Northern Ireland Water - Ballymena

SolarStream NI - Newry

Milligan Oil Ltd Premier Heating Oil And Fuel Supplier Northern Ireland - Downpatrick

Epccarrickfergus - Newtownabbey

Fiesta Solar - Londonderry

Victus Energy Limited - Belfast

PB Proctor Electrical LTD- Solar PV installers - Belfast

GES Pellets - Omagh

bee SOLAR - Holywood

Smart Solar Panels Northern Ireland & UK - Londonderry