Nice find!
I forgot to add that one on credits, I'm the one to blame on this one...
These are what i could find:
Bensound
Ice2Hand
Vicetone & Tony Igy
Niklas Johansson
Lakey Inspired
Wayne Jones
Karl Casey @ White Bat Audio
Scott Buckley
DJ Andrés „El Chico Mezcla”
Aaron Kenny
Trazer
www . purple-planet . com
i digged tru the game files and i think thats all, so one less problem to worry about for you! ^^cheers mate, great game btw! ^^