| STEPHEN WALTERS & SONS LIMITED | Textiles | 1899 | Full accounts |
| OLDBURY ENGINEERING CO.,LIMITED | Machinery and equipment | 1946 | Small company accounts |
| BRITISH GASKETS LIMITED | Rubber and plastics | 1947 | Group accounts |
| ANTEC INTERNATIONAL LIMITED | Chemicals | 1961 | Full accounts |
| REDMAYNE ENGINEERING LIMITED | Other manufacturing | 1962 | Medium company accounts |
| TEST PLUGS LIMITED | Fabricated metal products | 1975 | Small company accounts |
| LINTON PLASTIC MOULDERS LIMITED | Rubber and plastics | 1980 | Audited abridged |
| RICHMAN (U.K.) LIMITED | Wood products | 1981 | Total exemption (full) |
| COTHERM (UK) LIMITED | Electrical equipment | 1986 | Full accounts |
| COCKX SUDBURY LIMITED | Printing and recorded media | 1987 | Total exemption (full) |
| SANDERS LACORAY TEXTILES LIMITED | Clothing | 1990 | Total exemption (full) |
| SPRAYBOOTH TECHNOLOGY LIMITED | Machinery and equipment | 1993 | Group accounts |
| DE VERE FABRICS LIMITED | Textiles | 1994 | Total exemption (full) |
| MACAWBER UK LTD | Machinery and equipment | 1994 | Total exemption (full) |
| PREFECT CONTROLS LTD | Machinery and equipment | 1997 | Total exemption (full) |
| UV LIGHT TECHNOLOGY LIMITED | Other manufacturing | 1997 | Small company accounts |
| PROSYNTH LIMITED | Chemicals | 1998 | Unaudited abridged |
| FIRST STOP COMMERCIALS LIMITED | Repair and installation of machinery | 1999 | Total exemption (full) |
| MICROCHARGE SYSTEMS LIMITED | Machinery and equipment | 1999 | Total exemption (full) |
| SENSORCOM LIMITED | Other manufacturing | 2000 | Small company accounts |
| DARO GROUP INTERNATIONAL LIMITED | Fabricated metal products | 2000 | Small company accounts |
| AIRCRAFT COMPONENT ENGINEERING SUPPORT LIMITED | Ships, aircraft, rail and other transport | 2001 | Total exemption (full) |
| A.F.T. TRENCHERS LIMITED | Machinery and equipment | 2001 | Total exemption (full) |
| S.A. CASTLE LIMITED | Repair and installation of machinery | 2002 | Total exemption (full) |
| SUDBURY PRINT GROUP LIMITED | Printing and recorded media | 2002 | Total exemption (full) |
| FUTURE FLOORS & DESIGN LIMITED | Other manufacturing | 2002 | Total exemption (full) |
| M J BRYANT ELECTRICAL LIMITED | Other manufacturing | 2004 | Total exemption (full) |
| H.B.S. ELECTRONICS LIMITED | Other manufacturing | 2004 | Audited abridged |
| THERMOFAST PRINT LIMITED | Printing and recorded media | 2004 | Total exemption (full) |
| SUFFOLK GLASS (UK) LIMITED | Other manufacturing | 2004 | Small company accounts |
| HAVERHILL MOULD & TOOLING LTD | Rubber and plastics | 2004 | Total exemption (full) |
| SPRAYBAKE LIMITED | Repair and installation of machinery | 2004 | Total exemption (full) |
| STL MANUFACTURING LIMITED | Machinery and equipment | 2006 | Audit-exempt subsidiary |
| IMPALA STONE LIMITED | Glass, ceramics, cement and stone | 2006 | Total exemption (full) |
| DARO UV SYSTEMS LIMITED | Machinery and equipment | 2007 | Small company accounts |
| SANDERS TEXTILES LIMITED | Textiles | 2007 | Total exemption (full) |
| GREYS HALL FABRICATION LIMITED | Fabricated metal products | 2008 | Total exemption (full) |
| POWER PLANT (EAST ANGLIA) LIMITED | Repair and installation of machinery | 2009 | Total exemption (full) |
| BOVILL & BOYD (TECHNICAL MOULDINGS) LIMITED | Rubber and plastics | 2009 | Small company accounts |
| WATERSAVERS LIMITED | Other manufacturing | 2009 | Small company accounts |
| WESTROCK ELECTRICAL LTD | Repair and installation of machinery | 2009 | Total exemption (full) |