The Problem Orbit Fab Addresses

Traditionally, satellites launch with a fixed amount of propellant. Once that propellant is depleted, the satellite can no longer maintain its orbit, adjust its position, or perform station-keeping maneuvers, effectively ending its operational life even if all other systems remain fully functional. This limitation forces operators to either retire expensive, otherwise-healthy assets or plan missions around fuel constraints rather than mission needs.

Orbit Fab seeks to break this paradigm by establishing a refueling ecosystem in orbit. By enabling satellites to top up their fuel reserves while in space, the company aims to dramatically extend satellite lifespans, enable more dynamic and maneuverable operations, and reduce the amount of orbital debris created by defunct spacecraft. This capability has significant implications for both commercial satellite operators and government and defense customers.

Core Products and Services

RAFTI (Rapidly Attachable Fluid Transfer Interface)

One of Orbit Fab's flagship products is RAFTI, the Rapidly Attachable Fluid Transfer Interface. RAFTI is a standardized refueling port designed to be installed on satellites and spacecraft before launch. It functions much like a universal fuel valve, allowing spacecraft to receive propellant transfers in orbit through a standardized, interoperable connection.

RAFTI is engineered to serve as an industry-wide standard interface, meaning that any spacecraft equipped with a RAFTI port can potentially be serviced by any compatible refueling vehicle or depot. This standardization is central to Orbit Fab's vision of a scalable, interoperable refueling infrastructure. The interface is designed to replace or supplement traditional fill-and-drain valves used during ground fueling operations, offering both ground servicing and on-orbit refueling functionality in a single component.

Fuel Depots and Propellant Tankers

Orbit Fab is developing orbital fuel depots and tankers that store and dispense propellant to client satellites. These depots act as the "gas stations" in the company's vision, positioned in strategic orbits to service spacecraft that require refueling. The tankers and depots are designed to hold propellant and transfer it to customer satellites equipped with compatible interfaces.

The company has worked on delivering propellant to various orbital regimes, including geostationary orbit (GEO), which is home to many high-value communications and defense satellites that would benefit significantly from life-extension services.

Propellant Supply and Delivery Services

Beyond hardware, Orbit Fab offers propellant as a service. The company's business model includes the sale and delivery of fuel to satellites in orbit, effectively creating a supply chain for propellant in space. This service model allows satellite operators to purchase fuel on-orbit rather than being limited to the propellant loaded at launch.

Orbit Fab has notably advertised specific pricing for its propellant delivery services, publicizing a price for hydrazine delivered to geostationary orbit as a way to establish market transparency and demonstrate the commercial viability of in-space refueling.

Technology Development and Testing

Orbit Fab has a strong track record of technology demonstration. The company achieved an early milestone by testing its refueling technology aboard the International Space Station (ISS), where it demonstrated the transfer of fluids in a microgravity environment. This work helped validate the fundamental mechanics of transferring propellant in space, a technically challenging task involving fluid dynamics under weightless conditions.

The company has also launched hardware into orbit to test and demonstrate its systems, including tanker and interface technology. These demonstrations serve to build customer confidence and prove out the reliability of Orbit Fab's refueling architecture.

Customers and Markets

Orbit Fab serves a range of customers across the space industry, including:

• Commercial satellite operators seeking to extend the operational life of their assets and increase mission flexibility.
• Government and defense agencies, including entities within the United States military and space enterprise, that require maneuverable and long-lived space assets for national security purposes.
• Spacecraft manufacturers who integrate RAFTI interfaces into their satellite designs to make their products refuel-ready.
• Companies in the broader on-orbit servicing, assembly, and manufacturing (OSAM) ecosystem that require propellant logistics to support their operations.

The defense sector has been a particularly important market for Orbit Fab, as the ability to refuel and reposition satellites offers strategic advantages in terms of resilience, maneuverability, and operational longevity for national security space assets.

Strategic Vision

Orbit Fab's long-term vision extends beyond simply refueling individual satellites. The company aims to build the foundational infrastructure for a thriving in-space economy. By providing the equivalent of fuel logistics on the ground, Orbit Fab hopes to enable a new generation of space activities, including satellite servicing, orbital transfer operations, in-space manufacturing, and eventually deep-space exploration supported by orbital propellant supply chains.

The emphasis on standardization through the RAFTI interface reflects the company's understanding that a truly scalable in-space economy requires interoperability. By encouraging the adoption of a common refueling standard across the industry, Orbit Fab positions itself as an enabler of an entire ecosystem rather than merely a single service provider.

Industry Significance

Orbit Fab operates in one of the most forward-looking segments of the space industry. As the number of satellites in orbit continues to grow rapidly, the challenges of sustainability, debris mitigation, and asset longevity become increasingly pressing. In-space refueling represents a potential solution to several of these challenges simultaneously, allowing operators to make the most of their orbital investments while reducing the accumulation of defunct spacecraft.

By developing both the hardware interfaces and the propellant delivery infrastructure, Orbit Fab has taken a comprehensive approach to solving the fuel constraint problem. The company's work contributes to a broader movement within the aerospace sector toward reusability, servicing, and sustainability in space operations.

Summary

Orbit Fab is a U.S.-based space technology company focused on building the infrastructure for in-space refueling. Through its RAFTI standardized refueling interface, orbital fuel depots and tankers, and propellant delivery services, the company aims to extend satellite lifespans, enhance operational flexibility, and lay the groundwork for a sustainable in-space economy. With demonstrated technology, including tests aboard the International Space Station, and a customer base spanning commercial and defense sectors, Orbit Fab has established itself as a pioneering force in the emerging market for satellite servicing and space logistics.