Announcing the Kiloton Fund Teams

Airhive is a London-based direct air capture developer building a technology based on the fluidisation of natural minerals. An XPRIZE finalist, Airhive is commissioning a kiloton-scale pilot in Q4 2024 and working towards its first commercial facility in 2025.

Alkali Earth delivers permanent carbon dioxide removal using steel slag, an industrial byproduct, as a gravel substitute. Our passive, low-energy approach accelerates natural geochemical reactions and improves rural infrastructure.

BIOSORRA champions climate justice by revitalizing tropical farming soils, using durable biochar carbon removal to sustainably boost farmers' yields while balancing carbon on the planet

Carbon Limit created a cement technology that gives concrete the ability to capture, utilize, and store atmospheric CO2 into concrete permanently, and continues to create and commercialize solutions to combat global warming.

Carbon Lock Tech is a Canadian cleantech company focused on developing sustainable and scalable technologies for removing carbon dioxide from the atmosphere and permanently sequestering it. Their solution involves converting biomass into a stable form of biocarbon, which can then be “locked” in a variety of applications including sustainable agriculture, low-carbon construction, green infrastructure and advanced materials and manufactured goods.

Gaia Refinery is building a hybrid Biomass with Carbon Removal and Storage + direct air capture combination that captures CO2 from atmospheric and biogenic sources.

Heimdal builds direct air capture facilities. Our patent pending sorbent recycling technique enables a radically simple engineered direct air capture system at the lowest cost per ton on the market. They completed their first commercial system, Bantam, the largest DAC facility in America, actively capturing more than 5,000 tCO2 per year.

HyveGeo greens the desert and permanently removes CO2 using Biochar and Microalgae. Our end-to-end biorefinery and pyrolysis process delivers a solution for both climate change and food security in arid desert environments.

Lillianah removes unwanted pollutants and nutrients human introduce to waterways via our biofiltration process in which they disperse healthy, native diatoms. The biomass that results from higher diatom activity yields carbon-rich sediments that get deposited at the bottom of our ocean which yield permanent carbon removal.

Octavia Carbon is the Global South’s first Direct Air Capture company. They aim to leverage Kenya’s geothermal energy, geology, and talent to radically accelerate DAC down the cost curve and make Kenya the world’s cost-effective hub to build and deploy DAC machines by 2025.

Phlair is revolutionizing carbon removal with its Hydrolyzed-based Direct Air Capture (DAC) technology, enabling scalable and low-costCO₂ capture from ambient air. Phlair uses a process known as electrochemical pH-swing. Their system uses a solvent to capture CO₂ and an acid to release it. The CO₂ is permanently sequestered for storage.

Planeteers is a climate-tech startup from Hamburg that aims to capture CO2 in water by accelerating the natural process of limestone weathering. Through dramatically speeding up this reaction, which normally takes thousands of years in nature, their technology can neutralize large amounts of CO2 within minutes, unleashing the potential of the oceans as the largest carbon sink on our planet.

RubisCO2 cleans invasive Sargassum seasweed off beaches and transforms it into biochar and building materials.

Samudra Oceans, an Earthshot Nominee and Pierre Cardin Ocean&Space 2024 Top 4, is making ocean farming possible at planetary scale. Their main goal is to take out 1 gigatonne of carbon from the atmosphere by 2033 and produce 10,000 jobs in coastal towns by scaling aquaculture and blue farming.

Scaled Carbon accelerates oceanic enhanced weathering by grinding rocks into sand, adding the sand to the ocean, and monitoring the process to verify the resulting carbon removal.

Scape develops modular reactors that use natural carbon-removing minerals & seawater to sequester captured CO2 while recovering carbon-negative critical metals. Scape offers a simpler, cheaper coastal CO2 storage than offshore injection and fills the growing 40% gap between carbon capture development & carbon storage capacity.

SeaGen builds robots to understand and solve problems in water spaces. Our AlgaRay is a cleanup and sinking device for invasive seaweeds, removing the carbon captured by the seaweed by locking it away in the deep ocean.

Sinkco Labs is developing a scalable and cost-effective solution for permanently storing organic carbon in marine sediments, ensuring safe and verifiable carbon removal.

Sirona is a direct air capture company with a mission of building modular units with relatively simple technology - their prototype can already capture 50kg CO2/day and they are now deploying a pilot plant in Kenya.

Takachar develops small-scale, low-cost, portable systems latched onto the back of tractors and pick-up trucks, that can deploy to remote, hard-to-access communities to locally upgrade the non-merchantable residues into higher-value, carbon-based bioproducts.