I'm from Vienna (capital of Austria) and I think it is the biggest scene. It is like a small family. So there are about 50-60 kids, who go regularly to shows and support the local bands and promoters.
There are also other kids, who go to the bigger "mainstream" shows but I think they aren't really interested in hxc and diy. So the scene could be bigger ...
Feeding Time RIP
Nothing Gold Can Stay
(like Bracewar,Trash Talk, Infest)
(like Killing the Dream, Life Long Tragedy)
(like Guns Up!, No Warning)
Run Time Terror
One Pound Flesh From Your Chest
(like I don't know :) they make something special)
Nothing to Lose RIP
Down The Drain
Forgive in Hell