Anirudh Joshi

Anirudh Joshi is the co-founder and CEO of Valar Labs, a Palo Alto-based AI oncology company building tools that let doctors predict whether a specific cancer treatment will work before a patient wastes months on the wrong one. A biomedical engineer trained at Georgia Tech and Stanford, he previously built AI at Microsoft, PathAI, and Curai before co-founding Valar in 2021 with teammates from Stanford's AI in Medicine group. Valar raised $26M total, landing a $22M Series A from Andreessen Horowitz and DCVC in 2024, and its flagship test Vesta — predicting BCG therapy response in bladder cancer — is now live at 20 U.S. hospitals. Named to Forbes 30 Under 30 Healthcare 2025.