The Illuminating Engineering Society of Australia and New Zealand Ltd is an organization with Chapters in the five mainland S ... tates of Australia and New Zealand. The Society operates under the name: IES: The Lighting Society. This is the South Australia and Northern Territory Chapter. The aim of the Society is the advancement of the art and science of illumination and the dissemination of knowledge to all interested parties. The Society's diversified membership includes engineers, architects, educators, students, contractors, manufacturers and designers. read more