Founders Fund portfolio Biotech companies

Contrarian venture firm investing in deeptech, defence, and breakthrough software. Filtered to companies in Biotech.

Built from a search like: “Founders Fund-backed Biotech companies”

Ranked by current headcount across Founders Fund-backed Biotech companies. Refreshed daily.

1
Natera· Austin, Texas, United States
- Post-IPO equity
- 5.7k employees
- Founded 2004
2
Neuralink· Fremont, California, United States
- Series unknown
- 628 employees
- Founded 2016
3
AbCellera· Vancouver, British Columbia, Canada
- Grant
- 579 employees
- Founded 2012
4
Freenome· Brisbane, California, United States
- Corporate
- 390 employees
- Founded 2014
5
Ultima Genomics· Fremont, California, United States
- Series unknown
- 303 employees
- Founded 2016
6
Seed Health· Los Angeles, California, United States
- Series A
- 249 employees
- Founded 2016
7
Roivant· New York, New York, United States
- Post-IPO equity
- 225 employees
- Founded 2014
8
Emerald Cloud Lab· Austin, Texas, United States
- Series B
- 184 employees
- Founded 2010
9
Synthego· Menlo Park, California, United States
- Series E
- 167 employees
- Founded 2012
10
Alloy Therapeutics, Inc.· Lexington, Massachusetts, United States
- Series D
- 135 employees
- Founded 2017
11
MyOme· Palo Alto, California, United States
- Series B
- 77 employees
- Founded 2017
12
Emulate, Inc.· Boston, Massachusetts, United States
- Series F
- 76 employees
- Founded 2014
13
Compass Therapeutics Inc.· Boston, Massachusetts, United States
- Post-IPO equity
- 52 employees
- Founded 2014
14
NewLimit· South San Francisco, California, United States
- Convertible note
- 50 employees
- Founded 2022
15
Hoxton Farms· London, England, United Kingdom
- Series unknown
- 49 employees
- Founded 2020
16
Bolt· Berkeley, California, United States
- Post-IPO equity
- 45 employees
- Founded 2009
17
Neurotrack· Redwood City, California, United States
- Series unknown
- 42 employees
- Founded 2012
18
Nucleus Genomics· New York, New York, United States
- Seed
- 41 employees
- Founded 2021
19
Q Bio· San Carlos, California, United States
- Series unknown
- 40 employees
- Founded 2015
20
Ataraxis AI· New York, New York, United States
- Series A
- 40 employees
- Founded 2023
21
Notable· Foster City, California, United States
- Series B
- 29 employees
- Founded 2014
22
Strateos· Menlo Park, California, United States
- Series B
- 27 employees
- Founded 2019
23
Contraline· Charlottesville, Virginia, United States
- Series A
- 23 employees
- Founded 2015
24
Immusoft· Seattle, Washington, United States
- Grant
- 22 employees
- Founded 2009
25
A.D.A.M. Innovations (formerly Genesis Healthcare – GeneLife)· Shibuya-ku, Tokyo, Japan
- Series unknown
- 22 employees
- Founded 2004

Founders Fund’s Biotech portfolio

The list above ranks Founders Fund-backed Biotech companies by current headcount, drawn from public LinkedIn and Crunchbase records. 32 matching companies in our index give you a quick read on where Founders Fund has gone deepest in the Biotech space.

Founders Fund’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 “Founders Fund Biotechcompanies hiring senior engineers” or “founders of Founders Fund-backed Biotechcompanies” and Refolk returns a fresh ranked shortlist.

How this list is built

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

Last refreshed: Thu, 07 May 2026 06:59:14 GMT

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Founders Fund’s Biotech portfolio

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