- Caddick Construction Limited
- Simons Construction PLC
- GMI Construction Group
- Shepherd Construction Limited
- Clugston Construction Limited
- Henry Boot Construction Limited
- Marshall (Building Contractors) Limited
- Simpson Construction Limited
- Balfour Beatty Construction Limited
- Kier Group
- Galliford Try
- Willmott Dixon Construction Limited
- Miller Construction Limited
- Sutcliffe Construction Limited