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
Tato Labs
Manufacturing & Processing
Bioplastic products and packaging solutions made from potato starch
Titan Advanced Energy Solutions
Energy & Power
Advanced battery management systems for lithium-ion batteries
FLUIDXLAB Americas Inc.
Manufacturing & Processing
AI-powered microfluidic tools that help control and improve fluid processes across many industries
GeoTeknica
Manufacturing & Processing
Teknobuilt
Infrastructure & Construction
Cloud-based construction project management software
MagDrive Technologies Inc.
Manufacturing & Processing
Eliminating fugitive emissions and delivering zero-leak performance and durability
Helix Earth Technologies
Infrastructure & Construction
Improving energy efficiency and minimizing emissions through a droplet-capture filtration system
Clarity Castle
Infrastructure & Construction
Modular, soundproof work pods made from recycled materials
Deep Anchor Solutions
Infrastructure & Construction
Anchoring solutions for floating applications including energy, aquaculture, and large-scale infrastructure
WISE ENERGIE
Energy & Power
Blending vertical-axis wind, solar PV, and battery storage into a single, silent system generating 24/7 clean power
Suyana Climate Insurance
Infinite Foundry
Manufacturing & Processing
Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability
Decimetrix
Energy & Power
AI platform to help clients measure their carbon footprint
InnoEnergy (Member Account)
Energy & Power
Industrializing cleantech innovation to enable and grow a global net-zero economy
Solar Materials
Energy & Power
Recovered and recycled secondary solar panel materials
Solar Mantle
Infrastructure & Construction
Film that reflects sunlight for energy-free passive cooling of structures
Saint-Gobain (Member Account)
Infrastructure & Construction
Worldwide leader in light and sustainable construction
Carbion
Manufacturing & Processing
Affordable and clean biomass transformation to graphite for batteries
Clean Crop Technologies
Food, Water, & Land
Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity
Octavia Carbon Co
Manufacturing & Processing
Geothermal heat to capture and mineralize CO₂
Tato Labs
Manufacturing & Processing
Bioplastic products and packaging solutions made from potato starch
Titan Advanced Energy Solutions
Energy & Power
Advanced battery management systems for lithium-ion batteries
FLUIDXLAB Americas Inc.
Manufacturing & Processing
AI-powered microfluidic tools that help control and improve fluid processes across many industries
GeoTeknica
Manufacturing & Processing
Teknobuilt
Infrastructure & Construction
Cloud-based construction project management software
MagDrive Technologies Inc.
Manufacturing & Processing
Eliminating fugitive emissions and delivering zero-leak performance and durability
Helix Earth Technologies
Infrastructure & Construction
Improving energy efficiency and minimizing emissions through a droplet-capture filtration system
Clarity Castle
Infrastructure & Construction
Modular, soundproof work pods made from recycled materials
Deep Anchor Solutions
Infrastructure & Construction
Anchoring solutions for floating applications including energy, aquaculture, and large-scale infrastructure
WISE ENERGIE
Energy & Power
Blending vertical-axis wind, solar PV, and battery storage into a single, silent system generating 24/7 clean power
Suyana Climate Insurance
Infinite Foundry
Manufacturing & Processing
Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability
Decimetrix
Energy & Power
AI platform to help clients measure their carbon footprint
InnoEnergy (Member Account)
Energy & Power
Industrializing cleantech innovation to enable and grow a global net-zero economy
Solar Materials
Energy & Power
Recovered and recycled secondary solar panel materials
Solar Mantle
Infrastructure & Construction
Film that reflects sunlight for energy-free passive cooling of structures
Saint-Gobain (Member Account)
Infrastructure & Construction
Worldwide leader in light and sustainable construction
Carbion
Manufacturing & Processing
Affordable and clean biomass transformation to graphite for batteries
Clean Crop Technologies
Food, Water, & Land
Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity
Octavia Carbon Co
Manufacturing & Processing
Geothermal heat to capture and mineralize CO₂
Harmony Desalting
Food, Water, & Land
Batch-process reverse osmosis for low-cost water desalination
GS Vortex Systems
Food, Water, & Land
Hydrodynamic flow technology reducing flow resistance through pipes
Mission Zero Technologies
Manufacturing & Processing
Efficient electrochemistry to capture CO₂
Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices
BluBridge Energy Solutions
Energy & Power
Removing undesired elements from pre- and post-combustion gas streams
Mars Materials
Manufacturing & Processing
Converting CO₂ and biomass into acrylonitrile
Kanin Energy
Energy & Power
Monetizing industrial waste heat with reduced deployment risk via third-party financing
BLU NXT
Energy & Power
Solar concentrators for high-temperature heat and energy
MoveEV
Transportation & Logistics
Mitigating Scope 1 & 3 emissions for businesses while providing cost savings for employees
frakktal
Manufacturing & Processing
Biobased polymer process to upend PVC overuse
PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells
Carbon To Stone
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
Carbonext
Manufacturing & Processing
3D-graphene technology that develops integrated solutions with carbon-coated silicon anodes
Nebumi
Energy & Power
Emissions intelligence platform, monitoring pollution with satellite data and AI
NeuroBionics
Manufacturing & Processing
Sustainability-focused device for minimally-invasive endovascular deep-brain stimulation for stroke rehabilitation
Boxes
Manufacturing & Processing
Smart, affordable, and sustainable retail combining the physical and digital worlds
HarvestAi
Food, Water, & Land
Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning
Flux Marine
Transportation & Logistics
Outboard motors and complete boat packages characterized by low maintenance, long range, and outstanding performance
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
Harmony Desalting
Food, Water, & Land
Batch-process reverse osmosis for low-cost water desalination
GS Vortex Systems
Food, Water, & Land
Hydrodynamic flow technology reducing flow resistance through pipes
Mission Zero Technologies
Manufacturing & Processing
Efficient electrochemistry to capture CO₂
Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices
BluBridge Energy Solutions
Energy & Power
Removing undesired elements from pre- and post-combustion gas streams
Mars Materials
Manufacturing & Processing
Converting CO₂ and biomass into acrylonitrile
Kanin Energy
Energy & Power
Monetizing industrial waste heat with reduced deployment risk via third-party financing
BLU NXT
Energy & Power
Solar concentrators for high-temperature heat and energy
MoveEV
Transportation & Logistics
Mitigating Scope 1 & 3 emissions for businesses while providing cost savings for employees
frakktal
Manufacturing & Processing
Biobased polymer process to upend PVC overuse
PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells
Carbon To Stone
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
Carbonext
Manufacturing & Processing
3D-graphene technology that develops integrated solutions with carbon-coated silicon anodes
Nebumi
Energy & Power
Emissions intelligence platform, monitoring pollution with satellite data and AI
NeuroBionics
Manufacturing & Processing
Sustainability-focused device for minimally-invasive endovascular deep-brain stimulation for stroke rehabilitation
Boxes
Manufacturing & Processing
Smart, affordable, and sustainable retail combining the physical and digital worlds
HarvestAi
Food, Water, & Land
Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning
Flux Marine
Transportation & Logistics
Outboard motors and complete boat packages characterized by low maintenance, long range, and outstanding performance
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
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.