Startup Dossier
Onsen
Lyon-based cleantech company designing equipment and software to optimize the environmental and economic performance of public and private swimming pools. Onsen enables real-time monitoring and intelligent control of water and energy consumption, significantly reducing operating costs and environmental impact.
active
Typestartup
SectorCleanTech
LocationLyon
About
Lyon-based cleantech company designing equipment and software to optimize the environmental and economic performance of public and private swimming pools. Onsen enables real-time monitoring and intelligent control of water and energy consumption, significantly reducing operating costs and environmental impact.
Structural DNA
Legal Name
Onsen
SIREN
518714332
Funding Lineage
Seed
Demeter (Lead)
€1.3M
Dec 2025
Programs
i-Nov
2023Transports, mobilités, villes et bâtiments durables