That is what we discovered on Wikipedia concerning the Netball South Australia:

Netball South Australia is the governing body for netball in South Australia. It is affiliated to Netball Australia. It is responsible for organizing and managing the Netball South Australia Premier League as well as numerous other leagues and competitions for junior and youth teams. It is also responsible for organizing and managing two elite level representatives teams, Adelaide Thunderbirds, who compete in the Suncorp Super Netball, and Southern Force who compete in the Australian Netball League. Its headquarters are based at Netball SA Stadium.