Helping climatetech startupsTransformindustry

[ 02 ]Our Startups

Our Member Companies

View All Startups
SeebeckCell Technologies logo

SeebeckCell Technologies

Manufacturing & Processing

SeebeckCell Technologies — develops and manufactures liquid-based thermoelectric modules, power generators, and waste heat recovery systems.

Element Resources logo

Element Resources

Energy & Power

Developing large-scale green hydrogen projects

Malta logo

Malta

Energy & Power

Aelun logo

Aelun

DASH Clean Energy logo

DASH Clean Energy

Energy & Power

Dash Clean Energy — has developed a hydrogen simulation tool that can be used by developers to evaluate existing and planned wind and solar projects and how to manage and produce hydrogen cost competitively with existing hydrogen production pathways.

Carbontec logo

Carbontec

Infrastructure & Construction

9T Labs logo

9T Labs

Manufacturing & Processing

Hyperframe logo

Hyperframe

Infrastructure & Construction

BlueShift Carbon logo

BlueShift Carbon

Manufacturing & Processing

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

Tato Labs logo

Tato Labs

Manufacturing & Processing

Bioplastic products and packaging solutions made from potato starch

Spare-it logo

Spare-it

Manufacturing & Processing

Spare-it — is a catalyst for sustainability in the workplace.

HyperKelp logo

HyperKelp

Food, Water, & Land

HyperKelp — produces the Kelp Smart Buoy—a hosted payload platform capable of carrying hundreds of sensors—that collects and transmits marine-level data for wind farmers, climate scientists, and military intelligence officials.

Timbergrove logo

Timbergrove

Energy & Power

Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency

Sublime Systems logo

Sublime Systems

Infrastructure & Construction

Decarbonizing cement-making with an electrochemical process that replaces fossil-fuel-fired kilns

Biosimo logo

Biosimo

Manufacturing & Processing

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

ZettaConn logo

ZettaConn

Energy & Power

Adept Materials logo

Adept Materials

Infrastructure & Construction

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

Syzygy Plasmonics logo

Syzygy Plasmonics

Manufacturing & Processing

Syzygy Plasmonics — is a technology company developing a new type of photocatalytic chemical reactor to revolutionize the industrial gas, chemical, and energy industries.

CERT Systems logo

CERT Systems

Manufacturing & Processing

Salient Predictions logo

Salient Predictions

Food, Water, & Land

Salient Predictions uses ocean data and machine learning to provide the world's most accurate weather forecasts from 3 weeks to 9 months out, enabling climate change resiliency and mitigation within industry.

SeebeckCell Technologies logo

SeebeckCell Technologies

Manufacturing & Processing

SeebeckCell Technologies — develops and manufactures liquid-based thermoelectric modules, power generators, and waste heat recovery systems.

Element Resources logo

Element Resources

Energy & Power

Developing large-scale green hydrogen projects

Malta logo

Malta

Energy & Power

Aelun logo

Aelun

DASH Clean Energy logo

DASH Clean Energy

Energy & Power

Dash Clean Energy — has developed a hydrogen simulation tool that can be used by developers to evaluate existing and planned wind and solar projects and how to manage and produce hydrogen cost competitively with existing hydrogen production pathways.

Carbontec logo

Carbontec

Infrastructure & Construction

9T Labs logo

9T Labs

Manufacturing & Processing

Hyperframe logo

Hyperframe

Infrastructure & Construction

BlueShift Carbon logo

BlueShift Carbon

Manufacturing & Processing

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

Tato Labs logo

Tato Labs

Manufacturing & Processing

Bioplastic products and packaging solutions made from potato starch

Spare-it logo

Spare-it

Manufacturing & Processing

Spare-it — is a catalyst for sustainability in the workplace.

HyperKelp logo

HyperKelp

Food, Water, & Land

HyperKelp — produces the Kelp Smart Buoy—a hosted payload platform capable of carrying hundreds of sensors—that collects and transmits marine-level data for wind farmers, climate scientists, and military intelligence officials.

Timbergrove logo

Timbergrove

Energy & Power

Building AI + IoT solutions that connect and optimize assets, boosting visibility, safety, and efficiency

Sublime Systems logo

Sublime Systems

Infrastructure & Construction

Decarbonizing cement-making with an electrochemical process that replaces fossil-fuel-fired kilns

Biosimo logo

Biosimo

Manufacturing & Processing

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

ZettaConn logo

ZettaConn

Energy & Power

Adept Materials logo

Adept Materials

Infrastructure & Construction

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

Syzygy Plasmonics logo

Syzygy Plasmonics

Manufacturing & Processing

Syzygy Plasmonics — is a technology company developing a new type of photocatalytic chemical reactor to revolutionize the industrial gas, chemical, and energy industries.

CERT Systems logo

CERT Systems

Manufacturing & Processing

Salient Predictions logo

Salient Predictions

Food, Water, & Land

Salient Predictions uses ocean data and machine learning to provide the world's most accurate weather forecasts from 3 weeks to 9 months out, enabling climate change resiliency and mitigation within industry.

Loci Controls logo

Loci Controls

Food, Water, & Land

Stork, a Fluor Company logo

Stork, a Fluor Company

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.

ATOM-X logo

ATOM-X

Energy & Power

Transforming CO₂ into sustainable fuels like green methanol

Enviro Power Technologies logo

Enviro Power Technologies

Energy & Power

Enviro Power Technologies — is replacing aging heating equipment with their breakthrough SmartWatt heat & power technology providing energy solutions servicing millions of homes, businesses and their power utilities in lowering ever increasing utility bills and increasing resiliency and reliability.

Full Cycle Bioplastics logo

Full Cycle Bioplastics

Manufacturing & Processing

Terralytiq logo

Terralytiq

Manufacturing & Processing

Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon

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.

SEEDiA logo

SEEDiA

Energy & Power

SEEDiA — is making cities sustainable by reducing CO2 emissions and keeping citizen connected and charged up.

Global ROC logo

Global ROC

Food, Water, & Land

Global ROC — provides an innovative technology solution for cooling tower systems that reduces chemical consumption, saves water, and decreases energy costs.

Thiozen logo

Thiozen

Manufacturing & Processing

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

Corrolytics logo

Corrolytics

Energy & Power

Patented corrosion intelligence platform delivering near real-time corrosion detection and actionable insights

Exakom logo

Exakom

Manufacturing & Processing

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

TerraFixing logo

TerraFixing

Manufacturing & Processing

TerraFixing — develops a direct-air-capture technology for cold climates using zeolite-based adsorbent materials.

Biosfera logo

Biosfera

Manufacturing & Processing

Green Path Strategies logo

Green Path Strategies

Energy & Power

Freshr Technologies logo

Freshr Technologies

Food, Water, & Land

Amplified Industries logo

Amplified Industries

Infrastructure & Construction

AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues

Cellen logo

Cellen

Transportation & Logistics

Hydrogen-powered drones, combining UAV technology with hydrogen refueling solutions

Sparkplug Power logo

Sparkplug Power

Energy & Power

Energy-storage-as-a-service for municipal utilities and commercial businesses

Loci Controls logo

Loci Controls

Food, Water, & Land

Stork, a Fluor Company logo

Stork, a Fluor Company

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.

ATOM-X logo

ATOM-X

Energy & Power

Transforming CO₂ into sustainable fuels like green methanol

Enviro Power Technologies logo

Enviro Power Technologies

Energy & Power

Enviro Power Technologies — is replacing aging heating equipment with their breakthrough SmartWatt heat & power technology providing energy solutions servicing millions of homes, businesses and their power utilities in lowering ever increasing utility bills and increasing resiliency and reliability.

Full Cycle Bioplastics logo

Full Cycle Bioplastics

Manufacturing & Processing

Terralytiq logo

Terralytiq

Manufacturing & Processing

Digital models that deliver Scope 3 hotspots, actionable initiatives, and supplier engagement to cut cost and carbon

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.

SEEDiA logo

SEEDiA

Energy & Power

SEEDiA — is making cities sustainable by reducing CO2 emissions and keeping citizen connected and charged up.

Global ROC logo

Global ROC

Food, Water, & Land

Global ROC — provides an innovative technology solution for cooling tower systems that reduces chemical consumption, saves water, and decreases energy costs.

Thiozen logo

Thiozen

Manufacturing & Processing

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

Corrolytics logo

Corrolytics

Energy & Power

Patented corrosion intelligence platform delivering near real-time corrosion detection and actionable insights

Exakom logo

Exakom

Manufacturing & Processing

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

TerraFixing logo

TerraFixing

Manufacturing & Processing

TerraFixing — develops a direct-air-capture technology for cold climates using zeolite-based adsorbent materials.

Biosfera logo

Biosfera

Manufacturing & Processing

Green Path Strategies logo

Green Path Strategies

Energy & Power

Freshr Technologies logo

Freshr Technologies

Food, Water, & Land

Amplified Industries logo

Amplified Industries

Infrastructure & Construction

AI-driven control solution for oil wells using acoustic signals and edge computing to reduce costs and detect issues

Cellen logo

Cellen

Transportation & Logistics

Hydrogen-powered drones, combining UAV technology with hydrogen refueling solutions

Sparkplug Power logo

Sparkplug Power

Energy & Power

Energy-storage-as-a-service for municipal utilities and commercial businesses

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