Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
Polymer-X logo

Polymer-X

Manufacturing & Processing

Electrifying sustainable chemical production from waste and hydrocarbons

Energiency logo

Energiency

Manufacturing & Processing

Energy intelligence for manufacturing

Loci Controls logo

Loci Controls

Food, Water, & Land

Automated monitoring and control of landfill gas collection to harvest energy from trash

Raise Green logo

Raise Green

Energy & Power

Raise Green — helps make it easy to start your own solar energy project or climate action company. Anyone can start a project on Raise Green and bring clean energy to their business or community.

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.

Heliotrope Photonics logo

Heliotrope Photonics

Energy & Power

Coating technology that enhances solar-panel performance by transforming wasted sunlight

7Analytics logo

7Analytics

Infrastructure & Construction

7Analytics is a climate-tech startup developing superior high-precision predictive models for floods, enhancing urban resilience to climate change. Our mission is to empower asset owners, insurance companies and governance with the tools needed to mitigate the impacts of extreme weather events.

Lobster Robotics logo

Lobster Robotics

Food, Water, & Land

Lobster Robotics — develops lightweight, low-cost, fast robots for visual surveying to lower the cost of surveying in offshore wind farms.

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.

Littoral Power Systems logo

Littoral Power Systems

Energy & Power

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

H2Pro logo

H2Pro

Energy & Power

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

PolyQor (Innova8e) logo

PolyQor (Innova8e)

Manufacturing & Processing

Concept Loop is dedicated to repurposing low-value post-industrial and post-consumer plastic waste into sustainable building materials. Our flagship product, EcoGrete, is used in the production of high-strength paver blocks and tiles, offering an eco-friendly solution while reducing environmental impact.

Transocean logo

Transocean

Leading offshore drilling company

SEEDiA logo

SEEDiA

Energy & Power

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

LineVision logo

LineVision

Energy & Power

LineVision — combines advanced non-contact sensor and analytics technologies to give utilities more reliability, capacity, flexibility and resiliency on their transmission lines.

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.

Pressure Core logo

Pressure Core

Manufacturing & Processing

Pressure Core — is a development company focused on transforming industrial waste pressure into emission-free power. The company simplifies project development for host facilities by offering to buy their waste stream instead of selling them a project.

CarbonBlue logo

CarbonBlue

Food, Water, & Land

Chemical process that mineralizes and extracts CO₂ from water, which then reabsorbs more atmospheric CO₂

Planckton Data logo

Planckton Data

Manufacturing & Processing

Planckton Data — is making a platform that is built to manage the entire carbon data lifecycle by automating data collection and conversion and producing insights quickly without the need to make extensive changes to existing systems

WeaveGrid logo

WeaveGrid

Energy & Power

WeaveGrid — is a software company that enables wide scale electric vehicle adoption by solving one of the most critical emerging electrification challenges — connecting a growing wave of electric vehicles to an electric grid that was not designed to support the high power needs of widespread charging.

Polymer-X logo

Polymer-X

Manufacturing & Processing

Electrifying sustainable chemical production from waste and hydrocarbons

Energiency logo

Energiency

Manufacturing & Processing

Energy intelligence for manufacturing

Loci Controls logo

Loci Controls

Food, Water, & Land

Automated monitoring and control of landfill gas collection to harvest energy from trash

Raise Green logo

Raise Green

Energy & Power

Raise Green — helps make it easy to start your own solar energy project or climate action company. Anyone can start a project on Raise Green and bring clean energy to their business or community.

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.

Heliotrope Photonics logo

Heliotrope Photonics

Energy & Power

Coating technology that enhances solar-panel performance by transforming wasted sunlight

7Analytics logo

7Analytics

Infrastructure & Construction

7Analytics is a climate-tech startup developing superior high-precision predictive models for floods, enhancing urban resilience to climate change. Our mission is to empower asset owners, insurance companies and governance with the tools needed to mitigate the impacts of extreme weather events.

Lobster Robotics logo

Lobster Robotics

Food, Water, & Land

Lobster Robotics — develops lightweight, low-cost, fast robots for visual surveying to lower the cost of surveying in offshore wind farms.

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.

Littoral Power Systems logo

Littoral Power Systems

Energy & Power

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

H2Pro logo

H2Pro

Energy & Power

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

PolyQor (Innova8e) logo

PolyQor (Innova8e)

Manufacturing & Processing

Concept Loop is dedicated to repurposing low-value post-industrial and post-consumer plastic waste into sustainable building materials. Our flagship product, EcoGrete, is used in the production of high-strength paver blocks and tiles, offering an eco-friendly solution while reducing environmental impact.

Transocean logo

Transocean

Leading offshore drilling company

SEEDiA logo

SEEDiA

Energy & Power

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

LineVision logo

LineVision

Energy & Power

LineVision — combines advanced non-contact sensor and analytics technologies to give utilities more reliability, capacity, flexibility and resiliency on their transmission lines.

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.

Pressure Core logo

Pressure Core

Manufacturing & Processing

Pressure Core — is a development company focused on transforming industrial waste pressure into emission-free power. The company simplifies project development for host facilities by offering to buy their waste stream instead of selling them a project.

CarbonBlue logo

CarbonBlue

Food, Water, & Land

Chemical process that mineralizes and extracts CO₂ from water, which then reabsorbs more atmospheric CO₂

Planckton Data logo

Planckton Data

Manufacturing & Processing

Planckton Data — is making a platform that is built to manage the entire carbon data lifecycle by automating data collection and conversion and producing insights quickly without the need to make extensive changes to existing systems

WeaveGrid logo

WeaveGrid

Energy & Power

WeaveGrid — is a software company that enables wide scale electric vehicle adoption by solving one of the most critical emerging electrification challenges — connecting a growing wave of electric vehicles to an electric grid that was not designed to support the high power needs of widespread charging.

EVLO Energy Storage logo

EVLO Energy Storage

Energy & Power

Energy-storage systems with advanced safety and sustainability features

Hyperframe logo

Hyperframe

Infrastructure & Construction

Building components designed to be installed without tools or skill, improving cost and efficiency

Embue logo

Embue

Infrastructure & Construction

Smart devices for portfolio-wide management of apartment buildings

SEAROVER UNDERWATER ROBOTICS logo

SEAROVER UNDERWATER ROBOTICS

Manufacturing & Processing

ZS2 Technologies logo

ZS2 Technologies

Manufacturing & Processing

ZS2 Technologies (Calgary, AB) creates magnesium-based advanced building products that can store up to 20 wt.% CO2 from proprietary carbon capture technology.

Electric Fish logo

Electric Fish

Energy & Power

Electric Fish — deploys NanoGrids at gas-stations for extreme-fast EV charging, and grid-scale energy-backup.

Hunt Energy Enterprises logo

Hunt Energy Enterprises

Energy & Power

Developing perovskite technology as a sustainable input for silicon

Axiom Optics logo

Axiom Optics

Manufacturing & Processing

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

Terrapin Geothermics logo

Terrapin Geothermics

Energy & Power

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

FluxWorks logo

FluxWorks

Manufacturing & Processing

Mechatronics company offering dual-use magnetic gears, magnetically geared actuators, sensors, and software

Metalmark Innovations logo

Metalmark Innovations

Transportation & Logistics

The first self-renewing air cleaner for commercial buildings

Sustonable logo

Sustonable

Manufacturing & Processing

Sustonable — mixes post-consumer recycled plastic bottles, recycled glass and natural stone to create a circular, high-quality surface material, that can be used for kitchen tops, wall panels and furniture purposes.

Innoveering logo

Innoveering

Manufacturing & Processing

Combining aerospace industry experience with the latest manufacturing techniques to solve engineering problems

Green Path Strategies logo

Green Path Strategies

Energy & Power

Communications services for organizations working to mitigate climate change

SICDrone logo

SICDrone

Transportation & Logistics

High-performance drone systems

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.

Autonomous Marine Systems logo

Autonomous Marine Systems

Food, Water, & Land

Wind- and solar-powered robotic boats to collect data from oceans with zero emissions

enaDyne logo

enaDyne

Manufacturing & Processing

enaDyne — develops non-thermal plasma catalysis reactors to convert CO2 into chemicals and fuels.

Nexus Circular logo

Nexus Circular

Manufacturing & Processing

Converting waste plastics to feedstocks for the circular economy

Cellsense logo

Cellsense

Manufacturing & Processing

Biodegradable beads and sequins made with algae and regenerated cellulose

EVLO Energy Storage logo

EVLO Energy Storage

Energy & Power

Energy-storage systems with advanced safety and sustainability features

Hyperframe logo

Hyperframe

Infrastructure & Construction

Building components designed to be installed without tools or skill, improving cost and efficiency

Embue logo

Embue

Infrastructure & Construction

Smart devices for portfolio-wide management of apartment buildings

SEAROVER UNDERWATER ROBOTICS logo

SEAROVER UNDERWATER ROBOTICS

Manufacturing & Processing

ZS2 Technologies logo

ZS2 Technologies

Manufacturing & Processing

ZS2 Technologies (Calgary, AB) creates magnesium-based advanced building products that can store up to 20 wt.% CO2 from proprietary carbon capture technology.

Electric Fish logo

Electric Fish

Energy & Power

Electric Fish — deploys NanoGrids at gas-stations for extreme-fast EV charging, and grid-scale energy-backup.

Hunt Energy Enterprises logo

Hunt Energy Enterprises

Energy & Power

Developing perovskite technology as a sustainable input for silicon

Axiom Optics logo

Axiom Optics

Manufacturing & Processing

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

Terrapin Geothermics logo

Terrapin Geothermics

Energy & Power

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

FluxWorks logo

FluxWorks

Manufacturing & Processing

Mechatronics company offering dual-use magnetic gears, magnetically geared actuators, sensors, and software

Metalmark Innovations logo

Metalmark Innovations

Transportation & Logistics

The first self-renewing air cleaner for commercial buildings

Sustonable logo

Sustonable

Manufacturing & Processing

Sustonable — mixes post-consumer recycled plastic bottles, recycled glass and natural stone to create a circular, high-quality surface material, that can be used for kitchen tops, wall panels and furniture purposes.

Innoveering logo

Innoveering

Manufacturing & Processing

Combining aerospace industry experience with the latest manufacturing techniques to solve engineering problems

Green Path Strategies logo

Green Path Strategies

Energy & Power

Communications services for organizations working to mitigate climate change

SICDrone logo

SICDrone

Transportation & Logistics

High-performance drone systems

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.

Autonomous Marine Systems logo

Autonomous Marine Systems

Food, Water, & Land

Wind- and solar-powered robotic boats to collect data from oceans with zero emissions

enaDyne logo

enaDyne

Manufacturing & Processing

enaDyne — develops non-thermal plasma catalysis reactors to convert CO2 into chemicals and fuels.

Nexus Circular logo

Nexus Circular

Manufacturing & Processing

Converting waste plastics to feedstocks for the circular economy

Cellsense logo

Cellsense

Manufacturing & Processing

Biodegradable beads and sequins made with algae and regenerated cellulose

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