"Was"? IBM headquarters are in a Armonk, NY, the nearby population centers are some 4000 and 12000 strong. Back when IBM was making Linux moves, I remember they were hiring in Poughkeepsie, a city of 32000. And Red Hat the linux vendor bought by IBM is headquartered in Raleigh, NC which a city of only half a million people.
https://en.wikipedia.org/wiki/List_of_the_largest_software_c...