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Industry News
March 11, 2025

Capture6 completes $27.5 million Series A and project funding round to scale the production of fresh water and carbon removal

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Capture6 completes $27.5 million Series A and project funding round to scale the production of fresh water and carbon removal

News provided by Capture6

Mar 11, 2025, 08:00 ET

The funding raise, led by Tetrad Corp., and joined by Hyundai Motor Group’s ZER01NE Ventures, Energy Capital Ventures, and Elemental Impact, among others, will support Capture6’s technology for generating value from brine waste.

BERKELEY, Calif., March 11, 2025 /PRNewswire/ — 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.

About Capture6

Capture6 is a water-positive carbon removal company based in California and New Zealand leveraging its technology to support climate resilience and industrial decarbonization. The company develops and commercializes highly scalable approaches to remove carbon dioxide from the atmosphere. Capture6 is pioneering an approach that can be deployed today by repurposing existing industrial-scale technologies. Additionally, when coupled with desalination facilities, Capture6 can recover over 50% of freshwater from desalination waste brine for drinking and industrial purposes in the process of removing CO₂. This creates a meaningful synergy between carbon removal and water security. Learn more at capture6.org.

About Tetrad Corporation

Tetrad Corporation is a family-owned private investment and asset management company founded by the late Walter Scott Jr. Tetrad follows its founder’s long term investment strategy and has primarily focused its diversified portfolio in energy, telecommunication, real estate, banking and agriculture.

About Hyundai Motor Group’s ZER01NE Ventures

ZER01NE Ventures focuses on investing in promising startups that show great potential yet need further support to develop their services and products. Through open collaboration, mutually beneficial partnerships are established in crucial growth sectors ranging from artificial intelligence & machine learning to micro-mobility. A unique aspect of the ZER01NE Ventures is that some startups chosen for further collaboration might not immediately be relevant to the Hyundai Motor Group but hold great future potential. In this way, ZER01NE Ventures helps to further democratize technological investment for greater opportunity and progress for humanity. Learn more at zer01ne.zone.

About Energy Capital Ventures®

Energy Capital Ventures® (ECV) is the only early-stage venture capital firm solely dedicated to the sustainability, resilience and digital transformation of the natural gas industry. In addition to this unique focus that champions innovation in what ECV has defined as green molecules™, the firm further differentiates itself with a customized engagement and deep integration with its strategic limited partners. This model brings together the innovation of the startup ecosystem with the scale of the natural gas industry to build generation companies and enable the future of clean, safe, reliable, cost-effective energy. Learn more at www.energycapitalventures.com.

About Elemental Impact

Elemental Impact is a nonprofit investing platform with 15 years of experience advancing innovative technology that creates lasting economic and environmental benefits across communities. Through our platform, we deploy catalytic capital and provide expert services to a portfolio of 160+ companies across energy, agriculture, transportation, industry, and nature-based solutions. Learn more at www.elementalimpact.com.

About Rothschild & Co, Global Advisory

Rothschild & Co is a family-controlled and independent group and has been at the center of the world’s financial markets for over 200 years. With a team of 4,600 talented financial services specialists on the ground in over 40 countries, Rothschild & Co’s integrated global network of trusted professionals provide in-depth market intelligence and effective long-term solutions for our clients Global Advisory, Wealth & Asset Management, and Five Arrows, its alternative assets arm. Global Advisory, a division of the Rothschild & Co group, designs and executes strategic M&A and financing solutions, providing impartial, expert advice to large and mid-sized corporations, private equity, families and entrepreneurs, and governments. Through its unrivalled network of 1,600 industry and financing specialists in 47 countries, Rothschild & Co’s Global Advisory business combines the breadth of its advisory offering with a high volume of transactions to achieve a unique understanding and perspective into markets and participants worldwide.

Contact
David Ganske
[email protected]

SOURCE Capture6

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