Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
Regenerative Resources logo

Regenerative Resources

Food, Water, & Land

Regenerative Resources — is an ecosystems services company that acquires highly-degraded land and transforms it in order to reuse it for aquaculture.

RailState logo

RailState

Transportation & Logistics

RailState — answers an increasing demand among freight customers, commodity traders, financial analysts, and government agencies for more current and granular visibility on railway volumes, performance, and condition.

Laminar logo

Laminar

Manufacturing & Processing

IoT platform optimizing industrial liquid and fluid systems in supply chain, manufacturing, and data centers

Exakom logo

Exakom

Manufacturing & Processing

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

Kanin Energy logo

Kanin Energy

Energy & Power

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

Packetized Energy logo

Packetized Energy

Energy & Power

Loop CO2 logo

Loop CO2

Manufacturing & Processing

Transforming CO₂ into sustainable polymers to create fully recyclable materials

Form Energy logo

Form Energy

Energy & Power

Cost-effective, multi-day energy-storage solutions

rStream logo

rStream

Manufacturing & Processing

Autonomous waste-sorting system for non-industrial settings with critical waste volumes

Upgraid logo

Upgraid

Infrastructure & Construction

AI and satellite data that diagnose buildings and run energy simulations, to produce ready-to-pitch upgrade proposals

Eugenie logo

Eugenie

Manufacturing & Processing

Eugenie — has developed an AI-based predictive maintenance platform that reduces 3% of the total HC production losses suffered by upstream oil and gas operations, thus helping to reduce billions of metric tons of GHG emissions annually.

Noir3 Energy logo

Noir3 Energy

Energy & Power

Noir3 Energy, LLC is partnered with Sonnen, a Shell New Energies company to pave the way for the Texas Energy Transition by deploying the VPP( Virtual Power Plant) concept within the multifamily, commercial & Industrial building spaces with a no money down approach that benefits all parties involved from families to the building owners.

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

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.

Terrapin Geothermics logo

Terrapin Geothermics

Energy & Power

Terrapin Geothermics — develops energy projects that reduce the emissions intensity of the industrial sectors.

AgZen logo

AgZen

Food, Water, & Land

AI that monitors leaf coverage during spraying to reduce pesticide usage

Molecule Works Inc. logo

Molecule Works Inc.

Manufacturing & Processing

We are developing a low-cost (less than $100/ton) solid sorbent DAC system based on our proprietary reactor/contactor configuration. This design yields very high productivity by delivering low pressure drop, very high heat and mass transfer rates and high sorbent loading. Heat is provided through ls closed loop low temp hot water system so that no steam is needed. After initial charge, no water is consumed. Regeneration is achieved in 20 to 30 minutes.

M2X Energy logo

M2X Energy

Manufacturing & Processing

AdaViv logo

AdaViv

Food, Water, & Land

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

XMtrace logo

XMtrace

Manufacturing & Processing

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

Regenerative Resources logo

Regenerative Resources

Food, Water, & Land

Regenerative Resources — is an ecosystems services company that acquires highly-degraded land and transforms it in order to reuse it for aquaculture.

RailState logo

RailState

Transportation & Logistics

RailState — answers an increasing demand among freight customers, commodity traders, financial analysts, and government agencies for more current and granular visibility on railway volumes, performance, and condition.

Laminar logo

Laminar

Manufacturing & Processing

IoT platform optimizing industrial liquid and fluid systems in supply chain, manufacturing, and data centers

Exakom logo

Exakom

Manufacturing & Processing

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

Kanin Energy logo

Kanin Energy

Energy & Power

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

Packetized Energy logo

Packetized Energy

Energy & Power

Loop CO2 logo

Loop CO2

Manufacturing & Processing

Transforming CO₂ into sustainable polymers to create fully recyclable materials

Form Energy logo

Form Energy

Energy & Power

Cost-effective, multi-day energy-storage solutions

rStream logo

rStream

Manufacturing & Processing

Autonomous waste-sorting system for non-industrial settings with critical waste volumes

Upgraid logo

Upgraid

Infrastructure & Construction

AI and satellite data that diagnose buildings and run energy simulations, to produce ready-to-pitch upgrade proposals

Eugenie logo

Eugenie

Manufacturing & Processing

Eugenie — has developed an AI-based predictive maintenance platform that reduces 3% of the total HC production losses suffered by upstream oil and gas operations, thus helping to reduce billions of metric tons of GHG emissions annually.

Noir3 Energy logo

Noir3 Energy

Energy & Power

Noir3 Energy, LLC is partnered with Sonnen, a Shell New Energies company to pave the way for the Texas Energy Transition by deploying the VPP( Virtual Power Plant) concept within the multifamily, commercial & Industrial building spaces with a no money down approach that benefits all parties involved from families to the building owners.

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

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.

Terrapin Geothermics logo

Terrapin Geothermics

Energy & Power

Terrapin Geothermics — develops energy projects that reduce the emissions intensity of the industrial sectors.

AgZen logo

AgZen

Food, Water, & Land

AI that monitors leaf coverage during spraying to reduce pesticide usage

Molecule Works Inc. logo

Molecule Works Inc.

Manufacturing & Processing

We are developing a low-cost (less than $100/ton) solid sorbent DAC system based on our proprietary reactor/contactor configuration. This design yields very high productivity by delivering low pressure drop, very high heat and mass transfer rates and high sorbent loading. Heat is provided through ls closed loop low temp hot water system so that no steam is needed. After initial charge, no water is consumed. Regeneration is achieved in 20 to 30 minutes.

M2X Energy logo

M2X Energy

Manufacturing & Processing

AdaViv logo

AdaViv

Food, Water, & Land

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

XMtrace logo

XMtrace

Manufacturing & Processing

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

Ensovi logo

Ensovi

Manufacturing & Processing

Cofactor recycling platform for sustainable drug manufacturing

LA NPDT logo

LA NPDT

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.

Sustonable logo

Sustonable

Manufacturing & Processing

Sustonable — mixes post-consumer recycled plastic bottles, recycled glass and natural stone to create a circular, high-quality surface material, that can be used for kitchen tops, wall panels and furniture purposes.

ConnectDER logo

ConnectDER

Energy & Power

ConnectDER — unlocks the massive potential of DERs by turning the meter socket into the utility’s all-in-one plug-in point for solar, storage, EVs, and beyond.

CGIS logo

CGIS

Energy & Power

XTPL logo

XTPL

Manufacturing & Processing

Additive manufacturing technology for ultra-precise printing of nanomaterials

Hygen logo

Hygen

Energy & Power

Quantum Diamond Technologies logo

Quantum Diamond Technologies

Manufacturing & Processing

Newfound Materials logo

Newfound Materials

Manufacturing & Processing

The synthesis design layer for making new materials.

Kornit Digital logo

Kornit Digital

Manufacturing & Processing

Kornit Digital (formerly Voxel8) — is developing digital manufacturing systems that revolutionize how footwear and athletic apparel are designed, manufactured, and delivered to consumers.

Circular Materials logo

Circular Materials

Manufacturing & Processing

Critical raw materials from industrial wastewater

Tycho Solutions logo

Tycho Solutions

Energy & Power

ICODOS logo

ICODOS

Manufacturing & Processing

Scalable clean methanol to decarbonize transport and chemicals

Corumat logo

Corumat

Manufacturing & Processing

Titan Advanced Energy Solutions logo

Titan Advanced Energy Solutions

Energy & Power

Advanced battery management systems for lithium-ion batteries

PolyQor (Innova8e) logo

PolyQor (Innova8e)

Manufacturing & Processing

Concept Loop is dedicated to repurposing low-value post-industrial and post-consumer plastic waste into sustainable building materials. Our flagship product, EcoGrete, is used in the production of high-strength paver blocks and tiles, offering an eco-friendly solution while reducing environmental impact.

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.

QuEra Computing logo

QuEra Computing

Thiozen logo

Thiozen

Manufacturing & Processing

Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen

Ensovi logo

Ensovi

Manufacturing & Processing

Cofactor recycling platform for sustainable drug manufacturing

LA NPDT logo

LA NPDT

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.

Sustonable logo

Sustonable

Manufacturing & Processing

Sustonable — mixes post-consumer recycled plastic bottles, recycled glass and natural stone to create a circular, high-quality surface material, that can be used for kitchen tops, wall panels and furniture purposes.

ConnectDER logo

ConnectDER

Energy & Power

ConnectDER — unlocks the massive potential of DERs by turning the meter socket into the utility’s all-in-one plug-in point for solar, storage, EVs, and beyond.

CGIS logo

CGIS

Energy & Power

XTPL logo

XTPL

Manufacturing & Processing

Additive manufacturing technology for ultra-precise printing of nanomaterials

Hygen logo

Hygen

Energy & Power

Quantum Diamond Technologies logo

Quantum Diamond Technologies

Manufacturing & Processing

Newfound Materials logo

Newfound Materials

Manufacturing & Processing

The synthesis design layer for making new materials.

Kornit Digital logo

Kornit Digital

Manufacturing & Processing

Kornit Digital (formerly Voxel8) — is developing digital manufacturing systems that revolutionize how footwear and athletic apparel are designed, manufactured, and delivered to consumers.

Circular Materials logo

Circular Materials

Manufacturing & Processing

Critical raw materials from industrial wastewater

Tycho Solutions logo

Tycho Solutions

Energy & Power

ICODOS logo

ICODOS

Manufacturing & Processing

Scalable clean methanol to decarbonize transport and chemicals

Corumat logo

Corumat

Manufacturing & Processing

Titan Advanced Energy Solutions logo

Titan Advanced Energy Solutions

Energy & Power

Advanced battery management systems for lithium-ion batteries

PolyQor (Innova8e) logo

PolyQor (Innova8e)

Manufacturing & Processing

Concept Loop is dedicated to repurposing low-value post-industrial and post-consumer plastic waste into sustainable building materials. Our flagship product, EcoGrete, is used in the production of high-strength paver blocks and tiles, offering an eco-friendly solution while reducing environmental impact.

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.

QuEra Computing logo

QuEra Computing

Thiozen logo

Thiozen

Manufacturing & Processing

Chemical waste-to-hydrogen cycle that removes hydrogen sulfide from gas streams and generates zero-emission hydrogen

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