R1 Therapeutics
Transforming The Future Of Kidney Care
Redwood City, United States · Founded 2025 · $77.5M raised
- Headquarters
- Redwood City, California
- Employees
- 1–10
- Founded
- 2025
- Business Model
- B2B
- Website
- r1therapeutics.com
- Total Funding
- $77.5M
- Last Round
- $77.5M Series AMar 2026
- Rounds
- 1
About
R1 Therapeutics is a clinical-stage biotechnology company developing innovative first-in-class therapies for patients with kidney disease. Its lead asset, AP306, is a pan phosphate transporter inhibitor targeting hyperphosphatemia in chronic kidney disease patients on dialysis, with a novel mechanism of action blocking three key phosphate transporters in the gut. The company launched in March 2026 with an oversubscribed $77.5 million Series A co-led by Abingworth, F-Prime, and DaVita Venture Group, and has operations in California, North Carolina, and Boston.
Summary
R1 Therapeutics is a Biotech company based in Redwood City, United States, founded in 2025. It has raised $77.5M in total across 1 round, most recently a $77.5M Series A round in Mar 2026. Investors include Abingworth Bioventures, DaVita Venture Group and F-Prime Capital.
Tech & App Stack
2 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding History
Mar 2026
Investors
Similar Companies
China's leading blood products manufacturer
Global contract research organization providing comprehensive drug development and laboratory ser...
Global fertility clinics platform
Specialty pharmaceutical company
Biopharmaceutical services company
Biotech advancing cellular rejuvenation programming to restore cell health and reverse disease.
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/r1-therapeutics"><img src="https://indexed.vc/api/badge/company/r1-therapeutics" alt="R1 Therapeutics on Indexed.vc" width="260" height="76" /></a>