The Tasmanian Multiple Birth Association (TasMBA) is a not-for-profit organisation comprising of multiple birth families . The organisation, run by volunteer families with twins or HOM's, provides support, resources and education to multiple birth families.

TasMBA offers a supportive ear from “those who know”, however it is more than that: regular social interaction for those who feel isolated; whether it is home visits, a phone call, coffee mornings, playgroups, evenings out or weekends away; education at a local level such as expectant parent sessions or first-food introduction classes; breastfeeding support, equipment hire and, volunteer coordination and assistance. These services go a long way to help multiple birth families in raising their children born in very special circumstances