DEC.
I see the carcass of DEC every time I drive from Springfield to Portland. I hadn’t thought of them in years.
Worked for them in 89-90. What a great job. Learned so much. But when one of the “old-timers” took the first voluntary retirement in early 90, he told me “It’s all about the PC now, you better make some plans elsewhere”. Left in mid-90. Still used their stuff for 15 years after that. Miss OpenVMS. Nice OS.