Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
MissionPoint Capital Partners logo

MissionPoint Capital Partners

Planckton Data logo

Planckton Data

Manufacturing & Processing

Planckton Data — is making a platform that is built to manage the entire carbon data lifecycle by automating data collection and conversion and producing insights quickly without the need to make extensive changes to existing systems

SICDrone logo

SICDrone

Transportation & Logistics

Clean Power logo

Clean Power

Energy & Power

Freshr Technologies logo

Freshr Technologies

Food, Water, & Land

BlueTec Energy logo

BlueTec Energy

Energy & Power

Sense Labs, Inc. logo

Sense Labs, Inc.

Infrastructure & Construction

The Sense Home Energy monitor tells you what devices in your home are on, and how much energy each is consuming.

AIRCO logo

AIRCO

Energy & Power

Cyvl logo

Cyvl

Infrastructure & Construction

Cyvl.ai (formerly Roadgnar) — helps cities and businesses better manage their physical infrastructure assets like roads, bridges, sidewalks, buildings, and more with distributed data collection devices and machine learning.

Topl logo

Topl

Infrastructure & Construction

Topl is an impact technology company building a blockchain that empowers businesses to prove and monetize ethical and sustainable practices.

PURGIT logo

PURGIT

Transportation & Logistics

Build a verifiable vapor control system that makes no pollution and recovers the VOC for recycling. Reduce air pollution and claim carbon credits.

CF Tech logo

CF Tech

Energy & Power

CF Technologies — are experts in Critical Fluid processes turning rancid restaurant and sewer trap grease into advanced renewable fuel.

Fysikes Biosolutions logo

Fysikes Biosolutions

Energy & Power

Fysikes Biosolutions — develops renewable green fuels (methanol, ammonia, and naphtas) via the production of hydrogen and concentrated CO2 from direct air capture and industrial CO2 capture technologies.

Accion Systems logo

Accion Systems

Transportation & Logistics

Accion Systems — develops in-space propulsion technologies that optimize scalability, performance, and efficiency to accelerate the exploration of space. Accion’s flagship product, TILE, uses proprietary electrospray thrusters, bringing electric propulsion to satellites of all sizes and redefining in-space capabilities for the 21st century.

Raise Green logo

Raise Green

Energy & Power

Raise Green — helps make it easy to start your own solar energy project or climate action company. Anyone can start a project on Raise Green and bring clean energy to their business or community.

JURA Bio logo

JURA Bio

Food, Water, & Land

Sol Clarity logo

Sol Clarity

Energy & Power

Sol Clarity — Solar panels need cleaning but there’s not enough water for it – with EDS just flip a switch to watch dust disappear. Dust settles, they don’t!

Via Separations logo

Via Separations

Manufacturing & Processing

Via Separations — is developing a new membrane material to make manufacturing processes more energy efficient—transforming the production of things like fertilizer and nylon, and with the potential to save a gigaton of carbon each year.

ALP Technologies logo

ALP Technologies

Energy & Power

Biosfera logo

Biosfera

Manufacturing & Processing

MissionPoint Capital Partners logo

MissionPoint Capital Partners

Planckton Data logo

Planckton Data

Manufacturing & Processing

Planckton Data — is making a platform that is built to manage the entire carbon data lifecycle by automating data collection and conversion and producing insights quickly without the need to make extensive changes to existing systems

SICDrone logo

SICDrone

Transportation & Logistics

Clean Power logo

Clean Power

Energy & Power

Freshr Technologies logo

Freshr Technologies

Food, Water, & Land

BlueTec Energy logo

BlueTec Energy

Energy & Power

Sense Labs, Inc. logo

Sense Labs, Inc.

Infrastructure & Construction

The Sense Home Energy monitor tells you what devices in your home are on, and how much energy each is consuming.

AIRCO logo

AIRCO

Energy & Power

Cyvl logo

Cyvl

Infrastructure & Construction

Cyvl.ai (formerly Roadgnar) — helps cities and businesses better manage their physical infrastructure assets like roads, bridges, sidewalks, buildings, and more with distributed data collection devices and machine learning.

Topl logo

Topl

Infrastructure & Construction

Topl is an impact technology company building a blockchain that empowers businesses to prove and monetize ethical and sustainable practices.

PURGIT logo

PURGIT

Transportation & Logistics

Build a verifiable vapor control system that makes no pollution and recovers the VOC for recycling. Reduce air pollution and claim carbon credits.

CF Tech logo

CF Tech

Energy & Power

CF Technologies — are experts in Critical Fluid processes turning rancid restaurant and sewer trap grease into advanced renewable fuel.

Fysikes Biosolutions logo

Fysikes Biosolutions

Energy & Power

Fysikes Biosolutions — develops renewable green fuels (methanol, ammonia, and naphtas) via the production of hydrogen and concentrated CO2 from direct air capture and industrial CO2 capture technologies.

Accion Systems logo

Accion Systems

Transportation & Logistics

Accion Systems — develops in-space propulsion technologies that optimize scalability, performance, and efficiency to accelerate the exploration of space. Accion’s flagship product, TILE, uses proprietary electrospray thrusters, bringing electric propulsion to satellites of all sizes and redefining in-space capabilities for the 21st century.

Raise Green logo

Raise Green

Energy & Power

Raise Green — helps make it easy to start your own solar energy project or climate action company. Anyone can start a project on Raise Green and bring clean energy to their business or community.

JURA Bio logo

JURA Bio

Food, Water, & Land

Sol Clarity logo

Sol Clarity

Energy & Power

Sol Clarity — Solar panels need cleaning but there’s not enough water for it – with EDS just flip a switch to watch dust disappear. Dust settles, they don’t!

Via Separations logo

Via Separations

Manufacturing & Processing

Via Separations — is developing a new membrane material to make manufacturing processes more energy efficient—transforming the production of things like fertilizer and nylon, and with the potential to save a gigaton of carbon each year.

ALP Technologies logo

ALP Technologies

Energy & Power

Biosfera logo

Biosfera

Manufacturing & Processing

OpConnect logo

OpConnect

Transportation & Logistics

OpConnect — is an EV charger company that provides charging station hardware, software, and operating services. Their cloud-based software platform provides energy management, payment processing, scheduling and maintenance tickets, and support services for users.

7Analytics logo

7Analytics

Infrastructure & Construction

7Analytics is a climate-tech startup developing superior high-precision predictive models for floods, enhancing urban resilience to climate change. Our mission is to empower asset owners, insurance companies and governance with the tools needed to mitigate the impacts of extreme weather events.

Green Path Strategies logo

Green Path Strategies

Energy & Power

Heliotrope Photonics logo

Heliotrope Photonics

Energy & Power

Coating technology that enhances solar-panel performance by transforming wasted sunlight

Exakom logo

Exakom

Manufacturing & Processing

Exakom — is a pioneer in developing innovative data analysis products for the industrial automation market.

Ranger Solar logo

Ranger Solar

Energy & Power

Quantum Diamond Technologies logo

Quantum Diamond Technologies

Manufacturing & Processing

Malta logo

Malta

Energy & Power

Public Grid logo

Public Grid

Energy & Power

WattSto Energy logo

WattSto Energy

Energy & Power

We are a leading manufacturer of Long Duration Energy Storage (LDES) and Unique Hybrid Design System, providing Fast, Long Duration, Safe, Sustainable, and Cost-effective energy storage solutions at the microgrid and grid levels. Our innovative technology accelerates the integration of renewable energy, reduces carbon emissions, and provides power for a cleaner future.

CERT Systems logo

CERT Systems

Manufacturing & Processing

AmpUp logo

AmpUp

Transportation & Logistics

Forty Acres Consulting logo

Forty Acres Consulting

Transportation & Logistics

Forty Acres Consulting — consults for both large Fortune 500 companies and startups big and small. They specialize in scaling, supply chain, logistics, business development and healthcare.

Massachusetts Climatetech Studio logo

Massachusetts Climatetech Studio

Energy & Power

Maxwellian logo

Maxwellian

Energy & Power

Maxwellian — empowers mobility, energy, and agricultural industries by providing autonomous sanitization and monitoring solutions using unique optical IoT technology to ensure data accessibility for safety and asset management.

Mantel logo

Mantel

Manufacturing & Processing

Mantel — is developing the most thermally efficient and lowest cost carbon capture technology - helping the world reduce atmospheric CO2 levels.

SeaDeep logo

SeaDeep

Transportation & Logistics

SeaDeep — revolutionizes underwater assessments with AI-powered subsea vision for inspecting marine environments and substructures in real-time and with high-fidelity using low-cost, off-the-shelf cameras.

Transocean logo

Transocean

InventWood logo

InventWood

Infrastructure & Construction

InventWood — offers MettleWood, a super-strong wood material (that's stronger than steel), a highly insulative wood material (as a green substitute for polystyrene) and even a transparent wood material.

Sankofa Dynamics logo

Sankofa Dynamics

Food, Water, & Land

OpConnect logo

OpConnect

Transportation & Logistics

OpConnect — is an EV charger company that provides charging station hardware, software, and operating services. Their cloud-based software platform provides energy management, payment processing, scheduling and maintenance tickets, and support services for users.

7Analytics logo

7Analytics

Infrastructure & Construction

7Analytics is a climate-tech startup developing superior high-precision predictive models for floods, enhancing urban resilience to climate change. Our mission is to empower asset owners, insurance companies and governance with the tools needed to mitigate the impacts of extreme weather events.

Green Path Strategies logo

Green Path Strategies

Energy & Power

Heliotrope Photonics logo

Heliotrope Photonics

Energy & Power

Coating technology that enhances solar-panel performance by transforming wasted sunlight

Exakom logo

Exakom

Manufacturing & Processing

Exakom — is a pioneer in developing innovative data analysis products for the industrial automation market.

Ranger Solar logo

Ranger Solar

Energy & Power

Quantum Diamond Technologies logo

Quantum Diamond Technologies

Manufacturing & Processing

Malta logo

Malta

Energy & Power

Public Grid logo

Public Grid

Energy & Power

WattSto Energy logo

WattSto Energy

Energy & Power

We are a leading manufacturer of Long Duration Energy Storage (LDES) and Unique Hybrid Design System, providing Fast, Long Duration, Safe, Sustainable, and Cost-effective energy storage solutions at the microgrid and grid levels. Our innovative technology accelerates the integration of renewable energy, reduces carbon emissions, and provides power for a cleaner future.

CERT Systems logo

CERT Systems

Manufacturing & Processing

AmpUp logo

AmpUp

Transportation & Logistics

Forty Acres Consulting logo

Forty Acres Consulting

Transportation & Logistics

Forty Acres Consulting — consults for both large Fortune 500 companies and startups big and small. They specialize in scaling, supply chain, logistics, business development and healthcare.

Massachusetts Climatetech Studio logo

Massachusetts Climatetech Studio

Energy & Power

Maxwellian logo

Maxwellian

Energy & Power

Maxwellian — empowers mobility, energy, and agricultural industries by providing autonomous sanitization and monitoring solutions using unique optical IoT technology to ensure data accessibility for safety and asset management.

Mantel logo

Mantel

Manufacturing & Processing

Mantel — is developing the most thermally efficient and lowest cost carbon capture technology - helping the world reduce atmospheric CO2 levels.

SeaDeep logo

SeaDeep

Transportation & Logistics

SeaDeep — revolutionizes underwater assessments with AI-powered subsea vision for inspecting marine environments and substructures in real-time and with high-fidelity using low-cost, off-the-shelf cameras.

Transocean logo

Transocean

InventWood logo

InventWood

Infrastructure & Construction

InventWood — offers MettleWood, a super-strong wood material (that's stronger than steel), a highly insulative wood material (as a green substitute for polystyrene) and even a transparent wood material.

Sankofa Dynamics logo

Sankofa Dynamics

Food, Water, & Land

Greentown member working in a wet lab
Greentown community members collaborating
Greentown member pipetting in a lab
Greentown members at work in the incubator
[ 03 ]Who We Are

Greentown is a 501(c)(3) nonprofit helping climate entrepreneurs build faster.

The way the world makes energy, materials, and food is changing — and the next decade will decide whether that change makes life better: more energy with fewer emissions, more industry with cleaner air, more good jobs.

That future comes from entrepreneurs — the heroes who turn ideas into real products, real companies, and the jobs of the future. And the ones who make it are the ones with a community behind them.

For 15 years, Greentown has been that community — leaning in with the space, the people, the funding, and the first customers they need. Get behind the entrepreneurs building our future.

[ 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

0

New Jobs Created by Our Members, and Counting

[ 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
  • 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
For Investors
Founders and investors connecting at a Greentown incubator

Explore Investing

Tap into deal flow with the world’s largest community of climate and energy startups.

Explore Investing