Helping Satellite Developers Deliver Highly-Reliable On-board Software

Providing reliable and secure data handling software.


ECSS and CCSDS compliant software communication stack for small satellites market. Deliver standardized reliable communication faster with less effort.

Learn more Try PUSopen® for free

At the core of our software is simplicity. Our products are small but developed to the industry-recognized standards and best practices. We pride ourselves to do everything reasonably possible to make rock-solid reliable software for your mission.

PUSopen®, the data handling solution based on established space communication standards is ideal communication solution used for trending small satellites market. We focus on customer’s mission requirements and adaptations of existing standards, rather than following status-quo.

12G Flight Systems was founded in 2018 with the prime focus on critical software for aerospace and sector. Our staff has experience from working for large government and space agencies. We apply skills and techniques used by leading companies in safety-critical software development. 


PUSopen 1.1 is released

Dec 23, 2019

Further internal optimizations and qualification documents are now ready to support your mission.

PUSopen® 1.0 released

July 1, 2019

Full release of PUSopen® is now available at our web site. We hope it will serve smallsat community well on its journey. Its improvements will continue based on users feedback. Thank you.

First successful PUSopen® flight test

Feb 11, 2019

Today PUSopen® v1.0 has successfuly passed a major flight testing milestone. PUSopen® stack has been tested on the stratospheric balloon flight with top altitude of 34200 m. Flight was organized with out partners Spacemanic, Needronix and SOSA.

12G at ESA ISD 2018, Noordwijk

Sept 13, 2018

12G has participated at ESA Industry Space Days 2018 in Noordwijk. Our team did a fantastic job presenting PUSopen® communication stack to the participating smallsat community.