What's the governing state for a company?
Even though companies are registered Australia-wide, you must nominate the state or territory in which the company will be registered in.
As a very general guide, the state or territory of the head office, or where the company will mainly conduct business, may be appropriate.
The governing state can be changed in the future, but this can be costly, so it may be best to seek advice before registration if you are unsure. We are unable to advise on which state/territory to choose.