Presentation application from Hungary. Haven't used it in a while personally, but even 10 years ago it was miles ahead of what Powerpoint could do.
You seem to include Fintach companies but not most big software companies, or hardware companies for that matter. I am wondering what your criteria are for this.
Software: SAP, Misys, Sage... many others - those are just ones that come to mind immediately.
The problem is I think your list is so general that it will become huge.