| 1. C M Laycock Electrical Engineers & Contractors | | DL3 0TE Darlington, County Durham |
| 2. T J Electrical Engineers & Contractors Ltd. | | PE2 6TD Peterborough, Cambridgeshire |
| 3. L & R Electrical Contractors & Engineers Ltd. | | ST5 0EQ Newcastle, Staffordshire |
| 4. MCe Electrical Engineers & Contractors | | LS9 8HZ Leeds, WEST YORKSHIRE |
| 5. Turner John Electrical Engineers & Contractors | | OL11 4DW Rochdale, Lancashire |
| 6. H Hilton Electrical Engineers & Contractors Ltd. | | OL11 3EP Rochdale, Lancashire |
| 7. B J Poulter Electrical Engineers & Contractors | | CM77 8DL Braintree, Essex |
| 8. Hickmans Electrical Engineers & Contractors Ltd. | | SN3 1TD Swindon, Wiltshire |
| 9. Lytestream Electrical Engineers & Contractors Ltd. | | DL1 2NS Darlington, County Durham |
| 10. Emmett J W & Co Electrical Engineers & Contractors | | WA8 3JH Widnes, Cheshire |
| 11. Jay Parker Electrical Engineers & Contractors Ltd. | | RH16 1GB Haywards Heath, West Sussex |
| 12. A F P Fire Protection Electrical Contractors & Engineers Ltd | | HU8 8BT Hull, YORKSHIRE |
| 13. Read Electrical Engineers & Contractors | | IP12 1LH Woodbridge, Suffolk |
| 14. F H Bushell Electrical Engineers & Contractors | | DA1 3AR Dartford, Kent |
| 15. D & S Electrical Engineers & Contractors | | N14 5RE Southgate, LONDON |
| 16. P V Kay Electrical Engineers Ltd. | | FY8 1UB Lytham St Annes, Lancashire |
| 17. S B S Electrical Engineers & Contractors Ltd. | | BB11 2HG Burnley, Lancashire |
| 18. A Hopkins Electrical Engineers & Contractors Ltd. | | GL20 8JB Tewkesbury, Gloucestershire |
| 19. N Glasby Electrical Contractors Ltd. | | S81 7DW Worksop, Nottinghamshire |
| 20. Hairdryer Electrical Engineers | | TQ2 6HS Torquay, Devon |
| 21. F A Forster Electrical Engineers | | TN23 7TS Ashford, Kent |
| 22. Ian Brown Electrical Engineers Ltd. | | PE12 0AD Spalding, Lincolnshire |
| 23. Hopwell"s Electrical Engineers | | DE65 5FQ Derby, Derbyshire |
| 24. Baker Electrical Engineers Ltd. | | GU2 7SH Guildford, Surrey |
| 25. A.T.O. Approved Electrical Engineers | | N17 6RU Tottenham, LONDON |
| 26. Nigel Sherwood Electrical Engineers Ltd. | | DN16 3AQ Scunthorpe, South Humberside |
| 27. Barrich Electrical Engineers | | GL5 4JA Stroud, Gloucestershire |
| 28. Gees Electrical Engineers Ltd. | | FY1 4BT Blackpool, Lancashire |
| 29. Newlands Electrical Engineers | | CA14 3YP Workington, Cumbria |
| 30. Shaws Electrical Engineers Ltd. | | G69 9BU Glasgow, Lanarkshire |
| 31. K B S (Electrical Engineers) Ltd. | | TW12 3DH Hampton, Middlesex |
| 32. Atlas Electrical Engineers | | SW19 6BG Wimbledon, LONDON |
| 33. R & C Electrical Engineers Ltd. | | ST6 4BL Stoke-on-Trent, Staffordshire |
| 34. D C Saxby Electrical Engineers | | DN17 3RL Scunthorpe, South Humberside |
| 35. J P S Electrical Engineers | | CR3 6AF Caterham, Surrey |
| 36. S J P Electrical Engineers Ltd. | | GL12 8RU Wotton-under-Edge, Gloucestershire |
| 37. Pbm Electrical & Heating Engineers Ltd | | BN10 7SG Peacehaven, East Sussex |
| 38. Parry"s (Electrical Engineers) Ltd. | | L7 0LX Liverpool, Merseyside |
| 39. V G R Electrical Engineers | | IG8 7LJ Woodford Green, Essex |
| 40. R B Electrical Engineers | | CV34 5DJ Warwick, Warwickshire |
| 41. N R B Electrical Engineers | | DE4 2AJ Matlock, Derbyshire |
| 42. M I B Electrical Engineers Ltd. | | DA15 9HW Sidcup, Kent |
| 43. Whitestone Electrical Contractors Ltd | | CV11 6UY Nuneaton, WARWICKSHIRE |
| 44. W E C Electrical Contractors | | TW14 0BJ Feltham, LONDON |
| 45. Smithers & Co Electrical Contractors | | RH3 7AS Betchworth, Surrey |
| 46. P & M Wathen Electrical Contractors | | GL1 5LG Gloucester, Gloucestershire |
| 47. S J Day Electrical Contractors | | PO12 4NY Gosport, Hampshire |
| 48. B D F Electrical Contractors | | BN41 2BH Brighton, East Sussex |
| 49. A K H Electrical Contractors | | OX12 7NG Wantage, Oxfordshire |
| 50. Youngs Electrical Contractors | | NE65 7XZ Morpeth, NORTHUMBERLAND |
| 51. A W M Electrical Contractors | | CV8 3JT Coventry, West Midlands |
| 52. S M Electrical Contractors | | SK14 8AH Hyde, CHESHIRE |
| 53. Brennan Electrical Service Contractors | | OL10 1NE Heywood, Lancashire |
| 54. Shorts Electrical Contractors Ltd. | | RG30 4NU Reading, Berkshire |
| 55. Pat Hinchley Electrical Contractors | | TR11 3LF Falmouth, Cornwall |
| 56. P & A Electrical Contractors | | EX23 8RY Bude, Cornwall |
| 57. Pace Electrical Contractors | | HA9 6DP Wembley, LONDON |
| 58. R S Electrical Contractors (U K) Ltd. | | SG1 6BF Stevenage, Hertfordshire |
| 59. D J Lawford Electrical Contractors | | DE13 0TA Burton-on-Trent, Staffordshire |
| 60. Alexanders (Electrical Contractors) Ltd. | | EH26 8LH Penicuik, Midlothian |
| 61. A P B Electrical Contractors | | GL4 6SP Gloucester, GLOUCESTERSHIRE |
| 62. Daniel Garnett Electrical Contractors | | BL9 9HW Bury, Lancashire |
| 63. Megohm Electrical Contractors | | LE7 4YD Leicester, Leicestershire |
| 64. E S Electrical Contractors | | TW17 8SS Shepperton, Middlesex |
| 65. John Watson Electrical Contractors | | DE5 3BD Ripley, Derbyshire |
| 66. T S N Electrical Contractors | | HU12 9QG Hull, North Humberside |
| 67. Dominick Horrell Electrical Contractors | | EX10 8XD Sidmouth, Devon |
| 68. N D Tickle Electrical Contractors | | BL6 7BL Bolton, LANCASHIRE |
| 69. J Heath Electrical Contractors | | TF8 7BU Telford, Shropshire |
| 70. Re-Lek Electrical Contractors | | LE8 4FJ Leicester, Leicestershire |
| 71. AE Martin Electrical Contractors | | BA14 9AT Trowbridge, WILTSHIRE |
| 72. Shaw (Electrical Contractors) | | S41 0HF Chesterfield, Derbyshire |
| 73. Whitehall Electrical Contractors | | CO2 8SB Colchester, ESSEX |
| 74. D T M Electrical Contractors | | BN1 8LQ Brighton, East Sussex |
| 75. D A J Fell Electrical Contractors | | KY16 8AL St Andrews, Fife |
| 76. M & R Tinsley Electrical Contractors | | HG4 1TE Ripon, North Yorkshire |
| 77. JB Electrical Contractors | | HA4 7SR Ruislip, LONDON |
| 78. A B Electrical Contractors | | WF7 5LB Pontefract, West Yorkshire |
| 79. Evans Electrical Contractors | | LL14 2LE Wrexham, Clwyd |
| 80. K Sheehan Electrical Contractors | | KT20 5TY Tadworth, Surrey |
| 81. J Wesley (Electrical Contractors) Ltd. | | SG4 9UP Hitchin, Hertfordshire |
| 82. H G Reed Electrical Contractors | | EX16 9HF Tiverton, Devon |
| 83. Aries Electrical Contractors | | N4 3BP Finsbury Park, LONDON |
| 84. E & M Electrical Contractors Ltd. | | ME5 9PX Chatham, Kent |
| 85. Chris Hutton Electrical Contractors | | EH9 1HQ Edinburgh, Midlothian |
| 86. M D S Electrical Contractors | | KY1 1SD Kirkcaldy, Fife |
| 87. A M Newton Electrical Contractors | | HA4 8AW Ruislip, Middlesex |
| 88. K J Electrical Contractors | | WA9 3AR St Helens, Merseyside |
| 89. M R Hogg Electrical Contractors | | KA23 9HQ West Kilbride, Ayrshire |
| 90. K & N Electrical Contractors | | LE11 2SG Loughborough, Leicestershire |
| 91. David Rogers Electrical Contractors | | SY1 4JQ Shrewsbury, Shropshire |
| 92. E Gillam (Electrical Contractors) Ltd. | | BD12 7DJ Bradford, West Yorkshire |
| 93. B.D.L. Electrical Contractors | | WF14 9SZ Mirfield, WEST YORKSHIRE |
| 94. M D S Electrical Contractors | | WF8 2LH Pontefract, West Yorkshire |
| 95. B B Electrical Contractors | | CT5 1LS Whitstable, Kent |
| 96. Beta Electrical Contractors Ltd | | ME16 8HY Maidstone, Kent |
| 97. AMCO Electrical Contractors Ltd | | PL4 7LU Plymouth, DEVON |
| 98. Tony Bray Electrical Contractors | | SP6 1EL Fordingbridge, Hampshire |
| 99. B & P Electrical Contractors Ltd | | HP17 8SL Aylesbury, Buckinghamshire |
| 100. Electrical Contractors | | PL5 4NY Plymouth, Devon |
| 101. O K Electrical Contractors | | TS19 9BJ Stockton On Tees, DURHAM |
| 102. Anderton Electrical Contractors | | WA6 0EF Warrington, Cheshire |
| 103. Yates Electrical Contractors | | L16 2LR Liverpool, Merseyside |
| 104. A J Carter Electrical Contractors | | PE28 9JZ Huntingdon, Cambs |
| 105. S G L Electrical Contractors | | SP6 1PY Fordingbridge, Hampshire |
| 106. B & J Electrical Contractors | | CV3 5BW Coventry, West Midlands |
| 107. Raymond Electrical & Building Contractors | | TW3 3UJ Hounslow, Middlesex |
| 108. Derby Electrical Contractors | | DE6 5BE Ashbourne, Derbyshire |
| 109. Thompson & Dunbar Electrical Contractors | | DG6 4JD Kirkcudbright, Kirkcudbrightshire |
| 110. Central Electrical Contractors | | HP19 8TE Aylesbury, Buckinghamshire |
| 111. Elmo Electrical Contractors Ltd | | SL1 6AE Slough, Berkshire |
| 112. Cromar Electrical Contractors | | HP16 0LA Great Missenden, Buckinghamshire |
| 113. Spectrum Electrical Contractors | | FY1 6QA Blackpool, LANCASHIRE |
| 114. Croot Electrical Contractors | | KT22 9HZ Leatherhead, Surrey |
| 115. Georgian Electrical Contractors | | BA2 1PX Bath, SOMERSET |
| 116. Alan Woodward Electrical Contractors | | IG10 4QE Loughton, Essex |
| 117. Camm Electrical Contractors | | NG34 7HP Sleaford, LINCOLNSHIRE |
| 118. Penn Electrical Contractors | | LN4 3PX Lincoln, Lincolnshire |
| 119. Castle Electrical Contractors | | SN5 7BG Swindon, Wiltshire |
| 120. R Haggarty Electrical Contractors | | KA27 8ER Brodick, Isle of Arran |
| 121. J & S Electrical Contractors | | PA19 1UF Gourock, Renfrewshire |
| 122. E J Brown Electrical Contractors | | CV3 6PN Coventry, West Midlands |
| 123. Ses Electrical Contractors Ltd | | WS1 3AG Walsall, West Midlands |
| 124. A S B Electrical Contractors Ltd. | | ST15 0QQ Stone, Staffordshire |
| 125. Davis Electrical Contractors | | S8 7BU Sheffield, South Yorkshire |
| 126. D B H Electrical Contractors | | EN1 1BT Enfield, Middlesex |
| 127. Wire Rite Electrical Contractors | | LE3 5HT Leicester, Leicestershire |
| 128. Electrical & Fire Alarm Contractors | | HA4 6SY Ruislip, Middlesex |
| 129. N E S Electrical Contractors | | B92 9JS Solihull, West Midlands |
| 130. Wisepower Electrical Contractors | | RG8 0SE Reading, Berkshire |
| 131. Gilberts Electrical Contractors | | NN13 6AJ Brackley, Northamptonshire |
| 132. Special Purpose Electrical Contractors Ltd. | | DE7 4RA Ilkeston, Derbyshire |
| 133. Eric Nicholson Electrical Contractors | | TD1 3HZ Galashiels, Selkirkshire |
| 134. Keith Doyle Electrical Contractors | | SK9 5JQ Wilmslow, Cheshire |
| 135. A M P Electrical Contractors | | L9 4SD Liverpool, Merseyside |
| 136. Mawby Electrical Engineers | | HP12 4RQ High Wycombe, Buckinghamshire |
| 137. Pfe Electrical Engineers Ltd. | | SM1 2QH Sutton, Surrey |
| 138. James Harkin (Electrical Engineers) Ltd. | | G20 7PZ Glasgow, Lanarkshire |
| 139. Dunn"s Electrical Engineers | | LE7 1NF Leicester, Leicestershire |
| 140. Potts C B Electrical & Mechanical Engineers | | TA13 5JQ South Petherton, Somerset |
| 141. Wallace & Lockhart (Electrical Engineers) Ltd. | | DG1 1JA Dumfries, Dumfriesshire |
| 142. Johnsons Electrical Engineers Ltd. | | DN21 1HX Gainsborough, Lincolnshire |
| 143. John Smith Electrical Engineers | | DG12 5EL Annan, Dumfriesshire |
| 144. S J Reed Electrical Engineers | | GU31 5EG Petersfield, Hampshire |
| 145. H D & R D Electrical & Mechanical Engineers Ltd. | | CM20 3AB Harlow, Essex |
| 146. A M C Electrical & Mechanical Engineers | | MK7 8DW Milton Keynes, Buckinghamshire |
| 147. Tooloid Electrical Engineers Ltd. | | KT10 9QJ Esher, Surrey |
| 148. Geddes Electrical Engineers | | LE2 7PH Leicester, Leicestershire |
| 149. Alan Everard Electrical Contractors | | ST3 4BE Stoke-on-Trent, Staffordshire |
| 150. E Crossland Electrical Contractors | | SK22 3BX High Peak, Derbyshire |
| 151. R Forester Electrical Contractors | | KY4 9AS Cowdenbeath, Fife |
| 152. Dave Watkins Electrical Contractors | | CH7 3NG Buckley, Clwyd |
| 153. Howard Robb Electrical Contractors | | DG8 6EJ Newton Stewart, Wigtownshire |
| 154. A A Arnold (Electrical Contractors) Ltd. | | OL16 5QR Rochdale, Lancashire |
| 155. A Walters Electrical Contractors | | SY3 7HG Shrewsbury, Shropshire |
| 156. A R George Electrical Contractors | | BA11 4DY Frome, Somerset |
| 157. Thomas North Electrical Contractors | | GL52 3DA Cheltenham, Gloucestershire |
| 158. J P Baldry Electrical Contractors | | HA4 6AQ Ruislip, Middlesex |
| 159. T L O Electrical Contractors Ltd. | | B77 3AE Tamworth, Staffordshire |
| 160. D & S Electrical Contractors | | EH20 9BD Loanhead, Midlothian |
| 161. C & L Electrical Contractors | | BR1 3PJ Bromley, Kent |
| 162. Sean Smith Electrical Contractors | | ST4 3JR Stoke On Trent, STAFFORDSHIRE |
| 163. M G Electrical Contractors | | B20 1EG Birmingham, West Midlands |
| 164. Anthony Jones Electrical Contractors | | HG1 3BQ Harrogate, North Yorkshire |
| 165. F & W Electrical Contractors Ltd. | | CM20 2SN Harlow, Essex |
| 166. Andrew Way Electrical Contractors | | EX2 5PE Exeter, DEVON |
| 167. David Howell Electrical Contractors | | BN2 6LJ Brighton, East Sussex |
| 168. M E Ruffles Electrical Contractors | | IP14 2AX Stowmarket, Suffolk |
| 169. Selworthy Electrical Contractors | | BR5 1JB Orpington, Kent |
| 170. Murgatroyds Electrical Contractors | | HG4 1RB Ripon, North Yorkshire |
| 171. Clemens Electrical Contractors | | TQ3 2ST Paignton, Devon |
| 172. Michael Smith Electrical Contractors | | LE18 3RN Wigston, Leicestershire |
| 173. Kingsway Electrical Contractors | | CM18 7RP Harlow, Essex |
| 174. M Tyson Electrical Contractors | | BD10 0BB Bradford, West Yorkshire |
| 175. Jarmans Electrical Contractors | | GU6 8SG Cranleigh, Surrey |
| 176. Armstrong Electrical Contractors | | DH4 4AR Houghton-le-Spring, Tyne and Wear |
| 177. Unitec Electrical Contractors | | DN36 4PE Grimsby, South Humberside |
| 178. Acorn Electrical Contractors Ltd. | | LU3 3JD Luton, Bedfordshire |
| 179. A-One Electrical Contractors | | SM6 9AP Wallington, Surrey |
| 180. F A S E Alarm & Electrical Contractors | | OL5 9NB Ashton-under-Lyne, Lancashire |
| 181. M G Calvert Electrical Contractors | | HG3 3NH Harrogate, North Yorkshire |
| 182. Bruce John Electrical Contractors | | EH8 7EG Musselburgh, LOTHIAN |
| 183. C & H Electrical Contractors | | KT22 9HN Leatherhead, Surrey |
| 184. Derryford Electrical Contractors | | WS14 9YW Lichfield, Staffordshire |
| 185. Christy Electrical Contractors | | OX4 1QU Oxford, Oxfordshire |
| 186. B J L Electrical Contractors Ltd. | | OL3 7EZ Oldham, Lancashire |
| 187. David Cloake Electrical Contractors | | CT21 5TU Hythe, Kent |
| 188. Gillespie Electrical Contractors | | DN41 8HB Grimsby, South Humberside |
| 189. G & H Electrical Contractors (London) Ltd. | | HA5 5JT Pinner, Middlesex |
| 190. Stan Gough Electrical Contractors | | GL7 1EH Cirencester, Gloucestershire |
| 191. Hughes Electrical Contractors | | PO20 7BX Chichester, West Sussex |
| 192. S P Selley Electrical Contractors | | SN2 7HZ Swindon, Wiltshire |
| 193. B L Electrical Contractors Ltd. | | S8 7RR Sheffield, South Yorkshire |
| 194. B & K Electrical Contractors | | TN5 6EB Wadhurst, East Sussex |
| 195. Metrical Installations Electrical Contractors | | TW10 6DP Richmond, SURREY |
| 196. Karton Electrical Contractors | | HX4 8AS Halifax, WEST YORKSHIRE |
| 197. R Smith Electrical Contractors | | CW12 2DY Congleton, Cheshire |
| 198. B & J Electrical Engineering Contractors | | RG23 8EH Basingstoke, HAMPSHIRE |
| 199. Hodges Electrical Contractors | | BA2 4QE Bath, Avon |
| 200. Ward Electrical Contractors | | PO37 6PB Shanklin, ISLE OF WIGHT |
