Six months from founding to production deployment across some of the world’s largest enterprises. While legacy security vendors take weeks to write detection rules that attackers bypass in hours, Artemis emerged from stealth with $70M and a fundamentally different approach: AI agents that model each customer’s environment, generate custom detections, and autonomously investigate threats at machine speed. One early customer cut investigation time from hours to under five minutes. The founders previously built the detection engines behind Amazon GuardDuty and Abnormal Security, and this is their third iteration built from scratch.