Capture6
Capture6 is a climate technology company that develops modular systems converting saltwater into fresh water while capturing and storing atmospheric CO2, serving industrial partners, government water agencies, and water-stressed communities through project-based deployments.
- Company typePrivate
- Founded2021
- HeadquartersBerkeley, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Capture6 does
Capture6 is a climate technology company that has developed a modular integrated system converting saltwater into fresh water while simultaneously capturing and storing atmospheric CO2. The company's proprietary technology uses saline formation water and waste brine as feedstock for CO2 capture, producing freshwater and green industrial chemicals as valuable byproducts, and is positioned to replace expensive brine ponds and traditional brine disposal methods at no incremental cost to host sites.
The company is structured as a Public Benefit Corporation, headquartered in the San Francisco Bay Area, with additional offices in New Zealand and an operational presence in Western Australia (Project Wallaby). It deploys its technology through named infrastructure projects—Project Wallaby in Western Australia (developed with Pilot Energy at the Cliff Head onshore plant, targeting up to 35,000 tonnes/year CO2 removal with an expansion option to 350,000 tonnes/year) and Project Monarch in California (with Palmdale Water District for water recovery and brine pond elimination). Two co-founders, Ethan Cohen-Cole (CEO) and Luke Shors, lead the company.
Capture6's business model is project-based, monetizing across multiple revenue streams: freshwater sales to industrial partners and municipalities, carbon removal services (via verified credits or direct payment), and green chemical byproduct sales. Go-to-market is enterprise field sales targeting industrial partners, government agencies, and local communities in water-stressed regions. The company has raised approximately $27.5M in Series A funding led by Tetrad Corp. (March 2025), supplemented by an $8M California Energy Commission award, a US Department of Energy grant, and other non-dilutive and venture capital from investors including Elemental Impact, Energy Capital Ventures, Jacobs Foundation, Sopoong Ventures, Third Derivative, ZER01NE, and Bridge Investment Group.
Capture6 firmographics
Firmographics- Name
- Capture6
- Legal name
- Capture6 Public Benefit Corporation
- Website
- https://capture6.org
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Capture6 is a climate technology company that develops modular systems converting saltwater into fresh water while capturing and storing atmospheric CO2, serving industrial partners, government water agencies, and water-stressed communities through project-based deployments.
- Ownership category
- akta.pro rank
Capture6 industry classification
Industry- Product category
- Carbon Removal and Water Recovery Technology
- NAICS
- Sewage Treatment Facilities (221320), Bottled Water Manufacturing (312112), Waste Collection (5621)
- SIC
- Water Supply (4941), Oil & Gas Field Machinery & Equipment (3533), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)
- akta.pro primary industry
- Direct Air Capture (DAC) Project Development (EUABABAJ)
Keywords
Where Capture6 is headquartered
LocationHeadquarters
- HQ city
- Berkeley
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Capture6 business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Water Recovery and Sales: Revenue generated from converting waste saltwater into fresh water, which can be sold to partner industries, municipalities, and water districts
- Carbon Removal Services: Revenue from carbon dioxide removal solutions, potentially generating carbon credits or direct payment for verified CO2 sequestration
- Green Chemical Byproducts: Revenue from valuable green industrial chemicals produced as byproducts of the conversion process
- Project Partnership Revenue: Partnership-based revenue model where Capture6 deploys technology to reduce partner operational costs while generating multiple revenue streams from byproducts
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
Capture6 product offering
Product offeringCore offering
Capture6 develops and deploys a modular integrated system that converts saltwater into fresh water while simultaneously capturing and storing atmospheric CO2. The technology uses waste brine and saline formation water as feedstock for carbon capture, eliminating expensive brine disposal methods and producing multiple revenue-generating outputs including freshwater and green industrial chemicals. Projects are deployed through partnerships with industries, governments, and communities in water-stressed regions.
Product overview
Capture6 offers a single unified integrated system—a modular technology platform—that turns saltwater into fresh water while capturing and storing atmospheric CO₂. The core product generates multiple revenue streams through valuable byproducts like freshwater and green chemicals, eliminating expensive brine disposal. The company operates through named projects including Project Wallaby (Western Australia) and Project Monarch, which deploy the integrated technology in partnership with local industries and water districts.
Differentiator
Problem solved
Functional benefit
Quantifiable outcome
- Up to 35,000 tonnes CO2 removal per year (commercial scale)
- +2 more outcomes
Companies that use Capture6
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles2 records
Capture6 technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Capture6 partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered flagship.
- Pilot EnergyflagshipPartnership with Pilot Energy for Australia's first direct air capture demonstration facility at Cliff Head onshore plant near Dongara, Western Australia. Plans for commercial-scale operations targeting up to 35,000 tonnes of CO2 removal per year, with expansion option for 350,000 tonnes annually.
- Palmdale Water DistrictflagshipPartnership with Palmdale Water District to significantly reduce costs and eliminate brine ponds. The project advances water recovery and carbon removal solutions.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Capture6 competitors and assessment
Company assessmentDirect peers
- Climeworks: The leading pure-play direct air capture company using solid sorbent technology. Directly comparable as a DAC systems and project developer, with significantly more capital raised, larger commercial deployments (Mammoth), and a longer operational track record.
- Heirloom Carbon: DAC company using limestone-based technology with kilns for sorbent regeneration. Directly comparable as a DAC project developer targeting third-party-verified carbon removal credits, with significant funding and a California footprint overlapping Capture6's.
- 1PointFive: Subsidiary of Occidental Petroleum operating the Stratos DAC plant in Texas using Carbon Engineering's KOH solvent technology. Directly comparable as a commercial-scale DAC project developer pursuing durable carbon removal credits at megaton scale.
- CarbonCapture Inc. US-based DAC company developing proprietary solvent-based capture systems and multi-megaton projects. Directly comparable as a DAC systems and project developer targeting commercial-scale atmospheric CO2 removal.
- Avnos: Hybrid DAC company producing fresh water as a byproduct of CO2 capture — highly comparable to Capture6's dual-output value proposition. Emerging player in the same niche of water-positive carbon removal with similar early-stage scale.
- Spiritus: DAC company developing sorbent-based direct air capture systems aimed at low-cost, modular deployment. Directly comparable as a DAC systems developer targeting commercial-scale CO2 removal with a similar modular philosophy.
- Phlair: Direct air capture company using an electrochemical approach to absorb and release CO2. Directly comparable as a DAC technology developer pursuing lower-cost capture pathways and carbon credit monetization.
Emerging players
- Noya: Direct air capture company retrofitting cooling towers for CO2 capture. Comparable as a DAC technology developer with a focus on lower-cost deployment; overlaps with Capture6's mission of cost-effective carbon removal from atmospheric sources.
Broad incumbents
- Gradiant: Industrial water treatment company specializing in complex water and wastewater challenges including brine management. Comparable in the water-from-brine problem space and as a partner/customer-facing infrastructure platform, but with a much broader water-treatment portfolio.
Others
- Source Global: Atmospheric water generation company producing drinking water from ambient air. Thematically adjacent to Capture6's water-from-unconventional-sources mission, and a potential ecosystem partner rather than direct competitor in the carbon space.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Capture6 social profiles
Digital presenceCapture6 financial estimates
Financial estimateRevenue estimate
Valuation estimate
Capture6 leadership team
Management profileNumber of profiles
Profiles2 records
Capture6 funding detail
Funding detailFunding overview
Funding rounds6 records
Investors11 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Capture6 M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Capture6
What does Capture6 do?
Capture6 develops and deploys a modular integrated system that converts saltwater into fresh water while simultaneously capturing and storing atmospheric CO2. The technology uses waste brine and saline formation water as feedstock for carbon capture, eliminating expensive brine disposal methods and producing multiple revenue-generating outputs including freshwater and green industrial chemicals. Projects are deployed through partnerships with industries, governments, and communities in water-stressed regions.
Is Capture6 a public or private company?
Capture6 is a private company. It is classified as venture growth investor backed and is currently operating.
When was Capture6 founded?
Capture6 was founded in 2021. It employs 11 to 50 people.
Where is Capture6 based?
Capture6 is headquartered in Berkeley, United States, in the North America region.
How does Capture6 make money?
Four revenue lines are on record. Water Recovery and Sales are the primary driver. The others are carbon Removal Services, green Chemical Byproducts and project Partnership Revenue.
Who are Capture6's main competitors?
Direct peers on record are Climeworks, Heirloom Carbon, 1PointFive, CarbonCapture Inc., Avnos, Spiritus and Phlair. Noya is listed as an emerging player. Gradiant is listed as a broad incumbent. Source Global is listed as an others.
Does Capture6 have an API?
No public API is recorded for Capture6.
What industry is Capture6 in?
Capture6's product category is Carbon Removal and Water Recovery Technology. Its primary akta.pro industry code is EUABABAJ, Direct Air Capture (DAC) Project Development. Its NAICS code is 221320 and its SIC code is 4941.