Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
Ohmium International logo

Ohmium International

Energy & Power

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.

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.

pH Matter logo

pH Matter

Energy & Power

Universal Matter Inc. logo

Universal Matter Inc.

Manufacturing & Processing

Producing graphene from carbon waste streams

Fervo Energy logo

Fervo Energy

Energy & Power

Fervo Energy — is a next-generation geothermal power developer, delivering 24/7 carbon-free energy.

Ranger Solar logo

Ranger Solar

Energy & Power

GreenLIB logo

GreenLIB

Manufacturing & Processing

VentureWell logo

VentureWell

FutureOn logo

FutureOn

Energy & Power

FutureOn — FutureOn's FieldTwin creates a dynamic and 3D geospatial common data environment across surface, subsea, and subsurface domains, with open API connectivity into third-party tools and existing customer workflows.

CarbonQuest logo

CarbonQuest

Infrastructure & Construction

ICODOS logo

ICODOS

Manufacturing & Processing

Scalable clean methanol to decarbonize transport and chemicals

Electrona Robotics logo

Electrona Robotics

Manufacturing & Processing

KUBO Greenhouse Projects logo

KUBO Greenhouse Projects

Food, Water, & Land

Hicor Technologies Inc. logo

Hicor Technologies Inc.

Energy & Power

Interface Polymers logo

Interface Polymers

Manufacturing & Processing

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.

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.

Cella Mineral Storage logo

Cella Mineral Storage

Manufacturing & Processing

Turning volcanic formations into reliable, low-cost CO₂ storage

C16 Biosciences logo

C16 Biosciences

Manufacturing & Processing

Ohmium International logo

Ohmium International

Energy & Power

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.

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.

pH Matter logo

pH Matter

Energy & Power

Universal Matter Inc. logo

Universal Matter Inc.

Manufacturing & Processing

Producing graphene from carbon waste streams

Fervo Energy logo

Fervo Energy

Energy & Power

Fervo Energy — is a next-generation geothermal power developer, delivering 24/7 carbon-free energy.

Ranger Solar logo

Ranger Solar

Energy & Power

GreenLIB logo

GreenLIB

Manufacturing & Processing

VentureWell logo

VentureWell

FutureOn logo

FutureOn

Energy & Power

FutureOn — FutureOn's FieldTwin creates a dynamic and 3D geospatial common data environment across surface, subsea, and subsurface domains, with open API connectivity into third-party tools and existing customer workflows.

CarbonQuest logo

CarbonQuest

Infrastructure & Construction

ICODOS logo

ICODOS

Manufacturing & Processing

Scalable clean methanol to decarbonize transport and chemicals

Electrona Robotics logo

Electrona Robotics

Manufacturing & Processing

KUBO Greenhouse Projects logo

KUBO Greenhouse Projects

Food, Water, & Land

Hicor Technologies Inc. logo

Hicor Technologies Inc.

Energy & Power

Interface Polymers logo

Interface Polymers

Manufacturing & Processing

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.

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.

Cella Mineral Storage logo

Cella Mineral Storage

Manufacturing & Processing

Turning volcanic formations into reliable, low-cost CO₂ storage

C16 Biosciences logo

C16 Biosciences

Manufacturing & Processing

Future logo

Future

Future — simplifies the transition to a net-zero economy for individuals and families. Future offers a set of financial tools and incentives for climate smart living. Future takes a 360°view of spending and generates individualized options to save money and reduce carbon emissions with their decision-engine.

FibreCoat logo

FibreCoat

Transportation & Logistics

InventWood logo

InventWood

Infrastructure & Construction

InventWood — offers MettleWood, a super-strong wood material (that's stronger than steel), a highly insulative wood material (as a green substitute for polystyrene) and even a transparent wood material.

Aquosmic Corporation logo

Aquosmic Corporation

Energy & Power

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

Euphree logo

Euphree

Transportation & Logistics

Electric bikes made fashionable.

Corumat logo

Corumat

Manufacturing & Processing

Public Grid logo

Public Grid

Energy & Power

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.

Hempitecture logo

Hempitecture

Manufacturing & Processing

Hempitecture (Ketchum, ID) is a manufacturer and distributor of biobased building materials, including their low embodied carbon insulation, HempWool®.

Hertha Metals Inc. logo

Hertha Metals Inc.

Energy & Power

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.

Green Path Strategies logo

Green Path Strategies

Energy & Power

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.

Dexai Robotics logo

Dexai Robotics

Food, Water, & Land

Reverse Energy Solutions logo

Reverse Energy Solutions

Transportation & Logistics

Our startup implements innovative mobile solutions for solar panel recycling, drastically reducing logistic costs by 90% through streamlined collection and transportation processes.

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.

MicroEra Power logo

MicroEra Power

Energy & Power

MicroEra Power — develops and manufactures THERMAplus, a hardware + software solution for smart Thermal Energy Storage for buildings.

Clean Crop Technologies logo

Clean Crop Technologies

Food, Water, & Land

Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity

Save Energy Systems logo

Save Energy Systems

Infrastructure & Construction

Launch Academy logo

Launch Academy

Future logo

Future

Future — simplifies the transition to a net-zero economy for individuals and families. Future offers a set of financial tools and incentives for climate smart living. Future takes a 360°view of spending and generates individualized options to save money and reduce carbon emissions with their decision-engine.

FibreCoat logo

FibreCoat

Transportation & Logistics

InventWood logo

InventWood

Infrastructure & Construction

InventWood — offers MettleWood, a super-strong wood material (that's stronger than steel), a highly insulative wood material (as a green substitute for polystyrene) and even a transparent wood material.

Aquosmic Corporation logo

Aquosmic Corporation

Energy & Power

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

Euphree logo

Euphree

Transportation & Logistics

Electric bikes made fashionable.

Corumat logo

Corumat

Manufacturing & Processing

Public Grid logo

Public Grid

Energy & Power

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.

Hempitecture logo

Hempitecture

Manufacturing & Processing

Hempitecture (Ketchum, ID) is a manufacturer and distributor of biobased building materials, including their low embodied carbon insulation, HempWool®.

Hertha Metals Inc. logo

Hertha Metals Inc.

Energy & Power

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.

Green Path Strategies logo

Green Path Strategies

Energy & Power

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.

Dexai Robotics logo

Dexai Robotics

Food, Water, & Land

Reverse Energy Solutions logo

Reverse Energy Solutions

Transportation & Logistics

Our startup implements innovative mobile solutions for solar panel recycling, drastically reducing logistic costs by 90% through streamlined collection and transportation processes.

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.

MicroEra Power logo

MicroEra Power

Energy & Power

MicroEra Power — develops and manufactures THERMAplus, a hardware + software solution for smart Thermal Energy Storage for buildings.

Clean Crop Technologies logo

Clean Crop Technologies

Food, Water, & Land

Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity

Save Energy Systems logo

Save Energy Systems

Infrastructure & Construction

Launch Academy logo

Launch Academy

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