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 carbon removal operations through strategic Japanese investments, federal funding for Louisiana hubs, and a major Series B.

Company announcements

  • Heirloom

    Heirloom receives investments from Development Bank of Japan and Chiyoda

    These investments strengthen partnerships to scale low-cost Direct Air Capture for permanent carbon removal and low-carbon fuels. They build on commitments from Mitsubishi, Mitsui, MOL Switch, and Japan Airlines.

  • Heirloom

    Heirloom celebrates California reauthorizing its Cap-and-Invest Program

    The legislature passed SB 840 and AB 1207 to extend the program, create a climate technology capital fund, and integrate durable removals into carbon markets.

  • Heirloom

    Heirloom partners with United Sustainable Flight Fund

    The Fund can purchase up to 500,000 tons of CDR for sustainable aviation fuel or permanent storage, and also made an equity investment in Heirloom.

  • 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

  • ANTARA News

    Jakarta Governor inaugurates Heirloom Flag Park with Fatmawati Statue - ANTARA News

    Jakarta Governor Pramono Anung Wibowo inaugurated the Heirloom Flag Park, a single complex integrating Ayodya, Langsat, and Leuser Parks, in South Jakarta on ...

  • Louisiana Tech University

    Heirloom named 2025 Top Dog at New Venture Championship

    Heirloom took home first place in the 2025 Top Dog New Venture Championship, Louisiana Tech University's premier entrepreneurial pitch competition and one of the oldest...

  • 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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