Top 6 In-Space Refueling startups

Mar 05, 2025 | By Boris Maslennikov

These startups are operating in-space drone fleet that enable to refuel and recharge satellites and spacecrafts while in orbit.
1
Country: USA | Funding: $43.8M
Orbit Fab is a supplier of tankers and other infrastructure needed for in-space refueling of satellites.
2
Country: Canada | Funding: $6.8M
Spaceium develops a spacecraft docking system to support interplanetary missions.
3
Country: USA | Funding: $9.9M
Argo Space develops small reusable spacecraft transfer vehicles and the technology for harvesting water from lunar regolith to create an abundant source of in-space propellant
4
Country: Japan | Funding: $396.8M
Astroscale is developing scalable solutions across the spectrum of on-orbit servicing, including life extension, in situ space situational awareness, end-of-life, and active debris removal, to create sustainable space systems
5
Country: India | Funding: $525K
OrbitAID Aerospace is developing satellite life extension solutions enabling longer mission duration, reduced space debris generation.
6
Country: USA | Funding: $197.9K
Eta Space provides cryogenic solutions for space and earth.
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