Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
MagDrive Technologies Inc. logo

MagDrive Technologies Inc.

Manufacturing & Processing

Eliminating fugitive emissions and delivering zero-leak performance and durability

Upstream Tech logo

Upstream Tech

Energy & Power

Software that expands access to environmental data through remote monitoring and reporting for seasonal forecasts

GeoFuels logo

GeoFuels

Energy & Power

We are positioned to solve the problem of clean hydrogen not competing economically against alternatives. Through geothermal power and methane pyrolysis we believe we have the solution.

rStream logo

rStream

Manufacturing & Processing

Autonomous waste-sorting system for non-industrial settings with critical waste volumes

EcoForge logo

EcoForge

Food, Water, & Land

-- is a building material technology company developing affordable, high-performance building materials from local agricultural residues, replacing energy-intensive, fossil-based materials. This sustainable approach increases resilience to climate and supply chain risks, supports local farming, and job creation. Moreover, EcoForge’s toxic chemical-free material recipe promotes healthier indoor environments.

7Analytics logo

7Analytics

Infrastructure & Construction

7Analytics is a climate-tech startup developing superior high-precision predictive models for floods, enhancing urban resilience to climate change. Our mission is to empower asset owners, insurance companies and governance with the tools needed to mitigate the impacts of extreme weather events.

M2X Energy logo

M2X Energy

Manufacturing & Processing

Arbon logo

Arbon

Energy & Power

Low energy humidity-driven modular tech capturing and releasing CO2 for practical decarbonization

Diffraqtion logo

Diffraqtion

Manufacturing & Processing

Machine Vision at the Quantum Limit

GS Vortex Systems logo

GS Vortex Systems

Food, Water, & Land

Hydrodynamic flow technology reducing flow resistance through pipes

Canetia Analytics logo

Canetia Analytics

Transportation & Logistics

Canetia Analytics — monitors structures and their natural vibration signature through IoT, artificial intelligence and machine learning to enable a building to be seen from the inside to the outside, continuously and automatically.

Molecule Works Inc. logo

Molecule Works Inc.

Manufacturing & Processing

We are developing a low-cost (less than $100/ton) solid sorbent DAC system based on our proprietary reactor/contactor configuration. This design yields very high productivity by delivering low pressure drop, very high heat and mass transfer rates and high sorbent loading. Heat is provided through ls closed loop low temp hot water system so that no steam is needed. After initial charge, no water is consumed. Regeneration is achieved in 20 to 30 minutes.

Patch logo

Patch

Transportation & Logistics

Prophet AI logo

Prophet AI

Food, Water, & Land

AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions

MCatalysis logo

MCatalysis

Manufacturing & Processing

Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology

Corrolytics logo

Corrolytics

Energy & Power

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

SiTration logo

SiTration

Manufacturing & Processing

SiTration — is developing a novel membrane filtration technology that combines durability and performance at low cost to enable highly efficient separations in today’s mega-industries.

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

Feon Energy, Inc. (eLyte Technology) logo

Feon Energy, Inc. (eLyte Technology)

Energy & Power

eLyte — is commercializing next-gen battery technology for electric vehicles and other applications.

Resonant Energy logo

Resonant Energy

Energy & Power

MagDrive Technologies Inc. logo

MagDrive Technologies Inc.

Manufacturing & Processing

Eliminating fugitive emissions and delivering zero-leak performance and durability

Upstream Tech logo

Upstream Tech

Energy & Power

Software that expands access to environmental data through remote monitoring and reporting for seasonal forecasts

GeoFuels logo

GeoFuels

Energy & Power

We are positioned to solve the problem of clean hydrogen not competing economically against alternatives. Through geothermal power and methane pyrolysis we believe we have the solution.

rStream logo

rStream

Manufacturing & Processing

Autonomous waste-sorting system for non-industrial settings with critical waste volumes

EcoForge logo

EcoForge

Food, Water, & Land

-- is a building material technology company developing affordable, high-performance building materials from local agricultural residues, replacing energy-intensive, fossil-based materials. This sustainable approach increases resilience to climate and supply chain risks, supports local farming, and job creation. Moreover, EcoForge’s toxic chemical-free material recipe promotes healthier indoor environments.

7Analytics logo

7Analytics

Infrastructure & Construction

7Analytics is a climate-tech startup developing superior high-precision predictive models for floods, enhancing urban resilience to climate change. Our mission is to empower asset owners, insurance companies and governance with the tools needed to mitigate the impacts of extreme weather events.

M2X Energy logo

M2X Energy

Manufacturing & Processing

Arbon logo

Arbon

Energy & Power

Low energy humidity-driven modular tech capturing and releasing CO2 for practical decarbonization

Diffraqtion logo

Diffraqtion

Manufacturing & Processing

Machine Vision at the Quantum Limit

GS Vortex Systems logo

GS Vortex Systems

Food, Water, & Land

Hydrodynamic flow technology reducing flow resistance through pipes

Canetia Analytics logo

Canetia Analytics

Transportation & Logistics

Canetia Analytics — monitors structures and their natural vibration signature through IoT, artificial intelligence and machine learning to enable a building to be seen from the inside to the outside, continuously and automatically.

Molecule Works Inc. logo

Molecule Works Inc.

Manufacturing & Processing

We are developing a low-cost (less than $100/ton) solid sorbent DAC system based on our proprietary reactor/contactor configuration. This design yields very high productivity by delivering low pressure drop, very high heat and mass transfer rates and high sorbent loading. Heat is provided through ls closed loop low temp hot water system so that no steam is needed. After initial charge, no water is consumed. Regeneration is achieved in 20 to 30 minutes.

Patch logo

Patch

Transportation & Logistics

Prophet AI logo

Prophet AI

Food, Water, & Land

AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions

MCatalysis logo

MCatalysis

Manufacturing & Processing

Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology

Corrolytics logo

Corrolytics

Energy & Power

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

SiTration logo

SiTration

Manufacturing & Processing

SiTration — is developing a novel membrane filtration technology that combines durability and performance at low cost to enable highly efficient separations in today’s mega-industries.

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

Feon Energy, Inc. (eLyte Technology) logo

Feon Energy, Inc. (eLyte Technology)

Energy & Power

eLyte — is commercializing next-gen battery technology for electric vehicles and other applications.

Resonant Energy logo

Resonant Energy

Energy & Power

Hicor Technologies Inc. logo

Hicor Technologies Inc.

Energy & Power

Moonshot Compost logo

Moonshot Compost

Manufacturing & Processing

Moonshot Compost — collects and consolidates food waste for composting from businesses and residents, with a focus on data creation and management.

Pre Framing Corp logo

Pre Framing Corp

Infrastructure & Construction

Nebumi logo

Nebumi

Energy & Power

Emissions intelligence platform, monitoring pollution with satellite data and AI

Circulus Air logo

Circulus Air

Infrastructure & Construction

Clean air systems to directly remove harmful gases and pollutants

Resollant logo

Resollant

Manufacturing & Processing

Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale

Understory logo

Understory

Infrastructure & Construction

Weather hardware and analytics

Matterworks logo

Matterworks

Manufacturing & Processing

Enabling metabolomics assays that are fast, broad, and can characterize diverse chemical classes with a single setup

Alloy Enterprises logo

Alloy Enterprises

Manufacturing & Processing

Alloy Enterprises — is developing a new manufacturing method to change the way the world makes aluminum parts.

Foray Bioscience logo

Foray Bioscience

Manufacturing & Processing

Full Cycle Bioplastics logo

Full Cycle Bioplastics

Manufacturing & Processing

Phlair logo

Phlair

Manufacturing & Processing

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

Stepwise logo

Stepwise

Energy & Power

Stepwise — makes home electrification effortless and affordable by reducing the infrastructure upgrades costs associated with installations and helping homeowners save money on their electricity bills through energy management.

Hygen logo

Hygen

Energy & Power

Tato Labs logo

Tato Labs

Manufacturing & Processing

Bioplastic products and packaging solutions made from potato starch

NeuraliX logo

NeuraliX

Energy & Power

AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors

Applied Bioplastics logo

Applied Bioplastics

Food, Water, & Land

Applied Bioplastics — is commercializing plant-based polymers that are far healthier and more sustainable, at competitive pricing to their petrochemical-based analogues

CalWave Power Technologies logo

CalWave Power Technologies

Energy & Power

CalWave — CalWave’s mission is to unlock the vast and steady carbon-free power from ocean waves, bringing superior power-generating technology to market with a global reach. CalWave’s proprietary wave energy converter technology achieves high performance while surviving storms and extreme conditions.

Searover Robotics and Software logo

Searover Robotics and Software

Manufacturing & Processing

WeaveGrid logo

WeaveGrid

Energy & Power

WeaveGrid — is a software company that enables wide scale electric vehicle adoption by solving one of the most critical emerging electrification challenges — connecting a growing wave of electric vehicles to an electric grid that was not designed to support the high power needs of widespread charging.

Hicor Technologies Inc. logo

Hicor Technologies Inc.

Energy & Power

Moonshot Compost logo

Moonshot Compost

Manufacturing & Processing

Moonshot Compost — collects and consolidates food waste for composting from businesses and residents, with a focus on data creation and management.

Pre Framing Corp logo

Pre Framing Corp

Infrastructure & Construction

Nebumi logo

Nebumi

Energy & Power

Emissions intelligence platform, monitoring pollution with satellite data and AI

Circulus Air logo

Circulus Air

Infrastructure & Construction

Clean air systems to directly remove harmful gases and pollutants

Resollant logo

Resollant

Manufacturing & Processing

Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale

Understory logo

Understory

Infrastructure & Construction

Weather hardware and analytics

Matterworks logo

Matterworks

Manufacturing & Processing

Enabling metabolomics assays that are fast, broad, and can characterize diverse chemical classes with a single setup

Alloy Enterprises logo

Alloy Enterprises

Manufacturing & Processing

Alloy Enterprises — is developing a new manufacturing method to change the way the world makes aluminum parts.

Foray Bioscience logo

Foray Bioscience

Manufacturing & Processing

Full Cycle Bioplastics logo

Full Cycle Bioplastics

Manufacturing & Processing

Phlair logo

Phlair

Manufacturing & Processing

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

Stepwise logo

Stepwise

Energy & Power

Stepwise — makes home electrification effortless and affordable by reducing the infrastructure upgrades costs associated with installations and helping homeowners save money on their electricity bills through energy management.

Hygen logo

Hygen

Energy & Power

Tato Labs logo

Tato Labs

Manufacturing & Processing

Bioplastic products and packaging solutions made from potato starch

NeuraliX logo

NeuraliX

Energy & Power

AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors

Applied Bioplastics logo

Applied Bioplastics

Food, Water, & Land

Applied Bioplastics — is commercializing plant-based polymers that are far healthier and more sustainable, at competitive pricing to their petrochemical-based analogues

CalWave Power Technologies logo

CalWave Power Technologies

Energy & Power

CalWave — CalWave’s mission is to unlock the vast and steady carbon-free power from ocean waves, bringing superior power-generating technology to market with a global reach. CalWave’s proprietary wave energy converter technology achieves high performance while surviving storms and extreme conditions.

Searover Robotics and Software logo

Searover Robotics and Software

Manufacturing & Processing

WeaveGrid logo

WeaveGrid

Energy & Power

WeaveGrid — is a software company that enables wide scale electric vehicle adoption by solving one of the most critical emerging electrification challenges — connecting a growing wave of electric vehicles to an electric grid that was not designed to support the high power needs of widespread charging.

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