Company lists · Data refreshed November 2026

Top 25 Information security services companies based in Spain

RevenueBase identified 544 company matches for information security services companies associated with Spain as of November 2026 and tracks 8,371 professional contacts across them, including 1,207 with verified work emails. Madrid is the largest hub.

This list covers company matches for information security services companies associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
544Companies
8,371Contacts tracked
1,207Verified emails
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The 25 largest information security services companies based in Spain

Ranked by team size
Top 25 of 544 company matches for information security services companies based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAlcobendas, SpainHQ recorded Nov 5, 20261,001-5,000637 contacts →

Exact match

“SIA is the leading cybersecurity company in Spain and Portugal, both in terms of turnover and expert talent, with more than 1,600 specialists.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchLas Rozas, SpainHQ recorded Nov 5, 20261,001-5,000593 contacts →

Exact match

“Compañía de seguridad de ámbito nacional dedicada a la prestación de servicios de seguridad, vigilancia uniformada, protección de personas VIP, sistemas electrónicos de seguridad…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSan Fernando De Henares, SpainHQ recorded Nov 5, 20261,001-5,000386 contacts →

Exact match

“Clece Seguridad nace con el objetivo de prestar soluciones integrales de protección y seguridad a personas, empresas e instituciones bajo un concepto de seguridad integral…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Nov 5, 2026201-500248 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 5, 202651-200191 contacts →

Exact match

“Expertos en Ciberseguridad, Privacidad, GRC, IRM y Cumplimiento Normativo unificando la perspectiva Legal y Tecnológica GOVERTIS es la mayor firma de Advisory 100% especializada…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchLas Rozas De Madrid, SpainHQ recorded Nov 5, 202651-200157 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 5, 202651-200133 contacts →

Exact match

“Tarlogic is an international company that specializes in cyber intelligence and cybersecurity.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 5, 202651-200128 contacts →

Exact match

“Empresa de Ciberseguridad soportada en Datos.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchBarcelona, SpainHQ recorded Nov 5, 202651-200122 contacts →

Exact match

“A2SECURE is a global cybersecurity expert based in Spain, founded in 2009 with private capital and now established as a leading MSSP provider.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchBoadilla Del Monte, SpainHQ recorded Nov 5, 202651-200104 contacts →

Exact match

“Your hybrid infrastructure, cloud and network cybersecurity partner Aiuken Cybersecurity is TOP Vendor 2020 for MDR by Gartner.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchMataro, SpainHQ recorded Nov 5, 202651-20098 contacts →

Exact match

“GSSecurity nace en el año 2006 de la mano de un grupo de profesionales con una dilatada experiencia en el sector de la seguridad residencial y empresarial.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Nov 5, 202651-20096 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 5, 2026201-50094 contacts →

Exact match

“S21Sec, Cyber Solutions by Thales, is a leading European Cybersecurity pure-player, with more than 400 security experts and an Iberian SOC.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchBarcelona, SpainHQ recorded Nov 5, 202651-20093 contacts →

Exact match

“IT Systems integrator company especialized in IT storage systems, backup disaster recovery and server virtualization.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 5, 202651-20086 contacts →

Exact match

“Áudea Seguridad de la Información es una consultora tecnológica, con 10 años de experiencia, que presta servicios profesionales relacionados con la gestión de la seguridad de la…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchMadrid, SpainHQ recorded Nov 5, 2026501-1,00079 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Nov 5, 202651-20074 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchMálaga, SpainHQ recorded Nov 5, 202651-20071 contacts →

Exact match

“Hispasec forma parte de la historia de la ciberseguridad en España desde hace más de 25 años.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchOurense, SpainHQ recorded Nov 5, 202611-5066 contacts →

Exact match

“DLTCode es una empresa que opera en el ámbito de la consultaría tecnológica y digital, ciberseguridad e innovación abierta.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchSant Adrià De Besòs, SpainHQ recorded Nov 5, 202611-5060 contacts →

Exact match

“Empresa de servicios de tecnologías de la información.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchGranada, SpainHQ recorded Nov 5, 202611-5059 contacts →

Exact match

“We are a cybersecurity company providing consulting and evaluation services under different evaluation methodologies such as LINCE, Common Criteria, FIPS 140-3, PCI-PTS, PCI-CPoC…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 5, 202651-20057 contacts →

Exact match

“En Vettonia Seguridad trabajamos para ofrecerte la mejor protección, no solo para tu negocio o tu familia, sino para todos los aspectos de tu vida en los que puedas necesitar un…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchVilafranca Del Penedès, SpainHQ recorded Nov 5, 202651-20052 contacts →

Exact match

“Gestinet es una empresa tecnológica con 30 años de trayectoria, formada por un equipo propio en Catalunya, Madrid y Valencia.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchBarcelona, SpainHQ recorded Nov 5, 202611-5050 contacts →

Exact match

“CEMOEL, es una empresa nacida en 1991, dedicada a la realización de instalaciones y mantenimiento de Sistemas de Seguridad Integral.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchSan Sebastián De Los Reyes, SpainHQ recorded Nov 5, 202651-20047 contacts →

Exact match

“Somos una empresa especializada en ciberseguridad, que acompaña, protege y asesora al cliente en todo su ciclo de vida digital a través de 3 grandes fases: 1.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 544 information security services companies based in Spain

See the full list, filter by size, metro and specialty, and access 1,207 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Information security services companies based in Spain at a glance

As of Nov 5, 2026
14.4%Verified-email coverage
15.4Average contacts per company
1-10Median size (employees)
26.3%Largest-city concentration · Madrid
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
318
11-50
157
51-200
44
201-500
10
501-1,000
6
1,001-5,000
7

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 544 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Spain whose business descriptions match “information security services companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,207 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “information security services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many information security services companies are there based in Spain?

RevenueBase identified 544 company matches for information security services companies associated with Spain as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

SIA Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most information security services companies?

Madrid leads with 143 company records, followed by Barcelona (72) and Malaga (17).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,207 professional contacts with verified work emails tracked across these 544 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.