| R A Breadon | 028 9182 2081 | | 13 Drumawhey Road, Newtownards, BT23 8RS |  Map & Directions |
| Industrial Process Systems Ltd | 028 9081 1258 | | 541 Saintfield Road, Carryduff, Belfast, BT8 8ES | | Map & Directions |
| E J Magee | 028 4483 1188 | | 60 Downpatrick Street, Crossgar, Downpatrick, BT30 9EA | | Map & Directions |
| The Control Shop | 028 7181 1455 | | Unit 3 Lynwood Business Centre, Mclean Road, Campsie Industrial Estate, Eglinton, Londonderry, BT47 3XX | | Map & Directions |
| Tonagh Electrics Ltd | 028 7962 8296 | | 2 Tonagh Heights, Draperstown, Magherafelt, BT45 7DD | | Map & Directions |
| James Haughey & Co | 028 2177 1295 | | 46 Glen Road, Glenariffe, Ballymena, BT44 0RF | | Map & Directions |
| K J Mcmullan | 028 4483 0030 | | 17 Drumnaconagher Road, Crossgar, Downpatrick, BT30 9JQ | | Map & Directions |
| Mcnally Electrics | 028 3026 5760 | | 19 Turnavall Road, Newry, BT34 1LZ | | Map & Directions |
| Premier Electrical Ltd | 028 9756 4046 | | 87 Dromore Road, Ballynahinch, BT24 8HT | | Map & Directions |
| Schrader Electronics Ltd | 028 9446 1300 | | 11 Belfast Road, Technology Park, Muckamore, Antrim, BT41 1QS | | Map & Directions |
| W R Mcmullan | 028 3755 1536 | | 1 Cladymilltown Road, Markethill, Armagh, BT60 1RS | | Map & Directions |
| Fane Control Panels | 028 3087 8824 | | 17 Cortamlat Road, Altnamachin, Newry, BT35 0EE | | Map & Directions |
| Victoria Electrics | 028 7188 4583 | | 4 Derry Road, Strabane, BT82 8DT | | Map & Directions |
| George Sittlington | 028 9145 6354 | | 12 Cleland Park North, Bangor, BT20 3EN | | Map & Directions |
| S K Electrical Services | 028 4372 4532 | | 17 Sunningdale Park, Newcastle, BT33 0QL | | Map & Directions |
| Adair Electrics Ltd | 028 9753 3433 | | 32 Garvaghy Road, Banbridge, BT32 3SZ | | Map & Directions |
| B B Supplies | 028 8776 9191 | | 10 Torrent Valley Business Park, Donaghmore, Dungannon, BT70 3BF | | Map & Directions |
| Glenview Electrical Contractors | 028 9062 7677 | | Unit 6 Work West Enterprise Centre, 301 Glen Road, Andersonstown, Belfast, BT11 8BU | | Map & Directions |
| Rotary Services Ltd | 028 7186 0527 | | Campsie Real Estate, Mclean Road, Eglinton, Londonderry, BT47 3PF | | Map & Directions |
| Power Action Ltd | 028 9260 4442 | | Unit 209, Ballinderry Road, Lisburn, BT28 2SA | | Map & Directions |
| Nevin Electrics Ltd | 028 7035 3857 | | 100 Cashel Road , Macosquin, Coleraine, BT51 4PR | | Map & Directions |
| R H K Davidson | 028 7034 2281 | | 35 Bushmills Road, Coleraine, BT52 2BP | | Map & Directions |
| Norlect Engineering Ltd | 028 3026 3890 | | Caulfield House, Caulfield Place, Newry, BT35 6AS | | Map & Directions |
| H Griffin | 028 7965 0437 | | 48 Loughbeg Road, Toomebridge, Antrim, BT41 3TN | | Map & Directions |
| Electec | 028 3832 2255 | | 51 Annesborough Road, Lurgan, Craigavon, BT67 9JD | | Map & Directions |
| Electrical Technical Services | 028 9042 5971 | | 21 Ardmore Heights, Holywood, BT18 0PY | | Map & Directions |
| S Mcfarland | 028 8164 8260 | | 24 Gorticashel Road, Gortin, Omagh, BT79 8NW | | Map & Directions |
| A C E Services Ltd | 028 9067 3386 | | 17 Batley Street, Belfast, BT5 5BW | | Map & Directions |
| Mcgurk & Moore | 028 7126 2960 | | Unit 15 Springtown Industrial Estate, Springtown Road, Londonderry, BT48 0LY | | Map & Directions |
| Premier Electrics | 028 7938 6849 | | 16c Tamlaghduff Road, Bellaghy, Magherafelt, BT45 8JQ | | Map & Directions |
| Jewel Systems Electronic Engineers | 028 9077 9870 | | Dargan Crescent, Belfast, BT3 9JP | | Map & Directions |
| D M Electrical Engineering Ltd | 028 9066 7705 | | 79 Northbrook Street, Belfast, BT9 7DJ | | Map & Directions |
| Thermal Electrics | 028 7136 5526 | | Unit 5, Northland Road Industrial Estate, Londonderry, BT48 0LD | | Map & Directions |
| D M G Electrics Ltd | 028 9187 8808 | | 66 Castle Street, Comber, Newtownards, BT23 5DZ | | Map & Directions |
| Star Delta Electrical Co | 028 9045 7535 | | 8-10 Tamar Street, Belfast, BT4 1HS | | Map & Directions |
| C D Mccann | 028 8775 8691 | | Drumballyhugh House, Annaghquin Road, Dungannon, BT70 3JY | | Map & Directions |
| J J Mcguigan | 028 7962 8395 | | 34 St. Patricks Street, Draperstown, Magherafelt, BT45 7AL | | Map & Directions |
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