Spaceium

Spaceium, founded in 2023 and based in San Francisco, is a nascent space company focused on developing orbital refueling infrastructure. The company positions itself as a provider of “service stations” for in-space operations, concentrating on the propellant-depot and broader in-space services categories. This indicates a core business centered around extending the operational lifespan and capabilities of satellites and spacecraft through on-orbit refueling.

Currently a Y Combinator S23 company, Spaceium’s key technology appears to revolve around the development and deployment of infrastructure capable of storing and transferring propellant in orbit. While specific technical details are not publicly available, this capability is crucial for enabling more complex and sustainable space missions, reducing the cost of access to space, and facilitating long-duration exploration.

As a very new entrant to the market, Spaceium has not yet publicly announced specific missions or customers. However, the company’s focus on orbital refueling directly addresses a growing need within the satellite servicing, space logistics, and future space exploration sectors.

Spaceium’s unique value proposition lies in its ambition to establish a critical piece of in-space infrastructure. By providing on-orbit refueling capabilities, the company aims to unlock new possibilities for satellite operators, reduce reliance on costly launches, and contribute to a more sustainable and economically viable space ecosystem.