Who are the leading direct air capture companies?

Occidental Petroleum (1PointFive) (United States), Carbon Engineering (Canada), Climeworks (Switzerland), Heirloom Carbon Technologies (United States), Deep Sky (Canada), Svante (Canada).

Which direct air capture companies are publicly traded?

Occidental Petroleum (1PointFive) (OXY).

Which Canadian companies are in direct air capture?

Carbon Engineering, Squamish; Deep Sky, Montreal; Svante, Burnaby.

How big is the carbon capture market?

For the whole carbon capture market, not this segment alone: operating CO₂ capture capacity (world) 68 Mt CO₂ per year (Mtpa), 2026 — Global CCS Institute.

Direct air capture

Machines that pull CO₂ from ambient air for storage; costly but eligible for the highest credits ($180/t under 45Q, 60% ITC in Canada)

6 leading companies in direct air capture, one segment of carbon capture — Capturing CO₂ from smokestacks and the air, then storing or using it — 68 Mtpa operating worldwide, subsidy-led

new market segment · researched 2026-11-14

Point-source carbon capture CO₂ transport & storageDirect air captureCO₂ utilisation Carbon-removal credits

Leading direct air capture companies

6 companies, with the scale each source states. Scale is the whole company's unless the row says otherwise.

Company	Where	What they do	Scale
Occidental Petroleum (1PointFive) OXY ↗	Houston, United States	Through its subsidiary 1PointFive, builds STRATOS, a direct air capture plant in Ector County, Texas, and sells its carbon-removal credits to buyers including Microsoft and Amazon	design capture capacity (STRATOS): 500,000 tonnes CO₂ per year (2026) ↗
Carbon Engineering ↗	Squamish, Canada since 2009	Direct air capture technology developer, licensed to 1PointFive; acquired by Occidental	acquisition price: 1.1 USD billions (Aug 2023) (2023) ↗
Climeworks ↗	Zürich, Switzerland since 2009	Runs direct air capture plants (Orca, Mammoth in Iceland) and sells removal credits to buyers such as British Airways and Morgan Stanley; partner in the Project Cypress DAC hub in Louisiana	Mammoth plant capacity: 36,000 tonnes CO₂ per year (up to) (2024) ↗
Heirloom Carbon Technologies ↗	United States since 2020	Limestone-based direct air capture; Tracy, California plant opened Nov 2023; Microsoft offtake for up to 315,000 t	Tracy plant design capacity: 1,000 tonnes CO₂ per year (2023) ↗
Deep Sky ↗	Montreal, Canada	Carbon-removal project developer; its Deep Sky Alpha test centre in Alberta is described as North America's first facility capturing CO₂ directly from air, and it plans Deep Sky One DAC	—
Svante ↗	Burnaby, Canada since 2007	Makes solid-sorbent filters and rotary contactor machines that capture CO₂ from industrial exhaust and from air (formerly Inventys)	Series E financing led by Chevron New Energies: 318 USD millions (the same page also gives US$270M) (2022) ↗

The carbon capture market

The whole market this segment sits in.

operating CO₂ capture capacity · world68

Mt CO₂ per year (Mtpa) · 2026

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Growth, segments, risks and every company in carbon capture →

Quick answers

What is direct air capture?: Machines that pull CO₂ from ambient air for storage; costly but eligible for the highest credits ($180/t under 45Q, 60% ITC in Canada). It is one segment of the carbon capture market.
Who are the leading direct air capture companies?: Occidental Petroleum (1PointFive) (United States), Carbon Engineering (Canada), Climeworks (Switzerland), Heirloom Carbon Technologies (United States), Deep Sky (Canada), Svante (Canada).
Which direct air capture companies are publicly traded?: Occidental Petroleum (1PointFive) (OXY).
Which Canadian companies are in direct air capture?: Carbon Engineering, Squamish; Deep Sky, Montreal; Svante, Burnaby.
How big is the carbon capture market?: For the whole carbon capture market, not this segment alone: operating CO₂ capture capacity (world) 68 Mt CO₂ per year (Mtpa), 2026 — Global CCS Institute.