQ checked Sep 17, 2026	1-10	15 contacts →
	Partial evidence “Highlight, formerly known as Bioncotech Therapeutics S.L, is a private, clinical-stage company dedicated to unlocking the full potential of immuno-oncology.” Source: RevenueBase Database · checked Sep 17, 2026
15	Oniria Therapeutics	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	14 contacts →
	Indirect evidence “A shift in cancer treatment methodology makes a world of difference.” Source: RevenueBase Database · checked Sep 17, 2026
16	Endor Technologies	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “On the way of developing new cancer therapies and solutions for skincare.” Source: RevenueBase Database · checked Sep 17, 2026
17	ATG Therapeutics	Indirect evidence	L’hospitalet De Llobregat, SpainHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “AtG Therapeutics is a pre-clinical stage drug development company specialised in the discovery of targets of tumor adaptation vulnerabilities and the development of therapeutics…” Source: RevenueBase Database · checked Sep 17, 2026
18	Nanobots Therapeutics	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “A Biomedical Company Improving Drug Accumulation In Cancer Cells” Source: RevenueBase Database · checked Sep 17, 2026
19	Keyzell	Partial evidence	Sevilla, SpainHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “KeyZell is a biotechnology company focused on transforming how cancer and complex diseases are addressed.” Source: RevenueBase Database · checked Sep 17, 2026
20	Medibiofarma SL	Partial evidence	Noáin, SpainHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial evidence “Medibiofarma S.L is a clinical-stage biotechnology company founded in 2016 by a group of professionals with extensive experience in Drug Discovery in the pharmaceutical industry.” Source: RevenueBase Database · checked Sep 17, 2026
21	Sunrock Biopharma, S.L	Indirect evidence	Santiago De Compostela, SpainHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “SunRock is a biopharmaceutical company, developing sophisticated therapeutic antibodies under innovative formats antibodies to treat incurable cancer.” Source: RevenueBase Database · checked Sep 17, 2026
22	Arjuna Therapeutics	Indirect evidence	Milladoiro, SpainHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “We are developing an entirely novel class of orally available small molecules to address untreatable cancers.” Source: RevenueBase Database · checked Sep 17, 2026
23	Stab Therapeutics	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	1-10	5 contacts →
	Strong evidence “We are a biotech spin-off developing an innovative cell therapeutic platform to create next generation cell therapies in oncology.” Source: RevenueBase Database · checked Sep 17, 2026
24	Alodia Farmacéutica SL	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “Empresa de I+D+I basada en proyectos propios y colaboraciones con centros de investigación públicos.” Source: RevenueBase Database · checked Sep 17, 2026
25	Protein Alternatives SL Proalt	Partial evidence	Tres Cantos, SpainHQ checked Sep 17, 2026	11-50	3 contacts →
	Partial evidence “Protein Alternatives (ProAlt) is a biotechnology company focused on developing novel therapeutic monoclonal antibodies for the treatment of metastatic colorectal cancer.” 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: oncology 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 oncology biotech companies.
Partial evidence: Its own public description names part of oncology biotech companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oncology 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 25 of 53 oncology biotech companies based in Spain

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Oncology biotech companies based in Spain at a glance

As of Sep 17, 2026

21.2%Verified-email coverage

35.2Average contacts per company

1-10Median size (employees)

32.1%Largest-city concentration · Barcelona

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 53 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 oncology 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 Spain whose own description of what they do matches “oncology 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 oncology 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 oncology biotech companies, and records with no verified work email. Companies headquartered outside Spain 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, 395 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 oncology 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 oncology biotech companies are there based in Spain?

RevenueBase identified 53 oncology biotech companies headquartered in Spain 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?

Vall D'hebron Institute Of Oncology Vhio, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most oncology biotech companies?

Barcelona leads with 17 headquartered companies, followed by Madrid (11) and A Coruna (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 395 verified decision-maker contacts tracked across these 53 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.