Company lists · Data refreshed September 2026

Top 25 Utilities cybersecurity companies based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 68 companies tracked

RevenueBase identified 68 utilities cybersecurity companies headquartered in Spain as of September 2026 and tracks 2,349 professional contacts across them, including 368 with verified work emails. Madrid is the largest hub.

This list covers utilities cybersecurity 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 21, 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 21, 2026 86% judged on-target in blind review

68Companies

2,349Contacts tracked

368Verified emails

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The 25 largest utilities cybersecurity companies based in Spain

Ranked by team size

Top 25 of 68 utilities cybersecurity companies based in Spain, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to utilities 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	S2grupo	Partial evidence	Valencia, SpainHQ checked Sep 21, 2026	501-1,000	683 contacts →
	Partial evidence “We are a European company specialising in cybersecurity, cyberintelligence and cyberdefence, with more than 20 years of experience protecting critical infrastructures and…” Source: RevenueBase Database · checked Sep 21, 2026
2	Alhambra IT	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	201-500	229 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 Sep 21, 2026
3	S21sec	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	201-500	191 contacts →
	Partial 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 Sep 21, 2026
4	A3sec	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	51-200	124 contacts →
	Indirect evidence “Empresa de Ciberseguridad soportada en Datos.” Source: RevenueBase Database · checked Sep 21, 2026
5	Tarlogic	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	51-200	123 contacts →
	Partial evidence “Tarlogic is an international company that specializes in cyber intelligence and cybersecurity.” Source: RevenueBase Database · checked Sep 21, 2026
6	A2secure	Partial evidence	Barcelona, SpainHQ checked Sep 21, 2026	51-200	114 contacts →
	Partial 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 Sep 21, 2026
7	Sofistic Cybersecurity	Partial evidence	Castellón De La Plana, SpainHQ checked Sep 21, 2026	201-500	110 contacts →
	Partial evidence “IT Security Consulting and Deployment- Sofistic is a cybersecurity company, born from researchers in this field, with offices in USA, Spain, Panama, Colombia, Chile and the…” Source: RevenueBase Database · checked Sep 21, 2026
8	Innotec Security	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	501-1,000	106 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 Sep 21, 2026
9	Hispasec	Indirect evidence	Málaga, SpainHQ checked Sep 21, 2026	51-200	68 contacts →
	Indirect evidence “Hispasec juega un papel fundamental en la historia de la ciberseguridad en España desde que nacimos hace 25 años.” Source: RevenueBase Database · checked Sep 21, 2026
10	Titanium Industrial Security S.L	Indirect evidence	San Sebastián, SpainHQ checked Sep 21, 2026	11-50	44 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
11	ZEPO	Indirect evidence	Ciudad Real, SpainHQ checked Sep 21, 2026	11-50	38 contacts →
	Indirect evidence “The average cost of a data breach to your business can range from to $1.24 million.” Source: RevenueBase Database · checked Sep 21, 2026
12	Madcoms Networks	Indirect evidence	Barcelona, SpainHQ checked Sep 21, 2026	11-50	32 contacts →
	Indirect evidence “Madcoms serves companies from all sectors helping them to secure their communications and network infrastructures with the most appropriate technology and advanced design…” Source: RevenueBase Database · checked Sep 21, 2026
13	Minery Report	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial 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 Sep 21, 2026
14	Beonesec Cybersecurity	Partial evidence	Sevilla, SpainHQ checked Sep 21, 2026	11-50	22 contacts →
	Partial evidence “BeOneSec Cybersecurity Solutions somos una empresa dedicada exclusivamente a la prestación de servicios y/o productos de ciberseguridad de alta especialización.” Source: RevenueBase Database · checked Sep 21, 2026
15	Hard2bit Cybersecurity	Indirect evidence	Leganés, SpainHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “Hard2bit ayuda a empresas de todos los sectores a reducir riesgo tecnológico y elevar su nivel de ciberseguridad con un enfoque técnico, práctico y orientado a negocio.” Source: RevenueBase Database · checked Sep 21, 2026
16	Tecnek Ciberseguridad	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “Expertos en seguridad de la información con amplia experiencia en el sector ubicados en Madrid.” Source: RevenueBase Database · checked Sep 21, 2026
17	Cibertrs	Indirect evidence	Valencia, SpainHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “Somos un equipo multidisciplinar de 35 profesionales, entre expertos y colaboradores, con una sólida trayectoria en ciberseguridad y una base tecnológica respaldada por nuestro…” Source: RevenueBase Database · checked Sep 21, 2026
18	Ciberso	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	1,001-5,000	14 contacts →
	Indirect evidence “Ciberso nace para responder a los desafíos de seguridad que la digitalización acelerada y los nuevos modelos de negocio traen consigo sobre aplicaciones, infraestructuras, datos y…” Source: RevenueBase Database · checked Sep 21, 2026
19	Cross Mind Technology	Partial evidence	San Sebastián De Los Reyes, SpainHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “At Cross Mind, we understand that every company has unique cybersecurity needs.” Source: RevenueBase Database · checked Sep 21, 2026
20	CYBER	Partial evidence	Barcelona, SpainHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “cyber & is a company specializing in cybersecurity and digital resilience services, designed to protect business growth in complex environments.” Source: RevenueBase Database · checked Sep 21, 2026
21	Synergial Cybersecurity	Indirect evidence	Olesa De Montserrat, SpainHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “Synergial s’especialitza a oferir solucions avançades de ciberseguretat per protegir les empreses davant d’una àmplia varietat d’amenaces digitals.” Source: RevenueBase Database · checked Sep 21, 2026
22	Cibersare	Indirect evidence	Barakaldo, SpainHQ checked Sep 21, 2026	1-10	8 contacts →
	Indirect evidence “Bienvenidos a Cibersare, una empresa de ciberseguridad especializada en PYMES.” Source: RevenueBase Database · checked Sep 21, 2026
23	Estratec360	Indirect evidence	Barcelona, SpainHQ checked Sep 21, 2026	11-50	6 contacts →
	Indirect evidence “Ayudamos a empresas a proteger su información y su negocio con un servicio personalizado, ágil y efectivo \| Ciberseguridad \| Protección del dato \| Ciberinteligencia \|…” Source: RevenueBase Database · checked Sep 21, 2026
24	Seguridad SI	Indirect evidence	Murcia, SpainHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “En Seguridad se prestan servicios expertos de ciberseguridad, tanto defensivos como ofensivos.” Source: RevenueBase Database · checked Sep 21, 2026
25	Technorizon Group	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	51-200	5 contacts →
	Indirect evidence “Technorizon group has been supplying IT security solutions and services across public and private sectors since 1996.” Source: RevenueBase Database · checked Sep 21, 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: utilities 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 utilities cybersecurity companies.
Partial evidence: Its own public description names part of utilities cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name utilities 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 68 utilities cybersecurity companies based in Spain

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Utilities cybersecurity companies based in Spain at a glance

As of Sep 21, 2026

15.7%Verified-email coverage

34.5Average contacts per company

11-50Median size (employees)

25.0%Largest-city concentration · Madrid

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 68 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 utilities 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 “utilities 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 utilities 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 utilities 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, 368 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 21, 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 utilities cybersecurity 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 utilities cybersecurity companies are there based in Spain?

RevenueBase identified 68 utilities cybersecurity 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?

S2grupo, headquartered in Valencia, tops this list with the largest team on record.

Which city has the most utilities cybersecurity companies?

Madrid leads with 17 headquartered companies, followed by Barcelona (12) and Valencia (5).

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 368 verified decision-maker contacts tracked across these 68 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 21, 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.