Your comments

Experience is similar on OSX when trying to unpack the installer. Can't for the life of me find where it records that info though.

I've gone through most of the files in the Mac installer and haven't found anything corresponding to the Organization I've defined for the installer but its got to be in there somewhere.....

Make this information scriptable would be helpful too. For example the ability to add Organization to a generic installer via a script/command would be significantly useful. Especially with the need to code sign custom branded installers. This is not a process that is helpful to repeat over and over.