Helping climate & energy startupsTransformindustries

[ 02 ]Our Startups

Our Member Companies

View All Startups
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.

Fervo Energy logo

Fervo Energy

Energy & Power

Fervo Energy — is a next-generation geothermal power developer, delivering 24/7 carbon-free energy.

Lasso Labs logo

Lasso Labs

Food, Water, & Land

Plant-based meat technology engineered to replicate animal meat texture and nutritional profile

FAST Metals logo

FAST Metals

Manufacturing & Processing

Platform extracting iron, aluminum, scandium, titanium, and rare earth elements from industrial waste

AIRCO logo

AIRCO

Energy & Power

Platform to produce fully formulated synthetic fuels from captured CO₂ and hydrogen

Dandelion Energy logo

Dandelion Energy

Infrastructure & Construction

Geothermal heat pump systems for residential heating and cooling

CGIS logo

CGIS

Energy & Power

Clean-energy insurance services and risk-management solutions across the renewable energy industry

KUBO Greenhouse Projects logo

KUBO Greenhouse Projects

Food, Water, & Land

Making sustainable growing accessible with CO₂-negative, smart energy solutions

IncentiFind logo

IncentiFind

Infrastructure & Construction

Searchable database of U.S. green building incentives by property address

Transport Phenomena Technologies logo

Transport Phenomena Technologies

Manufacturing & Processing

Transport Phenomena Technologies — models software for thermal management of electronics.

XMtrace logo

XMtrace

Manufacturing & Processing

Low-cost methane monitoring system enabling real-time detection and autonomous response

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.

Clean Crop Technologies logo

Clean Crop Technologies

Food, Water, & Land

Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity

EQORE logo

EQORE

Energy & Power

AI-operated battery systems that help large facilities reduce electricity costs and manage grid demand

Thola logo

Thola

Energy & Power

AI-based energy forecasting and load management for industrial facilities and grid coordination

Haystack Ag logo

Haystack Ag

Food, Water, & Land

Soil organic carbon measurement system reducing testing costs while maintaining accuracy for carbon credit verification

Prime Lightworks logo

Prime Lightworks

Energy & Power

Prime Lightworks — makes breakthrough electric propulsion systems for space satellites that are solar-powered, fully renewable, and consume zero fuel. The company’s goal is to eliminate fuel emissions from space propulsion while drastically reducing cost and waste.

SkyH2O logo

SkyH2O

Food, Water, & Land

Atmospheric water generation stations that produce fresh potable water from air for commercial and industrial use

Voltaware logo

Voltaware

Energy & Power

Voltaware is an AI-powered energy intelligence company that helps utilities, energy innovators, and service providers unlock the full potential of energy data to drive energy efficiency and decarbonization.

WindRays Energy LLC logo

WindRays Energy LLC

Energy & Power

WindRays Energy LLC — develops new models of wind energy designs to make widespread implementation in densely populated areas more efficient and profitable.

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.

Fervo Energy logo

Fervo Energy

Energy & Power

Fervo Energy — is a next-generation geothermal power developer, delivering 24/7 carbon-free energy.

Lasso Labs logo

Lasso Labs

Food, Water, & Land

Plant-based meat technology engineered to replicate animal meat texture and nutritional profile

FAST Metals logo

FAST Metals

Manufacturing & Processing

Platform extracting iron, aluminum, scandium, titanium, and rare earth elements from industrial waste

AIRCO logo

AIRCO

Energy & Power

Platform to produce fully formulated synthetic fuels from captured CO₂ and hydrogen

Dandelion Energy logo

Dandelion Energy

Infrastructure & Construction

Geothermal heat pump systems for residential heating and cooling

CGIS logo

CGIS

Energy & Power

Clean-energy insurance services and risk-management solutions across the renewable energy industry

KUBO Greenhouse Projects logo

KUBO Greenhouse Projects

Food, Water, & Land

Making sustainable growing accessible with CO₂-negative, smart energy solutions

IncentiFind logo

IncentiFind

Infrastructure & Construction

Searchable database of U.S. green building incentives by property address

Transport Phenomena Technologies logo

Transport Phenomena Technologies

Manufacturing & Processing

Transport Phenomena Technologies — models software for thermal management of electronics.

XMtrace logo

XMtrace

Manufacturing & Processing

Low-cost methane monitoring system enabling real-time detection and autonomous response

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.

Clean Crop Technologies logo

Clean Crop Technologies

Food, Water, & Land

Improving food safety and reducing food waste by removing contaminants with food-grade gasses and electricity

EQORE logo

EQORE

Energy & Power

AI-operated battery systems that help large facilities reduce electricity costs and manage grid demand

Thola logo

Thola

Energy & Power

AI-based energy forecasting and load management for industrial facilities and grid coordination

Haystack Ag logo

Haystack Ag

Food, Water, & Land

Soil organic carbon measurement system reducing testing costs while maintaining accuracy for carbon credit verification

Prime Lightworks logo

Prime Lightworks

Energy & Power

Prime Lightworks — makes breakthrough electric propulsion systems for space satellites that are solar-powered, fully renewable, and consume zero fuel. The company’s goal is to eliminate fuel emissions from space propulsion while drastically reducing cost and waste.

SkyH2O logo

SkyH2O

Food, Water, & Land

Atmospheric water generation stations that produce fresh potable water from air for commercial and industrial use

Voltaware logo

Voltaware

Energy & Power

Voltaware is an AI-powered energy intelligence company that helps utilities, energy innovators, and service providers unlock the full potential of energy data to drive energy efficiency and decarbonization.

WindRays Energy LLC logo

WindRays Energy LLC

Energy & Power

WindRays Energy LLC — develops new models of wind energy designs to make widespread implementation in densely populated areas more efficient and profitable.

Root AI logo

Root AI

Food, Water, & Land

Intelligent robots to help growers manage efficient indoor farms

Solar Mantle logo

Solar Mantle

Infrastructure & Construction

Passive thermal film that reflects solar radiation and emits heat to reduce HVAC loads and energy consumption

Energy Intelligence logo

Energy Intelligence

Energy & Power

Energy Intelligence — develops ultra-compact energy harvesting systems that are installed on roads to turn the motion of vehicles into electricity.

Skytree logo

Skytree

Food, Water, & Land

Skytree — harnesses carbon through the power of decentralized direct air capture technology. They create one of the world’s smallest and simplest circular carbon solution to transform how food is grown to provide cleaner water.

Priority Investor Loans logo

Priority Investor Loans

Infrastructure & Construction

Simplified loan programs to fund real estate investors nationwide with income-producing properties

Atlas Robotics logo

Atlas Robotics

Transportation & Logistics

Physical AI autonomy platform for warehouse pallet movement and logistics automation

Folia Materials logo

Folia Materials

Manufacturing & Processing

Folia Materials — is creating a safer, cleaner, and healthier world with its antiviral paper.

RenewCO₂ logo

RenewCO₂

Manufacturing & Processing

Electrochemical process to convert CO₂ into fuels and chemicals, such as SAF and propylene glycol

Celadyne logo

Celadyne

Energy & Power

Hydrogen for defense, industry, and heavy-duty transport

AmHyTech logo

AmHyTech

Energy & Power

Electrolyzer converting ammonia to hydrogen at room temperature and ambient pressure for decentralized fuel generation

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.

Pirl logo

Pirl

Transportation & Logistics

Next-generation electric vehicle charging infrastructure

Browning the Green Space logo

Browning the Green Space

Food, Water, & Land

Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities

L3 Open Water Power logo

L3 Open Water Power

Energy & Power

Aluminum-water platform technology for underseas power generation

Revora Materials logo

Revora Materials

Energy & Power

Capturing CO2 and combining it with alkaline residues to produce solid carbonates for heavy industry

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.

Massachusetts Climatetech Studio logo

Massachusetts Climatetech Studio

Energy & Power

Matching teams of entrepreneurs with cutting-edge university and federal lab technologies

Hempitecture logo

Hempitecture

Manufacturing & Processing

Hempitecture (Ketchum, ID) is a manufacturer and distributor of biobased building materials, including their low embodied carbon insulation, HempWool®.

ALP Technologies logo

ALP Technologies

Energy & Power

Engineering and commercial-scale energy project company focused on developing renewable energy for lower-income regions

Stepwise logo

Stepwise

Energy & Power

Stepwise — makes home electrification effortless and affordable by reducing the infrastructure upgrades costs associated with installations and helping homeowners save money on their electricity bills through energy management.

Root AI logo

Root AI

Food, Water, & Land

Intelligent robots to help growers manage efficient indoor farms

Solar Mantle logo

Solar Mantle

Infrastructure & Construction

Passive thermal film that reflects solar radiation and emits heat to reduce HVAC loads and energy consumption

Energy Intelligence logo

Energy Intelligence

Energy & Power

Energy Intelligence — develops ultra-compact energy harvesting systems that are installed on roads to turn the motion of vehicles into electricity.

Skytree logo

Skytree

Food, Water, & Land

Skytree — harnesses carbon through the power of decentralized direct air capture technology. They create one of the world’s smallest and simplest circular carbon solution to transform how food is grown to provide cleaner water.

Priority Investor Loans logo

Priority Investor Loans

Infrastructure & Construction

Simplified loan programs to fund real estate investors nationwide with income-producing properties

Atlas Robotics logo

Atlas Robotics

Transportation & Logistics

Physical AI autonomy platform for warehouse pallet movement and logistics automation

Folia Materials logo

Folia Materials

Manufacturing & Processing

Folia Materials — is creating a safer, cleaner, and healthier world with its antiviral paper.

RenewCO₂ logo

RenewCO₂

Manufacturing & Processing

Electrochemical process to convert CO₂ into fuels and chemicals, such as SAF and propylene glycol

Celadyne logo

Celadyne

Energy & Power

Hydrogen for defense, industry, and heavy-duty transport

AmHyTech logo

AmHyTech

Energy & Power

Electrolyzer converting ammonia to hydrogen at room temperature and ambient pressure for decentralized fuel generation

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.

Pirl logo

Pirl

Transportation & Logistics

Next-generation electric vehicle charging infrastructure

Browning the Green Space logo

Browning the Green Space

Food, Water, & Land

Addressing diversity, equity, and inclusion across careers, companies, contracts, capital, and communities

L3 Open Water Power logo

L3 Open Water Power

Energy & Power

Aluminum-water platform technology for underseas power generation

Revora Materials logo

Revora Materials

Energy & Power

Capturing CO2 and combining it with alkaline residues to produce solid carbonates for heavy industry

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.

Massachusetts Climatetech Studio logo

Massachusetts Climatetech Studio

Energy & Power

Matching teams of entrepreneurs with cutting-edge university and federal lab technologies

Hempitecture logo

Hempitecture

Manufacturing & Processing

Hempitecture (Ketchum, ID) is a manufacturer and distributor of biobased building materials, including their low embodied carbon insulation, HempWool®.

ALP Technologies logo

ALP Technologies

Energy & Power

Engineering and commercial-scale energy project company focused on developing renewable energy for lower-income regions

Stepwise logo

Stepwise

Energy & Power

Stepwise — makes home electrification effortless and affordable by reducing the infrastructure upgrades costs associated with installations and helping homeowners save money on their electricity bills through energy management.

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

The way the world makes energy, materials, and food is being reinvented right now. What happens over the next decade will decide how much better it gets: more energy with fewer emissions, more industry with cleaner air, and more resiliency for communities everywhere.

That future is being built by entrepreneurs, the heroes who turn ideas into real products, real companies, and jobs of the future.

And we know they go further & faster when they're not doing it alone.

For 15 years, Greentown Labs has a home for founders, leaning in with the space, the people, the connections, and the first customers they need.

[ 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

With Greentown, 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 help innovation move faster, from lab to market.

  • Amazon
  • Amrize
  • Aramco
  • BCG
  • Chevron
  • Dassault Systemes
  • Emerson
  • Enel
  • Equinor
  • Foley Hoag
  • Fortescue
  • 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 in safety glasses machining a hardware prototype 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