Helping entrepreneursTransformindustry faster
They scale when entire ecosystems move together: founders, corporates, capital, policy, and communities, united by a shared purpose of propelling groundbreaking technologies to market, at the pace the world requires.
Transforming the systems that power, move, feed, and connect the world is the work of our time, and startups hold the key.
Greentown is a 501(c)(3) non-profit organization
NeuroBionics
Manufacturing & Processing
Sustainability-focused device for minimally-invasive endovascular deep-brain stimulation for stroke rehabilitation
EarthEn
Energy & Power
Enabling electrification through CO₂-based thermodynamic cycle
PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells
Terralytiq
Manufacturing & Processing
Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon
Agrilab Technologies Inc.
Food, Water, & Land
Modular compost-aeration and heat-recovery systems
Innovator Energy
Energy & Power
Developing and deploying solutions in cooling, heating, and heat transfer
Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power
Amplified Industries
Infrastructure & Construction
AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues
Prophet AI
Food, Water, & Land
AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions
Imperium Technologies
Energy & Power
Reducing industrial heating emissions with electrochemical processes
Sora Fuel Corporation
Transportation & Logistics
Cost-effective sustainable aviation fuel
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
Monaire
Infrastructure & Construction
Reducing HVAC energy use and repair costs for small commercial buildings
Electric Hydrogen
Energy & Power
Manufactureing the world’s most powerful electrolyzers to produce the lowest cost clean hydrogen
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
10DQ
Energy & Power
Battery tech for long-duration energy storage at lower costs and improved safety
Packwise
Manufacturing & Processing
IIoT sensors combined with a software and analytics platform to optimize industrial supply chains
Resollant
Manufacturing & Processing
Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale
Vecarius
Infrastructure & Construction
Heat-to-electricity technology to boost energy efficiency in mass markets
Rafi Properties
Infrastructure & Construction
NeuroBionics
Manufacturing & Processing
Sustainability-focused device for minimally-invasive endovascular deep-brain stimulation for stroke rehabilitation
EarthEn
Energy & Power
Enabling electrification through CO₂-based thermodynamic cycle
PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells
Terralytiq
Manufacturing & Processing
Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon
Agrilab Technologies Inc.
Food, Water, & Land
Modular compost-aeration and heat-recovery systems
Innovator Energy
Energy & Power
Developing and deploying solutions in cooling, heating, and heat transfer
Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power
Amplified Industries
Infrastructure & Construction
AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues
Prophet AI
Food, Water, & Land
AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions
Imperium Technologies
Energy & Power
Reducing industrial heating emissions with electrochemical processes
Sora Fuel Corporation
Transportation & Logistics
Cost-effective sustainable aviation fuel
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
Monaire
Infrastructure & Construction
Reducing HVAC energy use and repair costs for small commercial buildings
Electric Hydrogen
Energy & Power
Manufactureing the world’s most powerful electrolyzers to produce the lowest cost clean hydrogen
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
10DQ
Energy & Power
Battery tech for long-duration energy storage at lower costs and improved safety
Packwise
Manufacturing & Processing
IIoT sensors combined with a software and analytics platform to optimize industrial supply chains
Resollant
Manufacturing & Processing
Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale
Vecarius
Infrastructure & Construction
Heat-to-electricity technology to boost energy efficiency in mass markets
Rafi Properties
Infrastructure & Construction
Manatee Energy
Infrastructure & Construction
Rigorous and automated system design for affordable home heat pumps
Vertical Semiconductor
Energy & Power
Power supply units designed to unleash the full potential of AI & HPC
Saint-Gobain (Member Account)
Infrastructure & Construction
Worldwide leader in light and sustainable construction
ONEPREDICT
Manufacturing & Processing
Predicting and diagnosing the status of key industrial assets for the energy and manufacturing industries
Respire Energy
Energy & Power
Safe, low-cost, and long-duration metal-air battery designed for microgrids
AllSpice.io
Infrastructure & Construction
A collaboration hub for hardware teams with revision control, design reviews, and releases
Octavia Carbon Co
Manufacturing & Processing
Geothermal heat to capture and mineralize CO₂
Kauel
Energy & Power
Software that detects industrial threats to prevent environmental risks and catastrophes
Trellis Air
Infrastructure & Construction
Membrane-based dehumidifiers that are vastly more energy-efficient than desiccant wheels and standalone dehumidifiers
Kausalyze
Manufacturing & Processing
True root-cause analysis for chemicals, energy, and pharmaceutical companies
Infinite Foundry
Manufacturing & Processing
Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability
Mithril Technologies
Infrastructure & Construction
Reshapable reflectors for advanced antennas & radars for space-based earth and severe weather monitoring
Datavedik
Energy & Power
Addressing complex optimization challenges in the energy industry
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
Thola
Energy & Power
On-demand marketplace for commercial building sustainability and safety management
Zero Homes
Infrastructure & Construction
Automated assessment, design, and procurement platform for residential building retrofits
NONA Technologies
Food, Water, & Land
Desalinating brackish water with 60% less electricity, fewer chemical inputs, and less downtime
Dottir Labs
Food, Water, & Land
Sensor technology that provides real-time, detailed chemical analysis of water
Alma Energy
Energy & Power
Geothermal exploration to deliver scaled renewable energy production at economic levels
Manatee Energy
Infrastructure & Construction
Rigorous and automated system design for affordable home heat pumps
Vertical Semiconductor
Energy & Power
Power supply units designed to unleash the full potential of AI & HPC
Saint-Gobain (Member Account)
Infrastructure & Construction
Worldwide leader in light and sustainable construction
ONEPREDICT
Manufacturing & Processing
Predicting and diagnosing the status of key industrial assets for the energy and manufacturing industries
Respire Energy
Energy & Power
Safe, low-cost, and long-duration metal-air battery designed for microgrids
AllSpice.io
Infrastructure & Construction
A collaboration hub for hardware teams with revision control, design reviews, and releases
Octavia Carbon Co
Manufacturing & Processing
Geothermal heat to capture and mineralize CO₂
Kauel
Energy & Power
Software that detects industrial threats to prevent environmental risks and catastrophes
Trellis Air
Infrastructure & Construction
Membrane-based dehumidifiers that are vastly more energy-efficient than desiccant wheels and standalone dehumidifiers
Kausalyze
Manufacturing & Processing
True root-cause analysis for chemicals, energy, and pharmaceutical companies
Infinite Foundry
Manufacturing & Processing
Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability
Mithril Technologies
Infrastructure & Construction
Reshapable reflectors for advanced antennas & radars for space-based earth and severe weather monitoring
Datavedik
Energy & Power
Addressing complex optimization challenges in the energy industry
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
Thola
Energy & Power
On-demand marketplace for commercial building sustainability and safety management
Zero Homes
Infrastructure & Construction
Automated assessment, design, and procurement platform for residential building retrofits
NONA Technologies
Food, Water, & Land
Desalinating brackish water with 60% less electricity, fewer chemical inputs, and less downtime
Dottir Labs
Food, Water, & Land
Sensor technology that provides real-time, detailed chemical analysis of water
Alma Energy
Energy & Power
Geothermal exploration to deliver scaled renewable energy production at economic levels
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Startups Operate
12,915 new jobs created by our members, and counting
Boston
7,492
Houston
5,423
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.
Learn About our Programs
In addition to our Boston and Houston incubators, Greentown runs programs designed to address critical challenges in the climatetech ecosystem.