Biotech & Life SciencesClimate & EnergyFood & AgricultureHealthcareRobotics & AutomationHardware & Semiconductors
SOSV is the world's most active deep tech venture capital firm, investing at pre-seed in startups focused on human and planetary health. It operates startup development programs including HAX and IndieBio, and is headquartered in Princeton, New Jersey.
Their most common stage is seed (42% of deals). Average disclosed round size is $12.3M (across 254 rounds with reported amounts).
Portfolio
242
Fund Size
$306M
Top Stage
Seed
Last 12 Mo
15
Team
AV
Avra van der Zee
General Partner
DZ
Deborah Zajac
General Partner
DT
Duncan Turner
General Partner & Managing Director, SOSV HAX
PW
Pae Wu
General Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
315 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| AAlgiKnit | Series A | $13M | Sep 2026 |
 HexemBio | Seed | $10.4M | Apr 2026 |
 Sequential | Seed | $3.5M | Mar 2026 |
 VALANX Biotech | Unknown | — | Mar 2026 |
 Sable | Pre-Seed | — | Jan 2026 |
 Transition Metal Solutions | Seed | $6M | Jan 2026 |
 Transition Metal Solutions | Seed | $6M | Jan 2026 |
 Transition Metal Solutions | Seed | $6M | Jan 2026 |
 QV Bioelectronics | Pre-Seed | — | Jan 2026 |
 NOC Energy | Seed | $2.7M | Jan 2026 |
 Cellens | Seed | $6.5M | Dec 2025 |
 The EVERY Company | Series D | $55M | Nov 2025 |
 Clara Foods | Series D | — | Nov 2025 |
 every | Series D | $55M | Nov 2025 |
 Cephia | Seed | $4M | Oct 2025 |
 Helex | Seed | $3.5M | Oct 2025 |
| CCephia Ai | Seed | $4M | Oct 2025 |
 Scindo | Seed | — | Sep 2025 |
 FloVision Solutions | Series A | $8.7M | Jul 2025 |
 FloVision | Series A | $8.7M | Jul 2025 |
 Q5D Technologies | Series A | $10.9M | Jun 2025 |
 Algoma | Seed | $2.3M | May 2025 |
 Hoofprint Biome | Series A | $15M | Apr 2025 |
 PunaBio | Series A | — | Apr 2025 |
 Mitico | Seed | $4.3M | Feb 2025 |
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Top Co-Investors
HAX30 shared
Artesian12 shared
Khosla Ventures11 shared
Draper Associates11 shared
True Ventures8 shared
CPT Capital8 shared
AgFunder7 shared
Endeavor7 shared
Horizons Ventures7 shared
India Quotient7 shared
Entrepreneurs First6 shared
Main Sequence6 shared
Alumni Ventures6 shared
Mayfield Fund6 shared
Fifty Years6 shared
New Crop Capital6 shared
500 Global6 shared
Pathbreaker Ventures6 shared
McWin Capital Partners5 shared
Last updated: 27 September 2026