| CISAA | Havergal College/Crescent School |
| CISAA | Lakefield College School |
| COSSA | Adam Scott Collegiate and Vocational Institute |
| COSSA | Cobourg Collegiate Institute ?? |
| CWOSSA | Brantford Collegiate Institute |
| EOSSAA | Vankleet Hill Collegiate Institute |
| GBSSA | St Joan of Arc Catholic High School (Barrie) |
| GHAC | Georgetown District High School |
| LOSSA | Bowmanville High School |
| ROPSSAA | Clarkson Secondary School |
| SOSSA | Sir Winston Churchill (St Catharines) |
| SWOSSAA | Kingsville District High School |
| TDCAA | Marshall McLuhan Catholic Secondary School |
| TDSSAA | Etobicoke Collegiate Institute |
| WOSSAA | St. Marys District Collegiate and Vocational Institute |
| YRAA | Markville Secondary School |
