However I wouldn't wonder if these would be discontinued after the purchase, as they might not be what Siemens considers the core business of Mentor. Which is EDA tools I guess.

Mentor Graphics has a huge presence here and pretty much everyone over the age of 35 in the Portland tech scene has worked for them or Intel at some point. One of my business partners worked there for at least a decade when I was in diapers.

After IBM bought Sequent (a few years between events) my dad worked at Synopsys (also in the Portland area) for quite a while.

To me, it's just always been, yeah Cadence, Mentor, Synopsys- no big deal. Then when someone freaks out because I have access to some of the tools or their eyes roll back and their look goes blank I remember that they are wildly specific companies that mean nothing to like 95% of the people I have ever met.

EDIT: To bring it back full circle in a way no on else cares about: Nike wound up buying/taking control of the old Sequent campus after IBM bought them. Shortly after I had my first child I found myself working on a tech project as a partner with Nike in my dad's old building, on his old floor, in generally the same area and I had a kind of weird mental moment.

I personally found Cadence Virtuoso to have above average UX, but I do agree that the GUI looks slightly dated.