Helping climatetech startupsTransformindustry faster

Innovator Energy
Energy & Power
Developing and deploying solutions in cooling, heating, and heat transfer

Carbon Upcycling Technologies
Manufacturing & Processing
Carbon Upcycling Technologies (Calgary, AB) is a circular decarbonization solution for hard-to-abate industries –- utilizing low-purity industrial CO2 and industrial by-products to decarbonize cement.

Solarflux
Energy & Power
SolarFlux — makes the FOCUS, a parabolic dish concentrator capable of delivering flexible, clean, inexpensive solar thermal power for a wide range of applications.

Solomon Group
Energy & Power
Solomon Group LLC — delivers solutions for engaging diverse communities, whether urban or rural, with workforce development, language access planning and energy efficiency infrastructure solutions in order to drive understanding and adoption of clean energy and energy-efficiency benefits and opportunities available to the general public.

Reverse Energy Solutions
Transportation & Logistics
Our startup implements innovative mobile solutions for solar panel recycling, drastically reducing logistic costs by 90% through streamlined collection and transportation processes.

Black Girls Do Engineer
Manufacturing & Processing
Black Girls Do Engineer Corporation - provides girls and young women ages 6 to 21 with mentoring, personal growth regimens, STEM projects and activities, STEM challenges, and guidance on career paths based on insight from professionals that are leaders in the STEM industry. The goal is to provide access, awareness, and advocate for two million Black-American girls to pursue STEM careers by the year 2050. The organization was created with the concern that Black-American girls and young women are not choosing STEM related careers, and their passion is to change the narrative and fix this issue.

Celadyne
Energy & Power

CarbonBlue
Food, Water, & Land

WeaveGrid
Energy & Power
WeaveGrid — is a software company that enables wide scale electric vehicle adoption by solving one of the most critical emerging electrification challenges — connecting a growing wave of electric vehicles to an electric grid that was not designed to support the high power needs of widespread charging.

Mitico
Energy & Power
C-Quester delivers a solution for carbon capture using dry granular metal carbonate (GMC) purification technology with integrated measurement, reporting, and verification.

SkyH2O
Food, Water, & Land
Atmospheric water generation for commercial and government projects

Energetic Insurance
Energy & Power
Unlocking solar financing for unrated or below investment grade organizations.

Helix Power
Energy & Power
Helix Power — is a developer of grid scale high power energy storage and power management systems. Their 1MW flywheel is designed for high-power, high-cycle, long-life applications such as metro rail and microgrids.

Rushnu
Manufacturing & Processing
Turns waste into carbon-neutral chemistry

A&I Power Group
Energy & Power
Electricity-generation systems that convert electromagnetic energy into electrical potential

Cala Systems
Energy & Power
Intelligent heat-pump water heaters

Reframe Systems
Infrastructure & Construction
Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

Adiabatic Materials
Manufacturing & Processing
Unlocking clean, affordable chemical production with electricity

Maple Materials
Manufacturing & Processing
Maple Materials (Richmond, California, U.S.) develops an electrolysis process to convert CO2 into graphite and oxygen.

Sensible
Energy & Power
Compact, refrigerant-free thermoelectric heat pump for quiet, efficient, climate-neutral HVAC

Innovator Energy
Energy & Power
Developing and deploying solutions in cooling, heating, and heat transfer

Carbon Upcycling Technologies
Manufacturing & Processing
Carbon Upcycling Technologies (Calgary, AB) is a circular decarbonization solution for hard-to-abate industries –- utilizing low-purity industrial CO2 and industrial by-products to decarbonize cement.

Solarflux
Energy & Power
SolarFlux — makes the FOCUS, a parabolic dish concentrator capable of delivering flexible, clean, inexpensive solar thermal power for a wide range of applications.

Solomon Group
Energy & Power
Solomon Group LLC — delivers solutions for engaging diverse communities, whether urban or rural, with workforce development, language access planning and energy efficiency infrastructure solutions in order to drive understanding and adoption of clean energy and energy-efficiency benefits and opportunities available to the general public.

Reverse Energy Solutions
Transportation & Logistics
Our startup implements innovative mobile solutions for solar panel recycling, drastically reducing logistic costs by 90% through streamlined collection and transportation processes.

Black Girls Do Engineer
Manufacturing & Processing
Black Girls Do Engineer Corporation - provides girls and young women ages 6 to 21 with mentoring, personal growth regimens, STEM projects and activities, STEM challenges, and guidance on career paths based on insight from professionals that are leaders in the STEM industry. The goal is to provide access, awareness, and advocate for two million Black-American girls to pursue STEM careers by the year 2050. The organization was created with the concern that Black-American girls and young women are not choosing STEM related careers, and their passion is to change the narrative and fix this issue.

Celadyne
Energy & Power

CarbonBlue
Food, Water, & Land

WeaveGrid
Energy & Power
WeaveGrid — is a software company that enables wide scale electric vehicle adoption by solving one of the most critical emerging electrification challenges — connecting a growing wave of electric vehicles to an electric grid that was not designed to support the high power needs of widespread charging.

Mitico
Energy & Power
C-Quester delivers a solution for carbon capture using dry granular metal carbonate (GMC) purification technology with integrated measurement, reporting, and verification.

SkyH2O
Food, Water, & Land
Atmospheric water generation for commercial and government projects

Energetic Insurance
Energy & Power
Unlocking solar financing for unrated or below investment grade organizations.

Helix Power
Energy & Power
Helix Power — is a developer of grid scale high power energy storage and power management systems. Their 1MW flywheel is designed for high-power, high-cycle, long-life applications such as metro rail and microgrids.

Rushnu
Manufacturing & Processing
Turns waste into carbon-neutral chemistry

A&I Power Group
Energy & Power
Electricity-generation systems that convert electromagnetic energy into electrical potential

Cala Systems
Energy & Power
Intelligent heat-pump water heaters

Reframe Systems
Infrastructure & Construction
Offsite construction of zero-carbon buildings with volumetric modules manufactured with robotic microfactories

Adiabatic Materials
Manufacturing & Processing
Unlocking clean, affordable chemical production with electricity

Maple Materials
Manufacturing & Processing
Maple Materials (Richmond, California, U.S.) develops an electrolysis process to convert CO2 into graphite and oxygen.

Sensible
Energy & Power
Compact, refrigerant-free thermoelectric heat pump for quiet, efficient, climate-neutral HVAC

Soliyarn
Manufacturing & Processing
Soliyarn — employs a unique (dry) process to vapor coat polymers on textiles, which leads to washable electronic clothing without wires or bulk.

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.

INpower
INpower — is a specialty insurance brokerage & risk management firm that knows that business innovation generates risk. Their risk management mission is simple: to provide their clients with deep insurance expertise, thoughtful enterprise risk management counsel, and fierce claims advocacy supported by offices in: Houston, Boston and Irvine, California.

Full Cycle Bioplastics
Manufacturing & Processing

Active Surfaces
Energy & Power
Flexible, lightweight solar panels that turn any surface into solar

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

Dsider
Energy & Power
SaaS platform to accelerate the expansion of energy-transition projects

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.

Verdicity
Infrastructure & Construction
AI-enabled, customizable smart building, information, and facility services for building vendors

Searover Robotics and Software
Manufacturing & Processing

Acelerex
Energy & Power
Acelerex — is a pioneer in providing SaaS-based solutions to the challenges of integrating renewables, energy storage and electric vehicles into the 21st century power grid.

ZS2 Technologies
Manufacturing & Processing
ZS2 Technologies (Calgary, AB) creates magnesium-based advanced building products that can store up to 20 wt.% CO2 from proprietary carbon capture technology.

Beantrust
Food, Water, & Land

ONEPREDICT
Manufacturing & Processing
Predicting and diagnosing the status of key industrial assets for the energy and manufacturing industries

Infinite Cooling
Infrastructure & Construction
Infinite Cooling — reduces water consumption in industrial plants by capturing cooling tower plumes. The company has a patent-pending technology developed at MIT that uses electric fields to capture water from the plumes leaving cooling towers.

PolyJoule
Energy & Power
PolyJoule — develops low-cost, high-power energy storage designed to strengthen the power grid.

InnoSepra
Energy & Power

Boronite
Manufacturing & Processing

Octavia Carbon Co
Manufacturing & Processing
Geothermal heat to capture and mineralize CO₂

SensorEra
Food, Water, & Land
SensorEra — provides real time induced seismic monitoring service for unconventional oil and gas production, salt water disposal and carbon injection and sequestration for CCUS.

Soliyarn
Manufacturing & Processing
Soliyarn — employs a unique (dry) process to vapor coat polymers on textiles, which leads to washable electronic clothing without wires or bulk.

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.

INpower
INpower — is a specialty insurance brokerage & risk management firm that knows that business innovation generates risk. Their risk management mission is simple: to provide their clients with deep insurance expertise, thoughtful enterprise risk management counsel, and fierce claims advocacy supported by offices in: Houston, Boston and Irvine, California.

Full Cycle Bioplastics
Manufacturing & Processing

Active Surfaces
Energy & Power
Flexible, lightweight solar panels that turn any surface into solar

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

Dsider
Energy & Power
SaaS platform to accelerate the expansion of energy-transition projects

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.

Verdicity
Infrastructure & Construction
AI-enabled, customizable smart building, information, and facility services for building vendors

Searover Robotics and Software
Manufacturing & Processing

Acelerex
Energy & Power
Acelerex — is a pioneer in providing SaaS-based solutions to the challenges of integrating renewables, energy storage and electric vehicles into the 21st century power grid.

ZS2 Technologies
Manufacturing & Processing
ZS2 Technologies (Calgary, AB) creates magnesium-based advanced building products that can store up to 20 wt.% CO2 from proprietary carbon capture technology.

Beantrust
Food, Water, & Land

ONEPREDICT
Manufacturing & Processing
Predicting and diagnosing the status of key industrial assets for the energy and manufacturing industries

Infinite Cooling
Infrastructure & Construction
Infinite Cooling — reduces water consumption in industrial plants by capturing cooling tower plumes. The company has a patent-pending technology developed at MIT that uses electric fields to capture water from the plumes leaving cooling towers.

PolyJoule
Energy & Power
PolyJoule — develops low-cost, high-power energy storage designed to strengthen the power grid.

InnoSepra
Energy & Power

Boronite
Manufacturing & Processing

Octavia Carbon Co
Manufacturing & Processing
Geothermal heat to capture and mineralize CO₂

SensorEra
Food, Water, & Land
SensorEra — provides real time induced seismic monitoring service for unconventional oil and gas production, salt water disposal and carbon injection and sequestration for CCUS.




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.
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Startups bring the breakthroughs. Corporate partners bring the scale, infrastructure, expertise, and capital to make them matter.
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.


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