Helping climatetech startupsTransformindustry faster
Made of Air
Manufacturing & Processing
Energy Web Foundation
Energy & Power
Mitico
Energy & Power
C-Quester delivers a solution for carbon capture using dry granular metal carbonate (GMC) purification technology with integrated measurement, reporting, and verification.
Thiozen
Manufacturing & Processing
Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen
10DQ
Energy & Power
Battery tech for long-duration energy storage at lower costs and improved safety
Carbion
Manufacturing & Processing
Affordable and clean biomass transformation to graphite for batteries
Hera Materials
Manufacturing & Processing
Regenerative plastics made from diverse, local biomass, powered by robotics and AI
NW NA
Energy & Power
NW NA — is an independent operator of extremely high-power electric charging stations (IECharge®), distributed electricity storage units (JBox®), and new micro-electricity production units (Tikaz®).
Searover Robotics and Software
Manufacturing & Processing
NeuroBionics
Manufacturing & Processing
Sustainability-focused device for minimally-invasive endovascular deep-brain stimulation for stroke rehabilitation
Decimetrix
Energy & Power
AI platform to help clients measure their carbon footprint
CemCycle
Manufacturing & Processing
Iron Lattice
Manufacturing & Processing
Building AI memory that powers human potential.
Amplified Industries
Infrastructure & Construction
AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues
Mantel
Manufacturing & Processing
Mantel — is developing the most thermally efficient and lowest cost carbon capture technology - helping the world reduce atmospheric CO2 levels.
Hygen
Energy & Power
SmartAC.com
Infrastructure & Construction
SmartAC.com — is on a mission to perfect the experience of home comfort. The company helps its partners offer next-level service with a more proactive approach to HVAC & plumbing.
Riptide Autonomous Solutions
Transportation & Logistics
Green Path Strategies
Energy & Power
Canetia Analytics
Transportation & Logistics
Canetia Analytics — monitors structures and their natural vibration signature through IoT, artificial intelligence and machine learning to enable a building to be seen from the inside to the outside, continuously and automatically.
Made of Air
Manufacturing & Processing
Energy Web Foundation
Energy & Power
Mitico
Energy & Power
C-Quester delivers a solution for carbon capture using dry granular metal carbonate (GMC) purification technology with integrated measurement, reporting, and verification.
Thiozen
Manufacturing & Processing
Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen
10DQ
Energy & Power
Battery tech for long-duration energy storage at lower costs and improved safety
Carbion
Manufacturing & Processing
Affordable and clean biomass transformation to graphite for batteries
Hera Materials
Manufacturing & Processing
Regenerative plastics made from diverse, local biomass, powered by robotics and AI
NW NA
Energy & Power
NW NA — is an independent operator of extremely high-power electric charging stations (IECharge®), distributed electricity storage units (JBox®), and new micro-electricity production units (Tikaz®).
Searover Robotics and Software
Manufacturing & Processing
NeuroBionics
Manufacturing & Processing
Sustainability-focused device for minimally-invasive endovascular deep-brain stimulation for stroke rehabilitation
Decimetrix
Energy & Power
AI platform to help clients measure their carbon footprint
CemCycle
Manufacturing & Processing
Iron Lattice
Manufacturing & Processing
Building AI memory that powers human potential.
Amplified Industries
Infrastructure & Construction
AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues
Mantel
Manufacturing & Processing
Mantel — is developing the most thermally efficient and lowest cost carbon capture technology - helping the world reduce atmospheric CO2 levels.
Hygen
Energy & Power
SmartAC.com
Infrastructure & Construction
SmartAC.com — is on a mission to perfect the experience of home comfort. The company helps its partners offer next-level service with a more proactive approach to HVAC & plumbing.
Riptide Autonomous Solutions
Transportation & Logistics
Green Path Strategies
Energy & Power
Canetia Analytics
Transportation & Logistics
Canetia Analytics — monitors structures and their natural vibration signature through IoT, artificial intelligence and machine learning to enable a building to be seen from the inside to the outside, continuously and automatically.
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.
Piaggio Fast Forward
Transportation & Logistics
Titan Advanced Energy Solutions
Energy & Power
Advanced battery management systems for lithium-ion batteries
DIOXYCLE
Manufacturing & Processing
DIOXYCLE — is building an electrolysis platform to convert carbon emissions into chemicals and fuel building blocks.
SRGE
Infrastructure & Construction
Full-service accelerator to support small and underrepresented-led construction firms
InfiSense
SolarKal
Energy & Power
The largest solar energy marketplace in the U.S., connecting organizations to solar providers
Medley Thermal
Energy & Power
Medley Thermal — links clean, cheap power to steam heating systems, lowering a customer's energy costs and carbon emissions.
R&B Technology
Manufacturing & Processing
R&B Technology (USA) Company Inc. — develops Ari, a cloud-based augmented intelligence software platform that analyzes data and creates holistic recommendations—and elegant visualizations—based on insights that are impossible to see otherwise.
SteamIQ
Manufacturing & Processing
Rivsal Holdings
Energy & Power
RIVSAL accelerates industrial growth with patented water-powered, onsite energy - delivering power in months, not years.
CalWave Power Technologies
Energy & Power
CalWave — CalWave’s mission is to unlock the vast and steady carbon-free power from ocean waves, bringing superior power-generating technology to market with a global reach. CalWave’s proprietary wave energy converter technology achieves high performance while surviving storms and extreme conditions.
Cyvl
Infrastructure & Construction
Cyvl.ai (formerly Roadgnar) — helps cities and businesses better manage their physical infrastructure assets like roads, bridges, sidewalks, buildings, and more with distributed data collection devices and machine learning.
Optigon
Energy & Power
Rapid, contactless characterization for assessing performance during photovoltaic solar cell fabrication
Altaeros
Energy & Power
Respire Energy
Energy & Power
Safe, low-cost, and long-duration metal-air battery designed for microgrids
SensorEra
Food, Water, & Land
SensorEra — provides real time induced seismic monitoring service for unconventional oil and gas production, salt water disposal and carbon injection and sequestration for CCUS.
Element Resources
Energy & Power
Developing large-scale green hydrogen projects
GreenLabs Recycling
Manufacturing & Processing
Visolis
Infrastructure & Construction
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.
Piaggio Fast Forward
Transportation & Logistics
Titan Advanced Energy Solutions
Energy & Power
Advanced battery management systems for lithium-ion batteries
DIOXYCLE
Manufacturing & Processing
DIOXYCLE — is building an electrolysis platform to convert carbon emissions into chemicals and fuel building blocks.
SRGE
Infrastructure & Construction
Full-service accelerator to support small and underrepresented-led construction firms
InfiSense
SolarKal
Energy & Power
The largest solar energy marketplace in the U.S., connecting organizations to solar providers
Medley Thermal
Energy & Power
Medley Thermal — links clean, cheap power to steam heating systems, lowering a customer's energy costs and carbon emissions.
R&B Technology
Manufacturing & Processing
R&B Technology (USA) Company Inc. — develops Ari, a cloud-based augmented intelligence software platform that analyzes data and creates holistic recommendations—and elegant visualizations—based on insights that are impossible to see otherwise.
SteamIQ
Manufacturing & Processing
Rivsal Holdings
Energy & Power
RIVSAL accelerates industrial growth with patented water-powered, onsite energy - delivering power in months, not years.
CalWave Power Technologies
Energy & Power
CalWave — CalWave’s mission is to unlock the vast and steady carbon-free power from ocean waves, bringing superior power-generating technology to market with a global reach. CalWave’s proprietary wave energy converter technology achieves high performance while surviving storms and extreme conditions.
Cyvl
Infrastructure & Construction
Cyvl.ai (formerly Roadgnar) — helps cities and businesses better manage their physical infrastructure assets like roads, bridges, sidewalks, buildings, and more with distributed data collection devices and machine learning.
Optigon
Energy & Power
Rapid, contactless characterization for assessing performance during photovoltaic solar cell fabrication
Altaeros
Energy & Power
Respire Energy
Energy & Power
Safe, low-cost, and long-duration metal-air battery designed for microgrids
SensorEra
Food, Water, & Land
SensorEra — provides real time induced seismic monitoring service for unconventional oil and gas production, salt water disposal and carbon injection and sequestration for CCUS.
Element Resources
Energy & Power
Developing large-scale green hydrogen projects
GreenLabs Recycling
Manufacturing & Processing
Visolis
Infrastructure & Construction
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 Operate
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New Jobs Created by Our Members, and Counting
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.
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Access the most concentrated pipeline of vetted climatetech companies in North America. Partner on pilots, invest, or join as a corporate sponsor.
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