Startup Portfolio | Negative Emissions

Airhive

Building a direct air capture (DAC) technology that combines the proven industrial process of fluidization with a novel geochemical sorbent, delivering accelerated CO2 removal and providing a rapid path to scaling.

Alithic

Creating a low-carbon cement replacement solution that simultaneously removes CO2 from the atmosphere.

Brineworks

Advancing the state-of-the-art in saltwater electrolysis technology, which unlocks several ocean-based carbon dioxide removal pathways that can scale to Gt/year levels.

Capture6

Affordably removing carbon from the atmosphere using renewable energy while increasing clean water supply.

Cella

Expanding the range of geologies suitable for carbon removal and making carbon mineralization–the natural process for turning carbon into rock–into the most efficient way to permanently remove CO2.

CNS INT

Harnessing the power of cultivated algae for biological carbon fixation and utilization.

EDAC Labs

Developing a new class of electrochemistry systems that provide low-energy synthesis of acid and base for decarbonization applications.

Great Carbon Valley

Working to harness Kenya’s abundant resources towards global decarbonization efforts by seeding, planning, and executing large-scale CO2 removal and green industry projects.

Greenlyte Carbon Technologies

Developing a low-energy direct air capture process that captures CO2 from the air, while producing hydrogen as a by-product.

RepAir

Developing a novel electrochemical cell that separates CO2 from the air in a highly efficient and cost-effective process that operates at ambient temperature solely by renewable electricity.

Rewind

Enabling a nature-based, permanent carbon removal solution that is affordable and scalable within this decade.

Scape

Offering a marine CO2 storage alternative; a costal seawater reactor that can permanently sequester low-purity CO2, saving up to 50% of carbon capture costs while recovering critical metals.

Travertine

Recycling waste from mining and fertilizer production for permanent carbon dioxide removal and chemical production.

TrelliSense

Deploying novel methane emissions sensors that are continuous, long-range, modular and low-cost to help detect, locate and quantify methane leaks for landfills, utilities, farms, industrial facilities, and the full oil & gas supply chain.

Ucaneo

Removing CO2 from ambient air at low CO2 concentrations in a scalable manner.

Startup Portfolio: Negative Emissions

Climate Technology Startups

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