Company lists · Data refreshed September 2026
Top 25 Cancer organizations based in Spain
RevenueBase identified 139 cancer organizations headquartered in Spain as of September 2026 and tracks 4,315 professional contacts across them, including 589 with verified work emails. Madrid is the largest hub.
This list covers cancer organizations 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 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.
The 25 largest cancer organizations based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 748 contacts → | ||||
Indirect evidence “L’Institut Català d’Oncologia (ICO) és un centre públic, dedicat exclusivament al càncer, que depèn del Departament de Salut del govern autonòmic de Catalunya (Espanya).” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 666 contacts → | ||||
Strong 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 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 509 contacts → | ||||
Strong evidence “The Spanish National Cancer Research Centre is a public institution of excellence committed to research, diagnosis and treatment for cancer.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 110 contacts → | ||||
Indirect evidence “El Grupo Español de Investigación en Cáncer de Mama (GEICAM), cuenta con un equipo humano de gran profesionalidad, especializado en la gestión integral de ensayos clínicos…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 100 contacts → | ||||
Indirect evidence “SOLTI es un grupo referente en investigación clínica del cáncer en España.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 81 contacts → | ||||
Indirect evidence “El Centro Oncológico de Galicia es un centro sanitario cuyo fin primordial es la lucha contra el cáncer, con actividad asistencial, docente e investigadora en el estudio y…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 59 contacts → | ||||
Indirect evidence “La Fundación de investigación CRIS CONTRA EL CÁNCER es una organización independiente y sin ánimo de lucro dedicada al fomento y desarrollo de la investigación para eliminar el…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 27 contacts → | ||||
Indirect evidence “Desde IOB nos esforzamos por lograr la excelencia en cada detalle del cuidado del paciente oncológico a través de la investigación, los últimos avances en prevención y…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 contacts → | ||||
Indirect evidence “El Grupo Español de Cáncer de Pulmón (GECP) es un grupo cooperativo de trabajo e investigación en esta patología formado por más de 460 profesionales que goza de un elevado…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 19 contacts → | ||||
Indirect evidence “En la Fundación Científica de la Asociación Española Contra el Cáncer trabajamos para disminuir el impacto que tiene el cáncer a través de la investigación.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Indirect evidence “La Fundación Kālida promueve un modelo de asistencia psicosocial, para pacientes con cáncer, centrado en la persona.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 contacts → | ||||
Strong evidence “En la Fundación MD Anderson Cancer Center España trabajamos para conseguir erradicar el cáncer a través de la investigación, consolidando la formación de calidad para…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 contacts → | ||||
Strong evidence “The first hyperspecialized breast cancer center in Spain.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 contacts → | ||||
Strong evidence “In Altum we aim to provide best approaches for cancer cell monitoring, helping patients to know the evolution of their disease and clinicians to better decide when and how to…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Indirect evidence “ASPANION es la Asociación de Madres y Padres de Niñas y Niños con Cáncer de la Comunidad Valenciana.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 contacts → | ||||
Indirect evidence “La Fundació Lliga Catalana d'Ajuda Oncològica, ONCOLLIGA, es una fundació privada sense afany de lucre i te com a finalitat l'ajuda psicosocial a les persones malaltes de càncer i…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Indirect evidence “La sociedad médica se enfrenta a nuevos retos sanitarios en un entorno cambiante, con un perfil de paciente oncológico diferente y con nuevas tecnologías y avances en los…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “Afanion es la Asociación de Familias de Niños con Cáncer de Castilla-La Mancha.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Indirect evidence “La Federación Española de Familias de Cáncer Infantil (FEFCI) es una entidad sin ánimo de lucro y de utilidad pública, constituida en 1990 por madres y padres con hijos afectados…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Strong evidence “MD Anderson Cancer Center Madrid was founded in the year as the only subsidiary of the most prestigious cancer center in the world: MD Anderson Cancer Center in Houston, Texas.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Indirect evidence “Grupo multidisciplinar dedicado al cuidado integral del paciente con cáncer.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 contacts → | ||||
Indirect evidence “ADICAM es una asociación sin ánimo de lucro, no gubernamental, que realiza apoyo social y promueve nuevos servicios, complementarios a los realizados por las instituciones…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “Asociación de lucha contra el cáncer que visibiliza la enfermedad y acompaña al enfermo y a sus allegados en el proceso oncológico, con ayuda de tipo nutricional, psicológica y…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Indirect evidence “La Fundación FERO es una fundación privada sin ánimo de lucro que se dedica a impulsar la investigación contra el cáncer.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “QUIÉNES SOMOS?” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
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: cancer 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 cancer organizations.
- Partial evidence
- Its own public description names part of cancer organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cancer 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 139 cancer organizations based in Spain
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Cancer organizations based in Spain at a glance
As of Sep 15, 2026Companies by employee count
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 139 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 cancer 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 Spain whose own description of what they do matches “cancer 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 cancer 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 cancer organizations, 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, 589 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.
Cancer organizations by metro
- Cancer organizations in Madrid37
- Cancer organizations in Barcelona31
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 cancer 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 cancer organizations are there based in Spain?
RevenueBase identified 139 cancer organizations 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?
Catalan Institute Of Oncology, headquartered in Lhospitalet De Llobregat, tops this list with the largest team on record.
Which city has the most cancer organizations?
Madrid leads with 37 headquartered companies, followed by Barcelona (31) and Valencia (7).
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 589 verified decision-maker contacts tracked across these 139 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.
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