Andreessen Horowitz portfolio Biotech companies
Multi-stage venture firm investing across consumer, enterprise, fintech, and crypto. Filtered to companies in Biotech.
Built from a search like: “Andreessen Horowitz-backed Biotech companies”
Ranked by current headcount across Andreessen Horowitz-backed Biotech companies. Refreshed daily.
- 1Flatiron Health· New York, New York, United States
- Series D
- 1.5k employees
- Founded 2012
- 2Freenome· Brisbane, California, United States
- Corporate
- 390 employees
- Founded 2014
- 3Ultima Genomics· Fremont, California, United States
- Series unknown
- 303 employees
- Founded 2016
- 4insitro· South San Francisco, California, United States
- Series C
- 247 employees
- Founded 2018
- 5Formation Bio· New York, New York, United States
- Series D
- 190 employees
- Founded 2013
- 6Apeel Sciences· Goleta, California, United States
- Series unknown
- 176 employees
- Founded 2012
- 7Genesis Molecular AI· Burlingame, California, United States
- Series B
- 156 employees
- Founded 2019
- 8Nautilus Biotechnology· San Carlos, California, United States
- Post-IPO equity
- 142 employees
- Founded 2016
- 9Asimov· Boston, Massachusetts, United States
- Series B
- 116 employees
- Founded 2017
- 10Erasca, Inc.· San Diego, California, United States
- Post-IPO equity
- 112 employees
- Founded 2018
- 11Scribe Therapeutics· Alameda, California, United States
- Convertible note
- 100 employees
- Founded 2017
- 12BigHat Biosciences· San Mateo, California, United States
- Series B
- 98 employees
- Founded 2019
- 13BioAge Labs· Emeryville, California, United States
- Post-IPO equity
- 97 employees
- Founded 2015
- 14Dyno Therapeutics· Watertown, Massachusetts, United States
- Series A
- 91 employees
- Founded 2018
- 15ELEGEN· San Carlos, California, United States
- Series B
- 81 employees
- Founded 2017
- 16Ventus Therapeutics· Waltham, Massachusetts, United States
- Grant
- 74 employees
- Founded 2019
- 17Octant· Emeryville, California, United States
- Series B
- 70 employees
- Founded 2017
- 18Cartography Biosciences· South San Francisco, California, United States
- Series B
- 60 employees
- Founded 2020
- 19CAMP4 Therapeutics· Cambridge, Massachusetts, United States
- Post-IPO equity
- 58 employees
- Founded 2016
- 20Inceptive· Palo Alto, California, United States
- Series A
- 54 employees
- Founded 2021
- 21Q Bio· San Carlos, California, United States
- Series unknown
- 40 employees
- Founded 2015
- 22Rezo Therapeutics· San Francisco, California, United States
- Series A
- 40 employees
- Founded 2021
- 23Deepcell· Menlo Park, California, United States
- Series unknown
- 39 employees
- Founded 2017
- 24Earli· Redwood City, California, United States
- Series unknown
- 37 employees
- Founded 2018
- 25Santa Ana Bio, Inc.· Alameda, California, United States
- Series B
- 36 employees
- Founded 2022
Andreessen Horowitz’s Biotech portfolio
The list above ranks Andreessen Horowitz-backed Biotech companies by current headcount, drawn from public LinkedIn and Crunchbase records. 38 matching companies in our index give you a quick read on where Andreessen Horowitz has gone deepest in the Biotech space.
Andreessen Horowitz’s Biotech bets tend to share a thesis. The engineers, ML researchers, and founders inside these companies are often building the same primitives — and they show up in Biotech talent pools across the next decade.
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Last refreshed: Thu, 07 May 2026 06:00:18 GMT
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