| NEW AND LINGWOOD LIMITED | Clothing | 1916 | Total exemption (full) |
| FIELDWOOD PRODUCTS LIMITED | Wood products | 1948 | Total exemption (full) |
| CROCKETT AND JONES LIMITED | Leather goods and footwear | 1948 | Group accounts |
| FINE LADY BAKERIES LIMITED | Food products | 1948 | Full accounts |
| WHITWORTH BROS.LIMITED | Food products | 1949 | Full accounts |
| TORQUEMETERS LIMITED | Machinery and equipment | 1951 | Full accounts |
| GLOVERALL PUBLIC LIMITED COMPANY | Clothing | 1951 | Full accounts |
| J.E.MATTHEWS AND SONS LIMITED | Fabricated metal products | 1952 | Total exemption (full) |
| HEYGATES LIMITED | Food products | 1958 | Full accounts |
| T.& K.PRECISION LIMITED | Fabricated metal products | 1961 | Total exemption (full) |
| HEYGATE & SONS LIMITED | Food products | 1962 | Group accounts |
| P. GERRATT LIMITED | Other manufacturing | 1964 | Total exemption (full) |
| TAYLOR-KIGHTLEY ENGINEERING COMPANY LIMITED | Fabricated metal products | 1965 | Total exemption (full) |
| BRIXWORTH ENGINEERING COMPANY LIMITED(THE) | Machinery and equipment | 1965 | Total exemption (full) |
| CONSTANTIA FFP LIMITED | Printing and recorded media | 1966 | Medium company accounts |
| FESTO LIMITED | Machinery and equipment | 1968 | Full accounts |
| MINITEK(MOULDINGS)LIMITED | Rubber and plastics | 1968 | Unaudited abridged |
| FUTUREPRINT (NORTHAMPTON) LIMITED | Paper and paperboard | 1970 | Total exemption (full) |
| SAYERS MOTOR FACTORS LIMITED | Chemicals | 1971 | Unaudited abridged |
| CPL AROMAS LIMITED | Chemicals | 1971 | Audit-exempt subsidiary |
| MENICON LIMITED | Other manufacturing | 1972 | Small company accounts |
| QUALITY NUT PRODUCTS LIMITED | Food products | 1972 | Total exemption (full) |
| ARNOLD ENGINEERING PLASTICS LIMITED | Rubber and plastics | 1972 | Audited abridged |
| PIROTO LABELLING LIMITED | Printing and recorded media | 1973 | Small company accounts |
| STERTIL UK LTD. | Machinery and equipment | 1973 | Full accounts |
| NENE WAREHOUSE SOLUTIONS LTD | Repair and installation of machinery | 1974 | Full accounts |
| CAMPBELL PLASTICS LIMITED | Chemicals | 1975 | Total exemption (full) |
| ACCESS IRRIGATION LIMITED | Other manufacturing | 1976 | Total exemption (full) |
| HORIBA JOBIN YVON IBH LTD | Computers, electronics and optics | 1977 | Small company accounts |
| TARGET FURNITURE LIMITED | Furniture | 1978 | Total exemption (full) |
| L S M LIMITED | Other manufacturing | 1979 | Total exemption (full) |
| GEISMAR (UK) LIMITED | Ships, aircraft, rail and other transport | 1980 | Full accounts |
| PARK SCIENTIFIC LTD | Chemicals | 1981 | Total exemption (full) |
| MAHLE FILTER SYSTEMS UK LIMITED | Motor vehicles and parts | 1981 | Full accounts |
| MISWA CHEMICALS LIMITED | Chemicals | 1981 | Full accounts |
| QUINTON MAJOR PRECISION LIMITED | Fabricated metal products | 1982 | Total exemption (full) |
| LINDAB LIMITED | Basic metals | 1982 | Full accounts |
| J L AND COMPANY LIMITED | Leather goods and footwear | 1982 | Full accounts |
| SPRING LINE LIMITED | Leather goods and footwear | 1982 | Unaudited abridged |
| TURBO TECHNICS LIMITED | Computers, electronics and optics | 1982 | Total exemption (full) |
| RADIO STRUCTURES LIMITED | Computers, electronics and optics | 1983 | Total exemption (full) |
| METROL SPRINGS LIMITED | Fabricated metal products | 1985 | Small company accounts |
| DODFORD PROPERTIES LIMITED | Printing and recorded media | 1985 | Total exemption (full) |
| MARREN MICROWAVE LIMITED | Repair and installation of machinery | 1985 | Medium company accounts |
| DELKIM PRODUCTS LIMITED | Other manufacturing | 1985 | Total exemption (full) |
| CHRYSALIS CLOTHES LIMITED | Clothing | 1985 | Total exemption (full) |
| HADDONSTONE LIMITED | Other manufacturing | 1986 | Full accounts |
| CONVEYOR LINES LIMITED | Fabricated metal products | 1986 | Unaudited abridged |
| OT19 LIMITED | Paper and paperboard | 1986 | Total exemption (full) |
| SCHUMACHER RACING PRODUCTS LIMITED | Other manufacturing | 1987 | Total exemption (full) |
| KAB SEATING LIMITED | Motor vehicles and parts | 1987 | Full accounts |
| SALCEY PRECISION ENGINEERING LTD. | Fabricated metal products | 1987 | Total exemption (full) |
| HORIBA UK LIMITED | Computers, electronics and optics | 1988 | Full accounts |
| COLORPHAZE LIMITED | Other manufacturing | 1988 | Total exemption (full) |
| STUDFAST STUD WELDING LIMITED | Fabricated metal products | 1988 | Unaudited abridged |
| TRISTAR STATIONERY LIMITED | Paper and paperboard | 1988 | Total exemption (full) |
| HEAT TREATMENTS (NORTHAMPTON) LIMITED | Fabricated metal products | 1989 | Total exemption (full) |
| TANDLER PRECISION LIMITED | Other manufacturing | 1989 | Small company accounts |
| RACE FURNITURE LIMITED | Furniture | 1989 | Small company accounts |
| LIONMEDE LIMITED | Fabricated metal products | 1990 | Unaudited abridged |