# Vaulted Deep

> Vaulted Deep is a Houston-based climate tech company that turns sludgy organic waste - biosolids, manure, food and agricultural waste, paper sludge - into permanent carbon removal by injecting it thousands of feet underground using patented slurry sequestration technology. Spun out of injection-well specialist Advantek in 2023, the company offers durable, low-cost, gigaton-scalable carbon dioxide removal while diverting hard-to-handle waste from landfills, oceans and fields. Its credits have been bought by Microsoft, Frontier Climate and others, and it won $8M in the Musk-backed XPRIZE Carbon Removal competition.

- **Founded:** 2023
- **Headquarters:** Houston, Texas, United States
- **Founders:** Julia Reichelstein (Co-Founder & CEO), Omar Abou-Sayed (Co-Founder & Executive Chairman)
- **Team size:** ~59 employees
- **Products:** Slurry Geologic Sequestration, Durable Carbon Removal Credits, Organic Waste Disposal
- **Notable:** Won $8M as a runner-up in the Musk Foundation-backed XPRIZE Carbon Removal competition (2025)., Signed one of the largest-ever carbon removal deals: up to 4.9 million tonnes with Microsoft (2025)., Closed a $58.3M, 152,480-tonne offtake with Frontier Climate.

## Products & services

- **Slurry Geologic Sequestration** — Patented technology that injects minimally processed, carbon-rich organic waste (biosolids, manure, food and agricultural waste, paper sludge) thousands of feet underground into porous rock formations for durable (10,000+ year) storage.
- **Durable Carbon Removal Credits** — Verified, permanent carbon dioxide removal credits sold to corporate buyers via offtake agreements; among the most durable and lowest-cost on the market.
- **Organic Waste Disposal** — A disposal path for hard-to-handle, often PFAS-contaminated organic waste streams that would otherwise be landfilled, land-applied, or dumped, avoiding methane and greenhouse gas emissions.

## Achievements

- Won $8M as a runner-up in the Musk Foundation-backed XPRIZE Carbon Removal competition (2025).
- Signed one of the largest-ever carbon removal deals: up to 4.9 million tonnes with Microsoft (2025).
- Closed a $58.3M, 152,480-tonne offtake with Frontier Climate.
- Raised $32.3M Series A within its first full year of operations (2024).
- Delivered 9,986 net tonnes of verified carbon removal during its XPRIZE demonstration period.

## Latest updates

- **2025-07** — Signed deal with Microsoft to remove up to 4.9 million tonnes of carbon via waste-management infrastructure - one of the largest carbon removal agreements globally.
- **2025-04** — Awarded $8M in the XPRIZE Carbon Removal competition for its organic-waste sequestration process.
- **2024-11** — Secured $32.3M Series A led by Prelude Ventures to scale biomass carbon removal and storage capacity.

## Links

- Website: https://vaulteddeep.com
- LinkedIn: https://www.linkedin.com/company/vaulted-deep/
- Twitter/X: https://x.com/VaultedDeep

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Profile page: https://yespress.io/vaulted-deep
Published by YesPress — https://yespress.io
Last updated: 2026-06-10