Carbon Removal

Incentive competitions for breakthroughs

Carbon removal using alkaline minerals.

Mineralization company turning mine tailings into permanent CO2 storage.

Modular, solar-powered direct air capture technology.

Hybrid direct air capture that transforms waste heat into carbon removal and water.

Sunlight-driven capture of CO2 directly from seawater.

Direct ocean capture of CO2 via electrodialysis.

Electrochemical direct air capture integrated with water recovery.

In-situ CO2 mineralization in basalt (Iceland).

Modular, scalable direct air capture technology using solid sorbents.

Biochar carbon removal supplier.

Piloting ocean biomass sinking for carbon removal.

River alkalinity enhancement with crushed limestone.

Low-cost, mass-scale direct air capture.

In-situ CO2 mineral storage developer in Kenya.

Converts crop and forest waste into bio-oil injected deep underground for permanent carbon removal.

Direct air capture developer and operator selling durable carbon removal.

Carbon capture at pulp and paper mills for biogenic carbon removal (BECCS).

Wastewater alkalinity enhancement for permanent CO2 removal.

Technology-agnostic carbon removal project developer.

Electrochemical ocean alkalinity enhancement using desalination brine.

Electrochemical platform for carbon mineralization, DAC and ocean alkalinity.

Seawater electrolysis that removes atmospheric CO2 while producing hydrogen.

Bolivia-based biochar producer, the largest biochar carbon removal supplier by volume.

Turns mining waste into CO2 sequestration and critical minerals.

Kenya-based enhanced rock weathering company scaling carbon removal across Africa.

Pods that sink microalgae-captured carbon to the deep ocean.

Carbon Casting: dried, compacted biomass blocks stored for durable carbon removal.

Direct air capture using accelerated limestone mineralization.

Brazil-focused enhanced rock weathering, first to issue independently verified ERW credits.

Passive-aeration carbon mineralization.

Forestry technology company developing remote and autonomous systems for hazardous fuel reduction and forest restoration.

US biochar company with a large Microsoft carbon removal offtake.

Converts lime and CO2 into calcium bicarbonate stored in seawater.

Enhanced rock weathering on US farmland with registry-certified carbon removal credits.

Basalt enhanced rock weathering for smallholder farmers; $50M XPRIZE Carbon Removal winner.

Efficient electrochemical technology to recover CO2 from the atmosphere.

Biochar from agricultural waste in Africa and Latin America; XPRIZE Carbon Removal runner-up.

Mineralizes CO2 into recycled demolition concrete for permanent storage.

Biowaste carbon removal company with a $44.2M Frontier offtake.

Accelerated carbonation mineralizing CO2 into waste-derived construction aggregate.

Geothermal-powered direct air capture developer in Kenya.

Oregon biochar producer (CharDirect brand) selling verified carbon removal credits.

Direct air capture powered by limestone, designed for scale.

California biochar producer selling verified biochar carbon removal credits.

Mineralizes captured CO2 as calcium bicarbonate in seawater.

Low-cost direct air capture compatible with renewable electricity.

Bamboo biochar carbon removal in the tropics with in-house MRV.

Accelerated mineral weathering in closed-loop reactors producing stable bicarbonate.

Ocean alkalinity enhancement on industrial coastal return flows.

Direct air capture developer (Norway) scaling durable carbon removal.

Electrochemical direct air capture (Israel).

Captures CO2 from biogas power plants for permanent carbon removal.

Sinks plant biomass into the anoxic Black Sea for permanent carbon removal.

Intercepts and stores Sargassum seaweed at sea for carbon removal.

Enhanced weathering carbon removal in Latin America using volcanic rock on farms.

Direct air capture technology developer (Netherlands).

Energy-efficient direct air capture technology.

Affordable, scalable direct air capture powered by renewable energy.

Portable devices converting crop and forest waste into biochar.

Large-scale enhanced rock weathering project developer.

Electrochemical weathering converting mine waste and CO2 into minerals.

Enhanced rock weathering project developer aiming to remove a billion tonnes of CO2.

Asia's largest carbon project developer.

Injects biomass waste slurries deep underground for permanent carbon removal.

Electricity-only carbon capture from air and point sources using electro-swing adsorption.

Coastal enhanced weathering with olivine sand for ocean-based carbon removal.

US biochar producer selling verified biochar carbon removal credits.

BECCS power generation delivering clean power and permanent carbon removal.

Electrified lime production from waste feedstocks.

Enhanced weathering on US farmland with direct soil measurement, now part of Terradot.

Low-cost direct air capture startup, now part of Occidental.

Reforestation and land-restoration company.

On-farm, low-carbon nitrogen fertilizer production.

All-electric direct air capture using cooling tower infrastructure.

Former ocean biomass-sinking carbon removal startup; shut down in 2024.

Electric arc calciner for cement and lime with CO2 capture.

Advocacy organization positioning Kenya as a leader in equitable carbon dioxide removal.

Nonprofit advancing MRV and field science for enhanced weathering and ocean CDR.

Coalition of companies and organizations advancing direct air capture.

Global nonprofit for biochar as a climate and soil solution.

Volunteer-led global network accelerating carbon removal.

Scientific consulting and modeling for the marine CDR industry.

Nonprofit pursuing ocean-based climate solutions, including marine carbon removal.

Decarbonization and carbon management advisory (formerly Carbon Direct).

Carbon removal marketplace and trust infrastructure.

Market data and leaderboards for durable carbon removal.

Carbon removal portfolio manager and procurement service.

Advance market commitment to buy permanent carbon removal.

Carbon removal registry and certification standard.

EU platform driving carbon dioxide removal policy action.

Buyers facility purchasing high-quality durable carbon removal.

Carbon removal standard and registry (Puro Standard, CORCs).

Carbon removal crediting standard (formerly Riverse).

Carbon removal marketplace and procurement platform.

Occidental's direct air capture and carbon sequestration business, home of the Stratos DAC facility.

Carbon credit ratings agency.

Independent carbon credit ratings.

Direct air capture technology developer, owned by Occidental.

Organizer of the Carbon Unbound CDR summit series.

UK biomass power company pursuing a BECCS retrofit.

Oslo waste-to-energy operator deploying carbon capture.

Calcination technology capturing CO2 from cement and lime production, developed by Calix.

Carbon credit marketplace and procurement platform.

Carbon credit marketplace.

Stockholm district-heating utility building a large BECCS facility.

Ratings and market intelligence for carbon credits.