Gas Cymru - Holywell

AG Clubbe - Deeside

HeatSource Energy Solutions Ltd - Wrexham

Niche Energy Solutions Ltd - Mold

Goodwin Electrical & Solar - Abergele

Green Label Renewables Ltd - Rhyl

GoGreenRS - Abergele

EkoBuild - Flint

Connah's Quay Power Station - Flint

CamGas Head Office - Deeside