Company record
Armadin
Updated October 19, 2026 · Presspool
Armadin is an AI-native cybersecurity company that runs an autonomous swarm of specialized agents to find and chain an organization's exploitable weaknesses. armadin.com
Funding
Latest announced financing: $255.5 million, Series B, led by Andreessen Horowitz and Accel, announced October 1, 2026.
- $255.5 million Series B, announced October 1, 2026. Led by Andreessen Horowitz and Accel. Valuation: over $2.5 billion. Listed in the AI startup funding roster for September 28, 2026 – October 3, 2026. Sources: PR Newswire, TechCrunch.
Of the 25 Series B rounds announced in dollars on Presspool's weekly rosters since September 21, 2026, Armadin's $255.5 million is the largest; their median is $52.5 million.
Whether AI names Armadin
- Machine Relations Index: Not cited in any Machine Relations Index answer, May 10, 2026 to October 18, 2026.
Related records
Closest rounds in the roster for September 28, 2026 – October 3, 2026: GMI Cloud ($223 million Series B, September 30, 2026), Flow Engineering ($50 million Series B, September 30, 2026), Miter ($40 million Series B, September 30, 2026), Outmarket AI ($34.5 million Series B, September 28, 2026), General Intuition ($220 million, round type not disclosed, September 29, 2026), PaleBlueDot AI ($200 million Series C, October 1, 2026).
Andreessen Horowitz, which led this round, also led Eka Robotics ($150M Series A, October 20, 2026), TypeSafe AI ($870 million Series A, October 9, 2026), Ghost ($11 million Seed, October 5, 2026), Aleph ($7.5 million Pre-seed, September 30, 2026), EliseAI ($350 million, round type not disclosed, September 29, 2026) and Cognition ($2B Series E, September 8, 2026). 3 more of its rounds are on its page.
Accel, which led this round, also led Arda Industries ($160 million Series A, October 20, 2026), Dodge AI ($2.65 million, round type not disclosed, September 29, 2026), Cognition ($2B Series E, September 8, 2026), RadixArk ($100 million Seed, May 5, 2026), Kernel ($22M Seed and Series A (combined), October 9, 2025) and Synthflow AI ($20M Series A, June 25, 2025). 3 more of its rounds are on its page.