Founded in 2022 by Roswitha Verwer, YON E Health is a Dutch FemTech startup building what it describes as the first continuous, at-home vaginal health sensor. The device simultaneously tracks pH and basal body temperature, two biomarkers that indicate fertility windows, microbiome balance, and infection risk. By turning these readings into actionable data, the company aims to shift care from reactive paper-strip testing to proactive, real-time monitoring for women and clinicians. The multidisciplinary team operates across Amsterdam, Budapest, London, Texas, Boston, and Madrid, reflecting its global ambitions. Current priorities include completing product development and initiating medical trials to validate the sensor’s clinical utility. No revenue or user numbers have been disclosed, as the product is still pre-commercial. The company positions itself within a growing European FemTech market that is increasingly focused on combining clinical-grade data with consumer-friendly hardware.

Total raised

$0M

Funding rounds

1

Latest round

Seed

Latest activity

Nov 2025