Latest Heirloom News & Updates

See the latest news and media coverage for Heirloom. We track all announcements, press releases, and industry mentions in real time, all in one place.

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Heirloom

Direct air capture carbon removal developer

heirloomcarbon.com
Headquarters
San Francisco, United States
Founded year
2020
Company type
Private company
Number of employees
150–200

Last updated

Latest news about Heirloom

In short: Heirloom expanded its Direct Air Capture operations through a $150 million Series B round, major Microsoft contracts, and new Louisiana facilities.

Company announcements

Heirloom

Heirloom closes $150 million Series B

The round was co-led by Future Positive and Lowercarbon Capital, with strategic investors including Japan Airlines, Mitsubishi Corporation, Mitsui, MOL Switch, Quantum Innovation Fund, and Siemens Financial Services.

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Media coverage

Yahoo Finance

Development Bank of Japan and Chiyoda Invest in Heirloom

BRISBANE, Calif., December 02, 2025--Heirloom, America's leading Direct Air Capture (DAC) technology provider, today announced investments...

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