indiebio
(3)
HexemBio
HexemBio is a New York- and Berkeley-based biotech building what it calls the first blood stem cell rejuvenation therapy. Its Synthetic Human Yolk Sac platform recreates the embryonic environment where blood stem cells first arise, temporarily placing a patient's own aged hematopoietic stem cells into that synthetic young niche before returning them by IV infusion - rather than gene-editing or chemically reprogramming the cells. The company launched publicly in April 2026 with a $10.4M seed round led by Draper Associates, holds an FDA Orphan Drug Designation for a bone-marrow-transplant program in blood cancers, and is targeting first-in-human trials in 2027.
Yuyo Llamazares Vegh
Yuyo Llamazares Vegh is the CEO and Co-Founder of Stämm, a San Francisco-based biotech company reinventing biomanufacturing through miniaturized 3D-printed microfluidic bioreactors. A native of Argentina with a background in agricultural engineering and bioprocesses from the University of Buenos Aires, Yuyo co-founded Stämm in 2016 alongside his cousin Federico D'Alvia Vegh after spotting a fundamental gap between biology's potential and the outdated tools available to harness it. Stämm's platform - desktop-sized, modular, and scalable - is designed to make the production of biologics, cell therapies, and gene therapies accessible and repeatable at any scale. The company has raised over $17 million including a Series A led by Varana Capital with participation from Draper Associates and SOSV's IndieBio, and has attracted former Merck KGaA CEO Stefan Oschmann to its board. Yuyo was selected as an Endeavor Entrepreneur in 2023.
Mohan Iyer
Mohan Iyer is a General Partner at SOSV's IndieBio SF, the world's leading biotech accelerator. With 25+ years operating life science startups across Genentech, Tethys Bioscience, Second Genome, and Pendulum Therapeutics, he brings rare bench-to-boardroom experience to pre-seed biotech founders. Trained as a chemical and biomedical engineer before earning his MBA from Yale, Iyer has spent his career translating disruptive biology into products the world actually needs — and now bets on founders doing the same.