EcoR1 Capital

Venture Capital

Biotech-focused venture fund. Invests in drug discovery and therapeutic innovation.

San Francisco, United States · 59+ investments · 78 portfolio companies

Early Stage
Late Stage
Growth
Seed
Biotech
Drug Discovery
Life Sciences
Therapeutics
Headquarters
San Francisco, United States
Founded
2012
AUM
$2.8B
Portfolio Companies
78
Total Investments
59
Last Investment
Jan 2026
Geographic Focus
G, a, b, l, o, United States

Investment Thesis

Builds long-term partnerships with bold entrepreneurs pushing therapeutic innovation forward to create new medicines for patients in biotech.

EcoR1 Capital is a Venture Capital firm based in San Francisco, United States. It has made 59 investments in Biotech and Drug Discovery, including Neogene Therapeutics, Morphic and Kindred Biosciences.

Portfolio78

Co-investors24

Sign up to view co-investors

24 co-investors across 179 shared portfolio companies — who they back alongside, and how often they lead.

Venture Capital ×17 · Hedge Fund ×5 · Corporate VC ×1 · 99 shared rounds

Investment History

Sign up to view investment history

Create a free account with 25 free credits every month, no card needed, to unlock deal history, amounts, and round details.

Your firm? Embed this profile

Add the live badge to your site — it stays current as your portfolio data updates.

EcoR1 Capital on Indexed.vc
<a href="https://indexed.vc/investors/ecor1-capital"><img src="https://indexed.vc/api/badge/investor/ecor1-capital" alt="EcoR1 Capital on Indexed.vc" width="260" height="76" /></a>