Helping entrepreneursTransformindustry

Greentown member working in a wet lab
Greentown community members collaborating
Greentown member pipetting in a lab
Greentown members at work in the incubator
[ 01 ]Who We Are

Breakthroughs don't scale in isolation.

They scale when entire ecosystems move together: founders, corporates, capital, policy, and communities, united by a shared purpose of propelling groundbreaking technologies to market, at the pace the world requires.

Transforming the systems that power, move, feed, and connect the world is the work of our time, and startups hold the key.

Our Vision

Greentown is a 501(c)(3) non-profit organization

[ 03 ]Our Startups

Our Member Companies

View All Startups
Pike Robotics logo

Pike Robotics

Energy & Power

Wall-crawling robots with advanced sensors to perform in-service inspections inside hazardous spaces

QuantAQ logo

QuantAQ

Infrastructure & Construction

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

Massachusetts Materials Technologies logo

Massachusetts Materials Technologies

Energy & Power

Seamlessly measuring the mechanical properties of pipelines without interruption

Diffraqtion logo

Diffraqtion

Energy & Power

AI cameras powering ultra high-resolution Earth and Space imaging

Thalon Materials logo

Thalon Materials

SkyH2O logo

SkyH2O

Food, Water, & Land

Atmospheric water generation for commercial and government projects

Loop CO2 logo

Loop CO2

Manufacturing & Processing

Transforming CO₂ into sustainable polymers to create fully recyclable materials

Imperium Technologies logo

Imperium Technologies

Energy & Power

Reducing industrial heating emissions with electrochemical processes

Glimpse Engineering logo

Glimpse Engineering

Manufacturing & Processing

Visualizing battery scans and continuously monitoring key battery-design features

eSki Watercraft logo

eSki Watercraft

Energy & Power

Electric personal watercraft

Endeavor Composites logo

Endeavor Composites

Manufacturing & Processing

Sustainably repurposing landfill-destined post-industrial fibers into semi-finished goods for the composite industry

Anning Corporation logo

Anning Corporation

Energy & Power

Targeting iron-rich rocks to produce hydrogen

Geokiln Energy Innovation logo

Geokiln Energy Innovation

Energy & Power

Breakthrough low-cost, low-carbon hydrogen production approach that accelerates natural subsurface mineral reactions

Highland Park Technologies logo

Highland Park Technologies

Infrastructure & Construction

Insulated cladding and building envelope retrofits at a fraction of the cost

Biospheric AI logo

Biospheric AI

Energy & Power

High-resolution, building-level energy demand forecasts for utilities and more

Reframe Systems logo

Reframe Systems

Infrastructure & Construction

Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

Eden GeoPower logo

Eden GeoPower

Energy & Power

Electrical Reservoir Stimulation to enhance subsurface permeability

Revterra logo

Revterra

Energy & Power

Kinetic stabilizer for instant grid stabilization for industrial manufacturing, data centers, and rapid EV charging

SolarKal logo

SolarKal

Energy & Power

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

Catalyxx logo

Catalyxx

Manufacturing & Processing

Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals

Pike Robotics logo

Pike Robotics

Energy & Power

Wall-crawling robots with advanced sensors to perform in-service inspections inside hazardous spaces

QuantAQ logo

QuantAQ

Infrastructure & Construction

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

Massachusetts Materials Technologies logo

Massachusetts Materials Technologies

Energy & Power

Seamlessly measuring the mechanical properties of pipelines without interruption

Diffraqtion logo

Diffraqtion

Energy & Power

AI cameras powering ultra high-resolution Earth and Space imaging

Thalon Materials logo

Thalon Materials

SkyH2O logo

SkyH2O

Food, Water, & Land

Atmospheric water generation for commercial and government projects

Loop CO2 logo

Loop CO2

Manufacturing & Processing

Transforming CO₂ into sustainable polymers to create fully recyclable materials

Imperium Technologies logo

Imperium Technologies

Energy & Power

Reducing industrial heating emissions with electrochemical processes

Glimpse Engineering logo

Glimpse Engineering

Manufacturing & Processing

Visualizing battery scans and continuously monitoring key battery-design features

eSki Watercraft logo

eSki Watercraft

Energy & Power

Electric personal watercraft

Endeavor Composites logo

Endeavor Composites

Manufacturing & Processing

Sustainably repurposing landfill-destined post-industrial fibers into semi-finished goods for the composite industry

Anning Corporation logo

Anning Corporation

Energy & Power

Targeting iron-rich rocks to produce hydrogen

Geokiln Energy Innovation logo

Geokiln Energy Innovation

Energy & Power

Breakthrough low-cost, low-carbon hydrogen production approach that accelerates natural subsurface mineral reactions

Highland Park Technologies logo

Highland Park Technologies

Infrastructure & Construction

Insulated cladding and building envelope retrofits at a fraction of the cost

Biospheric AI logo

Biospheric AI

Energy & Power

High-resolution, building-level energy demand forecasts for utilities and more

Reframe Systems logo

Reframe Systems

Infrastructure & Construction

Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

Eden GeoPower logo

Eden GeoPower

Energy & Power

Electrical Reservoir Stimulation to enhance subsurface permeability

Revterra logo

Revterra

Energy & Power

Kinetic stabilizer for instant grid stabilization for industrial manufacturing, data centers, and rapid EV charging

SolarKal logo

SolarKal

Energy & Power

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

Catalyxx logo

Catalyxx

Manufacturing & Processing

Catalytic tech to turn bio-ethanol into high-value, carbon-negative chemicals

ONEPREDICT logo

ONEPREDICT

Manufacturing & Processing

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

Sweetch Energy logo

Sweetch Energy

Energy & Power

Membrane-based technology that taps into osmotic power

Adept Materials logo

Adept Materials

Infrastructure & Construction

Material innovations that improve moisture regulation, comfort, and energy efficiency

Conduit Tech logo

Conduit Tech

Infrastructure & Construction

Supporting HVAC contractors through design, sales, and installation

Fresh Inset logo

Fresh Inset

Food, Water, & Land

Improving fresh produce’s shelf life, appearance, and quality

XMtrace logo

XMtrace

Manufacturing & Processing

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

Steven Winter Associates, Inc. logo

Steven Winter Associates, Inc.

Infrastructure & Construction

Research, consulting, and advisory services to improve commercial, residential, and multifamily built environments

Singularity Energy logo

Singularity Energy

Energy & Power

Data and software solutions for grid decarbonization

Dsider logo

Dsider

Energy & Power

SaaS platform to accelerate the expansion of energy-transition projects

Fluor Enterprises, Inc. logo

Fluor Enterprises, Inc.

Energy & Power

Leading global engineering, procurement and construction (EPC) company

Studio 3e8 logo

Studio 3e8

Manufacturing & Processing

Lightspeed metal 3D printing, making professional-grade fabrication affordable, compact, and easy to use

Harmony Desalting logo

Harmony Desalting

Food, Water, & Land

Batch-process reverse osmosis for low-cost water desalination

Turnover Labs logo

Turnover Labs

Manufacturing & Processing

Modular electrolyzers converting dirty onsite CO₂ into basic chemicals

Wootz logo

Wootz

Manufacturing & Processing

Carbon nanotube supermaterials to replace or augment traditional metallic conductors

Kanin Energy logo

Kanin Energy

Energy & Power

Monetizing industrial waste heat with reduced deployment risk via third-party financing

Saint-Gobain (Member Account) logo

Saint-Gobain (Member Account)

Infrastructure & Construction

Worldwide leader in light and sustainable construction

Ensovi logo

Ensovi

Manufacturing & Processing

Cofactor recycling platform for sustainable drug manufacturing

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

HKG Energy logo

HKG Energy

Energy & Power

Silicon materials that increase battery energy density

Simlionics logo

Simlionics

Energy & Power

Physics-aware, advanced AI battery modeling and intelligence for EV and energy-storage systems

ONEPREDICT logo

ONEPREDICT

Manufacturing & Processing

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

Sweetch Energy logo

Sweetch Energy

Energy & Power

Membrane-based technology that taps into osmotic power

Adept Materials logo

Adept Materials

Infrastructure & Construction

Material innovations that improve moisture regulation, comfort, and energy efficiency

Conduit Tech logo

Conduit Tech

Infrastructure & Construction

Supporting HVAC contractors through design, sales, and installation

Fresh Inset logo

Fresh Inset

Food, Water, & Land

Improving fresh produce’s shelf life, appearance, and quality

XMtrace logo

XMtrace

Manufacturing & Processing

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

Steven Winter Associates, Inc. logo

Steven Winter Associates, Inc.

Infrastructure & Construction

Research, consulting, and advisory services to improve commercial, residential, and multifamily built environments

Singularity Energy logo

Singularity Energy

Energy & Power

Data and software solutions for grid decarbonization

Dsider logo

Dsider

Energy & Power

SaaS platform to accelerate the expansion of energy-transition projects

Fluor Enterprises, Inc. logo

Fluor Enterprises, Inc.

Energy & Power

Leading global engineering, procurement and construction (EPC) company

Studio 3e8 logo

Studio 3e8

Manufacturing & Processing

Lightspeed metal 3D printing, making professional-grade fabrication affordable, compact, and easy to use

Harmony Desalting logo

Harmony Desalting

Food, Water, & Land

Batch-process reverse osmosis for low-cost water desalination

Turnover Labs logo

Turnover Labs

Manufacturing & Processing

Modular electrolyzers converting dirty onsite CO₂ into basic chemicals

Wootz logo

Wootz

Manufacturing & Processing

Carbon nanotube supermaterials to replace or augment traditional metallic conductors

Kanin Energy logo

Kanin Energy

Energy & Power

Monetizing industrial waste heat with reduced deployment risk via third-party financing

Saint-Gobain (Member Account) logo

Saint-Gobain (Member Account)

Infrastructure & Construction

Worldwide leader in light and sustainable construction

Ensovi logo

Ensovi

Manufacturing & Processing

Cofactor recycling platform for sustainable drug manufacturing

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

HKG Energy logo

HKG Energy

Energy & Power

Silicon materials that increase battery energy density

Simlionics logo

Simlionics

Energy & Power

Physics-aware, advanced AI battery modeling and intelligence for EV and energy-storage systems

[ 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

12,915 new jobs created by our members, and counting

Boston

7,492

Houston

5,423

[ 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
  • Microsoft
  • 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
Programs
Two Greentown program participants in the lab

Learn About our Programs

In addition to our Boston and Houston incubators, Greentown runs programs designed to address critical challenges in the climatetech ecosystem.

Explore Programs