Helping climatetech startupsTransformindustry faster

Black Mountain Metals
Manufacturing & Processing
Black Mountain Metals is a global battery metals mining company, specifically focused on sustainable nickel and copper mining for lithium ion battery cathodes.

GreenLabs Recycling
Manufacturing & Processing

Loop Chemicals
Manufacturing & Processing
Enabling localized production of ammonia at competitive prices and zero carbon footprint.

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

Green Path Strategies
Energy & Power

Sustainable America
Food, Water, & Land

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

Massachusetts Materials Technologies
Energy & Power
Seamlessly measuring the mechanical properties of pipelines without interruption

Skylark Wireless
Manufacturing & Processing
Far more than 5G: Skylark builds affordable, long-range, and high-speed wireless systems for rural broadband providers.

Stork, a Fluor Company

Global ROC
Food, Water, & Land
Global ROC — provides an innovative technology solution for cooling tower systems that reduces chemical consumption, saves water, and decreases energy costs.

Energy Toolbase
Energy & Power
Energy Toolbase — is an industry leading software platform that provides a cohesive suite of project modeling, energy storage control and asset monitoring products that enable solar and energy storage developers to deploy projects more efficiently.

Vecarius
Infrastructure & Construction
Heat-to-electricity technology to boost energy efficiency in mass markets

Encore CO2
Manufacturing & Processing
Converting captured CO₂ into valuable industrial molecules

frakktal
Manufacturing & Processing
Biobased polymer process to upend PVC overuse

Clean Crop Technologies
Food, Water, & Land
Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity

Diffraqtion
Manufacturing & Processing
Machine Vision at the Quantum Limit

Alloy Enterprises
Manufacturing & Processing
Alloy Enterprises — is developing a new manufacturing method to change the way the world makes aluminum parts.

Beacon Climate Innovations
Energy & Power
Filling gaps between the frontlines of climate change and the emerging technologies that can best address them

SkyH2O
Food, Water, & Land
Atmospheric water generation for commercial and government projects

Black Mountain Metals
Manufacturing & Processing
Black Mountain Metals is a global battery metals mining company, specifically focused on sustainable nickel and copper mining for lithium ion battery cathodes.

GreenLabs Recycling
Manufacturing & Processing

Loop Chemicals
Manufacturing & Processing
Enabling localized production of ammonia at competitive prices and zero carbon footprint.

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

Green Path Strategies
Energy & Power

Sustainable America
Food, Water, & Land

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

Massachusetts Materials Technologies
Energy & Power
Seamlessly measuring the mechanical properties of pipelines without interruption

Skylark Wireless
Manufacturing & Processing
Far more than 5G: Skylark builds affordable, long-range, and high-speed wireless systems for rural broadband providers.

Stork, a Fluor Company

Global ROC
Food, Water, & Land
Global ROC — provides an innovative technology solution for cooling tower systems that reduces chemical consumption, saves water, and decreases energy costs.

Energy Toolbase
Energy & Power
Energy Toolbase — is an industry leading software platform that provides a cohesive suite of project modeling, energy storage control and asset monitoring products that enable solar and energy storage developers to deploy projects more efficiently.

Vecarius
Infrastructure & Construction
Heat-to-electricity technology to boost energy efficiency in mass markets

Encore CO2
Manufacturing & Processing
Converting captured CO₂ into valuable industrial molecules

frakktal
Manufacturing & Processing
Biobased polymer process to upend PVC overuse

Clean Crop Technologies
Food, Water, & Land
Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity

Diffraqtion
Manufacturing & Processing
Machine Vision at the Quantum Limit

Alloy Enterprises
Manufacturing & Processing
Alloy Enterprises — is developing a new manufacturing method to change the way the world makes aluminum parts.

Beacon Climate Innovations
Energy & Power
Filling gaps between the frontlines of climate change and the emerging technologies that can best address them

SkyH2O
Food, Water, & Land
Atmospheric water generation for commercial and government projects

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.

Phoenix Tailings
Manufacturing & Processing
Waste-free, net-zero, cost-competitive rare-earth-metal refining

Helix Earth Technologies
Infrastructure & Construction
Improving energy efficiency and minimizing emissions through a droplet-capture filtration system

Metalmark Innovations
Transportation & Logistics

Eos Loan
Energy & Power

Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals

Energy Web Foundation
Energy & Power

PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells

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.

Eugenie
Manufacturing & Processing
Eugenie — has developed an AI-based predictive maintenance platform that reduces 3% of the total HC production losses suffered by upstream oil and gas operations, thus helping to reduce billions of metric tons of GHG emissions annually.

KP Labs
Manufacturing & Processing
Modular, biomembrane-based systems for on-site recovery of critical metals from e-waste and industrial residues

9T Labs
Manufacturing & Processing

SnoFox Sciences
Transportation & Logistics
SnoFox Sciences — is developing a platform that provides actionable insights such as fault classification and predictive maintenance recommendations to the operators and stakeholders responsible for the performance and reliability of refrigerated spaces.

SiTration
Manufacturing & Processing
SiTration — is developing a novel membrane filtration technology that combines durability and performance at low cost to enable highly efficient separations in today’s mega-industries.

SEAROVER UNDERWATER ROBOTICS
Manufacturing & Processing

Save Energy Systems
Infrastructure & Construction

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.

Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis

Energy Well Texas
Energy & Power
Our mission is to strengthen communities by helping millions of people switch to fairer, more resilient, 100% clean energy.

SolarKal
Energy & Power
The largest solar energy marketplace in the U.S., connecting organizations to solar providers

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.

Phoenix Tailings
Manufacturing & Processing
Waste-free, net-zero, cost-competitive rare-earth-metal refining

Helix Earth Technologies
Infrastructure & Construction
Improving energy efficiency and minimizing emissions through a droplet-capture filtration system

Metalmark Innovations
Transportation & Logistics

Eos Loan
Energy & Power

Catalyxx
Manufacturing & Processing
Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals

Energy Web Foundation
Energy & Power

PV Nano Cell
Energy & Power
Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells

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.

Eugenie
Manufacturing & Processing
Eugenie — has developed an AI-based predictive maintenance platform that reduces 3% of the total HC production losses suffered by upstream oil and gas operations, thus helping to reduce billions of metric tons of GHG emissions annually.

KP Labs
Manufacturing & Processing
Modular, biomembrane-based systems for on-site recovery of critical metals from e-waste and industrial residues

9T Labs
Manufacturing & Processing

SnoFox Sciences
Transportation & Logistics
SnoFox Sciences — is developing a platform that provides actionable insights such as fault classification and predictive maintenance recommendations to the operators and stakeholders responsible for the performance and reliability of refrigerated spaces.

SiTration
Manufacturing & Processing
SiTration — is developing a novel membrane filtration technology that combines durability and performance at low cost to enable highly efficient separations in today’s mega-industries.

SEAROVER UNDERWATER ROBOTICS
Manufacturing & Processing

Save Energy Systems
Infrastructure & Construction

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.

Licube
Manufacturing & Processing
Sustainable lithium recovery through electrodialysis

Energy Well Texas
Energy & Power
Our mission is to strengthen communities by helping millions of people switch to fairer, more resilient, 100% clean energy.

SolarKal
Energy & Power
The largest solar energy marketplace in the U.S., connecting organizations to solar providers




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.
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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.


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Access the most concentrated pipeline of vetted climatetech companies in North America. Partner on pilots, invest, or join as a corporate sponsor.

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