what kind of software do the game houses use to make thier 3d models

do they all have somekind of custom software?
is there an industry standard software?

does any game company use Solidworks?

ive seen a feature once done on some game company once and they had created thier own custom software - but it was an old company so i would expect something like that.

I dont think all the new companies poping up create their own software