Top 47 Space Satellite startups

Updated: Dec 18, 2025
|
These startups are developing and enhancing space satellites for Earth observation, global communications, climate monitoring, navigation systems, scientific research, etc.
1
ReOrbit
Country: Finland | Funding: €63.9M
ReOrbit creates sovereign communication satellites
2
K2 Space
Country: USA | Funding: $425.5M
K2 Space specializes in building large satellites that serve as platforms for multiple third-party modules. These satellites became possible with the advent of large launch vehicles like the Falcon 9. Their advantage is high reliability and lower launch/servicing costs for each individual module. This is important for commercial, scientific and defense applications. The company's first satellite, K2 Mega (scheduled for launch in 2026), can carry a payload of up to one ton. It' designed for multi-orbit operations, protected from the harshest conditions of the solar system and is engineered with redundancy and reliability techniques historically reserved for crewed spacecraft like Dragon and the Space Shuttle. Its $15 million cost was achieved through the development of new systems, such as power supply, attitude control, thermal management.
3
DPhi Space
Country: Switzerland | Funding: CHF2.3M
DPhi Space is a startup that specializes in shared satellites for hosted payloads to simplify access to space - a better alternative to cubesats.
4
EnduroSat
Country: Bulgaria | Funding: $77.7M
EnduroSat designs and engineers spacecraft for business applications and space exploration missions.
5
Earth-i
Country: UK | Funding: £2.7M
EARTH-i geospatial solutions utilise optical satellite imagery from the DMC3/TripleSat Constellation. The company uses satellite imagery to provide high-resolution images and data that people can use for a wide range of applications, including urban planning, infrastructure development, environmental monitoring, and security and defense. It uses Machine Learning for processing Earth Observation data.
6
SpaceX
Country: USA | Funding: $11.8B
SpaceX is an aviation and aerospace company that operates a network of sattelites and designs, manufactures and launches advanced rockets and spacecraft.
7
OneWeb
Country: UK | Funding: $4.7B
OneWeb is building a space-based communications network that delivers high-speed, low-latency internet access.
8
Inmarsat
Country: UK | Funding: $1.8B
Inmarsat is a mobile satellite communication service provider that aims to power global connectivity services. Acquired by Viasat
9
Astranis
Country: USA | Funding: $753.5M
Astranis is a space startup that builds small and low-cost telecommunications satellites to provide internet access in remote regions.
10
Globalstar
Country: USA | Funding: $652M
Globalstar is a satellite network operator that provides widely-used handheld satellite phone service, offering both voice and data services from virtually anywhere.
Boris Maslennikov
Editor: Boris Maslennikov
Boris Maslennikov is a senior editor for Space-Startups. He has spent more than a decade covering the global space industry as a business journalist. He earned a Ph.D. in planetary sciences from the Massachusetts Institute of Technology and a bachelor’s degree with honors in geophysics and planetary science from the California Institute of Technology. In his free time, Boris enjoys studying history and mathematics, with a particular interest in the history of mathematics. You can contact Boris at borismaslenikov(at)space-startups(dot)com