Seamus Sullivan Utility Warehouse, National and Local - Barry

Western Wood Energy Plant - Port Talbot

Energy & Power Limited - Port Talbot

Zone Electrical Ltd - Merthyr Tydfil

Pure Energy Wales Renewables Ltd - Briton

Gower Electric Co - Swansea

Let's Heat - Cardiff

Dyfed Eco Group - Llanelli

Kigg - Cardiff

Thermal Earth - Ammanford