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
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
SWERV
Infrastructure & Construction
Making homes healthier, more comfortable, and more energy efficient through reimagined and easy to install ventilation
Rafi Properties
Infrastructure & Construction
Clarity Castle
Infrastructure & Construction
Modular, soundproof work pods made from recycled materials
Adept Materials
Infrastructure & Construction
Material innovations that improve moisture regulation, comfort, and energy efficiency
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
WhaleSpotter
Transportation & Logistics
Thermal imaging and AI to prevent marine mammal strikes at sea
XTPL
Manufacturing & Processing
Additive manufacturing technology for ultra-precise printing of nanomaterials
Tato Labs
Manufacturing & Processing
Bioplastic products and packaging solutions made from potato starch
Amplified Industries
Infrastructure & Construction
AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues
BiaTech Corporation
Energy & Power
Energy and natural resource infrastructure immersion with AI-enabled edge and cloud technology
Aramco Ventures (Member Account)
Energy & Power
Strategic technology-venturing program of Saudi Aramco
Beacon Climate Innovations
Energy & Power
Filling gaps between the frontlines of climate change and the emerging technologies that can best address them
ClearTrace
Energy & Power
Product suite for traceable, end-to-end data management of electricity and certificate transactions
New Mantle Technologies
Energy & Power
Subsurface characterization with physics and AI
Allkemie
Manufacturing & Processing
Producing tailored graphene and other nanomaterials at scale
Carbon To Stone
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
Onvector
Infrastructure & Construction
Non-chemical water treatment using plasma to rid water of PFAS and more
Saint-Gobain (Member Account)
Infrastructure & Construction
Worldwide leader in light and sustainable construction
Sublime Systems
Infrastructure & Construction
Decarbonizing cement-making with an electrochemical process that replaces fossil-fuel-fired kilns
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
SWERV
Infrastructure & Construction
Making homes healthier, more comfortable, and more energy efficient through reimagined and easy to install ventilation
Rafi Properties
Infrastructure & Construction
Clarity Castle
Infrastructure & Construction
Modular, soundproof work pods made from recycled materials
Adept Materials
Infrastructure & Construction
Material innovations that improve moisture regulation, comfort, and energy efficiency
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
WhaleSpotter
Transportation & Logistics
Thermal imaging and AI to prevent marine mammal strikes at sea
XTPL
Manufacturing & Processing
Additive manufacturing technology for ultra-precise printing of nanomaterials
Tato Labs
Manufacturing & Processing
Bioplastic products and packaging solutions made from potato starch
Amplified Industries
Infrastructure & Construction
AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues
BiaTech Corporation
Energy & Power
Energy and natural resource infrastructure immersion with AI-enabled edge and cloud technology
Aramco Ventures (Member Account)
Energy & Power
Strategic technology-venturing program of Saudi Aramco
Beacon Climate Innovations
Energy & Power
Filling gaps between the frontlines of climate change and the emerging technologies that can best address them
ClearTrace
Energy & Power
Product suite for traceable, end-to-end data management of electricity and certificate transactions
New Mantle Technologies
Energy & Power
Subsurface characterization with physics and AI
Allkemie
Manufacturing & Processing
Producing tailored graphene and other nanomaterials at scale
Carbon To Stone
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
Onvector
Infrastructure & Construction
Non-chemical water treatment using plasma to rid water of PFAS and more
Saint-Gobain (Member Account)
Infrastructure & Construction
Worldwide leader in light and sustainable construction
Sublime Systems
Infrastructure & Construction
Decarbonizing cement-making with an electrochemical process that replaces fossil-fuel-fired kilns
Browning the Green Space
Food, Water, & Land
Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities
Laminar
Manufacturing & Processing
IoT platform optimizing industrial liquid and fluid systems in supply chain, manufacturing, and data centers
eSki Watercraft
Energy & Power
Electric personal watercraft
HarvestAi
Food, Water, & Land
Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
XMtrace
Manufacturing & Processing
Low-cost methane monitoring with real-time detection and autonomous response
Julius Education
Infrastructure & Construction
Helping green organizations manage the changing workforce through an experience platform for job-seekers
Sparkplug Power
Energy & Power
Energy-storage-as-a-service for municipal utilities and commercial businesses
Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals
EnergyGigs
Food, Water, & Land
Talent and freelance platform for the energy industry
CLS Wind
Energy & Power
Self-erecting system for installing wind turbines
Imperium Technologies
Energy & Power
Reducing industrial heating emissions with electrochemical processes
American Battery Technology Company
Energy & Power
Advanced technology, first-mover lithium-ion battery recycling and primary battery metal extraction company
Raptor Maps
Energy & Power
AI software to increase solar farm power production, reduce operational risk, and lower costs
BLU NXT
Energy & Power
Solar concentrators for high-temperature heat and energy
HKG Energy
Energy & Power
Silicon materials that increase battery energy density
RIVSAL HOLDINGS INC.
Energy & Power
Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility
GeoTeknica
Manufacturing & Processing
Simlionics
Energy & Power
Physics-aware, advanced AI battery modeling and intelligence for EV and energy-storage systems
SpringCycle Energy
Energy & Power
Rechargeable iron fuel to transform solar into baseload power
Browning the Green Space
Food, Water, & Land
Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities
Laminar
Manufacturing & Processing
IoT platform optimizing industrial liquid and fluid systems in supply chain, manufacturing, and data centers
eSki Watercraft
Energy & Power
Electric personal watercraft
HarvestAi
Food, Water, & Land
Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
XMtrace
Manufacturing & Processing
Low-cost methane monitoring with real-time detection and autonomous response
Julius Education
Infrastructure & Construction
Helping green organizations manage the changing workforce through an experience platform for job-seekers
Sparkplug Power
Energy & Power
Energy-storage-as-a-service for municipal utilities and commercial businesses
Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals
EnergyGigs
Food, Water, & Land
Talent and freelance platform for the energy industry
CLS Wind
Energy & Power
Self-erecting system for installing wind turbines
Imperium Technologies
Energy & Power
Reducing industrial heating emissions with electrochemical processes
American Battery Technology Company
Energy & Power
Advanced technology, first-mover lithium-ion battery recycling and primary battery metal extraction company
Raptor Maps
Energy & Power
AI software to increase solar farm power production, reduce operational risk, and lower costs
BLU NXT
Energy & Power
Solar concentrators for high-temperature heat and energy
HKG Energy
Energy & Power
Silicon materials that increase battery energy density
RIVSAL HOLDINGS INC.
Energy & Power
Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility
GeoTeknica
Manufacturing & Processing
Simlionics
Energy & Power
Physics-aware, advanced AI battery modeling and intelligence for EV and energy-storage systems
SpringCycle Energy
Energy & Power
Rechargeable iron fuel to transform solar into baseload power
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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.