Entry stagePre-seed
Check size$500K to $1M
Leads roundsYes
FocusDeep tech, Life sciences, Healthtech, Climate, Industrial
Latest fund$306M$306M SOSV V (final close; 2024-04-16)
Investing team18 peopleNo activity since Sep
Who you would pitch at SOSV
18 people on the investing team, 14 of them partners who can make the call. Partners are listed first.
Avra van der ZeeGeneral PartnerShe previously held operational leadership roles at Elemental Impact and JUMP.
Cyril EbersweilerGeneral Partner & Managing Director, HAXHe is an experienced investor in deep tech and a board member to several startups.
Deborah ZajacGeneral PartnerShe helped scale Touchdown Ventures and worked at GE Ventures, Columbia University, and Lehigh University.
Duncan TurnerGeneral Partner & Managing Director, HAXHe previously led design and engineering strategy at IDEO and holds a Master's from the Royal College of Art & Imperial College.
Mohan S. IyerGeneral Partner
Pae WuGeneral Partner & CTOFocus: deep tech investments.
Po BronsonGeneral Partner & Managing Director, SOSV SFHe is a science journalist and author with a background in economics and finance.
Sean O'SullivanManaging General PartnerHe has since grown it into a global venture firm with 10 general partners and major offices worldwide.
Stephen ChambersGeneral Partner & Managing Director, SOSV NYHe previously worked at Vertex Pharmaceuticals, co-founded Abpro Therapeutics, and led SynbiCITE, holding a PhD in Molecular Biology.
Alex KopelyanPartner & Senior DirectorHe helps founders with operations and holds a PharmD from the University of Iowa.
Andrew GollachPartnerHe has over 10 years of engineering experience in renewable fuels and oil and gas, and holds an MBA and a BS in Chemical Engineering.
Benjamin JoffeSenior PartnerFocus: AI and automation in venture capital, and supports portfolio and deal flow through events.
Parikshit SharmaPartnerHe focuses on deep tech startups, artificial intelligence, and machine learning, and is a graduate of Bowdoin College.
Westley DangPartnerHe has a PhD in neuroscience and focuses on climate change and innovation.
Alexander Hall-DanielsPrincipalHe previously worked at Edelman London and a boutique consultancy startup in Philadelphia.
Ghaith AlghamdiPrincipalHe previously worked at Aramco Ventures and SABIC, and founded companies in climate and education technology.
Sabriya StukesPartner & Chief Science OfficerShe previously held operations and academic roles, including at Stellate Therapeutics and The City College of New York, and holds a PhD in…
Susan SchoferPartner & Chief Science OfficerShe previously held senior roles at Modern Meadow, Amyris, Symyx Technologies, and Mitchell Madison Group.
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Writes $500K to $1M checks. Its smallest check is larger than 71% of firms in the atlas.
Bars: how many firms in the atlas report each band. Highlighted: this firm.No recent activity since September 2026. Quiet does not mean closed.
Weekly count of activity updates. Activity is not a confirmed deal.Before you pitch
Ownership target10-12%
Notable investments
Vicarious SurgicalCompass PathwaysNotpla
In their words
The First Check in Deep Tech®SOSV is the world’s most active deep tech venture capital firm investing at pre-seed, with deeply resourced locations for founders in New York, Newark, and San Francisco.sosv.com
Send Mode VC your deck
Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.
Send your deckAlert me when SOSV is active
One email when this firm shows new activity. Nothing else.
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Questions
What stage does SOSV invest in?
SOSV reports entry at pre-seed.
How much does SOSV invest?
SOSV reports checks of $500K to $1M.
Does SOSV lead rounds?
Yes. SOSV says it can lead.
Who are the partners at SOSV?
Avra van der Zee (General Partner), Cyril Ebersweiler (General Partner & Managing Director, HAX), Deborah Zajac (General Partner), Duncan Turner (General Partner & Managing Director, HAX), Mohan S. Iyer (General Partner), Pae Wu (General Partner & CTO).
Is SOSV active right now?
No recent activity since September 2026.
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