| Manufacturer | Sector | Year | Accounts type |
|---|---|---|---|
| FELINFOEL BREWERY COMPANY LIMITED(THE) | Beverages | 1906 | Total exemption (full) |
| R.I.B. - KOTI LIMITED | Other manufacturing | 1975 | Small company accounts |
| MELINGOED LIMITED | Wood products | 1999 | Total exemption (full) |
| FLOODGATE LTD | Fabricated metal products | 2001 | Total exemption (full) |
| HAFOD WATER LIMITED | Beverages | 2003 | Total exemption (full) |