| C.L. ELECTRICAL CONTROLS LIMITED | Bristol | 2004 | Total exemption (full) |
| ENGINEERED ARTS LIMITED | Falmouth | 2004 | Small company accounts |
| EXLED LIMITED | Stonehouse | 2004 | Total exemption (full) |
| LINKLITE SYSTEMS LIMITED | London | 2004 | Unaudited abridged |
| THERMAFLOW LTD | Glasgow | 2004 | Total exemption (full) |
| PHAROS ARCHITECTURAL CONTROLS LIMITED | London | 2004 | Small company accounts |
| BLE SMOKE AND FIRE CURTAINS LIMITED | Sheffield | 2004 | Audit-exempt subsidiary |
| G4 MPS LIMITED | Ely | 2004 | Total exemption (full) |
| BUDDI LIMITED | Rickmansworth | 2004 | Full accounts |
| LEISURE HEATING LIMITED | Loughborough | 2004 | Total exemption (full) |
| SOLUTIONS & DESIGN (SYSTEMS) LIMITED | Gloucestershire | 2004 | Total exemption (full) |
| EDGE LIGHTING SERVICES LIMITED | Leeds | 2004 | Total exemption (full) |
| FULL FAT AUDIO LIMITED | Hertfordshire | 2004 | Total exemption (full) |
| S C CONTROL SYSTEM LIMITED | King’s Lynn | 2004 | Total exemption (full) |
| AKM SOLUTIONS LIMITED | — | 2005 | Total exemption (full) |
| BPC EMEA LIMITED | Romsey | 2005 | Total exemption (full) |
| CRESTCHIC LIMITED | Burton on Trent | 2005 | Full accounts |
| GHS SPECIAL PROJECTS LTD | Salford | 2005 | Total exemption (full) |
| BELMOS ELECTRICAL SERVICES LTD. | Bellshill | 2005 | Unaudited abridged |
| CHARGEBOX LTD | London | 2005 | Total exemption (full) |
| IMPEX LIGHTING LIMITED | Thames Ditton | 2005 | Unaudited abridged |
| L.E.C. MARINE (KLYNE) LIMITED | Lowestoft | 2005 | Small company accounts |
| SOLID STATE LOGIC UK LIMITED | Kidlington Oxford | 2005 | Audit-exempt subsidiary |
| LIFESAVER POWER LTD | Coggeshall, Colchester | 2005 | Total exemption (full) |
| STARSPOT LIMITED | Daventry | 2005 | Total exemption (full) |
| S & T SYSTEMS LTD | Wrexham | 2005 | Total exemption (full) |
| ALTERTEK LTD | Southampton | 2005 | Total exemption (full) |
| REVADER SECURITY LIMITED | Milton Keynes | 2005 | Total exemption (full) |
| BN THERMIC LTD | Crawley | 2005 | Total exemption (full) |
| EXELLISON SWITCHGEAR SERVICES LIMITED | Walsall | 2005 | Total exemption (full) |
| SUSSEX ASSEMBLIES LIMITED | Hassocks | 2005 | Total exemption (full) |
| E-STIM SYSTEMS LIMITED | London | 2005 | Total exemption (full) |
| THE ENGLISH HOUSE LIMITED | Woodbridge | 2005 | Total exemption (full) |
| ADVANCE TECHNICAL SYSTEMS LTD | Cleckheaton | 2005 | Small company accounts |
| P.P.I. ENGINEERING LTD | Norwich | 2005 | Total exemption (full) |
| R & R POWER & CONTROL SYSTEMS LTD | Moneyreagh | 2005 | Total exemption (full) |
| INTERCEL LTD | Altrincham | 2005 | Audited abridged |
| GSO ELECTRICAL LIMITED | Manchester | 2005 | Total exemption (full) |
| AVID HIFI LIMITED | Huntingdon | 2005 | Total exemption (full) |
| MARTIN INDUSTRIES LIMITED | New Milton | 2005 | Total exemption (full) |
| GSL SERVICING LIMITED | Exmouth | 2005 | Total exemption (full) |
| ELSS ENGINEERING LIMITED | Eglinton | 2005 | Total exemption (full) |
| DELTA OBSTRUCTION LIGHTING LIMITED | Rochdale | 2005 | Unaudited abridged |
| WINDER POWER LIMITED | Leeds | 2005 | Full accounts |
| ALPHA-CURE HOLDINGS LIMITED | Daventry | 2005 | Audited abridged |
| POWELL (UK) LIMITED | Bradford | 2005 | Full accounts |
| AUDESSENCE LIMITED | Haywards Heath | 2005 | Total exemption (full) |
| CUMMINS ELECTRIFIED POWER EUROPE LTD. | Edinburgh | 2005 | Full accounts |
| ENW LIMITED | Chester | 2005 | Total exemption (full) |
| SOLAPAK LIMITED | High Wycombe | 2005 | Full accounts |
| HULME MARTIN HEAT SEALERS LIMITED | Waterlooville | 2005 | Total exemption (full) |
| CONVERT LTD | Haywards Heath | 2005 | Unaudited abridged |
| ALLOWAY UK LIMITED | North Lanarkshire | 2005 | Total exemption (full) |
| RMS PRECISION LIMITED | Tamworth | 2005 | Total exemption (full) |
| CCS (SATCOM) LIMITED | Dunmow | 2005 | Unaudited abridged |
| KAB SYSTEMS UK LTD | Oldham | 2005 | Unaudited abridged |
| C K FIRES LIMITED | Stratford-upon-Avon | 2005 | Small company accounts |
| CARROLL & MEYNELL LIMITED | Stockton-on-Tees | 2005 | Total exemption (full) |
| RAYTEC LIMITED | Ashington | 2005 | Full accounts |
| XP POWER INTERNATIONAL LIMITED | Reading | 2005 | Full accounts |