Helping climatetech startupsTransformindustry faster

FibreCoat
Transportation & Logistics

Sustainable America
Food, Water, & Land

Katz Water Technologies
Energy & Power
Katz Water Technologies — recycles their customers’ waste water instead of disposing it and sells the components as valuable materials.

CGIS
Energy & Power

Innoveering
Manufacturing & Processing

HEXAspec
Energy & Power
Thermal management solutions for semiconductor chips, enabling more powerful hardware

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.

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

Provocative
Manufacturing & Processing
Replacing data centers’ cooling systems with carbon capture

DirtSat
Food, Water, & Land
DirtSat — looks at ways space resources can have profound impacts on some of our planet’s biggest challenges and is reframing urban food production pathways and climate resilience for Smart City adoption.

BlueShift Carbon
Manufacturing & Processing
Electrochemical CO₂-removal solution that’s low-cost, energy-efficient, redox-based, and membrane-free

AmHyTech
Energy & Power
We build last-mile ammonia infrastructure for marine fuel, agriculture, and industrial applications.

Aquasaic
Food, Water, & Land

Nfinite Nanotech
Manufacturing & Processing

Salient Energy
Energy & Power

Apitronics
Food, Water, & Land

Visolis
Infrastructure & Construction

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

Kula Bio
Energy & Power
Kula Bio — supercharges natural nitrogen-fixing microbes with renewable energy in order to deliver reliable, low-cost organic biofertilizers.

Texas Geothermal Energy Alliance
Energy & Power

FibreCoat
Transportation & Logistics

Sustainable America
Food, Water, & Land

Katz Water Technologies
Energy & Power
Katz Water Technologies — recycles their customers’ waste water instead of disposing it and sells the components as valuable materials.

CGIS
Energy & Power

Innoveering
Manufacturing & Processing

HEXAspec
Energy & Power
Thermal management solutions for semiconductor chips, enabling more powerful hardware

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.

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

Provocative
Manufacturing & Processing
Replacing data centers’ cooling systems with carbon capture

DirtSat
Food, Water, & Land
DirtSat — looks at ways space resources can have profound impacts on some of our planet’s biggest challenges and is reframing urban food production pathways and climate resilience for Smart City adoption.

BlueShift Carbon
Manufacturing & Processing
Electrochemical CO₂-removal solution that’s low-cost, energy-efficient, redox-based, and membrane-free

AmHyTech
Energy & Power
We build last-mile ammonia infrastructure for marine fuel, agriculture, and industrial applications.

Aquasaic
Food, Water, & Land

Nfinite Nanotech
Manufacturing & Processing

Salient Energy
Energy & Power

Apitronics
Food, Water, & Land

Visolis
Infrastructure & Construction

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

Kula Bio
Energy & Power
Kula Bio — supercharges natural nitrogen-fixing microbes with renewable energy in order to deliver reliable, low-cost organic biofertilizers.

Texas Geothermal Energy Alliance
Energy & Power

Climate Core Capital
Infrastructure & Construction
Climate Core — runs a climate-oriented real estate strategy, namely acquiring buildings in low climate risk locations and making those buildings the most resilient in the built environment.

energyGuard
Infrastructure & Construction

Desktop Health
Manufacturing & Processing
Desktop Health (formerly Beacon Bio) — is designing biodegradable and biomimetic tissue grafts using novel materials science and 3D printing technologies.

RISE Robotics
Manufacturing & Processing

Renu Energy
Manufacturing & Processing
Converting waste and converting it into fuels and energy helping to create a more responsible environment

Sistine Solar
Energy & Power
Sistine Solar — creates SolarSkin, an aesthetic overlay that transforms the look of any solar panel. It can make the panel blend in with a homeowner’s roof—no matter what color, pattern, or style.

Immedia Power
Energy & Power
Immedia Power gives space-constrained sites the on-site power they need to run and scale without waiting on the grid.

Ebb Carbon
Food, Water, & Land
Ebb Carbon — removes atmospheric CO2 and reduces ocean acidification. Using a proprietary electrochemical system to separate acid out of salty water, Ebb de-acidifies the ocean and enhances its natural ability to capture CO2 from the air and store it safely and stably as bicarbonate for at least 10,000 years.

Littoral Power Systems
Energy & Power
LPS sells and maintains innovative, cost-effective, low impact hydropower and ocean power equipment.

Kausalyze
Manufacturing & Processing
True root-cause analysis for chemicals, energy, and pharmaceutical companies

Hyperframe
Infrastructure & Construction

Arista Solutions

Phlair
Manufacturing & Processing
Renewable-energy-powered DAC system using an electrochemical process for acid and base generation

ATOM-X
Energy & Power
Transforming CO₂ into sustainable fuels like green methanol

Verdox Inc
Manufacturing & Processing
Verdox — is making scalable, cost-effective carbon capture and removal a reality. Founded in late 2019 by Dr. Brian Baynes, Prof. T. Alan Hatton, and Dr. Sahag Voskian, the company is commercializing its electroswing adsorption (ESA) platform technology, originally developed at MIT, to remove carbon dioxide from industrial emissions and the air with 70% energy savings versus conventional approaches.

LA NPDT

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

Phoenix Tailings
Manufacturing & Processing
Waste-free, net-zero, cost-competitive rare-earth-metal refining

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

Return To Vendor
Manufacturing & Processing

Climate Core Capital
Infrastructure & Construction
Climate Core — runs a climate-oriented real estate strategy, namely acquiring buildings in low climate risk locations and making those buildings the most resilient in the built environment.

energyGuard
Infrastructure & Construction

Desktop Health
Manufacturing & Processing
Desktop Health (formerly Beacon Bio) — is designing biodegradable and biomimetic tissue grafts using novel materials science and 3D printing technologies.

RISE Robotics
Manufacturing & Processing

Renu Energy
Manufacturing & Processing
Converting waste and converting it into fuels and energy helping to create a more responsible environment

Sistine Solar
Energy & Power
Sistine Solar — creates SolarSkin, an aesthetic overlay that transforms the look of any solar panel. It can make the panel blend in with a homeowner’s roof—no matter what color, pattern, or style.

Immedia Power
Energy & Power
Immedia Power gives space-constrained sites the on-site power they need to run and scale without waiting on the grid.

Ebb Carbon
Food, Water, & Land
Ebb Carbon — removes atmospheric CO2 and reduces ocean acidification. Using a proprietary electrochemical system to separate acid out of salty water, Ebb de-acidifies the ocean and enhances its natural ability to capture CO2 from the air and store it safely and stably as bicarbonate for at least 10,000 years.

Littoral Power Systems
Energy & Power
LPS sells and maintains innovative, cost-effective, low impact hydropower and ocean power equipment.

Kausalyze
Manufacturing & Processing
True root-cause analysis for chemicals, energy, and pharmaceutical companies

Hyperframe
Infrastructure & Construction

Arista Solutions

Phlair
Manufacturing & Processing
Renewable-energy-powered DAC system using an electrochemical process for acid and base generation

ATOM-X
Energy & Power
Transforming CO₂ into sustainable fuels like green methanol

Verdox Inc
Manufacturing & Processing
Verdox — is making scalable, cost-effective carbon capture and removal a reality. Founded in late 2019 by Dr. Brian Baynes, Prof. T. Alan Hatton, and Dr. Sahag Voskian, the company is commercializing its electroswing adsorption (ESA) platform technology, originally developed at MIT, to remove carbon dioxide from industrial emissions and the air with 70% energy savings versus conventional approaches.

LA NPDT

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

Phoenix Tailings
Manufacturing & Processing
Waste-free, net-zero, cost-competitive rare-earth-metal refining

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

Return To Vendor
Manufacturing & Processing




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.


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.

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