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
EarthEn logo

EarthEn

Energy & Power

Enabling electrification through CO₂-based thermodynamic cycle

FLUIDXLAB Americas Inc. logo

FLUIDXLAB Americas Inc.

Manufacturing & Processing

AI-powered microfluidic tools that help control and improve fluid processes across many industries

Conduit Tech logo

Conduit Tech

Infrastructure & Construction

Supporting HVAC contractors through design, sales, and installation

AllSpice.io logo

AllSpice.io

Infrastructure & Construction

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

Carbonext logo

Carbonext

Manufacturing & Processing

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

Allkemie logo

Allkemie

Manufacturing & Processing

Producing tailored graphene and other nanomaterials at scale

Solar Mantle logo

Solar Mantle

Infrastructure & Construction

Film that reflects sunlight for energy-free passive cooling of structures

AdaViv logo

AdaViv

Food, Water, & Land

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

Andros Innovations logo

Andros Innovations

Manufacturing & Processing

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

Daniel Consulting Group, LLC logo

Daniel Consulting Group, LLC

Energy & Power

Helping researchers improve battery and cell testing and providing due diligence for potential investors

Revvit logo

Revvit

Infrastructure & Construction

Low-cost, simple EV charging at commercial, multifamily, fleet parking, and public properties

Latitude Media logo

Latitude Media

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

Loop CO2 logo

Loop CO2

Manufacturing & Processing

Transforming CO₂ into sustainable polymers to create fully recyclable materials

Coflux Purification, Inc logo

Coflux Purification, Inc

Food, Water, & Land

A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams

Prithvi Ventures logo

Prithvi Ventures

Investing in startups reducing emissions with unique solutions for net-zero goals

Corrolytics logo

Corrolytics

Energy & Power

Corrosion detection through electrochemical innovation, integrated with advanced AI technology

Lydian logo

Lydian

Manufacturing & Processing

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

Lumiere Solutions logo

Lumiere Solutions

Infrastructure & Construction

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

ATS Energy logo

ATS Energy

Energy & Power

Converting waste heat into power without any moving parts

FlowCellutions logo

FlowCellutions

Energy & Power

Preventing power outages and improving cost savings for critical battery systems

EarthEn logo

EarthEn

Energy & Power

Enabling electrification through CO₂-based thermodynamic cycle

FLUIDXLAB Americas Inc. logo

FLUIDXLAB Americas Inc.

Manufacturing & Processing

AI-powered microfluidic tools that help control and improve fluid processes across many industries

Conduit Tech logo

Conduit Tech

Infrastructure & Construction

Supporting HVAC contractors through design, sales, and installation

AllSpice.io logo

AllSpice.io

Infrastructure & Construction

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

Carbonext logo

Carbonext

Manufacturing & Processing

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

Allkemie logo

Allkemie

Manufacturing & Processing

Producing tailored graphene and other nanomaterials at scale

Solar Mantle logo

Solar Mantle

Infrastructure & Construction

Film that reflects sunlight for energy-free passive cooling of structures

AdaViv logo

AdaViv

Food, Water, & Land

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

Andros Innovations logo

Andros Innovations

Manufacturing & Processing

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

Daniel Consulting Group, LLC logo

Daniel Consulting Group, LLC

Energy & Power

Helping researchers improve battery and cell testing and providing due diligence for potential investors

Revvit logo

Revvit

Infrastructure & Construction

Low-cost, simple EV charging at commercial, multifamily, fleet parking, and public properties

Latitude Media logo

Latitude Media

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

Loop CO2 logo

Loop CO2

Manufacturing & Processing

Transforming CO₂ into sustainable polymers to create fully recyclable materials

Coflux Purification, Inc logo

Coflux Purification, Inc

Food, Water, & Land

A modular, on-site water treatment system eliminating persistent contaminants from water and industrial waste streams

Prithvi Ventures logo

Prithvi Ventures

Investing in startups reducing emissions with unique solutions for net-zero goals

Corrolytics logo

Corrolytics

Energy & Power

Corrosion detection through electrochemical innovation, integrated with advanced AI technology

Lydian logo

Lydian

Manufacturing & Processing

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

Lumiere Solutions logo

Lumiere Solutions

Infrastructure & Construction

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

ATS Energy logo

ATS Energy

Energy & Power

Converting waste heat into power without any moving parts

FlowCellutions logo

FlowCellutions

Energy & Power

Preventing power outages and improving cost savings for critical battery systems

Thalon Materials logo

Thalon Materials

R&P Employer Solutions logo

R&P Employer Solutions

Manufacturing & Processing

HR services, workers compensation, payroll, benefits, and compliance for Houston-area employers

Glimpse Engineering logo

Glimpse Engineering

Manufacturing & Processing

Visualizing battery scans and continuously monitoring key battery-design features

BluBridge Energy Solutions logo

BluBridge Energy Solutions

Energy & Power

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

ClearTrace logo

ClearTrace

Energy & Power

Product suite for traceable, end-to-end data management of electricity and certificate transactions

Innovator Energy logo

Innovator Energy

Energy & Power

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

Matterworks logo

Matterworks

Manufacturing & Processing

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

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

Deep Anchor Solutions logo

Deep Anchor Solutions

Infrastructure & Construction

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

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

Upstream Tech logo

Upstream Tech

Energy & Power

Software that expands access to environmental data through remote monitoring and reporting for seasonal forecasts

Aeromine Technologies, Inc. logo

Aeromine Technologies, Inc.

Energy & Power

Bladeless, motionless wind turbines for the built environment

Overstory logo

Overstory

Food, Water, & Land

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

BLU NXT logo

BLU NXT

Energy & Power

Solar concentrators for high-temperature heat and energy

Janta Power logo

Janta Power

Energy & Power

The world’s first 3D solar tower technology

Biosimo logo

Biosimo

Manufacturing & Processing

Biosimo makes eco-friendly chemicals from plant waste using a clean, low-cost process

PooPoof Inc logo

PooPoof Inc

Food, Water, & Land

The world’s first pocket-sized bioreactor

NewGrid logo

NewGrid

Energy & Power

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

Adept Materials logo

Adept Materials

Infrastructure & Construction

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

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

Thalon Materials logo

Thalon Materials

R&P Employer Solutions logo

R&P Employer Solutions

Manufacturing & Processing

HR services, workers compensation, payroll, benefits, and compliance for Houston-area employers

Glimpse Engineering logo

Glimpse Engineering

Manufacturing & Processing

Visualizing battery scans and continuously monitoring key battery-design features

BluBridge Energy Solutions logo

BluBridge Energy Solutions

Energy & Power

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

ClearTrace logo

ClearTrace

Energy & Power

Product suite for traceable, end-to-end data management of electricity and certificate transactions

Innovator Energy logo

Innovator Energy

Energy & Power

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

Matterworks logo

Matterworks

Manufacturing & Processing

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

Thola logo

Thola

Energy & Power

On-demand marketplace for commercial building sustainability and safety management

Deep Anchor Solutions logo

Deep Anchor Solutions

Infrastructure & Construction

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

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

Upstream Tech logo

Upstream Tech

Energy & Power

Software that expands access to environmental data through remote monitoring and reporting for seasonal forecasts

Aeromine Technologies, Inc. logo

Aeromine Technologies, Inc.

Energy & Power

Bladeless, motionless wind turbines for the built environment

Overstory logo

Overstory

Food, Water, & Land

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

BLU NXT logo

BLU NXT

Energy & Power

Solar concentrators for high-temperature heat and energy

Janta Power logo

Janta Power

Energy & Power

The world’s first 3D solar tower technology

Biosimo logo

Biosimo

Manufacturing & Processing

Biosimo makes eco-friendly chemicals from plant waste using a clean, low-cost process

PooPoof Inc logo

PooPoof Inc

Food, Water, & Land

The world’s first pocket-sized bioreactor

NewGrid logo

NewGrid

Energy & Power

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

Adept Materials logo

Adept Materials

Infrastructure & Construction

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

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

[ 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