| GOODROWES OF CHICHESTER LIMITED | Repair and installation of machinery | 1943 | Total exemption (full) |
| DUALIT LIMITED | Other manufacturing | 1948 | Full accounts |
| EMCEL FILTERS LIMITED | Fabricated metal products | 1957 | Total exemption (full) |
| HPC PUBLIC LIMITED COMPANY | Fabricated metal products | 1959 | Full accounts |
| PETER VOIGT LIMITED | Other manufacturing | 1960 | Total exemption (full) |
| OSBORNE REFRIGERATORS LIMITED | Machinery and equipment | 1961 | Total exemption (full) |
| AFRISO EUROGAUGE LIMITED | Machinery and equipment | 1962 | Small company accounts |
| EUROTHERM LIMITED | Computers, electronics and optics | 1965 | Full accounts |
| B & W GROUP LTD | Computers, electronics and optics | 1966 | Full accounts |
| LAMINA DIELECTRICS LIMITED | Rubber and plastics | 1967 | Total exemption (full) |
| DELLNER FERRABYRNE LIMITED | Rubber and plastics | 1970 | Full accounts |
| AUTARKY AUTOMATION LIMITED | Machinery and equipment | 1972 | Total exemption (full) |
| VENT-AXIA GROUP LIMITED | Electrical equipment | 1973 | Audit-exempt subsidiary |
| PSM INSTRUMENTATION LIMITED | Computers, electronics and optics | 1975 | Small company accounts |
| ROSCOMAC LIMITED | Fabricated metal products | 1976 | Medium company accounts |
| M. BOOTH (BUILDERS) LIMITED | Wood products | 1976 | Total exemption (full) |
| QMC INSTRUMENTS LIMITED | Other manufacturing | 1976 | Total exemption (full) |
| KRAUSE AUTOMATION LTD | Machinery and equipment | 1977 | Full accounts |
| PENTAGON PLASTICS LIMITED | Rubber and plastics | 1978 | Total exemption (full) |
| E & A TOOLING LIMITED | Fabricated metal products | 1982 | Total exemption (full) |
| DELTEX MEDICAL LIMITED | Other manufacturing | 1983 | Total exemption (full) |
| LIQUID LEVEL SYSTEMS LIMITED | Computers, electronics and optics | 1984 | Total exemption (full) |
| WATLOW LIMITED | Other manufacturing | 1987 | Group accounts |
| M.T. FABRICATIONS LIMITED | Fabricated metal products | 1990 | Total exemption (full) |
| SHAWS GLASS LIMITED | Other manufacturing | 1990 | Total exemption (full) |
| ACCEL POWER SUPPLIES LIMITED | Computers, electronics and optics | 1991 | Total exemption (full) |
| RIVERSIDE SHEET METAL AND FABRICATIONS LIMITED | Fabricated metal products | 1991 | Total exemption (full) |
| TAGFIRST RETAIL SOLUTIONS LTD. | Repair and installation of machinery | 1991 | Total exemption (full) |
| CEMENTAID (UK) LIMITED | Chemicals | 1992 | Small company accounts |
| RAINBOW MANUFACTURING LIMITED | Rubber and plastics | 1992 | Total exemption (full) |
| PHARMA HYGIENE PRODUCTS LIMITED | Other manufacturing | 1994 | Small company accounts |
| MID SUSSEX FORKLIFT SERVICES LIMITED | Repair and installation of machinery | 1995 | Total exemption (full) |
| ST. GEORGE TECHNOLOGY LIMITED | Pharmaceuticals | 1995 | Total exemption (full) |
| LORLIN ELECTRONICS LIMITED | Computers, electronics and optics | 1996 | Total exemption (full) |
| SOUTH COAST REFRIGERATION SERVICES LIMITED | Repair and installation of machinery | 1997 | Total exemption (full) |
| AUTARKY GROUP LIMITED | Machinery and equipment | 1997 | Total exemption (full) |
| MATANN METAL FABRICATION LIMITED | Fabricated metal products | 1997 | Total exemption (full) |
| ALLERGY THERAPEUTICS (UK) LIMITED | Pharmaceuticals | 1998 | Full accounts |
| PREFAB STEEL COMPANY LIMITED | Fabricated metal products | 1999 | Total exemption (full) |
| MATFORM LIMITED | Paper and paperboard | 1999 | Total exemption (full) |
| OAKMASTERS LIMITED | Other manufacturing | 1999 | Total exemption (full) |
| INTAGLIO COMMUNICATIONS LIMITED | Printing and recorded media | 2000 | Total exemption (full) |
| A & S TOOLING LIMITED | Machinery and equipment | 2002 | Total exemption (full) |
| MISSION LABELS LIMITED | Printing and recorded media | 2002 | Total exemption (full) |
| FIRSTGATE SERVICES LIMITED | Repair and installation of machinery | 2002 | Total exemption (full) |
| JC POLISHING LIMITED | Basic metals | 2002 | Total exemption (full) |
| FIRE EXTINGUISHER VALVE COMPANY LIMITED | Machinery and equipment | 2003 | Total exemption (full) |
| ALLERGY THERAPEUTICS PLC | Pharmaceuticals | 2004 | Group accounts |
| MILLAND JOINERY LIMITED | Wood products | 2006 | Total exemption (full) |
| IAN FOSTER LIMITED | Other manufacturing | 2007 | Total exemption (full) |
| EDWARDS LIMITED | Machinery and equipment | 2007 | Full accounts |
| ALEX TOROK LTD | Fabricated metal products | 2007 | Total exemption (full) |
| EMITA POLO LIMITED | Wood products | 2007 | Total exemption (full) |
| OPTIGENE LIMITED | Computers, electronics and optics | 2008 | Total exemption (full) |