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Andreessen Horowitz portfolio Biotech companies

Multi-stage venture firm investing across consumer, enterprise, fintech, and crypto. Filtered to companies in Biotech.

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Built from a search like: “Andreessen Horowitz-backed Biotech companies”

Ranked by current headcount across Andreessen Horowitz-backed Biotech companies. Refreshed daily.

  1. 1
    Flatiron Health· New York, New York, United States
    • Series D
    • 1.4k employees
    • Founded 2012
  2. 2
    Freenome· Brisbane, California, United States
    • Corporate
    • 399 employees
    • Founded 2014
  3. 3
    Ultima Genomics· Fremont, California, United States
    • Series unknown
    • 304 employees
    • Founded 2016
  4. 4
    insitro· South San Francisco, California, United States
    • Series C
    • 255 employees
    • Founded 2018
  5. 5
    Formation Bio· New York, New York, United States
    • Series D
    • 200 employees
    • Founded 2013
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Andreessen Horowitz’s Biotech portfolio

The list above ranks Andreessen Horowitz-backed Biotech companies by current headcount, drawn from public LinkedIn and Crunchbase records. 40 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.

Refolk converts this list into a live search. Ask for “Andreessen Horowitz Biotechcompanies hiring senior engineers” or “founders of Andreessen Horowitz-backed Biotechcompanies” and Refolk returns a fresh ranked shortlist.

How this list is built

Refolk pulled Biotech companies whose disclosed Crunchbase investor list includes Andreessen Horowitz, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Sun, 21 Jun 2026 08:22:57 GMT

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