Hephae Energy Technology reported that geothermal drilling startups raised $2.18 billion in venture investment from January through August 2026, bringing total venture investment across these seven startups to $393 million since 2021.

Hephae Energy Technology is a global leader in ultra high temperature technology. From drilling and completions to subsurface evaluation, ultra high temperature electronics are critical across the full life cycle of geothermal, enabling access to deeper and hotter rocks. The company’s current focus is on building MWD and RSS tools that contain ultra high temperature electronics and sensor modules. Hephae looking to break the temperature barrier to power our future with 210°C-capable tools and a roadmap to 300°C. The Hephae team brings diverse talent and bold ideas with more than 100 years of collective experience developing drilling technologies for some of the harshest drilling conditions across the globe. Join the movement as Hephae redefines what's possible and advances energy equality for everyone, everywhere.