Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
AquaNRG logo

AquaNRG

Energy & Power

AquaNRG is provider of advanced technologies for subsurface energy and environmental applications. AquaNRG's technology has been funded through $1.4M grants by the US Department of Energy and National Science Foundation.

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

Lumafield logo

Lumafield

Manufacturing & Processing

Lumafield — is making an easy-to-use CT scanner and powerful, cloud-based analysis software that can solve tough engineering challenges at every stage of the product development process.

Elios logo

Elios

Energy & Power

Intention logo

Intention

Energy & Power

Climate-infrastructure-investment platform

Verne logo

Verne

Energy & Power

Verne — develops hydrogen storage systems for zero-emission heavy-duty trucks.

QD Solar logo

QD Solar

Energy & Power

energyGuard logo

energyGuard

Infrastructure & Construction

SnoFox Sciences logo

SnoFox Sciences

Transportation & Logistics

SnoFox Sciences — is developing a platform that provides actionable insights such as fault classification and predictive maintenance recommendations to the operators and stakeholders responsible for the performance and reliability of refrigerated spaces.

CLS Wind logo

CLS Wind

Energy & Power

Self-erecting system for installing wind turbines

Corvus Robotics logo

Corvus Robotics

Manufacturing & Processing

Andros Innovations logo

Andros Innovations

Manufacturing & Processing

Reducing the costs and energy demands of ammonia production through advanced reactor technology

HEXAspec logo

HEXAspec

Energy & Power

Thermal management solutions for semiconductor chips, enabling more powerful hardware

Raptor Maps logo

Raptor Maps

Energy & Power

AI software to increase solar farm power production, reduce operational risk, and lower costs

10DQ logo

10DQ

Energy & Power

Battery tech for long-duration energy storage at lower costs and improved safety

Resonant Energy logo

Resonant Energy

Energy & Power

STEM Americas Foundation logo

STEM Americas Foundation

Aluminum Technologies logo

Aluminum Technologies

Manufacturing & Processing

Low-GHG primary aluminum production with Carbo-Chloride Reduction

LA NPDT logo

LA NPDT

eSki Watercraft logo

eSki Watercraft

Energy & Power

Electric personal watercraft

AquaNRG logo

AquaNRG

Energy & Power

AquaNRG is provider of advanced technologies for subsurface energy and environmental applications. AquaNRG's technology has been funded through $1.4M grants by the US Department of Energy and National Science Foundation.

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

Lumafield logo

Lumafield

Manufacturing & Processing

Lumafield — is making an easy-to-use CT scanner and powerful, cloud-based analysis software that can solve tough engineering challenges at every stage of the product development process.

Elios logo

Elios

Energy & Power

Intention logo

Intention

Energy & Power

Climate-infrastructure-investment platform

Verne logo

Verne

Energy & Power

Verne — develops hydrogen storage systems for zero-emission heavy-duty trucks.

QD Solar logo

QD Solar

Energy & Power

energyGuard logo

energyGuard

Infrastructure & Construction

SnoFox Sciences logo

SnoFox Sciences

Transportation & Logistics

SnoFox Sciences — is developing a platform that provides actionable insights such as fault classification and predictive maintenance recommendations to the operators and stakeholders responsible for the performance and reliability of refrigerated spaces.

CLS Wind logo

CLS Wind

Energy & Power

Self-erecting system for installing wind turbines

Corvus Robotics logo

Corvus Robotics

Manufacturing & Processing

Andros Innovations logo

Andros Innovations

Manufacturing & Processing

Reducing the costs and energy demands of ammonia production through advanced reactor technology

HEXAspec logo

HEXAspec

Energy & Power

Thermal management solutions for semiconductor chips, enabling more powerful hardware

Raptor Maps logo

Raptor Maps

Energy & Power

AI software to increase solar farm power production, reduce operational risk, and lower costs

10DQ logo

10DQ

Energy & Power

Battery tech for long-duration energy storage at lower costs and improved safety

Resonant Energy logo

Resonant Energy

Energy & Power

STEM Americas Foundation logo

STEM Americas Foundation

Aluminum Technologies logo

Aluminum Technologies

Manufacturing & Processing

Low-GHG primary aluminum production with Carbo-Chloride Reduction

LA NPDT logo

LA NPDT

eSki Watercraft logo

eSki Watercraft

Energy & Power

Electric personal watercraft

pH Matter logo

pH Matter

Energy & Power

L3 Open Water Power logo

L3 Open Water Power

Energy & Power

Exakom logo

Exakom

Manufacturing & Processing

Exakom — is a pioneer in developing innovative data analysis products for the industrial automation market.

Osmoses logo

Osmoses

Manufacturing & Processing

Osmoses — develops advanced membrane technology for efficient gas and vapor separations.

Micronic Technologies logo

Micronic Technologies

Food, Water, & Land

Micronic Technologies — is a women co-founded and led, clean-tech company that is transforming industrial wastewater into high-value resources.

Altaeros logo

Altaeros

Energy & Power

ICODOS logo

ICODOS

Manufacturing & Processing

Scalable clean methanol to decarbonize transport and chemicals

e-Zinc logo

e-Zinc

Energy & Power

Solas Capture logo

Solas Capture

Solas Capture is developing a sunlight-powered process for sustainable lithium carbonate production using novel photobase chemistry. Our technology converts lithium brines and CO₂ into battery-grade materials with lower energy use, reduced waste, and a significantly smaller environmental footprint than conventional methods.

Dugu Systems logo

Dugu Systems

Energy & Power

Zero-carbon power with an emissions-free gas turbine

Janta Power logo

Janta Power

Energy & Power

The world’s first 3D solar tower technology

VesprSolar logo

VesprSolar

Energy & Power

VesprSolar — is transforming how solar panels are installed. VesprSolar V-Clamp™ is a low-cost fastener that makes solar arrays more secure and faster to install.

Atlas Robotics logo

Atlas Robotics

Transportation & Logistics

It's Electric logo

It's Electric

Infrastructure & Construction

it's electric accelerates the adoption of EVs with a scalable and simple Level-2 curbside charging solution, ensuring that every community has access to clean, sustainable transportation options. it's electric's "behind the meter" approach simplifies the installation process by eliminating the need for utility coordination, and is the first in the country to offer EVSE hardware with a detachable cord.

Blue Line Battery logo

Blue Line Battery

Energy & Power

Blue Line Battery designs and manufactures more accessible, more efficient, battery technology for industrial applications.

Renewell Energy logo

Renewell Energy

Energy & Power

Gravitational energy storage

Skylark Wireless logo

Skylark Wireless

Manufacturing & Processing

Far more than 5G: Skylark builds affordable, long-range, and high-speed wireless systems for rural broadband providers.

Hunt Energy Enterprises logo

Hunt Energy Enterprises

Energy & Power

Giner Labs logo

Giner Labs

Energy & Power

At Giner Labs, we focus on developing innovative solutions in electrochemical sensors, electrolyzers, fuel cells, advanced materials, and medical devices. Our goal is to create technologies that have a profound impact on various sectors, including clean energy, medical applications, as well as aerospace and defense.

Infinite Foundry logo

Infinite Foundry

Manufacturing & Processing

Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability

pH Matter logo

pH Matter

Energy & Power

L3 Open Water Power logo

L3 Open Water Power

Energy & Power

Exakom logo

Exakom

Manufacturing & Processing

Exakom — is a pioneer in developing innovative data analysis products for the industrial automation market.

Osmoses logo

Osmoses

Manufacturing & Processing

Osmoses — develops advanced membrane technology for efficient gas and vapor separations.

Micronic Technologies logo

Micronic Technologies

Food, Water, & Land

Micronic Technologies — is a women co-founded and led, clean-tech company that is transforming industrial wastewater into high-value resources.

Altaeros logo

Altaeros

Energy & Power

ICODOS logo

ICODOS

Manufacturing & Processing

Scalable clean methanol to decarbonize transport and chemicals

e-Zinc logo

e-Zinc

Energy & Power

Solas Capture logo

Solas Capture

Solas Capture is developing a sunlight-powered process for sustainable lithium carbonate production using novel photobase chemistry. Our technology converts lithium brines and CO₂ into battery-grade materials with lower energy use, reduced waste, and a significantly smaller environmental footprint than conventional methods.

Dugu Systems logo

Dugu Systems

Energy & Power

Zero-carbon power with an emissions-free gas turbine

Janta Power logo

Janta Power

Energy & Power

The world’s first 3D solar tower technology

VesprSolar logo

VesprSolar

Energy & Power

VesprSolar — is transforming how solar panels are installed. VesprSolar V-Clamp™ is a low-cost fastener that makes solar arrays more secure and faster to install.

Atlas Robotics logo

Atlas Robotics

Transportation & Logistics

It's Electric logo

It's Electric

Infrastructure & Construction

it's electric accelerates the adoption of EVs with a scalable and simple Level-2 curbside charging solution, ensuring that every community has access to clean, sustainable transportation options. it's electric's "behind the meter" approach simplifies the installation process by eliminating the need for utility coordination, and is the first in the country to offer EVSE hardware with a detachable cord.

Blue Line Battery logo

Blue Line Battery

Energy & Power

Blue Line Battery designs and manufactures more accessible, more efficient, battery technology for industrial applications.

Renewell Energy logo

Renewell Energy

Energy & Power

Gravitational energy storage

Skylark Wireless logo

Skylark Wireless

Manufacturing & Processing

Far more than 5G: Skylark builds affordable, long-range, and high-speed wireless systems for rural broadband providers.

Hunt Energy Enterprises logo

Hunt Energy Enterprises

Energy & Power

Giner Labs logo

Giner Labs

Energy & Power

At Giner Labs, we focus on developing innovative solutions in electrochemical sensors, electrolyzers, fuel cells, advanced materials, and medical devices. Our goal is to create technologies that have a profound impact on various sectors, including clean energy, medical applications, as well as aerospace and defense.

Infinite Foundry logo

Infinite Foundry

Manufacturing & Processing

Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability

Greentown member working in a wet lab
Greentown community members collaborating
Greentown member pipetting in a lab
Greentown members at work in the incubator
[ 03 ]Who We Are

Greentown is a 501(c)(3) nonprofit helping climate entrepreneurs build faster.

The way the world makes energy, materials, and food is changing — and the next decade will decide whether that change makes life better: more energy with fewer emissions, more industry with cleaner air, more good jobs.

That future comes from entrepreneurs — the heroes who turn ideas into real products, real companies, and the jobs of the future. And the ones who make it are the ones with a community behind them.

For 15 years, Greentown has been that community — leaning in with the space, the people, the funding, and the first customers they need. Get behind the entrepreneurs building our future.

[ 04 ]By The Numbers

Our Impact

Our members aren't just building better ways to operate; they're slashing emissions, boosting efficiency, and transforming how we use resources across the world. Now 15 years and counting, the impact speaks for itself.
Capital Mobilized

Our Startups Have Raised Over $0B

2011Now
Startups Supported

All-time

0

Currently home to

0

Global Footprint

0+

Countries Where
Startups Operate

Jobs Created

0

New Jobs Created by Our Members, and Counting

[ 05 ]Our Partners

Where Industry Meets Innovation

Startups bring the breakthroughs. Corporate partners bring the scale, infrastructure, expertise, and capital to make them matter.

  • Amazon
  • Amrize
  • Aramco
  • BCG
  • Chevron
  • Dassault Systemes
  • Emerson
  • Enel
  • Equinor
  • Foley Hoag
  • Fortescue
  • GeSI
  • GE Vernova
  • OnTerris (fka Montrose)
  • Saint-Gobain
  • Shell
  • TotalEnergies
  • Vinson & Elkins
  • Woodside Energy
For Startups

Apply for Membership

Ready to take your technology to the next level? Join the world's largest community of climatetech and energy entrepreneurs and fast-track your speed to market.

Greentown member prototyping hardware in the lab
For Partners
Greentown partners networking at an event

Become a Partner

Access the most concentrated pipeline of vetted climatetech companies in North America. Partner on pilots, invest, or join as a corporate sponsor.

Explore Partnership
Events
Speaker presenting on stage at a Greentown event

Get Involved

We pride ourselves on being a convener of the climatetech ecosystem. Join us at an upcoming event to explore all things climate action and collaboration.

View Calendar
For Investors
Founders and investors connecting at a Greentown incubator

Explore Investing

Tap into deal flow with the world’s largest community of climate and energy startups.

Explore Investing