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
Provocative
Manufacturing & Processing
Replacing data centers’ cooling systems with carbon capture
AgZen
Food, Water, & Land
AI that monitors leaf coverage during spraying to reduce pesticide usage
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
Prithvi Ventures
Investing in startups reducing emissions with unique solutions for net-zero goals
Helix Earth Technologies
Infrastructure & Construction
Improving energy efficiency and minimizing emissions through a droplet-capture filtration system
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
Transaera
Infrastructure & Construction
Ultra-efficient air conditioning using a novel desiccant material
rStream Recycling LLC
Manufacturing & Processing
Autonomous waste-sorting system for non-industrial settings with critical waste volumes
Dottir Labs
Food, Water, & Land
Sensor technology that provides real-time, detailed chemical analysis of water
Sparkplug Power
Energy & Power
Energy-storage-as-a-service for municipal utilities and commercial businesses
SUPERGirls Shine Foundation
Energy & Power
Developing underserved girls in STEM to support equity in the emerging workforce
Nominal
Manufacturing & Processing
Software that lets hardware teams test and iterate as fast as software teams
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
Decimetrix
Energy & Power
AI platform to help clients measure their carbon footprint
Rafi Properties
Infrastructure & Construction
Ocean Visuals
Food, Water, & Land
Patented hyper-spectral LiDAR for real-time detection of oil and organics
Timbergrove
Energy & Power
Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency
Aramco Ventures (Member Account)
Energy & Power
Strategic technology-venturing program of Saudi Aramco
Lydian
Manufacturing & Processing
Fully electrified reactors for high-efficiency conversion of non-fossil feedstocks into pure syngas
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
Provocative
Manufacturing & Processing
Replacing data centers’ cooling systems with carbon capture
AgZen
Food, Water, & Land
AI that monitors leaf coverage during spraying to reduce pesticide usage
AdaViv
Food, Water, & Land
Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor
Prithvi Ventures
Investing in startups reducing emissions with unique solutions for net-zero goals
Helix Earth Technologies
Infrastructure & Construction
Improving energy efficiency and minimizing emissions through a droplet-capture filtration system
MCatalysis
Manufacturing & Processing
Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology
Transaera
Infrastructure & Construction
Ultra-efficient air conditioning using a novel desiccant material
rStream Recycling LLC
Manufacturing & Processing
Autonomous waste-sorting system for non-industrial settings with critical waste volumes
Dottir Labs
Food, Water, & Land
Sensor technology that provides real-time, detailed chemical analysis of water
Sparkplug Power
Energy & Power
Energy-storage-as-a-service for municipal utilities and commercial businesses
SUPERGirls Shine Foundation
Energy & Power
Developing underserved girls in STEM to support equity in the emerging workforce
Nominal
Manufacturing & Processing
Software that lets hardware teams test and iterate as fast as software teams
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
Decimetrix
Energy & Power
AI platform to help clients measure their carbon footprint
Rafi Properties
Infrastructure & Construction
Ocean Visuals
Food, Water, & Land
Patented hyper-spectral LiDAR for real-time detection of oil and organics
Timbergrove
Energy & Power
Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency
Aramco Ventures (Member Account)
Energy & Power
Strategic technology-venturing program of Saudi Aramco
Lydian
Manufacturing & Processing
Fully electrified reactors for high-efficiency conversion of non-fossil feedstocks into pure syngas
Capro-X
Food, Water, & Land
Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals
eSki Watercraft
Energy & Power
Electric personal watercraft
Element Resources
Energy & Power
Developing large-scale green hydrogen projects
Ensovi
Manufacturing & Processing
Cofactor recycling platform for sustainable drug manufacturing
Packwise
Manufacturing & Processing
IIoT sensors combined with a software and analytics platform to optimize industrial supply chains
PooPoof Inc
Food, Water, & Land
The world’s first pocket-sized bioreactor
PlaSene
Manufacturing & Processing
Converting plastic waste into liquid fuel and low-carbon hydrogen
DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes
SRECTrade
Energy & Power
Management and transaction platform for environmental commodities to reduce costs and increase transparency
Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices
Infinite Foundry
Manufacturing & Processing
Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability
NewGrid
Energy & Power
Software and services to enable system operators, utilities, and power market participants to reduce grid congestion
Active Surfaces
Energy & Power
Flexible, lightweight solar panels that turn any surface into solar
XMtrace
Manufacturing & Processing
Low-cost methane monitoring with real-time detection and autonomous response
Respire Energy
Energy & Power
Safe, low-cost, and long-duration metal-air battery designed for microgrids
Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power
NeuraliX
Energy & Power
AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors
CLS Wind
Energy & Power
Self-erecting system for installing wind turbines
Wellbore Consultants
Energy & Power
Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact
Lumiere Solutions
Infrastructure & Construction
Residential low-voltage and automated single efficiency-driven ecosystems that reduce energy waste
Anvil Capture Systems
Manufacturing & Processing
CO2 direct air mineralization process, delivering carbon dioxide removal
eSki Watercraft
Energy & Power
Electric personal watercraft
Element Resources
Energy & Power
Developing large-scale green hydrogen projects
Ensovi
Manufacturing & Processing
Cofactor recycling platform for sustainable drug manufacturing
Packwise
Manufacturing & Processing
IIoT sensors combined with a software and analytics platform to optimize industrial supply chains
PooPoof Inc
Food, Water, & Land
The world’s first pocket-sized bioreactor
PlaSene
Manufacturing & Processing
Converting plastic waste into liquid fuel and low-carbon hydrogen
DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes
SRECTrade
Energy & Power
Management and transaction platform for environmental commodities to reduce costs and increase transparency
Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices
Infinite Foundry
Manufacturing & Processing
Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability
NewGrid
Energy & Power
Software and services to enable system operators, utilities, and power market participants to reduce grid congestion
Active Surfaces
Energy & Power
Flexible, lightweight solar panels that turn any surface into solar
XMtrace
Manufacturing & Processing
Low-cost methane monitoring with real-time detection and autonomous response
Respire Energy
Energy & Power
Safe, low-cost, and long-duration metal-air battery designed for microgrids
Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power
NeuraliX
Energy & Power
AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors
CLS Wind
Energy & Power
Self-erecting system for installing wind turbines
Wellbore Consultants
Energy & Power
Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact
Lumiere Solutions
Infrastructure & Construction
Residential low-voltage and automated single efficiency-driven ecosystems that reduce energy waste
Anvil Capture Systems
Manufacturing & Processing
CO2 direct air mineralization process, delivering carbon dioxide removal
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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.