Kevin Mandia’s Armadin Raises $255 Million at $2.5 Billion Valuation
Kevin Mandia's AI-native security startup Armadin raised $255.5 million Series B at a $2.5 billion-plus valuation, bringing total funding to $445 million.
Armadin, the agentic security company founded by Mandiant creator Kevin Mandia, raised $255.5 million in Series B funding co-led by Andreessen Horowitz and Accel, with participation from Bain Capital Ventures and Redpoint. The round values the Palo Alto company above $2.5 billion just seven months after its public launch with $189.9 million. Armadin's platform deploys AI agent swarms that probe attack surfaces and chain minor flaws into validated attack paths, and is already running production campaigns for Fortune 500 and government customers.
- Series B co-led by a16z and Accel; total raised now $445 million since March 2026 launch
- Agentic platform chains minor weaknesses into validated attack paths from internet-facing entry points
- August exercise with TENEX.ai ran 1,300 attacks with 26,000 agents and ~17 million offensive actions
- Exercise produced 238 findings, 98 significant, chained into 38 validated attack paths
From the original article
2 min read at securityweek.com
The Series B brings the AI-powered offensive security startup’s total funding to roughly $445 million only seven months after its public launch. The post Kevin Mandia’s Armadin Raises $255 Million at $2. 5 Billion Valuation appeared first on SecurityWeek.
By Mike Lennon · securityweek.com
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