Armadin raised $255.5M Series B led by a16z and Accel at a $2.5B valuation
Armadin, founded by Mandiant founder Kevin Mandia to build AI cybersecurity agents, announced on Thursday that it raised $255.5 million in a Series B funding round. The round was led by a16z and Accel and values the company at more than $2.5 billion. The funding supports the development of AI-powered cybersecurity tools.
Key points
- Armadin raised $255.5 million in a Series B funding round
- The round was led by a16z and Accel
- The company is valued at more than $2.5 billion
Armadin Raises $255.5M Series B at Over $2.5B Valuation to Scale Its Agentic Security Platform
Unite.AI · 1 October 2026
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