i've just found this on my HDD.
it is not up to date also - it has few years [i think...]. :/ but hey - it's all about good old games, right ? riiiiiight? :)
map like this would be nice as target publishers/devs map for GOG further expansion :]
*i found this on some site - i am not author.

+1 for an awesome contribution! where did you find that?

that's the problem - i don't remeber :/
memory leaks - that's my Super power :|

old is old, this has already been posted to devs, besides if it's a few years old, it's worthless anyway.

Wow. My head hurts reading that chart. :|

Am I the only one who thinks coktel should have made penis shaped phones?

They're French. Figures.

Yep - And Dynamix is a new Male Enhancement Drug Company

looks like there was some update from gamesareevil.com.
full image is about 1.8 mb

Nice, but hard to read. But I guess that was unavoidable.
Anyway - there's a very interesting company on that map: Eidos - Hungry :D.

Interesting how there are only three isolated clusters...
Activision is there at the top with links to most everything. (It's even linked to Microsoft and Sega via Rockstar!)
EA has everything at the bottom. (Mostly EA [location] companies, though...)
And finally there's THQ's little cluster off to the side. (Small, but all big-name companies.)
Yes, it's obsolete now, but I wonder if a modern map would still show those three distinct groups?

This link, posted by GingeR13 above, has a much more complex and up-to-date map (click on the image to view full size).

Oh yeah, I probably should have looked at that before my little analysis there...
Hmm... The three independent groups from the first chart have become interconnected in a few spots...
Yet there are now quite a few more small clusters...interesting...

Wow... That must have taken a looooooong time to compile. And it's still not complete. At least, there are some companies I can't find, but then it's huge and convoluted. Can anyone tell me if Mastertronic, Virgin, Codemasters, Bitmap brothers and Sensible Software are in there somewhere? I can't find any of them.

typo
Eidos - Hungry (instead of Hungary)