Capture6, whose integrated system converts waste brine into both fresh water and carbon removal solutions, announces $27.5 million in Series A and project funding. Capture6 was advised by financial advisor Rothschild & Co. for the capital raise and the round was led by private equity firm Tetrad Corporation, with participation by 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. The Series A raise will allow Capture6 to advance core water recovery and carbon removal projects in its global pipeline.

"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," said Capture6 CEO Ethan Cohen-Cole. "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 decarbonizing projects simultaneously."

Capture6's integrated system connects directly with existing water infrastructure to reinvent carbon removal and water treatment simultaneously. Unlike traditional direct air capture methods that use energy-intensive multi-step processes, Capture6's system transforms waste brine — normally expensive to dispose of — into a solvent that directly mineralizes CO2 in a single step. This system creates valuable green chemicals for water facilities while recovering additional freshwater from brine that would otherwise be wasted. By addressing both climate and water security challenges within existing infrastructure, Capture6 offers a practical solution as the World Economic Forum projects freshwater demand to exceed supply by 40% by 2030.

"Numerous businesses and industries face wastewater disposal and freshwater acquisition challenges to their growth and long-term success," said Tetrad spokesperson and board member Aaron Hilkemann. "In Capture6, we see a company committed to addressing these challenges head-on. Their solution decreases the financial burden for businesses and builds momentum around environmentally beneficial methods of water production and waste treatment."

The company recently partnered with Palmdale Water District to eliminate the need for up to 100 acres of brine ponds and save up to 40% in lifetime costs through the use of their technology at a new facility. Capture6 is helping the District provide Southern California residents with new water supplies while helping the state meet its goal for carbon neutrality by 2045.

"Fresh water scarcity demands we rethink traditional water infrastructure to ensure districts can provide affordable, clean water and remove harmful pollutants," said Danya Hakeem, VP of Portfolio at Elemental Impact. "We are proud to double down on our support for Capture6 and the Palmdale Water District project to help deliver meaningful cost savings while providing reliable, clean water to a community that needs it most."

The successful Series A raise demonstrates Capture6's ability to drive business and environmental value simultaneously.

"The technologies with the biggest potential impact are those that enable clean, safe, reliable, cost-effective energy," added Energy Capital Ventures Vic Pascucci. "This funding elevates Capture6 as the industry leader in direct air capture, while simultaneously producing fresh water. After years of studying this space, we recognize Capture6 as a true game-changer through permanent carbon removal plus water security."

Capture6 has so far announced four water-positive carbon capture facilities across three continents. The company is developing a global pipeline, integrating with industrial partners in the U.S., Republic of Korea, New Zealand, Australia, and the Middle East. In 2024, the company also announced that Frontier facilitated a pre-purchase of 1,000 tons of carbon removal for Shopify and Stripe.