HCHC
Heirloom
Permanent carbon removal at the lowest cost
AISeries BEst. 202050-200 employeesSan Francisco
Heirloom accelerates the natural process of rock weathering — using crushed limestone to pull CO₂ from the atmosphere. Their approach achieves durable carbon removal at a fraction of the cost of other methods, with the first commercial facility operational in California.
Total Raised$150M
MicrosoftCarbon DirectBreakthrough Energy Ventures
Founders
S
Shashank SamalaN
Noah McQueen
