Function Health is a health technology company founded in 2022 by Jonathan Swerdlin and Mark Hyman, M.D. Function Health provides a health empowerment platform that offers individuals access to over 160 lab tests and personalized insights from doctors to help them monitor and optimize their health. The company's mission is to empower people to live 100 healthy years by combining routine whole-body lab testing with expert medical guidance.
Jonathan Swerdlin is the CEO and Co-Founder, and Mark Hyman, M.D., is the Chief Medical Officer and Co-Founder. The company's leadership team brings together expertise in healthcare, science, operations, and technology. Function Health launched in 2023 and is based in Austin, TX. Function Health operates in the healthcare industry, specifically in laboratory services and health technology.
Function Health offers a membership-based platform that gives consumers access to more than 160 biomarker lab tests. These tests assess various aspects of health, including heart function, hormones, thyroid, nutrients, cancer signals, immunity, aging factors, and autoimmunity. Function Health claims its testing service includes six times more lab testing than most primary care providers. In November 2025, Function Health secured nearly $300 million in Series B funding, which increased the company's valuation to $2.5 billion. The company also announced it lowered its membership price to $365 a year, down from $499. Function Health has also launched integration with Claude, enabling members to receive health guidance grounded in their own results.