Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
Maxwellian logo

Maxwellian

Energy & Power

Maxwellian — empowers mobility, energy, and agricultural industries by providing autonomous sanitization and monitoring solutions using unique optical IoT technology to ensure data accessibility for safety and asset management.

MoveEV logo

MoveEV

Transportation & Logistics

Mitigating Scope 1 & 3 emissions for businesses while providing cost savings for employees

Torres Orbital Mining Inc (TOM) logo

Torres Orbital Mining Inc (TOM)

Infrastructure & Construction

Autonomous lunar excavation systems for dust-free regolith mining and space operations

Agira logo

Agira

Energy & Power

Agira Photonics — designs optical films for superior light management. Applications requiring highly collimated light with minimal chromatic aberration, such as LED lighting and displays, can be made more efficient with Agira’s film technology.

Biosfera logo

Biosfera

Manufacturing & Processing

Carbonova logo

Carbonova

Manufacturing & Processing

Carbonova has a unique solution to solidify carbon emissions and lock them permanently in solid carbon nanofibers. To date, 2980 businesses and financial institutions are taking action toward net-zero emissions by 2040 working with the Science-Based Targets initiative (SBTi). Our solution monetizes carbon emissions into solid carbon for our everyday products such as building materials and plastics. Currently solid carbon is extracted from naturally occurring and confined resources such as graphite or oils.

Embue logo

Embue

Infrastructure & Construction

eologix sensor technology logo

eologix sensor technology

Energy & Power

NONA Technologies logo

NONA Technologies

Food, Water, & Land

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

Aquasaic logo

Aquasaic

Food, Water, & Land

RUNWITHIT Synthetics Inc. logo

RUNWITHIT Synthetics Inc.

Energy & Power

Corvus Robotics logo

Corvus Robotics

Manufacturing & Processing

HarvestAi logo

HarvestAi

Food, Water, & Land

Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning

Arco Technologies Inc logo

Arco Technologies Inc

Energy & Power

Arco Technologies Inc — has 23 years of experience in the electrochemistry industry, developing fuel cells and electrolyzers.

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.

Terrapin Geothermics logo

Terrapin Geothermics

Energy & Power

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

Verdox Inc logo

Verdox Inc

Manufacturing & Processing

Verdox — is making scalable, cost-effective carbon capture and removal a reality. Founded in late 2019 by Dr. Brian Baynes, Prof. T. Alan Hatton, and Dr. Sahag Voskian, the company is commercializing its electroswing adsorption (ESA) platform technology, originally developed at MIT, to remove carbon dioxide from industrial emissions and the air with 70% energy savings versus conventional approaches.

Solas Capture logo

Solas Capture

Solas Capture is developing a sunlight-powered process for sustainable lithium carbonate production using novel photobase chemistry. Our technology converts lithium brines and CO₂ into battery-grade materials with lower energy use, reduced waste, and a significantly smaller environmental footprint than conventional methods.

Haffner Energy logo

Haffner Energy

Energy & Power

Producing renewable energy via waste-biomass thermolysis

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.

Maxwellian logo

Maxwellian

Energy & Power

Maxwellian — empowers mobility, energy, and agricultural industries by providing autonomous sanitization and monitoring solutions using unique optical IoT technology to ensure data accessibility for safety and asset management.

MoveEV logo

MoveEV

Transportation & Logistics

Mitigating Scope 1 & 3 emissions for businesses while providing cost savings for employees

Torres Orbital Mining Inc (TOM) logo

Torres Orbital Mining Inc (TOM)

Infrastructure & Construction

Autonomous lunar excavation systems for dust-free regolith mining and space operations

Agira logo

Agira

Energy & Power

Agira Photonics — designs optical films for superior light management. Applications requiring highly collimated light with minimal chromatic aberration, such as LED lighting and displays, can be made more efficient with Agira’s film technology.

Biosfera logo

Biosfera

Manufacturing & Processing

Carbonova logo

Carbonova

Manufacturing & Processing

Carbonova has a unique solution to solidify carbon emissions and lock them permanently in solid carbon nanofibers. To date, 2980 businesses and financial institutions are taking action toward net-zero emissions by 2040 working with the Science-Based Targets initiative (SBTi). Our solution monetizes carbon emissions into solid carbon for our everyday products such as building materials and plastics. Currently solid carbon is extracted from naturally occurring and confined resources such as graphite or oils.

Embue logo

Embue

Infrastructure & Construction

eologix sensor technology logo

eologix sensor technology

Energy & Power

NONA Technologies logo

NONA Technologies

Food, Water, & Land

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

Aquasaic logo

Aquasaic

Food, Water, & Land

RUNWITHIT Synthetics Inc. logo

RUNWITHIT Synthetics Inc.

Energy & Power

Corvus Robotics logo

Corvus Robotics

Manufacturing & Processing

HarvestAi logo

HarvestAi

Food, Water, & Land

Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning

Arco Technologies Inc logo

Arco Technologies Inc

Energy & Power

Arco Technologies Inc — has 23 years of experience in the electrochemistry industry, developing fuel cells and electrolyzers.

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.

Terrapin Geothermics logo

Terrapin Geothermics

Energy & Power

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

Verdox Inc logo

Verdox Inc

Manufacturing & Processing

Verdox — is making scalable, cost-effective carbon capture and removal a reality. Founded in late 2019 by Dr. Brian Baynes, Prof. T. Alan Hatton, and Dr. Sahag Voskian, the company is commercializing its electroswing adsorption (ESA) platform technology, originally developed at MIT, to remove carbon dioxide from industrial emissions and the air with 70% energy savings versus conventional approaches.

Solas Capture logo

Solas Capture

Solas Capture is developing a sunlight-powered process for sustainable lithium carbonate production using novel photobase chemistry. Our technology converts lithium brines and CO₂ into battery-grade materials with lower energy use, reduced waste, and a significantly smaller environmental footprint than conventional methods.

Haffner Energy logo

Haffner Energy

Energy & Power

Producing renewable energy via waste-biomass thermolysis

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.

Moonshot Compost logo

Moonshot Compost

Manufacturing & Processing

Moonshot Compost — collects and consolidates food waste for composting from businesses and residents, with a focus on data creation and management.

SomEV logo

SomEV

Energy & Power

SomEV — provides a wait-less charging network for light electric vehicles, using swappable batteries paired with a smart battery swap kiosk.

QuantAQ logo

QuantAQ

Infrastructure & Construction

Air quality-monitoring networks that combine IoT hardware, machine learning, and user-friendly software design

ClearTrace logo

ClearTrace

Energy & Power

Product suite for traceable, end-to-end data management of electricity and certificate transactions

SolarKal logo

SolarKal

Energy & Power

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

Mars Materials logo

Mars Materials

Manufacturing & Processing

Converting CO₂ and biomass into acrylonitrile

XMtrace logo

XMtrace

Manufacturing & Processing

Low-cost methane monitoring with real-time detection and autonomous response

Cyvl logo

Cyvl

Infrastructure & Construction

Cyvl.ai (formerly Roadgnar) — helps cities and businesses better manage their physical infrastructure assets like roads, bridges, sidewalks, buildings, and more with distributed data collection devices and machine learning.

Nexus Circular logo

Nexus Circular

Manufacturing & Processing

ONEPREDICT logo

ONEPREDICT

Manufacturing & Processing

Predicting and diagnosing the status of key industrial assets for the energy and manufacturing industries

Type One Energy logo

Type One Energy

Energy & Power

Phlair logo

Phlair

Manufacturing & Processing

Renewable-energy-powered DAC system using an electrochemical process for acid and base generation

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.

Sheetak logo

Sheetak

Manufacturing & Processing

Based in Austin, Texas, Sheetak develops advanced thermoelectric, solid-state cooling, and energy harvesting technologies for high-performance electronics. With expertise in thermoelectric materials, device engineering, and U.S.-based manufacturing, Sheetak provides precision thermal management solutions for applications in photonics, telecommunications, aerospace, defense, computing, and medical systems.

Apitronics logo

Apitronics

Food, Water, & Land

Optigon logo

Optigon

Energy & Power

Rapid, contactless characterization for assessing performance during photovoltaic solar cell fabrication

KP Labs logo

KP Labs

Manufacturing & Processing

Modular, biomembrane-based systems for on-site recovery of critical metals from e-waste and industrial residues

Element Resources logo

Element Resources

Energy & Power

Developing large-scale green hydrogen projects

QuEra Computing logo

QuEra Computing

Folia Materials logo

Folia Materials

Manufacturing & Processing

Folia Materials — is creating a safer, cleaner, and healthier world with its antiviral paper.

Moonshot Compost logo

Moonshot Compost

Manufacturing & Processing

Moonshot Compost — collects and consolidates food waste for composting from businesses and residents, with a focus on data creation and management.

SomEV logo

SomEV

Energy & Power

SomEV — provides a wait-less charging network for light electric vehicles, using swappable batteries paired with a smart battery swap kiosk.

QuantAQ logo

QuantAQ

Infrastructure & Construction

Air quality-monitoring networks that combine IoT hardware, machine learning, and user-friendly software design

ClearTrace logo

ClearTrace

Energy & Power

Product suite for traceable, end-to-end data management of electricity and certificate transactions

SolarKal logo

SolarKal

Energy & Power

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

Mars Materials logo

Mars Materials

Manufacturing & Processing

Converting CO₂ and biomass into acrylonitrile

XMtrace logo

XMtrace

Manufacturing & Processing

Low-cost methane monitoring with real-time detection and autonomous response

Cyvl logo

Cyvl

Infrastructure & Construction

Cyvl.ai (formerly Roadgnar) — helps cities and businesses better manage their physical infrastructure assets like roads, bridges, sidewalks, buildings, and more with distributed data collection devices and machine learning.

Nexus Circular logo

Nexus Circular

Manufacturing & Processing

ONEPREDICT logo

ONEPREDICT

Manufacturing & Processing

Predicting and diagnosing the status of key industrial assets for the energy and manufacturing industries

Type One Energy logo

Type One Energy

Energy & Power

Phlair logo

Phlair

Manufacturing & Processing

Renewable-energy-powered DAC system using an electrochemical process for acid and base generation

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.

Sheetak logo

Sheetak

Manufacturing & Processing

Based in Austin, Texas, Sheetak develops advanced thermoelectric, solid-state cooling, and energy harvesting technologies for high-performance electronics. With expertise in thermoelectric materials, device engineering, and U.S.-based manufacturing, Sheetak provides precision thermal management solutions for applications in photonics, telecommunications, aerospace, defense, computing, and medical systems.

Apitronics logo

Apitronics

Food, Water, & Land

Optigon logo

Optigon

Energy & Power

Rapid, contactless characterization for assessing performance during photovoltaic solar cell fabrication

KP Labs logo

KP Labs

Manufacturing & Processing

Modular, biomembrane-based systems for on-site recovery of critical metals from e-waste and industrial residues

Element Resources logo

Element Resources

Energy & Power

Developing large-scale green hydrogen projects

QuEra Computing logo

QuEra Computing

Folia Materials logo

Folia Materials

Manufacturing & Processing

Folia Materials — is creating a safer, cleaner, and healthier world with its antiviral paper.

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