Develops advanced optoelectronic devices
Leosphere has raised €21M across 2 funding rounds from 1 investor, most recently a Growth/Late round in Apr 2014. Based in Orsay, France; founded 2004; active in Cleantech. Acquired by Vaisala in 2018. Data as of 7 Aug 2026.
| Date | Stage | Amount | Investors | |
|---|---|---|---|---|
| 2014-04-01 | Growth/Late | €20M | IDInvest Partners | View deal → |
| 2007-04-01 | Seed | €751k | — | View deal → |
