Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
Piaggio Fast Forward logo

Piaggio Fast Forward

Transportation & Logistics

Flight Guard AI logo

Flight Guard AI

Transportation & Logistics

Pilot-wearable safety systems using human-centered AI to enhance pilot awareness

Innovator Energy logo

Innovator Energy

Energy & Power

Developing and deploying solutions in cooling, heating, and heat transfer

Smart Resource Labs logo

Smart Resource Labs

Energy & Power

We make data easy

Eugenie logo

Eugenie

Manufacturing & Processing

Eugenie — has developed an AI-based predictive maintenance platform that reduces 3% of the total HC production losses suffered by upstream oil and gas operations, thus helping to reduce billions of metric tons of GHG emissions annually.

Capture6 logo

Capture6

Manufacturing & Processing

Capture6 — removes carbon from the atmosphere while producing clean water and other industrial products from seawater or other saltwater inputs.

TransOceans Clean Energy Risk, LLC logo

TransOceans Clean Energy Risk, LLC

Energy & Power

Risk management solutions for global clean tech risk portfolios

Torres Orbital Mining Inc (TOM) logo

Torres Orbital Mining Inc (TOM)

Infrastructure & Construction

Autonomous lunar excavation systems for dust-free regolith mining and space operations

Stash Energy logo

Stash Energy

Energy & Power

Stash Energy makes home heating and cooling affordable and sustainable with the first smart heat pump with built-in thermal energy storage.

H2Pro logo

H2Pro

Energy & Power

H2Pro — is enabling the wide scale adoption of sustainable hydrogen fuel by introducing a novel production technology E-TAC.

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.

Veloce Energy logo

Veloce Energy

Energy & Power

Veloce Energy — develops technology to create intelligent, flexible, and scalable grid-edge energy networks (GrEEN). Initially focused on cost-reduction in EV charging stations, the Veloce FastGrid™ system uniquely combines energy storage, intelligence, a streamlined installation system, and a unique charging-infrastructure-as-a-service model to maximize and deliver customer value.

Energy Well Texas logo

Energy Well Texas

Energy & Power

Our mission is to strengthen communities by helping millions of people switch to fairer, more resilient, 100% clean energy.

American Battery Technology Company logo

American Battery Technology Company

Energy & Power

Advanced technology, first-mover lithium-ion battery recycling and primary battery metal extraction company

Inovues logo

Inovues

Infrastructure & Construction

Black Girls Do Engineer logo

Black Girls Do Engineer

Manufacturing & Processing

Black Girls Do Engineer Corporation - provides girls and young women ages 6 to 21 with mentoring, personal growth regimens, STEM projects and activities, STEM challenges, and guidance on career paths based on insight from professionals that are leaders in the STEM industry. The goal is to provide access, awareness, and advocate for two million Black-American girls to pursue STEM careers by the year 2050. The organization was created with the concern that Black-American girls and young women are not choosing STEM related careers, and their passion is to change the narrative and fix this issue.

10DQ logo

10DQ

Energy & Power

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

Capro-X logo

Capro-X

Food, Water, & Land

Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals

Ensovi logo

Ensovi

Manufacturing & Processing

Cofactor recycling platform for sustainable drug manufacturing

Building Envelope Materials logo

Building Envelope Materials

Infrastructure & Construction

Piaggio Fast Forward logo

Piaggio Fast Forward

Transportation & Logistics

Flight Guard AI logo

Flight Guard AI

Transportation & Logistics

Pilot-wearable safety systems using human-centered AI to enhance pilot awareness

Innovator Energy logo

Innovator Energy

Energy & Power

Developing and deploying solutions in cooling, heating, and heat transfer

Smart Resource Labs logo

Smart Resource Labs

Energy & Power

We make data easy

Eugenie logo

Eugenie

Manufacturing & Processing

Eugenie — has developed an AI-based predictive maintenance platform that reduces 3% of the total HC production losses suffered by upstream oil and gas operations, thus helping to reduce billions of metric tons of GHG emissions annually.

Capture6 logo

Capture6

Manufacturing & Processing

Capture6 — removes carbon from the atmosphere while producing clean water and other industrial products from seawater or other saltwater inputs.

TransOceans Clean Energy Risk, LLC logo

TransOceans Clean Energy Risk, LLC

Energy & Power

Risk management solutions for global clean tech risk portfolios

Torres Orbital Mining Inc (TOM) logo

Torres Orbital Mining Inc (TOM)

Infrastructure & Construction

Autonomous lunar excavation systems for dust-free regolith mining and space operations

Stash Energy logo

Stash Energy

Energy & Power

Stash Energy makes home heating and cooling affordable and sustainable with the first smart heat pump with built-in thermal energy storage.

H2Pro logo

H2Pro

Energy & Power

H2Pro — is enabling the wide scale adoption of sustainable hydrogen fuel by introducing a novel production technology E-TAC.

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.

Veloce Energy logo

Veloce Energy

Energy & Power

Veloce Energy — develops technology to create intelligent, flexible, and scalable grid-edge energy networks (GrEEN). Initially focused on cost-reduction in EV charging stations, the Veloce FastGrid™ system uniquely combines energy storage, intelligence, a streamlined installation system, and a unique charging-infrastructure-as-a-service model to maximize and deliver customer value.

Energy Well Texas logo

Energy Well Texas

Energy & Power

Our mission is to strengthen communities by helping millions of people switch to fairer, more resilient, 100% clean energy.

American Battery Technology Company logo

American Battery Technology Company

Energy & Power

Advanced technology, first-mover lithium-ion battery recycling and primary battery metal extraction company

Inovues logo

Inovues

Infrastructure & Construction

Black Girls Do Engineer logo

Black Girls Do Engineer

Manufacturing & Processing

Black Girls Do Engineer Corporation - provides girls and young women ages 6 to 21 with mentoring, personal growth regimens, STEM projects and activities, STEM challenges, and guidance on career paths based on insight from professionals that are leaders in the STEM industry. The goal is to provide access, awareness, and advocate for two million Black-American girls to pursue STEM careers by the year 2050. The organization was created with the concern that Black-American girls and young women are not choosing STEM related careers, and their passion is to change the narrative and fix this issue.

10DQ logo

10DQ

Energy & Power

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

Capro-X logo

Capro-X

Food, Water, & Land

Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals

Ensovi logo

Ensovi

Manufacturing & Processing

Cofactor recycling platform for sustainable drug manufacturing

Building Envelope Materials logo

Building Envelope Materials

Infrastructure & Construction

Trace Matters logo

Trace Matters

Manufacturing & Processing

Trace Matters — is a technology startup focused on developing the next generation of mass spectrometry technologies for a variety of demanding applications. Trace Matters’ technologies include innovative mass spectrometry hardware, methods, and applications to solve the most demanding mass spectrometry analysis needs in various industries.

JURA Bio logo

JURA Bio

Food, Water, & Land

EarthEn logo

EarthEn

Energy & Power

Enabling electrification through CO₂-based thermodynamic cycle

Quantum New Energy logo

Quantum New Energy

Infrastructure & Construction

Quantum New Energy’s platform, EnerWisely, is a science-based solution that integrates IoT with data analytics and behavioral science. Quantum New Energy helps users transform their unused energy consumption data into personalized, actionable insights to maximize their monetary savings and reduce their environmental impacts.

Infranergy logo

Infranergy

Energy & Power

Encore CO2 logo

Encore CO2

Manufacturing & Processing

Converting captured CO₂ into valuable industrial molecules

Wootz logo

Wootz

Manufacturing & Processing

Carbon nanotube supermaterials to replace or augment traditional metallic conductors

Provocative logo

Provocative

Manufacturing & Processing

Replacing data centers’ cooling systems with carbon capture

Enersion logo

Enersion

Energy & Power

PolyJoule logo

PolyJoule

Energy & Power

PolyJoule — develops low-cost, high-power energy storage designed to strengthen the power grid.

Kauel logo

Kauel

Energy & Power

Software that detects industrial threats to prevent environmental risks and catastrophes

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

Kuva Systems logo

Kuva Systems

Manufacturing & Processing

Made of Air logo

Made of Air

Manufacturing & Processing

SBD Technologies logo

SBD Technologies

Transportation & Logistics

Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management

Vertical Semiconductor logo

Vertical Semiconductor

Energy & Power

Power supply units designed to unleash the full potential of AI & HPC

Nth Cycle logo

Nth Cycle

Manufacturing & Processing

Using electro-extraction to recover production-grade critical minerals from e-waste, low-grade ore, and mine tailings

Phlair logo

Phlair

Manufacturing & Processing

Renewable-energy-powered DAC system using an electrochemical process for acid and base generation

Energy Intelligence logo

Energy Intelligence

Energy & Power

Energy Intelligence — develops ultra-compact energy harvesting systems that are installed on roads to turn the motion of vehicles into electricity.

M2X Energy logo

M2X Energy

Manufacturing & Processing

Trace Matters logo

Trace Matters

Manufacturing & Processing

Trace Matters — is a technology startup focused on developing the next generation of mass spectrometry technologies for a variety of demanding applications. Trace Matters’ technologies include innovative mass spectrometry hardware, methods, and applications to solve the most demanding mass spectrometry analysis needs in various industries.

JURA Bio logo

JURA Bio

Food, Water, & Land

EarthEn logo

EarthEn

Energy & Power

Enabling electrification through CO₂-based thermodynamic cycle

Quantum New Energy logo

Quantum New Energy

Infrastructure & Construction

Quantum New Energy’s platform, EnerWisely, is a science-based solution that integrates IoT with data analytics and behavioral science. Quantum New Energy helps users transform their unused energy consumption data into personalized, actionable insights to maximize their monetary savings and reduce their environmental impacts.

Infranergy logo

Infranergy

Energy & Power

Encore CO2 logo

Encore CO2

Manufacturing & Processing

Converting captured CO₂ into valuable industrial molecules

Wootz logo

Wootz

Manufacturing & Processing

Carbon nanotube supermaterials to replace or augment traditional metallic conductors

Provocative logo

Provocative

Manufacturing & Processing

Replacing data centers’ cooling systems with carbon capture

Enersion logo

Enersion

Energy & Power

PolyJoule logo

PolyJoule

Energy & Power

PolyJoule — develops low-cost, high-power energy storage designed to strengthen the power grid.

Kauel logo

Kauel

Energy & Power

Software that detects industrial threats to prevent environmental risks and catastrophes

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

Kuva Systems logo

Kuva Systems

Manufacturing & Processing

Made of Air logo

Made of Air

Manufacturing & Processing

SBD Technologies logo

SBD Technologies

Transportation & Logistics

Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management

Vertical Semiconductor logo

Vertical Semiconductor

Energy & Power

Power supply units designed to unleash the full potential of AI & HPC

Nth Cycle logo

Nth Cycle

Manufacturing & Processing

Using electro-extraction to recover production-grade critical minerals from e-waste, low-grade ore, and mine tailings

Phlair logo

Phlair

Manufacturing & Processing

Renewable-energy-powered DAC system using an electrochemical process for acid and base generation

Energy Intelligence logo

Energy Intelligence

Energy & Power

Energy Intelligence — develops ultra-compact energy harvesting systems that are installed on roads to turn the motion of vehicles into electricity.

M2X Energy logo

M2X Energy

Manufacturing & Processing

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