Helping climatetech startupsTransformindustry faster

Enerbrain
Infrastructure & Construction

Peak Power
Energy & Power
Energy-storage optimization software for commercial and industrial customers and energy storage project developers

SEAROVER UNDERWATER ROBOTICS
Manufacturing & Processing

Onboard Data
Infrastructure & Construction
Onboard — offers software analytics for HVAC service providers.

SparkCharge
Transportation & Logistics
SparkCharge — is creating a more efficient and connected world of transportation by eliminating range anxiety with its ultra-fast, portable, and modular charging station for electric vehicles.

Night Vision Technology Solutions (NVTS)

Energy Dome
Energy & Power
EnergyDome — has ideated and patented a revolutionary technology for large-scale and long-duration energy storage: The CO2 Battery.

Boronite
Manufacturing & Processing

Lumafield
Manufacturing & Processing
Lumafield — is making an easy-to-use CT scanner and powerful, cloud-based analysis software that can solve tough engineering challenges at every stage of the product development process.

Revora Materials
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery

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.

Topl
Infrastructure & Construction
Topl is an impact technology company building a blockchain that empowers businesses to prove and monetize ethical and sustainable practices.

Eden GeoPower
Energy & Power
Electrical Reservoir Stimulation to enhance subsurface permeability

Circular Materials
Manufacturing & Processing
Critical raw materials from industrial wastewater

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.

Kornit Digital
Manufacturing & Processing
Kornit Digital (formerly Voxel8) — is developing digital manufacturing systems that revolutionize how footwear and athletic apparel are designed, manufactured, and delivered to consumers.

Revterra
Energy & Power
Kinetic stabilizer for instant grid stabilization for industrial manufacturing, data centers, and rapid EV charging

PolyJoule
Energy & Power
PolyJoule — develops low-cost, high-power energy storage designed to strengthen the power grid.

Kanin Energy
Energy & Power
Monetizing industrial waste heat with reduced deployment risk via third-party financing

ClearTrace
Energy & Power
Product suite for traceable, end-to-end data management of electricity and certificate transactions

Enerbrain
Infrastructure & Construction

Peak Power
Energy & Power
Energy-storage optimization software for commercial and industrial customers and energy storage project developers

SEAROVER UNDERWATER ROBOTICS
Manufacturing & Processing

Onboard Data
Infrastructure & Construction
Onboard — offers software analytics for HVAC service providers.

SparkCharge
Transportation & Logistics
SparkCharge — is creating a more efficient and connected world of transportation by eliminating range anxiety with its ultra-fast, portable, and modular charging station for electric vehicles.

Night Vision Technology Solutions (NVTS)

Energy Dome
Energy & Power
EnergyDome — has ideated and patented a revolutionary technology for large-scale and long-duration energy storage: The CO2 Battery.

Boronite
Manufacturing & Processing

Lumafield
Manufacturing & Processing
Lumafield — is making an easy-to-use CT scanner and powerful, cloud-based analysis software that can solve tough engineering challenges at every stage of the product development process.

Revora Materials
Energy & Power
Carbon-mineralization technology with high-value minerals and metals recovery

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.

Topl
Infrastructure & Construction
Topl is an impact technology company building a blockchain that empowers businesses to prove and monetize ethical and sustainable practices.

Eden GeoPower
Energy & Power
Electrical Reservoir Stimulation to enhance subsurface permeability

Circular Materials
Manufacturing & Processing
Critical raw materials from industrial wastewater

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.

Kornit Digital
Manufacturing & Processing
Kornit Digital (formerly Voxel8) — is developing digital manufacturing systems that revolutionize how footwear and athletic apparel are designed, manufactured, and delivered to consumers.

Revterra
Energy & Power
Kinetic stabilizer for instant grid stabilization for industrial manufacturing, data centers, and rapid EV charging

PolyJoule
Energy & Power
PolyJoule — develops low-cost, high-power energy storage designed to strengthen the power grid.

Kanin Energy
Energy & Power
Monetizing industrial waste heat with reduced deployment risk via third-party financing

ClearTrace
Energy & Power
Product suite for traceable, end-to-end data management of electricity and certificate transactions

CERT Systems
Manufacturing & Processing

Matterworks
Manufacturing & Processing
Enabling metabolomics assays that are fast, broad, and can characterize diverse chemical classes with a single setup

QD Solar
Energy & Power

Quantum Diamond Technologies
Manufacturing & Processing

Pre Framing Corp
Infrastructure & Construction

Candid Intelligence
Infrastructure & Construction
Accelerating pre-construction engineering with Agentic AI

DirtSat
Food, Water, & Land
DirtSat — looks at ways space resources can have profound impacts on some of our planet’s biggest challenges and is reframing urban food production pathways and climate resilience for Smart City adoption.

Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market

HarvestAi
Food, Water, & Land
Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning

Sora Fuel Corporation
Transportation & Logistics
Cost-effective sustainable aviation fuel

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

Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices

3D Architech, Inc.
Manufacturing & Processing
Ultra-fine and gel-based metal manufacturing, creating high-efficiency microstructures for cooling and clean energy

Packwise
Manufacturing & Processing
IIoT sensors combined with a software and analytics platform to optimize industrial supply chains

AeroNero
Food, Water, & Land
Water for all, always Empowering sustainable living through innovative air-water generation technology, providing clean and accessible water to communities while combating climate change.

Focis AI
FocisAI uses AI and 3D scan data to automatically identify and map infrastructure in industrial facilities, turning complex environments into actionable digital intelligence. Our platform enables faster inspections, improved safety, and more efficient operations across heavy industry.

RailPod
Transportation & Logistics

RISE Robotics
Manufacturing & Processing

CarbonQuest
Infrastructure & Construction

RightHand Robotics
Transportation & Logistics

CERT Systems
Manufacturing & Processing

Matterworks
Manufacturing & Processing
Enabling metabolomics assays that are fast, broad, and can characterize diverse chemical classes with a single setup

QD Solar
Energy & Power

Quantum Diamond Technologies
Manufacturing & Processing

Pre Framing Corp
Infrastructure & Construction

Candid Intelligence
Infrastructure & Construction
Accelerating pre-construction engineering with Agentic AI

DirtSat
Food, Water, & Land
DirtSat — looks at ways space resources can have profound impacts on some of our planet’s biggest challenges and is reframing urban food production pathways and climate resilience for Smart City adoption.

Ohm Analytics
Energy & Power
Aggregating clean energy data based on thousands of sources for visibility and intelligence in the U.S. solar market

HarvestAi
Food, Water, & Land
Computer vision and AI to provide greenhouse operators with automated data for optimized harvest planning

Sora Fuel Corporation
Transportation & Logistics
Cost-effective sustainable aviation fuel

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

Haystack Ag
Food, Water, & Land
High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices

3D Architech, Inc.
Manufacturing & Processing
Ultra-fine and gel-based metal manufacturing, creating high-efficiency microstructures for cooling and clean energy

Packwise
Manufacturing & Processing
IIoT sensors combined with a software and analytics platform to optimize industrial supply chains

AeroNero
Food, Water, & Land
Water for all, always Empowering sustainable living through innovative air-water generation technology, providing clean and accessible water to communities while combating climate change.

Focis AI
FocisAI uses AI and 3D scan data to automatically identify and map infrastructure in industrial facilities, turning complex environments into actionable digital intelligence. Our platform enables faster inspections, improved safety, and more efficient operations across heavy industry.

RailPod
Transportation & Logistics

RISE Robotics
Manufacturing & Processing

CarbonQuest
Infrastructure & Construction

RightHand Robotics
Transportation & Logistics




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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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.

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