Helping climatetech startupsTransformindustry faster

Halo Energy
Energy & Power

SpadXTech
Food, Water, & Land
SpadXTech — seeks to significantly reduce CO2 emissions through the manufacturing of various carbon negative cellulose-based materials.

BlueTec Energy
Energy & Power

RightHand Robotics
Transportation & Logistics

Heliotrope Photonics
Energy & Power
Coating technology that enhances solar-panel performance by transforming wasted sunlight

Freshr Technologies
Food, Water, & Land

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.

BlakBear
Food, Water, & Land

Bevi
Food, Water, & Land

R&B Technology
Manufacturing & Processing
R&B Technology (USA) Company Inc. — develops Ari, a cloud-based augmented intelligence software platform that analyzes data and creates holistic recommendations—and elegant visualizations—based on insights that are impossible to see otherwise.

WattGlass
Energy & Power

Veloce Energy
Energy & Power
Veloce Energy — develops technology to create intelligent, flexible, and scalable grid-edge energy networks (GrEEN). Initially focused on cost-reduction in EV charging stations, the Veloce FastGrid™ system uniquely combines energy storage, intelligence, a streamlined installation system, and a unique charging-infrastructure-as-a-service model to maximize and deliver customer value.

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.

Full Cycle Bioplastics
Manufacturing & Processing

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.

Seabound
Transportation & Logistics

Transocean

Arista Solutions

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.

Aquasaic
Food, Water, & Land

Halo Energy
Energy & Power

SpadXTech
Food, Water, & Land
SpadXTech — seeks to significantly reduce CO2 emissions through the manufacturing of various carbon negative cellulose-based materials.

BlueTec Energy
Energy & Power

RightHand Robotics
Transportation & Logistics

Heliotrope Photonics
Energy & Power
Coating technology that enhances solar-panel performance by transforming wasted sunlight

Freshr Technologies
Food, Water, & Land

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.

BlakBear
Food, Water, & Land

Bevi
Food, Water, & Land

R&B Technology
Manufacturing & Processing
R&B Technology (USA) Company Inc. — develops Ari, a cloud-based augmented intelligence software platform that analyzes data and creates holistic recommendations—and elegant visualizations—based on insights that are impossible to see otherwise.

WattGlass
Energy & Power

Veloce Energy
Energy & Power
Veloce Energy — develops technology to create intelligent, flexible, and scalable grid-edge energy networks (GrEEN). Initially focused on cost-reduction in EV charging stations, the Veloce FastGrid™ system uniquely combines energy storage, intelligence, a streamlined installation system, and a unique charging-infrastructure-as-a-service model to maximize and deliver customer value.

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.

Full Cycle Bioplastics
Manufacturing & Processing

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.

Seabound
Transportation & Logistics

Transocean

Arista Solutions

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.

Aquasaic
Food, Water, & Land

Heartland Industries
Manufacturing & Processing

Vistex Composites
Manufacturing & Processing
Vistex Composites is a manufacturing innovation company that has developed disruptive technology for the manufacture of advanced composite products. Our patented PFL™ process can be integrated into existing manufacturing plants, or finished products can be manufactured with Vistex's in-house manufacturing team.

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

Invested Development
Food, Water, & Land

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.

Lignium Energy
Energy & Power
Lignium Energy — transforms cow manure into combustion pellets, generating a certified and odorless product with a high calorific power that complies with all the regulations to be used.

Bodhi
Energy & Power
Bodhi — cultivates the bond between people and the energy that powers their lives. The company’s software platform empowers solar companies to deliver amazing customer experiences with ease. Bodhi automates communication and personalizes the homeowners’ experience, so that installers can focus on what they do best – executing projects, making more sales, and transforming communities around energy.

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

Infinite Cooling
Infrastructure & Construction
Infinite Cooling — reduces water consumption in industrial plants by capturing cooling tower plumes. The company has a patent-pending technology developed at MIT that uses electric fields to capture water from the plumes leaving cooling towers.

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.

ICODOS
Manufacturing & Processing
Scalable clean methanol to decarbonize transport and chemicals

Pecos Wind Power
Energy & Power
Pecos Wind Power — is reducing the cost of distributed wind power through the development of an 85kW community-scale wind turbine.

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.

Metalmark Innovations
Transportation & Logistics

HyperKelp
Food, Water, & Land
HyperKelp — produces the Kelp Smart Buoy—a hosted payload platform capable of carrying hundreds of sensors—that collects and transmits marine-level data for wind farmers, climate scientists, and military intelligence officials.

NBD Nano
Manufacturing & Processing
NBD Nano — utilizes biomimicry to create functional and durable surface coatings that improve water collection, transport, and repellency.

Carbon Negative Solutions
Infrastructure & Construction

Aja Labs
Manufacturing & Processing

Electra
Manufacturing & Processing
ElectraSteel's — mission is to electrify and decarbonize steelmaking using renewable energy with zero carbon dioxide emissions while lowering the energy intensity and cost.

Innoveering
Manufacturing & Processing

Heartland Industries
Manufacturing & Processing

Vistex Composites
Manufacturing & Processing
Vistex Composites is a manufacturing innovation company that has developed disruptive technology for the manufacture of advanced composite products. Our patented PFL™ process can be integrated into existing manufacturing plants, or finished products can be manufactured with Vistex's in-house manufacturing team.

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

Invested Development
Food, Water, & Land

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.

Lignium Energy
Energy & Power
Lignium Energy — transforms cow manure into combustion pellets, generating a certified and odorless product with a high calorific power that complies with all the regulations to be used.

Bodhi
Energy & Power
Bodhi — cultivates the bond between people and the energy that powers their lives. The company’s software platform empowers solar companies to deliver amazing customer experiences with ease. Bodhi automates communication and personalizes the homeowners’ experience, so that installers can focus on what they do best – executing projects, making more sales, and transforming communities around energy.

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

Infinite Cooling
Infrastructure & Construction
Infinite Cooling — reduces water consumption in industrial plants by capturing cooling tower plumes. The company has a patent-pending technology developed at MIT that uses electric fields to capture water from the plumes leaving cooling towers.

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.

ICODOS
Manufacturing & Processing
Scalable clean methanol to decarbonize transport and chemicals

Pecos Wind Power
Energy & Power
Pecos Wind Power — is reducing the cost of distributed wind power through the development of an 85kW community-scale wind turbine.

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.

Metalmark Innovations
Transportation & Logistics

HyperKelp
Food, Water, & Land
HyperKelp — produces the Kelp Smart Buoy—a hosted payload platform capable of carrying hundreds of sensors—that collects and transmits marine-level data for wind farmers, climate scientists, and military intelligence officials.

NBD Nano
Manufacturing & Processing
NBD Nano — utilizes biomimicry to create functional and durable surface coatings that improve water collection, transport, and repellency.

Carbon Negative Solutions
Infrastructure & Construction

Aja Labs
Manufacturing & Processing

Electra
Manufacturing & Processing
ElectraSteel's — mission is to electrify and decarbonize steelmaking using renewable energy with zero carbon dioxide emissions while lowering the energy intensity and cost.

Innoveering
Manufacturing & Processing




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.
Our Startups Have Raised Over $0B
All-time
0
Currently home to
0
0+
Countries Where
Startups Operate
0
New Jobs Created by Our Members, and Counting
Startups bring the breakthroughs. Corporate partners bring the scale, infrastructure, expertise, and capital to make them matter.
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.


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.

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.

Explore Investing
Tap into deal flow with the world’s largest community of climate and energy startups.






















