Avalon Ventures
Venture capital · La Jolla, California, United States
Portfolio collected from the firm’s website, last checked Jun 28, 2026.Raises and exits come from each company’s own SEC and company records.
13Deep-tech portfolio6 active
6Portfolio exitsAcquired or listed
0Raises, 12 monthsLatest: Affinia Therapeutics
16Co-investorsShare a portfolio company
Portfolio · 13 companies
| Company | Sector | Status | Latest raise | Raised |
|---|---|---|---|---|
| Affinia Therapeutics | Biotech | Active | Oct 14, 2025 | $170.1M |
| AeroRx Therapeutics | Biotech | Active | Oct 10, 2025 | $10.4M |
| Enlaza Therapeutics | Biotech | Active | Sep 11, 2025 | $103.0M |
| Arialys Therapeutics | Biotech | Active | Jul 1, 2025 | $29.1M |
| Valora Therapeutics | Biotech | Active | Jul 24, 2024 | $13.0M |
| HotSpot Therapeutics | Biotech | Active | — | — |
| Cidara Therapeutics | Biotech | Acquired | May 6, 2024 | $349.1M |
| Jnana Therapeutics | Biotech | Acquired | Jan 26, 2024 | $110.0M |
| Nerio Therapeutics | Biotech | Acquired | Oct 8, 2021 | $6.5M |
| Janux Therapeutics | Biotech | Public | Apr 30, 2021 | $192.4M |
| Synthorx | Biotech | Acquired | Apr 27, 2018 | $34.7M |
| Sienna Biopharmaceuticals | Biotech | Closed | May 15, 2017 | $58.9M |
| Calporta Therapeutics | Biotech | Acquired | — | — |
Peer ranks
Portfolio size#36
Portfolio exits#31
Raises, 12 months#88
Co-investors#128
Co-investors
- RA CapitalVenture capital4 shared
- MPM BioImpactVenture capital3 shared
- Pfizer Venture InvestmentsVenture capital3 shared
- Atlas VentureVenture capital2 shared
- Bain Capital Life SciencesVenture capital2 shared
- MPM CapitalVenture capital2 shared
- AbbottVenture capital1 shared
- AbingworthVenture capital1 shared
- Alexandria Venture InvestmentsVenture capital1 shared
- Amgen VenturesVenture capital1 shared
Sectors
- Biotech13
Portfolios are collected from investors’ own websites and matched to tracked deep-tech companies by name; duplicate listings of the same firm are merged. Exits and raises come from each company’s own record: Form D through the latest filing.