Not sure - probably a little bigger than Fleischmann... They are owned by apparently a Bavarian cement baron (!!??!!). Maybe Steve4 can fill in some details here...
It's a little sad that these family owned businesses are getting eaten up though. Fleischmann holds what I would say is the same position in Euro models as Atlas - very broad line of HO and N, very high quality, etc... Their problem is high prices - it's all made in Germany. Roco I think is now using Romania and the far East.
Lou