We always play music in our reception and cantene area in the office, which of course is a good thing. Even better is that I have great cred. with the receptionists who always ask me to burn some CDs for them to play in the reception. The corporate CDs they get are mainstream-soul or elevator music (no, not Eno), so incredibly boring after a while.
Now my CDs are played to a great extent, and of course I have to stay within certain frames in order not to ruin in for me completely (i.e no Opeth or Mars Volta :-).
Anyway, to conlude I think our office is one of the few where you will hear prog on a regular basis. My mixes are a blend of classical rock and some lighter prog, but if you visit one day, don't be surprised when you hear Porcupine Tree, Spock's Beard, Neal Morse, Ayreon etc. flow from the speakers.
There is a future after all