Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
change:WATER Labs logo

change:WATER Labs

Food, Water, & Land

Low-cost, compact, waterless toilet for non-sewered households and communities

Cellsense logo

Cellsense

Manufacturing & Processing

Circular Materials logo

Circular Materials

Manufacturing & Processing

Critical raw materials from industrial wastewater

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

Planetary Hydrogen logo

Planetary Hydrogen

Manufacturing & Processing

Independence Coffee Company logo

Independence Coffee Company

Food, Water, & Land

Our new 100% Compostable Coffee Pods are made with no plastic. They are Fair Trade, Organic and are produced from the best coffee growing regions in the world. Our focus on reduced environmental impacts and 'give-backs' to great local and national causes runs in our DNA. We partner with large corporate, grocery and food service providers to not only distribute our products, but also educate consumers on the importance of sustainable cpg packaging for our earth's future.

Reverse Energy Solutions logo

Reverse Energy Solutions

Transportation & Logistics

Our startup implements innovative mobile solutions for solar panel recycling, drastically reducing logistic costs by 90% through streamlined collection and transportation processes.

DASH Clean Energy logo

DASH Clean Energy

Energy & Power

Dash Clean Energy — has developed a hydrogen simulation tool that can be used by developers to evaluate existing and planned wind and solar projects and how to manage and produce hydrogen cost competitively with existing hydrogen production pathways.

Exakom logo

Exakom

Manufacturing & Processing

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

Sunwealth logo

Sunwealth

Energy & Power

NW NA logo

NW NA

Energy & Power

NW NA — is an independent operator of extremely high-power electric charging stations (IECharge®), distributed electricity storage units (JBox®), and new micro-electricity production units (Tikaz®).

QuantAQ logo

QuantAQ

Infrastructure & Construction

Air quality-monitoring networks that combine IoT hardware, machine learning, and user-friendly software design

Licube logo

Licube

Manufacturing & Processing

Sustainable lithium recovery through electrodialysis

Spec Sensors LLC logo

Spec Sensors LLC

Energy & Power

WattGlass logo

WattGlass

Energy & Power

ETAK logo

ETAK

ETAK transforms waste into clean energy. Our modular technology converts unsorted municipal and industrial waste into high-calorific gas, offering a decentralized, 24/7 alternative to fossil fuels and traditional incineration.

H2Pro logo

H2Pro

Energy & Power

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

BlakBear logo

BlakBear

Food, Water, & Land

LineVision logo

LineVision

Energy & Power

LineVision — combines advanced non-contact sensor and analytics technologies to give utilities more reliability, capacity, flexibility and resiliency on their transmission lines.

Catalyxx logo

Catalyxx

Manufacturing & Processing

Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals

change:WATER Labs logo

change:WATER Labs

Food, Water, & Land

Low-cost, compact, waterless toilet for non-sewered households and communities

Cellsense logo

Cellsense

Manufacturing & Processing

Circular Materials logo

Circular Materials

Manufacturing & Processing

Critical raw materials from industrial wastewater

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

Planetary Hydrogen logo

Planetary Hydrogen

Manufacturing & Processing

Independence Coffee Company logo

Independence Coffee Company

Food, Water, & Land

Our new 100% Compostable Coffee Pods are made with no plastic. They are Fair Trade, Organic and are produced from the best coffee growing regions in the world. Our focus on reduced environmental impacts and 'give-backs' to great local and national causes runs in our DNA. We partner with large corporate, grocery and food service providers to not only distribute our products, but also educate consumers on the importance of sustainable cpg packaging for our earth's future.

Reverse Energy Solutions logo

Reverse Energy Solutions

Transportation & Logistics

Our startup implements innovative mobile solutions for solar panel recycling, drastically reducing logistic costs by 90% through streamlined collection and transportation processes.

DASH Clean Energy logo

DASH Clean Energy

Energy & Power

Dash Clean Energy — has developed a hydrogen simulation tool that can be used by developers to evaluate existing and planned wind and solar projects and how to manage and produce hydrogen cost competitively with existing hydrogen production pathways.

Exakom logo

Exakom

Manufacturing & Processing

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

Sunwealth logo

Sunwealth

Energy & Power

NW NA logo

NW NA

Energy & Power

NW NA — is an independent operator of extremely high-power electric charging stations (IECharge®), distributed electricity storage units (JBox®), and new micro-electricity production units (Tikaz®).

QuantAQ logo

QuantAQ

Infrastructure & Construction

Air quality-monitoring networks that combine IoT hardware, machine learning, and user-friendly software design

Licube logo

Licube

Manufacturing & Processing

Sustainable lithium recovery through electrodialysis

Spec Sensors LLC logo

Spec Sensors LLC

Energy & Power

WattGlass logo

WattGlass

Energy & Power

ETAK logo

ETAK

ETAK transforms waste into clean energy. Our modular technology converts unsorted municipal and industrial waste into high-calorific gas, offering a decentralized, 24/7 alternative to fossil fuels and traditional incineration.

H2Pro logo

H2Pro

Energy & Power

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

BlakBear logo

BlakBear

Food, Water, & Land

LineVision logo

LineVision

Energy & Power

LineVision — combines advanced non-contact sensor and analytics technologies to give utilities more reliability, capacity, flexibility and resiliency on their transmission lines.

Catalyxx logo

Catalyxx

Manufacturing & Processing

Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals

Ignition Packaging logo

Ignition Packaging

About the Company Ignition Packaging is a biomaterials company developing scalable, cost-competitive alternatives to conventional petroleum-based foams. Ignition Packaging’s core technology transforms agricultural byproducts into a high-performance, biodegradable foam engineered […]

Monaire logo

Monaire

Infrastructure & Construction

Reducing HVAC energy use and repair costs for small commercial buildings

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.

Heartland Industries logo

Heartland Industries

Manufacturing & Processing

GS Vortex Systems logo

GS Vortex Systems

Food, Water, & Land

Hydrodynamic flow technology reducing flow resistance through pipes

Renewell Energy logo

Renewell Energy

Energy & Power

Gravitational energy storage

Transport Phenomena Technologies logo

Transport Phenomena Technologies

Manufacturing & Processing

Transport Phenomena Technologies — models software for thermal management of electronics.

Pre Framing Corp logo

Pre Framing Corp

Infrastructure & Construction

VentureWell logo

VentureWell

Carbon Upcycling Technologies logo

Carbon Upcycling Technologies

Manufacturing & Processing

Carbon Upcycling Technologies (Calgary, AB) is a circular decarbonization solution for hard-to-abate industries –- utilizing low-purity industrial CO2 and industrial by-products to decarbonize cement.

Katz Water Technologies logo

Katz Water Technologies

Energy & Power

Katz Water Technologies — recycles their customers’ waste water instead of disposing it and sells the components as valuable materials.

Made of Air logo

Made of Air

Manufacturing & Processing

SteamIQ logo

SteamIQ

Manufacturing & Processing

FAST Metals logo

FAST Metals

Manufacturing & Processing

Hydrometallurgical-recovery process for extracting rare-earth elements from industrial tailings

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

Fysikes Biosolutions logo

Fysikes Biosolutions

Energy & Power

Fysikes Biosolutions — develops renewable green fuels (methanol, ammonia, and naphtas) via the production of hydrogen and concentrated CO2 from direct air capture and industrial CO2 capture technologies.

Dandelion Energy logo

Dandelion Energy

Infrastructure & Construction

Geothermal heating and cooling systems for homes

Intention logo

Intention

Energy & Power

Climate-infrastructure-investment platform

AllSpice.io logo

AllSpice.io

Infrastructure & Construction

A collaboration hub for hardware teams with revision control, design reviews, and releases

Skytree logo

Skytree

Food, Water, & Land

Skytree — harnesses carbon through the power of decentralized direct air capture technology. They create one of the world’s smallest and simplest circular carbon solution to transform how food is grown to provide cleaner water.

Ignition Packaging logo

Ignition Packaging

About the Company Ignition Packaging is a biomaterials company developing scalable, cost-competitive alternatives to conventional petroleum-based foams. Ignition Packaging’s core technology transforms agricultural byproducts into a high-performance, biodegradable foam engineered […]

Monaire logo

Monaire

Infrastructure & Construction

Reducing HVAC energy use and repair costs for small commercial buildings

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.

Heartland Industries logo

Heartland Industries

Manufacturing & Processing

GS Vortex Systems logo

GS Vortex Systems

Food, Water, & Land

Hydrodynamic flow technology reducing flow resistance through pipes

Renewell Energy logo

Renewell Energy

Energy & Power

Gravitational energy storage

Transport Phenomena Technologies logo

Transport Phenomena Technologies

Manufacturing & Processing

Transport Phenomena Technologies — models software for thermal management of electronics.

Pre Framing Corp logo

Pre Framing Corp

Infrastructure & Construction

VentureWell logo

VentureWell

Carbon Upcycling Technologies logo

Carbon Upcycling Technologies

Manufacturing & Processing

Carbon Upcycling Technologies (Calgary, AB) is a circular decarbonization solution for hard-to-abate industries –- utilizing low-purity industrial CO2 and industrial by-products to decarbonize cement.

Katz Water Technologies logo

Katz Water Technologies

Energy & Power

Katz Water Technologies — recycles their customers’ waste water instead of disposing it and sells the components as valuable materials.

Made of Air logo

Made of Air

Manufacturing & Processing

SteamIQ logo

SteamIQ

Manufacturing & Processing

FAST Metals logo

FAST Metals

Manufacturing & Processing

Hydrometallurgical-recovery process for extracting rare-earth elements from industrial tailings

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

Fysikes Biosolutions logo

Fysikes Biosolutions

Energy & Power

Fysikes Biosolutions — develops renewable green fuels (methanol, ammonia, and naphtas) via the production of hydrogen and concentrated CO2 from direct air capture and industrial CO2 capture technologies.

Dandelion Energy logo

Dandelion Energy

Infrastructure & Construction

Geothermal heating and cooling systems for homes

Intention logo

Intention

Energy & Power

Climate-infrastructure-investment platform

AllSpice.io logo

AllSpice.io

Infrastructure & Construction

A collaboration hub for hardware teams with revision control, design reviews, and releases

Skytree logo

Skytree

Food, Water, & Land

Skytree — harnesses carbon through the power of decentralized direct air capture technology. They create one of the world’s smallest and simplest circular carbon solution to transform how food is grown to provide cleaner water.

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