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
Hera Materials logo

Hera Materials

Manufacturing & Processing

Regenerative plastics made from diverse, local biomass, powered by robotics and AI

Deep Anchor Solutions logo

Deep Anchor Solutions

Infrastructure & Construction

Anchoring solutions for floating applications including energy, aquaculture, and large-scale infrastructure

Lumiere Solutions logo

Lumiere Solutions

Infrastructure & Construction

Residential low-voltage and automated single efficiency-driven ecosystems that reduce energy waste

New Mantle Technologies logo

New Mantle Technologies

Energy & Power

Subsurface characterization with physics and AI

PlaSene logo

PlaSene

Manufacturing & Processing

Converting plastic waste into liquid fuel and low-carbon hydrogen

Tato Labs logo

Tato Labs

Manufacturing & Processing

Bioplastic products and packaging solutions made from potato starch

Latitude Media logo

Latitude Media

News, podcasts, market intelligence, and events for the climatetech industry

Lydian logo

Lydian

Manufacturing & Processing

Fully electrified reactors for high-efficiency conversion of non-fossil feedstocks into pure syngas

Overstory logo

Overstory

Food, Water, & Land

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

Anning Corporation logo

Anning Corporation

Energy & Power

Targeting iron-rich rocks to produce hydrogen

Ocean Visuals logo

Ocean Visuals

Food, Water, & Land

Patented hyper-spectral LiDAR for real-time detection of oil and organics

DrinKicks logo

DrinKicks

Food, Water, & Land

Repurposing food waste and recycled materials into shoes

Wellbore Consultants logo

Wellbore Consultants

Energy & Power

Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact

Nebumi logo

Nebumi

Energy & Power

Emissions intelligence platform, monitoring pollution with satellite data and AI

Titan Advanced Energy Solutions logo

Titan Advanced Energy Solutions

Energy & Power

Advanced battery management systems for lithium-ion batteries

Clear Sky Innovations logo

Clear Sky Innovations

Manufacturing & Processing

A physics-based, AI-powered geoscience platform that uses multi-modal data sets to minimize time spent on data wrangling

Verde Technologies logo

Verde Technologies

Energy & Power

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

Revterra logo

Revterra

Energy & Power

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

Form Energy logo

Form Energy

Energy & Power

Cost-effective, multi-day energy-storage solutions

Andros Innovations logo

Andros Innovations

Manufacturing & Processing

Reducing the costs and energy demands of ammonia production through advanced reactor technology

Hera Materials logo

Hera Materials

Manufacturing & Processing

Regenerative plastics made from diverse, local biomass, powered by robotics and AI

Deep Anchor Solutions logo

Deep Anchor Solutions

Infrastructure & Construction

Anchoring solutions for floating applications including energy, aquaculture, and large-scale infrastructure

Lumiere Solutions logo

Lumiere Solutions

Infrastructure & Construction

Residential low-voltage and automated single efficiency-driven ecosystems that reduce energy waste

New Mantle Technologies logo

New Mantle Technologies

Energy & Power

Subsurface characterization with physics and AI

PlaSene logo

PlaSene

Manufacturing & Processing

Converting plastic waste into liquid fuel and low-carbon hydrogen

Tato Labs logo

Tato Labs

Manufacturing & Processing

Bioplastic products and packaging solutions made from potato starch

Latitude Media logo

Latitude Media

News, podcasts, market intelligence, and events for the climatetech industry

Lydian logo

Lydian

Manufacturing & Processing

Fully electrified reactors for high-efficiency conversion of non-fossil feedstocks into pure syngas

Overstory logo

Overstory

Food, Water, & Land

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

Anning Corporation logo

Anning Corporation

Energy & Power

Targeting iron-rich rocks to produce hydrogen

Ocean Visuals logo

Ocean Visuals

Food, Water, & Land

Patented hyper-spectral LiDAR for real-time detection of oil and organics

DrinKicks logo

DrinKicks

Food, Water, & Land

Repurposing food waste and recycled materials into shoes

Wellbore Consultants logo

Wellbore Consultants

Energy & Power

Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact

Nebumi logo

Nebumi

Energy & Power

Emissions intelligence platform, monitoring pollution with satellite data and AI

Titan Advanced Energy Solutions logo

Titan Advanced Energy Solutions

Energy & Power

Advanced battery management systems for lithium-ion batteries

Clear Sky Innovations logo

Clear Sky Innovations

Manufacturing & Processing

A physics-based, AI-powered geoscience platform that uses multi-modal data sets to minimize time spent on data wrangling

Verde Technologies logo

Verde Technologies

Energy & Power

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

Revterra logo

Revterra

Energy & Power

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

Form Energy logo

Form Energy

Energy & Power

Cost-effective, multi-day energy-storage solutions

Andros Innovations logo

Andros Innovations

Manufacturing & Processing

Reducing the costs and energy demands of ammonia production through advanced reactor technology

Clean Crop Technologies logo

Clean Crop Technologies

Food, Water, & Land

Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity

MCatalysis logo

MCatalysis

Manufacturing & Processing

Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology

Haffner Energy logo

Haffner Energy

Energy & Power

Producing renewable energy via waste-biomass thermolysis

BlueShift Carbon logo

BlueShift Carbon

Manufacturing & Processing

Electrochemical CO₂-removal solution that’s low-cost, energy-efficient, redox-based, and membrane-free

Massachusetts Materials Technologies logo

Massachusetts Materials Technologies

Energy & Power

Seamlessly measuring the mechanical properties of pipelines without interruption

Universal Matter Inc. logo

Universal Matter Inc.

Manufacturing & Processing

Producing graphene from carbon waste streams

Prophet AI logo

Prophet AI

Food, Water, & Land

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

Elementa Partners logo

Elementa Partners

Infrastructure & Construction

Uniting global talent to unlock high-conviction, institutional-grade investments across Texas growth sectors

Mithril Technologies logo

Mithril Technologies

Infrastructure & Construction

Reshapable reflectors for advanced antennas & radars for space-based earth and severe weather monitoring

Florrent logo

Florrent

Food, Water, & Land

High-energy-density supercapacitors for energy storage, made from domestic biomass waste

Dottir Labs logo

Dottir Labs

Food, Water, & Land

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

AeroShield Materials logo

AeroShield Materials

Infrastructure & Construction

Insulating, porous aerogels for energy-efficient windows

Innovator Energy logo

Innovator Energy

Energy & Power

Developing and deploying solutions in cooling, heating, and heat transfer

BluBridge Energy Solutions logo

BluBridge Energy Solutions

Energy & Power

Removing undesired elements from pre- and post-combustion gas streams

FAST Metals logo

FAST Metals

Manufacturing & Processing

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

EnergyGigs logo

EnergyGigs

Food, Water, & Land

Talent and freelance platform for the energy industry

WhaleSpotter logo

WhaleSpotter

Transportation & Logistics

Thermal imaging and AI to prevent marine mammal strikes at sea

LOCOAL logo

LOCOAL

Manufacturing & Processing

Turning waste into value, and producing clean energy, biofuels, and carbon credits

Beacon Climate Innovations logo

Beacon Climate Innovations

Energy & Power

Filling gaps between the frontlines of climate change and the emerging technologies that can best address them

GeoTeknica logo

GeoTeknica

Manufacturing & Processing

Clean Crop Technologies logo

Clean Crop Technologies

Food, Water, & Land

Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity

MCatalysis logo

MCatalysis

Manufacturing & Processing

Converting waste carbon into low-cost clean fuels with advanced microwave and catalyst technology

Haffner Energy logo

Haffner Energy

Energy & Power

Producing renewable energy via waste-biomass thermolysis

BlueShift Carbon logo

BlueShift Carbon

Manufacturing & Processing

Electrochemical CO₂-removal solution that’s low-cost, energy-efficient, redox-based, and membrane-free

Massachusetts Materials Technologies logo

Massachusetts Materials Technologies

Energy & Power

Seamlessly measuring the mechanical properties of pipelines without interruption

Universal Matter Inc. logo

Universal Matter Inc.

Manufacturing & Processing

Producing graphene from carbon waste streams

Prophet AI logo

Prophet AI

Food, Water, & Land

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

Elementa Partners logo

Elementa Partners

Infrastructure & Construction

Uniting global talent to unlock high-conviction, institutional-grade investments across Texas growth sectors

Mithril Technologies logo

Mithril Technologies

Infrastructure & Construction

Reshapable reflectors for advanced antennas & radars for space-based earth and severe weather monitoring

Florrent logo

Florrent

Food, Water, & Land

High-energy-density supercapacitors for energy storage, made from domestic biomass waste

Dottir Labs logo

Dottir Labs

Food, Water, & Land

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

AeroShield Materials logo

AeroShield Materials

Infrastructure & Construction

Insulating, porous aerogels for energy-efficient windows

Innovator Energy logo

Innovator Energy

Energy & Power

Developing and deploying solutions in cooling, heating, and heat transfer

BluBridge Energy Solutions logo

BluBridge Energy Solutions

Energy & Power

Removing undesired elements from pre- and post-combustion gas streams

FAST Metals logo

FAST Metals

Manufacturing & Processing

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

EnergyGigs logo

EnergyGigs

Food, Water, & Land

Talent and freelance platform for the energy industry

WhaleSpotter logo

WhaleSpotter

Transportation & Logistics

Thermal imaging and AI to prevent marine mammal strikes at sea

LOCOAL logo

LOCOAL

Manufacturing & Processing

Turning waste into value, and producing clean energy, biofuels, and carbon credits

Beacon Climate Innovations logo

Beacon Climate Innovations

Energy & Power

Filling gaps between the frontlines of climate change and the emerging technologies that can best address them

GeoTeknica logo

GeoTeknica

Manufacturing & Processing

[ 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