Vaulted Deep, a waste management company that injects organic waste deep underground for permanent carbon removal, has closed a $35 million debt facility with Mediobanca. The deal, arranged by CFP Energy, is the largest publicly disclosed U.S. commercial debt transaction in durable carbon removal backed by long-term purchase contracts. Vaulted's revenue from waste service agreements and contracted carbon removal, including offtakes with Frontier buyers, supported the borrowing. The company delivered over 20,000 tons of carbon removal in the first half of 2026 and has increased weekly waste volume sixfold since 2023. The new capital will fund additional waste disposal sites across the country and further develop its AI-accelerated site development platform, which speeds up permitting and injection operations. Vaulted has raised $48 million in equity and received an $8 million XPRIZE award. This financing demonstrates how multi-year offtake agreements can unlock institutional debt for climate infrastructure. It signals growing lender confidence in carbon removal as a bankable asset class, which could help other startups in the space access capital for physical buildout.
