Fortastra
What Is Fortastra?
Fortastra is a space technology company developing autonomous, maneuverable spacecraft for orbital defense and satellite protection. Its systems are designed to operate near critical space infrastructure, monitor surrounding activity, and support responses to potential threats.
Founded in 2025, the company combines spacecraft manufacturing, propulsion, guidance and navigation, and autonomous sensing software. Its approach focuses on producing compact spacecraft that can be deployed in larger numbers to support persistent monitoring and protection of satellites across different orbital environments.
What Does Fortastra Do?
Fortastra designs, builds, and operates spacecraft intended to protect satellites and other orbital infrastructure. Its vehicles are being developed to maneuver near designated assets, inspect nearby objects, and provide information about potentially threatening activity.
The company’s Watchdog spacecraft program supports the development and testing of autonomous orbital security technologies. Its first two Watchdog V0 prototypes launched in October 2026, establishing initial flight heritage for the program.
Fortastra develops guidance, navigation, and control software for relative navigation and rendezvous and proximity operations. These capabilities allow a spacecraft to determine its position relative to another object and execute controlled maneuvers nearby.
The company is also developing onboard perception systems that interpret sensor information and support spacecraft decisions without continuous human control. Its longer-term development includes modular spacecraft platforms designed for repeatable manufacturing and deployment across multiple orbits.
Fortastra Technology
Fortastra develops maneuverable spacecraft and autonomous orbital security systems designed to operate near satellites and other valuable space infrastructure. Its engineering programs combine spacecraft propulsion, guidance, navigation, control, onboard sensing, and autonomous decision-making.
A central capability is rendezvous and proximity operations, or RPO. These maneuvers require a spacecraft to estimate the relative position, velocity, and trajectory of another object while maintaining controlled separation. Fortastra is developing the flight software and navigation systems needed to approach, observe, and maneuver around objects in orbit.
The company’s autonomous perception technology is intended to interpret onboard sensor data and identify relevant activity near protected spacecraft. Its open-architecture software approach is designed to support sensing, maneuver planning, coordination, and selected responses when continuous ground-based control is impractical.
Fortastra is also developing modular spacecraft buses optimized for lower-cost production. Its manufacturing strategy combines commercially available components with internally developed engineering and software. The company has announced a manufacturing collaboration with Hadrian involving precision machining and additive manufacturing.
Its first two Watchdog V0 prototypes reached orbit in October 2026. The spacecraft provide an initial test environment for Fortastra’s orbital security technologies, although the company has not publicly disclosed complete technical results for its planned autonomous proximity operations.
Future development focuses on higher-capability spacecraft, improved relative navigation, and scalable production. The company’s longer-term concept involves deploying multiple spacecraft to provide persistent security coverage rather than relying on a small number of specialized orbital platforms.
Why Fortastra Matters
Satellites support communications, navigation, intelligence, and other services that depend on reliable orbital infrastructure. As more spacecraft enter orbit, operators face growing concerns about interference, unexpected approaches, and deliberate disruption.
Fortastra is developing spacecraft capable of operating close to protected assets, extending orbital security beyond observation and ground-based monitoring.
Its emphasis on autonomous perception and proximity operations reflects the need for spacecraft that can assess nearby activity without waiting for every decision to be made by ground controllers.
The company’s manufacturing strategy also addresses the potential need for larger numbers of lower-cost orbital security spacecraft as satellite constellations expand.
Fortastra’s first orbital deployment demonstrates progress beyond ground testing, although its broader defensive capabilities and proposed multi-orbit coverage remain under development.
Fortastra Products & Platforms
Watchdog V0
Watchdog V0 is Fortastra’s first orbital spacecraft prototype program. Two spacecraft launched aboard SpaceX’s Transporter-18 mission in October 2026. The mission provides an orbital environment for testing technologies related to maneuverable spacecraft and proximity operations. Fortastra has not disclosed all mission capabilities or published complete results demonstrating autonomous satellite defense.
Next-Generation Watchdog Spacecraft
Fortastra is developing larger and more capable spacecraft following its initial Watchdog V0 deployment. These prototypes are intended to advance relative navigation, onboard perception, autonomous maneuvering, and orbital security operations. Development is supported by the company’s October 2026 Series A financing. Operational performance and deployment schedules remain subject to engineering and flight testing.
Modular Spacecraft Bus
Fortastra is developing a modular spacecraft architecture designed for repeatable, high-rate manufacturing. The bus is intended to combine commercially available hardware with mission-specific propulsion, avionics, sensing, and flight software. Its development focuses on reducing production complexity while supporting spacecraft designed for orbital monitoring and security missions.
Autonomous Perception and Flight Software
Fortastra is developing software for interpreting onboard sensor information, estimating relative spacecraft motion, and supporting autonomous maneuver decisions. The technology combines perception, guidance, navigation, and control to enable spacecraft to observe nearby objects and maintain controlled separation. These capabilities remain part of the company’s evolving spacecraft systems rather than a separately announced commercial software product.
Fortastra Applications
Orbital Infrastructure Protection: Developing spacecraft intended to monitor and protect satellites and other critical assets in orbit.
Space Domain Awareness: Collecting close-range observations that can help characterize nearby spacecraft and unexpected orbital activity.
Rendezvous and Proximity Operations: Developing navigation and maneuvering systems for controlled operations near other objects in space.
Satellite Inspection: Investigating close-range observation capabilities for assessing spacecraft conditions and identifying potential anomalies.
Autonomous Space Operations: Developing onboard software to support sensing and maneuver decisions when continuous ground control is impractical.
National Security Space Missions: Supporting development of maneuverable spacecraft for defense-related orbital monitoring and security requirements.
Commercial Satellite Security: Exploring future protection services for commercial spacecraft and orbital infrastructure.
Distributed Orbital Security: Developing manufacturing and mission architectures intended to support larger numbers of spacecraft across multiple orbits.
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Frequently Asked Questions
What does Fortastra do?
Fortastra develops maneuverable spacecraft and autonomous technologies for monitoring and protecting satellites and other infrastructure in orbit.
When was Fortastra founded?
Fortastra was founded in 2025 and is headquartered in Torrance, California.
What is Fortastra’s Watchdog V0?
Watchdog V0 is Fortastra’s initial orbital spacecraft prototype program. Two spacecraft launched in October 2026 to support the development and testing of orbital security technologies.
Has Fortastra launched satellites into space?
Yes. Fortastra launched two Watchdog V0 spacecraft aboard SpaceX’s Transporter-18 mission in October 2026. The company has not publicly disclosed complete results for all planned autonomous defense capabilities.
What are rendezvous and proximity operations?
Rendezvous and proximity operations involve maneuvering a spacecraft near another object while controlling relative position, velocity, and separation. These techniques support inspection, servicing, and other close-range orbital missions.
Does Fortastra use artificial intelligence?
Fortastra develops autonomous perception and decision-support software for spacecraft operations. These systems are intended to interpret sensor information and support navigation and maneuvering with reduced dependence on continuous human control.
How much funding has Fortastra raised?
Fortastra disclosed more than $8 million in seed financing in December 2025 and announced a $30 million Series A round in October 2026, bringing its publicly reported funding to more than $38 million.
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