Company lists · Data refreshed September 2026

Top 25 Web application security companies based in Spain

Name: Web application security 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 87 companies tracked

RevenueBase identified 87 web application security companies headquartered in Spain as of September 2026 and tracks 1,271 professional contacts across them, including 202 with verified work emails. Madrid is the largest hub.

This list covers web application security 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

87Companies

1,271Contacts tracked

202Verified emails

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The 25 largest web application security companies based in Spain

Ranked by team size

Top 25 of 87 web application security 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 web application security 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	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
2	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
3	Tarlogic	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	51-200	123 contacts →
	Indirect evidence “Tarlogic is an international company that specializes in cyber intelligence and cybersecurity.” Source: RevenueBase Database · checked Sep 21, 2026
4	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
5	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
6	Lazarus Technology	Indirect evidence	San Sebastián De Los Reyes, SpainHQ checked Sep 21, 2026	51-200	43 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
7	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
8	Transparent Edge	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “Transparent Edge es una empresa de ciberseguridad que protege sitios web y API.” Source: RevenueBase Database · checked Sep 21, 2026
9	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
10	Hack By Security	Indirect evidence	Madrid / Segovia / Guadalajara / Málaga / Valencia / Asturias, SpainHQ checked Sep 21, 2026	11-50	18 contacts →
	Indirect evidence “Somos un equipo con más de 20 años de experiencia especializado en servicios de Ciberseguridad y Ethical Hacking.” Source: RevenueBase Database · checked Sep 21, 2026
11	Geserisk Centro DE Gestión DE LA Seguridad Y EL Riesgo Cibernético	Indirect evidence	Bormujos, SpainHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “Soluciones y servicios gestionados de ciberseguridad para organizaciones que no pueden permitirse parar.” Source: RevenueBase Database · checked Sep 21, 2026
12	ZEROD	Partial evidence	Barcelona, SpainHQ checked Sep 21, 2026	11-50	11 contacts →
	Partial evidence “Premium Security Testing & Compliance.” Source: RevenueBase Database · checked Sep 21, 2026
13	Dedge Security	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	1-10	11 contacts →
	Partial evidence “Dedge is the first Web3 security posture management solution for the new ecosystem.” Source: RevenueBase Database · checked Sep 21, 2026
14	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
15	Cibinar	Indirect evidence	Murcia, SpainHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “Somos una consultora tecnológica especializada en ciberseguridad e inteligencia artificial.” Source: RevenueBase Database · checked Sep 21, 2026
16	Blackdogs	Indirect evidence	Barcelona, SpainHQ checked Sep 21, 2026	1-10	8 contacts →
	Indirect evidence “Somos una Startup tecnológica dedicada a la ciberseguridad y a la creación de soluciones integrales y personalizadas.” Source: RevenueBase Database · checked Sep 21, 2026
17	Bytehide	Partial evidence	Valencia, SpainHQ checked Sep 21, 2026	11-50	6 contacts →
	Partial evidence “ByteHide is the Runtime AI Security Platform.” Source: RevenueBase Database · checked Sep 21, 2026
18	Bcnsoluciona Ciberseguridad E IA	Indirect evidence	Barcelona, SpainHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “Las organizaciones se enfrentan hoy a un doble reto: proteger sus activos digitales y aprovechar las oportunidades que ofrece la Inteligencia Artificial sin comprometer la…” Source: RevenueBase Database · checked Sep 21, 2026
19	Ginzo Technologies	Indirect evidence	Logroño, SpainHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “Qué podemos hacer por mejorar la seguridad de tu empresa?” Source: RevenueBase Database · checked Sep 21, 2026
20	AO Data Cloud	Indirect evidence	Sabadell, SpainHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “AO Data Cloud es una empresa especializada en infraestructura IT y servicios de ciberseguridad.” Source: RevenueBase Database · checked Sep 21, 2026
21	Cibersegura	Indirect evidence	Segovia, SpainHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Cibersegura es una empresa de CIBERSEGURIDAD que nace de la experiencia y el buen hacer de su empresa raíz Quick Click Spain, S.L con más de 11 años de experiencia en el sector de…” Source: RevenueBase Database · checked Sep 21, 2026
22	Alisec Soluciones S.L	Indirect evidence	Llanera, SpainHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “Somos una empresa especializada en ciberseguridad, con amplia experiencia en proyectos de análisis del estado de nuestros clientes, identificación de puntos débiles y mejora de…” Source: RevenueBase Database · checked Sep 21, 2026
23	Asperis Security	Partial evidence	Barcelona, SpainHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “En Asperis Security somos expertos en ciberseguridad ofensiva, especializados en servicios de pentesting.” Source: RevenueBase Database · checked Sep 21, 2026
24	Jáquers Ciberseguridad	Partial evidence	Alicante, SpainHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Auditorías de Ciberseguridad Pentesting (test de penetración) Auditorias web Formación” Source: RevenueBase Database · checked Sep 21, 2026
25	Sg6	Partial evidence	Murcia, SpainHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “SG6 is a company specifically focused in information security solutions and IT best practices services.” 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: web application security 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 web application security companies.
Partial evidence: Its own public description names part of web application security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name web application security 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 87 web application security companies based in Spain

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Web application security companies based in Spain at a glance

As of Sep 21, 2026

15.9%Verified-email coverage

14.6Average contacts per company

1-10Median size (employees)

32.2%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 87 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 web application security 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 “web application security 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 web application security 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 web application security 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, 202 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.

Web application security companies by metro

Web application security companies in Madrid28

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 web application security 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 web application security companies are there based in Spain?

RevenueBase identified 87 web application security 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?

Alhambra IT, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most web application security companies?

Madrid leads with 28 headquartered companies, followed by Barcelona (14) 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 202 verified decision-maker contacts tracked across these 87 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.