Helping climatetech startupsTransformindustry faster

change:WATER Labs
Food, Water, & Land
Low-cost, compact, waterless toilet for non-sewered households and communities

Cellsense
Manufacturing & Processing

Circular Materials
Manufacturing & Processing
Critical raw materials from industrial wastewater

American Battery Technology Company
Energy & Power
Advanced technology, first-mover lithium-ion battery recycling and primary battery metal extraction company

Planetary Hydrogen
Manufacturing & Processing

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

Sunwealth
Energy & Power

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

Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis

Spec Sensors LLC
Energy & Power

WattGlass
Energy & Power

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

BlakBear
Food, Water, & Land

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

change:WATER Labs
Food, Water, & Land
Low-cost, compact, waterless toilet for non-sewered households and communities

Cellsense
Manufacturing & Processing

Circular Materials
Manufacturing & Processing
Critical raw materials from industrial wastewater

American Battery Technology Company
Energy & Power
Advanced technology, first-mover lithium-ion battery recycling and primary battery metal extraction company

Planetary Hydrogen
Manufacturing & Processing

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

Sunwealth
Energy & Power

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

Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis

Spec Sensors LLC
Energy & Power

WattGlass
Energy & Power

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

BlakBear
Food, Water, & Land

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

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
Infrastructure & Construction
Reducing HVAC energy use and repair costs for small commercial buildings

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
Manufacturing & Processing

GS Vortex Systems
Food, Water, & Land
Hydrodynamic flow technology reducing flow resistance through pipes

Renewell Energy
Energy & Power
Gravitational energy storage

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

Pre Framing Corp
Infrastructure & Construction

VentureWell

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

Made of Air
Manufacturing & Processing

SteamIQ
Manufacturing & Processing

FAST Metals
Manufacturing & Processing
Hydrometallurgical-recovery process for extracting rare-earth elements from industrial tailings

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
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
Infrastructure & Construction
Geothermal heating and cooling systems for homes

Intention
Energy & Power
Climate-infrastructure-investment platform

AllSpice.io
Infrastructure & Construction
A collaboration hub for hardware teams with revision control, design reviews, and releases

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
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
Infrastructure & Construction
Reducing HVAC energy use and repair costs for small commercial buildings

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
Manufacturing & Processing

GS Vortex Systems
Food, Water, & Land
Hydrodynamic flow technology reducing flow resistance through pipes

Renewell Energy
Energy & Power
Gravitational energy storage

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

Pre Framing Corp
Infrastructure & Construction

VentureWell

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

Made of Air
Manufacturing & Processing

SteamIQ
Manufacturing & Processing

FAST Metals
Manufacturing & Processing
Hydrometallurgical-recovery process for extracting rare-earth elements from industrial tailings

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
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
Infrastructure & Construction
Geothermal heating and cooling systems for homes

Intention
Energy & Power
Climate-infrastructure-investment platform

AllSpice.io
Infrastructure & Construction
A collaboration hub for hardware teams with revision control, design reviews, and releases

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.




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.
Our Startups Have Raised Over $0B
All-time
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Currently home to
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Countries Where
Startups Operate
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New Jobs Created by Our Members, and Counting
Startups bring the breakthroughs. Corporate partners bring the scale, infrastructure, expertise, and capital to make them matter.
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.


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.

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.

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






















