Sage Geosystems Raises Over $97M in Series B Funding for Geothermal Innovations

Houston has seen every energy cycle imaginable. Booms that felt eternal, busts that felt biblical, and enough buzzwords to power a small city. Sage Geosystems did not show up to add noise. Founded in the summer of 2020 by R. Lance Cook and Dr. Lev Ring, two engineers fluent in pressure, rock, and reality, the company planted its flag at 515 West Greens Road with a simple premise. The subsurface already knows how to store and move energy. Humans just needed to listen better.

Sage Geosystems closed over $97M in Series B funding, and the market leaned in. Ormat Technologies put $25 million on the table as co-lead, not as a tourist but as a six-decade geothermal operator betting real balance sheet on pressure geothermal becoming commercial, repeatable, and fast. Carbon Direct Capital co-led the round, with CEO Jonathan Goldberg calling out the fit for hyperscalers who need clean, firm power without fairy tales. Barclays served as exclusive placement agent, which tells you this was built to clear, not to posture.

Sage Geosystems does not sell vibes. Its pressure geothermal platform pulls both heat and pressure from hot, dry rock, turning enthalpy into something dispatchable. EarthStore is not a metaphor. It is an underground system that breathes, storing energy for six to ten hours with seventy to seventy-five percent round trip efficiency and less than two percent water loss. In 2023, the Starr County pilot delivered two hundred kilowatts for eighteen hours and one megawatt on demand. That data mattered. So did the land use agreement in Christine, Texas for a three megawatt commercial EarthStore facility next to a lignite plant that already knows what baseload means.

Then came scale. In August 2024, Meta committed up to one hundred fifty megawatts of geothermal power for data centers east of the Rockies, targeting 2027. Not someday power. Scheduled power. Add the Ormat partnership announced in August 2025, with three existing sites in Nevada and Utah under consideration, and suddenly the calendar tightens. Cindy D. Taff, CEO and former Shell executive, has been clear that plugging into existing infrastructure can pull timelines forward by years, not quarters.

The Series B brings back conviction from Exa, Nabors Industries Ltd., Ignis H2 Energy Inc., Arch Meredith, and others, while adding SiteGround Capital and the UC Berkeley Foundation Climate Solutions Fund. Over two hundred patents sit behind the curtain, along with a team carrying more than one hundred fifty years of drilling and subsurface experience. Sage Geosystems is not chasing the energy transition. It is applying pressure where pressure belongs, underground, patient, and very much awake, while the rest of the grid starts asking harder questions.