Idoven

Idoven is a Madrid-based digital health startup that uses AI to transform ECG analysis and cardiovascular diagnostics. Its Willem™ platform analyses 50,000 heartbeats in 60 seconds, identifying 86 electrical heart conditions that represent 90% of common cardiac problems — reaching 96.4% accuracy for atrial fibrillation detection. Founded in 2019 by Manuel Marina Breysse, José María Lillo Castellano, and Íñigo Juantegui, the company raised €18.5M Series A co-led by Insight Partners and Northzone with Wayra participation. Idoven operates B2B through hospitals, pharmaceutical trials, and healthcare systems, and employs 71 people as of early 2026.