MegaCorps

A MegaCorp is a Corporation that has such large market share that it does business in multiple systems and multiple polities. A Corp that wholly did business within the Star Republic of Dixie, for example, wouldn't qualify, but once they set up offices and did business nearby in the United Systems of Texas, they would be.

MegaCorps can provide all manner of goods and services, from starship parts to sprawling property management companies that own whole continents' worth of skyscrapers across a dozen worlds.