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CREW Carbon

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Accelerates natural weathering processes for meaningful climate impact by carbon removal

New Haven, United StatesFounded 2022Energy
Valuation $50–100M Last recorded · 2026
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About CREW Carbon

CREW Carbon, founded in 2022 by Dr. Joachim Katchinoff and Professor Noah Planavsky, is a climate technology company that emerged from research conducted at Yale University. The founders’ extensive backgrounds in geochemistry and earth sciences form the bedrock of the company's mission. Katchinoff, who serves as CEO, spent years investigating the global carbon cycle, which directly informs the company's core technology.

The firm operates in the carbon dioxide removal (CDR) market, specifically targeting the wastewater treatment sector. Its business model centers on transforming municipal and industrial wastewater facilities into carbon removal hubs. This is achieved by deploying a proprietary technology that accelerates the natural process of enhanced weathering within the controlled environment of these plants. CREW introduces precise formulas of natural, alkaline minerals into wastewater streams, which are inherently rich in biogenic CO2 from microbial decomposition. This process converts the CO2 into stable bicarbonate ions that are permanently sequestered when the treated water is discharged into rivers and ultimately the ocean.

Revenue is generated through the sale of verified carbon removal credits to corporations and governments aiming to meet climate targets. In a significant milestone, CREW Carbon secured a $32.1 million offtake agreement with Frontier, a consortium including major companies like Stripe, Alphabet, and JP Morgan Chase, to deliver over 71,000 tons of carbon removal by 2030. The company has already commenced delivery on this agreement, with its first batch of credits from its New Haven, Connecticut operations verified by the carbon registry Isometric. For its clients, the wastewater facilities, CREW's solution offers operational co-benefits, such as improved pH and alkalinity management, which can lower treatment costs and enhance pollutant removal.

The company's approach is designed for rapid and scalable deployment by integrating into existing infrastructure, which minimizes capital expenditure and utilizes existing permits. CREW has developed a proprietary monitoring, reporting, and verification (MRV) system, including inlet and outlet sensor arrays, to precisely quantify the amount of CO2 removed in its closed-system process. Having secured $5.3 million in an oversubscribed seed funding round, the company is expanding its team and deploying its systems at additional plants in the U.S. and Europe.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2022
Headquarters
New Haven, United States
Employees
26
Open positions
3
Dealroom signal
90.1/100
Sub-industry
Water
Sector
Energy, Spinout, Sustainable Development Goals, Carbon Capture and Storage, Wastewater Treatment, Climate Tech, Blue Economy, Carbon Removal, Point Source, Carbon Storage, Carbon Mineralization
Technology
Deep Tech
Business model
Manufacturing
Client focus
b2b

Funding history

4 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
GRANT✓Other financing May 2026 $6M — Undisclosed ↗
SERIES A✓Equity / VC May 2026 $19M $76M ANIMO Ventures · Kibo Invest · Idemitsu CVC · Connecticut Innovations ↗
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Growth signals

CREW Carbon website traffic

Latest recorded traffic for CREW Carbon is 2.6K monthly website visits, down 52.7% over the last three months. CREW Carbon's team grew 550% over the past year.

Latest monthly visits2.6K 3-month web change-52.7% 1-year team growth+550%
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Similar companies

Closest operating peers by Dealroom taxonomy

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Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

16 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed8 investors entered at this stage

  • Counteract
  • Ponderosa Ventures
  • ReGen Ventures
  • Echo River Capital
  • Newlab
  • Carbon Drawdown Initiative
  • Connecticut Innovations
  • ANIMO Ventures

Series A7 investors entered at this stage

  • Burnt Island Ventures
  • Kibo Invest
  • Idemitsu CVC
  • New York Ventures
  • Builders Vision
  • Sony Innovation Fund
  • AP Ventures

Other known investors1 additional known investor

  • Yale University
Team profiled 3 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
1 countries with
team presence
🇺🇸 United States100%
1 country shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about CREW Carbon on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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