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Top 17 Space Energy startups
Apr 03, 2025 | By Alexander Gillet | 15 |
These startups develop new technologies to generate and store energy on space stations and spacecrafts, transmit solar energy from space to Earth and deliver other energy resources from space.
1
Country: USA | Funding: $249.6M
Astrobotic Technology creates first-ever commercial power service for the lunar surface. It will enable space agencies, companies, and nonprofit systems to survive the lunar night and operate indefinitely on the Moon.
Astrobotic Technology creates first-ever commercial power service for the lunar surface. It will enable space agencies, companies, and nonprofit systems to survive the lunar night and operate indefinitely on the Moon.
2
Country: USA | Funding: $100M
Redwire focuses on space commercialization, digitally engineered spacecraft, on-orbit service, assembly, and manufacturing.
Redwire focuses on space commercialization, digitally engineered spacecraft, on-orbit service, assembly, and manufacturing.
3
Country: USA | Funding: $51.6M
Avalanche Energy is a fusion energy startup that develops micro-fusion reactors that can be used in space.
Avalanche Energy is a fusion energy startup that develops micro-fusion reactors that can be used in space.
4
Country: USA | Funding: $50M
Aetherflux develops a novel technology that uses many small satellites transmitting sun energy through infrared lasers to Earth
Aetherflux develops a novel technology that uses many small satellites transmitting sun energy through infrared lasers to Earth
5
Country: USA | Funding: $30M
Antares is designing and building fission microreactors for strategic energy applications, including space-based nuclear power and propulsion and energy resilience for mission-critical facilities.
Antares is designing and building fission microreactors for strategic energy applications, including space-based nuclear power and propulsion and energy resilience for mission-critical facilities.
6
Country: USA | Funding: $13.1M
Solestial is aiming to fill the rising demand for solar panels that can withstand the harsh conditions in space while also providing a less costly alternative to the “extravagantly expensive” photovoltaic technology
Solestial is aiming to fill the rising demand for solar panels that can withstand the harsh conditions in space while also providing a less costly alternative to the “extravagantly expensive” photovoltaic technology
7
Country: Japan | Funding: ¥1.9B
EX-Fusion develops the first commercial laser based nuclear fusion reactor for power generation.
EX-Fusion develops the first commercial laser based nuclear fusion reactor for power generation.
8
Country: USA | Funding: $12.3M
Star Catcher creates first energy grid for space.
Star Catcher creates first energy grid for space.
9
Country: USA | Funding: $8.7M
Reflect Orbital is building reflectors in space to shine sunlight on solar panels at night.
Reflect Orbital is building reflectors in space to shine sunlight on solar panels at night.
10
Country: New Zealand | Funding: NZ$10.5M
Zenno is the pioneer and global leader of superconducting magnets for space applications, revolutionizing space-movement through the untapped energy of super magnets. Zenno's hardware and software products ensure satellite missions are effectively managed, guaranteeing maximum economic returns.
Zenno is the pioneer and global leader of superconducting magnets for space applications, revolutionizing space-movement through the untapped energy of super magnets. Zenno's hardware and software products ensure satellite missions are effectively managed, guaranteeing maximum economic returns.
See also:
Top 10 Space Startups
Top 10 Space Startups
11
Country: USA | Funding: $2.3M
Above is developing technology to provide energy for on-orbit servicing, assembly and manufacturing
Above is developing technology to provide energy for on-orbit servicing, assembly and manufacturing
12
Country: USA | Funding: $250K
Virtus Solis has designed the world's first space-based solar power energy generation system able to directly compete with all forms of energy.
Virtus Solis has designed the world's first space-based solar power energy generation system able to directly compete with all forms of energy.
13
Country: Italy
SunCubes is an innovative startup which goal is to build the future space energy infrastructure through its innovative satellites' recharging system.
SunCubes is an innovative startup which goal is to build the future space energy infrastructure through its innovative satellites' recharging system.
14
Country: UK
Space Solar will develop and commercialise Space-Based Solar Power, an affordable, scalable clean energy technology. We will help the UK and partner nations transition sustainably to Net Zero, delivering energy security and improving the quality of life for people around the world.
Space Solar will develop and commercialise Space-Based Solar Power, an affordable, scalable clean energy technology. We will help the UK and partner nations transition sustainably to Net Zero, delivering energy security and improving the quality of life for people around the world.
15
Country: Netherlands
Sparkwing is our off-the-shelf solar array answer for the small satellite market. Sparkwing offers a high value for money, short lead time, easy to integrate solar array from an experienced team and a reliable supply chain.
Sparkwing is our off-the-shelf solar array answer for the small satellite market. Sparkwing offers a high value for money, short lead time, easy to integrate solar array from an experienced team and a reliable supply chain.
16
Country: New Zealand
Emrod uses tele-energy technology to transmit energy wirelessly over many kilometres or miles.
Emrod uses tele-energy technology to transmit energy wirelessly over many kilometres or miles.
17
Country: Canada
Volta has built the LightGrid - an orbital architecture transferring power wirelessly to assets on the lunar surface.
Volta has built the LightGrid - an orbital architecture transferring power wirelessly to assets on the lunar surface.
