Who are A3Sec's competitors?

Hadrian, ZeroFox, and Praetorian are among the closest in Attack Surface. The full competitive set, with overlap scoring, is in the platform.

A3Sec

Attack SurfaceMadrid, Spainfounded 2012private

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.

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updated Sep 12, 2026

Latest A3Sec news and company activity

What A3Sec did, dated — selected moves from the record, one per kind, newest first.

Mar 2026PartnershipAndersen Consulting partners with Spanish groups A3Sec and Ambit Iberia

4 events tracked since Mar 2026 · selected events shownUnlock the complete A3Sec timeline

A3Sec employees and hiring

A3Sec has about 123 employees, down 3% over the last 30 days.

Employees: 123
30-day change: -3%
Open roles: 0

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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in Attack Surface

Common questions about A3Sec.

How many people work at A3Sec?: A3Sec has about 123 employees, down 3% over the last 30 days.
Who are A3Sec's competitors?: Hadrian, ZeroFox, and Praetorian are among the closest in Attack Surface. The full competitive set, with overlap scoring, is in the platform.
What does A3Sec do?: A3Sec is a cybersecurity company specializing in Attack Surface, founded in 2012 and headquartered in Madrid, Spain.