Helping climatetech startupsTransformindustry faster
Patch
Transportation & Logistics
ThermaFuels
Transportation & Logistics
Deploying scalable, financeable low-carbon methanol and sustainable fuel infrastructure
Eclipse Solar Projects
Energy & Power
Eclipse Solar Projects is a developer of utility-scale solar assets that generates, and then sells, power/electricity wholesale.
NOC Energy
Energy & Power
Decarbonizing industrial heat with power-to-heat and power-to-power solutions
CZAR Power
Energy & Power
Sol Clarity
Energy & Power
Sol Clarity — Solar panels need cleaning but there’s not enough water for it – with EDS just flip a switch to watch dust disappear. Dust settles, they don’t!
Molecule Works Inc.
Manufacturing & Processing
We are developing a low-cost (less than $100/ton) solid sorbent DAC system based on our proprietary reactor/contactor configuration. This design yields very high productivity by delivering low pressure drop, very high heat and mass transfer rates and high sorbent loading. Heat is provided through ls closed loop low temp hot water system so that no steam is needed. After initial charge, no water is consumed. Regeneration is achieved in 20 to 30 minutes.
Invested Development
Food, Water, & Land
Axiom Optics
Manufacturing & Processing
Axiom Optics — provides optical instrumentation for fundamental sciences (astronomy, physics, biology) and industrial quality control.
Rivsal Holdings
Energy & Power
RIVSAL accelerates industrial growth with patented water-powered, onsite energy - delivering power in months, not years.
Aja Labs
Manufacturing & Processing
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
WattSto Energy
Energy & Power
We are a leading manufacturer of Long Duration Energy Storage (LDES) and Unique Hybrid Design System, providing Fast, Long Duration, Safe, Sustainable, and Cost-effective energy storage solutions at the microgrid and grid levels. Our innovative technology accelerates the integration of renewable energy, reduces carbon emissions, and provides power for a cleaner future.
Electric Hydrogen
Energy & Power
Manufactureing the world’s most powerful electrolyzers to produce the lowest cost clean hydrogen
FlowCellutions
Energy & Power
Preventing power outages and improving cost savings for critical battery systems
CeraPhi Energy
Energy & Power
CeraPhi Energy — is a geothermal energy company developing a “plug and play” scalable technology platform.
BlakBear
Food, Water, & Land
Littoral Power Systems
Energy & Power
LPS sells and maintains innovative, cost-effective, low impact hydropower and ocean power equipment.
Aelun
Manatee Energy
Infrastructure & Construction
Rigorous and automated system design for affordable home heat pumps
Patch
Transportation & Logistics
ThermaFuels
Transportation & Logistics
Deploying scalable, financeable low-carbon methanol and sustainable fuel infrastructure
Eclipse Solar Projects
Energy & Power
Eclipse Solar Projects is a developer of utility-scale solar assets that generates, and then sells, power/electricity wholesale.
NOC Energy
Energy & Power
Decarbonizing industrial heat with power-to-heat and power-to-power solutions
CZAR Power
Energy & Power
Sol Clarity
Energy & Power
Sol Clarity — Solar panels need cleaning but there’s not enough water for it – with EDS just flip a switch to watch dust disappear. Dust settles, they don’t!
Molecule Works Inc.
Manufacturing & Processing
We are developing a low-cost (less than $100/ton) solid sorbent DAC system based on our proprietary reactor/contactor configuration. This design yields very high productivity by delivering low pressure drop, very high heat and mass transfer rates and high sorbent loading. Heat is provided through ls closed loop low temp hot water system so that no steam is needed. After initial charge, no water is consumed. Regeneration is achieved in 20 to 30 minutes.
Invested Development
Food, Water, & Land
Axiom Optics
Manufacturing & Processing
Axiom Optics — provides optical instrumentation for fundamental sciences (astronomy, physics, biology) and industrial quality control.
Rivsal Holdings
Energy & Power
RIVSAL accelerates industrial growth with patented water-powered, onsite energy - delivering power in months, not years.
Aja Labs
Manufacturing & Processing
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
WattSto Energy
Energy & Power
We are a leading manufacturer of Long Duration Energy Storage (LDES) and Unique Hybrid Design System, providing Fast, Long Duration, Safe, Sustainable, and Cost-effective energy storage solutions at the microgrid and grid levels. Our innovative technology accelerates the integration of renewable energy, reduces carbon emissions, and provides power for a cleaner future.
Electric Hydrogen
Energy & Power
Manufactureing the world’s most powerful electrolyzers to produce the lowest cost clean hydrogen
FlowCellutions
Energy & Power
Preventing power outages and improving cost savings for critical battery systems
CeraPhi Energy
Energy & Power
CeraPhi Energy — is a geothermal energy company developing a “plug and play” scalable technology platform.
BlakBear
Food, Water, & Land
Littoral Power Systems
Energy & Power
LPS sells and maintains innovative, cost-effective, low impact hydropower and ocean power equipment.
Aelun
Manatee Energy
Infrastructure & Construction
Rigorous and automated system design for affordable home heat pumps
SparkCharge
Transportation & Logistics
SparkCharge — is creating a more efficient and connected world of transportation by eliminating range anxiety with its ultra-fast, portable, and modular charging station for electric vehicles.
SBD Technologies
Transportation & Logistics
Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management
Revora Materials
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
DASH Clean Energy
Energy & Power
Dash Clean Energy — has developed a hydrogen simulation tool that can be used by developers to evaluate existing and planned wind and solar projects and how to manage and produce hydrogen cost competitively with existing hydrogen production pathways.
Adiabatic Materials
Manufacturing & Processing
Unlocking clean, affordable chemical production with electricity
Searover Robotics and Software
Manufacturing & Processing
Carbion
Manufacturing & Processing
Affordable and clean biomass transformation to graphite for batteries
Risk Consulting Partners
Energy & Power
INpower
INpower — is a specialty insurance brokerage & risk management firm that knows that business innovation generates risk. Their risk management mission is simple: to provide their clients with deep insurance expertise, thoughtful enterprise risk management counsel, and fierce claims advocacy supported by offices in: Houston, Boston and Irvine, California.
Energy Toolbase
Energy & Power
Energy Toolbase — is an industry leading software platform that provides a cohesive suite of project modeling, energy storage control and asset monitoring products that enable solar and energy storage developers to deploy projects more efficiently.
Enviro Power Technologies
Energy & Power
Enviro Power Technologies — is replacing aging heating equipment with their breakthrough SmartWatt heat & power technology providing energy solutions servicing millions of homes, businesses and their power utilities in lowering ever increasing utility bills and increasing resiliency and reliability.
Hempitecture
Manufacturing & Processing
Hempitecture (Ketchum, ID) is a manufacturer and distributor of biobased building materials, including their low embodied carbon insulation, HempWool®.
COI Energy
Energy & Power
AI and machine learning to predict and prevent energy waste
Hera Materials
Manufacturing & Processing
Regenerative plastics made from diverse, local biomass, powered by robotics and AI
Quantum Diamond Technologies
Manufacturing & Processing
Iron Lattice
Manufacturing & Processing
Building AI memory that powers human potential.
Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices
MacroCycle Technologies
Manufacturing & Processing
Transocean
KVD
Manufacturing & Processing
KVD enables EELS in existing SEMs, providing a cost-effective way to see light elements and bonding states.
SparkCharge
Transportation & Logistics
SparkCharge — is creating a more efficient and connected world of transportation by eliminating range anxiety with its ultra-fast, portable, and modular charging station for electric vehicles.
SBD Technologies
Transportation & Logistics
Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management
Revora Materials
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
DASH Clean Energy
Energy & Power
Dash Clean Energy — has developed a hydrogen simulation tool that can be used by developers to evaluate existing and planned wind and solar projects and how to manage and produce hydrogen cost competitively with existing hydrogen production pathways.
Adiabatic Materials
Manufacturing & Processing
Unlocking clean, affordable chemical production with electricity
Searover Robotics and Software
Manufacturing & Processing
Carbion
Manufacturing & Processing
Affordable and clean biomass transformation to graphite for batteries
Risk Consulting Partners
Energy & Power
INpower
INpower — is a specialty insurance brokerage & risk management firm that knows that business innovation generates risk. Their risk management mission is simple: to provide their clients with deep insurance expertise, thoughtful enterprise risk management counsel, and fierce claims advocacy supported by offices in: Houston, Boston and Irvine, California.
Energy Toolbase
Energy & Power
Energy Toolbase — is an industry leading software platform that provides a cohesive suite of project modeling, energy storage control and asset monitoring products that enable solar and energy storage developers to deploy projects more efficiently.
Enviro Power Technologies
Energy & Power
Enviro Power Technologies — is replacing aging heating equipment with their breakthrough SmartWatt heat & power technology providing energy solutions servicing millions of homes, businesses and their power utilities in lowering ever increasing utility bills and increasing resiliency and reliability.
Hempitecture
Manufacturing & Processing
Hempitecture (Ketchum, ID) is a manufacturer and distributor of biobased building materials, including their low embodied carbon insulation, HempWool®.
COI Energy
Energy & Power
AI and machine learning to predict and prevent energy waste
Hera Materials
Manufacturing & Processing
Regenerative plastics made from diverse, local biomass, powered by robotics and AI
Quantum Diamond Technologies
Manufacturing & Processing
Iron Lattice
Manufacturing & Processing
Building AI memory that powers human potential.
Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices
MacroCycle Technologies
Manufacturing & Processing
Transocean
KVD
Manufacturing & Processing
KVD enables EELS in existing SEMs, providing a cost-effective way to see light elements and bonding states.
The way the world makes energy, materials, and food is changing — and the next decade will decide whether that change makes life better: more energy with fewer emissions, more industry with cleaner air, more good jobs.
That future comes from entrepreneurs — the heroes who turn ideas into real products, real companies, and the jobs of the future. And the ones who make it are the ones with a community behind them.
For 15 years, Greentown has been that community — leaning in with the space, the people, the funding, and the first customers they need. Get behind the entrepreneurs building our future.
Our Startups Have Raised Over $0B
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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
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