Joe Betts-LaCroix

Joe Betts-LaCroix is the co-founder and CEO of Retro Biosciences, a San Francisco longevity biotech on a mission to add 10 healthy years to the human lifespan. A scientist-turned-serial-entrepreneur who once held a Guinness World Record for building the world's smallest Windows PC, he now leads a company backed by OpenAI's Sam Altman, valued at $1.8 billion in 2026, that has run an Alzheimer's clinical trial and co-developed a longevity-focused AI model with OpenAI. He came to biology by an unlikely route: a D-average high schooler who tinkered in shared houses, then earned straight A's, transferred to Harvard, and did research at MIT and Caltech before co-discovering principles of electron transfer in proteins.