| PENGUIN SOLUTIONS (PENG) LIMITED | Staines-upon-Thames | 1999 | Full accounts |
| G.T. ELECTRICAL LTD | Macclesfield | 1999 | Total exemption (full) |
| DOWNSVIEW COMPUTERS LIMITED | Brighton | 1999 | Total exemption (full) |
| Q ELECTRONICS LIMITED | Leeds | 1999 | Total exemption (full) |
| TRELLEBORG MARINE SYSTEMS UK LIMITED | Tewkesbury | 1999 | Full accounts |
| APICAL LIMITED | Cambridge | 1999 | Audit-exempt subsidiary |
| STRAIGHT EDGE MANUFACTURING LTD. | Croydon | 1999 | Total exemption (full) |
| TAILORED TEST SOLUTIONS LIMITED | Worthing | 1999 | Total exemption (full) |
| WHITE ROSE SECURITY LIMITED | Mexborough | 1999 | Total exemption (full) |
| ASPEN TECHNOLOGIES LIMITED | North Road Loughborough | 1999 | Total exemption (full) |
| KIPPERTIE LIMITED | Southend on Sea | 1999 | Unaudited abridged |
| MESSAGEMAKER DISPLAYS LIMITED | Redhill | 1999 | Small company accounts |
| CALEX ELECTRONICS LIMITED | Leighton Buzzard | 1999 | Total exemption (full) |
| AVIN ELECTRONICS LIMITED | Yate | 1999 | Total exemption (full) |
| PPM TECHNOLOGY LIMITED | Gwynedd | 1999 | Total exemption (full) |
| HEATMISER UK LIMITED | Blackburn | 1999 | Audit-exempt subsidiary |
| ALLIANCE PROPERTY DEVELOPMENTS U.K. LIMITED | Surbiton | 1999 | Total exemption (full) |
| KNIGHT OPTICAL (UK) LIMITED | London | 1999 | Small company accounts |
| SPECIALIST MICROWAVE SOLUTIONS LIMITED | Bedford | 1999 | Total exemption (full) |
| IGNITION COMPONENTS LIMITED | Bromsgrove | 1999 | Unaudited abridged |
| GARDASOFT VISION LIMITED | Cambridge | 1999 | Small company accounts |
| LENSCLEAR LIMITED | London | 1999 | Total exemption (small) |
| SONARDYNE OVERSEAS HOLDINGS LIMITED | Yateley | 1999 | Small company accounts |
| CONNOR SOLUTIONS LIMITED | Tyne and Wear | 1999 | Full accounts |
| SPICE APPLICATION SYSTEMS LIMITED | Didcot | 1999 | Total exemption (full) |
| ENSIGN INTEGRATED SYSTEMS LTD | Woodford Green | 1999 | Unaudited abridged |
| HYBRID INTEGRATED SYSTEMS LIMITED | Doncaster | 1999 | Total exemption (full) |
| ELECTRONIC MEDIA SERVICES LIMITED | Bordon | 1999 | Total exemption (full) |
| FISHER LEAK SYSTEMS LIMITED | Walsall | 1999 | Total exemption (full) |
| RESISTANCE WELDING SUPPLIES LIMITED | Cradley Heath | 1999 | Total exemption (full) |
| DIAMOULD LIMITED | London | 1999 | Audit-exempt subsidiary |
| PROJECTED IMAGE UK LIMITED | — | 1999 | Total exemption (full) |
| MAGNA ELECTRONICS LIMITED | Herefordshire | 1999 | Total exemption (full) |
| SPIN UK LTD | Worcester | 1999 | Small company accounts |
| HI 5 ELECTRONICS LTD. | Rochdale | 1999 | Total exemption (full) |
| STREAM MEASUREMENT LIMITED | Oldham | 1999 | Small company accounts |
| BLUM-NOVOTEST LTD. | Burton-on-Trent | 1999 | Small company accounts |
| GARNER OSBORNE CIRCUITS LIMITED | Newbury | 1999 | Full accounts |
| SSK PRODUCTS LIMITED | Shrewsbury | 1999 | Total exemption (full) |
| PROTASIS U.K. LIMITED | Kington | 1999 | Total exemption (full) |
| GLOBAL T S E LIMITED | Winchester | 1999 | Total exemption (full) |
| DYNEX SEMICONDUCTOR LIMITED | Lincolnshire | 1999 | Full accounts |
| RGL ELECTRONICS LIMITED | Wolverhampton | 1999 | Unaudited abridged |
| GE VERNOVA ELECTRIFICATION SOFTWARE UK LIMITED | Altrincham | 1999 | Full accounts |
| E WAVE CORPORATION LIMITED | London | 1999 | Total exemption (full) |
| HARBRUC CONTROLS LIMITED | East Grinstead | 1999 | Total exemption (full) |
| NETWORK SYSTEMS GROUP LIMITED | Doncaster | 1999 | Total exemption (full) |
| CELLAR MISER LIMITED | Crewe | 1999 | Unaudited abridged |
| WHARFSIDE ELECTRICAL WHOLESALERS LIMITED | Milton Keynes | 1999 | Total exemption (full) |
| HGL DYNAMICS LIMITED | Godalming | 1999 | Total exemption (full) |
| WESSEX ADVANCED SWITCHING PRODUCTS LIMITED | Wokingham | 1999 | Full accounts |
| HAYSYS LIMITED | Cardiff | 1999 | Total exemption (full) |
| BENSON VISCOMETERS LIMITED | Pembroke Dock | 1999 | Total exemption (full) |
| TES WATER LTD | Co. Tyrone | 1999 | Medium company accounts |
| ISCAPE LTD. | Swindon | 1999 | Total exemption (full) |
| VCT LTD. | Devon | 1999 | Unaudited abridged |
| BEADON SOLUTIONS LIMITED | Ilminster | 1999 | Total exemption (full) |
| TELEDYNE LIMITED | Chelmsford | 1999 | Full accounts |
| FRESHFIELD MICROWAVE SYSTEMS LIMITED | Hockley | 1999 | Total exemption (full) |
| NETRONICS LIMITED | Weymouth | 1999 | Unaudited abridged |