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.
Andre Esteva, PhD, is the co-founder and CEO of ArteraAI, a medical AI company whose test for personalizing prostate cancer therapy is included in NCCN clinical guidelines, reimbursed by Medicare, and deployed internationally. A Stanford-trained AI scientist whose Nature cover paper first demonstrated that AI could match dermatologists at diagnosing skin cancer, Esteva has co-founded four companies with a combined market cap of $2.2B. Named to TIME100 Health 2025 and Modern Healthcare's 40 Under 40 for 2025, he leads a company that raised $175M total and was named a TIME 2024 Best Invention.
Ziad Obermeyer is a physician-scientist and professor at UC Berkeley whose 2019 Science paper exposing racial bias in a healthcare algorithm used by millions changed how the world thinks about AI fairness. An emergency medicine doctor who moonlights as a machine learning researcher, McKinsey alum, and serial founder, Obermeyer co-founded Dandelion Health and Nightingale Open Science while testifying before Congress and earning a spot on TIME's 100 Most Influential People in AI.