Helping climatetech startupsTransformindustry faster
Embue
Infrastructure & Construction
FLITE Material Sciences
Manufacturing & Processing
Kula Bio
Energy & Power
Kula Bio — supercharges natural nitrogen-fixing microbes with renewable energy in order to deliver reliable, low-cost organic biofertilizers.
SICDrone
Transportation & Logistics
Anning Corporation
Energy & Power
Targeting iron-rich rocks to produce hydrogen
Onboard Data
Infrastructure & Construction
Onboard — offers software analytics for HVAC service providers.
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
Clean Crop Technologies
Food, Water, & Land
Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity
Ententia
Energy & Power
Trusted, scalable enterprise AI solutions that turn context into competitive advantage
TransOceans Clean Energy Risk, LLC
Energy & Power
Risk management solutions for global clean tech risk portfolios
Sunforge
Energy & Power
Sunforge — creates advanced Maximum Power Point Tracking (MPPT) solar charge controllers for off-grid applications. Its controllers are designed to extract the most power possible from your solar panels and maximize system up-time through the worst conditions.
Beantrust
Food, Water, & Land
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
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.
HarvestAi
Food, Water, & Land
Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning
Planetary Hydrogen
Manufacturing & Processing
GeoTeknica
Manufacturing & Processing
InventWood
Infrastructure & Construction
InventWood — offers MettleWood, a super-strong wood material (that's stronger than steel), a highly insulative wood material (as a green substitute for polystyrene) and even a transparent wood material.
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
Root AI
Food, Water, & Land
Embue
Infrastructure & Construction
FLITE Material Sciences
Manufacturing & Processing
Kula Bio
Energy & Power
Kula Bio — supercharges natural nitrogen-fixing microbes with renewable energy in order to deliver reliable, low-cost organic biofertilizers.
SICDrone
Transportation & Logistics
Anning Corporation
Energy & Power
Targeting iron-rich rocks to produce hydrogen
Onboard Data
Infrastructure & Construction
Onboard — offers software analytics for HVAC service providers.
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
Clean Crop Technologies
Food, Water, & Land
Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity
Ententia
Energy & Power
Trusted, scalable enterprise AI solutions that turn context into competitive advantage
TransOceans Clean Energy Risk, LLC
Energy & Power
Risk management solutions for global clean tech risk portfolios
Sunforge
Energy & Power
Sunforge — creates advanced Maximum Power Point Tracking (MPPT) solar charge controllers for off-grid applications. Its controllers are designed to extract the most power possible from your solar panels and maximize system up-time through the worst conditions.
Beantrust
Food, Water, & Land
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
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.
HarvestAi
Food, Water, & Land
Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning
Planetary Hydrogen
Manufacturing & Processing
GeoTeknica
Manufacturing & Processing
InventWood
Infrastructure & Construction
InventWood — offers MettleWood, a super-strong wood material (that's stronger than steel), a highly insulative wood material (as a green substitute for polystyrene) and even a transparent wood material.
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
Root AI
Food, Water, & Land
Alma Energy
Energy & Power
Geothermal exploration to deliver scaled renewable energy production at economic levels
Innoveering
Manufacturing & Processing
EQORE
EQORE is an end-to-end provider of intelligent and autonomous energy storage for commercial and industrial facilities, aimed at minimizing their electricity costs. By offering unprecedented ROIs, EQORE makes adding distributed storage to the grid financially attractive, promoting grid resilience while supporting businesses.
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.
ConnectDER
Energy & Power
ConnectDER — unlocks the massive potential of DERs by turning the meter socket into the utility’s all-in-one plug-in point for solar, storage, EVs, and beyond.
Adiabatic Materials
Manufacturing & Processing
Unlocking clean, affordable chemical production with electricity
Tato Labs
Manufacturing & Processing
Bioplastic products and packaging solutions made from potato starch
Reframe Systems
Infrastructure & Construction
Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories
SeaDeep
Transportation & Logistics
SeaDeep — revolutionizes underwater assessments with AI-powered subsea vision for inspecting marine environments and substructures in real-time and with high-fidelity using low-cost, off-the-shelf cameras.
Enerbrain
Infrastructure & Construction
eSki Watercraft
Energy & Power
Electric personal watercraft
Intention
Energy & Power
Climate-infrastructure-investment platform
Appollo Wind Technologies
Infrastructure & Construction
Mass Magnetics
Manufacturing & Processing
MECo specializes in the automated manufacture of structured functional materials for magnetic and electrochemical applications.
Capital Energy
Energy & Power
Helping climatetech companies translate complex work into compelling brands
ZwitterCo
Food, Water, & Land
Nanofiltration membranes for wastewater treatment with unprecedented fouling-resistance and size-selectivity.
WhaleSpotter
Transportation & Logistics
Thermal imaging and AI to prevent marine mammal strikes at sea
Freshr Technologies
Food, Water, & Land
Tomra Systems
Manufacturing & Processing
Hygen
Energy & Power
Alma Energy
Energy & Power
Geothermal exploration to deliver scaled renewable energy production at economic levels
Innoveering
Manufacturing & Processing
EQORE
EQORE is an end-to-end provider of intelligent and autonomous energy storage for commercial and industrial facilities, aimed at minimizing their electricity costs. By offering unprecedented ROIs, EQORE makes adding distributed storage to the grid financially attractive, promoting grid resilience while supporting businesses.
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.
ConnectDER
Energy & Power
ConnectDER — unlocks the massive potential of DERs by turning the meter socket into the utility’s all-in-one plug-in point for solar, storage, EVs, and beyond.
Adiabatic Materials
Manufacturing & Processing
Unlocking clean, affordable chemical production with electricity
Tato Labs
Manufacturing & Processing
Bioplastic products and packaging solutions made from potato starch
Reframe Systems
Infrastructure & Construction
Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories
SeaDeep
Transportation & Logistics
SeaDeep — revolutionizes underwater assessments with AI-powered subsea vision for inspecting marine environments and substructures in real-time and with high-fidelity using low-cost, off-the-shelf cameras.
Enerbrain
Infrastructure & Construction
eSki Watercraft
Energy & Power
Electric personal watercraft
Intention
Energy & Power
Climate-infrastructure-investment platform
Appollo Wind Technologies
Infrastructure & Construction
Mass Magnetics
Manufacturing & Processing
MECo specializes in the automated manufacture of structured functional materials for magnetic and electrochemical applications.
Capital Energy
Energy & Power
Helping climatetech companies translate complex work into compelling brands
ZwitterCo
Food, Water, & Land
Nanofiltration membranes for wastewater treatment with unprecedented fouling-resistance and size-selectivity.
WhaleSpotter
Transportation & Logistics
Thermal imaging and AI to prevent marine mammal strikes at sea
Freshr Technologies
Food, Water, & Land
Tomra Systems
Manufacturing & Processing
Hygen
Energy & Power
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
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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.
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Tap into deal flow with the world’s largest community of climate and energy startups.