Capture6, a water-positive carbon dioxide removal (CDR) company, has announced the successful completion of a Series A funding round, raising a total of $27.5 million. The funding was chiefly led by Tetrad Corp., with additional support from a variety of investors, including Hyundai Motor Group’s ZER01NE Ventures, Energy Capital Ventures, Elemental Impact, Bridge Investment, Sopoong Ventures, Third Derivative, Stan and Jane Rodbell, and the Jacob S. Shapiro Foundation.
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With the newly acquired funds, Capture6 aims to advance its global network of projects focused on carbon removal and the recovery of water from waste brine. The company has developed an innovative direct air capture (DAC) system that simplifies the traditional processes involved in carbon removal. This technology transforms waste brine into a solvent that mineralises atmospheric carbon dioxide, providing a more efficient solution compared to the conventional, energy-intensive multistep DAC methods.
Capture6’s technology can be integrated into existing industrial-scale water infrastructure, offering a dual benefit: it recovers freshwater from brine—a resource that is frequently discarded—and produces green chemicals essential for water facilities. The company has reported that when deployed in desalination plants, their system can recover more than 50% of freshwater from the waste brine, which is suitable for both drinking and industrial applications.
Ethan Cohen-Cole, CEO of Capture6, remarked, “Climate change is creating water insecurity for much of the world’s population, driving up demand for freshwater worldwide, and exacerbating the root problem as current methods of water treatment are carbon intensive.” He further noted, “Our approach reduces waste streams from desalination and wastewater treatment while generating new water sources, lowering waste disposal costs, improving the efficiency of water production facilities, and decarbonising projects simultaneously.”
Capture6 currently operates out of California and New Zealand, with plans for the establishment of four water-positive carbon removal facilities across three continents. In the previous year, the company also secured a commitment for the pre-purchase of 1,000 tons of carbon removal for Shopify and Stripe, facilitated by the Frontier advance market commitment.
Looking to the future, Capture6 intends to leverage the newly obtained funding to support its global expansion efforts, seeking possibilities to integrate its innovative systems with industrial partners across the United States, Republic of Korea, New Zealand, Australia, and the Middle East. This expansion is part of a broader strategy to combat climate change and improve freshwater access in regions facing increasing water scarcity.
