Citrix does desktop virtualization. Back when I was involved with using their stuff (20 years ago), it was a lot faster for global users to connect to our Citrix server to run client/server apps than to run them over the WAN.
Tibco does/did middleware for n-tier applications. Back when I used it (again 20 years ago) it worked, and was relatively painless.
hestefisk|4 years ago
avrionov|4 years ago
jrockway|4 years ago
A little off topic but good memories.