Olympus is a Sol centered corporation that negotiates for resources to be acquired and brought back to Sol system.
They also maintain a standing fleet and armed force with which they patrol and protect resources and systems close to Sol. Earth is relatively far from the rest of the major races that humanity has contacted so this military force is mostly for dealing with hostile inhabitants of systems or human raiders. There are few with large military operations experience with this organization.
They also own and operate most of the long range shipping between Sol and the major hubs of the galactic arm. They do not monopolize this industry however they do hold the majority of contracts totaling around 67% of annual traffic with Sol as it’s destination.
There are rumors surrounding Olypmus for acquiring rare or unique items to be brought back to earth, such as unique technologies, rare minerals, and exotic xenos animal species.