Eastern Independent Schools of Melbourne

Part of the original intention of the EISM was for it to have a cultural component for the boys. This took the form of a Music Festival. Students from all schools would meet at a central venue and give a performance. The girls also had the opportunity to do this and also participate in a Drama festival which was discontinued in 1982 due to lack of interest.

In 1978, moves were initiated to combine the boys and girls competitions, with the 2 meeting formally in the middle of Term 2, 1978. After 12 months of joint meetings, the motion That there be an amalgamation of E.I.S.A. with E.I.G.S.A. to form one association was put to the principals' meeting on 8 August 1979. The motion was defeated. An alternative motion was then put which established a committee of principals and sport teachers whose task was to investigate the special needs of schools and also draw up a draft set of rules and regulations. The second draft of this committee had the name of the association as the ESISA, The Eastern Suburban Independent Schools Association. Eventually, the name Association of Eastern Independent Schools was agreed upon in April 1980.

There was a push for girls to have access to inter-school sport, and after extensive meetings in 1970 the following schools formed the EIGSA:

Note that schools are divided into three separate divisions which are determined by student population rather than level of ability.

• Eastern Division (1990–present)
• Central Division (1998–present)
• Southern Division (2013–present)