Refueling Companies

deltaVision designs and manufactures the fluidic control systems inside spacecraft propulsion — valves, pumps and couplers — which the company likens to a cardiovascular system for a satellite. Its longer-term goal is a modular, interoperable stack for in-orbit refuelling, where standardised couplers matter as much as the propulsion itself, since a servicer and its client must physically mate before any propellant moves. The company was founded in 2022 by Plebuch, Dr Denis Kiefel and Matthias Günther, employs around 134 people, and reports having been profitable since inception with flight heritage since 2025 — an unusual profile in a sector where component suppliers typically burn capital for years. In July 2026 deltaVision raised a €10.2 million seed round led by KT Ventures and Valemount Capital, both converting earlier commitments, with Futury Capital participating. The proceeds fund scaling valve and propulsion component output toward 5,000 units a year, with a first integrated refuelling payload targeted for orbit in March 2027.

Orbit Fab

Lafayette, United States commercial

Orbit Fab is building the in-space refueling infrastructure to extend satellite operational life, advertising itself as "gas stations in space." The Colorado-based company develops fuel depots, refueling shuttles, and standardized fuel ports enabling satellites to receive propellant on orbit. The Rapidly Attachable Fuel Transfer Interface (RAFTI) completed flight qualification in 2024 and is commercially available at $30,000 per unit. Orbit Fab shipped its first 12 RAFTI ports to customers, including eight for the Space Force and four for commercial customers including Astroscale. The interface allows satellites to receive propellant either in space or on the ground before launch. In January 2024, Orbit Fab announced partnership with ClearSpace for in-space refueling services. The company will deliver fuel to Space Force satellites beginning in 2025, with U.S. government contracts totaling $21 million for refueling and orbital depot development. Orbit Fab was accepted to the Luxembourg Space Resources Accelerator in December 2024. Orbit Fab offers hydrazine refueling services in GEO starting 2025, with 100 kg deliveries priced at $20 million. A commercial agreement with Astroscale will refuel the LEXI life extension servicer fleet with up to 1,000 kg of xenon propellant. The company's architecture includes fuel tankers serving as orbital depots and refueling shuttles delivering propellant to customer satellites. Orbit Fab continues building infrastructure for a sustainable in-space economy.

Galactiv

United States commercial

Galactiv is a United States in-space services company developing the Active Space Servicer, a spacecraft designed to capture and service satellites in geosynchronous orbit without interrupting their operation. Planned services include refuelling, repair and relocation of client satellites, plus removal of defunct hardware from the crowded GEO belt. The vehicle is designed for multiple missions across its lifetime: refuelling capability makes the system reusable, while a modular bus is intended to make the servicer itself repairable. Capture robotics allow it to grapple target satellites that were never designed with servicing interfaces, which is the central technical difficulty in the on-orbit servicing market. The company's stated ambition is to field a fleet of Active Space Servicers sized to cover the Americas and meet responsiveness targets for customers whose satellites need urgent intervention. It positions the same fleet as a commercial answer to GEO debris.

Orbit2Orbit is a Gold Coast, Queensland startup developing what it describes as the first dedicated orbital logistics network — reusable, modular and refuellable vehicles intended to move cargo, equipment and resources between space stations and other orbital assets. The company's stated aim is to make docking, servicing and resupply in orbit a repeatable service rather than a bespoke mission. The company was founded by chief executive Bradley Hatton-Jones, previously a manufacturing engineer at Gilmour Space Technologies working on the Eris orbital launch vehicle. Orbit2Orbit runs a Pathfinder program designed to reduce technical risk, cost and time to flight by letting payloads be developed once and matured incrementally, and has secured two Pathfinder missions scheduled for 2026. A separate Lab2Space activity offers microgravity research flights through international launch partnerships. Orbit2Orbit won an Australian Technology Competition award in June 2025 and raised a A$1.1 million bridge round in October 2025, reporting further letters of intent from Australian research and industry partners. In July 2026, Credissential Inc. announced a proposed acquisition of Orbit2Orbit Pty Ltd. The company has assembled a group of Australian suppliers spanning propulsion, robotics, power systems and advanced materials.

OrbitAID Aerospace

Bengaluru, India commercial

OrbitAID Aerospace, headquartered in Bengaluru, India and founded in 2021, is India's first on-orbit satellite servicing and refueling startup — developing autonomous docking interfaces, refueling systems, and robotic servicing capabilities for satellite life extension, targeting the growing commercial and government satellite operator market that seeks to extend the operational life of GEO and LEO satellites beyond their original design propellant lifetimes rather than decommissioning and replacing them at enormous cost. OrbitAID's core technology is the SIDRP (Satellite Interface for Docking, Refueling, and Propulsion) — a standardized docking and propellant transfer interface designed to be retrofittable to existing satellites and built into new satellite designs. The standardization approach is critical: for satellite servicing to scale as a commercial business, servicer vehicles need to be able to dock with satellites from multiple manufacturers and operators without requiring each satellite to have a custom-designed interface, just as standardized fuel nozzles enable tanker aircraft to refuel any compatible military aircraft. SIDRP addresses the propellant transfer challenge for high-efficiency electric propulsion satellites (which use xenon, krypton, or iodine as propellant) and conventional bipropellant satellites. OrbitAID operates a 6,500 square foot research and development facility in Bengaluru and has raised $2.04 million in early funding including a $1.5 million seed round in 2025 — small capital deployment for the development phase of deep space rendezvous technology, consistent with the early R&D and concept validation stage the company is in. The Bengaluru location places OrbitAID at the center of India's commercial space ecosystem, adjacent to ISRO's U.R. Rao Satellite Centre (URSC), the Indian Space Association (ISpA) member companies, and the growing IN-SPACe-regulated private space sector. OrbitAID competes with Northrop Grumman's MEV (Mission Extension Vehicle) — which has demonstrated commercial GEO satellite life extension — Astroscale, and U.S. startups Orbit Fab and Starfish Space as the on-orbit servicing market develops.