Space missions are constrained by fixed onboard propellant and limited in-orbit servicing capability.

Once fuel margins are depleted, otherwise functional spacecraft must reduce maneuvering or retire entirely. This drives conservative mission design, underutilized payload mass, shortened operational lifetimes, and costly full-system replacement cycles. In practice, spacecraft are discarded for fuel exhaustion rather than system failure.

As operations expand beyond LEO toward GEO and cislunar space, this constraint becomes more severe. Higher delta-v requirements, longer mission durations, and increased communication latency reduce the feasibility of tightly ground-controlled servicing. At the same time, defense and commercial operators require sustained maneuverability for resilience, repositioning, inspection, and proximity operations.

Existing refueling efforts focus on bespoke, mission-specific servicing vehicles rather than standardized, repeatable logistics infrastructure. There is no persistent, operational-scale propellant layer in orbit analogous to terrestrial fueling networks.

Spargo addresses this structural gap: the absence of scalable, infrastructure-grade in-space refueling and autonomous logistics systems capable of extending spacecraft lifetime and enabling sustained maneuver operations across commercial, civil, and defense markets.

Spargo Space was founded in January 2025 and is venture backed, with additional non-dilutive grant support.

We are actively participating in both U.S. and European space accelerator programs and are engaged with government and commercial stakeholders focused on in-space logistics and refueling requirements.

On the technical side, we have:
* Advanced ground testing of cryogenic docking and sealing architectures.
* Integrated autonomy software into flight-representative GN&C frameworks.
* Planned an ISS-based software demonstration to validate autonomous docking under degraded sensing conditions.
* Established partnerships with experienced cryogenic hardware and space systems providers to accelerate depot development.

The company is positioned at the intersection of emerging refueling requirements from defense and exploration programs and the growing commercial demand for sustained maneuverability in LEO, GEO, and cislunar space.