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Armadin, started by Mandiant founder Kevin Mandia to build AI cybersecurity agents, raised a $255.5M Series B led by a16z and Accel at a $2.5B valuation (Anzar Mehraj/Reuters)

This story is from 2026-10-01. It is preserved in the archive; the latest stories are on the live feed.

Anzar Mehraj / Reuters : Armadin, started by Mandiant founder Kevin Mandia to build AI cybersecurity agents, raised a $255.5M Series B led by a16z and Accel at a $2.5B valuation Armadin said on Thursday that it raised $255.5 million in a Series B funding round, which values the AI cybersecurity com…

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Timeline · 3 reports

  1. 2026-10-01 14:50 · Techmeme
    Miami-based Doxx.net, whose platform enables serverless P2P calling, messaging, and file transfers for humans and AI agents, raised a $38M Series A led by a16z (Chris Metinko/Axios)
  2. 2026-10-01 11:40 · Techmeme
    Armadin, started by Mandiant founder Kevin Mandia to build AI cybersecurity agents, raised a $255.5M Series B led by a16z and Accel at a $2.5B valuation (Anzar Mehraj/Reuters)
  3. 2026-10-01 10:25 · Unite.AI
    Armadin Raises $255.5M Series B at Over $2.5B Valuation to Scale Its Agentic Security Platform

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