List of carbon removal orgs that are hiring
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Name
Pathway
Direct air capture
Count12
1
CarbonCapture Inc.
2
Heirloom
3
Carbon Atlantis
4
Holocene
5
Carbon To Stone
6
RepAir
7
CarbonFree
8
Carbon Engineering
9
Aker Carbon Capture
10
Carbon Clean
11
Climeworks
12
Svante
13
Lithos
14
Alkali Earth
15
EDAC Labs
16
Arca
17
CREW
18
Inplanet
19
Travertine
20
Banyu Carbon
21
CarbonBlue
22
Captura
23
Planetary
24
Vaulted Deep
25
Charm Industrial
26
Arbor
27
Kodama
28
Living Carbon
29
LanzaTech
30
Pachama
31
Supercritical
32
Cella
33
Nitricity
34
CarbFix
Pathway
Enhanced weathering
Count7
Pathway
Direct ocean removal
Count3
Pathway
Ocean alkalinity enhancement
Count1
Pathway
Biomass carbon removal and storage
Count6
Pathway
Industry Infrastructure
Count2
Pathway
Storage only
Count3
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CarbonCapture’s direct air capture machines use solid sorbents that soak up atmospheric CO₂ and release concentrated CO₂ when heated. CarbonCapture’s core innovation is making the capture system modular and upgradeable so that they can swap in best-in-class sorbents as they become available. The captured CO₂ stream is then stored permanently underground.

Los Angeles, CA, US

Frontier climate portfolio

Over geologic timescales, CO₂ chemically binds to minerals and permanently turns to stone. Heirloom is building a direct air capture solution that accelerates this process to absorb CO₂ from the ambient air in days rather than years, and then extracts the CO₂ to be stored permanently underground.

Brisbane, CA, US

Frontier climate portfolio

Carbon Atlantis is using a process known as electrochemical pH-swing. Their system uses a solvent to capture CO₂ and an acid to release it. This approach is inspired by recent innovation in Proton Exchange Membrane fuel cells and electrolyzers. Their cell architecture is designed to allow for industrial-sized stacks, and the components of this modular system are readily available and industry-proven, making the process cost-effective and energy-efficient. The CO₂ is then run through Paebbl's mineralization process for permanent storage in construction materials.

Munich, Germany

Frontier climate portfolio

Holocene captures CO₂ from air using organic molecules that can be produced at low cost. In the first step of their process, CO₂ is captured from air when it comes into contact with a liquid solution. In the second step, a chemical reaction crystallizes the material as a solid. That solid is heated up to release the CO₂, minimizing energy wasted in heating water. Their process runs at lower temperatures, further reducing the energy required and increasing energy flexibility.

Knoxville, TN, US

Frontier climate portfolio

Carbon To Stone is developing a new form of direct air capture, in which a solvent that binds CO₂ is regenerated by reacting with alkaline waste materials. By replacing conventional solvent regeneration using heat or pressure changes with direct mineralization of low-cost alkaline wastes such as steel slag, the team can significantly reduce the energy, and thus the cost, required. The CO₂ is durably stored as solid carbonate materials that can be used for alternative cements.

Ithaca, NY, US

Frontier climate portfolio

RepAir uses clean electricity to capture CO₂ from the air using a novel electrochemical cell and partners with Carbfix to inject and mineralize the CO₂ underground. The demonstrated energy efficiency of RepAir’s capture step is already notable and continues to advance. This approach has the potential to deliver low-cost carbon removal that minimizes added strain to the electric grid.

Tel Aviv, Israel

Frontier climate portfolio

CarbonFree employs patented technologies to capture carbon dioxide emissions from stationary point source emitters and convert them into carbon-negative chemicals.

San Antonio, TX, US

Energy Digital leading Carbon Capture companies list

Carbon Engineering are focused on the development of megatonne-scale Direct Air Capture technology (compressing CO₂ from the atmosphere to be ready for use or storage).

Vancouver, Canada

Energy Digital leading Carbon Capture companies list

Aker Carbon Capture use a proprietary process where water and organic amine solvents absorb CO₂ from emissions from various sources - this includes gas, coal, cement, refineries, and waste-to-energy through to hydrogen and other process industries.

Oslo, Norway

Energy Digital leading Carbon Capture companies list

Carbon Clean, based in London, specialises in advanced carbon capture, utilization, and storage technologies for industries like steel, cement, and energy from waste, aiming to capture over 90% of CO₂ emissions.

London, UK

Energy Digital leading Carbon Capture companies list

Climeworks is a leading Direct Air Capture company that collects CO₂ from the surrounding air through a two-step process of drawing air into a “collector” using large fans and filtering it to capture CO₂. After the CO₂ is collected with the filters, the company heats the collector container, releasing the CO₂ and enabling capture.

Zurich, Switzerland

Energy Digital leading Carbon Capture companies list

Svante manufactures solid filters and machines that capture CO2 from industrial emissions and the air. They use metal organic framework (MOF) sorbents that can capture up to 95% of carbon dioxide (CO2) emitted from industrial sources.

Burnaby, British Columbia

Sourced by 80k team

Lithos accelerates the natural ability of rocks to absorb CO₂ by spreading superfine crushed basalt on farmlands and measuring the removal empirically. They’re pioneering a novel measurement technique that more accurately quantifies the carbon permanently removed from enhanced weathering.

San Francisco, CA, US

Frontier climate portfolio

Alkali Earth uses alkaline byproducts, like steel slag, as gravel aggregates for building road surfaces. The calcium- and magnesium-rich minerals in the gravel react with atmospheric CO₂ to form stable carbonates, storing it permanently while cementing the road surfaces. Spreading the gravel across roads increases the surface area exposed to CO₂ and leverages road traffic to agitate the gravel further, accelerating CO₂ uptake.

Northfield, MN, US

Frontier climate portfolio

EDAC Labs uses an electrochemical process to produce acid and base. The acid is used to start the recovery of valuable metals from mining waste, and the base is used to capture CO₂ from air. The acid and base streams are then combined to produce metals that can be sold for applications such as batteries, and solid carbonates which permanently store CO₂. The EDAC Labs process is energy efficient, uses abundant mine wastes, and produces valuable revenue-generating co-products.

Baltimore, MD, US

Frontier climate portfolio

Arca is capturing CO₂ from the atmosphere and mineralizing it into rock. They work with producers of critical metals, transforming mine waste into a massive carbon sink. With autonomous rovers, their approach accelerates carbon mineralization, a natural process storing CO₂ permanently as new carbonate minerals. By creating a system that works directly at the mine site, Arca avoids the cost and emissions of moving material to processing facilities.

Vancouver, Canada

Frontier climate portfolio

CREW is building specialized reactors to enhance natural weathering. The container-based system creates optimized conditions to speed up the weathering of alkaline minerals, and the discharged water stores CO₂ from wastewater safely and permanently as bicarbonate ions in the ocean. CREW’s system makes measuring CO₂ removed easier and can react with CO₂ from a variety of sources, including direct air capture and biomass systems, to maximize scale.

New Haven, CT, US

Frontier climate portfolio

Inplanet accelerates natural mineral weathering to permanently sequester CO₂ and regenerate tropical soils. They partner with farmers to apply safe silicate rock powders under warmer and wetter conditions that can result in faster weathering rates and thus faster CO₂ drawdown. The team is developing monitoring stations to generate public field trial data to improve the field’s understanding of how weathering rates vary under tropical soil and weather conditions across Brazil.

Piracicaba, Brazil and Munich, Germany

Frontier climate portfolio

Travertine is re-engineering chemical production for carbon removal. Using electrochemistry, Travertine produces sulfuric acid to accelerate the weathering of ultramafic mine tailings, releasing reactive elements that convert carbon dioxide from the air into carbonate minerals that are stable on geologic timescales. Their process turns mining waste into a source of carbon removal as well as raw materials for other clean transition technologies such as batteries.

Boulder, CO, US

Frontier climate portfolio

Banyu uses sunlight to capture CO₂ from seawater and store it permanently. A reusable, light-activated molecule that becomes acidic when exposed to light causes carbon dissolved in seawater to degas as CO₂, which is then compressed for storage. Because only a small portion of the visible light spectrum is needed to trigger the reaction and the light-activated molecule can be reused thousands of times, this is a highly energy-efficient approach to direct ocean removal.

Seattle, WA, US

Frontier climate portfolio

CarbonBlue has developed a calcium looping process to remove CO₂ from seawater or freshwater. Their novel mineralization, dissolution and brine hydrolysis regeneration releases CO₂ captured from water without needing any external feedstock of minerals or chemicals. The reactors are highly energy efficient and require a low enough regeneration temperature to enable utilization of waste heat.

Haifa, Israel

Frontier climate portfolio

Captura is harnessing the ocean for scalable removal by designing an electrochemical process to separate acid and base from seawater. The acid is used to remove CO₂ that’s present in seawater, which is injected for permanent geologic storage. The base is used to treat and return the remaining water safely to the ocean, and the ocean then draws down further CO₂ from the atmosphere. Captura is developing optimized membranes to increase electrical efficiency and reduce removal costs.

Pasadena, CA, US

Frontier climate portfolio

Planetary harnesses the ocean for scalable removal. They introduce alkaline materials to existing ocean outfalls like wastewater plants and power station cooling loops. This speeds up the sequestration of CO₂ safely and permanently as bicarbonate ions in the ocean. Planetary then verifies the removal through advanced measurement and modeling techniques.

Nova Scotia, Canada

Frontier climate portfolio

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.

Houston, TX, US

Frontier climate portfolio

Charm Industrial has created a novel process for preparing and injecting bio-oil into geologic storage. Bio-oil is produced from biomass and maintains much of the carbon that was captured naturally by the plants. By injecting it into secure geologic storage, they’re making the carbon storage permanent.

San Francisco, CA, US

Frontier climate portfolio

Arbor is developing a modular, compact approach to Biomass Carbon Removal and Storage (BiCRS), the process of removing carbon by converting biomass waste to products such as electricity and permanently storing the CO₂ underground. Their technology combines a gasifier that can work flexibly across biomass types with an advanced turbine that maximizes electrical efficiency. Arbor’s modular system can be quickly deployed and is designed to be manufactured at substantially lower costs.

Los Angeles, CA, US

Frontier climate portfolio

Kodama Systems and the Yale Carbon Containment Lab are deploying a proof-of-concept method of storing waste woody biomass by burying it in anoxic chambers underground, preventing decomposition. The team will experiment with how chamber conditions and above-ground disturbances impact durability and reversal risk.

Sonora, CA, US

Frontier climate portfolio

Living Carbon wants to engineer algae to rapidly produce sporopollenin, a highly durable biopolymer which can then be dried, harvested and stored. Initial research aims to better understand the field’s thinking on the durability of sporopollenin as well as the optimal algae strain to quickly produce it. Applying synthetic biology tools to engineer natural systems for improved and durable carbon capture has the potential to be a low-cost and scalable removal pathway.

San Francisco, CA, US

Frontier climate portfolio

LanzaTech is a carbon refining company that converts waste carbon into sustainable fuels, fabrics, and packaging materials. They process various waste feedstocks, including industrial gases and municipal solid waste, to serve industries like aviation, automotive, and textiles, with operations spanning across China, India, the UK, and the Netherlands.

Skokie, Illinois

Energy Digital leading Carbon Capture companies list

Pachama trains machine learning models using satellite imagery, Lidar, radar and field plots to estimate the carbon stored in forests today and into the future. Using satellite data to compare nearby areas, Pachama observes what would have happened without a carbon project.

San Francisco, CA, US

Sourced by 80k team

Supercritical helps businesses get to net zero and to scale carbon removal technologies by building software to enable them to understand their climate impact and purchase high quality carbon removal offsets.

London, UK

Sourced by 80k team

Cella increases the options for safe and secure carbon storage via mineralization. They accelerate the natural process that converts CO₂ into solid mineral form by injecting it into volcanic rock formations together with saline water and geothermal brine waste, with an approach that lowers cost and minimizes environmental impacts. Cella’s technology integrates low-carbon geothermal heat and can be paired with a variety of capture methods.

New York, US and Nairobi, Kenya

Frontier climate portfolio

Nitricity is exploring the potential of integrating carbon removal into a novel process for the electrified production of clean fertilizer. This process combines carbon-neutral nitrogen compounds, phosphate rock and CO₂, producing nitrophosphates for the fertilizer industry and storing CO₂ durably as limestone. This new pathway could present a low-cost storage solution for dilute CO₂ streams with co-benefits of decarbonizing the fertilizer industry.

Fremont, CA, US

Frontier climate portfolio

Carbfix is an Icelandic company that specialises in carbon capture and storage (CCS) technology. They sequester CO₂ by by injecting it into basaltic rock formations deep beneath the Earth's surface.

Reykjavik, Iceland

Energy Digital leading Carbon Capture companies list

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