Top 8 Green Energy startups in Copenhagen
Feb 16, 2026
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15
1
Funding: €130M
Monta is a platform for EV owners to charge seemless both at home and when away.
Monta is a platform for EV owners to charge seemless both at home and when away.
2
Funding: $28.4M
Saltfoss is developing a compact modular reactor based on molten fluoride salt (CMSR), installed on a floating power plant. This power plant can produce up to 800 MW whenever and wherever needed, supporting variable renewable energy generation on windless, cloudy days. In the CMSR, fuel is mixed with molten fluoride salt, which also serves as a coolant. This provides significant safety advantages. Unlike conventional nuclear reactors, the Saltfoss reactor operates at near-atmospheric pressure, eliminating a wide range of accident scenarios. At the end of the 24-year fuel cycle, the fuel is returned to the supplier, where the short-lived fission products are separated and stored.
Saltfoss is developing a compact modular reactor based on molten fluoride salt (CMSR), installed on a floating power plant. This power plant can produce up to 800 MW whenever and wherever needed, supporting variable renewable energy generation on windless, cloudy days. In the CMSR, fuel is mixed with molten fluoride salt, which also serves as a coolant. This provides significant safety advantages. Unlike conventional nuclear reactors, the Saltfoss reactor operates at near-atmospheric pressure, eliminating a wide range of accident scenarios. At the end of the 24-year fuel cycle, the fuel is returned to the supplier, where the short-lived fission products are separated and stored.
3
Funding: $26.6M
Hyme is maturing a grid-scale thermal energy storage solution based on molten salts to greatly improve the integration of sustainable energy in the energy system.
Hyme is maturing a grid-scale thermal energy storage solution based on molten salts to greatly improve the integration of sustainable energy in the energy system.
5
Funding: €7.3M
Reel is setting out to fight climate change by transforming electricity procurement, offering a way for companies to buy electricity on commercially attractive terms. In addition, Reel ties companies’ electricity procurement directly to the construction of new solar and wind parks – so the renewable energy transition is further supported.
Reel is setting out to fight climate change by transforming electricity procurement, offering a way for companies to buy electricity on commercially attractive terms. In addition, Reel ties companies’ electricity procurement directly to the construction of new solar and wind parks – so the renewable energy transition is further supported.
6
Funding: €5M
Mapping the climate impact of electricity, worldwide, and in real-time.
Mapping the climate impact of electricity, worldwide, and in real-time.
7
Funding: $4.5M
NitroVolt is a green ammonia startup developing a small-scale ammonia synthesis unit, to give farmers control over fertilizer production.
NitroVolt is a green ammonia startup developing a small-scale ammonia synthesis unit, to give farmers control over fertilizer production.
8
Green Therma a pioneering geothermal tech company has developed an innovative deep geothermal-based closed loop heating solution “Heat4EverTM” offering indefinitely CO2-free, renewable energy once installed.
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