| RICHARDSON MALTINGS LIMITED | Beverages | 1890 | Audit-exempt subsidiary |
| MASSON SEELEY AND COMPANY,LIMITED | Machinery and equipment | 1920 | Total exemption (full) |
| HI-SPAN LIMITED | Fabricated metal products | 1939 | Small company accounts |
| BAXTER HEALTHCARE LIMITED | Pharmaceuticals | 1948 | Full accounts |
| POINTING LIMITED | Chemicals | 1949 | Full accounts |
| WITLEY PRESS LIMITED(THE) | Printing and recorded media | 1956 | Total exemption (full) |
| CALIGRAVING LIMITED | Printing and recorded media | 1956 | Total exemption (full) |
| SECOL LIMITED | Rubber and plastics | 1959 | Total exemption (full) |
| INSTRUMENT MACHINING SERVICE LIMITED | Fabricated metal products | 1961 | Total exemption (full) |
| TROX UK LIMITED | Fabricated metal products | 1962 | Full accounts |
| THURTON FOUNDRIES LIMITED | Basic metals | 1963 | Total exemption (full) |
| BARLEY CHALU LIMITED | Fabricated metal products | 1967 | Medium company accounts |
| WEENER PLASTICS NORWICH LTD. | Rubber and plastics | 1969 | Medium company accounts |
| N.L.ROPER & SONS LIMITED | Fabricated metal products | 1972 | Total exemption (full) |
| GARMET LIMITED | Fabricated metal products | 1972 | Total exemption (full) |
| H. YOUNG STRUCTURES LIMITED | Fabricated metal products | 1973 | Small company accounts |
| CODA PLASTICS LIMITED | Rubber and plastics | 1973 | Small company accounts |
| TEAM LOTUS INTERNATIONAL LIMITED | Motor vehicles and parts | 1975 | Total exemption (full) |
| PANEMA TRAILER ENGINEERING LIMITED | Machinery and equipment | 1976 | Total exemption (full) |
| STAMPS DIRECT LIMITED | Other manufacturing | 1976 | Total exemption (full) |
| JACK SAYERS PRODUCTS LIMITED | Fabricated metal products | 1979 | Total exemption (full) |
| A. & I. ROWLANDS LIMITED | Basic metals | 1980 | Total exemption (full) |
| TROPIC COFFEE LIMITED | Food products | 1982 | Total exemption (full) |
| COOPER ROLLER BEARINGS COMPANY LIMITED | Machinery and equipment | 1982 | Full accounts |
| D.V.S. PLATING LIMITED | Fabricated metal products | 1983 | Total exemption (full) |
| KINGSLAND ENGINEERING COMPANY LIMITED(THE) | Machinery and equipment | 1983 | Small company accounts |
| THANEHALL LIMITED | Computers, electronics and optics | 1985 | Total exemption (full) |
| MIG ANGLIA LIMITED | Repair and installation of machinery | 1987 | Total exemption (full) |
| HOMESTYLE FITTED FURNITURE LIMITED | Furniture | 1989 | Total exemption (full) |
| KNICAT LIMITED | Food products | 1991 | Total exemption (full) |
| EVANS (INSTRUMENTS) LIMITED | Other manufacturing | 1991 | Total exemption (full) |
| ANGLIA SHOPFITTING (NORWICH) LIMITED | Furniture | 1992 | Total exemption (full) |
| LAKENHAM CREAMERY LIMITED | Food products | 1992 | Total exemption (full) |
| NORWICH SUNBLINDS LIMITED | Other manufacturing | 1992 | Audit-exempt subsidiary |
| HY-TEK (ENGINEERING SERVICES) LIMITED | Fabricated metal products | 1992 | Total exemption (full) |
| CLASSIC TEAM LOTUS LIMITED | Motor vehicles and parts | 1993 | Total exemption (full) |
| FLOWRITE INDUSTRIAL DAMPERS LIMITED | Fabricated metal products | 1994 | Total exemption (full) |
| P55 LIMITED | Machinery and equipment | 1997 | Total exemption (full) |
| FABRICAN ENGINEERING LIMITED | Machinery and equipment | 1997 | Total exemption (full) |
| C J ENGINEERING (THETFORD) LIMITED | Fabricated metal products | 1998 | Total exemption (full) |
| RIFLECRAFT LIMITED | Fabricated metal products | 1998 | Total exemption (full) |
| R K & J JONES LIMITED | Chemicals | 1999 | Total exemption (full) |
| TEKPRO LIMITED | Machinery and equipment | 1999 | Total exemption (full) |
| SUNLINE CURTAINS AND BLINDS LIMITED | Other manufacturing | 2000 | Total exemption (full) |
| ERIC BATES & SONS LTD | Furniture | 2000 | Total exemption (full) |
| CNC MACHINE TOOLS LIMITED | Fabricated metal products | 2000 | Total exemption (full) |
| LADBROOK MFG LIMITED | Fabricated metal products | 2001 | Total exemption (full) |
| UNDERCOVER (GB) LIMITED | Other manufacturing | 2002 | Total exemption (full) |
| ALAN R CROSS & SON LTD | Repair and installation of machinery | 2002 | Total exemption (full) |
| CUBIC DESIGN AND CONSTRUCTION LIMITED | Other manufacturing | 2002 | Total exemption (full) |
| PIAF 2 LIMITED | Wood products | 2002 | Total exemption (full) |
| HIKEN LIMITED | Beverages | 2003 | Total exemption (full) |
| MANELINE COACHWORKS LIMITED | Ships, aircraft, rail and other transport | 2003 | Total exemption (full) |
| R & S BUDDS LIMITED | Fabricated metal products | 2003 | Total exemption (full) |
| YARMOUTH REWINDS LIMITED | Repair and installation of machinery | 2003 | Unaudited abridged |
| TRINITY WIRING LIMITED | Electrical equipment | 2004 | Unaudited abridged |
| MARINE WELD FABRICATION LIMITED | Fabricated metal products | 2004 | Total exemption (full) |
| BEOND ENGINEERING LTD | Fabricated metal products | 2004 | Total exemption (full) |
| DAVID UTTING ENGINEERING LTD | Machinery and equipment | 2004 | Total exemption (full) |
| RAGLETH LIMITED | Beverages | 2005 | Audit-exempt subsidiary |