Insights

Strong Funding Momentum Heirloom has successfully raised a total of $150 million in Series B funding, demonstrating strong investor confidence and significant growth potential. This momentum presents sales opportunities with major corporations and government agencies seeking scalable carbon removal solutions supported by substantial financial backing.

Leading Industry Presence As the first and only Direct Air Capture facility in North America capable of permanently removing CO2, Heirloom establishes a unique position in the environmental services market, making it an attractive partner for large environmental and corporate entities striving for carbon neutrality.

Strategic Corporate Partnerships Heirloom's recent investments from high-profile companies such as Japan Airlines, H&M Group, Mitsubishi, and Siemens highlight its appeal among major corporations committed to sustainability, offering opportunities for collaboration and joint ventures in emissions reduction and renewable initiatives.

Expanding Infrastructure The company's recent billion-dollar investment in two new plants at the Port of Caddo-Bossier indicates rapid scaling capabilities, creating opportunities to sell additional equipment, technology services, or maintenance contracts as they expand their operational footprint.

Technology Leadership Heirloom's innovative use of rapid limestone-based CO2 absorption technology positions it as a leader in low-cost direct air capture, enabling sales pitches focused on its proprietary solutions to government agencies, environmental organizations, and corporations seeking cost-effective climate mitigation tools.

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

What is Heirloom's stock symbol?

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Heirloom is a publicly traded company; the company's stock symbol is N/A.

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 December 2025, Heirloom has approximately 183 employees across 5 continents, including North AmericaAsiaEurope. Key team members include Chief Of Staff: C. C.Head Of Business Development And Partnerships: N. P.Head Of Strategic Initiatives: A. S.. 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

Stock Symbol
N/A
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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