| H E ELECTRONICS LIMITED | Wimborne | 1997 | Total exemption (full) |
| FARSITE COMMUNICATIONS LIMITED | Basingstoke | 1997 | Total exemption (full) |
| SATURN SOLUTIONS LIMITED | Folkestone | 1998 | Total exemption (full) |
| STRATHKELVIN INSTRUMENTS LIMITED | Motherwell | 1998 | Total exemption (full) |
| AMTECH AUTOMATED MICRO TECHNOLOGY LIMITED | Newcastle upon Tyne | 1998 | Total exemption (full) |
| DON ELECTRONICS LIMITED | Yeadon | 1998 | Small company accounts |
| SENSTRONICS LIMITED | London | 1998 | Full accounts |
| INVERTEK DRIVES LIMITED | Powys | 1998 | Group accounts |
| STEVEY 3D LIMITED | Wolverhampton | 1998 | Total exemption (full) |
| J-TEQ EMS SOLUTIONS LTD | Liverpool | 1998 | Total exemption (full) |
| GLOBAL OPTICS (UK) LIMITED | Poole | 1998 | Total exemption (full) |
| VERITY MEDICAL LIMITED | Romsey | 1998 | Total exemption (full) |
| MIL POWER LIMITED | Buckingham | 1998 | Total exemption (full) |
| MINDCODE TECHNOLOGY LIMITED | — | 1998 | Unaudited abridged |
| OXFORD TECHNICAL SOLUTIONS LIMITED | Kidlington | 1998 | Medium company accounts |
| ALPHA R F LIMITED | Kent | 1998 | Total exemption (small) |
| CORONA TECHNOLOGIES LIMITED | Bromley | 1998 | Total exemption (full) |
| KEMTRON LIMITED | Swindon | 1998 | Small company accounts |
| ROBIN ARNOLD TECHNOLOGIES LIMITED | West Midlands | 1998 | Total exemption (full) |
| HMI ELEMENTS LIMITED | Leeds | 1998 | Total exemption (full) |
| TELETEST LIMITED | Chichester | 1998 | Total exemption (full) |
| XOR SOFTWARE LIMITED | Bristol | 1998 | Total exemption (full) |
| METIR PLC | York | 1998 | Group accounts |
| MUTEX LTD. | York | 1998 | Total exemption (full) |
| E C ELECTRONICS LIMITED | Abertillery | 1998 | Full accounts |
| SARAS TECHNOLOGY LIMITED | Leeds | 1998 | Total exemption (full) |
| OPTISENSE LIMITED | Horsham | 1998 | Total exemption (full) |
| PRETORIAN TECHNOLOGIES LIMITED | Gainsborough | 1998 | Total exemption (full) |
| HEARTSINE TECHNOLOGIES LIMITED | Belfast | 1998 | Full accounts |
| COOKE OPTICS LIMITED | Leicester | 1998 | Full accounts |
| GULLWING LIMITED | Cumbria | 1998 | Total exemption (full) |
| SKILCOM LIMITED | Thatcham | 1998 | Total exemption (full) |
| ACOUSTIC REPRODUCTION TECHNOLOGY LIMITED | Lanarkshire | 1998 | Total exemption (full) |
| ADTRAN NETWORKS (UK) LIMITED | York | 1998 | Full accounts |
| GJG ELECTRONICS LTD. | Cheshire | 1998 | Total exemption (full) |
| DATA RECORDING HEADS LIMITED | Winsford | 1998 | Total exemption (full) |
| BECKHOFF AUTOMATION LIMITED | Henley on Thames | 1998 | Full accounts |
| CURSEY TECHNOLOGY LIMITED | Hainault | 1998 | Unaudited abridged |
| ELECTRONIC ASSEMBLY SERVICES LIMITED | Long Eaton | 1998 | Total exemption (full) |
| INDUSTRIAL CONTROL DISTRIBUTORS LIMITED | Wellingborough | 1998 | Medium company accounts |
| APPLIED PHOTONICS LTD | Skipton | 1998 | Total exemption (full) |
| TORR SCIENTIFIC LIMITED | Bexhill-on-Sea | 1998 | Total exemption (full) |
| TROJAN TELECOM COMPANY LIMITED | Ashford | 1998 | Total exemption (full) |
| ZOOK EUROPE LIMITED | Killamarsh | 1998 | Small company accounts |
| G J C INSTRUMENTS LIMITED | Tattenhall | 1998 | Unaudited abridged |
| NISCAM LIMITED | Newcastle-under-Lyme | 1998 | Total exemption (full) |
| FIREANGEL SAFETY TECHNOLOGY LIMITED | Coventry | 1998 | Audit-exempt subsidiary |
| WILDTRAX ELECTRONICS (UK) LIMITED | Littlehampton | 1998 | Audit-exempt subsidiary |
| AMINA TECHNOLOGIES LIMITED | Huntingdon | 1998 | Total exemption (full) |
| ADVANCED ELECTRONIC DESIGNS LTD | Horsham | 1998 | Total exemption (full) |
| NORTEC SOLUTIONS LIMITED | Aylesbury | 1998 | Small company accounts |
| SAE-TECH LIMITED | Hungerford | 1998 | Total exemption (full) |
| TENSOR PLC | St. Neots | 1998 | Group accounts |
| HARP VISUAL COMMUNICATIONS LIMITED | Fareham | 1998 | Total exemption (full) |
| DMG CONTROL SYSTEMS LIMITED | Washington | 1998 | Total exemption (full) |
| ELITE THERMAL SYSTEMS LIMITED | Leicestershire | 1998 | Total exemption (full) |
| VISITECH INTERNATIONAL LIMITED | Sunderland | 1998 | Total exemption (full) |
| VIKING ELECTRONICS LIMITED | Oldham | 1998 | Total exemption (full) |
| STEWART TECHNOLOGY LTD. | Borders | 1998 | Total exemption (full) |
| ALAMAR ENGINEERING LTD. | Bury St. Edmunds | 1998 | Total exemption (full) |