Orbit Fab

Orbit Fab provides commercial spacecraft refueling, marketed as "Gas Stations in Space." The company operates fuel shuttles intended to deliver propellant directly to spacecraft equipped with its RAFTI refueling interface, with the stated ability to serve any orbit and any spacecraft through cooperative docking.

Alongside the fuel delivery service, Orbit Fab supplies the RAFTI hardware that makes a customer spacecraft refuelable, and UMPIRE, mission-planning software that optimizes refueling logistics against a customer's mission goals. The company states that it builds flight-proven hardware and is creating the first commercial spacecraft refueling service.

Business model

Orbit Fab combines hardware sales/integration (the RAFTI refueling interface fitted to customer spacecraft) with a delivered-propellant service, plus mission planning software (UMPIRE) that supports the refueling offering.

Propellant is sold as a priced delivered service: the company lists hydrazine delivery in geostationary orbit at $20 million for 100 kg, available in 2025.

Traction

The company cites five U.S. and international government programs and more than 100 commercial spacecraft. Named engagements include a DIU RAPIDS contract to refuel U.S. Space Force satellites in 2025, equipping ClearSpace debris removal satellites with refueling capability under the UK Space Agency active debris removal program, and an agreement described as the first commercial in-space fuel sale, to refuel Astroscale's LEXI servicers with up to 1,000 kg of xenon in geostationary orbit.