Company lists · Data refreshed September 2026
Top 25 Security audit firms based in Spain
RevenueBase identified 133 security audit firms headquartered in Spain as of September 2026 and tracks 1,284 professional contacts across them, including 137 with verified work emails and 8 with mobile numbers. Madrid is the largest hub.
This list covers security audit firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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.
The 25 largest security audit firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 145 | ||||
“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…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 114 | ||||
“A2SECURE is a global cybersecurity expert based in Spain, founded in 2009 with private capital and now established as a leading MSSP provider.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 64 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 63 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 48 | ||||
“At Ackcent, we focus exclusively on cybersecurity and on delivering outcomes our clients can measure.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 42 | ||||
“Experts in #Cybersecurity.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | ZEPOIndirect evidence | 38 | |||
“The average cost of a data breach to your business can range from to $1.24 million.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 37 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 30 | ||||
“LEGITEC es una organización de ámbito nacional, fundada e impulsada por varias empresas especializadas en ofrecer servicios relacionados con el cumplimiento normativo y…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 30 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 22 | ||||
“Mejoramos los niveles de seguridad de nuestros clientes, protegiendo la información y los servicios, para garantizar que las organizaciones operen de manera segura y en…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 21 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 | ||||
“Expertos en seguridad de la información con amplia experiencia en el sector ubicados en Madrid.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 20 | ||||
“Empresa de servicios informáticos dedicada a la tecnología de la información y las comunicaciones.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 19 | ||||
“ACFYD ANÁLISIS` expertise is based on performing internal audits in leading companies in Spain for more than 10 years now.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 | ||||
“Premium Security Testing & Compliance.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 | ||||
“Canaudit S.L.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 | ||||
“Especialistas en Seguridad Gestionada / Protección de Datos • Servicios Centro Operaciones de Seguridad HYPATIA • Servicios Centro de Operaciones de Red CENTINEL • Auditorias…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 | ||||
“cyber & is a company specializing in cybersecurity and digital resilience services, designed to protect business growth in complex environments.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 | ||||
“Bienvenidos a Cibersare, una empresa de ciberseguridad especializada en PYMES.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 | ||||
“Sociedad de auditoria de Cuentas.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | In Audit Grupo Auditor Consultor, S.L.PIndirect evidence | 5 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 133 security audit firms based in Spain
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Security audit firms based in Spain at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 security audit firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Spain whose own description of what they do matches “security audit firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security audit firms, 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 an evidence 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, 137 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 6, 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.
Security audit firms by metro
- Security audit firms in Madrid36
Frequently asked
How many security audit firms are there based in Spain?
RevenueBase identified 133 security audit firms 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?
Secure&it, headquartered in Las Rozas De Madrid, tops this list with the largest team on record.
Which city has the most security audit firms?
Madrid leads with 36 headquartered companies, followed by Barcelona (21) and Murcia (8).
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 137 verified decision-maker contacts tracked across these 133 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 6, 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.
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