| ERCOL FURNITURE LIMITED | Furniture | 1920 | Full accounts |
| HYPNOS LIMITED | Furniture | 1926 | Full accounts |
| CHILTERN CIRCUITS LIMITED | Electrical equipment | 1981 | Unaudited abridged |
| COMBINED SERVICES (GB) LIMITED | Electrical equipment | 1992 | Total exemption (full) |
| MANDOLYN LIMITED | Other manufacturing | 1996 | Total exemption (full) |
| BRIGHTER MANUFACTURING LIMITED | Machinery and equipment | 1999 | Total exemption (full) |
| SMARTLOCK ACCESS CONTROL LIMITED | Electrical equipment | 2000 | Total exemption (full) |
| TANDOORI OVEN LIMITED | Machinery and equipment | 2003 | Total exemption (full) |
| RESOURCE PRINT MANAGEMENT LIMITED | Printing and recorded media | 2004 | Total exemption (full) |
| DURASHINE AUTO BODY RESTORATION LTD | Repair and installation of machinery | 2006 | Total exemption (full) |
| MARGAN LTD | Furniture | 2007 | Total exemption (full) |
| FLO-DYNE CONTROLS (UK) LIMITED | Fabricated metal products | 2010 | Total exemption (full) |