Helping climatetech startupsTransformindustry faster

Ohmium International
Energy & Power

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.

Endeavor Composites
Manufacturing & Processing
Sustainably repurposing landfill-destined post-industrial fibers into semi-finished goods for the composite industry

Keystone Tower Systems
Energy & Power

CemCycle
Manufacturing & Processing

Gaia AI
Food, Water, & Land
Collecting high-quality biomass data in forests with drones, LiDAR, and computer vision

Piaggio Fast Forward
Transportation & Logistics

Synergetic LLC
Energy & Power
Synergetic — facilitates infrastructure solutions that unlock and unleash the power of renewables and eliminate or minimize obstacles to rapid renewable energy development and use in congested electricity markets.

Kanin Energy
Energy & Power
Monetizing industrial waste heat with reduced deployment risk via third-party financing

Skyre
Manufacturing & Processing

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

DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes

Titan Advanced Energy Solutions
Energy & Power
Advanced battery management systems for lithium-ion batteries

Universal Matter Inc.
Manufacturing & Processing
Producing graphene from carbon waste streams

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.

Medley Thermal
Energy & Power
Medley Thermal — links clean, cheap power to steam heating systems, lowering a customer's energy costs and carbon emissions.

ALLY Energy
Infrastructure & Construction
ALLY Energy — is an energy tech and human capital services company that offers packaged services and bespoke offerings such as talent engagement, culture development and design, recruitment training and coaching, and consulting.

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.

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.

Sealed
Infrastructure & Construction

Ohmium International
Energy & Power

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.

Endeavor Composites
Manufacturing & Processing
Sustainably repurposing landfill-destined post-industrial fibers into semi-finished goods for the composite industry

Keystone Tower Systems
Energy & Power

CemCycle
Manufacturing & Processing

Gaia AI
Food, Water, & Land
Collecting high-quality biomass data in forests with drones, LiDAR, and computer vision

Piaggio Fast Forward
Transportation & Logistics

Synergetic LLC
Energy & Power
Synergetic — facilitates infrastructure solutions that unlock and unleash the power of renewables and eliminate or minimize obstacles to rapid renewable energy development and use in congested electricity markets.

Kanin Energy
Energy & Power
Monetizing industrial waste heat with reduced deployment risk via third-party financing

Skyre
Manufacturing & Processing

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

DrinKicks
Food, Water, & Land
Repurposing food waste and recycled materials into shoes

Titan Advanced Energy Solutions
Energy & Power
Advanced battery management systems for lithium-ion batteries

Universal Matter Inc.
Manufacturing & Processing
Producing graphene from carbon waste streams

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.

Medley Thermal
Energy & Power
Medley Thermal — links clean, cheap power to steam heating systems, lowering a customer's energy costs and carbon emissions.

ALLY Energy
Infrastructure & Construction
ALLY Energy — is an energy tech and human capital services company that offers packaged services and bespoke offerings such as talent engagement, culture development and design, recruitment training and coaching, and consulting.

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.

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.

Sealed
Infrastructure & Construction

AeroShield Materials
Infrastructure & Construction
Insulating, porous aerogels for energy-efficient windows

Energy Web Foundation
Energy & Power

Nth Cycle
Manufacturing & Processing
Using electro-extraction to recover production-grade critical minerals from e-waste, low-grade ore, and mine tailings

Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power

Wellbore Consultants
Energy & Power
Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact

Verne
Energy & Power
Verne — develops hydrogen storage systems for zero-emission heavy-duty trucks.

Janta Power
Energy & Power
The world’s first 3D solar tower technology

RailPod
Transportation & Logistics

SWTCH Energy Inc.
Transportation & Logistics

Armeta
Armeta AI is the structured data layer for industrial facilities, turning legacy P&IDs into Material Take-Offs and EPA/OSHA regulatory inventories that power brownfield retrofits, LDAR programs, and energy transition projects across the installed base.

Ranger Solar
Energy & Power

rStream
Manufacturing & Processing
Autonomous waste-sorting system for non-industrial settings with critical waste volumes

Energiency
Manufacturing & Processing

LNK Energies
Energy & Power
LNK is an MIT spin-out enabling zero-emission heavy-duty mobility without a price premium.

Biospheric AI
Energy & Power
High-resolution, building-level energy demand forecasts for utilities and more

WhaleSpotter
Transportation & Logistics
Thermal imaging and AI to prevent marine mammal strikes at sea

Peak Power
Energy & Power
Energy-storage optimization software for commercial and industrial customers and energy storage project developers

Vecarius
Infrastructure & Construction
Heat-to-electricity technology to boost energy efficiency in mass markets

SepPure Technologies
Transportation & Logistics
SepPure — is dramatically reducing energy consumption and pollution globally by enabling the most effective chemical separation at a molecular level, without the traditional use of heat.

Tagup
Manufacturing & Processing
Tagup — has developed new machine learning methods and a software platform to predict industrial equipment failure, making physical infrastructure safer and more reliable.

AeroShield Materials
Infrastructure & Construction
Insulating, porous aerogels for energy-efficient windows

Energy Web Foundation
Energy & Power

Nth Cycle
Manufacturing & Processing
Using electro-extraction to recover production-grade critical minerals from e-waste, low-grade ore, and mine tailings

Sweetch Energy
Energy & Power
Membrane-based technology that taps into osmotic power

Wellbore Consultants
Energy & Power
Advanced subsurface stimulation systems to improve resource recovery while reducing energy intensity, water usage, and surface impact

Verne
Energy & Power
Verne — develops hydrogen storage systems for zero-emission heavy-duty trucks.

Janta Power
Energy & Power
The world’s first 3D solar tower technology

RailPod
Transportation & Logistics

SWTCH Energy Inc.
Transportation & Logistics

Armeta
Armeta AI is the structured data layer for industrial facilities, turning legacy P&IDs into Material Take-Offs and EPA/OSHA regulatory inventories that power brownfield retrofits, LDAR programs, and energy transition projects across the installed base.

Ranger Solar
Energy & Power

rStream
Manufacturing & Processing
Autonomous waste-sorting system for non-industrial settings with critical waste volumes

Energiency
Manufacturing & Processing

LNK Energies
Energy & Power
LNK is an MIT spin-out enabling zero-emission heavy-duty mobility without a price premium.

Biospheric AI
Energy & Power
High-resolution, building-level energy demand forecasts for utilities and more

WhaleSpotter
Transportation & Logistics
Thermal imaging and AI to prevent marine mammal strikes at sea

Peak Power
Energy & Power
Energy-storage optimization software for commercial and industrial customers and energy storage project developers

Vecarius
Infrastructure & Construction
Heat-to-electricity technology to boost energy efficiency in mass markets

SepPure Technologies
Transportation & Logistics
SepPure — is dramatically reducing energy consumption and pollution globally by enabling the most effective chemical separation at a molecular level, without the traditional use of heat.

Tagup
Manufacturing & Processing
Tagup — has developed new machine learning methods and a software platform to predict industrial equipment failure, making physical infrastructure safer and more reliable.




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.
Our Startups Have Raised Over $0B
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New Jobs Created by Our Members, and Counting
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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Access the most concentrated pipeline of vetted climatetech companies in North America. Partner on pilots, invest, or join as a corporate sponsor.

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