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Kevin Mandia’s new ‘agent swarm’ security startup Armadin raises $255.5M at $2.5B valuation

Publisher description: Kevin Mandia, best known as the founder of Mandiant, has a new startup that is using agent swarms to test and protect enterprises.

TechCrunch | Oct 1, 2026 | Julie Bort

Automated excerpt

Kevin Mandia, best known as the founder of cybersecurity startup Mandiant that sold it to Google for $5. 4 billion in 2022, has raised $255. 5 million for his latest startup, Armadin, at a valuation of more than $2. 5 billion, the company announced on Thursday. The Series B round was led by Andreessen Horowitz and Accel, with Bain Capital Ventures, Redpoint, 8VC, Ballistic Ventures, Google Ventures, In-Q-Tel, Kleiner Perkins, and Menlo Ventures joining in. The new round comes just six months after Armadin raised a $190 million Series A in March.

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