Startup Portfolio
Tackling global billion-dollar markets and hard-to-abate sectors, our climate tech startups are addressing the emissions challenges that will make or break this decisive decade.
Meet Our Latest Batch of Startups: Cohort 22-1
Why 22-1? Historically, our cohorts were named for the year’s peak atmospheric carbon dioxide concentration (in parts per million [ppm]), based on the Keeling Curve.
We're a bunch of science nerds at D3, but we realized this was just a little too wonky—so we’re switching our cohort names to represent the year and quarter of their launch.
STARTUPS BY COHORT:
- All
- Ag and Land Use
- Batteries
- Biofuels / Synfuels / Chemicals
- Building Heat
- Buildings
- Buildings (cooling / heating / envelopes)
- Buildings (lighting / appliances)
- Carbon Capture and Utilization
- Carbon Markets
- Cohort 22-1
- Cohort 417
- Cohort 419
- Electric Mobility
- Electricity
- Enabling Software
- Financing and Project Development
- Fugitive Emissions
- Hydrogen
- Industry
- Long-duration Storage
- Low-carbon Materials
- Other
- Power Electronics and Hardware
- Renewable Energy
- Renewable Generation
- Renewable Process Heat
- Transportation
- Vehicle Efficiency
- Waste

Aeromutable
Reducing aerodynamic drag on trucks with an AI-controlled air injection system.
ALT Mobility
Electrifying urban mobility in India with simplified, affordable commercial EV leasing solutions.

Altus Thermal
Electrifying domestic hot water to deliver greater savings, ensure user comfort, and reduce carbon emissions.

Antora Energy
Building inexpensive long-duration energy storage using high-efficiency thermophotovoltaics.

Banyan Infrastructure
Making it easier for lenders and borrowers to finance sustainable infrastructure projects.

betteries AMPS GmbH
Providing mobile, modular, and multipurpose power systems based on upcycling EV batteries.

Blue Frontier
Reducing air conditioning-related energy consumption up to 90%.

BlueDot Photonics
Enabling perovskite-based photovoltaics that improve the efficiency and durability and lower the costs of solar energy.

Celadyne Technologies
Developing a new proton exchange membrane (PEM) for use in fuel cells and electrolyzers.

Cell Propulsion
Electrifying commercial vehicle fleets in India by offering full-stack solutions, comprising electric trucks, operations and management support, charging, and energy and asset management services.

CleanFiber
Providing carbon-negative cellulose insulation that outperforms conventional products, without added costs.

Compact Membrane Systems
Developing membrane solutions for hard-to-decarbonize industrial sectors and applications.

Darcy Solutions
Boosting the efficiency, reducing cost, and reducing the number of boreholes needed for ground-source heat pumps.

Digital Harvest
Using machine learning technology to enhance agricultural yields and increase profits for sustainable agriculture farmers.

Eavor Technologies
Creating the world’s first truly scalable form of clean, baseload, and dispatchable power.

Enchi Corporation
Driving the next generation of biofuels, starting with non-food cellulosic ethanol.

Energy Dome
Developing a low-cost and efficient system for long-duration electricity storage using liquid CO2.

Energy Integration Inc.
Designing and installing mechanical vapor recompression (MVR) systems for efficient, electrified, decarbonized biofuels production.

Frost Methane
Helping to identify and neutralize concentrated sources of methane worldwide, including larger anthropogenic methane sources such as abandoned and active coal mines.

iBeam Materials
Developing a transformative new manufacturing technology for low-cost, high-efficiency, LED light.

Ionic Liquid
Replacing HFC refrigerants with proprietary additives that allow practical use of carbon dioxide as a cooling system refrigerant.

Iris Light Technologies
Developing a tunable laser that can be printed directly onto semiconductor chips for improved data center efficiency.

Kanin Energy

M2 Thermal Solutions

Mangrove Lithium

Mission Zero Technologies

MOJO Green

Mycotech Labs

Nithio Holdings

Perl Street
Creating a platform to streamline project financing of emerging distributed infrastructure assets.

Project Vesta

Quanterra Systems

Rebound Technologies

Refillable

rePurpose Global

Seaforestation
Pioneering algae production in deeper water away from coastlines.

SeeO2 Energy

Shimmer Industries

Sironix Renewables

Summit Nanotech

Switched Source

TekUncorked
Improving reliability and reducing losses on India's electricity grid.

Three Wheels United

TS Conductor

Utvyakta Solutions

XL Batteries

Zinc8 Energy Solutions
APPLY TODAY:
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We’re here to help you bridge critical finance and resource gaps by uniting and aligning the world’s most promising climate tech startups—like you—with D3’s network of committed investors, corporate partners, market experts, and mentors.