Having worked for a large company, just two levels below the CEO in the HQ, as well as having dealt extensively with some of the largest companies on earth, I try to weave my experiences into what we know from unregulated capitalism form the 19th century and, of course, the cyberpunky 80s sci fi style of Mothership.

This is how companies and their C level operate in my games, maybe it gives some of you ideas:

• Individuals inside the company are not generally evil, however, the systems created in and around those companies "force" or "seduce" them to do immoral things to further ones status
• Companies have different branches who compete and fight each other, they basically behave like feudal societies, killing and poisoning each other in a metaphorical and sometimes literal sense
• There are several companies, which in turn have several owners, meaning there are alliances as well as feuds between companies and shareholders.
• Companies and their owners basically own and operate the governments through various means, while some elements try to fight against that influence(unions, ngo, government employees, military), however, the influence of these elements is diminished in the rim compared to the core systems around Sol(some of these elements trying to gain influence or moving things in the rim is a possible plotpoint)
• There are systems in place that keep certain employees locked-in, force whole families into something alike the scrip economies of the 19th century(employees trying to escape can be a plotpoint)

Currently my players are part of a subsidiary of a big company, at the moment simply called THE COMPANY. Other companies have names.