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Company	Lithos Carbon
Short Description	Developer of enhanced weathering solutions using basalt for carbon sequestration and improved soil health
Status	Private
Year Founded	2022
Industry Group	agriculture & food
Sector	crop inputs
TRL Range	9
Country	United States
Nbr Employees
Revenue Range
Total Equity Capital Raised	$6.29M
Last Stage Capital Raised	Grant round of $4.98M 2024
Investors	Union Square Ventures, Greylock Partners, Bain Capital Ventures, Carbon Removal Partners, Fall Line Capital, Cavallo Ventures, US Department of Energy (DOE)

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Lithos Carbon

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Developer of enhanced weathering solutions using basalt for carbon sequestration and improved soil health

Founded in 2022

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Company type Private Public ()

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Industry Group agriculture & food

Sector crop inputs

TRL Range 9

TRL 1	Basic research
TRL 2	Technology formulation
TRL 3	Applied research
TRL 4	Small scale prototype
TRL 5	Large scale prototype
TRL 6	Prototype system
TRL 7	Demonstration system
TRL 8	First of a kind commercial system
TRL 9	Full commercial application

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Headquarters Seattle, WA Seattle, United States

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Updated by Hattie Partner at on 04/13/2025

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Mary Yap

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06/29/2022		Frontier Frontier Lithos Carbon has been selected to be part of Frontier’s first round of carbon removal purchases, following the announcement earlier this year that Frontier’s members would spend $925M (USD) on carbon removal over the next nine years, to stimulate and accelerate the development of carbon removal technology. Confirmed by Frontier	Learn more	Delete

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06/29/2022

Frontier Frontier

Lithos Carbon has been selected to be part of Frontier’s first round of carbon removal purchases, following the announcement earlier this year that Frontier’s members would spend $925M (USD) on carbon removal over the next nine years, to stimulate and accelerate the development of carbon removal technology.

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05/08/2024	XPRIZE XPRIZE Finalist - Rocks track View source Confirmed by XPRIZE	Incubation/Acceleration	Delete

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10/18/2024	US Department of Energy (DOE) US Department of Energy (DOE) (1) Post-money valuation of Awarded $3.99M by U.S. Dept of Energy (DoE) plus $999,000 in non-DoE funding to run pilot project (source)	Grant	$4,980,000	Delete

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Developer of enhanced weathering solutions using basalt for carbon sequestration and improved soil health

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