# CREW Carbon

> CREW Carbon is a Yale-spinout water and climate technology company based in Hamden, Connecticut. It retrofits municipal and industrial wastewater treatment plants with a closed-system enhanced-weathering process: dosing alkaline minerals into wastewater to convert dissolved CO2 into stable bicarbonate. The approach lowers operating costs and improves treatment performance for utilities while permanently and measurably removing atmospheric carbon, which it sells to corporate buyers as durable carbon removal credits.

- **Founded:** 2022
- **Headquarters:** Hamden, Connecticut, United States
- **Founders:** Joachim Katchinoff (Co-Founder & CEO), Noah Planavsky (Co-Founder & Scientific Advisor)
- **Team size:** ~22 employees
- **Products:** Process Intensification & Alkalinity Optimization, Permanent Carbon Removal (CDR), Closed-System Monitoring & Modeling
- **Notable:** Raised $25M Series A in May 2026 led by Burnt Island Ventures, Secured roughly $33M in carbon-removal offtake agreements via Frontier, Deployed at nearly 10 wastewater treatment facilities across the US and Europe

## Products & services

- **Process Intensification & Alkalinity Optimization** — Dosing strategically sourced alkaline minerals (including calcium carbonate) into wastewater to stabilize pH, boost alkalinity, improve nutrient removal and treatment performance, and reduce utility operating costs.
- **Permanent Carbon Removal (CDR)** — A closed-system enhanced-weathering process that converts dissolved CO2 into stable bicarbonate ions, storing carbon for thousands of years. Sold as durable, measurable carbon removal credits to corporate buyers.
- **Closed-System Monitoring & Modeling** — Inlet and outlet measurement with data-driven biogeochemical modeling for precise, verifiable quantification of carbon removed - a key differentiator over open-system weathering approaches.

## Achievements

- Raised $25M Series A in May 2026 led by Burnt Island Ventures
- Secured roughly $33M in carbon-removal offtake agreements via Frontier
- Deployed at nearly 10 wastewater treatment facilities across the US and Europe
- Spun out of Yale University earth-sciences research in 2022
- Sells verified permanent carbon removal to JPMorgan Chase, Google, Autodesk, Stripe and others

## Latest updates

- **2026-05** — Closed oversubscribed $25M Series A ($19M equity + $6M non-dilutive) led by Burnt Island Ventures to scale deployments.
- **2025** — Expanded deployments to nearly 10 wastewater facilities across the US and Europe; added customers including Google, JPMorgan Chase and Autodesk.
- **2024-10** — Raised $5.3M seed round led by Counteract.

## Links

- Website: https://crewcarbon.com
- LinkedIn: https://www.linkedin.com/company/crew-carbon

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Profile page: https://yespress.io/crew-carbon
Published by YesPress — https://yespress.io
Last updated: 2026-06-07