Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
GreenLabs Recycling logo

GreenLabs Recycling

Manufacturing & Processing

Criaterra logo

Criaterra

10DQ logo

10DQ

Energy & Power

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

Revvit logo

Revvit

Infrastructure & Construction

Low-cost, simple EV charging at commercial, multifamily, fleet parking, and public properties

Quantum Diamond Technologies logo

Quantum Diamond Technologies

Manufacturing & Processing

Universal Matter Inc. logo

Universal Matter Inc.

Manufacturing & Processing

Producing graphene from carbon waste streams

Carbonext logo

Carbonext

Manufacturing & Processing

3D-graphene technology that develops integrated solutions with carbon-coated silicon anodes

RailState logo

RailState

Transportation & Logistics

RailState — answers an increasing demand among freight customers, commodity traders, financial analysts, and government agencies for more current and granular visibility on railway volumes, performance, and condition.

Global Algae Innovations logo

Global Algae Innovations

Transportation & Logistics

Global Algae Innovations — grows algae that capture CO2 from the atmosphere to produce protein and oil for food and industrial use.

Cala Systems logo

Cala Systems

Energy & Power

Intelligent heat-pump water heaters

ZwitterCo logo

ZwitterCo

Food, Water, & Land

Nanofiltration membranes for wastewater treatment with unprecedented fouling-resistance and size-selectivity.

Desktop Health logo

Desktop Health

Manufacturing & Processing

Desktop Health (formerly Beacon Bio) — is designing biodegradable and biomimetic tissue grafts using novel materials science and 3D printing technologies.

Hygen logo

Hygen

Energy & Power

Resolute Methane logo

Resolute Methane

Food, Water, & Land

Treating low-concentration methane emissions at the source by thermally oxidizing methane with a novel reactor design

ULTROGEN logo

ULTROGEN

Energy & Power

ULTROGEN: GIGAWATT-Scale Hydrogen Generator Technology at 90% Lower CAPEX $10B+ market cap opportunity for micro-scale hydrogen merchant plants in Oppty. Zones 50X more hydrogen from H2O electrolysis at 40%+ lower retail price & Zero CO2 emissions

Interface Polymers logo

Interface Polymers

Manufacturing & Processing

Electrona Robotics logo

Electrona Robotics

Manufacturing & Processing

Mars Materials logo

Mars Materials

Manufacturing & Processing

Converting CO₂ and biomass into acrylonitrile

Biosfera logo

Biosfera

Manufacturing & Processing

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

GreenLabs Recycling logo

GreenLabs Recycling

Manufacturing & Processing

Criaterra logo

Criaterra

10DQ logo

10DQ

Energy & Power

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

Revvit logo

Revvit

Infrastructure & Construction

Low-cost, simple EV charging at commercial, multifamily, fleet parking, and public properties

Quantum Diamond Technologies logo

Quantum Diamond Technologies

Manufacturing & Processing

Universal Matter Inc. logo

Universal Matter Inc.

Manufacturing & Processing

Producing graphene from carbon waste streams

Carbonext logo

Carbonext

Manufacturing & Processing

3D-graphene technology that develops integrated solutions with carbon-coated silicon anodes

RailState logo

RailState

Transportation & Logistics

RailState — answers an increasing demand among freight customers, commodity traders, financial analysts, and government agencies for more current and granular visibility on railway volumes, performance, and condition.

Global Algae Innovations logo

Global Algae Innovations

Transportation & Logistics

Global Algae Innovations — grows algae that capture CO2 from the atmosphere to produce protein and oil for food and industrial use.

Cala Systems logo

Cala Systems

Energy & Power

Intelligent heat-pump water heaters

ZwitterCo logo

ZwitterCo

Food, Water, & Land

Nanofiltration membranes for wastewater treatment with unprecedented fouling-resistance and size-selectivity.

Desktop Health logo

Desktop Health

Manufacturing & Processing

Desktop Health (formerly Beacon Bio) — is designing biodegradable and biomimetic tissue grafts using novel materials science and 3D printing technologies.

Hygen logo

Hygen

Energy & Power

Resolute Methane logo

Resolute Methane

Food, Water, & Land

Treating low-concentration methane emissions at the source by thermally oxidizing methane with a novel reactor design

ULTROGEN logo

ULTROGEN

Energy & Power

ULTROGEN: GIGAWATT-Scale Hydrogen Generator Technology at 90% Lower CAPEX $10B+ market cap opportunity for micro-scale hydrogen merchant plants in Oppty. Zones 50X more hydrogen from H2O electrolysis at 40%+ lower retail price & Zero CO2 emissions

Interface Polymers logo

Interface Polymers

Manufacturing & Processing

Electrona Robotics logo

Electrona Robotics

Manufacturing & Processing

Mars Materials logo

Mars Materials

Manufacturing & Processing

Converting CO₂ and biomass into acrylonitrile

Biosfera logo

Biosfera

Manufacturing & Processing

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

M2X Energy logo

M2X Energy

Manufacturing & Processing

Realizse logo

Realizse

Energy & Power

Tokenization and product verification for circularity, energy, and the real estate markets

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.

Blue Atlas Robotics logo

Blue Atlas Robotics

Manufacturing & Processing

A&I Power Group logo

A&I Power Group

Energy & Power

Electricity-generation systems that convert electromagnetic energy into electrical potential

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.

Varea Energy logo

Varea Energy

Energy & Power

Varea Energy — aims to help enable the world’s transition to an energy-efficient and sustainable future by rooting out inefficient waste, water, and energy systems to increase sustainability and decrease operational costs for commercial facilities.

Corrolytics logo

Corrolytics

Energy & Power

Patented corrosion intelligence platform delivering near real-time corrosion detection and actionable insights

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.

Manatee Energy logo

Manatee Energy

Infrastructure & Construction

Rigorous and automated system design for affordable home heat pumps

NOC Energy logo

NOC Energy

Energy & Power

Decarbonizing industrial heat with power-to-heat and power-to-power solutions

Diffraqtion logo

Diffraqtion

Manufacturing & Processing

Machine Vision at the Quantum Limit

Tagup logo

Tagup

Manufacturing & Processing

Tagup — has developed new machine learning methods and a software platform to predict industrial equipment failure, making physical infrastructure safer and more reliable.

Axis Sky Renewables logo

Axis Sky Renewables

Energy & Power

-- creates innovative wind solutions, specializing in vertical axis wind turbines. Its cutting-edge technology is less expensive than traditional wind turbines to produce, deploy and maintain while still producing reliable renewable energy.

Planetary Hydrogen logo

Planetary Hydrogen

Manufacturing & Processing

CarbonQuest logo

CarbonQuest

Infrastructure & Construction

Clean Power logo

Clean Power

Energy & Power

Florrent logo

Florrent

Food, Water, & Land

High-energy-density supercapacitors for energy storage, made from domestic biomass waste

Browning the Green Space logo

Browning the Green Space

Food, Water, & Land

Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities

Arista Solutions logo

Arista Solutions

M2X Energy logo

M2X Energy

Manufacturing & Processing

Realizse logo

Realizse

Energy & Power

Tokenization and product verification for circularity, energy, and the real estate markets

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.

Blue Atlas Robotics logo

Blue Atlas Robotics

Manufacturing & Processing

A&I Power Group logo

A&I Power Group

Energy & Power

Electricity-generation systems that convert electromagnetic energy into electrical potential

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.

Varea Energy logo

Varea Energy

Energy & Power

Varea Energy — aims to help enable the world’s transition to an energy-efficient and sustainable future by rooting out inefficient waste, water, and energy systems to increase sustainability and decrease operational costs for commercial facilities.

Corrolytics logo

Corrolytics

Energy & Power

Patented corrosion intelligence platform delivering near real-time corrosion detection and actionable insights

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.

Manatee Energy logo

Manatee Energy

Infrastructure & Construction

Rigorous and automated system design for affordable home heat pumps

NOC Energy logo

NOC Energy

Energy & Power

Decarbonizing industrial heat with power-to-heat and power-to-power solutions

Diffraqtion logo

Diffraqtion

Manufacturing & Processing

Machine Vision at the Quantum Limit

Tagup logo

Tagup

Manufacturing & Processing

Tagup — has developed new machine learning methods and a software platform to predict industrial equipment failure, making physical infrastructure safer and more reliable.

Axis Sky Renewables logo

Axis Sky Renewables

Energy & Power

-- creates innovative wind solutions, specializing in vertical axis wind turbines. Its cutting-edge technology is less expensive than traditional wind turbines to produce, deploy and maintain while still producing reliable renewable energy.

Planetary Hydrogen logo

Planetary Hydrogen

Manufacturing & Processing

CarbonQuest logo

CarbonQuest

Infrastructure & Construction

Clean Power logo

Clean Power

Energy & Power

Florrent logo

Florrent

Food, Water, & Land

High-energy-density supercapacitors for energy storage, made from domestic biomass waste

Browning the Green Space logo

Browning the Green Space

Food, Water, & Land

Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities

Arista Solutions logo

Arista Solutions

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