In 1991 the Heads of a selection of girls' schools in Victoria felt that it was time to respond to what former Principal of Korowa Anglican Girls' School, Dr Ros Otzen, recalls was the depiction of girls' schools as ‘fuddy duddy left-overs of a bygone era’. To challenge this claim Dr Otzen called together the Victorian Heads of AHISA Girls' Schools and from this first meeting was born The Education of Girls in Girls' Schools Focus Group (EGGSFG).
A very successful first conference was held at MLC Kew. This success led to the realisation that the group had ‘real power’ and in 1995 EGGSFG was transformed into The Alliance of Girls' Schools Australasia.
At the Alliance's first AGM in May 1996, membership was extended to all girls' schools in Australia and New Zealand whether independent, government or Catholic. Sectoral differences were overridden by the common purposes of girls' schools. On 18 August 1997, the Alliance was incorporated and in January 2003, with the membership of Raffles Girls' School in Singapore, the Alliance gained its first Asian member. In 2004, The Alliance received its first Hong Kong and South African members. There are now 142 member schools, including girls' schools in Singapore and the Philippines.
The Alliance is a vibrant and vital body within the Australasian education sector. Its support for ‘variety, quality and choice,’ and the improvement of education offered in girls' schools have led to its recognition and endorsement within the education community.