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
EVident Battery
Transportation & Logistics
Comprehensive, non-destructive inspection solutions for EV battery packs
Cala Systems
Energy & Power
Intelligent heat-pump water heaters
AgZen
Food, Water, & Land
AI that monitors leaf coverage during spraying to reduce pesticide usage
DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes
SPHINX INC
Energy & Power
High-speed 24/7 energy trading with blockchain clarity and instant settlement
Upgraid RE
Infrastructure & Construction
AI and satellite data that diagnose buildings and run energy simulations, to produce ready-to-pitch upgrade proposals
NeuraliX
Energy & Power
AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors
Swan Impact Network
Infrastructure & Construction
Angel investor network focusing on supporting early-stage companies
Flight Guard AI
Transportation & Logistics
Pilot-wearable safety systems using human-centered AI to enhance pilot awareness
Biospheric AI
Energy & Power
High-resolution, building-level energy demand forecasts for utilities and more
RIVSAL HOLDINGS INC.
Energy & Power
Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility
LOCOAL
Manufacturing & Processing
Turning waste into value, and producing clean energy, biofuels, and carbon credits
AeroShield Materials
Infrastructure & Construction
Insulating, porous aerogels for energy-efficient windows
Climative
Energy & Power
AI-assisted home-energy assessments deployed in an interactive, web-based platform
Fleet Robotics
Transportation & Logistics
Robotics to clean biofouling from ship hulls, improving fuel consumption for large ships
BiaTech Corporation
Energy & Power
Energy and natural resource infrastructure immersion with AI-enabled edge and cloud technology
Timbergrove
Energy & Power
Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency
Allkemie
Manufacturing & Processing
Producing tailored graphene and other nanomaterials at scale
Torres Orbital Mining Inc (TOM)
Infrastructure & Construction
Autonomous lunar excavation systems for dust-free regolith mining and space operations
Ensovi
Manufacturing & Processing
Cofactor recycling platform for sustainable drug manufacturing
EVident Battery
Transportation & Logistics
Comprehensive, non-destructive inspection solutions for EV battery packs
Cala Systems
Energy & Power
Intelligent heat-pump water heaters
AgZen
Food, Water, & Land
AI that monitors leaf coverage during spraying to reduce pesticide usage
DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes
SPHINX INC
Energy & Power
High-speed 24/7 energy trading with blockchain clarity and instant settlement
Upgraid RE
Infrastructure & Construction
AI and satellite data that diagnose buildings and run energy simulations, to produce ready-to-pitch upgrade proposals
NeuraliX
Energy & Power
AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors
Swan Impact Network
Infrastructure & Construction
Angel investor network focusing on supporting early-stage companies
Flight Guard AI
Transportation & Logistics
Pilot-wearable safety systems using human-centered AI to enhance pilot awareness
Biospheric AI
Energy & Power
High-resolution, building-level energy demand forecasts for utilities and more
RIVSAL HOLDINGS INC.
Energy & Power
Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility
LOCOAL
Manufacturing & Processing
Turning waste into value, and producing clean energy, biofuels, and carbon credits
AeroShield Materials
Infrastructure & Construction
Insulating, porous aerogels for energy-efficient windows
Climative
Energy & Power
AI-assisted home-energy assessments deployed in an interactive, web-based platform
Fleet Robotics
Transportation & Logistics
Robotics to clean biofouling from ship hulls, improving fuel consumption for large ships
BiaTech Corporation
Energy & Power
Energy and natural resource infrastructure immersion with AI-enabled edge and cloud technology
Timbergrove
Energy & Power
Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency
Allkemie
Manufacturing & Processing
Producing tailored graphene and other nanomaterials at scale
Torres Orbital Mining Inc (TOM)
Infrastructure & Construction
Autonomous lunar excavation systems for dust-free regolith mining and space operations
Ensovi
Manufacturing & Processing
Cofactor recycling platform for sustainable drug manufacturing
Hera Materials
Manufacturing & Processing
Regenerative plastics made from diverse, local biomass, powered by robotics and AI
Revvit
Infrastructure & Construction
Low-cost, simple EV charging at commercial, multifamily, fleet parking, and public properties
XMtrace
Manufacturing & Processing
Low-cost methane monitoring with real-time detection and autonomous response
Resollant
Manufacturing & Processing
Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
Newfound Materials
Manufacturing & Processing
Predictive engine for materials R&D for new pathways to critical minerals
Verdicity
Infrastructure & Construction
AI-enabled, customizable smart building, information, and facility services for building vendors
Active Surfaces
Energy & Power
Flexible, lightweight solar panels that turn any surface into solar
3D Architech, Inc.
Manufacturing & Processing
Ultra-fine and gel-based metal manufacturing, creating high-efficiency microstructures for cooling and clean energy
Harmony Desalting
Food, Water, & Land
Batch-process reverse osmosis for low-cost water desalination
Peak Power
Energy & Power
Energy-storage optimization software for commercial and industrial customers and energy storage project developers
Keysight Technologies (Member Account)
Manufacturing & Processing
World’s leading electronic measurement company
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
Cellen
Transportation & Logistics
Hydrogen-powered drones, combining UAV technology with hydrogen refueling solutions
10DQ
Energy & Power
Battery tech for long-duration energy storage at lower costs and improved safety
COI Energy
Energy & Power
AI and machine learning to predict and prevent energy waste
Orien Energy
Infrastructure & Construction
Sorption heat pump to recover waste heat from dryer exhaust
Element Resources
Energy & Power
Developing large-scale green hydrogen projects
EarthEn
Energy & Power
Enabling electrification through CO₂-based thermodynamic cycle
Mocean Energy
Energy & Power
Hybrid-offshore renewable power stations, combining wave, solar, and battery systems
Hera Materials
Manufacturing & Processing
Regenerative plastics made from diverse, local biomass, powered by robotics and AI
Revvit
Infrastructure & Construction
Low-cost, simple EV charging at commercial, multifamily, fleet parking, and public properties
XMtrace
Manufacturing & Processing
Low-cost methane monitoring with real-time detection and autonomous response
Resollant
Manufacturing & Processing
Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
Newfound Materials
Manufacturing & Processing
Predictive engine for materials R&D for new pathways to critical minerals
Verdicity
Infrastructure & Construction
AI-enabled, customizable smart building, information, and facility services for building vendors
Active Surfaces
Energy & Power
Flexible, lightweight solar panels that turn any surface into solar
3D Architech, Inc.
Manufacturing & Processing
Ultra-fine and gel-based metal manufacturing, creating high-efficiency microstructures for cooling and clean energy
Harmony Desalting
Food, Water, & Land
Batch-process reverse osmosis for low-cost water desalination
Peak Power
Energy & Power
Energy-storage optimization software for commercial and industrial customers and energy storage project developers
Keysight Technologies (Member Account)
Manufacturing & Processing
World’s leading electronic measurement company
Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market
Cellen
Transportation & Logistics
Hydrogen-powered drones, combining UAV technology with hydrogen refueling solutions
10DQ
Energy & Power
Battery tech for long-duration energy storage at lower costs and improved safety
COI Energy
Energy & Power
AI and machine learning to predict and prevent energy waste
Orien Energy
Infrastructure & Construction
Sorption heat pump to recover waste heat from dryer exhaust
Element Resources
Energy & Power
Developing large-scale green hydrogen projects
EarthEn
Energy & Power
Enabling electrification through CO₂-based thermodynamic cycle
Mocean Energy
Energy & Power
Hybrid-offshore renewable power stations, combining wave, solar, and battery systems
Our Startups Have Raised Over $0B
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Currently home to
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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.