Founded in 2011 by Laura Deming, The Longevity Fund is the first venture capital firm dedicated to longevity biotech, backing founders working to extend healthy human lifespan through investments in therapeutics and age-related disease companies. The firm is based in San Francisco and now also operates through age1.
44% of their portfolio is in Biotech & Life Sciences. Deal activity increased 100% year-over-year (2 deals in the last 12 months). Their most common stage is seed (41% of deals). Average disclosed round size is $35.4M (across 27 rounds with reported amounts).
Portfolio
24
Fund Size
$35M
Top Stage
Seed
Last 12 Mo
2
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
27 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Urologic | Seed | $11M | May 2026 |
 CustoMed | Seed | $6M | Oct 2025 |
 Faireez | Seed | $7.5M | Mar 2025 |
 In-House Health | Seed | $4M | May 2024 |
 Gordian Biotechnology | Series C | $60M | Jan 2024 |
| CCleara Biotech | Seed | $2.5M | Sep 2022 |
| SSenda Biosciences | Series C | $123M | Aug 2022 |
 Loyal | Series A | $27M | Sep 2021 |
 Epirium Bio | Series A | $85M | Dec 2019 |
 Fauna Bio | Seed | $4.1M | Apr 2019 |
 Epirium Bio | Series A | $85M | Jan 2019 |
| Epirium Bio | Series A | $85M | Jan 2019 |
| SSystem1 Biosciences | Series A | $25M | Sep 2018 |
 Decibel Therapeutics | Series C | $55M | Jun 2018 |
 Unity Biotechnology | Series C | $55M | Mar 2018 |
| SSystem1 Biosciences | Series A | $25M | Jan 2018 |
 Navitor | Series A | $23.5M | Jan 2014 |
 Navitor Pharmaceuticals | Series A | $23.5M | Jan 2014 |
| Navitor Pharmaceuticals | Seed | $10.2M | Jan 2013 |
 Precision BioSciences | Series B | $110M | — |
 Lembas | Pre-Seed | $3.6M | — |
 Loyal | Unknown | $100M | — |
| EEdocate | Seed | $3M | — |
 Cleara | Seed | $2.5M | — |
| OOutsense | Series A | $2.2M | — |
Page 1 of 2
Top Co-Investors
Alexandria Venture Investments4 shared
ARCH Venture Partners4 shared
Founders Fund3 shared
Cormorant Asset Management3 shared
Longitude Capital3 shared
Adams Street Partners3 shared
Vertex Ventures HC3 shared
Bluebird Ventures3 shared
SR One3 shared
Polaris Partners3 shared
BoxGroup2 shared
Khosla Ventures2 shared
Webb Investment Network2 shared
Riot Ventures2 shared
Dolby Family Ventures2 shared
CRV2 shared
Liquid 2 Ventures2 shared
Pfizer Ventures2 shared
Baillie Gifford2 shared
Atlas Venture2 shared
Last updated: 20 October 2026