Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
BETZ Group logo

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 logo

Appollo Wind Technologies

Infrastructure & Construction

GreenLabs Recycling logo

GreenLabs Recycling

Manufacturing & Processing

Night Vision Technology Solutions (NVTS) logo

Night Vision Technology Solutions (NVTS)

OhmConnect logo

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 logo

SBD Technologies

Transportation & Logistics

Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management

NeuraliX logo

NeuraliX

Energy & Power

AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors

ConnectDER logo

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 logo

Inovues

Infrastructure & Construction

Clear Sky Innovations logo

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 logo

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 logo

Aja Labs

Manufacturing & Processing

GigaDAC logo

GigaDAC

Energy & Power

Direct air capture optimized for gigaton scale

Revora Materials logo

Revora Materials

Energy & Power

Carbon-mineralization technology with high-value minerals and metals recovery

Anvil Capture Systems logo

Anvil Capture Systems

Manufacturing & Processing

CO2 direct air mineralization process, delivering carbon dioxide removal

DASH Clean Energy logo

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 logo

EVLO Energy Storage

Energy & Power

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

AquaNRG logo

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 logo

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 logo

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 logo

Appollo Wind Technologies

Infrastructure & Construction

GreenLabs Recycling logo

GreenLabs Recycling

Manufacturing & Processing

Night Vision Technology Solutions (NVTS) logo

Night Vision Technology Solutions (NVTS)

OhmConnect logo

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 logo

SBD Technologies

Transportation & Logistics

Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management

NeuraliX logo

NeuraliX

Energy & Power

AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors

ConnectDER logo

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 logo

Inovues

Infrastructure & Construction

Clear Sky Innovations logo

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 logo

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 logo

Aja Labs

Manufacturing & Processing

GigaDAC logo

GigaDAC

Energy & Power

Direct air capture optimized for gigaton scale

Revora Materials logo

Revora Materials

Energy & Power

Carbon-mineralization technology with high-value minerals and metals recovery

Anvil Capture Systems logo

Anvil Capture Systems

Manufacturing & Processing

CO2 direct air mineralization process, delivering carbon dioxide removal

DASH Clean Energy logo

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 logo

EVLO Energy Storage

Energy & Power

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

AquaNRG logo

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 logo

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 logo

Ecolectro

Manufacturing & Processing

Halo Energy logo

Halo Energy

Energy & Power

SpadXTech logo

SpadXTech

Food, Water, & Land

SpadXTech — seeks to significantly reduce CO2 emissions through the manufacturing of various carbon negative cellulose-based materials.

Catalyxx logo

Catalyxx

Manufacturing & Processing

Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals

Radical Plastics logo

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 logo

Ecobrew

Food, Water, & Land

Recycling clean CO₂ at the source for a circular supply, local reuse, or sale

Noir3 Energy logo

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 logo

Hibot

Infrastructure & Construction

Solutions for infrastructures across industries.

Coflux Purification, Inc logo

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 logo

Pre Framing Corp

Infrastructure & Construction

Tycho Solutions logo

Tycho Solutions

Energy & Power

Global ROC logo

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 logo

MacroCycle Technologies

Manufacturing & Processing

Molecule Works Inc. logo

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 logo

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 logo

Beacon Climate Innovations

Energy & Power

Filling gaps between the frontlines of climate change and the emerging technologies that can best address them

JURA Bio logo

JURA Bio

Food, Water, & Land

TalkingHeads Wireless logo

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 logo

Osmoses

Manufacturing & Processing

Osmoses — develops advanced membrane technology for efficient gas and vapor separations.

Rushnu logo

Rushnu

Manufacturing & Processing

Turns waste into carbon-neutral chemistry

Ecolectro logo

Ecolectro

Manufacturing & Processing

Halo Energy logo

Halo Energy

Energy & Power

SpadXTech logo

SpadXTech

Food, Water, & Land

SpadXTech — seeks to significantly reduce CO2 emissions through the manufacturing of various carbon negative cellulose-based materials.

Catalyxx logo

Catalyxx

Manufacturing & Processing

Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals

Radical Plastics logo

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 logo

Ecobrew

Food, Water, & Land

Recycling clean CO₂ at the source for a circular supply, local reuse, or sale

Noir3 Energy logo

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 logo

Hibot

Infrastructure & Construction

Solutions for infrastructures across industries.

Coflux Purification, Inc logo

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 logo

Pre Framing Corp

Infrastructure & Construction

Tycho Solutions logo

Tycho Solutions

Energy & Power

Global ROC logo

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 logo

MacroCycle Technologies

Manufacturing & Processing

Molecule Works Inc. logo

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 logo

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 logo

Beacon Climate Innovations

Energy & Power

Filling gaps between the frontlines of climate change and the emerging technologies that can best address them

JURA Bio logo

JURA Bio

Food, Water, & Land

TalkingHeads Wireless logo

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 logo

Osmoses

Manufacturing & Processing

Osmoses — develops advanced membrane technology for efficient gas and vapor separations.

Rushnu logo

Rushnu

Manufacturing & Processing

Turns waste into carbon-neutral chemistry

Greentown member working in a wet lab
Greentown community members collaborating
Greentown member pipetting in a lab
Greentown members at work in the incubator
[ 03 ]Who We Are

Greentown is a 501(c)(3) nonprofit helping climate entrepreneurs build faster.

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.

[ 04 ]By The Numbers

Our Impact

Our members aren't just building better ways to operate; they're slashing emissions, boosting efficiency, and transforming how we use resources across the world. Now 15 years and counting, the impact speaks for itself.
Capital Mobilized

Our Startups Have Raised Over $0B

2011Now
Startups Supported

All-time

0

Currently home to

0

Global Footprint

0+

Countries Where
Startups Operate

Jobs Created

0

New Jobs Created by Our Members, and Counting

[ 05 ]Our Partners

Where Industry Meets Innovation

Startups bring the breakthroughs. Corporate partners bring the scale, infrastructure, expertise, and capital to make them matter.

  • Amazon
  • Amrize
  • Aramco
  • BCG
  • Chevron
  • Dassault Systemes
  • Emerson
  • Enel
  • Equinor
  • Foley Hoag
  • Fortescue
  • GeSI
  • GE Vernova
  • OnTerris (fka Montrose)
  • Saint-Gobain
  • Shell
  • TotalEnergies
  • Vinson & Elkins
  • Woodside Energy
For Startups

Apply for Membership

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.

Greentown member prototyping hardware in the lab
For Partners
Greentown partners networking at an event

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.

Explore Partnership
Events
Speaker presenting on stage at a Greentown event

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.

View Calendar
For Investors
Founders and investors connecting at a Greentown incubator

Explore Investing

Tap into deal flow with the world’s largest community of climate and energy startups.

Explore Investing