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
Thola
Energy & Power
On-demand marketplace for commercial building sustainability and safety management
BiaTech Corporation
Energy & Power
Energy and natural resource infrastructure immersion with AI-enabled edge and cloud technology
Dottir Labs
Food, Water, & Land
Sensor technology that provides real-time, detailed chemical analysis of water
Teknobuilt
Infrastructure & Construction
Cloud-based construction project management software
SPHINX INC
Energy & Power
High-speed 24/7 energy trading with blockchain clarity and instant settlement
Elemental Advanced Materials
Manufacturing & Processing
Graphene and hydrogen from mixed and contaminated waste plastics and other organic materials
Saint-Gobain (Member Account)
Infrastructure & Construction
Worldwide leader in light and sustainable construction
Cocoa Potash
Food, Water, & Land
Endeavor Composites
Manufacturing & Processing
Sustainably repurposing landfill-destined post-industrial fibers into semi-finished goods for the composite industry
Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals
XMtrace
Manufacturing & Processing
Low-cost methane monitoring with real-time detection and autonomous response
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
Carbonext
Manufacturing & Processing
3D-graphene technology that develops integrated solutions with carbon-coated silicon anodes
Respire Energy
Energy & Power
Safe, low-cost, and long-duration metal-air battery designed for microgrids
BLU NXT
Energy & Power
Solar concentrators for high-temperature heat and energy
WISE ENERGIE
Energy & Power
Blending vertical-axis wind, solar PV, and battery storage into a single, silent system generating 24/7 clean power
NOC Energy
Energy & Power
Decarbonizing industrial heat with power-to-heat and power-to-power solutions
AgZen
Food, Water, & Land
AI that monitors leaf coverage during spraying to reduce pesticide usage
Provocative
Manufacturing & Processing
Replacing data centers’ cooling systems with carbon capture
FAST Metals
Manufacturing & Processing
Hydrometallurgical-recovery process for extracting rare-earth elements from industrial tailings
Thola
Energy & Power
On-demand marketplace for commercial building sustainability and safety management
BiaTech Corporation
Energy & Power
Energy and natural resource infrastructure immersion with AI-enabled edge and cloud technology
Dottir Labs
Food, Water, & Land
Sensor technology that provides real-time, detailed chemical analysis of water
Teknobuilt
Infrastructure & Construction
Cloud-based construction project management software
SPHINX INC
Energy & Power
High-speed 24/7 energy trading with blockchain clarity and instant settlement
Elemental Advanced Materials
Manufacturing & Processing
Graphene and hydrogen from mixed and contaminated waste plastics and other organic materials
Saint-Gobain (Member Account)
Infrastructure & Construction
Worldwide leader in light and sustainable construction
Cocoa Potash
Food, Water, & Land
Endeavor Composites
Manufacturing & Processing
Sustainably repurposing landfill-destined post-industrial fibers into semi-finished goods for the composite industry
Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals
XMtrace
Manufacturing & Processing
Low-cost methane monitoring with real-time detection and autonomous response
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
Carbonext
Manufacturing & Processing
3D-graphene technology that develops integrated solutions with carbon-coated silicon anodes
Respire Energy
Energy & Power
Safe, low-cost, and long-duration metal-air battery designed for microgrids
BLU NXT
Energy & Power
Solar concentrators for high-temperature heat and energy
WISE ENERGIE
Energy & Power
Blending vertical-axis wind, solar PV, and battery storage into a single, silent system generating 24/7 clean power
NOC Energy
Energy & Power
Decarbonizing industrial heat with power-to-heat and power-to-power solutions
AgZen
Food, Water, & Land
AI that monitors leaf coverage during spraying to reduce pesticide usage
Provocative
Manufacturing & Processing
Replacing data centers’ cooling systems with carbon capture
FAST Metals
Manufacturing & Processing
Hydrometallurgical-recovery process for extracting rare-earth elements from industrial tailings
Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices
Browning the Green Space
Food, Water, & Land
Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities
Next Rung Technology
Manufacturing & Processing
Supporting clean technologies in their commercialization journeys with expert engineering consulting
Ensovi
Manufacturing & Processing
Cofactor recycling platform for sustainable drug manufacturing
NewGenium
Energy & Power
Advanced brine-to-battery grade LFP technology
Prophet AI
Food, Water, & Land
AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions
Universal Matter Inc.
Manufacturing & Processing
Producing graphene from carbon waste streams
Dugu Systems
Energy & Power
Zero-carbon power with an emissions-free gas turbine
SpringCycle Energy
Energy & Power
Rechargeable iron fuel to transform solar into baseload power
Overstory
Food, Water, & Land
Minimizing vegetation contact with power lines using satellite imagery, climate data, and machine learning
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
Climative
Energy & Power
AI-assisted home-energy assessments deployed in an interactive, web-based platform
Timbergrove
Energy & Power
Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency
AllSpice.io
Infrastructure & Construction
A collaboration hub for hardware teams with revision control, design reviews, and releases
Sparkplug Power
Energy & Power
Energy-storage-as-a-service for municipal utilities and commercial businesses
Verde Technologies
Energy & Power
Lightweight, flexible perovskite solar panels for mass industrial and commercial adoption
RIVSAL HOLDINGS INC.
Energy & Power
Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility
PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells
FlowCellutions
Energy & Power
Preventing power outages and improving cost savings for critical battery systems
Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power
Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices
Browning the Green Space
Food, Water, & Land
Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities
Next Rung Technology
Manufacturing & Processing
Supporting clean technologies in their commercialization journeys with expert engineering consulting
Ensovi
Manufacturing & Processing
Cofactor recycling platform for sustainable drug manufacturing
NewGenium
Energy & Power
Advanced brine-to-battery grade LFP technology
Prophet AI
Food, Water, & Land
AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions
Universal Matter Inc.
Manufacturing & Processing
Producing graphene from carbon waste streams
Dugu Systems
Energy & Power
Zero-carbon power with an emissions-free gas turbine
SpringCycle Energy
Energy & Power
Rechargeable iron fuel to transform solar into baseload power
Overstory
Food, Water, & Land
Minimizing vegetation contact with power lines using satellite imagery, climate data, and machine learning
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
Climative
Energy & Power
AI-assisted home-energy assessments deployed in an interactive, web-based platform
Timbergrove
Energy & Power
Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency
AllSpice.io
Infrastructure & Construction
A collaboration hub for hardware teams with revision control, design reviews, and releases
Sparkplug Power
Energy & Power
Energy-storage-as-a-service for municipal utilities and commercial businesses
Verde Technologies
Energy & Power
Lightweight, flexible perovskite solar panels for mass industrial and commercial adoption
RIVSAL HOLDINGS INC.
Energy & Power
Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility
PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells
FlowCellutions
Energy & Power
Preventing power outages and improving cost savings for critical battery systems
Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power
Our Startups Have Raised Over $0B
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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.