Company lists · Data refreshed October 2026

Top 24 Cybersecurity companies based in Madrid, Spain

Our directory lists 182 cybersecurity companies based in Madrid, Spain, with 4,043 professional contacts and 534 email addresses. The list was last updated in October 2026. Across Spain, Madrid is the largest hub for this category.

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 October 1, 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 Oct 1, 2026 86% judged on-target in blind review
182Companies
4,043Contacts tracked
534Verified emails
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The 24 largest cybersecurity companies based in Madrid, Spain

Ranked by team size
Top 24 of 182 cybersecurity companies based in Madrid, Spain, ranked by team size, largest first. Data refreshed Oct 1, 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMadrid, SpainHQ checked Oct 1, 2026501-1,000442 contacts →

Indirect evidence

“MNEMO: We are #DigitalChallengers.”

Source: RevenueBase Database · checked Oct 1, 2026
2Indirect evidenceMadrid, SpainHQ checked Oct 1, 2026201-500229 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 Oct 1, 2026
3Strong evidenceMadrid, SpainHQ checked Oct 1, 2026201-500191 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 Oct 1, 2026
4Indirect evidenceMadrid, SpainHQ checked Oct 1, 202651-200183 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 Oct 1, 2026
5Indirect evidenceMadrid, SpainHQ checked Oct 1, 202651-200171 contacts →

Indirect evidence

“Somos una empresa líder en Ciberseguridad, ofrecemos productos y servicios de la más alta calidad.”

Source: RevenueBase Database · checked Oct 1, 2026
6Indirect evidenceMadrid, SpainHQ checked Oct 1, 202651-200124 contacts →

Indirect evidence

“Empresa de Ciberseguridad soportada en Datos.”

Source: RevenueBase Database · checked Oct 1, 2026
7Strong evidenceMadrid, SpainHQ checked Oct 1, 202651-200107 contacts →

Strong evidence

“Cybertrust & Cybersecurity Wise Security is a technology company that is part of Var Group Spain.”

Source: RevenueBase Database · checked Oct 1, 2026
8Indirect evidenceMadrid, SpainHQ checked Oct 1, 2026501-1,000106 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 Oct 1, 2026
9Indirect evidenceMadrid, SpainHQ checked Oct 1, 202651-20092 contacts →

Indirect evidence

“Protect the data" With only 3 words we define the fundamental mission of Sidertia.”

Source: RevenueBase Database · checked Oct 1, 2026
10Indirect evidenceMadrid, SpainHQ checked Oct 1, 202651-20082 contacts →

Indirect evidence

“Alto is a cognitive threat intelligence company helping enterprises, critical infrastructure, and public institutions detect narrative attacks, influence operations, and AI-scaled…”

Source: RevenueBase Database · checked Oct 1, 2026
11Strong evidenceMadrid, SpainHQ checked Oct 1, 202651-20064 contacts →

Strong evidence

“As of 2024, Innovery, a leading group in the Italian and European market with a wide range of solutions and services in the field of cybersecurity, has joined Neverhack.”

Source: RevenueBase Database · checked Oct 1, 2026
12Indirect evidenceMadrid, SpainHQ checked Oct 1, 202651-20061 contacts →

Indirect evidence

“BOTECH, un paso más allá de la ciberseguridad, la inteligencia y el cumplimiento normativo Casi 15 años de historia… Presentes en España, México, Chile, Brasil, República…”

Source: RevenueBase Database · checked Oct 1, 2026
13Strong evidenceMadrid, SpainHQ checked Oct 1, 202651-20054 contacts →

Strong evidence

“BeDisruptive is a multinational technology boutique specialising in cybersecurity that supports its clients in designing solutions and maintaining a secure environment in which…”

Source: RevenueBase Database · checked Oct 1, 2026
14Strong evidenceMadrid, SpainHQ checked Oct 1, 202651-20049 contacts →

Strong evidence

“Atalanta is a company specialising in cybersecurity, digital transformation and training.”

Source: RevenueBase Database · checked Oct 1, 2026
15Indirect evidenceMadrid, SpainHQ checked Oct 1, 202651-20040 contacts →

Indirect evidence

“Somos SmartHC, una consultora española con alcance internacional especializada en Seguridad, Inteligencia, Formación y Concienciación, Derecho Tecnológico y Servicios IT.”

Source: RevenueBase Database · checked Oct 1, 2026
16Indirect evidenceMadrid, SpainHQ checked Oct 1, 202611-5024 contacts →

Indirect evidence

“Kymatio ® is the leader in human risk management.”

Source: RevenueBase Database · checked Oct 1, 2026
17Indirect evidenceMadrid, SpainHQ checked Oct 1, 202611-5024 contacts →

Indirect evidence

“Transparent Edge es una empresa de ciberseguridad que protege sitios web y API.”

Source: RevenueBase Database · checked Oct 1, 2026
18Strong evidenceMadrid, SpainHQ checked Oct 1, 202611-5024 contacts →

Strong evidence

“Minery Report is a Spanish tech company founded in 2018 by four experts from the Ministry of Defense, specializing in advanced cybersecurity and digital transformation solutions.”

Source: RevenueBase Database · checked Oct 1, 2026
19Indirect evidenceMadrid, SpainHQ checked Oct 1, 202611-5021 contacts →

Indirect evidence

“En Secur0 conectamos organizaciones con hackers éticos de primer nivel en España para encontrar vulnerabilidades antes que los atacantes.”

Source: RevenueBase Database · checked Oct 1, 2026
20Indirect evidenceMadrid, SpainHQ checked Oct 1, 202611-5020 contacts →

Indirect evidence

“Enthec protects organizations and their executives through continuous, automated monitoring of the external attack surface in real time and without false positives.”

Source: RevenueBase Database · checked Oct 1, 2026
21Indirect evidenceMadrid, SpainHQ checked Oct 1, 202611-5020 contacts →

Indirect evidence

“Expertos en seguridad de la información con amplia experiencia en el sector ubicados en Madrid.”

Source: RevenueBase Database · checked Oct 1, 2026
22Indirect evidenceMadrid, SpainHQ checked Oct 1, 202611-5016 contacts →

Indirect evidence

“Tecisa es una empresa proveedora de soluciones integradas de seguridad, formada por un grupo de ingenieros y técnicos superiores, de acreditada experiencia en el sector…”

Source: RevenueBase Database · checked Oct 1, 2026
23Strong evidenceMadrid, SpainHQ checked Oct 1, 202611-5014 contacts →

Strong evidence

“We are a team of cybersecurity experts who are passionate about constantly confronting new and sophisticated cyber threats and blocking them before they evolve into truly…”

Source: RevenueBase Database · checked Oct 1, 2026
24Indirect evidenceMadrid, SpainHQ checked Oct 1, 202611-5014 contacts →

Indirect evidence

“Protegemos tu empresa frente a riesgos digitales que amenazan su operativa, reputación y crecimiento.”

Source: RevenueBase Database · checked Oct 1, 2026

Showing 24 of 182 cybersecurity companies based in Madrid, Spain

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Cybersecurity companies based in Madrid, Spain at a glance

As of Oct 1, 2026
13.2%Verified-email coverage
22.2Average contacts per company
1-10Median size (employees)
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
93
11-50
52
51-200
21
201-500
7
501-1,000
4
1,001-5,000
3
5,001-10,000
1

Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 182 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 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 Madrid, 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 Madrid 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, 534 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 October 1, 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 in Spain

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 182 cybersecurity companies based in Madrid, Spain.

Which city in Spain has the most cybersecurity companies?

Madrid leads Spain with 182 headquartered companies, followed by Barcelona (99) and Malaga (26).

How many contacts are available for cybersecurity companies?

The directory includes 4,043 professional contacts and 534 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.