Noctrix Health vs Abridge
Side-by-side comparison of AI visibility scores, market position, and capabilities
Maker of Nidra, the first FDA-authorized drug-free device for drug-refractory Restless Legs Syndrome. ~$24M ARR; acquired by ResMed for $340M (expected close June 2026).
About
Noctrix Health is a medical device company commercializing Nidra Therapy — the first and only FDA-authorized, drug-free treatment for drug-refractory Restless Legs Syndrome (RLS). The Nidra device uses Tonic Motor Activation (TOMAC) technology to deliver gentle electrical stimulation to the legs, reducing RLS symptoms without pharmaceutical side effects. The FDA granted De Novo authorization in 2023. In August 2025, Noctrix raised $33.5M in combined debt and equity to accelerate U.S. commercialization, reaching an annual revenue run rate of approximately $24M. ResMed signed an agreement in 2026 to acquire Noctrix Health for $340M, with the transaction expected to close around June 1, 2026 — Noctrix''s revenue will be reported within ResMed''s Americas Devices category post-close.
Pittsburgh ambient clinical AI (founded by cardiologist) at $5.3B valuation Jun 2025; $800M total ($300M a16z/Khosla Series E) deployed at UPMC 12K clinicians, Mayo Clinic, Johns Hopkins competing with Nuance DAX for physician documentation.
About
Abridge is a Pittsburgh, Pennsylvania-based healthcare AI clinical documentation platform — backed with approximately $800 million in total funding including a $300 million Series E in June 2025 led by Andreessen Horowitz and Khosla Ventures at a $5.3 billion valuation, following a $250 million Series D just four months prior at a $2.8 billion valuation — providing physicians, nurses, and care teams at 150+ health systems with AI that automatically converts patient-clinician conversations into structured clinical notes, saving physicians an average of 3 hours daily and generating high-quality documentation from UPMC (scaling to 12,000 clinicians enterprise-wide), Mayo Clinic, Johns Hopkins, and Emory Healthcare. Abridge's AI is trained on a proprietary dataset of over 1.5 million medical encounters, delivering specialty-specific documentation through deep Epic EHR integration. Founded in 2018 by cardiologist Dr. Shiv Rao.
Key Details
Also Compare
Track AI Visibility in Real Time
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.