Armadin announced a $255.5 million Series B on October 1, co-led by Andreessen Horowitz and Accel. Bain Capital Ventures and Redpoint joined, alongside returning investors. The company reports a valuation above $2.5 billion and total funding of $445 million.
Financing an agent-based security platform
The company plans to expand its platform, research, model training and go-to-market work. Its agents seek linked, exploitable attack paths rather than treating weaknesses in isolation. That is the product proposition; funding and investor endorsement do not establish its effectiveness.
SecurityWeek independently reports the round, valuation and co-leads. Customer deployments and broad claims about offensive capability remain company disclosures rather than independently audited outcomes.