so I have found there is this really cool google map, but for searching CG studios. Isn`t that genius? I still couldn`t find lot of them in Prague, but it might get better. Below is a screengrab of London Soho, with about 44 studios :) And this is not the final number. Nowhere else in the world is such a high density of computer animation/postproduction houses as there :)
When you`re looking for a job, this can definitely help. Still lot of studios are missing there, but it`s quite easy if you know there is a studio missing, just use ADD STUDIO button and fill in the information about it (they do some check before it`s actually added).