The Blue Sun corporation is the richest and most politically-connected entity in the Firefly universe. Blue Sun is on every planet, in every home — rich and not so rich alike. For all its fame, it is one of the most shadowy institutions in the ‘Verse.
The Blue Sun logo is seen everywhere, from t-shirts and food cans to billboards and posters — and even on military and space hardware. They hold a monopoly on packaged foodstuffs, but its subsidiaries and shell corporations have branched out far from food and service industries — branching into computer systems, communication technology, and even spaceship design, along with the biotech industry — and even human experimentation.
Blue Sun’s research and development division is a mysterious place guarded by security equal to top secret Union of Allied Planets military projects.