September 30, 2026
Vaulted Deep organic waste and carbon removal infrastructure operations in the United States.
Vaulted Deep has secured $35 million in debt financing from Mediobanca to expand its US subsurface organic waste infrastructure and accelerate new site development.

Vaulted Deep has secured a $35 million debt facility from Mediobanca to support the expansion of its subsurface organic waste infrastructure across the United States. CFP Energy arranged the financing.

The financing is supported by Vaulted Deep’s waste service agreements and contracted carbon removal revenue, including offtake agreements with buyers through Frontier. The company plans to use the capital to advance additional waste disposal sites and invest in technology that can accelerate the evaluation and development of new locations.

Founded in 2023, Houston-based Vaulted Deep was co-founded by CEO Julia Reichelstein and Omar Abou-Sayed. The company builds and operates infrastructure that uses deep well injection to store non-hazardous organic waste in stable geological formations. Its customers include municipalities, industrial operators and agricultural producers seeking alternatives to land application, landfilling and incineration. The process also enables permanent carbon removal.

Vaulted Deep said the facility will also support continued development of its AI-Accelerated Site Development Platform, which combines tools for site discovery, permitting and injection operations.

The company said the debt facility adds to $48 million in equity financing raised to date and an $8 million award from the XPRIZE Carbon Removal competition. Vaulted Deep previously announced a $32.3 million Series A led by Prelude Ventures in November 2024.

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