Function Health
Function Health is an Aging Diagnostics & Biomarkers company founded in 2022 and based in Austin, United States. It has raised $350M in total funding, most recently a Series B in 2025 at a $2.5B valuation.
Founded in 2022 and headquartered in Austin, Texas, Function Health offers a membership that gives consumers more than 100 lab biomarker tests, advanced whole-body MRI and CT imaging, and longitudinal health tracking, with AI-assisted interpretation. Co-founders include Jonathan Swerdlin and functional-medicine physician Mark Hyman, and the company aims to make comprehensive lab and imaging data accessible and understandable to individuals. In November 2025 Function raised a $298M Series B led by Redpoint Ventures at a $2.5B valuation, with participation from a16z, Battery Ventures, and NFDG, bringing total funding to roughly $350M; it concurrently lowered membership pricing and launched a Medical Intelligence Lab.
Rapidly scaled consumer access to comprehensive biomarker and imaging data, becoming one of longevity's most valuable companies on a preventive-diagnostics thesis.
functionhealth.com ↗·Aging Diagnostics & Biomarkers·
United States·private 
