Propellant RefillingPropellant refueling and reloading stations

Aims to build an in-space transportation network, using reusable spacecraft propelled by water harvested from the moon.

Astroscale offers operators and launchers choices and flexibility across the spectrum of on-orbit servicing, while creating a sustainable foundation for the growth of the space economy in the process.

Atomos Space is building the future of orbital logistics, providing “last mile” transportation services for satellite operators. Our orbital transfer vehicles (OTVs) change the rocket equation – enabling impossible missions, providing unprecedented maneuverability, maintaining a sustainable orbital environment, and reducing the cost for satellite operators to get to their place in space.

Eta Space is developing propellant depots for orbital and lunar polar locations, with sizing for a variety of mission architectures. 

If you believe in a coming space economy, the greatest commercial opportunity is in-space propellant refueling. Our vision is to build a planetary sunshade to protect Earth.

Rocket engine design and manufacturing company. Developing a variant of rocket engine codenamed ICEALOX that can make use of lunar natural resources for refueling on the lunar surface, in cis-lunar space, or in Earth orbit.

The Galactic Harbour is the unification of Transportation and Enterprise, a transportation infrastructure delivering cargo to space; routinely and inexpensively

Galactiv is an in-space services company with the primary mission of ensuring that humanity maintains a sustainable long-term presence in outer space. In the near-term, we will be addressing the pollution created by the American commercial satellite industry by providing emergency servicing and salvage operations to current satellite operators.

The Antaios platform is a refueling depot being developed by Gateway Galactic, Inc. for orbital applications.

Beijing Infinity Aerospace Technology Co. , Ltd. is dedicated to accelerating the commercialization of on-orbit services for commercial spaceflight in China.

Kosmok is on a mission to create cutting-edge satellite technologies that support a sustainable space ecosystem. Their goal is to develop an open in-space refueling interface, empowering satellite providers to equip their satellites for future refueling capabilities. With plans to establish an in-orbit fuel delivery network, extending the operational lifespan and mobility of space systems, KOSMOK is shaping the future of space mobility.

SpaceLogistics, a wholly owned subsidiary of Northrop Grumman, provides cooperative space logistics and in-orbit satellite servicing to geosynchronous satellite operators using its fleet of commercial servicing vehicles—the Mission Extension Vehicle, the Mission Robotic Vehicle and the Mission Extension Pods.

We are building the in-space propellant supply chain - gas stations in space. Our ubiquitous supply of spacecraft propellant in LEO, GEO, and cis-lunar space shifts the paradigm of satellite design towards reusability, improves existing space business models like communications and Earth observation, and opens new industries like space tourism, manufacturing, and mining. 

Orbit2Orbit is building the infrastructure that makes space stations and science missions more connected, reliable, and repeatable, by tackling one of the biggest unsolved challenges: how we move, dock, service, and scale activity in orbit.

OrbitAID seeks to be first India's indigenous company in the emerging field of On-orbit servicing (OOS).  OrbitAID is developing in-orbit refueling for satellite life extension and plans to build a Fuel Station in Space.

The Orbital Mining Corporation (OMC) is a Space Startup dedicated to lunar power and mining. Orbital Mining Corporation aims to provide power and propellant on the Lunar surface.

Regolithix is developing technologies to enable in-space manufacturing, re-fuelling, and habitation.

Spaceium is building service stations along the space superhighway. The service stations are modular to provide services from refueling, transferring energy, storing and exchanging hardware, and going to be part of trash debris solution.

SpaceRyde is building a network of rockets to provide on-demand cargo transportation in space.

Thales Alenia Space is developing Start, a fleet of in-orbit service vehicles.

TransAstra is developing game-changing technologies in the areas of orbital logistics and space resources to enable massive growth to existing and entirely new space industries.

Zero-G Horizons Technologies (ZGHT), in partnership with Embry-Riddle Aeronautical University (ERAU) is developing a Spacecraft On-Orbit Advanced Refueling and Storage (SOARS) system.