Insights

Market Leadership Heirloom is the first and only Direct Air Capture facility in North America that permanently captures CO2, establishing itself as a pioneering leader in scalable and innovative carbon removal solutions suitable for large corporations seeking significant sustainability impact.

Major Investments The company is making substantial capital investments, including over $1 billion in assets like new plants and facilities, indicating strong growth potential and opportunities for supply chain partners, equipment suppliers, and technology providers.

High-Profile Customer Base Heirloom counts top-tier clients such as Microsoft, JP Morgan, Stripe, and Shopify, demonstrating robust market demand and creating potential for business expansion through partnerships with other Fortune 500 companies committed to sustainability.

Rapid Growth Funding Recent Series B funding of $150 million and additional asset investments suggest a well-funded trajectory, making it a promising prospect for financial institutions and investors interested in cutting-edge environmental technology developments.

Global Expansion The company's move to establish multiple facilities in Louisiana and other strategic locations, along with its recognition in competitions like the Xprize Foundation, highlights great growth opportunities for vendors and service providers aligned with large-scale climate solutions.

Heirloom Tech Stack

Heirloom uses 8 technology products and services including Varnish, GitHub, SCADA, and more. Explore Heirloom's tech stack below.

  • Varnish
    Caching
  • GitHub
    Communication And Collaboration
  • SCADA
    Control Systems
  • Svelte
    Javascript Frameworks
  • Lenis
    Javascript Libraries
  • UPS
    Logistics
  • OneSignal
    Marketing Automation
  • Microsoft
    Miscellaneous

Media & News

Heirloom's Email Address Formats

Heirloom uses at least 1 format(s):
Heirloom Email FormatsExamplePercentage
First@heirloomcarbon.comJohn@heirloomcarbon.com
96%
FirstLast@heirloomcarbon.comJohnDoe@heirloomcarbon.com
1%
Last@heirloomcarbon.comDoe@heirloomcarbon.com
2%
LFirst@heirloomcarbon.comDJohn@heirloomcarbon.com
1%

Frequently Asked Questions

Where is Heirloom's headquarters located?

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Heirloom's main headquarters is located at San Francisco, California United States. The company has employees across 4 continents, including North AmericaAsiaOceania.

What is Heirloom's official website and social media links?

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Heirloom's official website is heirloomcarbon.com and has social profiles on LinkedInCrunchbase.

What is Heirloom's NAICS code?

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Heirloom's NAICS code is 54162 - Environmental Consulting Services.

How many employees does Heirloom have currently?

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As of April 2026, Heirloom has approximately 174 employees across 4 continents, including North AmericaAsiaOceania. Key team members include Head Of Strategic Initiatives: A. S.Head Of Technology: A. D.Head Of Strategic Engagement: C. C.. Explore Heirloom's employee directory with LeadIQ.

What industry does Heirloom belong to?

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Heirloom operates in the Environmental Services industry.

What technology does Heirloom use?

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Heirloom's tech stack includes VarnishGitHubSCADASvelteLenisUPSOneSignalMicrosoft.

What is Heirloom's email format?

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Heirloom's email format typically follows the pattern of First@heirloomcarbon.com. Find more Heirloom email formats with LeadIQ.

When was Heirloom founded?

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Heirloom was founded in 2020.

Heirloom

Environmental ServicesCalifornia, United States51-200 Employees

Mitigating the worst impacts of climate change by developing the world’s most cost-effective DAC technology to permanently remove CO2 from the atmosphere.

Our technology rapidly accelerates the natural processes that enable limestone to absorb carbon dioxide from the air from a timespan of years to days.

In 2023, Heirloom established the first and only Direct Air Capture facility in North America that permanently captures CO2. Our customers are the world’s biggest buyers of carbon removal including Microsoft, JP Morgan, McKinsey, Stripe, Shopify and more.

Section iconCompany Overview

Headquarters
San Francisco, California United States
NAICS Code
54162 - Environmental Consulting Services
Founded
2020
Employees
51-200

Section iconFunding & Financials

  • $100M$250M

    Heirloom's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    Heirloom's revenue is estimated to be in the range of $100M$250M

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