Top 52 Green Energy startups in Canada
Dec 15, 2025
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20
1
Funding: $2.3B
Hydrostor is a creator of Advanced Compressed Air Energy Storage (A-CAES) - long-duration, emission-free, economical energy storage. Its method is as simple as it is effective: When surplus power is available on the grid, Hydrostor directs it through turbines, transforms it to compressed air and pump it into massive underground caverns. Once in the cavern, it is retained as potential energy. When the grid requires that power back, the storage straightforwardly inverts the process. Adiabatic compression reuses heat for efficiency, while hydrostatic control guarantees stable pressure, decreasing footprint and enabling flexible siting. The company declares delivery of up to 500MW for 8 hours and project lifetime up to 50+ years.
Hydrostor is a creator of Advanced Compressed Air Energy Storage (A-CAES) - long-duration, emission-free, economical energy storage. Its method is as simple as it is effective: When surplus power is available on the grid, Hydrostor directs it through turbines, transforms it to compressed air and pump it into massive underground caverns. Once in the cavern, it is retained as potential energy. When the grid requires that power back, the storage straightforwardly inverts the process. Adiabatic compression reuses heat for efficiency, while hydrostatic control guarantees stable pressure, decreasing footprint and enabling flexible siting. The company declares delivery of up to 500MW for 8 hours and project lifetime up to 50+ years.
2
Funding: $871.5M
Enerkem is a cleantech company transforming waste into transportation biofuels, renewable chemicals and everyday products.
Enerkem is a cleantech company transforming waste into transportation biofuels, renewable chemicals and everyday products.
3
Funding: $569.1M
Eavor is developing next-generation geothermal technologies. Unlike traditional geothermal systems (which require either direct access to hot aquifers or hydraulic fracturing), Eavor-Loop extracts heat from hot rock through conduction. Hot rock is found virtually everywhere beneath our feet, meaning Eavor can extract energy from virtually anywhere on the planet. Eavor-Loop is a closed-loop geothermal system drilled deep into the Earth via a series of multi-lateral wells. The system contains and circulates a patented working fluid that transfers heat from the rock. The fluid circulates naturally, without the need for an external pump, thanks to the thermosiphon effect. The heat is then used in commercial heating systems (e.g., greenhouses, district heating) or to generate electricity using conventional heat to power motors.
Eavor is developing next-generation geothermal technologies. Unlike traditional geothermal systems (which require either direct access to hot aquifers or hydraulic fracturing), Eavor-Loop extracts heat from hot rock through conduction. Hot rock is found virtually everywhere beneath our feet, meaning Eavor can extract energy from virtually anywhere on the planet. Eavor-Loop is a closed-loop geothermal system drilled deep into the Earth via a series of multi-lateral wells. The system contains and circulates a patented working fluid that transfers heat from the rock. The fluid circulates naturally, without the need for an external pump, thanks to the thermosiphon effect. The heat is then used in commercial heating systems (e.g., greenhouses, district heating) or to generate electricity using conventional heat to power motors.
4
Funding: $392M
General Fusion is developing utility-scale fusion power using a new, patent pending concept based on recent developments in Magnetized Target Fusion (MTF). It is the goal of General Fusion to demonstrate and commercialize this new clean, safe and economical concept by the end of the decade.
General Fusion is developing utility-scale fusion power using a new, patent pending concept based on recent developments in Magnetized Target Fusion (MTF). It is the goal of General Fusion to demonstrate and commercialize this new clean, safe and economical concept by the end of the decade.
5
Funding: $280M
Terrestrial Energy creates Integral Molten Salt Reactor plants that capture the full advantages of molten salt fission technology and the superiority of a molten salt as a reactor coolant.
Terrestrial Energy creates Integral Molten Salt Reactor plants that capture the full advantages of molten salt fission technology and the superiority of a molten salt as a reactor coolant.
6
Funding: $190.1M
Electrovaya manufactures lithium ion batteries and systems for electric vehicles, portable power for industrial electronics and energy storage for smart grids. Its unique manufacturing process is toxin- and emission-free.
Electrovaya manufactures lithium ion batteries and systems for electric vehicles, portable power for industrial electronics and energy storage for smart grids. Its unique manufacturing process is toxin- and emission-free.
7
Funding: $149.4M
Ecobee is a provider of Wi-Fi enabled smart thermostats comes with Amazon's Alexa voice assistant built in for residential and commercial applications.
Ecobee is a provider of Wi-Fi enabled smart thermostats comes with Amazon's Alexa voice assistant built in for residential and commercial applications.
8
Funding: $145M
dcbel offers AI-driven sustainable technologies which enable people to leverage solar energy to power their cars, homes, and lifestyles.
dcbel offers AI-driven sustainable technologies which enable people to leverage solar energy to power their cars, homes, and lifestyles.
9
Funding: $126.8M
Anaergia offers comprehensive, integrated solutions for municipal solid waste management, resource recovery in the wastewater sector and waste management for large agricultural and food processing enterprises. The company develops world-leading solutions for anaerobic digestion, pyrolysis, organic matter recovery and biogas upgrading. Anaergia's anaerobic digestion technology has been implemented at over 1,000 facilities in more than 17 countries. The company provides customers with equipment or designs, finances, builds and operates complete biorefineries. The company's goal is to become the world's leading producer of renewable fuels while simultaneously reducing global carbon emissions.
Anaergia offers comprehensive, integrated solutions for municipal solid waste management, resource recovery in the wastewater sector and waste management for large agricultural and food processing enterprises. The company develops world-leading solutions for anaerobic digestion, pyrolysis, organic matter recovery and biogas upgrading. Anaergia's anaerobic digestion technology has been implemented at over 1,000 facilities in more than 17 countries. The company provides customers with equipment or designs, finances, builds and operates complete biorefineries. The company's goal is to become the world's leading producer of renewable fuels while simultaneously reducing global carbon emissions.
10
Funding: $81.9M
E3 Metals is a lithium company with the goal of producing battery-quality lithium products to power the growing electrical revolution.
E3 Metals is a lithium company with the goal of producing battery-quality lithium products to power the growing electrical revolution.
11
Funding: $77.7M
GeologicAI is a technology company that provides core scanning, core logging, and mineral identificatoin. It uses AI to analyze rock scans.
GeologicAI is a technology company that provides core scanning, core logging, and mineral identificatoin. It uses AI to analyze rock scans.
12
Funding: $75.1M
BrainBox AI utilizes cloud-based computing, algorithms, and a proprietary process to create an autonomous building technology.
BrainBox AI utilizes cloud-based computing, algorithms, and a proprietary process to create an autonomous building technology.
13
Funding: $73.2M
e-Zinc is an electrochemical technology developer of energy storage solutions.
e-Zinc is an electrochemical technology developer of energy storage solutions.
14
Funding: $65.4M
ChargeLab is the Android of EV charging. Our hardware-agnostic software runs on the world’s most popular EV chargers.
ChargeLab is the Android of EV charging. Our hardware-agnostic software runs on the world’s most popular EV chargers.
15
Funding: $65M
Peak Power provides energy management solutions for commercial real estate and industrial companies.
Peak Power provides energy management solutions for commercial real estate and industrial companies.
16
Funding: $61.5M
Moment Energy develops clean, affordable, and reliable energy storage by repurposing retired electric vehicle batteries.
Moment Energy develops clean, affordable, and reliable energy storage by repurposing retired electric vehicle batteries.
17
Funding: $56M
FusionOne diverts plastic waste from landfill to convert it to Hydrogen and Electricity
FusionOne diverts plastic waste from landfill to convert it to Hydrogen and Electricity
18
Funding: $53.1M
Morgan Solar develops concentrated photovoltaic module, which features the industry’s most advanced optical designs and is up to 15% more efficient than conventional solar panels, and two-axis tracker, which offers significantly higher ROI compared to conventional fixed-track systems because it can be set up and serviced manually rather than having to use cranes and heavy machinery.
Morgan Solar develops concentrated photovoltaic module, which features the industry’s most advanced optical designs and is up to 15% more efficient than conventional solar panels, and two-axis tracker, which offers significantly higher ROI compared to conventional fixed-track systems because it can be set up and serviced manually rather than having to use cranes and heavy machinery.
19
Funding: $50.3M
Ionomr has developed revolutionary ion exchange membrane technology that drastically improves efficiency and performance while minimizing cost and environmental impact: hydrogen generation to fuel the hydrogen economy, hydrogen fuel cells to power vehicles, ships, buildings, conversion of CO2 to synthetic fuels
Ionomr has developed revolutionary ion exchange membrane technology that drastically improves efficiency and performance while minimizing cost and environmental impact: hydrogen generation to fuel the hydrogen economy, hydrogen fuel cells to power vehicles, ships, buildings, conversion of CO2 to synthetic fuels
20
Funding: $50M
Kontrol Integrates smart energy devices, energy software and energy retrofits to help organizations benefit from energy cost savings while minimizing greenhouse gas emissions.
Kontrol Integrates smart energy devices, energy software and energy retrofits to help organizations benefit from energy cost savings while minimizing greenhouse gas emissions.
