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Heirloom Carbon Technologies Funding Rounds and Valuation

Funding History Chart

Funding Round Details

	Funding Date	Share Class	Amount Raised	Price per Share	Post-Money Valuation	Key Investors
	06/28/2024	Series B-2	$150MM	$xx.xx	$398.34MM	Undisclosed Investors
Price per Share $xx.xx Shares Outstanding 59,464,817 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Undisclosed Investors
	06/28/2024	Series B-1	$53.66MM	$xx.xx	$398.34MM	Undisclosed Investors
Price per Share $xx.xx Shares Outstanding 26,588,786 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Undisclosed Investors
	03/17/2022	Series A	$52.8MM	$xx.xx	$242.5MM	Carbon Direct Capital Management, Ahren Innovation Capital, Breakthrough Energy Ventures, Microsoft
Price per Share $xx.xx Shares Outstanding 36,555,720 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Carbon Direct Capital Management, Ahren Innovation Capital, Breakthrough Energy Ventures, Microsoft
	05/26/2021	Series Seed 6	$74,999	$xx.xx	$31.46MM	Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
Price per Share $xx.xx Shares Outstanding 272,310 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
	05/26/2021	Series Seed 5	$327,497	$xx.xx	$31.46MM	Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
Price per Share $xx.xx Shares Outstanding 1,387,290 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
	05/26/2021	Series Seed 4	$549,996	$xx.xx	$31.46MM	Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
Price per Share $xx.xx Shares Outstanding 2,795,690 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
	05/26/2021	Series Seed 3	$1.05MM	$xx.xx	$31.46MM	Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
Price per Share $xx.xx Shares Outstanding 6,703,500 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
	05/26/2021	Series Seed 2	$1.92MM	$xx.xx	$31.46MM	Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
Price per Share $xx.xx Shares Outstanding 16,265,640 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
	05/26/2021	Series Seed 1	$699,999	$xx.xx	$31.46MM	Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures
Price per Share $xx.xx Shares Outstanding 6,842,610 Liquidation Pref Order 1 Liquidation Pref As Multiplier 1.0x Conversion Ratio 1.0x Dividend Rate Cumulative Non-cumulative Participating Non-participating Participation Cap N/A Key Investors Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures

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Heirloom Carbon Technologies stock FAQs

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Is Heirloom Carbon Technologies a public company?

No, Heirloom Carbon Technologies is a privately held company and is currently not publicly traded on any stock markets including NYSE or NASDAQ.

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Heirloom Carbon Technologies does not have an official ticker symbol because this company is not currently publicly traded.

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Heirloom Carbon Technologies’ news and media highlights

NBC Bay Area 11/21/2023

Carbon capture company opens facility near Bay Area

Heirloom Carbon Technologies has opened its first direct-air carbon-capture facility in Tracy, near the Bay Area. The facility, which captures one million kilograms of carbon per year by heating limestone to a powder, is part of Heirloom's strategy to become carbon negative. The company plans to expand tenfold next year and aims to remove 1 billion tons of CO2 from the atmosphere by 2035.

The Guardian 11/19/2023

Suck carbon from the air? US facility launches novel climate solution

Heirloom, a company in California, has launched the first commercial direct air capture (DAC) plant in the US, which uses limestone to remove carbon dioxide from the air and stores it in concrete. The Biden administration has committed at least $3.7 billion to similar carbon-removal projects. Heirloom aims to remove 1 billion tons of carbon dioxide by 2035 and has signed a contract with Microsoft for the tech giant to offset its emissions. The company has also received a $600 million award from the Department of Energy to build a hub in Louisiana.

TechHQ 11/13/2023

Technology to save the planet

Heirloom Carbon Technologies has launched its first commercial plant in the US which uses direct air capture to remove carbon dioxide from the atmosphere. The company, which has also secured a deal with Microsoft to remove 315,000 tons of carbon dioxide from the atmosphere, plans to use the gas in concrete, effectively preventing it from heating the planet. Despite criticism about the high cost of artificial carbon dioxide removal methods, Heirloom aims to bring the cost down to $100 per ton through economies of scale and mass-produced components.

Environment+Energy Leader 11/13/2023

New Direct Air Capture Commercial Facility Pulls 1,000 Tons of CO2 Per Year

Carbon capture and storage has new life in the United States with the first commercial facility that can capture up to 1,000 tons of carbon dioxide per year. Created by Heirloom Carbon Technologies, the facility uses limestone that is heated to pull CO2 from the air. The heated limestone is vertically stacked in trays where it acts like a sponge to absorb the carbon.

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Updated on: Nov 17, 2024

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