Vaulted Deep Signs Deal with Microsoft to Remove Carbon via Waste Management Infrastructure

Agreement will scale commercial operations already delivering climate, waste, and community results 

HOUSTON, July 17, 2025 /PRNewswire/ -- Vaulted Deep, a waste management company turning excess organic material into permanent carbon removal, today announced a new offtake agreement with Microsoft. Under the deal, Vaulted will deliver up to 4.9 million tonnes of durable carbon dioxide removal over 12 years through its waste management infrastructure. The agreement runs through 2038 and will allow Vaulted to rapidly expand its proven approach—already permitted, operating, and delivering measurable results—to new sites across the U.S.

Vaulted removes carbon by storing organic waste that contains atmospheric CO₂ deep underground. The company partners with municipalities, industrial operators, and agricultural producers to manage their organic waste that can't be reused or safely applied to land. These waste streams include sludgy materials like biosolids, manure, paper sludge, and food and agricultural residues. Vaulted uses deep well injection to store the waste in stable geologic formations sealed by impermeable rock layers thousands of feet underground. This approach permanently removes carbon, reduces methane emissions, and helps keep trace contaminants like PFAS out of local environments.

"As carbon removal moves beyond pilots and prototypes, there is growing demand for solutions that can scale safely and address real-world problems," said Julia Reichelstein, co-founder and CEO of Vaulted Deep. "Vaulted offers a dual solution: it meets urgent waste management needs and drives measurable climate and public health improvements. This agreement reflects a broader shift in how carbon removal is being deployed. It is no longer limited to emerging technologies but is increasingly delivered through large-scale existing infrastructure with novel applications."

To date, Vaulted has removed nearly 18,000 tonnes of CO₂ and diverted more than 69,000 tonnes of organic waste from surface application, landfilling, and incineration. The company's methodology is certified by carbon registry Isometric, ensuring over 1,000-years of durability and that each credit reflects a scientifically validated tonne of permanent carbon removal.

"Vaulted Deep provides a differentiated, scalable approach to permanent carbon removal with low technology risk," said Brian Marrs, Senior Director of Energy and Carbon Removal at Microsoft. "Its work delivers immediate climate benefits while stimulating local economies and addresses long-standing environmental challenges that communities face every day. We support this solution as part of our broader effort to accelerate durable, high-integrity carbon removal."

The company is built on technology that has been safely operating since 2008 and is permitted in multiple states. Vaulted's technology was first applied to organic waste in Los Angeles, where it has handled 20 percent of the city's biosolids for the past 15 years.

In Kansas, Vaulted manages 75 percent of the City of Derby's biosolids and works with a dozen local farmers to manage excess manure that can cause nutrient runoff and odor concerns—all while durably sequestering carbon that would otherwise be released back into the atmosphere. In its first 18 months of operations, Vaulted's Great Plains site created 18 full-time jobs and generated more than $5 million in local economic investment. Infrastructure upgrades completed in July will allow the facility to triple its waste processing capacity, driving additional hiring and expanding partnerships with local haulers.

With over one billion tons of excess organic waste produced annually in the U.S., Vaulted is actively looking for new waste partners across industries to tackle their hard-to-manage organic waste.

About Vaulted Deep
Vaulted Deep provides permanent underground storage for excess organic waste that can't be reused, recycled, or safely applied to land. Using deep geologic infrastructure, the company protects local land, air, and water from potential pollutants while removing carbon from the atmosphere. Vaulted partners with municipalities, industrial operators, and agricultural producers to offer a secure, scalable alternative to surface application, landfilling, and incineration. The company offers a dual solution for carbon and waste management built on real-world infrastructure—permitted, operating, and ready to scale. Learn more at vaulteddeep.com.

Media Contact: Brooke Kinney | Vaulted@launchsquad.com 

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SOURCE Vaulted Deep