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SOSV

sosv.com · San Francisco, New York City, and Newark (headquarters); Cork (Ireland/EU), Pune (India), Shenzhen (China), and Tokyo (Japan) (international offices) · founded 1995 · team 9 General Partners, 80 staff members (as stated on About page; LinkedIn notes 85 staff globally with 'GPs & Partners') · Pre-seed; up to 61 pre-seed investments per year; Fund V ($306M) deploying to 60+ pre-seed startups; check size up to $550,000 per investment; follow-on funding to portfolio companies · trust 0/4

World's most active deep tech, pre-seed venture capital firm; helps startups go further, faster

This dossier was built by Clark from a public scan on 2026-07-05 and is unclaimed. Is this your startup? Claim it.

Verified facts

Company NameSOSV
source: https://sosv.com
Investment Thesis / FocusWorld's most active deep tech, pre-seed venture capital firm; helps startups go further, faster
source: https://sosv.com/invest
Headquarters / LocationsSan Francisco, New York City, and Newark (headquarters); Cork (Ireland/EU), Pune (India), Shenzhen (China), and Tokyo (Japan) (international offices)
source: https://sosv.com/about
Founded1995
source: https://sosv.com/about (quote: 'Managing General Partner Sean O'Sullivan founded SOSV in 1995')
Founding/Managing PartnersSean O'Sullivan (Managing General Partner)
source: https://sosv.com/about (quote: 'Managing General Partner Sean O'Sullivan founded SOSV in 1995')
Team Size9 General Partners, 80 staff members (as stated on About page; LinkedIn notes 85 staff globally with 'GPs & Partners')
source: https://sosv.com/about (quote: 'The firm has grown to nine general partners and 80 staff members')
Investment Stage / Check SizePre-seed; up to 61 pre-seed investments per year; Fund V ($306M) deploying to 60+ pre-seed startups; check size up to $550,000 per investment; follow-on funding to portfolio companies
source: https://sosv.com/invest; LinkedIn post (3mo old)
Legal Entity TypeSOSV IV LLC - Delaware limited liability company
source: SEC filing snippet from web search showing 'SOSV IV LLC ("SOSV"), a Delaware limited liability company'
Contact Emailpress@sosv.com
source: https://sosv.com/about (quote: 'For press inquiries, please contact us at press@sosv.com')

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