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, its RevenueBase Smart Search rating, 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 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.
The 25 largest security audit firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 145 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 114 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 Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 64 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 Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 48 contacts → | ||||
Indirect evidence “At Ackcent, we focus exclusively on cybersecurity and on delivering outcomes our clients can measure.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 42 contacts → | ||||
Indirect evidence “Experts in #Cybersecurity.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 30 contacts → | ||||
Indirect evidence “LEGITEC es una organización de ámbito nacional, fundada e impulsada por varias empresas especializadas en ofrecer servicios relacionados con el cumplimiento normativo y…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 30 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 Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 22 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Indirect evidence “Expertos en seguridad de la información con amplia experiencia en el sector ubicados en Madrid.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 20 contacts → | ||||
Indirect evidence “Empresa de servicios informáticos dedicada a la tecnología de la información y las comunicaciones.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 19 contacts → | ||||
Partial evidence “ACFYD ANÁLISIS` expertise is based on performing internal audits in leading companies in Spain for more than 10 years now.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Partial evidence “Premium Security Testing & Compliance.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “Canaudit S.L.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Indirect evidence “Especialistas en Seguridad Gestionada / Protección de Datos • Servicios Centro Operaciones de Seguridad HYPATIA • Servicios Centro de Operaciones de Red CENTINEL • Auditorias…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect 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 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 contacts → | ||||
Indirect evidence “Bienvenidos a Cibersare, una empresa de ciberseguridad especializada en PYMES.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “Sociedad de auditoria de Cuentas.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
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: security audit firms. 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 security audit firms.
- Partial evidence
- Its own public description names part of security audit firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security audit firms. 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 133 security audit firms based in Spain
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 137 reachable decision-makers.
Free signup · no credit card
Security audit firms based in Spain at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 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 “security audit firms”. 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 security audit firms), 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 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 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, 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
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 security audit firms, 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 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.
Ready to reach these companies? Verified emails and direct dials for all 133 security audit firms based in Spain. Start with a free account, no credit card.
Download this list →Related lists
Security audit firms by geography
- Security audit firms based in the United States
- Security audit firms based in the United Kingdom
- Security audit firms based in France
- Security audit firms based in Canada
- Security audit firms based in Germany
- Security audit firms based in Brazil
- Security audit firms based in Australia
- Security audit firms based in the Netherlands
- Security audit firms based in Poland
- Security audit firms based in South Africa
- Security audit firms based in Switzerland
- Security audit firms based in Italy
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security audit firms based in the United States
- Security audit firms based in the United Kingdom
- Security audit firms based in France
- Security audit firms based in Canada
- Security audit firms based in Germany
- Security audit firms based in Brazil