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# SOSV
SOSV is a global, multi-stage venture capital firm founded in 1995 by Sean O'Sullivan, headquartered in Princeton, New Jersey. With $1.5 billion in AUM as of April 2024, SOSV invests in visionary deep tech founders. Operates HAX (hard tech) and IndieBio (biotech) startup development programs. 961+ portfolio companies, 5 unicorns, 6 IPOs, 64 acquisitions. 10 GPs and 80+ staff with offices in SF, NYC, Newark, Cork, Pune, and Singapore.
Exclusively deep tech with real-world impact. Avoids software-only/pure SaaS. Three pillars: Climate Tech (world's leading climate tech investor, $11.09B portfolio valuation), Health Tech ($6.67B portfolio valuation), Physical AI (intelligent machines that sense, decide, act). Initial checks $250K-$550K at pre-seed; follow-on through $100M Select Fund.
961+ companies funded. 5 unicorns, 6 IPOs, 64 acquisitions (DraftKings, Getaround, VideoVerse). Recent investments: Tidal Vision ($46.7M), Prolific Machines ($54.6M), unSpun ($32M), Windfall Bio ($28M), Simbe Robotics ($50M). 1,000+ co-investor network. 60 first-check pre-seed companies annually.
To approach SOSV, founders should prepare a compelling pitch that highlights their deep tech innovations. Interested parties can submit their pitches through the dedicated pitch URL: https://sosv.com/will-sosv-invest-in-your-company/ or contact them directly via email at contact@sosv.com.
SOSV operates the HAX and IndieBio programs, which provide startup development resources, including lab space, engineering support, and access to a vast network of co-investors. These programs are designed to accelerate the growth of deep tech companies in hard tech and biotech sectors.
SOSV has been highly active in the past year, making 21 investments, with the most recent being Deep Root Biolabs on February 5, 2026. The firm continues to expand its portfolio, focusing on deep tech startups that address critical challenges in climate and health.
SOSV invests in Pre Seed, Seed, Series A, and Series B stages.
Founders can pitch SOSV through their website at this link or via email at contact@sosv.com.
SOSV focuses on biotech, climate tech, healthcare, industrial automation, robotics, and frontier technologies.
SOSV's check sizes range from $100K to $2M, with initial checks typically between $250K and $550K.
SOSV invests globally, with a strong presence in the United States, India, Europe, and Southeast Asia.
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