Company lists · Data refreshed August 2026

Top 25 Cybersecurity companies based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Aug 29, 2026 636 companies tracked

Our directory lists 636 cybersecurity companies based in Spain, with 10,637 professional contacts and 1,878 email addresses. The list was last updated in August 2026, and Madrid is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 29, 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 RevenueBase Smart Search rating on every row Refreshed Aug 29, 2026 86% judged on-target in blind review

636Companies

10,637Contacts tracked

1,878Verified emails

266Mobile numbers

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The 25 largest cybersecurity companies based in Spain

Ranked by team size

Top 25 of 636 cybersecurity companies based in Spain, ranked by team size, largest first. Data refreshed Aug 29, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity 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	SIA Group	Strong evidence	Alcobendas, Spain	1,001-5,000	704 contacts →
	Strong evidence “SIA is the leading cybersecurity company in Spain and Portugal, both in terms of turnover and expert talent, with more than 1,600 specialists.” Source: RevenueBase Database · checked Aug 29, 2026
2	Advens	Strong evidence	Barcelona, Spain	501-1,000	588 contacts →
	Strong evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Aug 29, 2026
3	MNEMO	Indirect evidence	Madrid, Spain	501-1,000	444 contacts →
	Indirect evidence “MNEMO: We are #DigitalChallengers.” Source: RevenueBase Database · checked Aug 29, 2026
4	Panda Security	Strong evidence	Bilbao, Spain	501-1,000	329 contacts →
	Strong evidence “Since its inception in 1990, headquartered in Spain, Panda Security has become one of the foremost European company in advanced cybersecurity solutions and services, as well as…” Source: RevenueBase Database · checked Aug 29, 2026
5	Risco Group	Indirect evidence	Madrid, Spain	501-1,000	294 contacts →
	Indirect evidence “For over 40 years, RISCO Group has been shaping the future of professional security.” Source: RevenueBase Database · checked Aug 29, 2026
6	Socradar Extended Threat Intelligence	Indirect evidence	Madrid, Spain	201-500	259 contacts →
	Indirect evidence “SOCRadar is an Extended Threat Intelligence (XTI) SaaS platform that combines External Attack Surface Management (EASM), Digital Risk Protection Services (DRPS), Supply Chain…” Source: RevenueBase Database · checked Aug 29, 2026
7	Incibe	Indirect evidence	Leon, Spain	51-200	253 contacts →
	Indirect evidence “El Instituto Nacional de Ciberseguridad (INCIBE) es una organización perteneciente al Ministerio para la Transformación Digital y de la Función Pública, a través de la Secretaría…” Source: RevenueBase Database · checked Aug 29, 2026
8	Alhambra IT	Indirect evidence	Madrid, Spain	201-500	228 contacts →
	Indirect evidence “Alhambra es una compañía IT que ayuda a cualquier tipo de organización a proteger sus datos, sus comunicaciones y sus procesos contra todo tipo de incidentes a través de Servicios…” Source: RevenueBase Database · checked Aug 29, 2026
9	Innovasur	Indirect evidence	Jaen, Spain	201-500	227 contacts →
	Indirect evidence “INNOVASUR es una empresa andaluza de base tecnológica referente en Smart City, Infraestructuras IT y Ciberseguridad que cuenta con más de 18 años de experiencia en la detección de…” Source: RevenueBase Database · checked Aug 29, 2026
10	Essence Group	Strong evidence	Madrid, Spain	201-500	214 contacts →
	Strong evidence “About Essence Essence is a global provider of IoT connected-living and cybersecurity solutions for communication, security, and healthcare service providers, serving households…” Source: RevenueBase Database · checked Aug 29, 2026
11	Cuatroochenta	Indirect evidence	Spain	201-500	199 contacts →
	Indirect evidence “Cuatroochenta es un grupo tecnológico internacional dedicado a adquirir, desarrollar e invertir en compañías innovadoras de tecnología, conocimiento especializado y ciberseguridad.” Source: RevenueBase Database · checked Aug 29, 2026
12	S21sec	Strong evidence	Madrid, Spain	201-500	192 contacts →
	Strong evidence “S21Sec, Cyber Solutions by Thales, is a leading European Cybersecurity pure-player, with more than 400 security experts and an Iberian SOC.” Source: RevenueBase Database · checked Aug 29, 2026
13	Govertis	Indirect evidence	Valencia, Spain	51-200	182 contacts →
	Indirect evidence “Expertos en Ciberseguridad, Privacidad, GRC, IRM y Cumplimiento Normativo unificando la perspectiva Legal y Tecnológica GOVERTIS es la mayor firma de Advisory 100% especializada…” Source: RevenueBase Database · checked Aug 29, 2026
14	Attackiq	Indirect evidence	Barcelona, Spain	51-200	158 contacts →
	Indirect evidence “AttackIQ® is trusted by top organizations worldwide to validate security controls in real time.” Source: RevenueBase Database · checked Aug 29, 2026
15	Secure&it	Indirect evidence	Las Rozas De Madrid, Spain	51-200	145 contacts →
	Indirect evidence “Secure & IT es una empresa especializada en seguridad de la información que trabaja en cinco líneas: compliance, procesos y gobierno IT, sistemas y seguridad IT, seguridad…” Source: RevenueBase Database · checked Aug 29, 2026
16	YARIX	Indirect evidence	Madrid, Spain	201-500	131 contacts →
	Indirect evidence “Where Security Meets Innovation In an increasingly interconnected world, Yarix – the Cyber Security Brand of Var Group – stands as a key player in protecting organizations and…” Source: RevenueBase Database · checked Aug 29, 2026
17	A3sec	Indirect evidence	Madrid, Spain	51-200	122 contacts →
	Indirect evidence “Empresa de Ciberseguridad soportada en Datos.” Source: RevenueBase Database · checked Aug 29, 2026
18	Tarlogic	Strong evidence	Spain	51-200	122 contacts →
	Strong evidence “Tarlogic is an international company that specializes in cyber intelligence and cybersecurity.” Source: RevenueBase Database · checked Aug 29, 2026
19	A2secure	Strong evidence	Madrid, Spain	51-200	115 contacts →
	Strong evidence “A2SECURE is a global cybersecurity expert based in Spain, founded in 2009 with private capital and now established as a leading MSSP provider.” Source: RevenueBase Database · checked Aug 29, 2026
20	Superna	Indirect evidence	Alicante Spain, Spain	51-200	111 contacts →
	Indirect evidence “Superna is a global leader in data protection and defense for cyberstorage and the hybrid multi-cloud.” Source: RevenueBase Database · checked Aug 29, 2026
21	Wise Security Global	Strong evidence	Barcelona, Spain	51-200	107 contacts →
	Strong evidence “Cybertrust & Cybersecurity Wise Security is a technology company that is part of Var Group Spain.” Source: RevenueBase Database · checked Aug 29, 2026
22	Innotec Security	Indirect evidence	Madrid, Spain	501-1,000	105 contacts →
	Indirect evidence “Si andas por aquí, significa que te dedicas a la ciberseguridad, que te gustaría trabajar con nosotros o quizá que necesitas que te ayudemos con alguno de nuestros servicios.” Source: RevenueBase Database · checked Aug 29, 2026
23	Aiuken Cybersecurity	Strong evidence	Boadilla Del Monte, Spain	51-200	104 contacts →
	Strong evidence “Your hybrid infrastructure, cloud and network cybersecurity partner Aiuken Cybersecurity is TOP Vendor 2020 for MDR by Gartner.” Source: RevenueBase Database · checked Aug 29, 2026
24	Tautenet	Indirect evidence	Madrid, Spain	51-200	93 contacts →
	Indirect evidence “Somos una empresa con más de 16 años de experiencia.” Source: RevenueBase Database · checked Aug 29, 2026
25	Sidertia By Izertis	Indirect evidence	Madrid, Spain	51-200	92 contacts →
	Indirect evidence “Protect the data" With only 3 words we define the fundamental mission of Sidertia.” Source: RevenueBase Database · checked Aug 29, 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: cybersecurity 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 cybersecurity companies.
Partial evidence: Its own public description names part of cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity 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 636 cybersecurity companies based in Spain

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Cybersecurity companies based in Spain at a glance

As of Aug 29, 2026

17.7%Verified-email coverage

2.5%Mobile-number coverage

16.7Average contacts per company

1-10Median size (employees)

29.9%Largest-city concentration · Madrid

Aug 29, 2026Page data refreshed

Companies by employee count

1-10

361

11-50

199

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 cybersecurity 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 “cybersecurity 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 cybersecurity 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 cybersecurity 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, 1,878 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 August 29, 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.

Cybersecurity companies by metro

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 636 cybersecurity companies based in Spain.

Which city has the most cybersecurity companies?

Madrid is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 10,637 professional contacts and 1,878 email addresses for the listed cybersecurity companies.

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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.