Helping climatetech startupsTransformindustry faster
FLUIDXLAB Americas Inc.
Manufacturing & Processing
AI-powered microfluidic tools that help control and improve fluid processes across many industries
BlueTec Energy
Energy & Power
Kula Bio
Energy & Power
Kula Bio — supercharges natural nitrogen-fixing microbes with renewable energy in order to deliver reliable, low-cost organic biofertilizers.
Polymer-X
Manufacturing & Processing
WindRays Energy LLC
Energy & Power
WindRays Energy LLC — develops new models of wind energy designs to make widespread implementation in densely populated areas more efficient and profitable.
Smart Resource Labs
Energy & Power
We make data easy
HyperKelp
Food, Water, & Land
HyperKelp — produces the Kelp Smart Buoy—a hosted payload platform capable of carrying hundreds of sensors—that collects and transmits marine-level data for wind farmers, climate scientists, and military intelligence officials.
Emrod
Energy & Power
Sustainable power with long-range wireless power transfer technology
Resollant
Manufacturing & Processing
Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale
Axis Sky Renewables
Energy & Power
-- creates innovative wind solutions, specializing in vertical axis wind turbines. Its cutting-edge technology is less expensive than traditional wind turbines to produce, deploy and maintain while still producing reliable renewable energy.
Solas Capture
Solas Capture is developing a sunlight-powered process for sustainable lithium carbonate production using novel photobase chemistry. Our technology converts lithium brines and CO₂ into battery-grade materials with lower energy use, reduced waste, and a significantly smaller environmental footprint than conventional methods.
Quantum New Energy
Infrastructure & Construction
Quantum New Energy’s platform, EnerWisely, is a science-based solution that integrates IoT with data analytics and behavioral science. Quantum New Energy helps users transform their unused energy consumption data into personalized, actionable insights to maximize their monetary savings and reduce their environmental impacts.
Bodhi
Energy & Power
Bodhi — cultivates the bond between people and the energy that powers their lives. The company’s software platform empowers solar companies to deliver amazing customer experiences with ease. Bodhi automates communication and personalizes the homeowners’ experience, so that installers can focus on what they do best – executing projects, making more sales, and transforming communities around energy.
Stork, a Fluor Company
Forty Acres Consulting
Transportation & Logistics
Forty Acres Consulting — consults for both large Fortune 500 companies and startups big and small. They specialize in scaling, supply chain, logistics, business development and healthcare.
Starfire Energy
Energy & Power
Embue
Infrastructure & Construction
Element Resources
Energy & Power
Developing large-scale green hydrogen projects
Type One Energy
Energy & Power
Ohmium International
Energy & Power
FLUIDXLAB Americas Inc.
Manufacturing & Processing
AI-powered microfluidic tools that help control and improve fluid processes across many industries
BlueTec Energy
Energy & Power
Kula Bio
Energy & Power
Kula Bio — supercharges natural nitrogen-fixing microbes with renewable energy in order to deliver reliable, low-cost organic biofertilizers.
Polymer-X
Manufacturing & Processing
WindRays Energy LLC
Energy & Power
WindRays Energy LLC — develops new models of wind energy designs to make widespread implementation in densely populated areas more efficient and profitable.
Smart Resource Labs
Energy & Power
We make data easy
HyperKelp
Food, Water, & Land
HyperKelp — produces the Kelp Smart Buoy—a hosted payload platform capable of carrying hundreds of sensors—that collects and transmits marine-level data for wind farmers, climate scientists, and military intelligence officials.
Emrod
Energy & Power
Sustainable power with long-range wireless power transfer technology
Resollant
Manufacturing & Processing
Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale
Axis Sky Renewables
Energy & Power
-- creates innovative wind solutions, specializing in vertical axis wind turbines. Its cutting-edge technology is less expensive than traditional wind turbines to produce, deploy and maintain while still producing reliable renewable energy.
Solas Capture
Solas Capture is developing a sunlight-powered process for sustainable lithium carbonate production using novel photobase chemistry. Our technology converts lithium brines and CO₂ into battery-grade materials with lower energy use, reduced waste, and a significantly smaller environmental footprint than conventional methods.
Quantum New Energy
Infrastructure & Construction
Quantum New Energy’s platform, EnerWisely, is a science-based solution that integrates IoT with data analytics and behavioral science. Quantum New Energy helps users transform their unused energy consumption data into personalized, actionable insights to maximize their monetary savings and reduce their environmental impacts.
Bodhi
Energy & Power
Bodhi — cultivates the bond between people and the energy that powers their lives. The company’s software platform empowers solar companies to deliver amazing customer experiences with ease. Bodhi automates communication and personalizes the homeowners’ experience, so that installers can focus on what they do best – executing projects, making more sales, and transforming communities around energy.
Stork, a Fluor Company
Forty Acres Consulting
Transportation & Logistics
Forty Acres Consulting — consults for both large Fortune 500 companies and startups big and small. They specialize in scaling, supply chain, logistics, business development and healthcare.
Starfire Energy
Energy & Power
Embue
Infrastructure & Construction
Element Resources
Energy & Power
Developing large-scale green hydrogen projects
Type One Energy
Energy & Power
Ohmium International
Energy & Power
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.
SpadXTech
Food, Water, & Land
SpadXTech — seeks to significantly reduce CO2 emissions through the manufacturing of various carbon negative cellulose-based materials.
Newfound Materials
Manufacturing & Processing
The synthesis design layer for making new materials.
Biosfera
Manufacturing & Processing
TransOceans Clean Energy Risk, LLC
Energy & Power
Risk management solutions for global clean tech risk portfolios
Ecolectro
Manufacturing & Processing
Solarflux
Energy & Power
SolarFlux — makes the FOCUS, a parabolic dish concentrator capable of delivering flexible, clean, inexpensive solar thermal power for a wide range of applications.
PurposeEnergy
Food, Water, & Land
Coflux Purification, Inc
Food, Water, & Land
A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams
Hicor Technologies Inc.
Energy & Power
Electra
Manufacturing & Processing
ElectraSteel's — mission is to electrify and decarbonize steelmaking using renewable energy with zero carbon dioxide emissions while lowering the energy intensity and cost.
CarbonBlue
Food, Water, & Land
Sublime Systems
Infrastructure & Construction
Decarbonizing cement-making with an electrochemical process that replaces fossil-fuel-fired kilns
Ivys Energy Solutions
Energy & Power
On-site hydrogen-generation and -dispensing appliance that uses water and electricity to make fuel-cell-grade hydrogen
It's Electric
Infrastructure & Construction
it's electric accelerates the adoption of EVs with a scalable and simple Level-2 curbside charging solution, ensuring that every community has access to clean, sustainable transportation options. it's electric's "behind the meter" approach simplifies the installation process by eliminating the need for utility coordination, and is the first in the country to offer EVSE hardware with a detachable cord.
Verde Technologies
Energy & Power
Lightweight, flexible perovskite solar panels for mass industrial and commercial adoption
Medley Thermal
Energy & Power
Medley Thermal — links clean, cheap power to steam heating systems, lowering a customer's energy costs and carbon emissions.
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
Moonflower Farms
Food, Water, & Land
Moonflower Technologies uses space age technology to solve real world problems.
SolarKal
Energy & Power
The largest solar energy marketplace in the U.S., connecting organizations to solar providers
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.
SpadXTech
Food, Water, & Land
SpadXTech — seeks to significantly reduce CO2 emissions through the manufacturing of various carbon negative cellulose-based materials.
Newfound Materials
Manufacturing & Processing
The synthesis design layer for making new materials.
Biosfera
Manufacturing & Processing
TransOceans Clean Energy Risk, LLC
Energy & Power
Risk management solutions for global clean tech risk portfolios
Ecolectro
Manufacturing & Processing
Solarflux
Energy & Power
SolarFlux — makes the FOCUS, a parabolic dish concentrator capable of delivering flexible, clean, inexpensive solar thermal power for a wide range of applications.
PurposeEnergy
Food, Water, & Land
Coflux Purification, Inc
Food, Water, & Land
A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams
Hicor Technologies Inc.
Energy & Power
Electra
Manufacturing & Processing
ElectraSteel's — mission is to electrify and decarbonize steelmaking using renewable energy with zero carbon dioxide emissions while lowering the energy intensity and cost.
CarbonBlue
Food, Water, & Land
Sublime Systems
Infrastructure & Construction
Decarbonizing cement-making with an electrochemical process that replaces fossil-fuel-fired kilns
Ivys Energy Solutions
Energy & Power
On-site hydrogen-generation and -dispensing appliance that uses water and electricity to make fuel-cell-grade hydrogen
It's Electric
Infrastructure & Construction
it's electric accelerates the adoption of EVs with a scalable and simple Level-2 curbside charging solution, ensuring that every community has access to clean, sustainable transportation options. it's electric's "behind the meter" approach simplifies the installation process by eliminating the need for utility coordination, and is the first in the country to offer EVSE hardware with a detachable cord.
Verde Technologies
Energy & Power
Lightweight, flexible perovskite solar panels for mass industrial and commercial adoption
Medley Thermal
Energy & Power
Medley Thermal — links clean, cheap power to steam heating systems, lowering a customer's energy costs and carbon emissions.
Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis
Moonflower Farms
Food, Water, & Land
Moonflower Technologies uses space age technology to solve real world problems.
SolarKal
Energy & Power
The largest solar energy marketplace in the U.S., connecting organizations to solar providers
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.
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.
Explore Investing
Tap into deal flow with the world’s largest community of climate and energy startups.