Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
Rushnu logo

Rushnu

Manufacturing & Processing

Turns waste into carbon-neutral chemistry

SensorEra logo

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.

SEEDiA logo

SEEDiA

Energy & Power

SEEDiA — is making cities sustainable by reducing CO2 emissions and keeping citizen connected and charged up.

TORO Water Air Thermal Technologies Corp. logo

TORO Water Air Thermal Technologies Corp.

Energy & Power

Autonomous Marine Systems logo

Autonomous Marine Systems

Food, Water, & Land

Seabound logo

Seabound

Transportation & Logistics

Aeon Blue Technologies logo

Aeon Blue Technologies

Manufacturing & Processing

By matching chemical plant production with green variable power, ABT offers a solution that can boost profit margins by reducing electricity costs, making plants safer for employees and surrounding communities, and solving one of the most pressing challenges faced by the industrial sector: manufacturing without carbon. Aeon Blue aims for swift deployment of its advanced intermittency technology through licensing and EPC support with a fee and royalties model.

KUBO Greenhouse Projects logo

KUBO Greenhouse Projects

Food, Water, & Land

EVLO Energy Storage logo

EVLO Energy Storage

Energy & Power

TerraFixing logo

TerraFixing

Manufacturing & Processing

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

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.

Enerbrain logo

Enerbrain

Infrastructure & Construction

Green Path Strategies logo

Green Path Strategies

Energy & Power

Aquosmic Corporation logo

Aquosmic Corporation

Energy & Power

Aquosmic — analyzes any body of water using satellite images and can determine biomass as well.

Stork, a Fluor Company logo

Stork, a Fluor Company

Type One Energy logo

Type One Energy

Energy & Power

Arbon logo

Arbon

Energy & Power

Low energy humidity-driven modular tech capturing and releasing CO2 for practical decarbonization

FLITE Material Sciences logo

FLITE Material Sciences

Manufacturing & Processing

Corumat logo

Corumat

Manufacturing & Processing

Quantum New Energy logo

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.

Rushnu logo

Rushnu

Manufacturing & Processing

Turns waste into carbon-neutral chemistry

SensorEra logo

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.

SEEDiA logo

SEEDiA

Energy & Power

SEEDiA — is making cities sustainable by reducing CO2 emissions and keeping citizen connected and charged up.

TORO Water Air Thermal Technologies Corp. logo

TORO Water Air Thermal Technologies Corp.

Energy & Power

Autonomous Marine Systems logo

Autonomous Marine Systems

Food, Water, & Land

Seabound logo

Seabound

Transportation & Logistics

Aeon Blue Technologies logo

Aeon Blue Technologies

Manufacturing & Processing

By matching chemical plant production with green variable power, ABT offers a solution that can boost profit margins by reducing electricity costs, making plants safer for employees and surrounding communities, and solving one of the most pressing challenges faced by the industrial sector: manufacturing without carbon. Aeon Blue aims for swift deployment of its advanced intermittency technology through licensing and EPC support with a fee and royalties model.

KUBO Greenhouse Projects logo

KUBO Greenhouse Projects

Food, Water, & Land

EVLO Energy Storage logo

EVLO Energy Storage

Energy & Power

TerraFixing logo

TerraFixing

Manufacturing & Processing

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

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.

Enerbrain logo

Enerbrain

Infrastructure & Construction

Green Path Strategies logo

Green Path Strategies

Energy & Power

Aquosmic Corporation logo

Aquosmic Corporation

Energy & Power

Aquosmic — analyzes any body of water using satellite images and can determine biomass as well.

Stork, a Fluor Company logo

Stork, a Fluor Company

Type One Energy logo

Type One Energy

Energy & Power

Arbon logo

Arbon

Energy & Power

Low energy humidity-driven modular tech capturing and releasing CO2 for practical decarbonization

FLITE Material Sciences logo

FLITE Material Sciences

Manufacturing & Processing

Corumat logo

Corumat

Manufacturing & Processing

Quantum New Energy logo

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.

WattSto Energy logo

WattSto Energy

Energy & Power

We are a leading manufacturer of Long Duration Energy Storage (LDES) and Unique Hybrid Design System, providing Fast, Long Duration, Safe, Sustainable, and Cost-effective energy storage solutions at the microgrid and grid levels. Our innovative technology accelerates the integration of renewable energy, reduces carbon emissions, and provides power for a cleaner future.

Littoral Power Systems logo

Littoral Power Systems

Energy & Power

LPS sells and maintains innovative, cost-effective, low impact hydropower and ocean power equipment.

GreenLIB logo

GreenLIB

Manufacturing & Processing

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.

Global Algae Innovations logo

Global Algae Innovations

Transportation & Logistics

Global Algae Innovations — grows algae that capture CO2 from the atmosphere to produce protein and oil for food and industrial use.

Terrapin Geothermics logo

Terrapin Geothermics

Energy & Power

Terrapin Geothermics — develops energy projects that reduce the emissions intensity of the industrial sectors.

Hygen logo

Hygen

Energy & Power

eologix sensor technology logo

eologix sensor technology

Energy & Power

9T Labs logo

9T Labs

Manufacturing & Processing

Skytree logo

Skytree

Food, Water, & Land

Skytree — harnesses carbon through the power of decentralized direct air capture technology. They create one of the world’s smallest and simplest circular carbon solution to transform how food is grown to provide cleaner water.

SolBid logo

SolBid

Energy & Power

SolBid — provides businesses with their unique software and services solution that empowers them to efficiently and effectively deploy clean solar energy resources.

Hicor Technologies Inc. logo

Hicor Technologies Inc.

Energy & Power

Pre Framing Corp logo

Pre Framing Corp

Infrastructure & Construction

Public Grid logo

Public Grid

Energy & Power

It's Electric logo

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.

Medley Thermal logo

Medley Thermal

Energy & Power

Medley Thermal — links clean, cheap power to steam heating systems, lowering a customer's energy costs and carbon emissions.

Katz Water Technologies logo

Katz Water Technologies

Energy & Power

Katz Water Technologies — recycles their customers’ waste water instead of disposing it and sells the components as valuable materials.

Oxylus Energy logo

Oxylus Energy

Transportation & Logistics

Via Separations logo

Via Separations

Manufacturing & Processing

Via Separations — is developing a new membrane material to make manufacturing processes more energy efficient—transforming the production of things like fertilizer and nylon, and with the potential to save a gigaton of carbon each year.

Octavia Carbon Co logo

Octavia Carbon Co

Manufacturing & Processing

Geothermal heat to capture and mineralize CO₂

WattSto Energy logo

WattSto Energy

Energy & Power

We are a leading manufacturer of Long Duration Energy Storage (LDES) and Unique Hybrid Design System, providing Fast, Long Duration, Safe, Sustainable, and Cost-effective energy storage solutions at the microgrid and grid levels. Our innovative technology accelerates the integration of renewable energy, reduces carbon emissions, and provides power for a cleaner future.

Littoral Power Systems logo

Littoral Power Systems

Energy & Power

LPS sells and maintains innovative, cost-effective, low impact hydropower and ocean power equipment.

GreenLIB logo

GreenLIB

Manufacturing & Processing

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.

Global Algae Innovations logo

Global Algae Innovations

Transportation & Logistics

Global Algae Innovations — grows algae that capture CO2 from the atmosphere to produce protein and oil for food and industrial use.

Terrapin Geothermics logo

Terrapin Geothermics

Energy & Power

Terrapin Geothermics — develops energy projects that reduce the emissions intensity of the industrial sectors.

Hygen logo

Hygen

Energy & Power

eologix sensor technology logo

eologix sensor technology

Energy & Power

9T Labs logo

9T Labs

Manufacturing & Processing

Skytree logo

Skytree

Food, Water, & Land

Skytree — harnesses carbon through the power of decentralized direct air capture technology. They create one of the world’s smallest and simplest circular carbon solution to transform how food is grown to provide cleaner water.

SolBid logo

SolBid

Energy & Power

SolBid — provides businesses with their unique software and services solution that empowers them to efficiently and effectively deploy clean solar energy resources.

Hicor Technologies Inc. logo

Hicor Technologies Inc.

Energy & Power

Pre Framing Corp logo

Pre Framing Corp

Infrastructure & Construction

Public Grid logo

Public Grid

Energy & Power

It's Electric logo

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.

Medley Thermal logo

Medley Thermal

Energy & Power

Medley Thermal — links clean, cheap power to steam heating systems, lowering a customer's energy costs and carbon emissions.

Katz Water Technologies logo

Katz Water Technologies

Energy & Power

Katz Water Technologies — recycles their customers’ waste water instead of disposing it and sells the components as valuable materials.

Oxylus Energy logo

Oxylus Energy

Transportation & Logistics

Via Separations logo

Via Separations

Manufacturing & Processing

Via Separations — is developing a new membrane material to make manufacturing processes more energy efficient—transforming the production of things like fertilizer and nylon, and with the potential to save a gigaton of carbon each year.

Octavia Carbon Co logo

Octavia Carbon Co

Manufacturing & Processing

Geothermal heat to capture and mineralize CO₂

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