PsiThera
PsiThera is an artificial intelligence company in Watertown, United States, founded in 2022. It has raised $47.5M across 1 round, most recently a $47.5M Series A in December 2025.
Designing Better Medicines, Atom by Atom
- Headquarters
- Watertown, Massachusetts
- Employees
- 11–50
- Founded
- 2022
- Business Model
- B2B
- Website
- psithera.com
- Total Funding
- $47.5M
- Last Round
- $47.5M Series ADec 2025
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 1 funding round for this company. The full record is or through the API.
About
PsiThera is a biotechnology company pioneering a physics-driven approach to drug design through its proprietary QUAISAR computational platform. Spun out of Roivant Sciences in 2022, the company combines quantum physics-based simulations, machine learning, and in-house high-performance supercomputing with in-house experimental biology and chemistry to design novel small molecule therapeutics targeting previously intractable proteins. PsiThera's integrated approach spans the full drug discovery lifecycle, from computational design to laboratory validation, with a focus on immune system diseases with high unmet medical need.
Summary
It lists 11–50 employees. It has raised $47.5M in total across 1 round, most recently a $47.5M Series A round in Dec 2025.
Tech & App Stack
3 technologies & apps tracked
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Funding History
Dec 2025
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