Heirloom Carbon
Direct air capture carbon removal using limestone mineralization, selling verified permanent CO2 removal credits
Highlights
- New on EvolcAdded 2026-11-11
About Heirloom Carbon
Heirloom Carbon Technologies removes carbon dioxide from the air with direct air capture (DAC) technology that uses limestone to accelerate carbon mineralization. The company states that the process, which takes years in nature, is accelerated to days.
Customers buy carbon removal credits, with each credit representing one ton of CO2 permanently stored underground and independently verified by a third party. The company describes its credits as its product for buyers seeking permanent carbon removal.
The company's first commercial DAC facility is in the Central Valley of California and is actively removing CO2. Heirloom is also building two DAC facilities in Northwestern Louisiana with a combined yearly capture capacity of nearly 320,000 tons, and states that its facilities are powered by 100% additional renewable energy. Open roles include controls, electrical and project engineering positions in Brisbane (California), Midland and Houston (Texas), and Calgary.
Product: Carbon dioxide removal credits from direct air capture facilities that use limestone mineralization for permanent underground storage.
Jobs at Heirloom Carbon
More energy & climate companies
Heron Power
Medium-voltage power conversion hardware for grid-scale solar, storage and data center projectsNew on EvolcHexium
Laser-based isotope enrichment technology (AVLIS), starting with lithium, for nuclear energy, medical and industrial usersNew on EvolcHPINC
Land, offshore and geothermal drilling rigs and services for energy operators worldwideNew on EvolcHyliion
KARNO linear-generator power modules for onsite electricity production for customers across a range of industriesNew on EvolcIcdrilling
Contract drilling services for oil and gas operators in US unconventional plays, including the Permian Basin and Haynesville ShaleNew on Evolc
Website technologies
Tools and platforms detected on this company’s website, grouped by purpose. Dates record when Evolc observed them.
Content delivery
- CloudflareHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Response headerserver
- Response headerserver
- Response headerserver
Content management
- WebflowHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Website resourcedeclared script/iframe or software asset
CRM & customer data
- SalesforceMedium confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Page markupproduct-specific DOM marker
- Page markupproduct-specific DOM marker
- Page markupproduct-specific DOM marker
Hosting
- AWSHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Website resourcedeclared script/iframe or software asset
Recruiting
- AshbyMedium confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Page markupsoftware structure signature
Website detection does not establish a paid subscription or company-wide use. Tools loaded after consent or sign-in may be missed. “No longer observed” does not prove the company stopped using a tool.