Heirloom

About Heirloom

Heirloom is a company focused on restoring balance to the atmosphere by harnessing the natural power of limestone to permanently remove billions of tons of carbon dioxide from the air. Their mission is to prevent the worst impacts of climate change through innovative carbon removal technologies.

Products & Services

Direct Air Capture (DAC) Technology:A scalable carbon removal solution that uses limestone to accelerate natural carbon mineralization, removing CO2 from the atmosphere in days and storing it permanently underground.

Carbon Removal Credits:Offers verifiable and permanent CO2 removal credits for purchase, reflecting one ton of CO2 removed per credit, guaranteed by third-party monitoring.

Direct Air Capture (DAC) facilities

Carbon removal credits

Specialties

Direct Air Capture (DAC) Carbon Removal Carbon Mineralization Renewable Energy Integration Verifiable carbon removal Permanent CO2 storage Low-cost limestone-based mineralization Community-first DAC deployment

Funding History

Debug: View Raw Funding Data

#	Type	Amount Fields	Date Fields	Investors
1	RT: Series B T: - FT: Series B	A: 150000000 MR: - FA: $150 million FAN: 150000000	D: 2025-12-02 FD: 2025-12-02	2 investors
2	RT: Series B T: - FT: Series B	A: 150000000 MR: - FA: $150 million FAN: 150000000	D: 2024-12-04 FD: 2024-12-04	13 investors

Series B Latest

2025-12-02

$150.0M

2 investors (Pro only)

Series B 2024-12-04

$150.0M

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Growth Metrics

+45%

Employee Growth

YoY

3.2x

Funding Growth

Last Round

12

Markets

Operating

10K+

Customers

Active

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Mock Up

Team & Leadership

No team data available

Team information is not yet available for this company

Recent News

Heirloom Announces New Product Launch

2 days ago

Company unveils innovative solution to transform the industry, expanding market reach and capabilities...

Leadership Team Expands with Industry Veteran

1 week ago

New executive brings 20+ years of experience to accelerate growth and strategic initiatives...

Company Recognized as Industry Leader

2 weeks ago

Receives prestigious award for innovation and customer satisfaction in competitive market...

Key Competitors

C1

Competitor Alpha

Series B · $50M raised

C2

Competitor Beta

Series C · $120M raised

C3

Competitor Gamma

Series A · $25M raised

C4

Competitor Delta

Seed · $10M raised