Atlas Venture is an early-stage venture capital firm that exclusively focuses on creating and investing in innovative biotechnology and pharmaceutical startups. Their strategy involves a "venture creation" approach, working closely with entrepreneurs and scientists to translate groundbreaking science into new medicines.
54% of their portfolio is in Biotech & Life Sciences. Average disclosed round size is $69.4M (across 49 rounds with reported amounts).
Portfolio
52
Fund Size
$2.7B
Top Stage
Series A
Last 12 Mo
4
Team
BB
Bruce Booth
Partner
KB
Kevin Bitterman
Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
52 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Kinaset Therapeutics | Series B | $103M | Jan 2026 |
 Triana Biomedicines | Series B | $120M | Dec 2025 |
| LLifordi Immunotherapeutics | Unknown | — | Nov 2025 |
| AAAVantgarde Bio | Series B | $141M | Nov 2025 |
 Triveni Bio Inc. | Series B | $115M | Oct 2024 |
 Kailera Therapeutics | Series A | $400M | Oct 2024 |
 Pheon Therapeutics | Series B | $120M | May 2024 |
 Diagonal Therapeutics | Series A | $128M | Apr 2024 |
 Comanche Biopharma Corp. | Series B | $75M | Jan 2024 |
 Remix Therapeutics | Series C | $60M | Jan 2024 |
| Triveni Bio Inc. | Series A | $92M | Oct 2023 |
| Kailera Therapeutics | Growth | $400M | Oct 2023 |
 Jenfi | Series A | $6.6M | May 2023 |
 Chroma Medicine | Series B | $135M | Mar 2023 |
| PPHINXT Robotics | Pre-Seed | $600K | Jan 2023 |
| Pheon Therapeutics | Series A | $68M | Sep 2022 |
 Sionna Therapeutics | Series B | $111M | Apr 2022 |
 Arkuda Therapeutics | Series B | $64M | Feb 2022 |
 GoComet | Series A | $7M | Feb 2022 |
 Curie Therapeutics Inc. | Series A | $75M | Dec 2021 |
 HotSpot Therapeutics, Inc. | Series C | $100M | Nov 2021 |
 Obsidian Therapeutics | Series B | $115M | Sep 2021 |
 Disc Medicine | Series B | $90M | Sep 2021 |
 Vedere Bio II, Inc. | Series A | $77M | May 2021 |
 Affinia Therapeutics | Series B | $110M | May 2021 |
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Top Co-Investors
RA Capital Management9 shared
Cormorant Asset Management5 shared
Alexandria Venture Investments5 shared
ARCH Venture Partners4 shared
Willett Advisors4 shared
Casdin Capital4 shared
OrbiMed4 shared
Surveyor Capital4 shared
Sofinnova Partners4 shared
500 Startups4 shared
Janus Henderson Investors3 shared
Forbion3 shared
Viking Global Investors3 shared
Invus3 shared
GV (Google Ventures)3 shared
Pivotal bioVenture Partners3 shared
Pfizer Ventures3 shared
Lightspeed Venture Partners3 shared
Rock Springs Capital2 shared
Foresite Capital2 shared
Last updated: 13 March 2026