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
SRECTrade logo

SRECTrade

Energy & Power

Management and transaction platform for environmental commodities to reduce costs and increase transparency

ClearTrace logo

ClearTrace

Energy & Power

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

NeuraliX logo

NeuraliX

Energy & Power

AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors

Allkemie logo

Allkemie

Manufacturing & Processing

Producing tailored graphene and other nanomaterials at scale

Wellbore Consultants logo

Wellbore Consultants

Energy & Power

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

Realizse logo

Realizse

Energy & Power

Tokenization and product verification for circularity, energy, and the real estate markets

Trellis Air logo

Trellis Air

Infrastructure & Construction

Membrane-based dehumidifiers that are vastly more energy-efficient than desiccant wheels and standalone dehumidifiers

Resollant logo

Resollant

Manufacturing & Processing

Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale

QuantAQ logo

QuantAQ

Infrastructure & Construction

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

Turnover Labs logo

Turnover Labs

Manufacturing & Processing

Modular electrolyzers converting dirty onsite CO₂ into basic chemicals

Glimpse Engineering logo

Glimpse Engineering

Manufacturing & Processing

Visualizing battery scans and continuously monitoring key battery-design features

Vecarius logo

Vecarius

Infrastructure & Construction

Heat-to-electricity technology to boost energy efficiency in mass markets

FlowCellutions logo

FlowCellutions

Energy & Power

Preventing power outages and improving cost savings for critical battery systems

Climative logo

Climative

Energy & Power

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

Adaion logo

Adaion

Energy & Power

AI-driven grid optimization & integrated system planning platform

Kanin Energy logo

Kanin Energy

Energy & Power

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

De-Ice logo

De-Ice

Transportation & Logistics

Electric de-icing technology designed to help the aerospace industry eliminate all chemicals

Imperium Technologies logo

Imperium Technologies

Energy & Power

Reducing industrial heating emissions with electrochemical processes

ThermaFuels logo

ThermaFuels

Transportation & Logistics

Deploying scalable, financeable low-carbon methanol and sustainable fuel infrastructure

Monaire logo

Monaire

Infrastructure & Construction

Reducing HVAC energy use and repair costs for small commercial buildings

SRECTrade logo

SRECTrade

Energy & Power

Management and transaction platform for environmental commodities to reduce costs and increase transparency

ClearTrace logo

ClearTrace

Energy & Power

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

NeuraliX logo

NeuraliX

Energy & Power

AI solutions to optimize operations and reduce emissions for the energy and manufacturing sectors

Allkemie logo

Allkemie

Manufacturing & Processing

Producing tailored graphene and other nanomaterials at scale

Wellbore Consultants logo

Wellbore Consultants

Energy & Power

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

Realizse logo

Realizse

Energy & Power

Tokenization and product verification for circularity, energy, and the real estate markets

Trellis Air logo

Trellis Air

Infrastructure & Construction

Membrane-based dehumidifiers that are vastly more energy-efficient than desiccant wheels and standalone dehumidifiers

Resollant logo

Resollant

Manufacturing & Processing

Enables industrial-scale hydrogen & syngas production while capturing carbon as a monetizable solid at scale

QuantAQ logo

QuantAQ

Infrastructure & Construction

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

Turnover Labs logo

Turnover Labs

Manufacturing & Processing

Modular electrolyzers converting dirty onsite CO₂ into basic chemicals

Glimpse Engineering logo

Glimpse Engineering

Manufacturing & Processing

Visualizing battery scans and continuously monitoring key battery-design features

Vecarius logo

Vecarius

Infrastructure & Construction

Heat-to-electricity technology to boost energy efficiency in mass markets

FlowCellutions logo

FlowCellutions

Energy & Power

Preventing power outages and improving cost savings for critical battery systems

Climative logo

Climative

Energy & Power

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

Adaion logo

Adaion

Energy & Power

AI-driven grid optimization & integrated system planning platform

Kanin Energy logo

Kanin Energy

Energy & Power

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

De-Ice logo

De-Ice

Transportation & Logistics

Electric de-icing technology designed to help the aerospace industry eliminate all chemicals

Imperium Technologies logo

Imperium Technologies

Energy & Power

Reducing industrial heating emissions with electrochemical processes

ThermaFuels logo

ThermaFuels

Transportation & Logistics

Deploying scalable, financeable low-carbon methanol and sustainable fuel infrastructure

Monaire logo

Monaire

Infrastructure & Construction

Reducing HVAC energy use and repair costs for small commercial buildings

Solas Capture logo

Solas Capture

Solas Capture is developing a sunlight-powered process for sustainable lithium carbonate production using novel photobase chemistry. Our technology converts lithium brines and CO₂ into battery-grade materials with lower energy use, reduced waste, and a significantly smaller environmental footprint than conventional methods.

Carbion logo

Carbion

Manufacturing & Processing

Affordable and clean biomass transformation to graphite for batteries

Emrod logo

Emrod

Energy & Power

Sustainable power with long-range wireless power transfer technology

Mission Zero Technologies logo

Mission Zero Technologies

Manufacturing & Processing

Efficient electrochemistry to capture CO₂

Aelun logo

Aelun

Mithril Technologies logo

Mithril Technologies

Infrastructure & Construction

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

Matterworks logo

Matterworks

Manufacturing & Processing

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

Atlas Robotics logo

Atlas Robotics

Transportation & Logistics

Verde Technologies logo

Verde Technologies

Energy & Power

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

HEXAspec logo

HEXAspec

Energy & Power

Thermal management solutions for semiconductor chips, enabling more powerful hardware

Newfound Materials logo

Newfound Materials

Manufacturing & Processing

Predictive engine for materials R&D for new pathways to critical minerals

Haystack Ag logo

Haystack Ag

Food, Water, & Land

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

PlaSene logo

PlaSene

Manufacturing & Processing

Converting plastic waste into liquid fuel and low-carbon hydrogen

COI Energy logo

COI Energy

Energy & Power

AI and machine learning to predict and prevent energy waste

Infinite Foundry logo

Infinite Foundry

Manufacturing & Processing

Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability

GeoTeknica logo

GeoTeknica

Manufacturing & Processing

Agrilab Technologies Inc. logo

Agrilab Technologies Inc.

Food, Water, & Land

Modular compost-aeration and heat-recovery systems

KP Labs logo

KP Labs

Manufacturing & Processing

Modular, biomembrane-based systems for on-site recovery of critical metals from e-waste and industrial residues

Rushnu logo

Rushnu

Manufacturing & Processing

Turns waste into carbon-neutral chemistry

GigaDAC logo

GigaDAC

Energy & Power

Direct air capture optimized for gigaton scale

Solas Capture logo

Solas Capture

Solas Capture is developing a sunlight-powered process for sustainable lithium carbonate production using novel photobase chemistry. Our technology converts lithium brines and CO₂ into battery-grade materials with lower energy use, reduced waste, and a significantly smaller environmental footprint than conventional methods.

Carbion logo

Carbion

Manufacturing & Processing

Affordable and clean biomass transformation to graphite for batteries

Emrod logo

Emrod

Energy & Power

Sustainable power with long-range wireless power transfer technology

Mission Zero Technologies logo

Mission Zero Technologies

Manufacturing & Processing

Efficient electrochemistry to capture CO₂

Aelun logo

Aelun

Mithril Technologies logo

Mithril Technologies

Infrastructure & Construction

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

Matterworks logo

Matterworks

Manufacturing & Processing

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

Atlas Robotics logo

Atlas Robotics

Transportation & Logistics

Verde Technologies logo

Verde Technologies

Energy & Power

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

HEXAspec logo

HEXAspec

Energy & Power

Thermal management solutions for semiconductor chips, enabling more powerful hardware

Newfound Materials logo

Newfound Materials

Manufacturing & Processing

Predictive engine for materials R&D for new pathways to critical minerals

Haystack Ag logo

Haystack Ag

Food, Water, & Land

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

PlaSene logo

PlaSene

Manufacturing & Processing

Converting plastic waste into liquid fuel and low-carbon hydrogen

COI Energy logo

COI Energy

Energy & Power

AI and machine learning to predict and prevent energy waste

Infinite Foundry logo

Infinite Foundry

Manufacturing & Processing

Real-time 3D operational models to improve efficiency, lower costs, and enhance sustainability

GeoTeknica logo

GeoTeknica

Manufacturing & Processing

Agrilab Technologies Inc. logo

Agrilab Technologies Inc.

Food, Water, & Land

Modular compost-aeration and heat-recovery systems

KP Labs logo

KP Labs

Manufacturing & Processing

Modular, biomembrane-based systems for on-site recovery of critical metals from e-waste and industrial residues

Rushnu logo

Rushnu

Manufacturing & Processing

Turns waste into carbon-neutral chemistry

GigaDAC logo

GigaDAC

Energy & Power

Direct air capture optimized for gigaton scale

[ 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