| Michael Sleep | 01639 720166 | | 118 High Street, Glynneath, Neath, SA11 5AL |  Map & Directions |
| Mps Engineering Service Ltd | 01639 823337 | | 43 Neath Road, Briton Ferry, Neath, SA11 2DX | | Map & Directions |
| Projectworld Ltd | 01639 812332 | | Morvern Works, Church Street, Briton Ferry, Neath, SA11 2JP | | Map & Directions |
| Express Electrical Controls Ltd | 01639 642596 | | 84 Windsor Road, Neath, SA11 1NR | | Map & Directions |
| Frank Baumber | 01639 620077 | | 1 Heol Brynna, Cimla, Neath, SA11 2DT | | Map & Directions |
| Doug Mclennan | 01639 843070 | | Pantyfedwen, Heol Giedd, Ystradgynlais, Swansea, SA9 1LQ | | Map & Directions |
| M Dardecker | 01792 874954 | | 39 Woodlands, Gowerton, Swansea, SA4 3DP | | Map & Directions |
| R D M Electrical Services | 01792 701256 | | Unit 6, Ferryboat Close, Cambrian Court, Swansea Enterprise Park, Swansea, SA6 8PZ | | Map & Directions |
| Dyfed Electronics Ltd | 01646 697773 | | Cleddau House , Milford Haven, SA73 3LA | | Map & Directions |
| Romano D J & Son | 01792 844123 | | Park Road, Ynystawe, Swansea, SA6 5AP | | Map & Directions |
| Neyland Marine Services Ltd | 01646 698968 | | The Docks, Milford Haven, SA73 3DJ | | Map & Directions |
| D C Williams | 01554 832913 | | 30 Elkington Road, Burry Port, SA16 0AA | | Map & Directions |
| Pat Test Wales | 01554 770575 | | 19 Langland Road, Llanelli, SA15 1BR | | Map & Directions |
| Barrack & Rees | 01437 765637 | | Eynhallow, Park Corner Road, Haverfordwest, SA61 2XA | | Map & Directions |
| Electechs Ltd | 01792 775250 | | Oxwich Court, Swansea Enterprise Park, Swansea, SA6 8RA | | Map & Directions |
| Martin Williams | 01570 471090 | | Penlon Cottage, Abermeurig, Lampeter, SA48 8PN | | Map & Directions |
| V R Hoare & Sons Ltd | 01437 764156 | | 58 Pembroke Road , Haverfordwest, SA61 1JT | | Map & Directions |
| D M G Systems Ltd | 01792 892107 | | 5 Clos Ty Mawr, Penllergaer, Swansea, SA4 9DA | | Map & Directions |
| Honeywell Control Systems Ltd | 01437 766761 | | Unit 1, Haverfordwest Business Centre, Merlins Court , Winch Lane , Haverfordwest, SA61 1SB | | Map & Directions |
| P J Gavin | 01792 874955 | | 97 Cecil Road, Gowerton, Swansea, SA4 3DN | | Map & Directions |
| Mechwind Services Ltd | 01792 817603 | | Unit 24/25, Neath Abbey Business Park, Neath Abbey, Neath, SA10 7DR | | Map & Directions |
| Betalec Ltd | 01792 324555 | | Unit 29, Neath Abbey Business Park, Neath Abbey, Neath, SA10 7DR | | Map & Directions |
| J W & E Morris & Son Ltd | 01639 883875 | | Margam, Port Talbot, SA13 2NG | | Map & Directions |
| E P P Electrics | 01554 890378 | | 23 Causeway Street, Kidwelly, SA17 4SU | | Map & Directions |
| Rhino Engineering Ltd | 01639 888119 | | 2 Cramic Way, Port Talbot, SA13 1RU | | Map & Directions |
| Alpha Electrics | 01792 798032 | | 62 Carmel Road, Winch Wen, Swansea, SA1 7JZ | | Map & Directions |
| Powerlec | 01792 584822 | | Meadow Street , Townhill, Swansea, SA1 6RZ | | Map & Directions |
| Rite Konnection Electrical Contractors | 01646 690449 | | Havens Head, Milford Haven, SA73 3QH | | Map & Directions |
| Butherway Electrical Ltd | 01437 532511 | | Rhiw, Rosebush, Clynderwen, SA66 7RH | | Map & Directions |
| Cirrus Electrical Services Ltd | 01554 810215 | | 36 Trilwm, Trimsaran, Kidwelly, SA17 4AW | | Map & Directions |
| R Morgan Electrics | 01834 844913 | | 2 Glenview Crescent, Tenby, SA70 8JB | | Map & Directions |
| D H Reynolds | 01554 832075 | | Belmont House, Ashburnham Road, Pembrey, Burry Port, SA16 0TS | | Map & Directions |
| North Gower Electrical Services | 01792 850696 | | Ty Gwyn, Llanmorlais, Swansea, SA4 3RY | | Map & Directions |
| Ivor Rees & Sons | 01437 532326 | | The Mill, Maenclochog, Clynderwen, SA66 7JY | | Map & Directions |
| Electrical Mechanical Services Ltd | 01792 894599 | | 1 Sunningdale Drive, Gorseinon, Swansea, SA4 4LZ | | Map & Directions |
| F A Wilkins | 01792 898736 | | 33 Swansea Road, Penllergaer, Swansea, SA4 9AQ | | Map & Directions |
| Sheldon Humphreys | 01348 840023 | | 88 St. Davids Road, Letterston, Haverfordwest, SA62 5SJ | | Map & Directions |
| Daubney Services | 01437 779663 | | 11 Delapoer Drive , Haverfordwest, SA61 1HX | | Map & Directions |
| C W M Electrical | 01639 898471 | | 10 Bridge Street, Port Talbot, SA13 1AG | | Map & Directions |
| Sherman Electrical Ltd | 01437 710810 | | Deerlands, Camrose, Haverfordwest, SA62 6HN | | Map & Directions |
| G J L Electrical Services Ltd | 01792 844031 | | Ashling, Lon Eithrym, Clydach, Swansea, SA6 5ER | | Map & Directions |
| Dyfed Electronics Ltd | 01646 694572 | | 13 Priory Street, Milford Haven, SA73 2AD | | Map & Directions |
| P J Gavin & Sons Ltd | 01792 793483 | | Unit 9, St. Davids Road, Swansea Enterprise Park, Swansea, SA6 8QL | | Map & Directions |
| Rons Electrical Services | 01570 423281 | | Esgaireiddig, Cwmann, Lampeter, SA48 8EU | | Map & Directions |
| Bill Owens | 01994 448429 | | Maes Y Werin, Llanboidy, Whitland, SA34 0EL | | Map & Directions |
| Ammcom | 01792 798361 | | Melrose Close, Swansea Enterprise Park, Swansea, SA6 8QE | | Map & Directions |
| Electratest | 01834 861389 | | Parc Yr Odyn, Kiln Park Road, Narberth, SA67 8TX | | Map & Directions |
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