| JENTONDIMACO LIMITED | Bedford | 1997 | Total exemption (full) |
| XITEK LIMITED | Spring Lane North Malvern | 1997 | Audit-exempt subsidiary |
| PULSAR PROCESS MEASUREMENT LIMITED | Birmingham | 1997 | Full accounts |
| SENSONICS LIMITED | Hertfordshire | 1997 | Total exemption (full) |
| P&M FACILITY SERVICES LIMITED | London | 1997 | Total exemption (full) |
| TIMESCO HEALTHCARE LIMITED | Basildon | 1997 | Unaudited abridged |
| BYTRONIC AUTOMATION LIMITED | Bromsgrove | 1997 | Total exemption (full) |
| CRAWFORD CONTROLS LIMITED | Sheffield | 1997 | Total exemption (full) |
| MERLIN LAZER LTD | Crowborough | 1997 | Total exemption (full) |
| NOTE PROTOTYPING LIMITED | Basildon | 1997 | Audit-exempt subsidiary |
| OMNICOM SYSTEMS (UK) LIMITED | Prescot | 1997 | Total exemption (full) |
| LA TECHNIQUES LIMITED | Surbiton | 1997 | Total exemption (full) |
| NEVIS COMPUTERS LIMITED | Bingley | 1997 | Total exemption (full) |
| ARTRONICS MANUFACTURING LIMITED | Chatteris | 1997 | Total exemption (full) |
| RSA TECHNOLOGY LIMITED | Faringdon | 1997 | Total exemption (full) |
| VECTOR ANALYTIC LIMITED | Worcester | 1997 | Total exemption (full) |
| BEAR ASSEMBLY LIMITED | Coventry | 1997 | Total exemption (full) |
| MEIBION MAESYCASTELL LIMITED | Cross Hands | 1997 | Total exemption (full) |
| HUTCHISON TECHNOLOGIES LIMITED | Dundee | 1997 | Full accounts |
| NORCOTT TECHNOLOGIES LIMITED | Widnes | 1997 | Total exemption (full) |
| MKC-CAIR (UK) LTD | Halifax | 1997 | Total exemption (full) |
| LITRON LASERS LIMITED | Warwickshire | 1997 | Medium company accounts |
| FILTRONIC BROADBAND LIMITED | Sedgefield | 1997 | Full accounts |
| AQUARIUM STUDIOS LIMITED | London | 1997 | Total exemption (full) |
| GATEWAY CONTROL SYSTEMS LIMITED | Buckie | 1997 | Total exemption (full) |
| MONITOR SYSTEMS SCOTLAND LIMITED | Aberdeen | 1997 | Total exemption (full) |
| ARMSTRONG OPTICAL LIMITED | Kings Park Road Northampton | 1997 | Total exemption (full) |
| WIRA INSTRUMENTATION LIMITED | Huddersfield | 1997 | Total exemption (full) |
| DIRECT CABLE SYSTEMS LIMITED | Diss | 1997 | Audit-exempt subsidiary |
| INTELLITEC M V LTD. | Bolton | 1997 | Total exemption (full) |
| DYNAMIC MOUNTS INTERNATIONAL LIMITED | London | 1997 | Total exemption (full) |
| TIERNEY STRACHAN CONSULTING LIMITED | Aberdeen | 1997 | Total exemption (full) |
| SENSORIUM LIMITED | Dunfermline | 1997 | Total exemption (full) |
| OPEN TECHNOLOGIES LIMITED | Southampton | 1997 | Total exemption (full) |
| REMSDAQ LIMITED | Bradford | 1997 | Medium company accounts |
| MERCURY COMPUTER SYSTEMS LIMITED | Reading | 1997 | Medium company accounts |
| A R D TECHNOLOGY LIMITED | Warwick | 1997 | Total exemption (full) |
| STARTEAM GLOBAL UK LIMITED | Littlehampton | 1997 | Small company accounts |
| ZYBERT COMPUTING LIMITED | Birmingham | 1997 | Unaudited abridged |
| INDUSTRIAL ENCODERS DIRECT LIMITED | Wrexham | 1997 | Total exemption (full) |
| ITRON (U.K.) LIMITED | Great Yarmouth | 1997 | Small company accounts |
| SILVER TELECOM LIMITED | Guildford | 1997 | Audit-exempt subsidiary |
| VECTAWAVE TECHNOLOGY LIMITED | Newport | 1997 | Total exemption (full) |
| CONCERT AUDIO COMMUNICATIONS LIMITED | Burton-on-Trent | 1997 | Total exemption (full) |
| EJ ELECTRONICS LIMITED | Bromsgrove | 1997 | Total exemption (full) |
| RS HYDRO LIMITED | Stoke Prior, Bromsgrove | 1997 | Total exemption (full) |
| EVERTZ UK LIMITED | Wokingham | 1997 | Full accounts |
| EFI LIMITED | Norwich | 1997 | Total exemption (full) |
| ADC BIOSCIENTIFIC LIMITED | Hoddesdon | 1997 | Total exemption (full) |
| FOXTEQ (UK) LIMITED | Aberdeen | 1997 | Small company accounts |
| BENQ UK LIMITED | London | 1997 | Full accounts |
| I L P DIRECT LIMITED | Ashford | 1997 | Total exemption (full) |
| GRANGE PRODUCTS LIMITED | Stockport | 1997 | Total exemption (full) |
| NEWTONS4TH LTD | Coalville | 1997 | Total exemption (full) |
| CCL COMPONENTS LTD. | Glasgow | 1997 | Full accounts |
| KEW INVESTMENTS LTD | Cambridge | 1997 | Total exemption (full) |
| MOORE & WRIGHT LIMITED | Sheffield | 1997 | Audit-exempt subsidiary |
| COMMEND UK LIMITED | Stansted | 1997 | Full accounts |
| NOVELLA SATCOMS LIMITED | Leeds | 1997 | Total exemption (full) |
| YORK PROBE SOURCES LIMITED | York | 1997 | Total exemption (full) |