| FOUNDRAX ENGINEERING PRODUCTS LIMITED | Other manufacturing | 1948 | Total exemption (full) |
| MORRIS & PERRY LIMITED | Glass, ceramics, cement and stone | 1962 | Full accounts |
| S MORRIS LIMITED | Glass, ceramics, cement and stone | 1963 | Full accounts |
| AVALON SCIENCES LIMITED | Computers, electronics and optics | 1987 | Group accounts |
| SOMERTON JOINERY LIMITED | Wood products | 1991 | Total exemption (full) |
| TOR TRUCKS LIMITED | Repair and installation of machinery | 1992 | Total exemption (full) |
| B & Y ENGINEERING LIMITED | Machinery and equipment | 2003 | Total exemption (full) |
| ROBERT RICE CONTRACTORS LIMITED | Wood products | 2008 | Total exemption (full) |
| STAYINPHASE LIMITED | Machinery and equipment | 2010 | Total exemption (full) |