International Competitions and Assessments for Schools (ICAS) is conducted by Educational Assessment Australia, UNSW Global Pty Limited. UNSW Global is a not-for-profit provider of education, training and consulting services and a wholly owned enterprise of the University of New South Wales.

Students from twenty countries now participate in ICAS. In Australia, New Zealand and the Pacific alone there are over 1.3 million entries. Doncaster Gardens students are given the opportunity to participate in the following areas:

• English
• Mathematics
• Science
• Digital Technology 
• Writing
• Spelling