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Polar Night Energy competitors & alternatives
The 12 closest competitors and alternatives to Polar Night Energy among cleantech companies — ranked by similarity to what Polar Night Energy actually does, not by market-cap band.
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About Polar Night Energy
Polar Night Energy, founded in 2018 and based in Tampere, Finland, is an innovative energy storage company that designs and manufactures high-temperature thermal energy storage systems to help transition industrial sectors from fossil fuels to renewable energy.
Polar Night Energy at a glance
Polar Night Energy is a cleantech company headquartered in Finland. Its most recent funding round, Seed, raised $8.2M in April 2024. Xcout tracks 2 named people at Polar Night Energy, including Markku Ylönen (Founder).
Polar Night Energy leadership
- Markku YlönenFounder
- Tommi EronenFounder
Polar Night Energy funding rounds
Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Seed | $8.2M | 6 named |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Top 12 Polar Night Energy competitors
Ranked by semantic similarity — how close each company is to Polar Night Energy by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
ClimateTech
Photoncycle AS is a renewable energy company founded in 2020 that provides advanced energy systems. The company operates from its headquarters located in Oslo, Norway.
Climate Tech
STABL Energy is a Munich-based technology company founded in 2019 that offers resource-efficient second-life battery storage systems to make renewable energy reliable and sustainable.
Similar cleantech company
Octave.energy is a profitable Belgian clean technology company that provides BESS and EMS solutions. It recently raised 10 million euros in a series A funding round to scale its battery energy storage systems and energy management solutions across Europe.
Similar cleantech company
Battolyser is a Netherlands-based cleantech company developing integrated battery-electrolyser systems that store electricity and can produce hydrogen when charged beyond the battery’s capacity. Its technology is intended for renewable-energy integration, grid balancing, and industrial users seeking flexible hydrogen production and energy storage.
Similar cleantech company
LightSail Energy was a U.S. cleantech startup that developed energy-storage systems based on compressed air, using thermal-management technology to improve efficiency. It targeted utilities and commercial or industrial customers needing grid-scale or distributed electricity storage; the company ceased operations around 2018.
Similar cleantech company
Tozero is a Munich-based battery-recycling company focused on recovering valuable materials from end-of-life lithium-ion batteries. It serves the battery and electric-mobility supply chain by producing recycled raw materials for reuse in new batteries.
Greentech
Exergy3 is a clean-tech spinout company headquartered in Edinburgh, United Kingdom, focused on providing solutions for decarbonising industry with cheaper and greener thermal energy.
Environmental Technology
Ocean GeoLoop develops and commercializes proprietary, chemical-free carbon capture technology for industrial point-source emitters. The company provides scalable, energy-efficient solutions and testing services to help heavy industries reduce carbon emissions and achieve sustainability targets.
Regulated Electric
Terrestrial Energy is a U.S. nuclear technology company working on Generation IV nuclear technology. The nuclear plant is designed to produce cost-competitive, high-temperature thermal energy with zero emissions.
E-methanol
REintegrate ApS is a Danish Power-to-X company established in 2018 as a spinout from Aalborg University that specializes in producing liquid e-fuels such as e-methanol synthesized from green hydrogen and CO2.
Industry
Futraheat Limited is a low-carbon heat generation company founded in 2016 and headquartered in Surbiton, United Kingdom, pioneering high-temperature heat pump technology.
Home Heating
Harvest Thermal, Inc. is an award-winning developer of thermal energy and heating solutions recognized for climate innovation. The company is headquartered in Berkeley, California.
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