The agreement will help ABL and Lockheed Martin accelerate the development and deployment of next-generation space systems over the next decade.
The companies signed a strategic interest agreement for the joint development of 5G mobile broadband capability from space.
The agreement comes after the companies worked together to evaluate the effectiveness of SIAT for early production testing and operational scenarios.
The new digital payloads passed a critical design review in February 2020.
The UK Pathfinder launch by Lockheed Martin from the Shetland Space Center in 2022 will use an RS1 rocket from ABL Space Systems.
SBIRS GEO-5 is the first military space satellite built on Lockheed Martin's modernised, modular LM 2100 combat bus.
The prototype uses a ‘building block’ approach that can easily scale as the number of satellites increases or as the communication needs evolve.