Restoring balance to our atmosphere

Removing billions of tons of CO2 from the atmosphere using the world's most cost-effective Direct Air Capture technology that harnesses the natural powers of limestone.
mineral texture

Our Philosophy

Our planet
knows best

Rocks are some of the planet's most vital carbon sinks. Over geological timescales, CO2 from the atmosphere binds to minerals and permanently turns to rock – a process known as carbon mineralization.
Limestone is one of the most abundant rocks on the planet, capturing massive amounts of CO2 from the air over years. Heirloom’s technology accelerates this natural process to just days.
We’ve combined the best of engineering and nature, to develop the most affordable and scalable Direct Air Capture technology in the world. We offer the highest quality carbon removal credits available for purchase today.
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Our Facility

The first commercial Direct Air Capture facility in the United States

Heirloom is operating the first DAC facility in the United States to permanently remove CO2 from the atmosphere, fulfilling customer carbon removal purchases in Tracy, California. The facility is fully powered by renewable energy, constructed with local union labor, and built in partnership with the City of Tracy and will pioneer a community governance model in the year ahead.

We are actively capturing atmospheric CO2, which is permanently sequestered in concrete through a partnership with CarbonCure Technologies.
photo of facility from air
photo of facility from air

A CO2 removal facility that is rapidly and principally deployed

Our first commercial facility demonstrates our rapid technology and business progress since our founding in 2020. We are operating this facility consistent with our recently-outlined principles for the responsible deployment of carbon removal.

Our customers

Partners on the path to a carbon negative future

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Stripe Logo
Wise Logo
Microsoft Logo
Klarna Logo
Shopify Logo
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Stripe Logo
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Klarna Logo
Shopify Logo
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Our approach

The highest-quality carbon removal credits

1.

Permanent removal of CO2

Our CO2 is permanently and safely stored underground, or in building materials like concrete.

2.

Minimal environmental footprint

Our facilities can remove 50 tons of CO2 per square meter and can be sited on non-arable land.

3.

Creating high-paying green jobs

We will site our facilities in fossil energy communities, providing high-paying jobs and driving investment in education and reskilling in a future-proof industry.

4.

Designed for affordability

Our carbon removal credits will cost less than $100 per ton of CO2 by 2035.
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Contact Us

Help restore balance to the atmosphere

Permanently remove CO2 from the atmosphere by purchasing our removal credits.