Question for the grammar Nazis

[Bornieo: Fully Loaded]

Originally Posted by Kevy Baby

But the difference that I was asking about was when the proper name ends in "s". Note that the name of the example company I gave include an "s" at the end of the name.

Any proper name can be possessive - something can belong to it.

Yeah, anything that ends with a proper "s" would be s' . Like "Warner Brothers". Exp: Warner Brothers' record label.