Combined Associated Schools Member schools Member schools

| School | Location_ | Enrolment | Founded | Denomination | Boys_Girls | Day_Boarding | Year_Entered_Competition | School_Colors |
|---|---|---|---|---|---|---|---|---|
| St Aloysius` College | Milsons Point | 1200 | 1879 | Catholic | Boys | Day | 1929 | Royal Blue and Gold |
| Barker College | Hornsby | 2300 | 1890 | Anglican | Boys only to Yr 9 Co-ed Year 10 to 12 | Day & Boarding | 1929 | Red & Blue |
| Cranbrook School | Bellevue Hill | 1000 | 1918 | Anglican | Boys | Day & Boarding | 1929 | Red, White & Blue |
| Knox Grammar School | Wahroonga | 1850 | 1924 | Uniting Church | Boys | Day & Boarding | 1929 | Black & Blue |
| Trinity Grammar School | Summer Hill | 2200 | 1913 | Anglican | Boys | Day & Boarding | 1929 | Green and White |
| Waverley College | Waverley | 1430 | 1903 | Catholic | Boys | Day | 1944 | Royal Blue and Gold |