12G Flight Systems

12G Flight Systems Sweden AB is a Swedish space software and consulting company providing the PUSopen® C library — a space-heritage software implementation of the CCSDS and ECSS PUS (Packet Utilisation Standard) communication protocols for spacecraft onboard systems. The company's services include technical writing and documentation, systems and software engineering consulting, quality assurance and process improvement, and training workshops on CCSDS/PUS and NASA spacecraft communication standards. 12G Flight Systems serves European satellite manufacturers, space agencies, and system integrators requiring compliant, reliable onboard communication software and specialised aerospace documentation and quality engineering expertise.