Well, in the big picture of things, they're pretty benign. IBM, for example, helped bolster the Nazis before WW2.. yet this is rarely mentioned. They even helped build the database (primitive/pre digital machines) that helped them catalogue the disabled and eventually the Jews. While AT&T also built the Nazi communications infrastructure. This goes without mentioned their decades long monopolistic practices. These two companies' bad reputation was definitely deserved.
And I've said this elsewhere, but MS isn't a bad game publisher either. They create a better environment for developers than the likes of EA or something.