Heirloom

Heirloom Closes $150M for Carbon Capture Expansion

Heirloom, a direct air capture company using enhanced mineral weathering to remove CO2 from the atmosphere, has raised $150 million in Series B funding.

The round was led by Breakthrough Energy Ventures with participation from Lowercarbon Capital, Ahren Innovation Capital, and Mitsubishi Corporation.

Key Highlights

• Total funding to date: $203 million
• Backed by Bill Gates' climate fund
• Focus on scalable carbon removal

Company Overview

Heirloom has developed a direct air capture technology that enhances the natural process of CO2 absorption from the atmosphere using limestone-based systems. The company aims to remove billions of tons of CO2 at low cost.