Insights

Strategic DAC Partnerships Direct engagement with large enterprise buyers and tech firms that are already investing in carbon removal presents a prime opportunity. Heirloom’s existing customer base includes Microsoft, JPMorgan, McKinsey, Stripe, and Shopify, indicating strong alignment with global enterprises seeking scalable decarbonization solutions.

North American Footprint Heirloom operates a North American first and only permanent DAC facility since 2023, with recent expansion and investment activity in Louisiana and potential collaboration in Canada. Target expansion into North American industrial and energy hubs to capture local mandates and incentives.

Scale Financing Recent multi-hundred million dollar facility investments and a significant Series B funding signal strong appetite for capital-intensive DAC projects. Opportunity to position as a preferred co-investor or project financer for customers seeking bundled carbon removal solutions.

Industrial & Port Projects Major DAC facility developments at ports (Port of Caddo-Bossier) and large-scale asset investments create openings for joint ventures with logistics, manufacturing, and energy players seeking carbon removal capacity tied to industrial supply chains and regional decarbonization mandates.

Publicity and Xprize Alignment Recognition from Xprize Carbon Removal and high-profile media coverage enhance credibility. Leverage this visibility to approach government programs, grant-funded initiatives, and corporate sustainability teams pursuing award-backed validation and risk mitigation for DAC deployments.

Heirloom Tech Stack

Heirloom uses 8 technology products and services including Grafana, LinkedIn Recruiter, Amazon Web Services, and more. Explore Heirloom's tech stack below.

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
2%
Last@heirloomcarbon.comDoe@heirloomcarbon.com
1%
LFirst@heirloomcarbon.comDJohn@heirloomcarbon.com
1%

Frequently Asked Questions

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.

How much revenue does Heirloom generate?

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As of August 2026, Heirloom's annual revenue is estimated to be $100M - $250M.

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 August 2026, Heirloom has approximately 156 employees across 4 continents, including North AmericaAsiaEurope. Key team members include Head Of Strategic Initiatives: A. S.Head Of Strategic Engagement: C. C.Head Of Legal (general Counsel) & People: L. Q.. 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 GrafanaLinkedIn RecruiterAmazon Web ServicesDBTPostgreSQLNetSuiteShopifyGoogle Workspace.

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.

How much funding has Heirloom raised to date?

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As of August 2026, Heirloom has raised $204M in funding. The last funding round occurred on Mar 25, 2025.

When was Heirloom founded?

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Heirloom was founded in 2020.
Heirloom logo

Heirloom

Environmental ServicesCalifornia, United States51-200 Employees

Heirloom is an environmental services company based in San Francisco, California, focused on removing carbon dioxide from the atmosphere. It aims to accelerate limestone's natural uptake of CO2, reducing removal times from years to days, and in 2023 established North America's first facility that permanently captures CO2 through direct air capture. The company's client base includes major carbon-removal buyers such as Microsoft, JP Morgan, McKinsey, Stripe, and Shopify.

Operating in the direct air capture and broader environmental services space, Heirloom seeks scalable, permanent removal solutions for large-scale deployments. A recent development involves a partnership with TKMS Group and thyssenkrupp Calvion to pursue large-scale DAC projects in Alberta, Canada, reflecting its ongoing expansion efforts; the company is headquartered in California and maintains a mid-sized team.

Section iconCompany Overview

NAICS Code
54162 - Environmental Consulting Services
Founded
2020
Employees
51-200

Section iconFunding & Financials

  • $204M

    Heirloom has raised a total of $204M of funding over 7 rounds. Their latest funding round was raised on Mar 25, 2025as a series_unknown.

  • $100M - $250M

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

Section iconFunding & Financials

  • $204M

    Heirloom has raised a total of $204M of funding over 7 rounds. Their latest funding round was raised on Mar 25, 2025as a series_unknown.

  • $100M - $250M

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

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