
A3Sec
A3Sec is a cybersecurity company specializing in Security Operations, founded in 2012 and headquartered in Madrid, Spain. It employs about 124 people and is privately held.
updated Oct 4, 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 Momentum score
35/ 100
Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.
A3Sec employees and hiring
A3Sec has about 124 employees, down 1% over the last 30 days.
- Employees
- 124
- 30-day change
- -1%
- 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



