Gero is no good mate. You'd have better luck either side at Jurien or Kalbarri.
Apparently there are a lot of newbie pilots in Broome at the moment waiting for a start. It seems that he industry has bit a lull again.
Anyway, notwithstanding the above, a new list for you of ones that I know:
Skydive the beach (nationwide)
Kalbarri air charter
Juries bay
Air australia
Norwest airwork / coral bay
King leopold
Bas
Slingair
Bushflight
Shoal
Vintage tiger moth joyflights point cook
Warbirds adventure flights
Wettenhall air services