Daniel Nadler

Founder and CEO, OpenEvidence

Industry: Clinical AI & Documentation
Based in: United States
Company funding: $210M raised
Region: North America

Economist and machine learning researcher who previously founded a financial AI company.

Built a clinical evidence assistant used by hundreds of thousands of clinicians.

Daniel Nadler is a Canadian born entrepreneur who earned a PhD from Harvard University and founded the artificial intelligence company Kensho, later acquired by S&P Global. In 2021 he founded OpenEvidence, an AI platform that helps physicians find and interpret medical research.

OpenEvidence in the startup database Company website LinkedIn

The journey

How Daniel Nadler got here, step by step.

2000s
Doctoral studies at Harvard
Nadler earned a PhD from Harvard University, building a background in economics and computation.
2013
Founded Kensho Technologies
He founded Kensho, an analytics company that applied artificial intelligence to financial markets.
2018
Kensho acquired by S&P Global
S&P Global acquired Kensho, one of the largest artificial intelligence acquisitions in finance at the time.
2021
Founded OpenEvidence
Nadler founded OpenEvidence, launching through the Mayo Clinic Platform Accelerate programme to help physicians.
2021 to 2024
Signed medical journal partnerships
OpenEvidence agreed content partnerships with major medical journals and grew rapidly among practising doctors.
2025
Raised a major funding round
OpenEvidence raised significant funding that valued the company in the billions of dollars.