Millisoft
They're a order of magnitude or three bigger since they pinched DR-DOS but you still need a magnifying glass to see their contribution to general purpose computing, unless it's the interminable wait for "Windows Updates" (Evergreen needs to die in a fire) and then the downtime in man-hours can probably be seen from space. Most of their "innovations," including that of the current business model of "data data everywhere" have been begged, borrowed or outright stolen from other innovators. There's a thought: The Borg. Your stuff will be assimilated.
It is often quipped that should Microsoft ever make a vacuum cleaner it would be the only thing that didn't suck. This is probably a bit unfair; their hardware is generally, excluding the RROD X Boxen, quite good quality, especially their input peripherals. Not a patch on a decent Cherry brown or Model M, of course...