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Capture6

Capture6 is a climate technology company that removes CO₂ from the atmosphere using Direct Air Capture (DAC) with desalination brine waste. This process generates freshwater and valuable green co-products like hydrogen and lithium, achieving permanent carbon removal, water positivity, and industrial decarbonization. Their patented DAC+OAE technology removes 2–3x more CO₂ than DAC alone, contributing to ocean health restoration.
2021
11-50
Berkeley, California, United States

https://capture6.org/

Carbon CaptureClean EnergyCleanTechGreenTechSustainability
Innovation
Investment Funding
People
Products
Future Plan
Awards and Recognitions
M&A and Collabs
News

Innovation

Industry Problem

Capture6 is a climate technology startup focused on tackling the pressing issue of climate change caused by historic and ongoing greenhouse gas emissions.

R&D Focus

Capture6 is a climate technology company specializing in Direct Air Capture (DAC), focusing on removing carbon dioxide directly from the atmosphere to support climate resilience and industrial decarbonization. Their research and development efforts are dedicated to enhancing the efficiency, scalability, and cost-effectiveness of their DAC technology.

Innovative Solution

Capture6 solves the climate challenge by using proven commercial technology to capture CO₂ from desalination brine waste, producing fresh water while eliminating harmful brine discharge. Their process also creates valuable green co-products such as hydrogen and lithium, making efficient use of renewable energy. This integrated approach enables economically viable direct air capture today, avoiding long development timelines and reducing environmental impact.

Solution Effectiveness

– Permanent Carbon Removal: Mineralizes CO₂ for 10,000+ years, addressing residual and historic emissions. – Water Positive: Converts brine into freshwater, aiding 2 billion+ people facing water scarcity. – Industrial Decarbonization: Captures point-source emissions and produces green chemicals to cut scope 1 & 3 emissions. – Enhanced CO₂ Removal: DAC+OAE removes 2–3x more CO₂ than DAC alone. – Ocean Health Restoration: Counteracts acidification and helps restore marine ecosystems.

Investment Funding

Last Funding Stage

Early Stage Venture

Total Funding Amount

$42.2M

Last Funding Amount

$27.5M

Last Funding Date

March 11, 2025

Startup Stage

Series A

Lead Investors

Elemental Impact, US Department of Energy, Energy Capital Ventures, California Energy Commission, Carbon to Value Initiative (C2V Initiative)

People

Founders

  • Ethan Cohen-Cole
  • Luke Shors

Board Members

  • Paula Goldman
  • Ruth Cross Kwansing

CEO

  • Ethan Cohen-Cole

Products

Product

– Capture6’s direct air capture (DAC) technology represents an innovative approach to carbon dioxide removal from ambient air. – Customer Review- “Integrating Capture6’s innovative DAC and water recovery technologies into our model decarbonization initiative will position the country at the forefront of sustainable energy solutions and water management practices.” – Brad Lingo, Pilot Energy Chairman

Star Product

Capture6’s star product is its Direct Air Capture (DAC) system using liquid sorbent and salt-splitting electrochemistry, which stands out for its multi-functional sustainability. It not only captures atmospheric CO₂ for long-term sequestration but also produces fresh water and green chemicals from brine waste, making it a versatile solution that addresses both climate change and water scarcity. Its ability to operate at ambient temperatures, integrate with various industries, and generate multiple revenue streams makes it a flagship offering in the carbon removal space.

Demo Product or Complete Product?

Capture6 has developed a proprietary Direct Air Capture (DAC) technology that uses a liquid sorbent to capture carbon dioxide from ambient air, in 1999.

Future Plan

Market Expansion

– In collaboration with the Palmdale Water District, Capture6 is developing a facility that eliminates the need for up to 100 acres of brine ponds and reduces lifetime costs by up to 40% the aim is to provide Southern California residents with new water supplies while supporting the state’s goal for carbon neutrality by 2045 – Partnering with K-water and BKT/Tomorrow Water, Capture6 is constructing an integrated water management and CO₂ removal facility in South Korea to achieve net-zero emissions by 2050

Awards and Recognitions

Awards

– U.S. Department of Energy award 2024 – World Water Challenge 2023 – The Wilkes Climate Launch Prize 2024

Media Apperance

– Forbes – The Newyork Times – Nature – Politico – Caron Herald – The Verge – Interesting Engineering – Clean Technica – Stuff – Frontiers – The Great Unwind – Green Biz – Chosun Media – One Water News

M&A and Collabs

Collab

Capture6 collaborated with South Korean water treatment company BKT and public water resources management organization K-water to develop a pilot facility in South Korea in 2024

Collab

Capture6 collaborated with Pilot to develop a joint freshwater production, direct air capture and point source capture facility in Western Australia in 2024

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