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Oct 1, 2026

Kevin Mandia's cybersecurity startup Armadin raises $255.5 million at $2.5 billion valuation

Armadin, founded by former Mandiant CEO Kevin Mandia, raised $255.5 million in Series B funding at a valuation exceeding $2.5 billion. The startup uses AI agents to identify security vulnerabilities that cybercriminals are most likely to exploit.

Oct 1, 2026·4 sources
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Top claims

  • ▪Armadin founder Kevin Mandia previously founded the cybersecurity firm Mandiant, which he sold to Google for $5.4 billion in 2022
  • ▪Armadin was founded approximately one year prior to October 2026 by CEO Kevin Mandia
  • ▪Armadin's Series B funding round was co-led by Andreessen Horowitz and Accel, with participation from Bain Capital Ventures, Redpoint, 8VC, Ballistic Ventures, Google Ventures, In-Q-Tel, Kleiner Perkins, and Menlo Ventures

Topics

Vulnerability managementAI agentsAI startupsAI cybersecurity