Abridge is a healthcare AI company providing ambient AI clinical documentation, often described as an "AI scribe," that listens to doctor-patient visits and automatically generates clinical notes. It was founded in 2018 by Dr. Shiv Rao, a practicing cardiologist, alongside Zachary Lipton, then a Carnegie Mellon machine-learning professor - a founding pair that combined direct clinical experience with deep technical research.
Abridge closed a $300 million Series E led by Andreessen Horowitz and Khosla Ventures at a $5.3 billion valuation in 2026, part of roughly $830 million raised to date. The company's ambient scribe technology is now deployed across more than 250 major health systems, reflecting rapid adoption of AI documentation tools as a way to reduce physician administrative burden and burnout.