Ranked by total raised · 25 of 40 on the roster
Climeworks builds solid-sorbent direct air capture plants that pull CO2 from the atmosphere and sequester it underground in Iceland.
Twelve electrochemically transforms CO2, water, and renewable electricity into jet fuel and chemicals it calls 'carbon transformation.'
Solid-sorbent filters and modules that capture CO2 from industrial point sources and the air.
22 more companies in this ranking, plus every other sort, every roster row, and the full analytical layer behind each profile.
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Enterprise carbon-accounting and decarbonization platform that measures, reports, and reduces corporate emissions.
Heirloom uses limestone-looping direct air capture to accelerate natural mineralization and deliver permanent, verifiable carbon removal.
Sublime Systems makes low-carbon cement using a room-temperature electrochemical process that replaces the fossil-fueled kiln.
Modular, compact point-source carbon capture (CycloneCC) for cement, steel, and other heavy industry.
AI-powered carbon-management and climate-disclosure SaaS platform for companies and financial institutions.
Fortera mineralizes captured CO2 into a low-carbon 'ReAct' green cement at existing cement plants.
Modular, renewable-powered carbon capture machines built around inexpensive zeolite sorbents.
Project Canary provides continuous methane monitoring, emissions analytics, and independent certification for the energy value chain.
Converts waste biomass into a stable bio-oil that is injected into geologic storage for permanent carbon removal.
Independent carbon-credit ratings agency providing risk analytics across the voluntary and compliance carbon markets.
Jupiter Intelligence delivers AI-powered physical climate-risk analytics for flood, heat, wind, and wildfire exposure.
Carbon-credit quality ratings and climate-intelligence platform built on satellite data and machine learning.
API-first marketplace and infrastructure for buying, embedding, and retiring carbon credits.
Avnos builds Hybrid Direct Air Capture systems that pull CO2 and clean water from the air without thermal regeneration.
Brimstone makes ordinary portland cement from carbon-free calcium silicate rock via a process it describes as carbon-negative.
Injects captured CO2 into fresh concrete, where it mineralizes permanently and strengthens the mix.
Infinium makes power-to-liquids e-fuels — eSAF and eDiesel — from waste CO2 and green hydrogen.
Removes CO2 by spreading crushed basalt on croplands, paired with soil-based measurement and verification.
Spiritus is a Los Alamos spinout pursuing passive, low-energy direct air capture using a lung-like sorbent arranged in a 'Carbon Orchard.'
Andium uses edge-AI computer vision to monitor methane flaring, leaks, and equipment faults at oil and gas sites.
Electrochemical ocean alkalinity enhancement that splits seawater to remove CO2 and reduce ocean acidity.
Direct Ocean Capture using electrodialysis to pull CO2 from seawater so the ocean reabsorbs it from the air.