A3Sec
Track on RadarCybersecurity services firm offering threat management, SecDevOps, and risk visibility.
- Total raised
- —
- Employees
- 123
- Founded
- 2012
- Momentum
- —
Data updated August 2026
About
About A3Sec
At a glance
A3Sec is a cybersecurity company specializing in Attack Surface, founded in 2012 and headquartered in Madrid, Spain. It employs about 123 people and is privately held.
A3Sec is a cybersecurity services company operating primarily in Spanish-speaking markets, including Spain and Mexico. The company focuses on helping organizations manage and improve their security posture through a combination of managed services, consulting, and proprietary solutions. A3Sec offers a range of cybersecurity services structured around four operational disciplines: Red Team (attack surface visibility, asset identification, and vulnerability assessment), Threat Hunting (anomaly detection and incident response), SecDevOps (security automation and integration into DevOps pipelines), and Data Science (machine learning models for pattern and anomaly detection). One of the company's notable offerings is the Kaos Data Threat Service, a platform designed to aggregate security information from multiple sources — including vulnerability reports, pentesting results, and threat intelligence — to provide a unified risk view. This service contextualizes vulnerabilities against active threats relevant to a company's sector and geography, and is intended to present risk in a format understandable at the executive and board level. A3Sec also provides guidance on security organizational structure, referencing frameworks such as the Gartner CARTA model to help CISOs align cybersecurity strategy with broader business objectives. The company engages its target audience through community-oriented events such as "Coffee with CISOs" and "Talking About Cybersecurity," which are used to gather market insight and refine service offerings. The company operates on a data-driven philosophy, emphasizing automation, adaptive security, and threat-centric (rather than purely vulnerability-centric) approaches to enterprise security management.
Momentum
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Valuation
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Funding
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Privately held
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Headcount
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FAQ
Frequently asked questions about A3Sec
When was A3Sec founded?▾
A3Sec was founded in 2012.
Where is A3Sec headquartered?▾
A3Sec is headquartered in Madrid, Spain.
Is A3Sec public or private?▾
A3Sec is a privately-held company.
How many employees does A3Sec have?▾
A3Sec has approximately 123 employees.
What does A3Sec do?▾
A3Sec is a cybersecurity services company operating primarily in Spanish-speaking markets, including Spain and Mexico. The company focuses on helping organizations manage and improve their security posture through a combination of managed services, consulting, and proprietary solutions. A3Sec offer…