Transforming industry

We support climatetech startups working on innovations to transform our key industrial and energy systems for a sustainable future.

Membership Benefits
Greentown member explaining a prototype to a partner
[ 01 ]Who We Are

We're big believers in the power of entrepreneurship.

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

But 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.

[ 03 ]Our Startups

Our Member Companies

View All Startups
Form Energy logo

Form Energy

Energy & Power

Cost-effective, multi-day energy-storage solutions

Next Rung Technology logo

Next Rung Technology

Manufacturing & Processing

Supporting clean technologies in their commercialization journeys with expert engineering consulting

Datavedik logo

Datavedik

Energy & Power

Addressing complex optimization challenges in the energy industry

New Mantle Technologies logo

New Mantle Technologies

Energy & Power

Subsurface characterization with physics and AI

Dottir Labs logo

Dottir Labs

Food, Water, & Land

Sensor technology that provides real-time, detailed chemical analysis of water

Glimpse Engineering logo

Glimpse Engineering

Manufacturing & Processing

Visualizing battery scans and continuously monitoring key battery-design features

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

Nomadic Drones logo

Nomadic Drones

Energy & Power

The first autonomos drone allowing continuous and relocatable high-voltage power line monitoring

Thiozen logo

Thiozen

Manufacturing & Processing

Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

SBD Technologies logo

SBD Technologies

Transportation & Logistics

Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management

Harmony Desalting logo

Harmony Desalting

Food, Water, & Land

Batch-process reverse osmosis for low-cost water desalination

Fresh Inset logo

Fresh Inset

Food, Water, & Land

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

DrinKicks logo

DrinKicks

Food, Water, & Land

Repurposing food waste and recycled materials into shoes

Flux Marine logo

Flux Marine

Transportation & Logistics

Outboard motors and complete boat packages characterized by low maintenance, long range, and outstanding performance

Terralytiq logo

Terralytiq

Manufacturing & Processing

Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon

Carbon To Stone logo

Carbon To Stone

Energy & Power

Carbon-mineralization technology with high-value minerals and metals recovery

Matterworks logo

Matterworks

Manufacturing & Processing

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

Orien Energy logo

Orien Energy

Infrastructure & Construction

Sorption heat pump to recover waste heat from dryer exhaust

SPHINX INC logo

SPHINX INC

Energy & Power

High-speed 24/7 energy trading with blockchain clarity and instant settlement

Form Energy logo

Form Energy

Energy & Power

Cost-effective, multi-day energy-storage solutions

Next Rung Technology logo

Next Rung Technology

Manufacturing & Processing

Supporting clean technologies in their commercialization journeys with expert engineering consulting

Datavedik logo

Datavedik

Energy & Power

Addressing complex optimization challenges in the energy industry

New Mantle Technologies logo

New Mantle Technologies

Energy & Power

Subsurface characterization with physics and AI

Dottir Labs logo

Dottir Labs

Food, Water, & Land

Sensor technology that provides real-time, detailed chemical analysis of water

Glimpse Engineering logo

Glimpse Engineering

Manufacturing & Processing

Visualizing battery scans and continuously monitoring key battery-design features

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

Nomadic Drones logo

Nomadic Drones

Energy & Power

The first autonomos drone allowing continuous and relocatable high-voltage power line monitoring

Thiozen logo

Thiozen

Manufacturing & Processing

Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

SBD Technologies logo

SBD Technologies

Transportation & Logistics

Fully automated, scalable EV home charging and energy optimization solutions for sustainable fleet management

Harmony Desalting logo

Harmony Desalting

Food, Water, & Land

Batch-process reverse osmosis for low-cost water desalination

Fresh Inset logo

Fresh Inset

Food, Water, & Land

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

DrinKicks logo

DrinKicks

Food, Water, & Land

Repurposing food waste and recycled materials into shoes

Flux Marine logo

Flux Marine

Transportation & Logistics

Outboard motors and complete boat packages characterized by low maintenance, long range, and outstanding performance

Terralytiq logo

Terralytiq

Manufacturing & Processing

Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon

Carbon To Stone logo

Carbon To Stone

Energy & Power

Carbon-mineralization technology with high-value minerals and metals recovery

Matterworks logo

Matterworks

Manufacturing & Processing

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

Orien Energy logo

Orien Energy

Infrastructure & Construction

Sorption heat pump to recover waste heat from dryer exhaust

SPHINX INC logo

SPHINX INC

Energy & Power

High-speed 24/7 energy trading with blockchain clarity and instant settlement

NOC Energy logo

NOC Energy

Energy & Power

Decarbonizing industrial heat with power-to-heat and power-to-power solutions

QEA Tech logo

QEA Tech

Energy & Power

Precise, data-driven building-envelope audits using patented AI software, drones, and thermography

PooPoof Inc logo

PooPoof Inc

Food, Water, & Land

The world’s first pocket-sized bioreactor

Amplified Industries logo

Amplified Industries

Infrastructure & Construction

AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues

Monaire logo

Monaire

Infrastructure & Construction

Reducing HVAC energy use and repair costs for small commercial buildings

NewGrid logo

NewGrid

Energy & Power

Software and services to enable system operators, utilities, and power market participants to reduce grid congestion

Aluminum Technologies logo

Aluminum Technologies

Manufacturing & Processing

Low-GHG primary aluminum production with Carbo-Chloride Reduction

Loop CO2 logo

Loop CO2

Manufacturing & Processing

Transforming CO₂ into sustainable polymers to create fully recyclable materials

Boxes logo

Boxes

Manufacturing & Processing

Smart, affordable, and sustainable retail combining the physical and digital worlds

Rushnu logo

Rushnu

Manufacturing & Processing

Turns waste into carbon-neutral chemistry

LiftOFF Technology logo

LiftOFF Technology

Energy & Power

Batteries with breakthrough energy density and safety

Prophet AI logo

Prophet AI

Food, Water, & Land

AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions

Helium Capital logo

Helium Capital

Infrastructure & Construction

Supporting growing small businesses

Kausalyze logo

Kausalyze

Manufacturing & Processing

True root-cause analysis for chemicals, energy, and pharmaceutical companies

WhaleSpotter logo

WhaleSpotter

Transportation & Logistics

Thermal imaging and AI to prevent marine mammal strikes at sea

Imperium Technologies logo

Imperium Technologies

Energy & Power

Reducing industrial heating emissions with electrochemical processes

AllSpice.io logo

AllSpice.io

Infrastructure & Construction

A collaboration hub for hardware teams with revision control, design reviews, and releases

ICODOS logo

ICODOS

Manufacturing & Processing

Scalable clean methanol to decarbonize transport and chemicals

COI Energy logo

COI Energy

Energy & Power

AI and machine learning to predict and prevent energy waste

Capro-X logo

Capro-X

Food, Water, & Land

Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals

NOC Energy logo

NOC Energy

Energy & Power

Decarbonizing industrial heat with power-to-heat and power-to-power solutions

QEA Tech logo

QEA Tech

Energy & Power

Precise, data-driven building-envelope audits using patented AI software, drones, and thermography

PooPoof Inc logo

PooPoof Inc

Food, Water, & Land

The world’s first pocket-sized bioreactor

Amplified Industries logo

Amplified Industries

Infrastructure & Construction

AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues

Monaire logo

Monaire

Infrastructure & Construction

Reducing HVAC energy use and repair costs for small commercial buildings

NewGrid logo

NewGrid

Energy & Power

Software and services to enable system operators, utilities, and power market participants to reduce grid congestion

Aluminum Technologies logo

Aluminum Technologies

Manufacturing & Processing

Low-GHG primary aluminum production with Carbo-Chloride Reduction

Loop CO2 logo

Loop CO2

Manufacturing & Processing

Transforming CO₂ into sustainable polymers to create fully recyclable materials

Boxes logo

Boxes

Manufacturing & Processing

Smart, affordable, and sustainable retail combining the physical and digital worlds

Rushnu logo

Rushnu

Manufacturing & Processing

Turns waste into carbon-neutral chemistry

LiftOFF Technology logo

LiftOFF Technology

Energy & Power

Batteries with breakthrough energy density and safety

Prophet AI logo

Prophet AI

Food, Water, & Land

AI-based poultry-health-monitoring system to reduce chicken mortality, save revenue, and avoid carbon emissions

Helium Capital logo

Helium Capital

Infrastructure & Construction

Supporting growing small businesses

Kausalyze logo

Kausalyze

Manufacturing & Processing

True root-cause analysis for chemicals, energy, and pharmaceutical companies

WhaleSpotter logo

WhaleSpotter

Transportation & Logistics

Thermal imaging and AI to prevent marine mammal strikes at sea

Imperium Technologies logo

Imperium Technologies

Energy & Power

Reducing industrial heating emissions with electrochemical processes

AllSpice.io logo

AllSpice.io

Infrastructure & Construction

A collaboration hub for hardware teams with revision control, design reviews, and releases

ICODOS logo

ICODOS

Manufacturing & Processing

Scalable clean methanol to decarbonize transport and chemicals

COI Energy logo

COI Energy

Energy & Power

AI and machine learning to predict and prevent energy waste

Capro-X logo

Capro-X

Food, Water, & Land

Sustainable biochemicals made from food waste at food production plants, creating alternatives to palm-oil chemicals

[ 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