| AERONAUTICAL & GENERAL INSTRUMENTS LIMITED | Computers, electronics and optics | 1915 | Small company accounts |
| BRITISH DIAMOND WIRE DIE COMPANY LIMITED | Machinery and equipment | 1925 | Small company accounts |
| TWICKENHAM PLATING GROUP LIMITED | Fabricated metal products | 1947 | Full accounts |
| PARVALUX ELECTRIC MOTORS LIMITED | Electrical equipment | 1947 | Full accounts |
| WESTERN TYDENS LIMITED | Motor vehicles and parts | 1948 | Total exemption (full) |
| TWICKENHAM PLATING LIMITED | Fabricated metal products | 1949 | Group accounts |
| FREDERICK C.MITCHELL & SONS LIMITED | Ships, aircraft, rail and other transport | 1950 | Total exemption (full) |
| SUNSEEKER INTERNATIONAL LIMITED | Ships, aircraft, rail and other transport | 1960 | Full accounts |
| JOHN PIPE LIMITED | Wood products | 1961 | Total exemption (full) |
| HAMWORTHY INTERNATIONAL LTD | Machinery and equipment | 1962 | Full accounts |
| D. P. SEALS LIMITED | Rubber and plastics | 1962 | Full accounts |
| MULTISPARK EROSION LIMITED | Fabricated metal products | 1965 | Total exemption (full) |
| BOWMILL ENGINEERING LIMITED | Fabricated metal products | 1970 | Group accounts |
| EUROPLACER LIMITED | Machinery and equipment | 1970 | Group accounts |
| EUROPLACER (INTL) LIMITED | Repair and installation of machinery | 1973 | Audit-exempt subsidiary |
| S.A.F.I. LTD | Rubber and plastics | 1973 | Small company accounts |
| FLOWBIRD TRANSPORT LIMITED | Computers, electronics and optics | 1975 | Full accounts |
| WILLIAMS-HARRIS OPTICAL SUPPLIES LIMITED | Other manufacturing | 1975 | Total exemption (full) |
| CLAYTON ENGINEERING LIMITED | Other manufacturing | 1976 | Small company accounts |
| VENTURE ENGINEERING CAPITAL LIMITED | Fabricated metal products | 1977 | Audit-exempt subsidiary |
| DENIS WICK PRODUCTS LIMITED | Other manufacturing | 1978 | Small company accounts |
| TELSONIC (U.K.) LIMITED | Machinery and equipment | 1978 | Small company accounts |
| METALBLAST LIMITED | Fabricated metal products | 1981 | Total exemption (full) |
| TIME AND DATA SYSTEMS INTERNATIONAL LIMITED | Electrical equipment | 1981 | Small company accounts |
| C.T. PRODUCTION LIMITED | Computers, electronics and optics | 1982 | Total exemption (full) |
| SUNSEEKER INTERNATIONAL DISTRIBUTION LTD | Ships, aircraft, rail and other transport | 1982 | Audit-exempt subsidiary |
| PROLEC LIMITED | Computers, electronics and optics | 1982 | Small company accounts |
| CHILD TROPHIES LIMITED | Other manufacturing | 1983 | Total exemption (full) |
| N & P THERMO-PLASTIC MOULDERS (ACTON) LIMITED | Rubber and plastics | 1983 | Total exemption (full) |
| CUMBERLAND REINFORCEMENTS LIMITED | Fabricated metal products | 1983 | Total exemption (full) |
| NU-TECH ENGINEERING SERVICES LIMITED | Fabricated metal products | 1984 | Audit-exempt subsidiary |
| TRANSMISSION DEVELOPMENTS CO (GB) LIMITED | Fabricated metal products | 1985 | Medium company accounts |
| CANFORD HILL ENGINEERING LIMITED | Basic metals | 1985 | Total exemption (full) |
| ALDERNEY PLATING LIMITED | Fabricated metal products | 1986 | Total exemption (full) |
| ALPHA PRECISION ENGINEERING (POOLE) LIMITED | Machinery and equipment | 1987 | Total exemption (full) |
| P.W.B. (INDUSTRIAL HEATING) SERVICE LIMITED | Repair and installation of machinery | 1987 | Total exemption (full) |
| VENTEC 100 LIMITED | Other manufacturing | 1987 | Full accounts |
| R G S INVESTMENTS LIMITED | Fabricated metal products | 1989 | Total exemption (full) |
| MYCRONIC LTD | Machinery and equipment | 1990 | Small company accounts |
| MATHMOS LIMITED | Other manufacturing | 1990 | Total exemption (full) |
| ABLE LIFTING EQUIPMENT (SOUTHERN) LIMITED | Machinery and equipment | 1990 | Total exemption (full) |
| DDC DOLPHIN LIMITED | Machinery and equipment | 1991 | Full accounts |
| BASIS LIGHTING LIMITED | Electrical equipment | 1991 | Total exemption (full) |
| APPLIED RELAY TESTING LTD. | Computers, electronics and optics | 1992 | Total exemption (full) |
| KOOLPAK LIMITED | Pharmaceuticals | 1993 | Small company accounts |
| CONFEX TECHNOLOGY LIMITED | Machinery and equipment | 1993 | Total exemption (full) |
| CRYSTRAN LIMITED | Computers, electronics and optics | 1993 | Small company accounts |
| KEY PNEUMATICS LIMITED | Machinery and equipment | 1994 | Total exemption (full) |
| POOLE PROCESS EQUIPMENT LIMITED | Fabricated metal products | 1994 | Total exemption (full) |
| VANTAGE FOODS LIMITED | Food products | 1994 | Audit-exempt subsidiary |
| SAMWELL TOOLING LIMITED | Fabricated metal products | 1994 | Total exemption (full) |
| CMP (UK) LIMITED | Paper and paperboard | 1994 | Total exemption (full) |
| C.E.S. (POOLE) LIMITED | Repair and installation of machinery | 1996 | Unaudited abridged |
| ADEN PRO-FORM LIMITED | Fabricated metal products | 1996 | Total exemption (full) |
| K. D. WARDROBES LIMITED | Furniture | 1996 | Total exemption (full) |
| STORESHARE LIMITED | Repair and installation of machinery | 1996 | Total exemption (full) |
| ACTIVE RESEARCH LIMITED | Electrical equipment | 1996 | Total exemption (full) |
| GLOBAL OPTICS (UK) LIMITED | Computers, electronics and optics | 1998 | Total exemption (full) |
| AUTOMARINE (UK) LIMITED | Wood products | 1998 | Total exemption (full) |
| MONITORING SERVICES (U.K.) LIMITED | Basic metals | 1998 | Total exemption (full) |