Basically, a quick over view of what I am thinking of and am writing up so far

Co-founded towards the end of the Clones Wars, it originally struggled to stay afloat as it couldn't enter the market (It started as a weapons manufacturer) After the Galactic Empire came to power, they received several assets like many loyalist businesses did, allowing them to stay afloat as a small business. After the Gentis Coup and the subsequent Chaos, all that changed. Suddenly weapons were in higher demand, and their profits sky rocketed as a result, allowing them to expand
It now owns several subsidiaries, offering it's services as a Droid (Mostly Battle droids) and Weapon manufacturer, Ship Manufacturer and 'Private Security Services'.
It's main sources of Income are the Droid, Weapons and Ship Manufacturing, essentially profiting off the Chaos plaguing the Galaxy, and with a vested interested in this Chaos continuing as such.
It's Private Security Services do offer legitimate Security, but really it's their force for filling a role that falls between Private Army and Mob Muscle, coercing rivals into selling out to the corporation. It is basically split into three sections. The section responsible for essentially acting like thugs and intimidating rivals, the legitimate private security section responsible for handling security contracts (Ironically the smallest section) and a more military like section containing droids that they have manufactured as well as sentient beings, which serve as a sort of private army
After many years of profiteering off the war, they grew large and rich, and as a result powerful
It used it's security forces to start a coup on Telos IV, pushing aside the meager resistance and installing a puppet government, and brought out large amounts of Bonadan, working with other members of the Corporate Sector Authority to essentially gain a monopoly on the world, with the majority of it now being owned by them and two other large Corporations.