| SHOVE TURNPARTS LIMITED | Fabricated metal products | 1948 | Total exemption (full) |
| FRINGE ELECTRONICS LIMITED | Electrical equipment | 1978 | Small company accounts |
| WELDING ENGINEERS (HERTFORD) LIMITED | Repair and installation of machinery | 1978 | Small company accounts |
| EUROPEAN FLAVOURS & FRAGRANCES PLC | Other manufacturing | 1981 | Group accounts |
| C. U. LIGHTING LIMITED | Basic metals | 1987 | Full accounts |
| READABILITY LIMITED | Printing and recorded media | 1992 | Total exemption (full) |
| BEVERLEY HILLS INTERIORS LIMITED | Textiles | 1994 | Total exemption (full) |
| GSPK CIRCUITS LIMITED | Computers, electronics and optics | 1995 | Medium company accounts |
| M V PLASTICS LIMITED | Chemicals | 1999 | Small company accounts |
| GIBBS-SANDTECH LIMITED | Machinery and equipment | 2001 | Total exemption (full) |
| SMITH TAYLORMADE (TRADE) LIMITED | Food products | 2002 | Unaudited abridged |
| MARSHALL DOUBLE GLAZING LIMITED | Other manufacturing | 2003 | Total exemption (full) |
| THE PRINTWORKS (ROYSTON) LIMITED | Paper and paperboard | 2006 | Total exemption (full) |