I used to work at Boeing in Seattle. Most of the people I worked with had gone to state flagships, e.g, Pac-12, Big Ten, Big 12 schools. We had a couple of people from MIT, and one from Cornell. (Back then the Ivy League wasn’t known for engineering and computer science.)
We also had people from smaller schools. A guy who sat near me went to Oregon Tech, another went to Lewis and Clark College in Oregon, one had gone to Trinity in Connecticut, and we had three or four people who had gone to college in North and South Dakota. We also had a guy who had gone to Drexel, but never graduated. This was a department that mostly did computer modeling and simulations, but we only had three or four people with computer science degrees, including me. Most people had math and various types of engineering degrees. The guy who ran my group had a PhD in Fisheries. (Lots of statistics in Fisheries.)
If you wanted to work at Boeing’s South Carolina plant, I’m sure any ACC or SEC school would work.
I’d occasionally go to the Boeing plant in Wichita (since closed,) and most of the people there had gone to Big 12 schools, along with a bunch from Wichita State.