Ysgol Morgan Llwyd

Ysgol Rhiwabon

Ysgol Rhosnesni, Wrexham

Ysgol y Grango

St David's College, Llandudno

Ysgol Aberconwy

Ysgol Bryn Elian High School

Ysgol Dyffryn Conwy

Ysgol Eirias

Ysgol Emrys Ap Iwan

Ysgol John Bright

Ysgol y Creuddyn

Blessed Edward Jones RC High School

Denbigh High School, Denbighshire

Prestatyn High School

Ruthin School

St Brigid's School, Denbigh

Ysgol Dinas Bran

Alun School

Castell Alun High School

Connah's Quay High School

Ysgol Glan Clwyd

Elfed High School

Flint High School (Ysgol Uwchradd y Fflint)

Hawarden High School

St David's High School, Saltney

Ysgol Maes Garmon

Ysgol Treffynnon

Aberdare Community School

Argoed High School

Afon Taf High School

Archbishop McGrath Catholic High School

Bedwas High School

Blessed Carlo Acutis Catholic School

Bryn Celynnog Comprehensive School

Brynteg School

Bryntirion Comprehensive School

Cardinal Newman RC Comprehensive School

Ysgol Gyfun Cynffig

Cyfarthfa High School

Ferndale Community School

Hawthorn High School

Heolddu Comprehensive School

Lewis Girls' School

Lewis School Pengam

Ysgol Maesteg

Mountain Ash Comprehensive School

Pencoed Comprehensive School