Climeworks
Orca + Mammoth DAC plants in Iceland
Carbon Removal & Climate Tech
Removing carbon at gigaton scale — direct air capture, ocean alkalinity, biomass burial, and mineralization.
26 companies · 6 segments
Direct Air Capture (DAC)
1PointFive (Oxy)
Stratos DAC megaproject in Texas
Carbon Engineering (Oxy)
Liquid-solvent DAC technology provider
Heirloom
Limestone-based DAC (CA-funded)
Avnos
Hybrid DAC with water co-production
CarbonCapture Inc.
Modular DAC machines
Biomass & Biochar Removal
Charm Industrial
Bio-oil sequestration in oil wells
Graphyte
Compressed biomass carbon casts
Vaulted Deep
Slurry injection of organic waste
Pachama
Forest-carbon verification via remote sensing
Ocean & Mineralization
Equatic
Electrochemical ocean CO₂ removal
Planetary Tech
Ocean alkalinity enhancement
Ebb Carbon
Electrochemical seawater capture
Heimdal
Mineralization via seawater electrolysis
44.01
Peridotite mineralization in Oman
Industrial Decarbonization
Boston Metal
Molten oxide electrolysis green steel
H2 Green Steel / Stegra
European green-steel gigascale
Sublime Systems
Electrochemical cement
Brimstone
Carbon-negative Portland cement
E-Fuels & CO₂ Utilization
Twelve
CO₂ → e-fuels & chemicals
LanzaJet
Sustainable aviation fuel from ethanol
Prometheus Fuels
Electrofuels via electrolysis
Carbon Markets & MRV
Frontier (Stripe)
$1B advance-market commitment for CDR
Sylvera
Carbon-credit rating & verification
Patch
Carbon credit marketplace for businesses
CarbonPlan
Open-source CDR analysis (nonprofit)