IBM?
Wot no mention of IBM and their exorbitant licensing models, also with extremely high maintenance fees... They're a bit more tricky to remove due to execs thinking they're the best when their software seldom works let alone as advertised.
They also factor in massive consultancy fees, for which you could buy a small company, let alone a flaky product that doesn't work...
Anon as I have to deal with them a lot and rip into their products & charges...