That is a good list. While I'm sure many companies could be added, I only post to include DEC https://en.wikipedia.org/wiki/Digital_Equipment_Corporation whose `vt50/vt100/vtXX` ideas may be with us, in software, for perpetuity unless something like Arcan (https://arcan-fe.com/) ever takes off.

Arcan is such a fascinating project that I've never quite managed to get my head around.