Investment
Participated in Hephae Energy Technology's $17.8M Series A to commercialize superhot geothermal drilling technology.
Hephae Energy Technology
Every public signal F4 has attached to this firm, with sources and cross-entity links.
Hephae Energy Technology
Coreshell
Fervo Energy
Electra
What Decades of Investing Taught Me in 3 Words: Capital, Scaling, and Exponentiality
LuxWall
Kobold Metals
Kobold Metals
HingeBio
AstronetX
America's Top GreenTech Companies of 2026
Electra
kWh Analytics
Forge Energy