Company lists · Data refreshed August 2026

Top 25 Application security companies based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 216 companies tracked

RevenueBase identified 216 application security companies headquartered in Spain as of August 2026 and tracks 3,344 professional contacts across them, including 788 with verified work emails and 92 with mobile numbers. Madrid is the largest hub.

This list covers 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 August 31, 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 31, 2026 86% judged on-target in blind review

216Companies

3,344Contacts tracked

788Verified emails

92Mobile numbers

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The 25 largest application security companies based in Spain

Ranked by team size

Top 25 of 216 application security companies based in Spain, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to 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	Advens	Indirect evidence	Barcelona, Spain	501-1,000	588 contacts →
	Indirect evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Aug 31, 2026
2	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 31, 2026
3	S21sec	Partial evidence	Madrid, Spain	201-500	192 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 Aug 31, 2026
4	Attackiq	Partial evidence	Barcelona, Spain	51-200	158 contacts →
	Partial evidence “AttackIQ® is trusted by top organizations worldwide to validate security controls in real time.” Source: RevenueBase Database · checked Aug 31, 2026
5	A3sec	Indirect evidence	Madrid, Spain	51-200	122 contacts →
	Indirect evidence “Empresa de Ciberseguridad soportada en Datos.” Source: RevenueBase Database · checked Aug 31, 2026
6	Tarlogic	Indirect evidence	Spain	51-200	122 contacts →
	Indirect evidence “Tarlogic is an international company that specializes in cyber intelligence and cybersecurity.” Source: RevenueBase Database · checked Aug 31, 2026
7	A2secure	Indirect evidence	Madrid, Spain	51-200	115 contacts →
	Indirect 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 31, 2026
8	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 31, 2026
9	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 31, 2026
10	Hispasec	Indirect evidence	Malaga, Spain	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 Aug 31, 2026
11	Neverhack Spain	Indirect evidence	Barcelona, Spain	51-200	65 contacts →
	Indirect 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 Aug 31, 2026
12	Jtsec Beyond IT Security	Indirect evidence	Granada, Spain	11-50	63 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Aug 31, 2026
13	Bedisruptive	Indirect evidence	Madrid, Spain	51-200	54 contacts →
	Indirect 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 Aug 31, 2026
14	Atalanta Cybersecurity & Digital	Indirect evidence	Madrid, Spain	51-200	49 contacts →
	Indirect evidence “Atalanta is a company specialising in cybersecurity, digital transformation and training.” Source: RevenueBase Database · checked Aug 31, 2026
15	Build38	Indirect evidence	Barcelona, Spain	51-200	48 contacts →
	Indirect evidence “On March 2, 2026, OneSpan and Build38 came together to strengthen OneSpan’s core objective of protecting high-value mobile interactions.” Source: RevenueBase Database · checked Aug 31, 2026
16	Ackcent Cybersecurity	Indirect evidence	Spain	51-200	48 contacts →
	Indirect evidence “At Ackcent, we focus exclusively on cybersecurity and on delivering outcomes our clients can measure.” Source: RevenueBase Database · checked Aug 31, 2026
17	Lazarus Technology	Indirect evidence	San Sebastian De Los Reyes, Spain	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 Aug 31, 2026
18	Zepo Intelligence	Indirect evidence	Madrid, Spain	11-50	39 contacts →
	Indirect evidence “The average cost of a data breach to your business can range from to $1.24 million.” Source: RevenueBase Database · checked Aug 31, 2026
19	Zerolynx	Partial evidence	Alcorcon, Spain	51-200	37 contacts →
	Partial evidence “Zerolynx, operating within a NIST-based framework, combines offensive security expertise with a strong focus on Governance, Risk, and Compliance (GRC) to help organizations…” Source: RevenueBase Database · checked Aug 31, 2026
20	Apolo Cybersecurity	Indirect evidence	Barcelona, Spain	11-50	37 contacts →
	Indirect evidence “Somos expertos en ciberseguridad impulsada por IA.” Source: RevenueBase Database · checked Aug 31, 2026
21	Madcoms Networks	Indirect evidence	Barcelona, Spain	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 Aug 31, 2026
22	Xygeni	Partial evidence	Madrid, Spain	11-50	31 contacts →
	Partial evidence “Xygeni Security protects software from code to cloud with a single platform built for ASPM.” Source: RevenueBase Database · checked Aug 31, 2026
23	Optimumtic	Indirect evidence	Barcelona, Spain	11-50	29 contacts →
	Indirect evidence “OptimumTIC es una empresa especialista en CiberSeguridad creada en 2009, dedicada a ofrecer servicios transversales y plataformas gestionadas de los mejores soluciones y equipo…” Source: RevenueBase Database · checked Aug 31, 2026
24	Blackarrow Tarlogic	Partial evidence	Spain	51-200	27 contacts →
	Partial evidence “BlackArrow is the Tarlogic cyber security unit specialized in offensive driven tactics learned through the experience of years providing red team services.” Source: RevenueBase Database · checked Aug 31, 2026
25	Hard2bit Cybersecurity	Indirect evidence	Leganes, Spain	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 Aug 31, 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: 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 application security companies.
Partial evidence: Its own public description names part of 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 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 216 application security companies based in Spain

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Application security companies based in Spain at a glance

As of Aug 31, 2026

23.6%Verified-email coverage

2.8%Mobile-number coverage

15.5Average contacts per company

1-10Median size (employees)

30.1%Largest-city concentration · Madrid

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

135

11-50

51-200

201-500

501-1,000

1,001-5,000

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 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 “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 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 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, 788 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 31, 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.

Application security companies by metro

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 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 application security companies are there based in Spain?

RevenueBase identified 216 application security companies headquartered in Spain as of August 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?

Advens, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most application security companies?

Madrid leads with 65 headquartered companies, followed by Barcelona (34) and Malaga (10).

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 788 verified decision-maker contacts tracked across these 216 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.