Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
Focis AI logo

Focis AI

FocisAI uses AI and 3D scan data to automatically identify and map infrastructure in industrial facilities, turning complex environments into actionable digital intelligence. Our platform enables faster inspections, improved safety, and more efficient operations across heavy industry.

Innovator Energy logo

Innovator Energy

Energy & Power

Developing and deploying solutions in cooling, heating, and heat transfer

Caravel Bio logo

Caravel Bio

Manufacturing & Processing

Hertha Metals Inc. logo

Hertha Metals Inc.

Energy & Power

TerraFixing logo

TerraFixing

Manufacturing & Processing

TerraFixing — develops a direct-air-capture technology for cold climates using zeolite-based adsorbent materials.

R&B Technology logo

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.

Energy Dome logo

Energy Dome

Energy & Power

EnergyDome — has ideated and patented a revolutionary technology for large-scale and long-duration energy storage: The CO2 Battery.

HyperKelp logo

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.

Peak Power logo

Peak Power

Energy & Power

Energy-storage optimization software for commercial and industrial customers and energy storage project developers

CarbonQuest logo

CarbonQuest

Infrastructure & Construction

H2Pro logo

H2Pro

Energy & Power

H2Pro — is enabling the wide scale adoption of sustainable hydrogen fuel by introducing a novel production technology E-TAC.

SolarKal logo

SolarKal

Energy & Power

The largest solar energy marketplace in the U.S., connecting organizations to solar providers

Geckskin logo

Geckskin

Manufacturing & Processing

EQORE logo

EQORE

EQORE is an end-to-end provider of intelligent and autonomous energy storage for commercial and industrial facilities, aimed at minimizing their electricity costs. By offering unprecedented ROIs, EQORE makes adding distributed storage to the grid financially attractive, promoting grid resilience while supporting businesses.

Tagup logo

Tagup

Manufacturing & Processing

Tagup — has developed new machine learning methods and a software platform to predict industrial equipment failure, making physical infrastructure safer and more reliable.

SiTration logo

SiTration

Manufacturing & Processing

SiTration — is developing a novel membrane filtration technology that combines durability and performance at low cost to enable highly efficient separations in today’s mega-industries.

Apitronics logo

Apitronics

Food, Water, & Land

Sensai Analytics logo

Sensai Analytics

Energy & Power

Sensai Analytics — is developing an enterprise AI platform that enables companies with limited machine learning expertise to build scalable and robust time series forecasting models.

Texas Geothermal Energy Alliance logo

Texas Geothermal Energy Alliance

Energy & Power

CarTwin logo

CarTwin

Transportation & Logistics

CarTwin is unlocking the value of automative data by creating an integrated data ecosystem to drive actionable insight and predictive analytics to address the industry’s most pressing challenges. Its digital twin technology enables a diverse set of automotive use cases that power new innovations by connecting physical and digital worlds providing real-time operational awareness of vehicle, component, and manufacturing performance.

Focis AI logo

Focis AI

FocisAI uses AI and 3D scan data to automatically identify and map infrastructure in industrial facilities, turning complex environments into actionable digital intelligence. Our platform enables faster inspections, improved safety, and more efficient operations across heavy industry.

Innovator Energy logo

Innovator Energy

Energy & Power

Developing and deploying solutions in cooling, heating, and heat transfer

Caravel Bio logo

Caravel Bio

Manufacturing & Processing

Hertha Metals Inc. logo

Hertha Metals Inc.

Energy & Power

TerraFixing logo

TerraFixing

Manufacturing & Processing

TerraFixing — develops a direct-air-capture technology for cold climates using zeolite-based adsorbent materials.

R&B Technology logo

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.

Energy Dome logo

Energy Dome

Energy & Power

EnergyDome — has ideated and patented a revolutionary technology for large-scale and long-duration energy storage: The CO2 Battery.

HyperKelp logo

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.

Peak Power logo

Peak Power

Energy & Power

Energy-storage optimization software for commercial and industrial customers and energy storage project developers

CarbonQuest logo

CarbonQuest

Infrastructure & Construction

H2Pro logo

H2Pro

Energy & Power

H2Pro — is enabling the wide scale adoption of sustainable hydrogen fuel by introducing a novel production technology E-TAC.

SolarKal logo

SolarKal

Energy & Power

The largest solar energy marketplace in the U.S., connecting organizations to solar providers

Geckskin logo

Geckskin

Manufacturing & Processing

EQORE logo

EQORE

EQORE is an end-to-end provider of intelligent and autonomous energy storage for commercial and industrial facilities, aimed at minimizing their electricity costs. By offering unprecedented ROIs, EQORE makes adding distributed storage to the grid financially attractive, promoting grid resilience while supporting businesses.

Tagup logo

Tagup

Manufacturing & Processing

Tagup — has developed new machine learning methods and a software platform to predict industrial equipment failure, making physical infrastructure safer and more reliable.

SiTration logo

SiTration

Manufacturing & Processing

SiTration — is developing a novel membrane filtration technology that combines durability and performance at low cost to enable highly efficient separations in today’s mega-industries.

Apitronics logo

Apitronics

Food, Water, & Land

Sensai Analytics logo

Sensai Analytics

Energy & Power

Sensai Analytics — is developing an enterprise AI platform that enables companies with limited machine learning expertise to build scalable and robust time series forecasting models.

Texas Geothermal Energy Alliance logo

Texas Geothermal Energy Alliance

Energy & Power

CarTwin logo

CarTwin

Transportation & Logistics

CarTwin is unlocking the value of automative data by creating an integrated data ecosystem to drive actionable insight and predictive analytics to address the industry’s most pressing challenges. Its digital twin technology enables a diverse set of automotive use cases that power new innovations by connecting physical and digital worlds providing real-time operational awareness of vehicle, component, and manufacturing performance.

Timbergrove logo

Timbergrove

Energy & Power

Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency

Fleet Robotics logo

Fleet Robotics

Transportation & Logistics

Robotics to clean biofouling from ship hulls, improving fuel consumption for large ships

VesprSolar logo

VesprSolar

Energy & Power

VesprSolar — is transforming how solar panels are installed. VesprSolar V-Clamp™ is a low-cost fastener that makes solar arrays more secure and faster to install.

Liquid-Charge logo

Liquid-Charge

Energy & Power

Liquid-Charge — will manufacture mobile Solid Oxide Fuel Cell (SOFC) range extenders for battery electric vehicles, using them to trickle-charge batteries while effortlessly retaining CO2 for sequestration and recycling.

Electric Hydrogen logo

Electric Hydrogen

Energy & Power

Manufactureing the world’s most powerful electrolyzers to produce the lowest cost clean hydrogen

AeroNero logo

AeroNero

Food, Water, & Land

Water for all, always Empowering sustainable living through innovative air-water generation technology, providing clean and accessible water to communities while combating climate change.

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

GeoTeknica logo

GeoTeknica

Manufacturing & Processing

Root AI logo

Root AI

Food, Water, & Land

Axiom Optics logo

Axiom Optics

Manufacturing & Processing

Axiom Optics — provides optical instrumentation for fundamental sciences (astronomy, physics, biology) and industrial quality control.

Bodhi logo

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.

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.

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

energyGuard logo

energyGuard

Infrastructure & Construction

Onvector logo

Onvector

Infrastructure & Construction

Non-chemical water treatment using plasma to rid water of PFAS and more

Powerhouse Ventures logo

Powerhouse Ventures

Infrastructure & Construction

Investing in software to advance clean energy, mobility, and industry

GreenIRR logo

GreenIRR

Transportation & Logistics

Allium Engineering logo

Allium Engineering

Manufacturing & Processing

Allium Engineering — is a US-based startup founded by two MIT Ph.D graduates that designs and manufactures coated rebar technology that will create a more resilient, affordable, and sustainable infrastructure.

LOCOAL logo

LOCOAL

Manufacturing & Processing

Turning waste into value, and producing clean energy, biofuels, and carbon credits

SeebeckCell Technologies logo

SeebeckCell Technologies

Manufacturing & Processing

SeebeckCell Technologies — develops and manufactures liquid-based thermoelectric modules, power generators, and waste heat recovery systems.

Timbergrove logo

Timbergrove

Energy & Power

Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency

Fleet Robotics logo

Fleet Robotics

Transportation & Logistics

Robotics to clean biofouling from ship hulls, improving fuel consumption for large ships

VesprSolar logo

VesprSolar

Energy & Power

VesprSolar — is transforming how solar panels are installed. VesprSolar V-Clamp™ is a low-cost fastener that makes solar arrays more secure and faster to install.

Liquid-Charge logo

Liquid-Charge

Energy & Power

Liquid-Charge — will manufacture mobile Solid Oxide Fuel Cell (SOFC) range extenders for battery electric vehicles, using them to trickle-charge batteries while effortlessly retaining CO2 for sequestration and recycling.

Electric Hydrogen logo

Electric Hydrogen

Energy & Power

Manufactureing the world’s most powerful electrolyzers to produce the lowest cost clean hydrogen

AeroNero logo

AeroNero

Food, Water, & Land

Water for all, always Empowering sustainable living through innovative air-water generation technology, providing clean and accessible water to communities while combating climate change.

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

GeoTeknica logo

GeoTeknica

Manufacturing & Processing

Root AI logo

Root AI

Food, Water, & Land

Axiom Optics logo

Axiom Optics

Manufacturing & Processing

Axiom Optics — provides optical instrumentation for fundamental sciences (astronomy, physics, biology) and industrial quality control.

Bodhi logo

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.

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.

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

energyGuard logo

energyGuard

Infrastructure & Construction

Onvector logo

Onvector

Infrastructure & Construction

Non-chemical water treatment using plasma to rid water of PFAS and more

Powerhouse Ventures logo

Powerhouse Ventures

Infrastructure & Construction

Investing in software to advance clean energy, mobility, and industry

GreenIRR logo

GreenIRR

Transportation & Logistics

Allium Engineering logo

Allium Engineering

Manufacturing & Processing

Allium Engineering — is a US-based startup founded by two MIT Ph.D graduates that designs and manufactures coated rebar technology that will create a more resilient, affordable, and sustainable infrastructure.

LOCOAL logo

LOCOAL

Manufacturing & Processing

Turning waste into value, and producing clean energy, biofuels, and carbon credits

SeebeckCell Technologies logo

SeebeckCell Technologies

Manufacturing & Processing

SeebeckCell Technologies — develops and manufactures liquid-based thermoelectric modules, power generators, and waste heat recovery systems.

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