Thu, Oct 1, 2026 · 7:27 PM ET

Kevin Mandia’s Armadin Raises $255 Million at $2.5 Billion Valuation

First reported by SecurityWeek at 7:40 AM ET · Updated 5:55 PM · 3 sources

Armadin, the security startup led by Mandiant founder Kevin Mandia, closed a Series B of about $255.5 million that values it above $2.5 billion. Andreessen Horowitz and Accel co-led, with GV, Kleiner Perkins and Menlo Ventures also investing. The company uses swarms of AI agents to test and protect enterprise systems.

  • Total funding reaches roughly $445 million, according to SecurityWeek.
  • The round comes seven months after Armadin's public launch, SecurityWeek reports.
  • GV is Alphabet's startup investment fund.

Summary by Front Scoop from 3 sources.

Reporting3

SiliconANGLE Armadin nabs $255.5M to detect vulnerabilities with AI agent swarms · Maria Deutscher