Projects: 136
Octavia Carbon
Nairobi, KenyaSub-Saharan Africa’s first Direct Air Capture Company.
Octavia Carbon is the Global South’s first direct air capture (DAC) company. They plan to leverage Kenya’s geothermal energy, geology, and talent to radically accelerate DAC down the cost curve and make Kenya the world’s most cost-effective hub to build and deploy DAC machines by 2025.
The Nakivale Biochar Project
Nakivale Refugee Settlement, Birere, Uganda
The Nakivale biochar in partnership with C-Go, is empowering refugees in Africa’s oldest refugee camp to locally produce biochar for soil enhancement, allowing the project to receive direct carbon removal credit revenues to financially sustain itself. The methodologies it’s trialing have the potential to lock down billions of tonnes of carbon dioxide annually at scale.
Mati Carbon Removals
Raipur, Chhattisgarh, India
Mati removes CO2 using enhanced rock weathering (ERW) of silicate rocks. Their program uses ground basalt-based soil amendment – called “Mati,” and distributes it in rice paddy fields.
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44.01
Fujairah - UAEInjecting carbonated water into underground rocks
44.01 mineralizes carbon dioxide in peridotite rocks by pumping carbonated water into seams of peridotite deep underground. Its first project will mineralize 1,000 tonnes of locally captured carbon dioxide annually until 2024, with plans to scale up its technology to millions of tonnes.
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Brilliant Planet
Akhfenir, Morocco
Brilliant Planet grows algae biomass, then buries it underground where the carbon can remain trapped for thousands of years. Currently operates a pilot site in Morocco and has plans to develop a demonstration site that will be able to remove one million tonnes of carbon dioxide by 2030.
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In-Planet
Bom Retiro, São Paulo - State of São Paulo, BrazilRegenerating soils in the tropics, whilst removing carbon dioxide along the way.
In-Planet permanently removes carbon dioxide from the atmosphere via enhanced rock weathering. It aims to remove 10,000 tonnes of carbon dioxide in 2023, with a plan to scale to a gigatonne of carbon dioxide.
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Husk
Kampong Thum, CambodiaUses discarced rice husks to make carbon-negative fertiliser
Husk uses rice husks to produce biochar that is used as a cheap, carbon-negative fertilizer. Its initial pilot phase plans to remove 16,000 tonnes of carbon dioxide.
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Flux
Kisumu, KenyaUsing enhanced rock weathering to improve soil health in the Global South
Flux uses natural rock powders in the global south to improve soil health, increase farmers’ yields, and permanently sequester millions of tonnes of carbon dioxide.
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Vlinder
Pathein, Myanmar (Burma)Empowering the locals to restore degraded mangroves in Myanmar
The Vlinder, Myanmar Blue Carbon project helps restore degraded mangrove areas and improves the lives of vulnerable communities in the Ayeyarwady region of Myanmar. The project plans to restore over a thousand hectares of degraded land, sequestering close to 100,000 tonnes of carbon dioxide, while providing jobs in the region.
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Seafields
Kingstown, Saint Vincent and the GrenadinesCaptures and grows seaweed for carbon-negative bio-products.
Seafields capture and grow seaweed for use as bioplastics, fertilizer, and biofuel. Any seaweed not sold to industry is shredded, baled, and sunk to the ocean floor, where the carbon it contains can remain sequestered for hundreds of years. At scale, this could remove around a billion tonnes of carbon dioxide from the atmosphere annually.
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Seaweed Generation
Jolly Harbour, Antigua and BarbudaSinks invasive seaweed to the bottom of the ocean, locking up carbon for hundreds of years
Seaweed generation uses robots to sink invasive seaweed into the deep ocean, locking away carbon for hundreds of years. Sinking Sargassum seaweed also helps prevent environmental disasters caused by the seaweed when it hits coasts, where it can also severely impact human health and livelihoods. It has the potential to scale to millions of tonnes of carbon removal.
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CTRL+Z
Hyderabad, Telangana, India
CTRL+Z converts agricultural wastewater to carbon-rich graphene derivatives that are then used in water filtration. This technology could potentially sequester billions of tonnes of carbon dioxide annually.
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Planboo
Colombo, Sri LankaTurn bamboo into biochar
Planboo applies biochar to soil. Planboo’s methodology sequesters carbon dioxide for upwards of a thousand years. It has the potential to reach millions of landowners in the tropics, enabling the gigatonne-scale removal of carbon dioxide.
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Cquestr8
Kuala Lumpur, MalaysiaReversing ocean acidification and storing carbon in the process
Cquestr8 plans to mineralize carbon dioxide into stable ocean bicarbonate. It has the potential to scale to gigatonnes of carbon dioxide removal annually.
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44.01
Fujairah - UAEInjects carbonated water into underground rocks
44.01 mineralizes carbon dioxide in peridotite rocks by pumping carbonated water into seams of peridotite deep underground. Its first project will mineralize 1,000 tonnes of locally captured carbon dioxide annually until 2024, with plans to scale up its technology to millions of tonnes.
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Plant Village
Busia, Kenya
Plant Village helps smallholder farmers adapt to & mitigate climate change by using restorative agricultural practices such as the production and use of biochar fertilizer, no-till agriculture, and cover crops. They want to empower farmers to collectively remove gigatonnes of carbon dioxide annually.
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Takachar
Dehradun, Uttarakhand, IndiaTurns waste-biomass into carbon-negative bioproducts.
Takachar develops small-scale, low-cost portable equipment to convert waste biomass into carbon-negative bioproducts. Takachar-produced biochar already improves crop yields, while its operations are providing new rural livelihoods. It has the potential to remove 2.4 gigatonnes of carbon dioxide a year at scale.
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Varaha
Gurugram, Haryana, IndiaWorld’s first climate teech company focused on developing economies.
Varaha is a global tech-enabled carbon project developer, dedicated to implementing nature-based solutions while maintaining an unwavering commitment to smallholder farmer development and excellence in monitoring, reporting, and verification (MRV) practices. Varaha’s projects have proven their effectiveness in removing and preventing the release of over 1 million tonnes of CO2 emissions within a remarkably short span of just 16 months since our inception.
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Everest Carbon
Neemuch, Madhya Pradesh, IndiaWants to remove a billion tonnes of carbon dioxide for under $100/tonne
Everest Carbon permanently removes carbon dioxide from the atmosphere via enhanced rock weathering. It is on a mission to remove one million tonnes of carbon dioxide by 2026 and plans to scale to a billion tonnes per year by 2030.
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UNDO
Glasgow, UKPermanent carbon dioxide removal with added co-benefits.
UNDO spreads crushed silicate rock on agricultural land, removing carbon dioxide from the atmosphere while enhancing soil health through a process called enhanced rock weathering. UNDO aims to spread enough rock by 2025 to remove one million tonnes of CO₂, a first step towards gigatonne-scale operations.
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Great Carbon Valley
Rift Valley, Mirera, KenyaStores carbon dioxide in underground rock formations.
Great Carbon Valley plans to utilize geological basalt formations to mineralize carbon dioxide captured by Climework DAC technology. Their first plant will be able to remove one million tonnes of carbon dioxide annually by 2030.
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Climeworks
Naivasha, KenyaPlans to open a Kenyan Plant by 2030.
Climeworks uses direct air capture technology to sequester carbon dioxide. Their pilot facility in Iceland has partnered with Carbfix to capture and store more than 4,000 tonnes of carbon dioxide in volcanic basalt rock. They also recently announced plans for a Kenyan Plant that will capture and store over a million tonnes of carbon dioxide annually in partnership with Great Carbon Valley.
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Safi Organics
Nairobi, KenyaDecentralised production of carbon-negative fertiliser from rice-husks.
Safi Organics utilizes rice husks to make biochar that is also used as a carbon-negative organic fertilizer. Its biochar fertilizer has been used by more than 10,000 farmers since its inception, resulting in a 30% increase in crop yield and a 50% increase in farmer income. Currently sequesters around 33,000 tonnes of carbon dioxide annually, with the potential to sequester millions more.
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Biosorra
Nairobi West, Nairobi, KenyaProvides biochar as affordable & sustainable fertiliser to farmers across Sub-Saharan Africa.
Biosorra makes biochar and then provides it as an affordable and sustainable biofertilizer to farming communities in sub-Saharan Africa. For every tonne of biochar placed on fields, 2.5 tonnes of carbon dioxide is removed from the atmosphere. At scale, this has the potential to remove millions of tonnes of carbon dioxide.
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Carbonaught
Brisbane QLD, AustraliaWith expertise spanning mining to AI, Carbonaught are pioneering a new era in low-emission agriculture.
Carbonaught is addressing the interlinked challenges of global food security and accelerating climate change by delivering large scale, permanent carbon removal while building productive, climate resilient soils that boost waterway health and biodiversity outcomes.
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AspiraDac
Sydney NSW, AustraliaPioneering the world’s first modular, scalable and solar-powered Direct Air Capture technology.
AspiraDAC is pioneering a global first of its kind Direct Air Capture (DAC) project using modular and scalable renewable energy (solar) powered units to permanent geological storage.
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Loam
Mildura VIC, AustraliaHarnessing the power of microbes into sustainable solutions.
Loam works with 4.5 billion years of evolution to solve the climate crisis. Microbes have changed the composition of our atmosphere through earth’s history. At Loam, we are ensuring these organisms can do it again. Through a better understanding of how microbes influence the carbon cycle, we can create new planetary-scale opportunities for carbon sequestration and improve agricultural productivity.
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Soil Quest
Canowindra NSW, AustraliaFarmers and scientists transforming agriculture into a Gigaton Carbon Drawdown industry.
The SoilCQuest team work closely on the ground with landholders, understanding the day-to-day farm culture, the drivers and barriers to innovation in agriculture. SoilCQuest has an audacious vision to help double the world’s on-farm carbon stocks by 2031, so that farmers and our planet can thrive.
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Inter Earth
Perth WA, AustraliaPartners with nature to tackle our biggest environmental challenge.
InterEarth is uses photosynthesis to capture CO2 from the atmosphere. They grow trees, harvest their above ground biomass and put that biomass, and its contained carbon, back underground.
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TCHAR
Taipei City, TaiwanRecycling of household sewage sludge and waste biomass.
Through TCHAR’s carbon dioxide removal plants, industrial companies, agriculture and wastewater treatment companies in every region can convert their waste into biochar on-site, while generating renewable energy.
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Yuanchu Technology
Beijing, ChinaAims to permanently sequester carbon dioxide in low energy manners.
Yuanchu’s technology reacts with carbon dioxide in industrial solid waste such as carbide and steel slag to produce carbonate fine particles that can be sold on to indsutry partners enabling carbon capture at profit.
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Living Carbon
Georgia, USAEnhancing Natural Systems
Living Carbon’s advanced biotechnology can help provide solutions to efficiently remove carbon from our atmosphere. Their biotech seedlings are unique in their ability to capture more carbon on less land and they utilize land that is already abandoned or degraded, like abandoned mineland or agricultural land. This means emissions will not go elsewhere, and land use change is limited.
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Running Tide
Portland, Maine, USAOn a mission to harness the power of the ocean since 2010.
Running Tide partners with nature to remove carbon durably and at scale. Made with materials from nature, their various Carbon Buoys designs are created to accelerate natural processes in the ocean. This work moves carbon from the fast cycle to the slow cycle, providing a pathway toward climatically relevant scale.
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Global Algae
Kauai, Hawaii, USAA new type of farm
Global Algae’s vision is to harness the unparalleled productivity of algae to provide food and fuel for the world, dramatically improving the environment, economy, and quality of life for all people.
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Marine Permaculture by Climate Foundation
PhilippinesMarine Permaculture
With kelp’s help, marine ‘permaculture’ (farming in a sustainable and self-sufficient way) has the potential to turn not only the ocean round but the whole planet – because once we grow it at scale, kelp gives with one hand (food, feed, fuel, fertiliser and more) and takes with the other (carbon, out of the atmosphere and upper ocean, storing it safely in the middle and deep ocean for thousands of years).
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Biochar Life
Phrao District, Chiang Mai, ThailandEmpowering Smallholder Farmers. Healing Our Planet.
Biochar Life is on a mission to tackle climate change, enhance public health, and alleviate rural poverty by working with smallholder farmers. They train communities in the creation of biochar and help them generate c-sink credits, putting more money back into their hands while making a global impact.
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Arbon
New York, NY, USAHumidity Swing Direct Air Capture
Arbon uses a ‘humidity-swing’ process to capture CO₂ from the air. The sorbent binds CO₂ when dry and releases it when wet. This process uses less energy than approaches that rely on changing temperature and pressure to release CO₂. The sorbent’s ability to bind CO₂ has been shown to remain stable over thousands of cycles. Both of these innovations could reduce the cost of DAC.
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Airhive
London WC2A 3UT, UK
Carbon removal can’t wait for unproven innovations. Airhive’s patent-pending system builds on the proven industrial process of fluidisation, which optimizes for cost, energy and deployment speed.
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1PointFive
Texas, USACarbon removal at scale
Curbing global temperature rise to 1.5°C by 2050 will take commitment, partnership and tonnes of innovative solutions like carbon removal and geologic sequestration. That’s why 1PointFive is working closely with leading organizations to develop practical pathways to achieve society’s climate targets.
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Aperam
Rio de Janeiro, Brazildedicated to sustainable forest management and charcoal production
The biochar produced at BioEnergia is used in thier steel-making process as a natural and renewable substitute for fossil fuels. This allows us Aperam to entirely eradicate the use of extractive coke and makes their steel a leader in terms of CO2 footprint.
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Spiritus
White Rock, NM, USASustainable Stewardship with Innovative Direct Air Capture
Spiritus stands at the forefront of high-quality direct air capture (DAC) carbon removal, bringing to life a groundbreaking solution that captures and sequesters megaton-scale carbon dioxide from the atmosphere.
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Capture6
Los Angeles, CA, USAIntegrated decarbonization solutions for the net-zero economy
Capture6′ solution, powered by renewable energy, captures and permanently removes CO₂ directly from ambient air. Their approach can be widely deployed today through repurposing a set of existing industrial-scale technologies. They aim to reach gigaton scale within 20 years to meaningfully contribute to climate change solutions.
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Carbon Atlantis
Munich, GermanyBuilding a livable future
Carbon Atlantis are solving the climate crisis by capturing carbon. Their breakthrough carbon capture technology is cost-effective and scalable.
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CarbonCapture Inc.
Cheyenne, Wyoming, USADirect air capture for a net-zero future
CarbonCapture develops and deploys direct air capture machines that can be connected in large arrays to remove CO2 from the atmosphere. With a modular open system architecture, their technology platform allows for rapid deployment, sorbent upgrades, mass production, and scalability. They capture CO2 for permanent removal or use in low-carbon synthetic fuels, concrete, and other industrial products.
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Carbon Collect
Phoenix, Arizona, USAPassive, scalable carbon capture technology
Carbon Collect is a pioneer in the battle against carbon emissions. The company’s cutting edge technology, the MechanicalTree™, represents a new paradigm for Direct Air Capture (DAC). The company is the first to prove passive collection of CO2 from ambient air in a Direct Air Capture system – negating the need for energy intensive forced convection employed in all other DAC solutions.
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Aircapture
Berkeley, CA, USAAir, reinvented
Aircapture is creating and scaling a circular carbon economy. They supply commercial and industrial customers with clean CO2 captured from the atmosphere to radically improve the environment, the economy, and our lives.
AirMyne
Berkeley, CA, USABuilding a scalable approach to Direct Air Capture
AirMyne is a team of engineers, scientists, and problem-solvers on a mission to mitigate the reach of climate change. They believe Direct Air Capture will play a critical role in the battle against climate change in the years to come. For enquiries reach out to sudip@airmyne.com.
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Andes
Chicago, IL, USAApplys microorganisms alongside crop seeds to accelerate the mineralization of CO₂
Andes utilizes bio-mineralization to permanently remove carbon dioxide from the atmosphere. Andes partners with farmers who apply the microbe during planting, a process that seamlessly integrates with existing agricultural practices.
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Arbon Earth
Gothenburg, SwedenProducing oceanpods to accomplish carbon removal at scale.
40 gigatonnes of CO2 needs to be removed from the atmosphere, annually. Arbon earth help reset climate change using algae.
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Avnos
Santa Monica, CA, USACarbon Negative. Water Positive.
Avnos is commercializing the most advanced technology in the Direct Air Capture of CO2. Their proprietary Hybrid Direct Air Capture (HDAC) solution inverts the water paradigm in DAC, producing water, eliminating heat consumption and reducing costs compared to other forms of DAC.
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Calcite by 8 Rivers Capital & Origen
Durham, North Carolina, USADirect air capture that is economic and actionable
Calcite uses the calcium cycle to rapidly absorb CO₂ from the air, offering a low-cost, low-risk solution for large-scale carbon removal. Thanks to simple chemistry and abundant feedstocks, this system can be rapidly deployed, positioning Calcite as one of the first large-scale direct air capture providers.
Carbominer
Kyiv, UkraineCapturing CO₂ from the open air
CO₂ capture technology embodied in modular DAC Units. Avnos is a Ukrainian hardware startup, which has developed a new modular Direct Air Capture technology designed for local CO2 capture near place of use. One of the key advantages of Carbominer’s capture process is its ability to use intermittent energy from renewable sources.
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Carbon Engineering Ltd.
Squamish, BC, CanadaPioneering large-scale Direct Air Capture technology
Carbon Engineering (CE) is focused on the development of large-scale Direct Air Capture (DAC) technology that captures carbon dioxide out of the atmosphere so it can be permanently stored deep underground or used to produce clean, affordable transportation fuels. Located in Squamish, British Columbia, CE’s Innovation Centre is our team’s headquarters for research and development where we continue to advance our DAC technology in support of commercial-scale deployment.
Carbon To Stone
Ithaca, NY, USA“Let’s close the loops,
together”
Carbon to stone helps industry leaders achieve their sustainability goals by turning CO2 and residual materials into valuable resources.
Carbyon
Eindhoven, NetherlandsWe capture the sky
Carbyon is a start-up company founded in 2019 with the purpose of turning direct air capture of CO2 into an affordable and scalable technology. Their ambition is to reach gigaton scale and substantially contribute to mitigating climate change.
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CarpeCarbon
Torino, ItalyWorking to extract CO2 from the atmosphere
Carpe Carbon have a grand total of 65 years of advanced education and research experience, they came together to do their part to preserve the planet for future generations. They are committed to develop one of the most promising solution for carbon removal.
CO2RE – The Greenhouse Gas Removal Hub
41 Westgate, Oxford OX1 1PU, UKUK’s national research hub on Greenhouse Gas Removal (GGR).
Funded by UKRI, CO2RE conduct research on Greenhouse Gas Removal (GGR), co-ordinate demonstration projects around the UK, connect to other national and international programmes and commission grants through a flexible fund.
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Deep Sky
Québec, QC, CanadaDeveloping technology-based carbon removal projects at scale in Canada
Deep Sky is building infrastructure to scale carbon dioxide removal systems, in a tangible way.
Gaia Refinery
Environment and Climate Change Canada, Boulevard Sacré-Coeur, Gatineau, Québec, CanadaThrive on the Planet for Generations to Come.
Gaia Refinery was named from the belief that mother earth (aka Gaia) is made up of living and nonliving components. Gaia is in balance when these components work together, functioning as a single system to regulate conditions suitable for life. We are at a point in time where humankind can act on behalf of mother earth to help ‘refine’ the balance. We can act as a Refinery, on nature’s behalf, to remove harmful elements via an industrial installation, and strive for balance once more.
Global Thermostat
Denver, Colorado, USAThe Air Carbon Solution
Global Thermostat powers global carbon removal and the circular carbon economy, helping restore the Earth’s thermostat with the world’s best solution for capturing carbon dioxide directly from air.
Greenlyte Carbon Technologies
Essen, GermanyFueling the circular carbon economy with green feedstock
Greenlyte Carbon have developed a breakthrough direct air capture technology that turns ambient air into green hydrocarbons to free the world from fossil fuels. By eliminating CO2 from the atmosphere, they help prevent a climate crisis.
Heirloom
Tracy, CA 95377, USARestoring balance to our atmosphere
Leveraging the natural power of limestone to remove 1 billion tons of C02 by 2035 using the world’s most cost-effective Direct Air Capture technology.
Holocene
4028 Papermill Drive Northwest, Knoxville, TN, USARe-Designed from the ground up
Holocene harnesses the power of organic chemistry to remove carbon dioxide from the air, forever. They rely on natural elements — carbon, nitrogen, hydrogen, and oxygen — to do the heavy lifting. Scalable and affordable. Direct air capture (DAC) that works.
Holy Grail Inc
Mountain View, California, USATangible and durable carbon removal
Holy Grail’s modular scrubbers remove CO2 from the atmosphere using electricity. The scrubbers are designed for lean manufacturing and rapid deployment with minimal labor.
Jeevan Climate Solutions
Bethlehem, Pennsylvania 18015, USAEfficient carbon removal
“Jeevan develop breakthrough technology that restores our Earth’s atmosphere Our existing Direct Air Capture technology removes carbon dioxide for less than $100 in energy cost per ton removed. “
Mission Zero Technologies
London, UKClosing the Carbon Cycle
Scaling a low-energy, heat-free technology for Direct Air Capture of CO2
NEG8 Carbon
PKF Waterford, Cork Road, Ballynaneashagh, Waterford, IrelandLet’s remove CO2 together
NEG8 Carbon is a credible disrupter to the challenge of climate change with a scientifically developed and verifiable Direct Air Capture system
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Nellie Technologies
South Wales, Mountain Ash, United KingdomDriven by Delivery
Nellie design, develop and deploy bioengineered carbon dioxide removal technologies. They use proprietary biomass growth, processing and sequestration channels to capture carbon dioxide from direct air and point sources which we then turn into biochar and biogenic aggregates to offer exceptional additionality permanence.
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Neocarbon
GCCQ+6X Berlin, Germanyleveraging existing infrastructure
NeoCarbon captures CO₂ at low cost and at scale by leveraging waste heat and existing infrastructure.
Noya
QGCR+93 Golden Gate Park, San Francisco, CA, USABuilding for a full snowpack for ski season
Noya are deploying Direct Air Capture technology to remove excess CO2 from the atmosphere.
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Nūxsen
9 Centre St, New York, NY 10007, USADAC using electrochemical technology to remove the thermal requirement
Nūxsen are uncovering and advancing ground-breaking technologies to pull CO2 from mixed gas streams and to permanently sequester it underground and in products such as advanced fuels and construction materials.
Parallel Carbon
GV38+8G London, UKReduce and Remove Carbon, In Parallel
Para‖‖el Carbon is developing the hardware platform fundamental to a post-fossil fuel society. They are building technology that removes carbon dioxide from the air while producing hydrogen to eliminate emissions. Their mission is to deliver the world’s most scalable solution to reverse climate change.
ReCarbn
Utrecht, NetherlandsDirect Air Capture as an essential piece in the climate solution puzzle
ReCarbn aims to accelerate the development of Direct Air Capture with a potential to remove gigatons of CO₂ from the atmosphere. ReCarbn technology uses a circulating solid sorbent mechanism (Moving-bed Process), reducing the energy consumption needed for the technology.
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Removr
Oslo, NorwayScaling carbon removal to avoid global warming
Removr’s ambition is to become the global leader in Direct Air Capture. It starts with the world’s first large-scale solid sorbent carbon removal facility, leveraging the best available technology, unique Nordic advantages, and a world-class team and partners.
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SeaO2
Afsluitdijk, Breezanddijk, The NetherlandsDutch Ocean Carbon Removal company harnessing the potential of the oceans
SeaO2’s solution is Direct Ocean Capture, which relies solely on renewable electricity and seawater as inputs. The process uses electrochemistry to strip out CO2 from seawater, which in turn absorbs it from the atmosphere.
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Sirona Technologies
Brussels, BelgiumOn a mission for net zero emission
Sirona is pioneering direct air capture technology to remove CO2 from the air, with a focus on speed, scalability and a low capex design.
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Skyrenu Technologies
Sherbrooke, Quebec, Canadaready to take on the challenge of decarbonization
Skyrenu develops innovative solutions to decarbonize society in order to make carbon neutrality a reality. They recycle mining and industrial residues to sequester CO2 in a reliable and sustainable manner.
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Skytree
9W88+MJ Amsterdam, NetherlandsAtmospheric CO2, reimagined
Skytree’s fully decentralized solution is onsite, has a small carbon footprint, and is both fully modular and stackable.
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Soletair Power
Lappeenranta, Finland
Soletair Power is pioneering carbon dioxide capture technology suitable for integration within urban infrastructures. The technology enables buildings to capture CO2 from the air at ambient airflow rates.
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Sustaera
Durham, North Carolina, USAClean air for a sustainable future.
Centuries of fossil emissions have led to a seismic shift in Earth’s carbon ecosystem. Sustaera, believe a better world is possible. They have developed a novel Direct Air Capture technology which uses renewable energy that will allow us to remove, replace, and reuse carbon at a massive scale to enable a cleaner future.
The Biochar Demonstrator
118 Talbot St, Nottingham NG1 5GP, UK
This interdisciplinary project will address the uncertainties concerning the extent and scope of deployment of biochar, including its stability with respect to carbon sequestration, together with quantifying effects on soil health and ecosystem services, economic viability and social acceptability. Field trials will take place at arable and grassland sites in the Midlands and Wales, an open cast coal mine site in Cumbria, denuded railway embankments, and forestry sites in England and Wales
The Enhanced Rock Weathering Demonstrator
Manor Oaks Road/Blagden Street, Sheffield S2 5QZ, UK
The project will explore amending soils with crushed calcium and magnesium rich silicate rocks from waste quarry fines to accelerate natural CO2 sequestration processes. It will provide the first integrated whole system assessment of the science, societal and scalability opportunities and challenges of enhanced rock weathering deployment in UK agriculture. Field sites are the Plynlimon Experimental Catchments (mid-Wales), Rothamsted Research’s North Wyke grassland experimental platform in Devon, and their cutting-edge arable research facility in Harpenden, Hertfordshire.
The Peatlands Demonstrator
Bangor, UK
The GGR-Peat project will work with natural processes to restore, and where possible enhance, the environmental conditions that lead to peat formation. Simultaneously it will develop innovative approaches to increase rates of CO2 uptake and store it securely for millennia. As part of this project, three experimental test locations will be established in representative lowland and upland peat settings: South Yorkshire, near Doncaster; land owned by the National Trust in the South Pennines; and the Pwllpeiran Upland Research Centre in the Cambrian Mountains of Wales.
The Perennial Biomass Crops Demonstrator
Aberystwyth, UK
The PBC4GGR project is investigating the potential for plants like willow and miscanthus to support BECCS in the UK. It will demonstrate novel establishment techniques that maximise yield whilst minimising greenhouse gas emissions, and provide an up to date quantification of the scope for Greenhouse Gas Removal. The project will establish the conditions required for farmer uptake and wider societal acceptance, and investigate the costs, benefits and trade-offs for biodiversity and ecosystem services. New field trials will be developed – for miscanthus at Bishop Burton College, East Yorkshire and willow at Myerscough College, Lancashire.
The Woodland Creation and Management Demonstrator
31 Sidwell St, Exeter EX4 6NN, UK
The NetZeroPlus project will gather evidence, address knowledge gaps and allow decision makers to explore the Greenhouse Gas Removal consequences of different tree-planting options and explore all the diverse aspects of forestry to identify “the right tree in the right place”. As well as Greenhouse Gas Removal, the project will deliver valuable insights on how tree-planting can deliver other benefits such as enhanced biodiversity, water quality, recreation and health, and pioneer an approach to decision making that takes into account all the effects of land use change.
Tierra Prieta
Parras de la Fuente, Coahuila, MexicoBiochar from Pecan Shells
We have produced, sold, and delivered over 120 tons of biochar made from waste pecan shells.
Ucaneo
Neptunbrunnen, Rathausstraße 1, 10178 Berlin, GermanyReverses climate change with synthetic biology
World’s first cell-free Direct Air Capture technology reversing climate change with synthetic biology
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Verdox
9W4P+JF Boston, MA, USAThe missing piece in the planet’s resistance
Verdox’s patented technology is radically different from existing carbon removal solutions that use large amounts of heat in their processes. Their systems control the capture and delivery of CO₂ simply by applying a current at select voltages.
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Carbo Culture
Köydenpunojankatu 2, 00180 Helsinki, Finlanda climate technology company building a rapidly scalable biochar carbon removal solution
Plants draw down CO2 from the atmosphere via photosynthesis and solar power at unbeatable efficiency. We take waste biomass and transform it using our patented reactors, permanently storing the carbon in an inert, solid form called biochar. Our unique process produces high-quality biochar for agricultural and construction applications, generates renewable energy, and creates some of the most tangible carbon credits on the market.
Paebbl
Sofiankatu 4, 00170 Helsinki, FinlandThe re-stored carbon company
A Nordic/Dutch company on a mission to put a lot of CO2 to good use in solid carbonate materials.
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Puro.Earth
Lapinlahdenkatu, Helsinki, FinlandThe world’s leading crediting platform for engineered carbon removal
Puro.earth ensure companies can neutralize carbon emissions with science-based carbon removals and remain trusted on the road to carbon net-zero. The platform brings together suppliers of carbon net-negative technologies and climate conscious companies. The company issue verified CO2 Removal Certificates (CORCs), a new kind of carbon offset based on carbon removed from the atmosphere for the long term.
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ecoLocked
Spandauer Straße / Grunerstraße, 10178 Berlin, Germany
ecoLocked is turning buildings into carbon sinks. We convert captured carbon from waste biomass (biochar) into powerful, carbon-negative construction materials. Our products permanently store CO2 in the built environment, reduce the need for fossil raw materials, and deliver material performance improvements in areas like insulation, durability and production efficiency. We just released our first product, an additive to create 100% carbon-neutral concrete (ready-mixed & precast). The video below shows an example project with ready-mixed concrete.
Graphyte
Memphis, Tennessee, USAEncases biomass preventing decomposition
Combining photosynthesis with practical engineering, Graphyte’s Carbon Casting technology provides an immediate pathway for billions of tons of low-cost, permanent carbon removal. With levelized production costs at under $100/ton with minimal energy requirements, we can remove CO2 for 1,000+ years.
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Pull To Refresh
Panama City, PanamaUses solar unmanned vessels to sink invasive seaweed to the deep sea
Carbon Drawdown Initiative
Fürth, GermanyExtensive greenhouse experiment to investigate MRV approaches for rock weathering.
In their extensive greenhouse experiment, the carbon drawdown initiative is trying to find ways to measure the CDR effects caused by adding rock dust to agricultural soils on short timescales (months to years). Overall, they record 4.5 million data points per day. Their mission is to find a short term (month/years) measuerment approach for ERW.
Silicate
Wellingtonbridge, Wexford, Ireland
Enhanced weathering trial using returned concrete as an enhanced weathering feedstock.
Carbon Lockdown
Potomac River, Maryland, USAFacilitates sustainable carbon sequestration technologies
Captura
Kårstøvegen 1, Sekundær Fylkesvei 798, 5565 Tysværvåg, NorwayUses established electrochemical concepts to enable gigatonne removals
Developed and proven in Caltech’s laboratories, Captura uses established electrochemical concepts to enable gigatonne-scalable solutions for removing carbon dioxide from the atmosphere via direct ocean capture. We capture carbon dioxide using only renewable electricity and ocean water, producing no by-products. Captura’s mission is globally scalable carbon capture to support a sustainable future for the world’s climate.
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Ebb Carbon
Pacific Northwest National Laboratory, Battelle Boulevard, Richland, WA, USAEnhances ocean’s natural ability to store CO2
Ebb Carbon is pioneering a new carbon removal solution by enhancing the ocean’s natural ability to safely store CO2. Our electrochemical ocean alkalinity enhancement method has the potential to be one of the largest scale and lowest cost approaches to removing excess CO2, while reducing ocean acidity.
Arbor
Mojave, CA, USAConverts wate into clean energy and fresh water
Arbor is developing a scalable and low-cost approach to reverse humanity’s climate footprint, leveraging advanced rocket engine technology and Earth’s own natural rhythms. They are designing, manufacturing, and operating systems that will restore balance to the planet and set the foundation for a global circular economy. Their technology converts waste into clean energy and fresh water, while permanently removing CO2 from the atmosphere.
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Bio-Restorative Ideas (BRi)
San Juan, Puerto RicoTransform any organic matter into fixed carbon
BRI developed a model for achieving rapid carbon footprint reduction through permanent sequestration of CO2 while providing environmentally and socially conscious revenue sources. They transform any organic matter into fixed carbon that gets stored permanently in the soil and in the process quantify how much carbon was sequestered from the atmosphere.
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Carba
Minneapolis, MN, United StatesPermanently bury nature-based biomass for thousands of years.
Carba specializes in low energy Carbon Dioxide Removal (CDR) solutions with permanent storage. Through low temperature pyrolysis (torrefaction) we convert nature-based biomass/waste into graphitic carbon and permanently bury/store it for thousands of years.
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Arca
Vancouver, BC, CanadaTransform CO2 into rocks
We remove excess CO₂ from the atmosphere, and transform it into rocks – naturally storing it for millennia. We can still reverse climate change if we act fast, and develop solutions that scale. For our part, we capture and store CO2 permanently by speeding up the natural process of carbon mineralization. And because our technology uses the waste from critical metal mines, it keeps a light footprint while supporting the clean energy transition.
Carbfix
Reykjavík, IcelandCaptures CO2 and turns it into stone
Carbfix captures CO2 and turns it into stone underground in less than two years through proprietary technology. The company’s mission is to be a key instrument to tackle the climate crisis and substantially reduce global CO2 emissions.
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greenSand
Enkhuizen, Noord-Holland, NetherlandsRemoves CO2 using Olvine
greenSand focuses on removing certified CO2 using the mineral Olivine. Removal by reactions with olivine is an attractive option, because it is widely available and reacts easily with the (acid) CO2 from the atmosphere. When olivine is crushed, it weathers within a couple of years, depending on the grain size and humidity. The reaction is exothermic but slow. The end-products of the reaction are silicon dioxide, magnesium carbonate, and small amounts of iron oxide.
Lithos
Chicago, IL, USAUsing ERW in the American Midwest.
We remove atmospheric carbon for a fraction of the cost while increasing crop yields. Our process is highly efficient, increases soil health, and repurposes post-industrial waste. Then we sell the carbon credits to companies and split revenue with our regenerative growers. With a world-class team leveraging expertise in soil chemistry, agronomy, geochemistry, machine learning, and logistics, we are engineering the most cost-effective, and scientifically rigorous solution to enhanced rock weathering at scale.
Neustark
Berlin, GermanyRecycles concrete, storing carbon along the way.
Switzerland-based Neustark’s technology permanently stores CO2 from the air in recycled mineral waste such as demolished concrete. Its first commercial-scale plant in the EU is located at a construction waste recycling facility on the outskirts of Berlin.
Vesta
Southampton, NY, United StatesCoastline enhanced rock weathering
Vesta’s mission is to further the science of Coastal Carbon Capture and galvanize global deployment. Coastal Carbon Capture harnesses the power of the oceans to accelerate the Earth’s natural long-term carbon dioxide removal process and enhance coastal resilience. Vesta is a Public Benefit Corporation, a mission-driven company dedicated to leaving a world in which all can thrive. Part of the funding for our scientific research is from the Coastal Carbon Capture Impact Fund, a 501(c)(3) public charity.
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Exomad Green
Concepcion, BoliviaCommitted to becoming the world’s leading producer of sustainable Biochar
We are Exomad Green, a company committed to the vision of becoming the world’s leading producer of sustainable Biochar. At the heart of our mission is the conviction that Biochar plays a crucial role in creating a more sustainable future.
Forestmatic
Northern, UgandaChampions global tree-planting.
Forestmatic is a data-driven digital solution championing global tree-planting and forest ecosystem restoration, providing proof of planting and proof of survival to drive transparency, reliability and results in corporate climate investment.
Carbon Centric
Rakkestad, Stathelle, NorwayBiochar and carbon credit trader.
Vycarb
New York City, NY, United StatesRemoves carbon dioxide from water.
Vycarb’s fully-measured carbon management system performs real-time, autonomous removal, storage, and verification of CO2 in water. With multiple pilots deployed on the US east coast, Vycarb’s modular, autonomous system uses a real-time measurement technology and accelerated alkalinity dissolution to optimize CO2 removal to water’s naturally-changing chemical conditions. Designed for deployment across any high-CO2 waters, Vycarb’s system creates the first fully-measured, ecologically beneficial carbon removal and storage that can be distributed around the world.
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Carboniferous
Gulf of MexicoSinks leftover surgar cane and corn fibre into the deep ocean.
Carboniferous is safely and purposefully replicating the process of anoxic biomass carbon sequestration. We are a BiCRS pathway, storing terrestrial biomass in naturally forming permanent anoxic basins under the ocean.
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Banyu Carbon
CoMotion Labs at Fluke Hall, University of WashingtonUses sunlight to degas seawater
Banyu uses sunlight to capture CO₂ from seawater. A reusable, light-activated molecule that becomes acidic when exposed to light causes carbon dissolved in seawater to degas as CO₂, which is then stored permanently. Because only a small portion of the visible light spectrum is needed to trigger the reaction, this is a highly energy-efficient approach to direct ocean removal.
Vaulted Deep
Hutchinson, Kansas, USABuries sludgy organic waste.
Vaulted Deep injects organic waste into durable wells, where the carbon in the waste is sequestered as it decomposes. Using a specialized slurry injection technology, their process can handle a wide range of organic carbon sources with minimal energy and upfront processing. Their system has the potential to be deployed quickly at large scales.
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Rewind.earth
Black SeaSinking agricultural and forest waste.
Rewind uses cranes off of boats to sink agricultural and forest residues to the oxygenless bottom of the Black Sea, the largest anoxic body of water on Earth. Oxygenless water dramatically slows biomass decomposition. The lack of living organisms in the Black Sea limits any potential ecosystem risks. This process allows for affordable and environmentally safe carbon removal.
Carbon Capture Scotland
Crocketford, Dumfries, Scotland, UKCapture, utilisation and storage of biogenic CO₂
AirFix
Zürich, SwitzerlandScaling Biomass Carbon Removal and Storage
Airfix – a new subsidiary of South Pole – combines decades of climate finance and carbon project development expertise with a vision for a scalable Biomass Carbon Removal and Storage (BiCRS) market in Switzerland and beyond. They aim to remove 5,000,000 tonnes of CO₂e in 10 years.
Stockholm Exergi
Stockholm Exergi AB, Jägmästargatan, Stockholm, SwedenWhere the next steps to capture carbon dioxide will take place.
Exterra Carbon Solutions
Thetford Mines, Quebec, CanadaMimics the natural weathering of rocks, significantly accelerating CO2 mineralization
Exterra reduces the environmental impact of carbon emissions and raw material production by developing projects that transform mineral waste and CO2 into carbonate minerals and byproducts using our proprietary chemical process. The carbonate minerals are used on-site for site rehabilitation, where the CO2 remains locked away for millennia, avoiding the climate impact of atmospheric greenhouse gasses.
ClimeRock
Colombes, FranceMaking ERW accessible, starting with France
ClimeRock is a French startup focused on Enhanced Rock Weathering (ERW) – a natural solution that captures carbon dioxide from the air by spreading finely ground rocks over large areas of land. ERW also improves soil health and productivity for farmers. ClimeRock aims to make ERW accessible to farming lands globally, starting with France. ERW utilizes abundant natural resources and has the potential to scale up rapidly to reach net-zero emissions.
Pull To Refresh
Panama City, PanamaUses solar unmanned vessels to sink invasive seaweed to the deep sea.
Graphyte
Memphis, Tennessee, USAEncases biomass preventing decomposition.
Combining photosynthesis with practical engineering, Graphyte’s Carbon Casting technology provides an immediate pathway for billions of tons of low-cost, permanent carbon removal. With levelized production costs at under $100/ton with minimal energy requirements, we can remove CO2 for 1,000+ years.
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Eion
Mississippi, USAworks with American heartland communities to safely and permanently remove CO2.
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Equatic
SingaporeSeawater electroysis
Equatic powers the green economy. Our seawater electrolysis couples carbon dioxide removal (CDR) from the atmosphere with the generation of green hydrogen at the lowest costs.
CarbonBlue
Maagan Michael, IsraelA first-of-its-kind pilot of marine calcium looping direct ocean capture integrated with a desalination facility.
The project is a pilot facility that demonstrates CarbonBlue’s water-based calcium looping technology. It is integrated with a brackish water desalination facility in Maagan Michael, Israel. Operation at full capacity of 400 tpy will commence in 2024.
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Planteers GmbH
Hamburg, GermanyReactor-based ocean alkalinity enhancement
We exploit CO2 from wastewater treatment facilities, mix it with water and limestone. During the reaction, CO2 is consumed and trapped as alkaline solution. Afterwards, the solution is diluted until it is uncritical for the local aquatic system and discharged into river estuaries or oceans.
Epiphyte
University of Pennsylvania, Philadelphia, PA, USAOpen source direct air capture machines
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Repair
Yokne'am Illit, Israelfounded in 2020 with a mission to pioneer the most sustainable carbon dioxide removal solution.
Carbon Reform
Philadelphia, Pennsylvania, USAModular direct air capture, energy savings, and improved indoor air quality for buildings
CarbonBuilt
Childersburg, Alabama, USAWorld’s first ultra-low carbon concrete mineralizes atmospheric carbon
CarbonBuilt produces the world’s first ultra-low carbon concrete blocks. The new blocks reduce embodied carbon by 70-100+% through cement replacement and by mineralizing atmospheric CO2. They cost no more to produce than traditional concrete. More plants are in development.
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Novocarbo
Grevesmühlen, GermanyOne of Germany’s largest carbon removal parks
Novocarbo builds and operates carbon removal parks worldwide, pursuing the goal of removing 1 million tons of CO2 from the atmosphere by 2030. The Carbon Removal Park in the Baltic Sea is our largest site to date and a unique example in Germany of a holistic approach to CO2 removal and green heat generation. We use state-of-the-art pyrolysis technology to process plant residues into biochar.
Minus Materials
Boulder, CO, USAUsing algae to generate carbon negative limestone for cement!
With this breakthrough demonstration project Minus Materials will install and operate a first-of-its-kind “regenerative quarry” pilot project in Boulder County that will support the production of carbon-negative biorenewable limestone using microalgae. Limestone produced can be used as a substitute for conventional emissions intensive ‘clinker’, the base component of Portland cement.
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Climeworks: Orca and Mammoth
Hellisheiði, IcelandThe world’s first commercial Direct Air Capture deployments, paired with subsurface mineral storage.
Climeworks’ Orca is the first operational commercial direct air capture plant in the world, commissioned in 2021. Mammoth, with nearly 4 times the carbon removal capacity, is not far behind, scheduled for completion in 2024. Both plants store CO2 underground in durable mineral form, partnering with CarbFix, a leading Iceland-based innovator in the CO2 mineralization field.
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Featured Projects:
Octavia Carbon
Nairobi, KenyaSub-Saharan Africa’s first Direct Air Capture Company.
Octavia Carbon is the Global South’s first direct air capture (DAC) company. They plan to leverage Kenya’s geothermal energy, geology, and talent to radically accelerate DAC down the cost curve and make Kenya the world’s most cost-effective hub to build and deploy DAC machines by 2025.
The Nakivale Biochar Project
Nakivale Refugee Settlement, Birere, Uganda
The Nakivale biochar in partnership with C-Go, is empowering refugees in Africa’s oldest refugee camp to locally produce biochar for soil enhancement, allowing the project to receive direct carbon removal credit revenues to financially sustain itself. The methodologies it’s trialing have the potential to lock down billions of tonnes of carbon dioxide annually at scale.
Mati Carbon Removals
Raipur, Chhattisgarh, India
Mati removes CO2 using enhanced rock weathering (ERW) of silicate rocks. Their program uses ground basalt-based soil amendment – called “Mati,” and distributes it in rice paddy fields.
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Brilliant Planet
Akhfenir, Morocco
Brilliant Planet grows algae biomass, then buries it underground where the carbon can remain trapped for thousands of years. Currently operates a pilot site in Morocco and has plans to develop a demonstration site that will be able to remove one million tonnes of carbon dioxide by 2030.
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In-Planet
Bom Retiro, São Paulo - State of São Paulo, BrazilRegenerating soils in the tropics, whilst removing carbon dioxide along the way.
In-Planet permanently removes carbon dioxide from the atmosphere via enhanced rock weathering. It aims to remove 10,000 tonnes of carbon dioxide in 2023, with a plan to scale to a gigatonne of carbon dioxide.
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Seafields
Kingstown, Saint Vincent and the GrenadinesCaptures and grows seaweed for carbon-negative bio-products.
Seafields capture and grow seaweed for use as bioplastics, fertilizer, and biofuel. Any seaweed not sold to industry is shredded, baled, and sunk to the ocean floor, where the carbon it contains can remain sequestered for hundreds of years. At scale, this could remove around a billion tonnes of carbon dioxide from the atmosphere annually.
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CTRL+Z
Hyderabad, Telangana, India
CTRL+Z converts agricultural wastewater to carbon-rich graphene derivatives that are then used in water filtration. This technology could potentially sequester billions of tonnes of carbon dioxide annually.
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Planboo
Colombo, Sri LankaTurn bamboo into biochar
Planboo applies biochar to soil. Planboo’s methodology sequesters carbon dioxide for upwards of a thousand years. It has the potential to reach millions of landowners in the tropics, enabling the gigatonne-scale removal of carbon dioxide.
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Plant Village
Busia, Kenya
Plant Village helps smallholder farmers adapt to & mitigate climate change by using restorative agricultural practices such as the production and use of biochar fertilizer, no-till agriculture, and cover crops. They want to empower farmers to collectively remove gigatonnes of carbon dioxide annually.
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Takachar
Dehradun, Uttarakhand, IndiaTurns waste-biomass into carbon-negative bioproducts.
Takachar develops small-scale, low-cost portable equipment to convert waste biomass into carbon-negative bioproducts. Takachar-produced biochar already improves crop yields, while its operations are providing new rural livelihoods. It has the potential to remove 2.4 gigatonnes of carbon dioxide a year at scale.
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Varaha
Gurugram, Haryana, IndiaWorld’s first climate teech company focused on developing economies.
Varaha is a global tech-enabled carbon project developer, dedicated to implementing nature-based solutions while maintaining an unwavering commitment to smallholder farmer development and excellence in monitoring, reporting, and verification (MRV) practices. Varaha’s projects have proven their effectiveness in removing and preventing the release of over 1 million tonnes of CO2 emissions within a remarkably short span of just 16 months since our inception.
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Everest Carbon
Neemuch, Madhya Pradesh, IndiaWants to remove a billion tonnes of carbon dioxide for under $100/tonne
Everest Carbon permanently removes carbon dioxide from the atmosphere via enhanced rock weathering. It is on a mission to remove one million tonnes of carbon dioxide by 2026 and plans to scale to a billion tonnes per year by 2030.
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UNDO
Glasgow, UKPermanent carbon dioxide removal with added co-benefits.
UNDO spreads crushed silicate rock on agricultural land, removing carbon dioxide from the atmosphere while enhancing soil health through a process called enhanced rock weathering. UNDO aims to spread enough rock by 2025 to remove one million tonnes of CO₂, a first step towards gigatonne-scale operations.
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Great Carbon Valley
Rift Valley, Mirera, KenyaStores carbon dioxide in underground rock formations.
Great Carbon Valley plans to utilize geological basalt formations to mineralize carbon dioxide captured by Climework DAC technology. Their first plant will be able to remove one million tonnes of carbon dioxide annually by 2030.
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Climeworks
Naivasha, KenyaPlans to open a Kenyan Plant by 2030.
Climeworks uses direct air capture technology to sequester carbon dioxide. Their pilot facility in Iceland has partnered with Carbfix to capture and store more than 4,000 tonnes of carbon dioxide in volcanic basalt rock. They also recently announced plans for a Kenyan Plant that will capture and store over a million tonnes of carbon dioxide annually in partnership with Great Carbon Valley.
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Safi Organics
Nairobi, KenyaDecentralised production of carbon-negative fertiliser from rice-husks.
Safi Organics utilizes rice husks to make biochar that is also used as a carbon-negative organic fertilizer. Its biochar fertilizer has been used by more than 10,000 farmers since its inception, resulting in a 30% increase in crop yield and a 50% increase in farmer income. Currently sequesters around 33,000 tonnes of carbon dioxide annually, with the potential to sequester millions more.
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Biosorra
Nairobi West, Nairobi, KenyaProvides biochar as affordable & sustainable fertiliser to farmers across Sub-Saharan Africa.
Biosorra makes biochar and then provides it as an affordable and sustainable biofertilizer to farming communities in sub-Saharan Africa. For every tonne of biochar placed on fields, 2.5 tonnes of carbon dioxide is removed from the atmosphere. At scale, this has the potential to remove millions of tonnes of carbon dioxide.
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Carbonaught
Brisbane QLD, AustraliaWith expertise spanning mining to AI, Carbonaught are pioneering a new era in low-emission agriculture.
Carbonaught is addressing the interlinked challenges of global food security and accelerating climate change by delivering large scale, permanent carbon removal while building productive, climate resilient soils that boost waterway health and biodiversity outcomes.
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AspiraDac
Sydney NSW, AustraliaPioneering the world’s first modular, scalable and solar-powered Direct Air Capture technology.
AspiraDAC is pioneering a global first of its kind Direct Air Capture (DAC) project using modular and scalable renewable energy (solar) powered units to permanent geological storage.
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Soil Quest
Canowindra NSW, AustraliaFarmers and scientists transforming agriculture into a Gigaton Carbon Drawdown industry.
The SoilCQuest team work closely on the ground with landholders, understanding the day-to-day farm culture, the drivers and barriers to innovation in agriculture. SoilCQuest has an audacious vision to help double the world’s on-farm carbon stocks by 2031, so that farmers and our planet can thrive.
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Running Tide
Portland, Maine, USAOn a mission to harness the power of the ocean since 2010.
Running Tide partners with nature to remove carbon durably and at scale. Made with materials from nature, their various Carbon Buoys designs are created to accelerate natural processes in the ocean. This work moves carbon from the fast cycle to the slow cycle, providing a pathway toward climatically relevant scale.
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Biochar Life
Phrao District, Chiang Mai, ThailandEmpowering Smallholder Farmers. Healing Our Planet.
Biochar Life is on a mission to tackle climate change, enhance public health, and alleviate rural poverty by working with smallholder farmers. They train communities in the creation of biochar and help them generate c-sink credits, putting more money back into their hands while making a global impact.
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Airhive
London WC2A 3UT, UK
Carbon removal can’t wait for unproven innovations. Airhive’s patent-pending system builds on the proven industrial process of fluidisation, which optimizes for cost, energy and deployment speed.
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CarbonCapture Inc.
Cheyenne, Wyoming, USADirect air capture for a net-zero future
CarbonCapture develops and deploys direct air capture machines that can be connected in large arrays to remove CO2 from the atmosphere. With a modular open system architecture, their technology platform allows for rapid deployment, sorbent upgrades, mass production, and scalability. They capture CO2 for permanent removal or use in low-carbon synthetic fuels, concrete, and other industrial products.
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AirMyne
Berkeley, CA, USABuilding a scalable approach to Direct Air Capture
AirMyne is a team of engineers, scientists, and problem-solvers on a mission to mitigate the reach of climate change. They believe Direct Air Capture will play a critical role in the battle against climate change in the years to come. For enquiries reach out to sudip@airmyne.com.
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Andes
Chicago, IL, USAApplys microorganisms alongside crop seeds to accelerate the mineralization of CO₂
Andes utilizes bio-mineralization to permanently remove carbon dioxide from the atmosphere. Andes partners with farmers who apply the microbe during planting, a process that seamlessly integrates with existing agricultural practices.
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Calcite by 8 Rivers Capital & Origen
Durham, North Carolina, USADirect air capture that is economic and actionable
Calcite uses the calcium cycle to rapidly absorb CO₂ from the air, offering a low-cost, low-risk solution for large-scale carbon removal. Thanks to simple chemistry and abundant feedstocks, this system can be rapidly deployed, positioning Calcite as one of the first large-scale direct air capture providers.
Carbon Engineering Ltd.
Squamish, BC, CanadaPioneering large-scale Direct Air Capture technology
Carbon Engineering (CE) is focused on the development of large-scale Direct Air Capture (DAC) technology that captures carbon dioxide out of the atmosphere so it can be permanently stored deep underground or used to produce clean, affordable transportation fuels. Located in Squamish, British Columbia, CE’s Innovation Centre is our team’s headquarters for research and development where we continue to advance our DAC technology in support of commercial-scale deployment.
Carbon To Stone
Ithaca, NY, USA“Let’s close the loops,
together”
Carbon to stone helps industry leaders achieve their sustainability goals by turning CO2 and residual materials into valuable resources.
Carbyon
Eindhoven, NetherlandsWe capture the sky
Carbyon is a start-up company founded in 2019 with the purpose of turning direct air capture of CO2 into an affordable and scalable technology. Their ambition is to reach gigaton scale and substantially contribute to mitigating climate change.
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Global Thermostat
Denver, Colorado, USAThe Air Carbon Solution
Global Thermostat powers global carbon removal and the circular carbon economy, helping restore the Earth’s thermostat with the world’s best solution for capturing carbon dioxide directly from air.
Greenlyte Carbon Technologies
Essen, GermanyFueling the circular carbon economy with green feedstock
Greenlyte Carbon have developed a breakthrough direct air capture technology that turns ambient air into green hydrocarbons to free the world from fossil fuels. By eliminating CO2 from the atmosphere, they help prevent a climate crisis.
Heirloom
Tracy, CA 95377, USARestoring balance to our atmosphere
Leveraging the natural power of limestone to remove 1 billion tons of C02 by 2035 using the world’s most cost-effective Direct Air Capture technology.
Holocene
4028 Papermill Drive Northwest, Knoxville, TN, USARe-Designed from the ground up
Holocene harnesses the power of organic chemistry to remove carbon dioxide from the air, forever. They rely on natural elements — carbon, nitrogen, hydrogen, and oxygen — to do the heavy lifting. Scalable and affordable. Direct air capture (DAC) that works.
Mission Zero Technologies
London, UKClosing the Carbon Cycle
Scaling a low-energy, heat-free technology for Direct Air Capture of CO2
NEG8 Carbon
PKF Waterford, Cork Road, Ballynaneashagh, Waterford, IrelandLet’s remove CO2 together
NEG8 Carbon is a credible disrupter to the challenge of climate change with a scientifically developed and verifiable Direct Air Capture system
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Neocarbon
GCCQ+6X Berlin, Germanyleveraging existing infrastructure
NeoCarbon captures CO₂ at low cost and at scale by leveraging waste heat and existing infrastructure.
Nūxsen
9 Centre St, New York, NY 10007, USADAC using electrochemical technology to remove the thermal requirement
Nūxsen are uncovering and advancing ground-breaking technologies to pull CO2 from mixed gas streams and to permanently sequester it underground and in products such as advanced fuels and construction materials.
SeaO2
Afsluitdijk, Breezanddijk, The NetherlandsDutch Ocean Carbon Removal company harnessing the potential of the oceans
SeaO2’s solution is Direct Ocean Capture, which relies solely on renewable electricity and seawater as inputs. The process uses electrochemistry to strip out CO2 from seawater, which in turn absorbs it from the atmosphere.
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Soletair Power
Lappeenranta, Finland
Soletair Power is pioneering carbon dioxide capture technology suitable for integration within urban infrastructures. The technology enables buildings to capture CO2 from the air at ambient airflow rates.
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Tierra Prieta
Parras de la Fuente, Coahuila, MexicoBiochar from Pecan Shells
We have produced, sold, and delivered over 120 tons of biochar made from waste pecan shells.
Carbo Culture
Köydenpunojankatu 2, 00180 Helsinki, Finlanda climate technology company building a rapidly scalable biochar carbon removal solution
Plants draw down CO2 from the atmosphere via photosynthesis and solar power at unbeatable efficiency. We take waste biomass and transform it using our patented reactors, permanently storing the carbon in an inert, solid form called biochar. Our unique process produces high-quality biochar for agricultural and construction applications, generates renewable energy, and creates some of the most tangible carbon credits on the market.
Paebbl
Sofiankatu 4, 00170 Helsinki, FinlandThe re-stored carbon company
A Nordic/Dutch company on a mission to put a lot of CO2 to good use in solid carbonate materials.
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Puro.Earth
Lapinlahdenkatu, Helsinki, FinlandThe world’s leading crediting platform for engineered carbon removal
Puro.earth ensure companies can neutralize carbon emissions with science-based carbon removals and remain trusted on the road to carbon net-zero. The platform brings together suppliers of carbon net-negative technologies and climate conscious companies. The company issue verified CO2 Removal Certificates (CORCs), a new kind of carbon offset based on carbon removed from the atmosphere for the long term.
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ecoLocked
Spandauer Straße / Grunerstraße, 10178 Berlin, Germany
ecoLocked is turning buildings into carbon sinks. We convert captured carbon from waste biomass (biochar) into powerful, carbon-negative construction materials. Our products permanently store CO2 in the built environment, reduce the need for fossil raw materials, and deliver material performance improvements in areas like insulation, durability and production efficiency. We just released our first product, an additive to create 100% carbon-neutral concrete (ready-mixed & precast). The video below shows an example project with ready-mixed concrete.
Carbon Drawdown Initiative
Fürth, GermanyExtensive greenhouse experiment to investigate MRV approaches for rock weathering.
In their extensive greenhouse experiment, the carbon drawdown initiative is trying to find ways to measure the CDR effects caused by adding rock dust to agricultural soils on short timescales (months to years). Overall, they record 4.5 million data points per day. Their mission is to find a short term (month/years) measuerment approach for ERW.
Silicate
Wellingtonbridge, Wexford, Ireland
Enhanced weathering trial using returned concrete as an enhanced weathering feedstock.
Carbon Lockdown
Potomac River, Maryland, USAFacilitates sustainable carbon sequestration technologies
Captura
Kårstøvegen 1, Sekundær Fylkesvei 798, 5565 Tysværvåg, NorwayUses established electrochemical concepts to enable gigatonne removals
Developed and proven in Caltech’s laboratories, Captura uses established electrochemical concepts to enable gigatonne-scalable solutions for removing carbon dioxide from the atmosphere via direct ocean capture. We capture carbon dioxide using only renewable electricity and ocean water, producing no by-products. Captura’s mission is globally scalable carbon capture to support a sustainable future for the world’s climate.
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Arbor
Mojave, CA, USAConverts wate into clean energy and fresh water
Arbor is developing a scalable and low-cost approach to reverse humanity’s climate footprint, leveraging advanced rocket engine technology and Earth’s own natural rhythms. They are designing, manufacturing, and operating systems that will restore balance to the planet and set the foundation for a global circular economy. Their technology converts waste into clean energy and fresh water, while permanently removing CO2 from the atmosphere.
Links
Carba
Minneapolis, MN, United StatesPermanently bury nature-based biomass for thousands of years.
Carba specializes in low energy Carbon Dioxide Removal (CDR) solutions with permanent storage. Through low temperature pyrolysis (torrefaction) we convert nature-based biomass/waste into graphitic carbon and permanently bury/store it for thousands of years.
Links
Arca
Vancouver, BC, CanadaTransform CO2 into rocks
We remove excess CO₂ from the atmosphere, and transform it into rocks – naturally storing it for millennia. We can still reverse climate change if we act fast, and develop solutions that scale. For our part, we capture and store CO2 permanently by speeding up the natural process of carbon mineralization. And because our technology uses the waste from critical metal mines, it keeps a light footprint while supporting the clean energy transition.
Carbfix
Reykjavík, IcelandCaptures CO2 and turns it into stone
Carbfix captures CO2 and turns it into stone underground in less than two years through proprietary technology. The company’s mission is to be a key instrument to tackle the climate crisis and substantially reduce global CO2 emissions.
Links
Lithos
Chicago, IL, USAUsing ERW in the American Midwest.
We remove atmospheric carbon for a fraction of the cost while increasing crop yields. Our process is highly efficient, increases soil health, and repurposes post-industrial waste. Then we sell the carbon credits to companies and split revenue with our regenerative growers. With a world-class team leveraging expertise in soil chemistry, agronomy, geochemistry, machine learning, and logistics, we are engineering the most cost-effective, and scientifically rigorous solution to enhanced rock weathering at scale.
Neustark
Berlin, GermanyRecycles concrete, storing carbon along the way.
Switzerland-based Neustark’s technology permanently stores CO2 from the air in recycled mineral waste such as demolished concrete. Its first commercial-scale plant in the EU is located at a construction waste recycling facility on the outskirts of Berlin.
Vesta
Southampton, NY, United StatesCoastline enhanced rock weathering
Vesta’s mission is to further the science of Coastal Carbon Capture and galvanize global deployment. Coastal Carbon Capture harnesses the power of the oceans to accelerate the Earth’s natural long-term carbon dioxide removal process and enhance coastal resilience. Vesta is a Public Benefit Corporation, a mission-driven company dedicated to leaving a world in which all can thrive. Part of the funding for our scientific research is from the Coastal Carbon Capture Impact Fund, a 501(c)(3) public charity.
Links
Vycarb
New York City, NY, United StatesRemoves carbon dioxide from water.
Vycarb’s fully-measured carbon management system performs real-time, autonomous removal, storage, and verification of CO2 in water. With multiple pilots deployed on the US east coast, Vycarb’s modular, autonomous system uses a real-time measurement technology and accelerated alkalinity dissolution to optimize CO2 removal to water’s naturally-changing chemical conditions. Designed for deployment across any high-CO2 waters, Vycarb’s system creates the first fully-measured, ecologically beneficial carbon removal and storage that can be distributed around the world.
Links
Stockholm Exergi
Stockholm Exergi AB, Jägmästargatan, Stockholm, SwedenWhere the next steps to capture carbon dioxide will take place.
Eion
Mississippi, USAworks with American heartland communities to safely and permanently remove CO2.
Links
Equatic
SingaporeSeawater electroysis
Equatic powers the green economy. Our seawater electrolysis couples carbon dioxide removal (CDR) from the atmosphere with the generation of green hydrogen at the lowest costs.
CarbonBlue
Maagan Michael, IsraelA first-of-its-kind pilot of marine calcium looping direct ocean capture integrated with a desalination facility.
The project is a pilot facility that demonstrates CarbonBlue’s water-based calcium looping technology. It is integrated with a brackish water desalination facility in Maagan Michael, Israel. Operation at full capacity of 400 tpy will commence in 2024.
Links
Planteers GmbH
Hamburg, GermanyReactor-based ocean alkalinity enhancement
We exploit CO2 from wastewater treatment facilities, mix it with water and limestone. During the reaction, CO2 is consumed and trapped as alkaline solution. Afterwards, the solution is diluted until it is uncritical for the local aquatic system and discharged into river estuaries or oceans.
Epiphyte
University of Pennsylvania, Philadelphia, PA, USAOpen source direct air capture machines
Links
CarbonBuilt
Childersburg, Alabama, USAWorld’s first ultra-low carbon concrete mineralizes atmospheric carbon
CarbonBuilt produces the world’s first ultra-low carbon concrete blocks. The new blocks reduce embodied carbon by 70-100+% through cement replacement and by mineralizing atmospheric CO2. They cost no more to produce than traditional concrete. More plants are in development.
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Novocarbo
Grevesmühlen, GermanyOne of Germany’s largest carbon removal parks
Novocarbo builds and operates carbon removal parks worldwide, pursuing the goal of removing 1 million tons of CO2 from the atmosphere by 2030. The Carbon Removal Park in the Baltic Sea is our largest site to date and a unique example in Germany of a holistic approach to CO2 removal and green heat generation. We use state-of-the-art pyrolysis technology to process plant residues into biochar.
Minus Materials
Boulder, CO, USAUsing algae to generate carbon negative limestone for cement!
With this breakthrough demonstration project Minus Materials will install and operate a first-of-its-kind “regenerative quarry” pilot project in Boulder County that will support the production of carbon-negative biorenewable limestone using microalgae. Limestone produced can be used as a substitute for conventional emissions intensive ‘clinker’, the base component of Portland cement.
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Climeworks: Orca and Mammoth
Hellisheiði, IcelandThe world’s first commercial Direct Air Capture deployments, paired with subsurface mineral storage.
Climeworks’ Orca is the first operational commercial direct air capture plant in the world, commissioned in 2021. Mammoth, with nearly 4 times the carbon removal capacity, is not far behind, scheduled for completion in 2024. Both plants store CO2 underground in durable mineral form, partnering with CarbFix, a leading Iceland-based innovator in the CO2 mineralization field.
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