Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
Puro Renewables logo

Puro Renewables

Manufacturing & Processing

Puro Renewables (Miami Beach, FL) upcycles carbon-negative biowaste for use in reducing the amount of fossil-fuel-based resin and carbon footprint in typical plastic products.

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.

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

Reframe Systems logo

Reframe Systems

Infrastructure & Construction

Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

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

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.

Cala Systems logo

Cala Systems

Energy & Power

Intelligent heat-pump water heaters

Corvus Robotics logo

Corvus Robotics

Manufacturing & Processing

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.

Applied Gaia logo

Applied Gaia

Food, Water, & Land

Sequestering carbon in the soil

Foray Bioscience logo

Foray Bioscience

Manufacturing & Processing

Kula Bio logo

Kula Bio

Energy & Power

Kula Bio — supercharges natural nitrogen-fixing microbes with renewable energy in order to deliver reliable, low-cost organic biofertilizers.

Phytoform Labs logo

Phytoform Labs

Food, Water, & Land

Phytoform Labs — has a crop development platform that uses cutting-edge machine learning and genome editing technologies to explore and evolve the natural genetic sequences of plants.

Wellbore Consultants logo

Wellbore Consultants

Energy & Power

Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact

Launch Academy logo

Launch Academy

Exakom logo

Exakom

Manufacturing & Processing

Exakom — is a pioneer in developing innovative data analysis products for the industrial automation market.

SmartAC.com logo

SmartAC.com

Infrastructure & Construction

SmartAC.com — is on a mission to perfect the experience of home comfort. The company helps its partners offer next-level service with a more proactive approach to HVAC & plumbing.

Atlas Robotics logo

Atlas Robotics

Transportation & Logistics

Haffner Energy logo

Haffner Energy

Energy & Power

Producing renewable energy via waste-biomass thermolysis

RailState logo

RailState

Transportation & Logistics

RailState — answers an increasing demand among freight customers, commodity traders, financial analysts, and government agencies for more current and granular visibility on railway volumes, performance, and condition.

Puro Renewables logo

Puro Renewables

Manufacturing & Processing

Puro Renewables (Miami Beach, FL) upcycles carbon-negative biowaste for use in reducing the amount of fossil-fuel-based resin and carbon footprint in typical plastic products.

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.

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

Reframe Systems logo

Reframe Systems

Infrastructure & Construction

Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

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

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.

Cala Systems logo

Cala Systems

Energy & Power

Intelligent heat-pump water heaters

Corvus Robotics logo

Corvus Robotics

Manufacturing & Processing

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.

Applied Gaia logo

Applied Gaia

Food, Water, & Land

Sequestering carbon in the soil

Foray Bioscience logo

Foray Bioscience

Manufacturing & Processing

Kula Bio logo

Kula Bio

Energy & Power

Kula Bio — supercharges natural nitrogen-fixing microbes with renewable energy in order to deliver reliable, low-cost organic biofertilizers.

Phytoform Labs logo

Phytoform Labs

Food, Water, & Land

Phytoform Labs — has a crop development platform that uses cutting-edge machine learning and genome editing technologies to explore and evolve the natural genetic sequences of plants.

Wellbore Consultants logo

Wellbore Consultants

Energy & Power

Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact

Launch Academy logo

Launch Academy

Exakom logo

Exakom

Manufacturing & Processing

Exakom — is a pioneer in developing innovative data analysis products for the industrial automation market.

SmartAC.com logo

SmartAC.com

Infrastructure & Construction

SmartAC.com — is on a mission to perfect the experience of home comfort. The company helps its partners offer next-level service with a more proactive approach to HVAC & plumbing.

Atlas Robotics logo

Atlas Robotics

Transportation & Logistics

Haffner Energy logo

Haffner Energy

Energy & Power

Producing renewable energy via waste-biomass thermolysis

RailState logo

RailState

Transportation & Logistics

RailState — answers an increasing demand among freight customers, commodity traders, financial analysts, and government agencies for more current and granular visibility on railway volumes, performance, and condition.

Arbor Energy Holdings Inc logo

Arbor Energy Holdings Inc

Energy & Power

Digital-energy platform to help homeowners live more sustainably

Hunt Energy Enterprises logo

Hunt Energy Enterprises

Energy & Power

Sistine Solar logo

Sistine Solar

Energy & Power

Sistine Solar — creates SolarSkin, an aesthetic overlay that transforms the look of any solar panel. It can make the panel blend in with a homeowner’s roof—no matter what color, pattern, or style.

Innovator Energy logo

Innovator Energy

Energy & Power

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

AdaViv logo

AdaViv

Food, Water, & Land

Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor

INpower logo

INpower

INpower — is a specialty insurance brokerage & risk management firm that knows that business innovation generates risk. Their risk management mission is simple: to provide their clients with deep insurance expertise, thoughtful enterprise risk management counsel, and fierce claims advocacy supported by offices in: Houston, Boston and Irvine, California.

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

PooPoof Inc logo

PooPoof Inc

Food, Water, & Land

The world’s first pocket-sized bioreactor

SEAROVER UNDERWATER ROBOTICS logo

SEAROVER UNDERWATER ROBOTICS

Manufacturing & Processing

AgZen logo

AgZen

Food, Water, & Land

AI that monitors leaf coverage during spraying to reduce pesticide usage

Form Energy logo

Form Energy

Energy & Power

Cost-effective, multi-day energy-storage solutions

Geckskin logo

Geckskin

Manufacturing & Processing

Sol Clarity logo

Sol Clarity

Energy & Power

Sol Clarity — Solar panels need cleaning but there’s not enough water for it – with EDS just flip a switch to watch dust disappear. Dust settles, they don’t!

Dexai Robotics logo

Dexai Robotics

Food, Water, & Land

Electrona Robotics logo

Electrona Robotics

Manufacturing & Processing

Singularity Energy logo

Singularity Energy

Energy & Power

Data and software solutions for grid decarbonization

Black Girls Do Engineer logo

Black Girls Do Engineer

Manufacturing & Processing

Black Girls Do Engineer Corporation - provides girls and young women ages 6 to 21 with mentoring, personal growth regimens, STEM projects and activities, STEM challenges, and guidance on career paths based on insight from professionals that are leaders in the STEM industry. The goal is to provide access, awareness, and advocate for two million Black-American girls to pursue STEM careers by the year 2050. The organization was created with the concern that Black-American girls and young women are not choosing STEM related careers, and their passion is to change the narrative and fix this issue.

GreenIRR logo

GreenIRR

Transportation & Logistics

M2X Energy logo

M2X Energy

Manufacturing & Processing

NONA Technologies logo

NONA Technologies

Food, Water, & Land

Desalinating brackish water with 60% less electricity, fewer chemical inputs, and less downtime

Arbor Energy Holdings Inc logo

Arbor Energy Holdings Inc

Energy & Power

Digital-energy platform to help homeowners live more sustainably

Hunt Energy Enterprises logo

Hunt Energy Enterprises

Energy & Power

Sistine Solar logo

Sistine Solar

Energy & Power

Sistine Solar — creates SolarSkin, an aesthetic overlay that transforms the look of any solar panel. It can make the panel blend in with a homeowner’s roof—no matter what color, pattern, or style.

Innovator Energy logo

Innovator Energy

Energy & Power

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

AdaViv logo

AdaViv

Food, Water, & Land

Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor

INpower logo

INpower

INpower — is a specialty insurance brokerage & risk management firm that knows that business innovation generates risk. Their risk management mission is simple: to provide their clients with deep insurance expertise, thoughtful enterprise risk management counsel, and fierce claims advocacy supported by offices in: Houston, Boston and Irvine, California.

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

PooPoof Inc logo

PooPoof Inc

Food, Water, & Land

The world’s first pocket-sized bioreactor

SEAROVER UNDERWATER ROBOTICS logo

SEAROVER UNDERWATER ROBOTICS

Manufacturing & Processing

AgZen logo

AgZen

Food, Water, & Land

AI that monitors leaf coverage during spraying to reduce pesticide usage

Form Energy logo

Form Energy

Energy & Power

Cost-effective, multi-day energy-storage solutions

Geckskin logo

Geckskin

Manufacturing & Processing

Sol Clarity logo

Sol Clarity

Energy & Power

Sol Clarity — Solar panels need cleaning but there’s not enough water for it – with EDS just flip a switch to watch dust disappear. Dust settles, they don’t!

Dexai Robotics logo

Dexai Robotics

Food, Water, & Land

Electrona Robotics logo

Electrona Robotics

Manufacturing & Processing

Singularity Energy logo

Singularity Energy

Energy & Power

Data and software solutions for grid decarbonization

Black Girls Do Engineer logo

Black Girls Do Engineer

Manufacturing & Processing

Black Girls Do Engineer Corporation - provides girls and young women ages 6 to 21 with mentoring, personal growth regimens, STEM projects and activities, STEM challenges, and guidance on career paths based on insight from professionals that are leaders in the STEM industry. The goal is to provide access, awareness, and advocate for two million Black-American girls to pursue STEM careers by the year 2050. The organization was created with the concern that Black-American girls and young women are not choosing STEM related careers, and their passion is to change the narrative and fix this issue.

GreenIRR logo

GreenIRR

Transportation & Logistics

M2X Energy logo

M2X Energy

Manufacturing & Processing

NONA Technologies logo

NONA Technologies

Food, Water, & Land

Desalinating brackish water with 60% less electricity, fewer chemical inputs, and less downtime

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