The problem
Annual pen tests and scanners can't keep pace with AI-speed attackers chaining small weaknesses into breaches
What they do
Swarms of autonomous AI attacker agents that continuously red-team enterprise and government networks
Traction In production with Fortune 500 and government customers; no revenue or customer count disclosed
Hiring trend
- Open roles
- 25
- Headcount
- ~130-150
0 to ~130-150 staff since Sep 2025 founding (LinkedIn ~131, Tracxn 148); 25 open roles
Hiring in
- Palo Alto
- Washington, DC
- Remote (Mexico)
Latest news
Oct 2026
Raised $255.5M Series B co-led by a16z and Accel at >$2.5B valuation; $445M total ↗Funding
- Last round
- $255.5M
- Stage
- Series B
- Date
- Oct 2026
Led by Andreessen Horowitz, Accel
- Hiring+1.525 open roles on the live job board (10–29 roles = +1.5)
- Funding recency+2Series B · $255.5M, Oct 2026 (this month): 6 months or less = +1.5, $100M+ round +0.5
- Traction+0.75Some growth: In production with Fortune 500 and government customers; no revenue or customer count disclosed
- Red flags0None found in the last 24 months
- Total4.251.5 + 2 + 0.75 − 0 = 4.25 → Race (4.25–4.74)
Distance (Unproven) is a separate read on how long the lead can last. It doesn't change the score.
Distance
Unproven · edge: learns from use
Founder pedigree and $445M raised in seven months, but launched Mar 2026 with no disclosed revenue or customer count, against established rivals like Horizon3.ai and Synack.
Sources: SecurityWeek: Armadin raises $255M at $2.5B valuation (Oct 2026) ↗ · TechCrunch: Armadin raises $255.5M at $2.5B (Oct 2026) ↗
Open ops roles
No ops roles open right now
Last checked Oct 25, 2026