Participated · Series B · Jan 2026

Sage Geosystems is a Houston-based pressure geothermal company that extracts energy from hot dry rock by harnessing both the earth’s heat and natural pressure. Its proprietary system supports three main applications: grid-scale energy storage, 24/7 power generation, and direct heating, which together broaden geothermal’s viable geography beyond traditional hydrothermal regions. The firm is currently building its first commercial pressure-geothermal power facility within an existing Ormat power plant, showcasing a pathway to low-cost, baseload renewable electricity. In 2024 Sage signed an agreement with Meta to supply up to 150 MW of geothermal baseload power for data-center expansion east of the Rocky Mountains. Proceeds from the latest financing will fund continued technology development, construction of the inaugural commercial plant, and expansion of its energy-storage offering. Following its Series B, the company has raised more than $97 million to date, backed by a mix of strategic energy players and climate-focused investors. Although Sage has not disclosed revenue or user metrics, the size of this round underscores investor confidence in its ability to scale geothermal as a global clean-energy resource.

Participated · Series A · Jan 2025

Origen develops a limestone-based direct air capture (DAC) technology that leverages the natural chemistry of abundant limestone to absorb CO2, separate the carbon, and store it underground as mineral lime. Its approach includes proprietary technology across the kiln, lime preparation, and air contactor, and the system is fuel flexible to adapt to changing energy mixes. The company aims to scale its process to deliver carbon removal at commercial scale and plans further research at its technology and research centre in Bristol. Origen is advancing projects worldwide, including work on the ground in Louisiana and a facility under construction in North Dakota. It has announced a partnership with the Energy and Environmental Research Center (EERC) to capture 1,000 tonnes per annum and is developing the Pelican Gulf Coast project (with Shell and Mitsubishi) expected to remove up to 50,000 tonnes per year. Origen recently secured funding to support scaling and commercialization, including a Series A announced in January 2025.