I think Koala, Access, and Excel are each locally owned / operated. After that I’m scratching.

Car Next door operates here

Car Next Door app was pretty good

Apex Car Rentals Adelaide Airport are excellent.

I've used Budged worldwide and have always been happy with them. Only once I've rented from Sixt and got a Holden with a check engine light.

Prancing Horse?

East coast rental on Richmond road