Yes. There was an article in the Chicago Tribune entitled Spy vs. Spy. It's since been 404'd, Here's an exerpt: “Global intelligence computer databases deep inside Central Intelligence Agency headquarters here are named Doc, Dopey, Grumpy, Sleepy, Happy, Bashful and Sneezy? Yes, the CIA has indeed named its huge computers after the Seven Dwarfs — and for all I know has a slinky blond in its cloak-and-dagger Directorate of Operations code-named Snow White.”

Another...

"A group of manufacturers was often referred to as "Snow White and the Seven Dwarfs". Snow White was IBM and the seven dwarfs were Burroughs, UNIVAC, NCR, Control Data Corporation, Honeywell, General Electric and RCA."

https://www.networkworld.com/article/2212166/snow-white-and-the-seven-dwarfs.html#:~:text=The%20group%20of%20manufacturers%20was%20often%20referred%20to,player%20in%20the%20emerging%20generation%20of%20mainframe%20computing.