Helping climatetech startupsTransformindustry faster
BETZ Group
Energy & Power
BETZ Group lead a global team of passionate professionals dedicated to advancing the development and adoption of innovative data technologies,remote sensing technologies and IT solutions in the fields of cleantech and critical infrastructure.
Appollo Wind Technologies
Infrastructure & Construction
GreenLabs Recycling
Manufacturing & Processing
Night Vision Technology Solutions (NVTS)
OhmConnect
Energy & Power
OhmConnect improve the lives of people and the health of the planet by reimagining the way we (collectively) use energy.
SBD Technologies
Transportation & Logistics
Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management
NeuraliX
Energy & Power
AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors
ConnectDER
Energy & Power
ConnectDER — unlocks the massive potential of DERs by turning the meter socket into the utility’s all-in-one plug-in point for solar, storage, EVs, and beyond.
Inovues
Infrastructure & Construction
Clear Sky Innovations
Manufacturing & Processing
A physics-based, AI-powered geoscience platform that uses multi-modal data sets to minimize time spent on data wrangling
Salient Predictions
Food, Water, & Land
Salient Predictions uses ocean data and machine learning to provide the world's most accurate weather forecasts from 3 weeks to 9 months out, enabling climate change resiliency and mitigation within industry.
Aja Labs
Manufacturing & Processing
GigaDAC
Energy & Power
Direct air capture optimized for gigaton scale
Revora Materials
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
Anvil Capture Systems
Manufacturing & Processing
CO2 direct air mineralization process, delivering carbon dioxide removal
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.
EVLO Energy Storage
Energy & Power
SpringCycle Energy
Energy & Power
Rechargeable iron fuel to transform solar into baseload power
AquaNRG
Energy & Power
AquaNRG is provider of advanced technologies for subsurface energy and environmental applications. AquaNRG's technology has been funded through $1.4M grants by the US Department of Energy and National Science Foundation.
NET Offset
Manufacturing & Processing
NET Offset is developing a supply chain optimization platform that integrates life cycle assessment (LCA) and end-use demand segments into the overall network design phase. We thereby eliminate the waste in bioenergy supply chains and help deploy the infrastructure which will bring our country to net-zero emissions.
BETZ Group
Energy & Power
BETZ Group lead a global team of passionate professionals dedicated to advancing the development and adoption of innovative data technologies,remote sensing technologies and IT solutions in the fields of cleantech and critical infrastructure.
Appollo Wind Technologies
Infrastructure & Construction
GreenLabs Recycling
Manufacturing & Processing
Night Vision Technology Solutions (NVTS)
OhmConnect
Energy & Power
OhmConnect improve the lives of people and the health of the planet by reimagining the way we (collectively) use energy.
SBD Technologies
Transportation & Logistics
Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management
NeuraliX
Energy & Power
AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors
ConnectDER
Energy & Power
ConnectDER — unlocks the massive potential of DERs by turning the meter socket into the utility’s all-in-one plug-in point for solar, storage, EVs, and beyond.
Inovues
Infrastructure & Construction
Clear Sky Innovations
Manufacturing & Processing
A physics-based, AI-powered geoscience platform that uses multi-modal data sets to minimize time spent on data wrangling
Salient Predictions
Food, Water, & Land
Salient Predictions uses ocean data and machine learning to provide the world's most accurate weather forecasts from 3 weeks to 9 months out, enabling climate change resiliency and mitigation within industry.
Aja Labs
Manufacturing & Processing
GigaDAC
Energy & Power
Direct air capture optimized for gigaton scale
Revora Materials
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery
Anvil Capture Systems
Manufacturing & Processing
CO2 direct air mineralization process, delivering carbon dioxide removal
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.
EVLO Energy Storage
Energy & Power
SpringCycle Energy
Energy & Power
Rechargeable iron fuel to transform solar into baseload power
AquaNRG
Energy & Power
AquaNRG is provider of advanced technologies for subsurface energy and environmental applications. AquaNRG's technology has been funded through $1.4M grants by the US Department of Energy and National Science Foundation.
NET Offset
Manufacturing & Processing
NET Offset is developing a supply chain optimization platform that integrates life cycle assessment (LCA) and end-use demand segments into the overall network design phase. We thereby eliminate the waste in bioenergy supply chains and help deploy the infrastructure which will bring our country to net-zero emissions.
Ecolectro
Manufacturing & Processing
Halo Energy
Energy & Power
SpadXTech
Food, Water, & Land
SpadXTech — seeks to significantly reduce CO2 emissions through the manufacturing of various carbon negative cellulose-based materials.
Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals
Radical Plastics
Manufacturing & Processing
Radical Plastics — is commercializing a patented technology for producing economical, biodegradable plastics that are a drop-in replacement for conventional, persistent plastics.
Ecobrew
Food, Water, & Land
Recycling clean CO₂ at the source for a circular supply, local reuse, or sale
Noir3 Energy
Energy & Power
Noir3 Energy, LLC is partnered with Sonnen, a Shell New Energies company to pave the way for the Texas Energy Transition by deploying the VPP( Virtual Power Plant) concept within the multifamily, commercial & Industrial building spaces with a no money down approach that benefits all parties involved from families to the building owners.
Hibot
Infrastructure & Construction
Solutions for infrastructures across industries.
Coflux Purification, Inc
Food, Water, & Land
A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams
Pre Framing Corp
Infrastructure & Construction
Tycho Solutions
Energy & Power
Global ROC
Food, Water, & Land
Global ROC — provides an innovative technology solution for cooling tower systems that reduces chemical consumption, saves water, and decreases energy costs.
MacroCycle Technologies
Manufacturing & Processing
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.
ETAK
ETAK transforms waste into clean energy. Our modular technology converts unsorted municipal and industrial waste into high-calorific gas, offering a decentralized, 24/7 alternative to fossil fuels and traditional incineration.
Beacon Climate Innovations
Energy & Power
Filling gaps between the frontlines of climate change and the emerging technologies that can best address them
JURA Bio
Food, Water, & Land
TalkingHeads Wireless
Energy & Power
TalkingHeads Wireless — develops Smart Network Towers, starting with the world’s most energy-efficient remote radio heads (RRH), which is the hardware box that sits at the top of the cell tower.
Osmoses
Manufacturing & Processing
Osmoses — develops advanced membrane technology for efficient gas and vapor separations.
Rushnu
Manufacturing & Processing
Turns waste into carbon-neutral chemistry
Ecolectro
Manufacturing & Processing
Halo Energy
Energy & Power
SpadXTech
Food, Water, & Land
SpadXTech — seeks to significantly reduce CO2 emissions through the manufacturing of various carbon negative cellulose-based materials.
Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals
Radical Plastics
Manufacturing & Processing
Radical Plastics — is commercializing a patented technology for producing economical, biodegradable plastics that are a drop-in replacement for conventional, persistent plastics.
Ecobrew
Food, Water, & Land
Recycling clean CO₂ at the source for a circular supply, local reuse, or sale
Noir3 Energy
Energy & Power
Noir3 Energy, LLC is partnered with Sonnen, a Shell New Energies company to pave the way for the Texas Energy Transition by deploying the VPP( Virtual Power Plant) concept within the multifamily, commercial & Industrial building spaces with a no money down approach that benefits all parties involved from families to the building owners.
Hibot
Infrastructure & Construction
Solutions for infrastructures across industries.
Coflux Purification, Inc
Food, Water, & Land
A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams
Pre Framing Corp
Infrastructure & Construction
Tycho Solutions
Energy & Power
Global ROC
Food, Water, & Land
Global ROC — provides an innovative technology solution for cooling tower systems that reduces chemical consumption, saves water, and decreases energy costs.
MacroCycle Technologies
Manufacturing & Processing
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.
ETAK
ETAK transforms waste into clean energy. Our modular technology converts unsorted municipal and industrial waste into high-calorific gas, offering a decentralized, 24/7 alternative to fossil fuels and traditional incineration.
Beacon Climate Innovations
Energy & Power
Filling gaps between the frontlines of climate change and the emerging technologies that can best address them
JURA Bio
Food, Water, & Land
TalkingHeads Wireless
Energy & Power
TalkingHeads Wireless — develops Smart Network Towers, starting with the world’s most energy-efficient remote radio heads (RRH), which is the hardware box that sits at the top of the cell tower.
Osmoses
Manufacturing & Processing
Osmoses — develops advanced membrane technology for efficient gas and vapor separations.
Rushnu
Manufacturing & Processing
Turns waste into carbon-neutral chemistry
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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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.