| Manufacturer | Sector | Year | Accounts type |
|---|---|---|---|
| S.I.R.S. NAVIGATION LIMITED | Ships, aircraft, rail and other transport | 1977 | Total exemption (full) |
| ROBOTAS TECHNOLOGIES LIMITED | Machinery and equipment | 2001 | Total exemption (full) |
| P J DRILLING LIMITED | Other manufacturing | 2002 | Total exemption (full) |
| MASTERWAVES LIMITED | Repair and installation of machinery | 2008 | Total exemption (full) |
| SIRS ENGRAVING LIMITED | Fabricated metal products | 2009 | Total exemption (full) |