Led · Series A · Jul 2026

Hephae Energy Technology develops ultrahigh-temperature robotics, including drilling systems designed to enable precise well positioning for geothermal projects by overcoming temperature and reliability limitations of conventional drilling tools. Its technology aims to access deeper, hotter rock to support expanded geothermal energy development and to increase drilling speed and reliability. The company is led by CEO Steve Krase and is based in Houston, TX. Financially, Hephae has now raised a total of $24.7M following its $17.8M Series A. The newly raised funds are intended to accelerate commercial deployment of its advanced drilling systems and move the company toward broader market commercialization.

Participated · Seed · Jun 2026

Critical Energy designs and manufactures modular turbines and turbomachinery aimed at speeding deployment of geothermal power plants. The company leverages founder Spencer Jackson's SpaceX turbomachinery experience to produce factory-built modules that can be assembled faster than large, site-assembled turbines. Its immediate plan is to build a 2.5 megawatt turbine module as its first project, with a 5 megawatt module in development for enhanced geothermal operators. The first plant using its turbines is slated for completion by 2027. Financially, Critical Energy has raised $19 million in seed equity and $3 million in venture debt, totaling $22 million in early capital. The company projects rapid scaling, targeting gigawatt-scale output by the early 2030s and a long-term goal of producing 300 gigawatts of capacity per year by 2045.

Participated · Equity · Mar 2026

GA Drilling develops drilling technologies and is advancing NexTitan, a system the company says is designed to enable faster, longer-reach and lower-emission well construction. The recent funding award from Emissions Reduction Alberta’s Drilling Technology Challenge will be used to run a live pilot of NexTitan on conventional and coiled tubing rigs. The pilot aims to validate NexTitan’s performance and strengthen the company’s positioning in geothermal and oil & gas drilling markets. The announcement frames the government-backed award as external validation that could help secure future partnerships or project awards if performance targets are met. The articles did not disclose the company’s founding year, location, past funding rounds, or financial metrics.