Billy Evans

Billy Evans is the partner of Theranos founder Elizabeth Holmes and the father of their two children. He is the CEO and founder of Haemanthus, a biotech startup founded in 2022 that is developing an AI-driven diagnostic device using Raman spectroscopy to test blood, urine, and saliva. He is best known for his relationship with Holmes, whom he has supported through her fraud conviction and ongoing federal prison sentence, and for his appearance in the 2026 documentary "You Can See Everything." He holds a bachelor of science in economics from MIT and previously worked at companies including LinkedIn and Luminar Technologies.