Heirloom
Direct air capture startup using limestone to remove CO2 from the atmosphere at scale.
About
Heirloom is a direct air capture (DAC) company that removes CO2 from the atmosphere using crushed limestone, which naturally absorbs carbon dioxide. Unlike liquid-based DAC approaches, Heirloom's mineral-based process is lower-cost and faster to scale. The company operated America's first commercial DAC plant and raised $150M Series B in December 2024 co-led by Future Positive and Lowercarbon Capital. Teams look it up for Climate Tech, Carbon Removal, Direct Air Capture.
Frequently asked
What does Heirloom do?
Heirloom is a Climate Tech company that offers Hardware. Teams look it up for Carbon Removal, Direct Air Capture, Cleantech. It is based in Brisbane, California, United States and was founded in 2020. Public records show about 100 people and $162M raised. Compare it on funding, headcount, reviews and nearby alternatives rather than the marketing line alone.
How much funding has Heirloom raised?
Heirloom has raised a total of $162M in funding. The most recent round on record is Series B.
Where is Heirloom headquartered?
Heirloom is headquartered in Brisbane, California, United States.
When was Heirloom founded?
Heirloom was founded in 2020.
What industry does Heirloom operate in?
Heirloom operates in Climate Tech, Carbon Removal, Direct Air Capture, Cleantech, Carbon Credits.
How many employees does Heirloom have?
Heirloom has approximately 100 people on record.
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