Peirianneg Sifil Gelli Civil Engineering Ltd - Porthmadog

EWP Ltd - Bangor

ELECTRICAL TESTING & CERTIFICATION - Bala

SD Engineering - Corwen

Gelli Civil Engineering Ltd - Penrhyndeudraeth

Firstcall Trade Services - Edinburgh

L&S Building Services - Alloa

S1 Developments - Edinburgh

Asi Joinery Limited - Edinburgh

North Wales Engineering Supplies - Rhyl