Vaulted Deep: Biomass Carbon Removal And Storage Company Raises $32.3 Million (Series A)

Vaulted Deep, a biomass carbon removal and storage (BiCRS) company specializing in durable carbon dioxide removal (CDR), announced it has raised $32.3 million in Series A funding. The round was led by new investor Prelude Ventures, with super pro-rata participation from returning investors such as Lowercarbon Capital, Earthshot Ventures, and WovenEarth Ventures. Additional new investors include Fall Line Capital and Rethink Impact.

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As a spinoff from an established waste disposal company, Vaulted launched in late 2023 with existing permitted well infrastructure and an experienced team. This foundation has enabled Vaulted to deliver CDR quickly and safely using mature, proven injection technology.

Vaulted has already issued over 7,000 tons of CDR, achieving the industry’s fastest and highest rate of deliveries in the first year of operations for durable CDR (source: CDR.fyi). In May 2024, Frontier announced it had facilitated a $58.3 million offtake agreement with Vaulted Deep to permanently remove 152,480 tons of carbon dioxide between 2024 and 2027. Vaulted is currently generating CDR at a rate of over 1,500 tons per month and plans to begin construction on its next U.S. facility, Monarch Fields, with the additional funding.

A Unique Carbon Removal Process

Vaulted’s approach begins with vegetation naturally drawing down carbon dioxide from the atmosphere via photosynthesis. Much of this carbon ends up as carbon-rich waste in the form of biosolids, manure, food, or agricultural waste, which is often incinerated, landfilled, or spread on land, releasing carbon dioxide back into the atmosphere.

Vaulted prevents this by turning that waste into a carbon-rich slurry and injecting it into deep disposal wells for permanent geologic storage. By processing often pathogenic and contaminated organic wastes, Vaulted’s CDR provides substantial co-benefits, including methane emission elimination, reduced water-borne illnesses, and prevention of soil and water pollution. The process avoids the need for costly carbon capture infrastructure, delivering scalable and permanent CDR quickly.

Key Quotes

“This funding comes on the heels of Vaulted’s first full year of successful operations and will allow the company to expand carbon dioxide removal capacity, including adding new deep injection well sites in the coming years. Vaulted Deep’s rapid progress from seed funding to Series A, from concept to high-volume delivery, demonstrates the immense potential of its approach. We believe Vaulted’s technology can lead the way to durable carbon removal at a meaningful scale, and we are excited to support their mission to deliver real, lasting climate solutions.”— Matt Eggers, Managing Partner at Prelude Ventures

“Rapid scalable deliveries are essential to helping the CDR industry grow in a sustainable and impactful way. By leveraging our legacy assets and expertise, our vision has always been to lead the charge on speed and scale. With this next round of funding, Vaulted will supercharge on both fronts by developing new wells for more CDR removal —and delivering more tonnes, faster, to meet rising industry demand.”— Julia Reichelstein, Co-Founder and CEO of Vaulted Deep

“The magnitude and pace of Vaulted’s durable carbon removal deliveries stem from decades of experience perfecting our technology in industrial waste management. Our successful Series A accelerates our ability to open new sites across multiple geographies, including our new facility Monarch Fields, leveraging our proven technology to fill customer demand while delivering benefits beyond carbon removal to our customers and the communities we serve.”— Omar Abou Sayed, Co-Founder and Executive Chairman of Vaulted Deep