Companies with a national reach may be interested in sustaining membership. Please use the contacts above to make inquiries.
If you are interested in joining one of our state associations (e.g. your organisation is state based) please use website links below. Organisations or individuals in the ACT should contact Stormwater NSW, likewise those in the Northern Territory should contact Stormwater South Australia.
SIA Queensland: www.siaqueensland.info
SIA NSW: www.siansw.info
SIA South Australia: www.stormwatersa.asn.au
SIA Victoria: www.stormwatervictoria.com.au
SIA Western Australia: www.stormwaterwa.asn.au