Startups

EnsoData
EnsoData is a Madison, Wisconsin healthcare AI company founded in 2015 that analyzes physiological waveform data for sleep medicine. EnsoSleep provides clinician-reviewed scoring of polysomnography and home sleep tests, including EEG-based sleep staging. EnsoHST supports multi-night home sleep testing from pulse-oximetry signals, while EnsoHub provides a unified workflow for reviewing studies and reports. The company's current product ecosystem also includes Therapy Track for longer-term monitoring. EEG-based sleep analysis and peripheral photoplethysmography are different signal modalities. EnsoSleep's FDA clearance K210034 covers specified adult sleep studies and in-lab polysomnography for patients aged 13 and older, with automatically scored results subject to clinician verification. Aurora, subsequently marketed as EnsoSleep PPG, received FDA clearance K231355 for adult pulse-oximetry sleep analysis. Current leadership includes President and CEO Justin Mortara, cofounder and Executive Chairman Chris Fernandez, Chief AI Officer Sam Rusk and CTO Nick Glattard. EnsoData announced a $9 million Series A in 2020, a separate $20 million Series A extension in 2022 and a $20 million Series B in 2025. CIBC disclosed a growth-capital credit facility in May 2026 without specifying its size.
Founded 2015



















