# Early Bird Terms Almost SOLD OUT! | Airthium (YC S17)

- Canonical URL: https://wefunder.com/feed/354304
- Entity ID: wefunder:feed_item:354304
- Published at: 2026-07-17 14:58:58 UTC
- Updated at: 2026-07-17 20:07:13 UTC

## Author
Franck Lahaye

## Subject
Airthium (YC S17)

## Content
Early bird terms are nearly GONE. 😱This will be the last time we offer these discounted terms, so we suggest you get in or increase your stake soon!Here's why NOW is the time to back or double down on Airthium:✅ Working prototype - we reached 145°C, now building a 10x scaled up system at 180°C.✅ Two patents. First approved. Second filed. The thermodynamic engine at the core of this technology took years of multi-physics modeling that competitors can't shortcut.✅ €3.8M non-dilutive grant from ADEME, France's equivalent of the Department of Energy, awarded after rigorous technical due diligence. Capital raised in this round will help us fully unlock it with matching capital. ✅ First industrial LOI secured. A 100kW paid deployment. Our sales pipeline is growing. ✅ Backed by Y Combinator, Eren Groupe, Daphni, and Polytechnique Ventures. Institutional investors who know deep-tech hardware are already in.Early bird terms are over 80% sold out. Get the best terms before the window closes.👉 Invest now