1. NFL Electrical Services
14 Llys Westfa, Llanelli, SA14 8DG
2. Surge Electrical Ltd
7 Lister Green, Newport, NP20 6FD
3. ALG Electrical Ltd
6 Tressilian Place, Mountain Ash, CF45 4PD
4. Cantab Electrical Ltd
Cantab Rhos-y-Madoc, Wrexham, LL14 6LP
5. Electrical Estimates Ltd
26 Alexandra Rd, Aberystwyth, SY23 1LN
6. A.Scott Electrical Solutions
49 Clos Cae Nant, Cwmbran, NP44 3PD
7. Starlink Electrical Ltd
Llanover House, Llanover Rd, Pontypridd, CF37 4DY
8. C J S Electrical Wales Ltd
The Old Workshops, Mill Farm Ind Est, Cardiff, CF14 0SH
9. D J E C Ltd
Workshop Unit 3, Dyffryn Rd, Ammanford, SA18 3SY
10. Castle Graig Ltd
5 Cnap Llwyd Rd, Swansea, SA6 8NT
11. Beacons Electrical & Fire
Penvose, Brecon, LD3 0UE
12. Muller Electrics & General Maintenance
1 Cae Maen Llwyd, Hengoed, CF82 7LS
13. T.J Electrical Oil & Sun
Brynteg, Tregaron, SY25 6RS
14. MEM Electrical
45 Millfields Close, Kilgetty, SA68 0SA
15. S&S Electrical & Security Ltd
Dalton House, 35 Chester St, Wrexham, LL13 8AH
16. J D E Electrical Contractors
Tank House, Alltami Rd, Mold, CH7 6RH
17. EVI Electrical Services Ltd
17 Greenacre Drive, Bridgend, CF35 6JB
18. Electrical Services
195 Mynachdy Rd, Cardiff, CF14 3HL
19. Roberts Electrical NW Ltd
Unit 25, Parc Fforddlas, Rhyl, LL18 5AG
20. D.R. Electrical Contractors
Unit 1, Dyffryn Rd, Ammanford, SA18 3TA
21. P & J Electrical Contractors
16 Cambrian St, Aberdare, CF44 8LS
22. Cambrian Electrical Services
Unit 5, Heol Parc Mawr, Cross Hands, Llanelli, SA14 6RE
23. A.P Electrical Services
22 Tanybryn, Port Talbot, SA12 9AD
24. North Wales Electrical Services
Unit 4, Greenfield Business Park, Holywell, CH8 7GR
25. Cwmbran Electrical Ltd
12 Pen-Y-Lan Terrace, Newport, NP19 7PG
26. Powerhouse Electrical
34 Bryntirion Hill, Bridgend, CF31 4DA
27. J.D. Electrical Contractors
4 Dingle Rd, Colwyn Bay, LL29 7SH
28. Beacon Electrical Solutions
17 Bryn Morlais, Merthyr Tydfil, CF48 2AL
29. Ridgeway Electrical Services
3 Ridgeway Dr, Newport, NP20 5AQ
30. Fusion Electrical Contractors
8 Llys Y Coed, Llandudno Junction, LL31 9HW
31. Powertec Electrical Solutions
2 Heol Tegfan, Swansea, SA2 9LL
32. Vale Electrical Contractors
24 Station Terrace, Barry, CF63 4HL
33. Dyfed Electrical Services
15 Heol Y Ffynnon, Llanelli, SA15 1DX
34. Sparkies Electrical Ltd
5 Kingfisher Rise, Cardiff, CF23 8RN
35. Cymru Electrical Contractors
42 High St, Bangor, LL57 1NR
36. J & L Electrical Services
14 New Inn Rd, Pontypool, NP4 0TB
37. C S Electrical Services
30 Cwmaman Rd, Aberdare, CF44 6SA
38. Platinum Electrical Contractors
1 Lewis Terrace, Aberdare, CF44 6DA
39. A.M. Electrical
28 Maes-Y-Dderwen, Blackwood, NP12 1JQ
40. Connect Electrical Solutions
9 Llys Hafod, Neath, SA10 7SG
41. Wye Valley Electrical Services
15 Cathedral Rd, Brecon, LD3 7DP
42. AJW Electrical
45 Eversley Rd, Swansea, SA2 9DB
43. Gower Electrical Contractors
8 Southgate Rd, Swansea, SA3 2DA
44. Cardiff Electrical Installations
7 Birch Grove, Cardiff, CF14 1RS
45. Talbot Electrical Services
10 Newry Rd, Newport, NP20 4JX
46. Evans Electrical
15 Heol Y Mynydd, Caerphilly, CF83 8RL
47. Penarth Electrical Solutions
23 St Cyres Rd, Penarth, CF64 2SP
48. Blue Bay Electrical Ltd
3 Ty Nant, Prestatyn, LL19 9BB
49. Hughes Electrical Services
33 Bryn Y Mor, Llanelli, SA15 4RR
50. Solarstar Electrical Ltd
8 Heol Y Graig, Porth, CF39 0AL