Transforming industry faster
Transforming the systems that power, move, feed, and connect the world is the work of our time, and startups hold the key.
But breakthroughs don't scale in isolation.
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.
Form Energy
Energy & Power
Cost-effective, multi-day energy-storage solutions
Next Rung Technology
Manufacturing & Processing
Supporting clean technologies in their commercialization journeys with expert engineering consulting
Datavedik
Energy & Power
Addressing complex optimization challenges in the energy industry
New Mantle Technologies
Energy & Power
Subsurface characterization with physics and AI
Dottir Labs
Food, Water, & Land
Sensor technology that provides real-time, detailed chemical analysis of water
Glimpse Engineering
Manufacturing & Processing
Visualizing battery scans and continuously monitoring key battery-design features
SpringCycle Energy
Energy & Power
Rechargeable iron fuel to transform solar into baseload power
Nomadic Drones
Energy & Power
The first autonomos drone allowing continuous and relocatable high-voltage power line monitoring
Thiozen
Manufacturing & Processing
Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen
Thola
Energy & Power
On-demand marketplace for commercial building sustainability and safety management
SBD Technologies
Transportation & Logistics
Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management
Harmony Desalting
Food, Water, & Land
Batch-process reverse osmosis for low-cost water desalination
Fresh Inset
Food, Water, & Land
Improving fresh produce’s shelf life, appearance, and quality
DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes
Flux Marine
Transportation & Logistics
Outboard motors and complete boat packages characterized by low maintenance, long range, and outstanding performance
Terralytiq
Manufacturing & Processing
Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon
Carbon To Stone
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
Matterworks
Manufacturing & Processing
Enabling metabolomics assays that are fast, broad, and can characterize diverse chemical classes with a single setup
Orien Energy
Infrastructure & Construction
Sorption heat pump to recover waste heat from dryer exhaust
SPHINX INC
Energy & Power
High-speed 24/7 energy trading with blockchain clarity and instant settlement
Form Energy
Energy & Power
Cost-effective, multi-day energy-storage solutions
Next Rung Technology
Manufacturing & Processing
Supporting clean technologies in their commercialization journeys with expert engineering consulting
Datavedik
Energy & Power
Addressing complex optimization challenges in the energy industry
New Mantle Technologies
Energy & Power
Subsurface characterization with physics and AI
Dottir Labs
Food, Water, & Land
Sensor technology that provides real-time, detailed chemical analysis of water
Glimpse Engineering
Manufacturing & Processing
Visualizing battery scans and continuously monitoring key battery-design features
SpringCycle Energy
Energy & Power
Rechargeable iron fuel to transform solar into baseload power
Nomadic Drones
Energy & Power
The first autonomos drone allowing continuous and relocatable high-voltage power line monitoring
Thiozen
Manufacturing & Processing
Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen
Thola
Energy & Power
On-demand marketplace for commercial building sustainability and safety management
SBD Technologies
Transportation & Logistics
Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management
Harmony Desalting
Food, Water, & Land
Batch-process reverse osmosis for low-cost water desalination
Fresh Inset
Food, Water, & Land
Improving fresh produce’s shelf life, appearance, and quality
DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes
Flux Marine
Transportation & Logistics
Outboard motors and complete boat packages characterized by low maintenance, long range, and outstanding performance
Terralytiq
Manufacturing & Processing
Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon
Carbon To Stone
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
Matterworks
Manufacturing & Processing
Enabling metabolomics assays that are fast, broad, and can characterize diverse chemical classes with a single setup
Orien Energy
Infrastructure & Construction
Sorption heat pump to recover waste heat from dryer exhaust
SPHINX INC
Energy & Power
High-speed 24/7 energy trading with blockchain clarity and instant settlement
NOC Energy
Energy & Power
Decarbonizing industrial heat with power-to-heat and power-to-power solutions
QEA Tech
Energy & Power
Precise, data-driven building-envelope audits using patented AI software, drones, and thermography
PooPoof Inc
Food, Water, & Land
The world’s first pocket-sized bioreactor
Amplified Industries
Infrastructure & Construction
AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues
Monaire
Infrastructure & Construction
Reducing HVAC energy use and repair costs for small commercial buildings
NewGrid
Energy & Power
Software and services to enable system operators, utilities, and power market participants to reduce grid congestion
Aluminum Technologies
Manufacturing & Processing
Low-GHG primary aluminum production with Carbo-Chloride Reduction
Loop CO2
Manufacturing & Processing
Transforming CO₂ into sustainable polymers to create fully recyclable materials
Boxes
Manufacturing & Processing
Smart, affordable, and sustainable retail combining the physical and digital worlds
Rushnu
Manufacturing & Processing
Turns waste into carbon-neutral chemistry
LiftOFF Technology
Energy & Power
Batteries with breakthrough energy density and safety
Prophet AI
Food, Water, & Land
AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions
Helium Capital
Infrastructure & Construction
Supporting growing small businesses
Kausalyze
Manufacturing & Processing
True root-cause analysis for chemicals, energy, and pharmaceutical companies
WhaleSpotter
Transportation & Logistics
Thermal imaging and AI to prevent marine mammal strikes at sea
Imperium Technologies
Energy & Power
Reducing industrial heating emissions with electrochemical processes
AllSpice.io
Infrastructure & Construction
A collaboration hub for hardware teams with revision control, design reviews, and releases
ICODOS
Manufacturing & Processing
Scalable clean methanol to decarbonize transport and chemicals
COI Energy
Energy & Power
AI and machine learning to predict and prevent energy waste
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
NOC Energy
Energy & Power
Decarbonizing industrial heat with power-to-heat and power-to-power solutions
QEA Tech
Energy & Power
Precise, data-driven building-envelope audits using patented AI software, drones, and thermography
PooPoof Inc
Food, Water, & Land
The world’s first pocket-sized bioreactor
Amplified Industries
Infrastructure & Construction
AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues
Monaire
Infrastructure & Construction
Reducing HVAC energy use and repair costs for small commercial buildings
NewGrid
Energy & Power
Software and services to enable system operators, utilities, and power market participants to reduce grid congestion
Aluminum Technologies
Manufacturing & Processing
Low-GHG primary aluminum production with Carbo-Chloride Reduction
Loop CO2
Manufacturing & Processing
Transforming CO₂ into sustainable polymers to create fully recyclable materials
Boxes
Manufacturing & Processing
Smart, affordable, and sustainable retail combining the physical and digital worlds
Rushnu
Manufacturing & Processing
Turns waste into carbon-neutral chemistry
LiftOFF Technology
Energy & Power
Batteries with breakthrough energy density and safety
Prophet AI
Food, Water, & Land
AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions
Helium Capital
Infrastructure & Construction
Supporting growing small businesses
Kausalyze
Manufacturing & Processing
True root-cause analysis for chemicals, energy, and pharmaceutical companies
WhaleSpotter
Transportation & Logistics
Thermal imaging and AI to prevent marine mammal strikes at sea
Imperium Technologies
Energy & Power
Reducing industrial heating emissions with electrochemical processes
AllSpice.io
Infrastructure & Construction
A collaboration hub for hardware teams with revision control, design reviews, and releases
ICODOS
Manufacturing & Processing
Scalable clean methanol to decarbonize transport and chemicals
COI Energy
Energy & Power
AI and machine learning to predict and prevent energy waste
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
Our Startups Have Raised Over $0B
All-time
0
Currently home to
0
0+
Countries Where
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.