| Admiralty Secondary School |
| Ahmad Ibrahim Secondary School |
| Anderson Secondary School |
| Ang Mo Kio Secondary School |
| Anglican High School |
| Anglo-Chinese School (Barker Road) |
| Assumption English School |
| Assumption Pathway School |
| Bartley Secondary School |
| Beatty Secondary School |
| Bedok Green Secondary School |
| Bedok North Secondary School |
| Bedok South Secondary School |
| Bedok Town Secondary School |
| Bedok View Secondary School |
| Bendemeer Secondary School |
| Bishan Park Secondary School |
| Bowen Secondary School |
| Bukit Batok Secondary School |
| Bukit Panjang Government High School |
| Bukit View Secondary School |
| Canberra Secondary School |
| Catholic High School |
| Cedar Girls' Secondary School |
| Chai Chee Secondary School |
| Changkat Changi Secondary School |
| Chestnut Drive Secondary School |
| CHIJ Katong Convent |
| CHIJ Saint Nicholas Girls' School (Secondary) |
| CHIJ Saint Theresa's Convent |
| CHIJ Toa Payoh Secondary School |
| Chong Boon Secondary School |
| Christ Church Secondary School |
| Chua Chu Kang Secondary School |
| Chung Cheng High School(Main) |
| Chung Cheng High School (Yishun) |
| Compassvale Secondary School |
| Coral Secondary School |
| Crescents Girls' School |
| Dunearn Secondary School |
| Dunman Secondary School |
| East Spring Secondary School |
| East View Secondary School |
| Evergreen Secondary School |
| Fairfield Methodist Secondary School |
| Fajar Secondary School |
| Fuchun Secondary School |
| Gan Eng Seng Secondary School |
| Greendale Secondary School |
| Greenridge Secondary School |
| Guanyang Secondary School |
| Hillgrove Secondary School |
| Holy Innocent's High School |
| Hong Kah Secondary School |
| Hougang Secondary School |
| Hua Yi Secondary School |
| Hwa Chong Institution |
| Junyuan Secondary School |
| Jurong Secondary School |
| Jurongville Secondary School |
| Juying Secondary School |
| Kent Ridge Secondary School |
| Kranji Secondary School |
| Kuo Chuan Presbyterian Secondary School |
| Loyang Secondary School |
| Macpherson Secondary School |
| Maris Stella High School(Sec) |
| Marsiling Secondary School |
| Mayflower Secondary School |
| Methodist Girls' School(Sec) |
| Montfort Secondary School |
| Nan Chiau High School |
| Nan Hua High School |
| Nanyang Girls' High School |
| Navel Base Secondary School |
| New Town Secondary School |
| Ngee Ann Secondary School |
| North View Secondary School |
| Northbrooks Secondary School |
| Northland Secondary School |
| Northlight School |
| Outram Secondary School |
| Pasir Ris Secondary School |
| Paya Lebar Methodist Girls' School |
| Pei Hwa Secondary School |
| PeiCai Secondary School |
| Ping Yi Secondary School |
| Pioneer Secondary School |
| Presbyterian High School |
| Punggol Secondary School |
| Queenstown Secondary School |
| Regent Secondary School |
| Riverside Secondary School |
| Saint Andrew's Secondary School |
| Saint Gabriel's Secondary School |
| Saint Hilda's Secondary School |
| Saint Margaret's Secondary School |
| Saint Patrick's Secondary School |
| School of Science and Technology |
| Seng Kang Secondary School |
| Serangoon Garden Secondary School |
| Serangoon Secondary School |
| Siglap Secondary School |
| Singapore Chinese Girls' School(Secondary) |
| Springfield Secondary School |
| St Joseph's Institution (SJI) |
| Swiss Cottage Secondary School |
| Tampines Secondary School |
| Tanglin Secondary School |
| Tanjong Katong Girls' School |
| Teck Whye Secondary School |
| Telok Kurau Secondary School |
| Temasek Secondary School |
| Unity Secondary School |
| Victoria School |
| West Spring Secondary School |
| Whitley Secondary School |
| Woodgrove Secondary School |
| Woodlands Secondary School |
| Yio Chu Kang Secondary School |
| Yishun Secondary School |
| Yishun Town Secondary School |
| Yuan Ching Secondary School |
| Yuhua Secondary School |
| Yusof Ishak Secondary School |
| Yuying Secondary School |
| Zhenghua Secondary School |
| Zhonghua Secondary School |
