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
Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

BiaTech Corporation logo

BiaTech Corporation

Energy & Power

Energy and natural resource infrastructure immersion with AI-enabled edge and cloud technology

Dottir Labs logo

Dottir Labs

Food, Water, & Land

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

Teknobuilt logo

Teknobuilt

Infrastructure & Construction

Cloud-based construction project management software

SPHINX INC logo

SPHINX INC

Energy & Power

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

Elemental Advanced Materials logo

Elemental Advanced Materials

Manufacturing & Processing

Graphene and hydrogen from mixed and contaminated waste plastics and other organic materials

Saint-Gobain (Member Account) logo

Saint-Gobain (Member Account)

Infrastructure & Construction

Worldwide leader in light and sustainable construction

Cocoa Potash logo

Cocoa Potash

Food, Water, & Land

Endeavor Composites logo

Endeavor Composites

Manufacturing & Processing

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

Catalyxx logo

Catalyxx

Manufacturing & Processing

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

XMtrace logo

XMtrace

Manufacturing & Processing

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

AdaViv logo

AdaViv

Food, Water, & Land

Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor

Carbonext logo

Carbonext

Manufacturing & Processing

3D-graphene technology that develops integrated solutions with carbon-coated silicon anodes

Respire Energy logo

Respire Energy

Energy & Power

Safe, low-cost, and long-duration metal-air battery designed for microgrids

BLU NXT logo

BLU NXT

Energy & Power

Solar concentrators for high-temperature heat and energy

WISE ENERGIE logo

WISE ENERGIE

Energy & Power

Blending vertical-axis wind, solar PV, and battery storage into a single, silent system generating 24/7 clean power

NOC Energy logo

NOC Energy

Energy & Power

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

AgZen logo

AgZen

Food, Water, & Land

AI that monitors leaf coverage during spraying to reduce pesticide usage

Provocative logo

Provocative

Manufacturing & Processing

Replacing data centers’ cooling systems with carbon capture

FAST Metals logo

FAST Metals

Manufacturing & Processing

Hydrometallurgical-recovery process for extracting rare-earth elements from industrial tailings

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

BiaTech Corporation logo

BiaTech Corporation

Energy & Power

Energy and natural resource infrastructure immersion with AI-enabled edge and cloud technology

Dottir Labs logo

Dottir Labs

Food, Water, & Land

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

Teknobuilt logo

Teknobuilt

Infrastructure & Construction

Cloud-based construction project management software

SPHINX INC logo

SPHINX INC

Energy & Power

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

Elemental Advanced Materials logo

Elemental Advanced Materials

Manufacturing & Processing

Graphene and hydrogen from mixed and contaminated waste plastics and other organic materials

Saint-Gobain (Member Account) logo

Saint-Gobain (Member Account)

Infrastructure & Construction

Worldwide leader in light and sustainable construction

Cocoa Potash logo

Cocoa Potash

Food, Water, & Land

Endeavor Composites logo

Endeavor Composites

Manufacturing & Processing

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

Catalyxx logo

Catalyxx

Manufacturing & Processing

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

XMtrace logo

XMtrace

Manufacturing & Processing

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

AdaViv logo

AdaViv

Food, Water, & Land

Hardware-enabled crop-care software for greenhouse and indoor growers to maximize quality yields without added labor

Carbonext logo

Carbonext

Manufacturing & Processing

3D-graphene technology that develops integrated solutions with carbon-coated silicon anodes

Respire Energy logo

Respire Energy

Energy & Power

Safe, low-cost, and long-duration metal-air battery designed for microgrids

BLU NXT logo

BLU NXT

Energy & Power

Solar concentrators for high-temperature heat and energy

WISE ENERGIE logo

WISE ENERGIE

Energy & Power

Blending vertical-axis wind, solar PV, and battery storage into a single, silent system generating 24/7 clean power

NOC Energy logo

NOC Energy

Energy & Power

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

AgZen logo

AgZen

Food, Water, & Land

AI that monitors leaf coverage during spraying to reduce pesticide usage

Provocative logo

Provocative

Manufacturing & Processing

Replacing data centers’ cooling systems with carbon capture

FAST Metals logo

FAST Metals

Manufacturing & Processing

Hydrometallurgical-recovery process for extracting rare-earth elements from industrial tailings

Haystack Ag logo

Haystack Ag

Food, Water, & Land

High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices

Browning the Green Space logo

Browning the Green Space

Food, Water, & Land

Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities

Next Rung Technology logo

Next Rung Technology

Manufacturing & Processing

Supporting clean technologies in their commercialization journeys with expert engineering consulting

Ensovi logo

Ensovi

Manufacturing & Processing

Cofactor recycling platform for sustainable drug manufacturing

NewGenium logo

NewGenium

Energy & Power

Advanced brine-to-battery grade LFP technology

Prophet AI logo

Prophet AI

Food, Water, & Land

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

Universal Matter Inc. logo

Universal Matter Inc.

Manufacturing & Processing

Producing graphene from carbon waste streams

Dugu Systems logo

Dugu Systems

Energy & Power

Zero-carbon power with an emissions-free gas turbine

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

Overstory logo

Overstory

Food, Water, & Land

Minimizing vegetation contact with power lines using satellite imagery, climate data, and machine learning

Ohm Analytics logo

Ohm Analytics

Energy & Power

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

Climative logo

Climative

Energy & Power

AI-assisted home-energy assessments deployed in an interactive, web-based platform

Timbergrove logo

Timbergrove

Energy & Power

Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency

AllSpice.io logo

AllSpice.io

Infrastructure & Construction

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

Sparkplug Power logo

Sparkplug Power

Energy & Power

Energy-storage-as-a-service for municipal utilities and commercial businesses

Verde Technologies logo

Verde Technologies

Energy & Power

Lightweight, flexible perovskite solar panels for mass industrial and commercial adoption

RIVSAL HOLDINGS INC. logo

RIVSAL HOLDINGS INC.

Energy & Power

Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility

PV Nano Cell logo

PV Nano Cell

Energy & Power

Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells

FlowCellutions logo

FlowCellutions

Energy & Power

Preventing power outages and improving cost savings for critical battery systems

Sweetch Energy logo

Sweetch Energy

Energy & Power

Membrane-based technology that taps into osmotic power

Haystack Ag logo

Haystack Ag

Food, Water, & Land

High-accuracy carbon-measurement systems for soil to drive affordable regenerative farming practices

Browning the Green Space logo

Browning the Green Space

Food, Water, & Land

Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities

Next Rung Technology logo

Next Rung Technology

Manufacturing & Processing

Supporting clean technologies in their commercialization journeys with expert engineering consulting

Ensovi logo

Ensovi

Manufacturing & Processing

Cofactor recycling platform for sustainable drug manufacturing

NewGenium logo

NewGenium

Energy & Power

Advanced brine-to-battery grade LFP technology

Prophet AI logo

Prophet AI

Food, Water, & Land

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

Universal Matter Inc. logo

Universal Matter Inc.

Manufacturing & Processing

Producing graphene from carbon waste streams

Dugu Systems logo

Dugu Systems

Energy & Power

Zero-carbon power with an emissions-free gas turbine

SpringCycle Energy logo

SpringCycle Energy

Energy & Power

Rechargeable iron fuel to transform solar into baseload power

Overstory logo

Overstory

Food, Water, & Land

Minimizing vegetation contact with power lines using satellite imagery, climate data, and machine learning

Ohm Analytics logo

Ohm Analytics

Energy & Power

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

Climative logo

Climative

Energy & Power

AI-assisted home-energy assessments deployed in an interactive, web-based platform

Timbergrove logo

Timbergrove

Energy & Power

Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency

AllSpice.io logo

AllSpice.io

Infrastructure & Construction

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

Sparkplug Power logo

Sparkplug Power

Energy & Power

Energy-storage-as-a-service for municipal utilities and commercial businesses

Verde Technologies logo

Verde Technologies

Energy & Power

Lightweight, flexible perovskite solar panels for mass industrial and commercial adoption

RIVSAL HOLDINGS INC. logo

RIVSAL HOLDINGS INC.

Energy & Power

Power plants that run on water and deliver electricity to avoid grid vulnerability and energy price volatility

PV Nano Cell logo

PV Nano Cell

Energy & Power

Advanced nano conductive pastes enabling finer, faster, and more efficient metallization for next-gen solar cells

FlowCellutions logo

FlowCellutions

Energy & Power

Preventing power outages and improving cost savings for critical battery systems

Sweetch Energy logo

Sweetch Energy

Energy & Power

Membrane-based technology that taps into osmotic power

[ 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