Posted: 02.09.2007 at 06.09
as far as i know in Australia any registered private company is pty ltd (proprietry limited). The "ltd" is used by itself when you are referring to public companies, and if, for example, they were called xyz company, they could call themselves xyc co ltd.
Internationally, companies (ie in thailand) can call themselves co. ltd as a limited company/corporation but, to cut a long story short, if your in australa, and your planning on registering a private company, your stuck with pty ltd.