Onsen

Raised $1.5M, announced 9 December 2025.

Total raised
$1.5M

Country FranceSector Climate & Energy

Round

$1.5MRound, 9 December 2025

Round led by Demeter to scale deployment of its Hippocampe control software across aquatic centers.

Amount
$1.5M
Announced
9 December 2025
Lead
Demeter (FAIM Lyon Saint-Etienne fund)
Other investors
Bpifrance
Use of funds
Round led by Demeter to scale deployment of its Hippocampe control software across aquatic centers.
Checked
Announced by the company
Sources
Onsen raises 1.3M euros to green public swimming pools demeter-im.com
Onsen raises 1.3M euros to green public swimming pools lyon-entreprises.com
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Company

Software and smart equipment control to cut energy use of public swimming pools

Based in
Lyon, France
Sector
Climate & Energy
Website
onsen.com ↗

Links

Website
onsen.com ↗

Questions

How much has Onsen raised?

Onsen raised $1.5M, announced on 9 December 2025.

Who invested in Onsen?

Demeter (FAIM Lyon Saint-Etienne fund) led. Investors include Demeter (FAIM Lyon Saint-Etienne fund) and Bpifrance.