Sean O'Sulllivan, Related Person at SOSV IndieBio Genesis Consortium III, L.P., Princeton — verified investor profile. See sector focus and stage focus.
Sean O’Sullivan is the founder and managing partner of SOSV, a venture capital firm headquartered in Princeton, New Jersey, that operates the IndieBio Genesis Consortium III, L.P. accelerator focused on deep-tech startups. His investment thesis targets very early-stage companies in human and planetary health, including climate tech and biotechnology, with global programs in locations such as New York, San Francisco, and Shenzhen. SOSV typically writes check sizes of $250,000 to $500,000 at the seed stage for startups entering its IndieBio and HAX programs, often acting as a lead investor in these pre-seed and seed rounds. Notable portfolio companies include Sun Genomics, which O’Sullivan serves on the board of, as well as Khan Academy and other deep-tech ventures developed through SOSV’s accelerator programs. O’Sullivan distinguishes his approach by running world-leading startup development programs that generate over $2 billion in new market capitalization annually, writing larger checks than traditional accelerators while supporting startups from inception. He has publicly emphasized funding the “clean future” and views SOSV’s model as pioneering d
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