
Sontag Innovation Fund
Ponte Vedra Beach, Florida, United StatesFounded 2021
The Sontag Innovation Fund is a venture philanthropy fund that invests in early-stage, high-risk, and innovative technologies aimed at accelerating solutions to diagnose, treat, prevent, and cure brain cancer. Its strategy involves focusing resources on its charitable mission while also seeking a return of principal to recycle capital, typically through loans and equity investments in both for-profit and non-profit entities.
50% of their portfolio is in Biotech & Life Sciences. Average disclosed round size is $6.4M (across 3 rounds with reported amounts).
Portfolio
4
Fund Size
—
Top Stage
Seed
Last 12 Mo
2
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
4 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| Series A | $8.1M | Sep 2025 | |
| Unknown | $8M | Sep 2025 | |
| Seed | $3M | Feb 2025 | |
| Pre-Seed | — | Sep 2024 |
Top Co-Investors
DeepWork Capital1 shared
Florida Opportunity Fund1 shared
Mayo Clinic1 shared
IQ Capital1 shared
Cancer Research Horizons1 shared
New York Angels1 shared
Keiretsu Forum1 shared
BrightEdge1 shared
Last updated: 9 April 2026