Helping climatetech startupsTransformindustry faster
Decimetrix
Energy & Power
AI platform to help clients measure their carbon footprint
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
Skyre
Manufacturing & Processing
Sankofa Dynamics
Food, Water, & Land
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.
Sense Labs, Inc.
Infrastructure & Construction
The Sense Home Energy monitor tells you what devices in your home are on, and how much energy each is consuming.
Biospheric AI
Energy & Power
High-resolution, building-level energy demand forecasts for utilities and more
SensorEra
Food, Water, & Land
SensorEra — provides real time induced seismic monitoring service for unconventional oil and gas production, salt water disposal and carbon injection and sequestration for CCUS.
Moonflower Farms
Food, Water, & Land
Moonflower Technologies uses space age technology to solve real world problems.
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.
Emerald Cities Collaborative
Infrastructure & Construction
Trillium Brewing Company
Food, Water, & Land
SolarFi
Energy & Power
Privé is a unique and blissful experience for social-distanced gathering in a transparent house that combines the arts, renewable energy, and sustainability.
HEXAspec
Energy & Power
Thermal management solutions for semiconductor chips, enabling more powerful hardware
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.
Energy Well Texas
Energy & Power
Our mission is to strengthen communities by helping millions of people switch to fairer, more resilient, 100% clean energy.
CrowdComfort
Infrastructure & Construction
Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals
Beantrust
Food, Water, & Land
Paragon Pure
Food, Water, & Land
Decimetrix
Energy & Power
AI platform to help clients measure their carbon footprint
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
Skyre
Manufacturing & Processing
Sankofa Dynamics
Food, Water, & Land
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.
Sense Labs, Inc.
Infrastructure & Construction
The Sense Home Energy monitor tells you what devices in your home are on, and how much energy each is consuming.
Biospheric AI
Energy & Power
High-resolution, building-level energy demand forecasts for utilities and more
SensorEra
Food, Water, & Land
SensorEra — provides real time induced seismic monitoring service for unconventional oil and gas production, salt water disposal and carbon injection and sequestration for CCUS.
Moonflower Farms
Food, Water, & Land
Moonflower Technologies uses space age technology to solve real world problems.
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.
Emerald Cities Collaborative
Infrastructure & Construction
Trillium Brewing Company
Food, Water, & Land
SolarFi
Energy & Power
Privé is a unique and blissful experience for social-distanced gathering in a transparent house that combines the arts, renewable energy, and sustainability.
HEXAspec
Energy & Power
Thermal management solutions for semiconductor chips, enabling more powerful hardware
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.
Energy Well Texas
Energy & Power
Our mission is to strengthen communities by helping millions of people switch to fairer, more resilient, 100% clean energy.
CrowdComfort
Infrastructure & Construction
Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals
Beantrust
Food, Water, & Land
Paragon Pure
Food, Water, & Land
ALP Technologies
Energy & Power
Axiom Optics
Manufacturing & Processing
Axiom Optics — provides optical instrumentation for fundamental sciences (astronomy, physics, biology) and industrial quality control.
Coflux Purification, Inc
Food, Water, & Land
A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams
WIP International Services
Food, Water, & Land
WIP International Services LLC — works with partners around the world to deliver a renewable source of pure drinking water
Cellsense
Manufacturing & Processing
10DQ
Energy & Power
Battery tech for long-duration energy storage at lower costs and improved safety
Parasanti
Parasanti — is a data orchestration/edge computing firm, specializing in extreme operating environments within both the federal space and advanced energy solutions.
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.
Energy Dome
Energy & Power
EnergyDome — has ideated and patented a revolutionary technology for large-scale and long-duration energy storage: The CO2 Battery.
Green Path Strategies
Energy & Power
Nebumi
Energy & Power
Emissions intelligence platform, monitoring pollution with satellite data and AI
ATOM-X
Energy & Power
Transforming CO₂ into sustainable fuels like green methanol
JURA Bio
Food, Water, & Land
OhmConnect
Energy & Power
OhmConnect improve the lives of people and the health of the planet by reimagining the way we (collectively) use energy.
Maxwellian
Energy & Power
Maxwellian — empowers mobility, energy, and agricultural industries by providing autonomous sanitization and monitoring solutions using unique optical IoT technology to ensure data accessibility for safety and asset management.
FGC Plasma Solutions
Energy & Power
Sensai Analytics
Energy & Power
Sensai Analytics — is developing an enterprise AI platform that enables companies with limited machine learning expertise to build scalable and robust time series forecasting models.
ATS Energy
Energy & Power
Converting waste heat into power without any moving parts
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.
Thola
Energy & Power
On-demand marketplace for commercial building sustainability and safety management
ALP Technologies
Energy & Power
Axiom Optics
Manufacturing & Processing
Axiom Optics — provides optical instrumentation for fundamental sciences (astronomy, physics, biology) and industrial quality control.
Coflux Purification, Inc
Food, Water, & Land
A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams
WIP International Services
Food, Water, & Land
WIP International Services LLC — works with partners around the world to deliver a renewable source of pure drinking water
Cellsense
Manufacturing & Processing
10DQ
Energy & Power
Battery tech for long-duration energy storage at lower costs and improved safety
Parasanti
Parasanti — is a data orchestration/edge computing firm, specializing in extreme operating environments within both the federal space and advanced energy solutions.
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.
Energy Dome
Energy & Power
EnergyDome — has ideated and patented a revolutionary technology for large-scale and long-duration energy storage: The CO2 Battery.
Green Path Strategies
Energy & Power
Nebumi
Energy & Power
Emissions intelligence platform, monitoring pollution with satellite data and AI
ATOM-X
Energy & Power
Transforming CO₂ into sustainable fuels like green methanol
JURA Bio
Food, Water, & Land
OhmConnect
Energy & Power
OhmConnect improve the lives of people and the health of the planet by reimagining the way we (collectively) use energy.
Maxwellian
Energy & Power
Maxwellian — empowers mobility, energy, and agricultural industries by providing autonomous sanitization and monitoring solutions using unique optical IoT technology to ensure data accessibility for safety and asset management.
FGC Plasma Solutions
Energy & Power
Sensai Analytics
Energy & Power
Sensai Analytics — is developing an enterprise AI platform that enables companies with limited machine learning expertise to build scalable and robust time series forecasting models.
ATS Energy
Energy & Power
Converting waste heat into power without any moving parts
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.
Thola
Energy & Power
On-demand marketplace for commercial building sustainability and safety management
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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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.