| SEI IDENTIFICATION SOLUTIONS LTD | Printing and recorded media | 1946 | Total exemption (full) |
| SILENT GLISS LIMITED | Other manufacturing | 1954 | Group accounts |
| SERICOL LIMITED | Other manufacturing | 1965 | Full accounts |
| BLAZE SIGNS LIMITED | Other manufacturing | 1980 | Full accounts |
| SOUTHERN ANTENNAE LIMITED | Computers, electronics and optics | 1983 | Total exemption (full) |
| HARRY LEVY AMUSEMENT CONTRACTOR LIMITED | Other manufacturing | 1984 | Full accounts |
| SOUTHERN LOCOMOTIVES LIMITED | Repair and installation of machinery | 1990 | Total exemption (full) |
| M.J. RAVEN & SON LIMITED | Fabricated metal products | 1993 | Total exemption (full) |
| FUJIFILM SPECIALITY INK SYSTEMS LIMITED | Other manufacturing | 2002 | Full accounts |
| SERICOL INK LIMITED | Other manufacturing | 2002 | Full accounts |
| FUJIFILM SERICOL OVERSEAS HOLDINGS LIMITED | Other manufacturing | 2003 | Full accounts |
| RAMSGATE BREWERY LIMITED | Beverages | 2004 | Total exemption (full) |
| R T BELL & CO (BROADSTAIRS) LIMITED | Wood products | 2004 | Total exemption (full) |
| FUJIFILM IMAGING COLORANTS LIMITED | Chemicals | 2005 | Full accounts |
| SILPRO EXTRUSIONS LTD | Rubber and plastics | 2007 | Total exemption (full) |
| SMALLBONE INTERIORS LIMITED | Furniture | 2009 | Total exemption (full) |