Vaulted Deep Secured Debt to Expand Carbon Removal Sites
The carbon removal firm will use institutional debt to scale infrastructure for new sites.
Updated on Sept. 21, 2026 in Corporate Finance
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Vaulted Deep has secured institutional debt financing to fund the construction of new carbon removal locations across the United States. The company previously removed over 27,000 metric tons of CO2 in 2026 for Frontier buyers.
Why it matters
The move demonstrates a shift toward using debt financing to scale carbon removal infrastructure based on long-term offtake contracts with corporate buyers. This allows operators to build capacity without relying solely on equity dilution.
Vaulted Deep reported 27,000 metric tons of CO2 removed in 2026, representing a 39% increase in volume compared to 2025. The firm currently operates carbon removal infrastructure in Kansas and California.
The players
Vaulted Deep
A carbon removal operator that collects organic waste and injects it underground.
Advantek Waste Management
The parent firm and technology developer from which Vaulted Deep spun out in 2023.
Microsoft
A global technology enterprise and buyer of carbon removal credits.
The details
Vaulted Deep manages carbon removal by collecting organic waste and converting it into a slurry for permanent underground injection. This process relies on technology originally developed by Advantek Waste Management. By securing debt against existing offtake contracts with entities like Microsoft and Frontier, the company can fund site development while maintaining its core waste management service revenue model.
Timeline
2023: Vaulted Deep spun out of Advantek Waste Management.
2025: Vaulted Deep established the baseline for its CO2 removal volume.
2026: Vaulted Deep removed 27,000 metric tons of CO2.
Market Landscape
This move follows the pattern set by the development of carbon removal credit markets as institutional lenders begin to treat long-term offtake agreements as bankable assets. It marks a transition for the sector from speculative venture backing to debt-supported infrastructure scaling.
Operators in the sustainability and infrastructure sectors should monitor whether debt financing models can effectively support recurring revenue from waste management services. This shift suggests that offtake contracts with major buyers are increasingly viable collateral for expansion.
The takeaway
Vaulted Deep's financing highlights that carbon removal providers with stable offtake contracts can pivot from venture equity to lower-cost institutional debt. Business owners should assess if their own long-term service agreements offer similar leverage for funding infrastructure growth.
Further reading
For more on how high-growth firms manage capital structures, see our latest coverage on Corporate Finance.
Live Poll
Do you trust that private companies can successfully scale carbon removal through long-term corporate contracts?
